![Damien George](/assets/img/avatar_default.png)
Function annotations are only needed when the native emitter is enabled and when the current scope is emitted in viper mode. All other times the annotations can be skipped completely.
3495 lines
141 KiB
C
3495 lines
141 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "py/scope.h"
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#include "py/emit.h"
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#include "py/compile.h"
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#include "py/smallint.h"
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#include "py/runtime.h"
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#include "py/builtin.h"
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// TODO need to mangle __attr names
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typedef enum {
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#define DEF_RULE(rule, comp, kind, ...) PN_##rule,
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#include "py/grammar.h"
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#undef DEF_RULE
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PN_maximum_number_of,
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PN_string, // special node for non-interned string
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PN_bytes, // special node for non-interned bytes
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PN_const_object, // special node for a constant, generic Python object
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} pn_kind_t;
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#define NEED_METHOD_TABLE MICROPY_EMIT_NATIVE
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#if NEED_METHOD_TABLE
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// we need a method table to do the lookup for the emitter functions
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#define EMIT(fun) (comp->emit_method_table->fun(comp->emit))
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#define EMIT_ARG(fun, ...) (comp->emit_method_table->fun(comp->emit, __VA_ARGS__))
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#define EMIT_LOAD_FAST(qst, local_num) (comp->emit_method_table->load_id.fast(comp->emit, qst, local_num))
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#define EMIT_LOAD_GLOBAL(qst) (comp->emit_method_table->load_id.global(comp->emit, qst))
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#define EMIT_INLINE_ASM(fun) (comp->emit_inline_asm_method_table->fun(comp->emit_inline_asm))
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#define EMIT_INLINE_ASM_ARG(fun, ...) (comp->emit_inline_asm_method_table->fun(comp->emit_inline_asm, __VA_ARGS__))
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#else
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// if we only have the bytecode emitter enabled then we can do a direct call to the functions
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#define EMIT(fun) (mp_emit_bc_##fun(comp->emit))
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#define EMIT_ARG(fun, ...) (mp_emit_bc_##fun(comp->emit, __VA_ARGS__))
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#define EMIT_LOAD_FAST(qst, local_num) (mp_emit_bc_load_fast(comp->emit, qst, local_num))
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#define EMIT_LOAD_GLOBAL(qst) (mp_emit_bc_load_global(comp->emit, qst))
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#endif
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// elements in this struct are ordered to make it compact
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typedef struct _compiler_t {
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qstr source_file;
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uint8_t is_repl;
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uint8_t pass; // holds enum type pass_kind_t
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uint8_t func_arg_is_super; // used to compile special case of super() function call
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uint8_t have_star;
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// try to keep compiler clean from nlr
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mp_obj_t compile_error; // set to an exception object if there's an error
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mp_uint_t compile_error_line; // set to best guess of line of error
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uint next_label;
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uint16_t num_dict_params;
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uint16_t num_default_params;
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uint16_t break_label; // highest bit set indicates we are breaking out of a for loop
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uint16_t continue_label;
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uint16_t cur_except_level; // increased for SETUP_EXCEPT, SETUP_FINALLY; decreased for POP_BLOCK, POP_EXCEPT
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uint16_t break_continue_except_level;
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scope_t *scope_head;
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scope_t *scope_cur;
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emit_t *emit; // current emitter
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#if NEED_METHOD_TABLE
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const emit_method_table_t *emit_method_table; // current emit method table
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#endif
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#if MICROPY_EMIT_INLINE_THUMB
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emit_inline_asm_t *emit_inline_asm; // current emitter for inline asm
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const emit_inline_asm_method_table_t *emit_inline_asm_method_table; // current emit method table for inline asm
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#endif
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} compiler_t;
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STATIC void compile_error_set_line(compiler_t *comp, mp_parse_node_t pn) {
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// if the line of the error is unknown then try to update it from the pn
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if (comp->compile_error_line == 0 && MP_PARSE_NODE_IS_STRUCT(pn)) {
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comp->compile_error_line = (mp_uint_t)((mp_parse_node_struct_t*)pn)->source_line;
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}
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}
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STATIC void compile_syntax_error(compiler_t *comp, mp_parse_node_t pn, const char *msg) {
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// only register the error if there has been no other error
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if (comp->compile_error == MP_OBJ_NULL) {
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comp->compile_error = mp_obj_new_exception_msg(&mp_type_SyntaxError, msg);
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compile_error_set_line(comp, pn);
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}
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}
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#if MICROPY_COMP_MODULE_CONST
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STATIC const mp_map_elem_t mp_constants_table[] = {
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#if MICROPY_PY_UCTYPES
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{ MP_OBJ_NEW_QSTR(MP_QSTR_uctypes), (mp_obj_t)&mp_module_uctypes },
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#endif
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// Extra constants as defined by a port
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MICROPY_PORT_CONSTANTS
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};
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STATIC MP_DEFINE_CONST_MAP(mp_constants_map, mp_constants_table);
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#endif
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// this function is essentially a simple preprocessor
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STATIC mp_parse_node_t fold_constants(compiler_t *comp, mp_parse_node_t pn, mp_map_t *consts) {
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if (0) {
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// dummy
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#if MICROPY_COMP_CONST
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} else if (MP_PARSE_NODE_IS_ID(pn)) {
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// lookup identifier in table of dynamic constants
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qstr qst = MP_PARSE_NODE_LEAF_ARG(pn);
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mp_map_elem_t *elem = mp_map_lookup(consts, MP_OBJ_NEW_QSTR(qst), MP_MAP_LOOKUP);
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if (elem != NULL) {
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, MP_OBJ_SMALL_INT_VALUE(elem->value));
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}
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#endif
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} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
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mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
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// fold some parse nodes before folding their arguments
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switch (MP_PARSE_NODE_STRUCT_KIND(pns)) {
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#if MICROPY_COMP_CONST
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case PN_expr_stmt:
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if (!MP_PARSE_NODE_IS_NULL(pns->nodes[1])) {
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mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
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if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_expr_stmt_assign) {
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if (MP_PARSE_NODE_IS_ID(pns->nodes[0])
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&& MP_PARSE_NODE_IS_STRUCT_KIND(pns1->nodes[0], PN_power)
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&& MP_PARSE_NODE_IS_ID(((mp_parse_node_struct_t*)pns1->nodes[0])->nodes[0])
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&& MP_PARSE_NODE_LEAF_ARG(((mp_parse_node_struct_t*)pns1->nodes[0])->nodes[0]) == MP_QSTR_const
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&& MP_PARSE_NODE_IS_STRUCT_KIND(((mp_parse_node_struct_t*)pns1->nodes[0])->nodes[1], PN_trailer_paren)
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&& MP_PARSE_NODE_IS_NULL(((mp_parse_node_struct_t*)pns1->nodes[0])->nodes[2])
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) {
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// code to assign dynamic constants: id = const(value)
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// get the id
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qstr id_qstr = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
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// get the value
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mp_parse_node_t pn_value = ((mp_parse_node_struct_t*)((mp_parse_node_struct_t*)pns1->nodes[0])->nodes[1])->nodes[0];
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pn_value = fold_constants(comp, pn_value, consts);
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if (!MP_PARSE_NODE_IS_SMALL_INT(pn_value)) {
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compile_syntax_error(comp, (mp_parse_node_t)pns, "constant must be an integer");
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break;
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}
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mp_int_t value = MP_PARSE_NODE_LEAF_SMALL_INT(pn_value);
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// store the value in the table of dynamic constants
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mp_map_elem_t *elem = mp_map_lookup(consts, MP_OBJ_NEW_QSTR(id_qstr), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
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if (elem->value != MP_OBJ_NULL) {
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compile_syntax_error(comp, (mp_parse_node_t)pns, "constant redefined");
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break;
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}
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elem->value = MP_OBJ_NEW_SMALL_INT(value);
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// replace const(value) with value
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pns1->nodes[0] = pn_value;
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// finished folding this assignment
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return pn;
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}
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}
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}
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break;
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#endif
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case PN_string:
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case PN_bytes:
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case PN_const_object:
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return pn;
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}
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// fold arguments
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int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
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for (int i = 0; i < n; i++) {
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pns->nodes[i] = fold_constants(comp, pns->nodes[i], consts);
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}
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// try to fold this parse node
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switch (MP_PARSE_NODE_STRUCT_KIND(pns)) {
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case PN_atom_paren:
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if (n == 1 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0])) {
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// (int)
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pn = pns->nodes[0];
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}
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break;
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case PN_expr:
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if (n == 2 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[1])) {
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// int | int
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mp_int_t arg0 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[0]);
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mp_int_t arg1 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[1]);
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 | arg1);
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}
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break;
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case PN_and_expr:
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if (n == 2 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[1])) {
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// int & int
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mp_int_t arg0 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[0]);
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mp_int_t arg1 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[1]);
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 & arg1);
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}
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break;
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case PN_shift_expr:
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if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
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mp_int_t arg0 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[0]);
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mp_int_t arg1 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[2]);
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if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_LESS)) {
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// int << int
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if (!(arg1 >= (mp_int_t)BITS_PER_WORD || arg0 > (MP_SMALL_INT_MAX >> arg1) || arg0 < (MP_SMALL_INT_MIN >> arg1))) {
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 << arg1);
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}
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} else {
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assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_MORE)); // should be
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// int >> int
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if (arg1 >= (mp_int_t)BITS_PER_WORD) {
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// Shifting to big amounts is underfined behavior
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// in C and is CPU-dependent; propagate sign bit.
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arg1 = BITS_PER_WORD - 1;
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}
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0 >> arg1);
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}
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}
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break;
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case PN_arith_expr:
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// overflow checking here relies on SMALL_INT being strictly smaller than mp_int_t
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if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
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mp_int_t arg0 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[0]);
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mp_int_t arg1 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[2]);
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if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PLUS)) {
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// int + int
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arg0 += arg1;
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} else {
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assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_MINUS)); // should be
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// int - int
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arg0 -= arg1;
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}
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if (MP_SMALL_INT_FITS(arg0)) {
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0);
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}
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}
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break;
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case PN_term:
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if (n == 3 && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[0]) && MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[2])) {
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mp_int_t arg0 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[0]);
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mp_int_t arg1 = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[2]);
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if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_STAR)) {
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// int * int
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if (!mp_small_int_mul_overflow(arg0, arg1)) {
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arg0 *= arg1;
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if (MP_SMALL_INT_FITS(arg0)) {
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg0);
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}
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}
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} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_SLASH)) {
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// int / int
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// pass
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} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_PERCENT)) {
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// int%int
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, mp_small_int_modulo(arg0, arg1));
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} else {
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assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_DBL_SLASH)); // should be
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if (arg1 != 0) {
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// int // int
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, mp_small_int_floor_divide(arg0, arg1));
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}
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}
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}
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break;
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case PN_factor_2:
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if (MP_PARSE_NODE_IS_SMALL_INT(pns->nodes[1])) {
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mp_int_t arg = MP_PARSE_NODE_LEAF_SMALL_INT(pns->nodes[1]);
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if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_PLUS)) {
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// +int
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, arg);
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} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_MINUS)) {
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// -int
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, -arg);
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} else {
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assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_TILDE)); // should be
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// ~int
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, ~arg);
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}
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}
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break;
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case PN_power:
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if (0) {
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#if MICROPY_COMP_MODULE_CONST
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} else if (MP_PARSE_NODE_IS_ID(pns->nodes[0]) && MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_trailer_period) && MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
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// id.id
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// look it up in constant table, see if it can be replaced with an integer
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mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
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assert(MP_PARSE_NODE_IS_ID(pns1->nodes[0]));
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qstr q_base = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
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qstr q_attr = MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]);
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mp_map_elem_t *elem = mp_map_lookup((mp_map_t*)&mp_constants_map, MP_OBJ_NEW_QSTR(q_base), MP_MAP_LOOKUP);
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if (elem != NULL) {
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mp_obj_t dest[2];
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mp_load_method_maybe(elem->value, q_attr, dest);
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if (MP_OBJ_IS_SMALL_INT(dest[0]) && dest[1] == NULL) {
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mp_int_t val = MP_OBJ_SMALL_INT_VALUE(dest[0]);
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pn = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, val);
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}
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}
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#endif
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}
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break;
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}
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}
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return pn;
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}
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STATIC void compile_trailer_paren_helper(compiler_t *comp, mp_parse_node_t pn_arglist, bool is_method_call, int n_positional_extra);
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STATIC void compile_comprehension(compiler_t *comp, mp_parse_node_struct_t *pns, scope_kind_t kind);
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STATIC void compile_node(compiler_t *comp, mp_parse_node_t pn);
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STATIC uint comp_next_label(compiler_t *comp) {
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return comp->next_label++;
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}
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STATIC void compile_increase_except_level(compiler_t *comp) {
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comp->cur_except_level += 1;
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if (comp->cur_except_level > comp->scope_cur->exc_stack_size) {
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comp->scope_cur->exc_stack_size = comp->cur_except_level;
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}
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}
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STATIC void compile_decrease_except_level(compiler_t *comp) {
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assert(comp->cur_except_level > 0);
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comp->cur_except_level -= 1;
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}
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STATIC scope_t *scope_new_and_link(compiler_t *comp, scope_kind_t kind, mp_parse_node_t pn, uint emit_options) {
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scope_t *scope = scope_new(kind, pn, comp->source_file, emit_options);
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scope->parent = comp->scope_cur;
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scope->next = NULL;
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if (comp->scope_head == NULL) {
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comp->scope_head = scope;
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} else {
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scope_t *s = comp->scope_head;
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while (s->next != NULL) {
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s = s->next;
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}
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s->next = scope;
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}
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return scope;
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}
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|
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typedef void (*apply_list_fun_t)(compiler_t *comp, mp_parse_node_t pn);
|
|
|
|
STATIC void apply_to_single_or_list(compiler_t *comp, mp_parse_node_t pn, pn_kind_t pn_list_kind, apply_list_fun_t f) {
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, pn_list_kind)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
for (int i = 0; i < num_nodes; i++) {
|
|
f(comp, pns->nodes[i]);
|
|
}
|
|
} else if (!MP_PARSE_NODE_IS_NULL(pn)) {
|
|
f(comp, pn);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_generic_all_nodes(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
for (int i = 0; i < num_nodes; i++) {
|
|
compile_node(comp, pns->nodes[i]);
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
// add line info for the error in case it didn't have a line number
|
|
compile_error_set_line(comp, pns->nodes[i]);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_load_id(compiler_t *comp, qstr qst) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
mp_emit_common_get_id_for_load(comp->scope_cur, qst);
|
|
} else {
|
|
#if NEED_METHOD_TABLE
|
|
mp_emit_common_id_op(comp->emit, &comp->emit_method_table->load_id, comp->scope_cur, qst);
|
|
#else
|
|
mp_emit_common_id_op(comp->emit, &mp_emit_bc_method_table_load_id_ops, comp->scope_cur, qst);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
STATIC void compile_store_id(compiler_t *comp, qstr qst) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
mp_emit_common_get_id_for_modification(comp->scope_cur, qst);
|
|
} else {
|
|
#if NEED_METHOD_TABLE
|
|
mp_emit_common_id_op(comp->emit, &comp->emit_method_table->store_id, comp->scope_cur, qst);
|
|
#else
|
|
mp_emit_common_id_op(comp->emit, &mp_emit_bc_method_table_store_id_ops, comp->scope_cur, qst);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
STATIC void compile_delete_id(compiler_t *comp, qstr qst) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
mp_emit_common_get_id_for_modification(comp->scope_cur, qst);
|
|
} else {
|
|
#if NEED_METHOD_TABLE
|
|
mp_emit_common_id_op(comp->emit, &comp->emit_method_table->delete_id, comp->scope_cur, qst);
|
|
#else
|
|
mp_emit_common_id_op(comp->emit, &mp_emit_bc_method_table_delete_id_ops, comp->scope_cur, qst);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
STATIC void c_tuple(compiler_t *comp, mp_parse_node_t pn, mp_parse_node_struct_t *pns_list) {
|
|
int total = 0;
|
|
if (!MP_PARSE_NODE_IS_NULL(pn)) {
|
|
compile_node(comp, pn);
|
|
total += 1;
|
|
}
|
|
if (pns_list != NULL) {
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns_list);
|
|
for (int i = 0; i < n; i++) {
|
|
compile_node(comp, pns_list->nodes[i]);
|
|
}
|
|
total += n;
|
|
}
|
|
EMIT_ARG(build_tuple, total);
|
|
}
|
|
|
|
STATIC void compile_generic_tuple(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// a simple tuple expression
|
|
c_tuple(comp, MP_PARSE_NODE_NULL, pns);
|
|
}
|
|
|
|
STATIC bool node_is_const_false(mp_parse_node_t pn) {
|
|
return MP_PARSE_NODE_IS_TOKEN_KIND(pn, MP_TOKEN_KW_FALSE)
|
|
|| (MP_PARSE_NODE_IS_SMALL_INT(pn) && MP_PARSE_NODE_LEAF_SMALL_INT(pn) == 0);
|
|
}
|
|
|
|
STATIC bool node_is_const_true(mp_parse_node_t pn) {
|
|
return MP_PARSE_NODE_IS_TOKEN_KIND(pn, MP_TOKEN_KW_TRUE)
|
|
|| (MP_PARSE_NODE_IS_SMALL_INT(pn) && MP_PARSE_NODE_LEAF_SMALL_INT(pn) != 0);
|
|
}
|
|
|
|
STATIC void c_if_cond(compiler_t *comp, mp_parse_node_t pn, bool jump_if, int label) {
|
|
if (node_is_const_false(pn)) {
|
|
if (jump_if == false) {
|
|
EMIT_ARG(jump, label);
|
|
}
|
|
return;
|
|
} else if (node_is_const_true(pn)) {
|
|
if (jump_if == true) {
|
|
EMIT_ARG(jump, label);
|
|
}
|
|
return;
|
|
} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_or_test) {
|
|
if (jump_if == false) {
|
|
and_or_logic1:;
|
|
uint label2 = comp_next_label(comp);
|
|
for (int i = 0; i < n - 1; i++) {
|
|
c_if_cond(comp, pns->nodes[i], !jump_if, label2);
|
|
}
|
|
c_if_cond(comp, pns->nodes[n - 1], jump_if, label);
|
|
EMIT_ARG(label_assign, label2);
|
|
} else {
|
|
and_or_logic2:
|
|
for (int i = 0; i < n; i++) {
|
|
c_if_cond(comp, pns->nodes[i], jump_if, label);
|
|
}
|
|
}
|
|
return;
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_and_test) {
|
|
if (jump_if == false) {
|
|
goto and_or_logic2;
|
|
} else {
|
|
goto and_or_logic1;
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_not_test_2) {
|
|
c_if_cond(comp, pns->nodes[0], !jump_if, label);
|
|
return;
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_atom_paren) {
|
|
// cond is something in parenthesis
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// empty tuple, acts as false for the condition
|
|
if (jump_if == false) {
|
|
EMIT_ARG(jump, label);
|
|
}
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
|
|
// non-empty tuple, acts as true for the condition
|
|
if (jump_if == true) {
|
|
EMIT_ARG(jump, label);
|
|
}
|
|
} else {
|
|
// parenthesis around 1 item, is just that item
|
|
c_if_cond(comp, pns->nodes[0], jump_if, label);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
// nothing special, fall back to default compiling for node and jump
|
|
compile_node(comp, pn);
|
|
EMIT_ARG(pop_jump_if, jump_if, label);
|
|
}
|
|
|
|
typedef enum { ASSIGN_STORE, ASSIGN_AUG_LOAD, ASSIGN_AUG_STORE } assign_kind_t;
|
|
STATIC void c_assign(compiler_t *comp, mp_parse_node_t pn, assign_kind_t kind);
|
|
|
|
STATIC void c_assign_power(compiler_t *comp, mp_parse_node_struct_t *pns, assign_kind_t assign_kind) {
|
|
if (assign_kind != ASSIGN_AUG_STORE) {
|
|
compile_node(comp, pns->nodes[0]);
|
|
}
|
|
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
|
|
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_power_trailers) {
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns1);
|
|
if (assign_kind != ASSIGN_AUG_STORE) {
|
|
for (int i = 0; i < n - 1; i++) {
|
|
compile_node(comp, pns1->nodes[i]);
|
|
}
|
|
}
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns1->nodes[n - 1]));
|
|
pns1 = (mp_parse_node_struct_t*)pns1->nodes[n - 1];
|
|
}
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_bracket) {
|
|
if (assign_kind == ASSIGN_AUG_STORE) {
|
|
EMIT(rot_three);
|
|
EMIT(store_subscr);
|
|
} else {
|
|
compile_node(comp, pns1->nodes[0]);
|
|
if (assign_kind == ASSIGN_AUG_LOAD) {
|
|
EMIT(dup_top_two);
|
|
EMIT(load_subscr);
|
|
} else {
|
|
EMIT(store_subscr);
|
|
}
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_period) {
|
|
assert(MP_PARSE_NODE_IS_ID(pns1->nodes[0]));
|
|
if (assign_kind == ASSIGN_AUG_LOAD) {
|
|
EMIT(dup_top);
|
|
EMIT_ARG(load_attr, MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]));
|
|
} else {
|
|
if (assign_kind == ASSIGN_AUG_STORE) {
|
|
EMIT(rot_two);
|
|
}
|
|
EMIT_ARG(store_attr, MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]));
|
|
}
|
|
} else {
|
|
goto cannot_assign;
|
|
}
|
|
} else {
|
|
goto cannot_assign;
|
|
}
|
|
|
|
if (!MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
|
|
goto cannot_assign;
|
|
}
|
|
|
|
return;
|
|
|
|
cannot_assign:
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "can't assign to expression");
|
|
}
|
|
|
|
// we need to allow for a caller passing in 1 initial node (node_head) followed by an array of nodes (nodes_tail)
|
|
STATIC void c_assign_tuple(compiler_t *comp, mp_parse_node_t node_head, uint num_tail, mp_parse_node_t *nodes_tail) {
|
|
uint num_head = (node_head == MP_PARSE_NODE_NULL) ? 0 : 1;
|
|
|
|
// look for star expression
|
|
uint have_star_index = -1;
|
|
if (num_head != 0 && MP_PARSE_NODE_IS_STRUCT_KIND(node_head, PN_star_expr)) {
|
|
EMIT_ARG(unpack_ex, 0, num_tail);
|
|
have_star_index = 0;
|
|
}
|
|
for (uint i = 0; i < num_tail; i++) {
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(nodes_tail[i], PN_star_expr)) {
|
|
if (have_star_index == (uint)-1) {
|
|
EMIT_ARG(unpack_ex, num_head + i, num_tail - i - 1);
|
|
have_star_index = num_head + i;
|
|
} else {
|
|
compile_syntax_error(comp, nodes_tail[i], "multiple *x in assignment");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (have_star_index == (uint)-1) {
|
|
EMIT_ARG(unpack_sequence, num_head + num_tail);
|
|
}
|
|
if (num_head != 0) {
|
|
if (0 == have_star_index) {
|
|
c_assign(comp, ((mp_parse_node_struct_t*)node_head)->nodes[0], ASSIGN_STORE);
|
|
} else {
|
|
c_assign(comp, node_head, ASSIGN_STORE);
|
|
}
|
|
}
|
|
for (uint i = 0; i < num_tail; i++) {
|
|
if (num_head + i == have_star_index) {
|
|
c_assign(comp, ((mp_parse_node_struct_t*)nodes_tail[i])->nodes[0], ASSIGN_STORE);
|
|
} else {
|
|
c_assign(comp, nodes_tail[i], ASSIGN_STORE);
|
|
}
|
|
}
|
|
}
|
|
|
|
// assigns top of stack to pn
|
|
STATIC void c_assign(compiler_t *comp, mp_parse_node_t pn, assign_kind_t assign_kind) {
|
|
tail_recursion:
|
|
assert(!MP_PARSE_NODE_IS_NULL(pn));
|
|
if (MP_PARSE_NODE_IS_LEAF(pn)) {
|
|
if (MP_PARSE_NODE_IS_ID(pn)) {
|
|
qstr arg = MP_PARSE_NODE_LEAF_ARG(pn);
|
|
switch (assign_kind) {
|
|
case ASSIGN_STORE:
|
|
case ASSIGN_AUG_STORE:
|
|
compile_store_id(comp, arg);
|
|
break;
|
|
case ASSIGN_AUG_LOAD:
|
|
default:
|
|
compile_load_id(comp, arg);
|
|
break;
|
|
}
|
|
} else {
|
|
compile_syntax_error(comp, pn, "can't assign to literal");
|
|
return;
|
|
}
|
|
} else {
|
|
// pn must be a struct
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
switch (MP_PARSE_NODE_STRUCT_KIND(pns)) {
|
|
case PN_power:
|
|
// lhs is an index or attribute
|
|
c_assign_power(comp, pns, assign_kind);
|
|
break;
|
|
|
|
case PN_testlist_star_expr:
|
|
case PN_exprlist:
|
|
// lhs is a tuple
|
|
if (assign_kind != ASSIGN_STORE) {
|
|
goto bad_aug;
|
|
}
|
|
c_assign_tuple(comp, MP_PARSE_NODE_NULL, MP_PARSE_NODE_STRUCT_NUM_NODES(pns), pns->nodes);
|
|
break;
|
|
|
|
case PN_atom_paren:
|
|
// lhs is something in parenthesis
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// empty tuple
|
|
goto cannot_assign;
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
|
|
if (assign_kind != ASSIGN_STORE) {
|
|
goto bad_aug;
|
|
}
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
goto testlist_comp;
|
|
} else {
|
|
// parenthesis around 1 item, is just that item
|
|
pn = pns->nodes[0];
|
|
goto tail_recursion;
|
|
}
|
|
break;
|
|
|
|
case PN_atom_bracket:
|
|
// lhs is something in brackets
|
|
if (assign_kind != ASSIGN_STORE) {
|
|
goto bad_aug;
|
|
}
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// empty list, assignment allowed
|
|
c_assign_tuple(comp, MP_PARSE_NODE_NULL, 0, NULL);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
goto testlist_comp;
|
|
} else {
|
|
// brackets around 1 item
|
|
c_assign_tuple(comp, pns->nodes[0], 0, NULL);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
goto cannot_assign;
|
|
}
|
|
return;
|
|
|
|
testlist_comp:
|
|
// lhs is a sequence
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3b) {
|
|
// sequence of one item, with trailing comma
|
|
assert(MP_PARSE_NODE_IS_NULL(pns2->nodes[0]));
|
|
c_assign_tuple(comp, pns->nodes[0], 0, NULL);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3c) {
|
|
// sequence of many items
|
|
uint n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns2);
|
|
c_assign_tuple(comp, pns->nodes[0], n, pns2->nodes);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_comp_for) {
|
|
// TODO can we ever get here? can it be compiled?
|
|
goto cannot_assign;
|
|
} else {
|
|
// sequence with 2 items
|
|
goto sequence_with_2_items;
|
|
}
|
|
} else {
|
|
// sequence with 2 items
|
|
sequence_with_2_items:
|
|
c_assign_tuple(comp, MP_PARSE_NODE_NULL, 2, pns->nodes);
|
|
}
|
|
return;
|
|
}
|
|
return;
|
|
|
|
cannot_assign:
|
|
compile_syntax_error(comp, pn, "can't assign to expression");
|
|
return;
|
|
|
|
bad_aug:
|
|
compile_syntax_error(comp, pn, "illegal expression for augmented assignment");
|
|
}
|
|
|
|
// stuff for lambda and comprehensions and generators:
|
|
// if n_pos_defaults > 0 then there is a tuple on the stack with the positional defaults
|
|
// if n_kw_defaults > 0 then there is a dictionary on the stack with the keyword defaults
|
|
// if both exist, the tuple is above the dictionary (ie the first pop gets the tuple)
|
|
STATIC void close_over_variables_etc(compiler_t *comp, scope_t *this_scope, int n_pos_defaults, int n_kw_defaults) {
|
|
assert(n_pos_defaults >= 0);
|
|
assert(n_kw_defaults >= 0);
|
|
|
|
// make closed over variables, if any
|
|
// ensure they are closed over in the order defined in the outer scope (mainly to agree with CPython)
|
|
int nfree = 0;
|
|
if (comp->scope_cur->kind != SCOPE_MODULE) {
|
|
for (int i = 0; i < comp->scope_cur->id_info_len; i++) {
|
|
id_info_t *id = &comp->scope_cur->id_info[i];
|
|
if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
|
|
for (int j = 0; j < this_scope->id_info_len; j++) {
|
|
id_info_t *id2 = &this_scope->id_info[j];
|
|
if (id2->kind == ID_INFO_KIND_FREE && id->qst == id2->qst) {
|
|
// in Micro Python we load closures using LOAD_FAST
|
|
EMIT_LOAD_FAST(id->qst, id->local_num);
|
|
nfree += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// make the function/closure
|
|
if (nfree == 0) {
|
|
EMIT_ARG(make_function, this_scope, n_pos_defaults, n_kw_defaults);
|
|
} else {
|
|
EMIT_ARG(make_closure, this_scope, nfree, n_pos_defaults, n_kw_defaults);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_funcdef_param(compiler_t *comp, mp_parse_node_t pn) {
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_typedargslist_star)) {
|
|
comp->have_star = true;
|
|
/* don't need to distinguish bare from named star
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// bare star
|
|
} else {
|
|
// named star
|
|
}
|
|
*/
|
|
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_typedargslist_dbl_star)) {
|
|
// named double star
|
|
// TODO do we need to do anything with this?
|
|
|
|
} else {
|
|
mp_parse_node_t pn_id;
|
|
mp_parse_node_t pn_colon;
|
|
mp_parse_node_t pn_equal;
|
|
if (MP_PARSE_NODE_IS_ID(pn)) {
|
|
// this parameter is just an id
|
|
|
|
pn_id = pn;
|
|
pn_colon = MP_PARSE_NODE_NULL;
|
|
pn_equal = MP_PARSE_NODE_NULL;
|
|
|
|
} else {
|
|
// this parameter has a colon and/or equal specifier
|
|
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_typedargslist_name)); // should be
|
|
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
pn_id = pns->nodes[0];
|
|
pn_colon = pns->nodes[1];
|
|
pn_equal = pns->nodes[2];
|
|
}
|
|
|
|
if (MP_PARSE_NODE_IS_NULL(pn_equal)) {
|
|
// this parameter does not have a default value
|
|
|
|
// check for non-default parameters given after default parameters (allowed by parser, but not syntactically valid)
|
|
if (!comp->have_star && comp->num_default_params != 0) {
|
|
compile_syntax_error(comp, pn, "non-default argument follows default argument");
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
// this parameter has a default value
|
|
// in CPython, None (and True, False?) as default parameters are loaded with LOAD_NAME; don't understandy why
|
|
|
|
if (comp->have_star) {
|
|
comp->num_dict_params += 1;
|
|
// in Micro Python we put the default dict parameters into a dictionary using the bytecode
|
|
if (comp->num_dict_params == 1) {
|
|
// in Micro Python we put the default positional parameters into a tuple using the bytecode
|
|
// we need to do this here before we start building the map for the default keywords
|
|
if (comp->num_default_params > 0) {
|
|
EMIT_ARG(build_tuple, comp->num_default_params);
|
|
} else {
|
|
EMIT(load_null); // sentinel indicating empty default positional args
|
|
}
|
|
// first default dict param, so make the map
|
|
EMIT_ARG(build_map, 0);
|
|
}
|
|
|
|
// compile value then key, then store it to the dict
|
|
compile_node(comp, pn_equal);
|
|
EMIT_ARG(load_const_str, MP_PARSE_NODE_LEAF_ARG(pn_id));
|
|
EMIT(store_map);
|
|
} else {
|
|
comp->num_default_params += 1;
|
|
compile_node(comp, pn_equal);
|
|
}
|
|
}
|
|
|
|
// TODO pn_colon not implemented
|
|
(void)pn_colon;
|
|
}
|
|
}
|
|
|
|
// leaves function object on stack
|
|
// returns function name
|
|
STATIC qstr compile_funcdef_helper(compiler_t *comp, mp_parse_node_struct_t *pns, uint emit_options) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
// create a new scope for this function
|
|
scope_t *s = scope_new_and_link(comp, SCOPE_FUNCTION, (mp_parse_node_t)pns, emit_options);
|
|
// store the function scope so the compiling function can use it at each pass
|
|
pns->nodes[4] = (mp_parse_node_t)s;
|
|
}
|
|
|
|
// save variables (probably don't need to do this, since we can't have nested definitions..?)
|
|
uint old_have_star = comp->have_star;
|
|
uint old_num_dict_params = comp->num_dict_params;
|
|
uint old_num_default_params = comp->num_default_params;
|
|
|
|
// compile default parameters
|
|
comp->have_star = false;
|
|
comp->num_dict_params = 0;
|
|
comp->num_default_params = 0;
|
|
apply_to_single_or_list(comp, pns->nodes[1], PN_typedargslist, compile_funcdef_param);
|
|
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
return MP_QSTR_NULL;
|
|
}
|
|
|
|
// in Micro Python we put the default positional parameters into a tuple using the bytecode
|
|
// the default keywords args may have already made the tuple; if not, do it now
|
|
if (comp->num_default_params > 0 && comp->num_dict_params == 0) {
|
|
EMIT_ARG(build_tuple, comp->num_default_params);
|
|
EMIT(load_null); // sentinel indicating empty default keyword args
|
|
}
|
|
|
|
// get the scope for this function
|
|
scope_t *fscope = (scope_t*)pns->nodes[4];
|
|
|
|
// make the function
|
|
close_over_variables_etc(comp, fscope, comp->num_default_params, comp->num_dict_params);
|
|
|
|
// restore variables
|
|
comp->have_star = old_have_star;
|
|
comp->num_dict_params = old_num_dict_params;
|
|
comp->num_default_params = old_num_default_params;
|
|
|
|
// return its name (the 'f' in "def f(...):")
|
|
return fscope->simple_name;
|
|
}
|
|
|
|
// leaves class object on stack
|
|
// returns class name
|
|
STATIC qstr compile_classdef_helper(compiler_t *comp, mp_parse_node_struct_t *pns, uint emit_options) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
// create a new scope for this class
|
|
scope_t *s = scope_new_and_link(comp, SCOPE_CLASS, (mp_parse_node_t)pns, emit_options);
|
|
// store the class scope so the compiling function can use it at each pass
|
|
pns->nodes[3] = (mp_parse_node_t)s;
|
|
}
|
|
|
|
EMIT(load_build_class);
|
|
|
|
// scope for this class
|
|
scope_t *cscope = (scope_t*)pns->nodes[3];
|
|
|
|
// compile the class
|
|
close_over_variables_etc(comp, cscope, 0, 0);
|
|
|
|
// get its name
|
|
EMIT_ARG(load_const_str, cscope->simple_name);
|
|
|
|
// nodes[1] has parent classes, if any
|
|
// empty parenthesis (eg class C():) gets here as an empty PN_classdef_2 and needs special handling
|
|
mp_parse_node_t parents = pns->nodes[1];
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(parents, PN_classdef_2)) {
|
|
parents = MP_PARSE_NODE_NULL;
|
|
}
|
|
comp->func_arg_is_super = false;
|
|
compile_trailer_paren_helper(comp, parents, false, 2);
|
|
|
|
// return its name (the 'C' in class C(...):")
|
|
return cscope->simple_name;
|
|
}
|
|
|
|
// returns true if it was a built-in decorator (even if the built-in had an error)
|
|
STATIC bool compile_built_in_decorator(compiler_t *comp, int name_len, mp_parse_node_t *name_nodes, uint *emit_options) {
|
|
if (MP_PARSE_NODE_LEAF_ARG(name_nodes[0]) != MP_QSTR_micropython) {
|
|
return false;
|
|
}
|
|
|
|
if (name_len != 2) {
|
|
compile_syntax_error(comp, name_nodes[0], "invalid micropython decorator");
|
|
return true;
|
|
}
|
|
|
|
qstr attr = MP_PARSE_NODE_LEAF_ARG(name_nodes[1]);
|
|
if (attr == MP_QSTR_bytecode) {
|
|
*emit_options = MP_EMIT_OPT_BYTECODE;
|
|
#if MICROPY_EMIT_NATIVE
|
|
} else if (attr == MP_QSTR_native) {
|
|
*emit_options = MP_EMIT_OPT_NATIVE_PYTHON;
|
|
} else if (attr == MP_QSTR_viper) {
|
|
*emit_options = MP_EMIT_OPT_VIPER;
|
|
#endif
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
} else if (attr == MP_QSTR_asm_thumb) {
|
|
*emit_options = MP_EMIT_OPT_ASM_THUMB;
|
|
#endif
|
|
} else {
|
|
compile_syntax_error(comp, name_nodes[1], "invalid micropython decorator");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
STATIC void compile_decorated(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// get the list of decorators
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pns->nodes[0], PN_decorators, &nodes);
|
|
|
|
// inherit emit options for this function/class definition
|
|
uint emit_options = comp->scope_cur->emit_options;
|
|
|
|
// compile each decorator
|
|
int num_built_in_decorators = 0;
|
|
for (int i = 0; i < n; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(nodes[i], PN_decorator)); // should be
|
|
mp_parse_node_struct_t *pns_decorator = (mp_parse_node_struct_t*)nodes[i];
|
|
|
|
// nodes[0] contains the decorator function, which is a dotted name
|
|
mp_parse_node_t *name_nodes;
|
|
int name_len = mp_parse_node_extract_list(&pns_decorator->nodes[0], PN_dotted_name, &name_nodes);
|
|
|
|
// check for built-in decorators
|
|
if (compile_built_in_decorator(comp, name_len, name_nodes, &emit_options)) {
|
|
// this was a built-in
|
|
num_built_in_decorators += 1;
|
|
|
|
} else {
|
|
// not a built-in, compile normally
|
|
|
|
// compile the decorator function
|
|
compile_node(comp, name_nodes[0]);
|
|
for (int j = 1; j < name_len; j++) {
|
|
assert(MP_PARSE_NODE_IS_ID(name_nodes[j])); // should be
|
|
EMIT_ARG(load_attr, MP_PARSE_NODE_LEAF_ARG(name_nodes[j]));
|
|
}
|
|
|
|
// nodes[1] contains arguments to the decorator function, if any
|
|
if (!MP_PARSE_NODE_IS_NULL(pns_decorator->nodes[1])) {
|
|
// call the decorator function with the arguments in nodes[1]
|
|
comp->func_arg_is_super = false;
|
|
compile_node(comp, pns_decorator->nodes[1]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// compile the body (funcdef or classdef) and get its name
|
|
mp_parse_node_struct_t *pns_body = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
qstr body_name = 0;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns_body) == PN_funcdef) {
|
|
body_name = compile_funcdef_helper(comp, pns_body, emit_options);
|
|
} else {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns_body) == PN_classdef); // should be
|
|
body_name = compile_classdef_helper(comp, pns_body, emit_options);
|
|
}
|
|
|
|
// call each decorator
|
|
for (int i = 0; i < n - num_built_in_decorators; i++) {
|
|
EMIT_ARG(call_function, 1, 0, 0);
|
|
}
|
|
|
|
// store func/class object into name
|
|
compile_store_id(comp, body_name);
|
|
}
|
|
|
|
STATIC void compile_funcdef(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
qstr fname = compile_funcdef_helper(comp, pns, comp->scope_cur->emit_options);
|
|
// store function object into function name
|
|
compile_store_id(comp, fname);
|
|
}
|
|
|
|
STATIC void c_del_stmt(compiler_t *comp, mp_parse_node_t pn) {
|
|
if (MP_PARSE_NODE_IS_ID(pn)) {
|
|
compile_delete_id(comp, MP_PARSE_NODE_LEAF_ARG(pn));
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_power)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
|
|
compile_node(comp, pns->nodes[0]); // base of the power node
|
|
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
|
|
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_power_trailers) {
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns1);
|
|
for (int i = 0; i < n - 1; i++) {
|
|
compile_node(comp, pns1->nodes[i]);
|
|
}
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns1->nodes[n - 1]));
|
|
pns1 = (mp_parse_node_struct_t*)pns1->nodes[n - 1];
|
|
}
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_bracket) {
|
|
compile_node(comp, pns1->nodes[0]);
|
|
EMIT(delete_subscr);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_trailer_period) {
|
|
assert(MP_PARSE_NODE_IS_ID(pns1->nodes[0]));
|
|
EMIT_ARG(delete_attr, MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0]));
|
|
} else {
|
|
goto cannot_delete;
|
|
}
|
|
} else {
|
|
goto cannot_delete;
|
|
}
|
|
|
|
if (!MP_PARSE_NODE_IS_NULL(pns->nodes[2])) {
|
|
goto cannot_delete;
|
|
}
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_atom_paren)) {
|
|
pn = ((mp_parse_node_struct_t*)pn)->nodes[0];
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_testlist_comp)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
// TODO perhaps factorise testlist_comp code with other uses of PN_testlist_comp
|
|
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
|
|
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_testlist_comp_3b) {
|
|
// sequence of one item, with trailing comma
|
|
assert(MP_PARSE_NODE_IS_NULL(pns1->nodes[0]));
|
|
c_del_stmt(comp, pns->nodes[0]);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_testlist_comp_3c) {
|
|
// sequence of many items
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns1);
|
|
c_del_stmt(comp, pns->nodes[0]);
|
|
for (int i = 0; i < n; i++) {
|
|
c_del_stmt(comp, pns1->nodes[i]);
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_comp_for) {
|
|
// TODO not implemented; can't del comprehension? can we get here?
|
|
goto cannot_delete;
|
|
} else {
|
|
// sequence with 2 items
|
|
goto sequence_with_2_items;
|
|
}
|
|
} else {
|
|
// sequence with 2 items
|
|
sequence_with_2_items:
|
|
c_del_stmt(comp, pns->nodes[0]);
|
|
c_del_stmt(comp, pns->nodes[1]);
|
|
}
|
|
} else {
|
|
// tuple with 1 element
|
|
c_del_stmt(comp, pn);
|
|
}
|
|
} else {
|
|
// TODO is there anything else to implement?
|
|
goto cannot_delete;
|
|
}
|
|
|
|
return;
|
|
|
|
cannot_delete:
|
|
compile_syntax_error(comp, (mp_parse_node_t)pn, "can't delete expression");
|
|
}
|
|
|
|
STATIC void compile_del_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
apply_to_single_or_list(comp, pns->nodes[0], PN_exprlist, c_del_stmt);
|
|
}
|
|
|
|
STATIC void compile_break_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->break_label == 0) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "'break' outside loop");
|
|
}
|
|
assert(comp->cur_except_level >= comp->break_continue_except_level);
|
|
EMIT_ARG(break_loop, comp->break_label, comp->cur_except_level - comp->break_continue_except_level);
|
|
}
|
|
|
|
STATIC void compile_continue_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->continue_label == 0) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "'continue' outside loop");
|
|
}
|
|
assert(comp->cur_except_level >= comp->break_continue_except_level);
|
|
EMIT_ARG(continue_loop, comp->continue_label, comp->cur_except_level - comp->break_continue_except_level);
|
|
}
|
|
|
|
STATIC void compile_return_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->scope_cur->kind != SCOPE_FUNCTION) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "'return' outside function");
|
|
return;
|
|
}
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// no argument to 'return', so return None
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_test_if_expr)) {
|
|
// special case when returning an if-expression; to match CPython optimisation
|
|
mp_parse_node_struct_t *pns_test_if_expr = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
mp_parse_node_struct_t *pns_test_if_else = (mp_parse_node_struct_t*)pns_test_if_expr->nodes[1];
|
|
|
|
uint l_fail = comp_next_label(comp);
|
|
c_if_cond(comp, pns_test_if_else->nodes[0], false, l_fail); // condition
|
|
compile_node(comp, pns_test_if_expr->nodes[0]); // success value
|
|
EMIT(return_value);
|
|
EMIT_ARG(label_assign, l_fail);
|
|
compile_node(comp, pns_test_if_else->nodes[1]); // failure value
|
|
} else {
|
|
compile_node(comp, pns->nodes[0]);
|
|
}
|
|
EMIT(return_value);
|
|
}
|
|
|
|
STATIC void compile_yield_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT(pop_top);
|
|
}
|
|
|
|
STATIC void compile_raise_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// raise
|
|
EMIT_ARG(raise_varargs, 0);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_raise_stmt_arg)) {
|
|
// raise x from y
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
compile_node(comp, pns->nodes[0]);
|
|
compile_node(comp, pns->nodes[1]);
|
|
EMIT_ARG(raise_varargs, 2);
|
|
} else {
|
|
// raise x
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(raise_varargs, 1);
|
|
}
|
|
}
|
|
|
|
// q_base holds the base of the name
|
|
// eg a -> q_base=a
|
|
// a.b.c -> q_base=a
|
|
STATIC void do_import_name(compiler_t *comp, mp_parse_node_t pn, qstr *q_base) {
|
|
bool is_as = false;
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_dotted_as_name)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
// a name of the form x as y; unwrap it
|
|
*q_base = MP_PARSE_NODE_LEAF_ARG(pns->nodes[1]);
|
|
pn = pns->nodes[0];
|
|
is_as = true;
|
|
}
|
|
if (MP_PARSE_NODE_IS_NULL(pn)) {
|
|
// empty name (eg, from . import x)
|
|
*q_base = MP_QSTR_;
|
|
EMIT_ARG(import_name, MP_QSTR_); // import the empty string
|
|
} else if (MP_PARSE_NODE_IS_ID(pn)) {
|
|
// just a simple name
|
|
qstr q_full = MP_PARSE_NODE_LEAF_ARG(pn);
|
|
if (!is_as) {
|
|
*q_base = q_full;
|
|
}
|
|
EMIT_ARG(import_name, q_full);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_dotted_name)); // should be
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
{
|
|
// a name of the form a.b.c
|
|
if (!is_as) {
|
|
*q_base = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
}
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
int len = n - 1;
|
|
for (int i = 0; i < n; i++) {
|
|
len += qstr_len(MP_PARSE_NODE_LEAF_ARG(pns->nodes[i]));
|
|
}
|
|
byte *q_ptr;
|
|
byte *str_dest = qstr_build_start(len, &q_ptr);
|
|
for (int i = 0; i < n; i++) {
|
|
if (i > 0) {
|
|
*str_dest++ = '.';
|
|
}
|
|
mp_uint_t str_src_len;
|
|
const byte *str_src = qstr_data(MP_PARSE_NODE_LEAF_ARG(pns->nodes[i]), &str_src_len);
|
|
memcpy(str_dest, str_src, str_src_len);
|
|
str_dest += str_src_len;
|
|
}
|
|
qstr q_full = qstr_build_end(q_ptr);
|
|
EMIT_ARG(import_name, q_full);
|
|
if (is_as) {
|
|
for (int i = 1; i < n; i++) {
|
|
EMIT_ARG(load_attr, MP_PARSE_NODE_LEAF_ARG(pns->nodes[i]));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_dotted_as_name(compiler_t *comp, mp_parse_node_t pn) {
|
|
EMIT_ARG(load_const_small_int, 0); // level 0 import
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE); // not importing from anything
|
|
qstr q_base;
|
|
do_import_name(comp, pn, &q_base);
|
|
compile_store_id(comp, q_base);
|
|
}
|
|
|
|
STATIC void compile_import_name(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
apply_to_single_or_list(comp, pns->nodes[0], PN_dotted_as_names, compile_dotted_as_name);
|
|
}
|
|
|
|
STATIC void compile_import_from(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
mp_parse_node_t pn_import_source = pns->nodes[0];
|
|
|
|
// extract the preceeding .'s (if any) for a relative import, to compute the import level
|
|
uint import_level = 0;
|
|
do {
|
|
mp_parse_node_t pn_rel;
|
|
if (MP_PARSE_NODE_IS_TOKEN(pn_import_source) || MP_PARSE_NODE_IS_STRUCT_KIND(pn_import_source, PN_one_or_more_period_or_ellipsis)) {
|
|
// This covers relative imports with dots only like "from .. import"
|
|
pn_rel = pn_import_source;
|
|
pn_import_source = MP_PARSE_NODE_NULL;
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn_import_source, PN_import_from_2b)) {
|
|
// This covers relative imports starting with dot(s) like "from .foo import"
|
|
mp_parse_node_struct_t *pns_2b = (mp_parse_node_struct_t*)pn_import_source;
|
|
pn_rel = pns_2b->nodes[0];
|
|
pn_import_source = pns_2b->nodes[1];
|
|
assert(!MP_PARSE_NODE_IS_NULL(pn_import_source)); // should not be
|
|
} else {
|
|
// Not a relative import
|
|
break;
|
|
}
|
|
|
|
// get the list of . and/or ...'s
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pn_rel, PN_one_or_more_period_or_ellipsis, &nodes);
|
|
|
|
// count the total number of .'s
|
|
for (int i = 0; i < n; i++) {
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(nodes[i], MP_TOKEN_DEL_PERIOD)) {
|
|
import_level++;
|
|
} else {
|
|
// should be an MP_TOKEN_ELLIPSIS
|
|
import_level += 3;
|
|
}
|
|
}
|
|
} while (0);
|
|
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[1], MP_TOKEN_OP_STAR)) {
|
|
EMIT_ARG(load_const_small_int, import_level);
|
|
|
|
// build the "fromlist" tuple
|
|
EMIT_ARG(load_const_str, MP_QSTR__star_);
|
|
EMIT_ARG(build_tuple, 1);
|
|
|
|
// do the import
|
|
qstr dummy_q;
|
|
do_import_name(comp, pn_import_source, &dummy_q);
|
|
EMIT(import_star);
|
|
|
|
} else {
|
|
EMIT_ARG(load_const_small_int, import_level);
|
|
|
|
// build the "fromlist" tuple
|
|
mp_parse_node_t *pn_nodes;
|
|
int n = mp_parse_node_extract_list(&pns->nodes[1], PN_import_as_names, &pn_nodes);
|
|
for (int i = 0; i < n; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn_nodes[i], PN_import_as_name));
|
|
mp_parse_node_struct_t *pns3 = (mp_parse_node_struct_t*)pn_nodes[i];
|
|
qstr id2 = MP_PARSE_NODE_LEAF_ARG(pns3->nodes[0]); // should be id
|
|
EMIT_ARG(load_const_str, id2);
|
|
}
|
|
EMIT_ARG(build_tuple, n);
|
|
|
|
// do the import
|
|
qstr dummy_q;
|
|
do_import_name(comp, pn_import_source, &dummy_q);
|
|
for (int i = 0; i < n; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn_nodes[i], PN_import_as_name));
|
|
mp_parse_node_struct_t *pns3 = (mp_parse_node_struct_t*)pn_nodes[i];
|
|
qstr id2 = MP_PARSE_NODE_LEAF_ARG(pns3->nodes[0]); // should be id
|
|
EMIT_ARG(import_from, id2);
|
|
if (MP_PARSE_NODE_IS_NULL(pns3->nodes[1])) {
|
|
compile_store_id(comp, id2);
|
|
} else {
|
|
compile_store_id(comp, MP_PARSE_NODE_LEAF_ARG(pns3->nodes[1]));
|
|
}
|
|
}
|
|
EMIT(pop_top);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_declare_global(compiler_t *comp, mp_parse_node_t pn, qstr qst) {
|
|
bool added;
|
|
id_info_t *id_info = scope_find_or_add_id(comp->scope_cur, qst, &added);
|
|
if (!added) {
|
|
// TODO this is not compliant with CPython
|
|
compile_syntax_error(comp, pn, "identifier already used");
|
|
return;
|
|
}
|
|
id_info->kind = ID_INFO_KIND_GLOBAL_EXPLICIT;
|
|
|
|
// if the id exists in the global scope, set its kind to EXPLICIT_GLOBAL
|
|
id_info = scope_find_global(comp->scope_cur, qst);
|
|
if (id_info != NULL) {
|
|
id_info->kind = ID_INFO_KIND_GLOBAL_EXPLICIT;
|
|
}
|
|
}
|
|
|
|
STATIC void compile_global_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pns->nodes[0], PN_name_list, &nodes);
|
|
for (int i = 0; i < n; i++) {
|
|
compile_declare_global(comp, (mp_parse_node_t)pns, MP_PARSE_NODE_LEAF_ARG(nodes[i]));
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_declare_nonlocal(compiler_t *comp, mp_parse_node_t pn, qstr qst) {
|
|
bool added;
|
|
id_info_t *id_info = scope_find_or_add_id(comp->scope_cur, qst, &added);
|
|
if (!added) {
|
|
// TODO this is not compliant with CPython
|
|
compile_syntax_error(comp, pn, "identifier already used");
|
|
return;
|
|
}
|
|
id_info_t *id_info2 = scope_find_local_in_parent(comp->scope_cur, qst);
|
|
if (id_info2 == NULL || !(id_info2->kind == ID_INFO_KIND_LOCAL || id_info2->kind == ID_INFO_KIND_CELL || id_info2->kind == ID_INFO_KIND_FREE)) {
|
|
compile_syntax_error(comp, pn, "no binding for nonlocal found");
|
|
return;
|
|
}
|
|
id_info->kind = ID_INFO_KIND_FREE;
|
|
scope_close_over_in_parents(comp->scope_cur, qst);
|
|
}
|
|
|
|
STATIC void compile_nonlocal_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
if (comp->scope_cur->kind == SCOPE_MODULE) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "can't declare nonlocal in outer code");
|
|
return;
|
|
}
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pns->nodes[0], PN_name_list, &nodes);
|
|
for (int i = 0; i < n; i++) {
|
|
compile_declare_nonlocal(comp, (mp_parse_node_t)pns, MP_PARSE_NODE_LEAF_ARG(nodes[i]));
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_assert_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
uint l_end = comp_next_label(comp);
|
|
c_if_cond(comp, pns->nodes[0], true, l_end);
|
|
EMIT_LOAD_GLOBAL(MP_QSTR_AssertionError); // we load_global instead of load_id, to be consistent with CPython
|
|
if (!MP_PARSE_NODE_IS_NULL(pns->nodes[1])) {
|
|
// assertion message
|
|
compile_node(comp, pns->nodes[1]);
|
|
EMIT_ARG(call_function, 1, 0, 0);
|
|
}
|
|
EMIT_ARG(raise_varargs, 1);
|
|
EMIT_ARG(label_assign, l_end);
|
|
}
|
|
|
|
STATIC void compile_if_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// TODO proper and/or short circuiting
|
|
|
|
uint l_end = comp_next_label(comp);
|
|
|
|
// optimisation: don't emit anything when "if False"
|
|
if (!node_is_const_false(pns->nodes[0])) {
|
|
uint l_fail = comp_next_label(comp);
|
|
c_if_cond(comp, pns->nodes[0], false, l_fail); // if condition
|
|
|
|
compile_node(comp, pns->nodes[1]); // if block
|
|
|
|
// optimisation: skip everything else when "if True"
|
|
if (node_is_const_true(pns->nodes[0])) {
|
|
goto done;
|
|
}
|
|
|
|
if (
|
|
// optimisation: don't jump over non-existent elif/else blocks
|
|
!(MP_PARSE_NODE_IS_NULL(pns->nodes[2]) && MP_PARSE_NODE_IS_NULL(pns->nodes[3]))
|
|
// optimisation: don't jump if last instruction was return
|
|
&& !EMIT(last_emit_was_return_value)
|
|
) {
|
|
// jump over elif/else blocks
|
|
EMIT_ARG(jump, l_end);
|
|
}
|
|
|
|
EMIT_ARG(label_assign, l_fail);
|
|
}
|
|
|
|
// compile elif blocks (if any)
|
|
mp_parse_node_t *pn_elif;
|
|
int n_elif = mp_parse_node_extract_list(&pns->nodes[2], PN_if_stmt_elif_list, &pn_elif);
|
|
for (int i = 0; i < n_elif; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn_elif[i], PN_if_stmt_elif)); // should be
|
|
mp_parse_node_struct_t *pns_elif = (mp_parse_node_struct_t*)pn_elif[i];
|
|
|
|
// optimisation: don't emit anything when "if False"
|
|
if (!node_is_const_false(pns_elif->nodes[0])) {
|
|
uint l_fail = comp_next_label(comp);
|
|
c_if_cond(comp, pns_elif->nodes[0], false, l_fail); // elif condition
|
|
|
|
compile_node(comp, pns_elif->nodes[1]); // elif block
|
|
|
|
// optimisation: skip everything else when "elif True"
|
|
if (node_is_const_true(pns_elif->nodes[0])) {
|
|
goto done;
|
|
}
|
|
|
|
// optimisation: don't jump if last instruction was return
|
|
if (!EMIT(last_emit_was_return_value)) {
|
|
EMIT_ARG(jump, l_end);
|
|
}
|
|
EMIT_ARG(label_assign, l_fail);
|
|
}
|
|
}
|
|
|
|
// compile else block
|
|
compile_node(comp, pns->nodes[3]); // can be null
|
|
|
|
done:
|
|
EMIT_ARG(label_assign, l_end);
|
|
}
|
|
|
|
#define START_BREAK_CONTINUE_BLOCK \
|
|
uint16_t old_break_label = comp->break_label; \
|
|
uint16_t old_continue_label = comp->continue_label; \
|
|
uint16_t old_break_continue_except_level = comp->break_continue_except_level; \
|
|
uint break_label = comp_next_label(comp); \
|
|
uint continue_label = comp_next_label(comp); \
|
|
comp->break_label = break_label; \
|
|
comp->continue_label = continue_label; \
|
|
comp->break_continue_except_level = comp->cur_except_level;
|
|
|
|
#define END_BREAK_CONTINUE_BLOCK \
|
|
comp->break_label = old_break_label; \
|
|
comp->continue_label = old_continue_label; \
|
|
comp->break_continue_except_level = old_break_continue_except_level;
|
|
|
|
STATIC void compile_while_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
START_BREAK_CONTINUE_BLOCK
|
|
|
|
if (!node_is_const_false(pns->nodes[0])) { // optimisation: don't emit anything for "while False"
|
|
uint top_label = comp_next_label(comp);
|
|
if (!node_is_const_true(pns->nodes[0])) { // optimisation: don't jump to cond for "while True"
|
|
EMIT_ARG(jump, continue_label);
|
|
}
|
|
EMIT_ARG(label_assign, top_label);
|
|
compile_node(comp, pns->nodes[1]); // body
|
|
EMIT_ARG(label_assign, continue_label);
|
|
c_if_cond(comp, pns->nodes[0], true, top_label); // condition
|
|
}
|
|
|
|
// break/continue apply to outer loop (if any) in the else block
|
|
END_BREAK_CONTINUE_BLOCK
|
|
|
|
compile_node(comp, pns->nodes[2]); // else
|
|
|
|
EMIT_ARG(label_assign, break_label);
|
|
}
|
|
|
|
// This function compiles an optimised for-loop of the form:
|
|
// for <var> in range(<start>, <end>, <step>):
|
|
// <body>
|
|
// else:
|
|
// <else>
|
|
// <var> must be an identifier and <step> must be a small-int.
|
|
//
|
|
// Semantics of for-loop require:
|
|
// - final failing value should not be stored in the loop variable
|
|
// - if the loop never runs, the loop variable should never be assigned
|
|
// - assignments to <var>, <end> or <step> in the body do not alter the loop
|
|
// (<step> is a constant for us, so no need to worry about it changing)
|
|
//
|
|
// If <end> is a small-int, then the stack during the for-loop contains just
|
|
// the current value of <var>. Otherwise, the stack contains <end> then the
|
|
// current value of <var>.
|
|
STATIC void compile_for_stmt_optimised_range(compiler_t *comp, mp_parse_node_t pn_var, mp_parse_node_t pn_start, mp_parse_node_t pn_end, mp_parse_node_t pn_step, mp_parse_node_t pn_body, mp_parse_node_t pn_else) {
|
|
START_BREAK_CONTINUE_BLOCK
|
|
|
|
uint top_label = comp_next_label(comp);
|
|
uint entry_label = comp_next_label(comp);
|
|
|
|
// put the end value on the stack if it's not a small-int constant
|
|
bool end_on_stack = !MP_PARSE_NODE_IS_SMALL_INT(pn_end);
|
|
if (end_on_stack) {
|
|
compile_node(comp, pn_end);
|
|
}
|
|
|
|
// compile: start
|
|
compile_node(comp, pn_start);
|
|
|
|
EMIT_ARG(jump, entry_label);
|
|
EMIT_ARG(label_assign, top_label);
|
|
|
|
// duplicate next value and store it to var
|
|
EMIT(dup_top);
|
|
c_assign(comp, pn_var, ASSIGN_STORE);
|
|
|
|
// compile body
|
|
compile_node(comp, pn_body);
|
|
|
|
EMIT_ARG(label_assign, continue_label);
|
|
|
|
// compile: var + step
|
|
compile_node(comp, pn_step);
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_INPLACE_ADD);
|
|
|
|
EMIT_ARG(label_assign, entry_label);
|
|
|
|
// compile: if var <cond> end: goto top
|
|
if (end_on_stack) {
|
|
EMIT(dup_top_two);
|
|
EMIT(rot_two);
|
|
} else {
|
|
EMIT(dup_top);
|
|
compile_node(comp, pn_end);
|
|
}
|
|
assert(MP_PARSE_NODE_IS_SMALL_INT(pn_step));
|
|
if (MP_PARSE_NODE_LEAF_SMALL_INT(pn_step) >= 0) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_LESS);
|
|
} else {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_MORE);
|
|
}
|
|
EMIT_ARG(pop_jump_if, true, top_label);
|
|
|
|
// break/continue apply to outer loop (if any) in the else block
|
|
END_BREAK_CONTINUE_BLOCK
|
|
|
|
compile_node(comp, pn_else);
|
|
|
|
EMIT_ARG(label_assign, break_label);
|
|
|
|
// discard final value of var that failed the loop condition
|
|
EMIT(pop_top);
|
|
|
|
// discard <end> value if it's on the stack
|
|
if (end_on_stack) {
|
|
EMIT(pop_top);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_for_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// this bit optimises: for <x> in range(...), turning it into an explicitly incremented variable
|
|
// this is actually slower, but uses no heap memory
|
|
// for viper it will be much, much faster
|
|
if (/*comp->scope_cur->emit_options == MP_EMIT_OPT_VIPER &&*/ MP_PARSE_NODE_IS_ID(pns->nodes[0]) && MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_power)) {
|
|
mp_parse_node_struct_t *pns_it = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_IS_ID(pns_it->nodes[0])
|
|
&& MP_PARSE_NODE_LEAF_ARG(pns_it->nodes[0]) == MP_QSTR_range
|
|
&& MP_PARSE_NODE_IS_STRUCT_KIND(pns_it->nodes[1], PN_trailer_paren)
|
|
&& MP_PARSE_NODE_IS_NULL(pns_it->nodes[2])) {
|
|
mp_parse_node_t pn_range_args = ((mp_parse_node_struct_t*)pns_it->nodes[1])->nodes[0];
|
|
mp_parse_node_t *args;
|
|
int n_args = mp_parse_node_extract_list(&pn_range_args, PN_arglist, &args);
|
|
mp_parse_node_t pn_range_start;
|
|
mp_parse_node_t pn_range_end;
|
|
mp_parse_node_t pn_range_step;
|
|
bool optimize = false;
|
|
if (1 <= n_args && n_args <= 3) {
|
|
optimize = true;
|
|
if (n_args == 1) {
|
|
pn_range_start = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, 0);
|
|
pn_range_end = args[0];
|
|
pn_range_step = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, 1);
|
|
} else if (n_args == 2) {
|
|
pn_range_start = args[0];
|
|
pn_range_end = args[1];
|
|
pn_range_step = mp_parse_node_new_leaf(MP_PARSE_NODE_SMALL_INT, 1);
|
|
} else {
|
|
pn_range_start = args[0];
|
|
pn_range_end = args[1];
|
|
pn_range_step = args[2];
|
|
// We need to know sign of step. This is possible only if it's constant
|
|
if (!MP_PARSE_NODE_IS_SMALL_INT(pn_range_step)) {
|
|
optimize = false;
|
|
}
|
|
}
|
|
}
|
|
if (optimize) {
|
|
compile_for_stmt_optimised_range(comp, pns->nodes[0], pn_range_start, pn_range_end, pn_range_step, pns->nodes[2], pns->nodes[3]);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
START_BREAK_CONTINUE_BLOCK
|
|
comp->break_label |= MP_EMIT_BREAK_FROM_FOR;
|
|
|
|
uint pop_label = comp_next_label(comp);
|
|
uint end_label = comp_next_label(comp);
|
|
|
|
compile_node(comp, pns->nodes[1]); // iterator
|
|
EMIT(get_iter);
|
|
EMIT_ARG(label_assign, continue_label);
|
|
EMIT_ARG(for_iter, pop_label);
|
|
c_assign(comp, pns->nodes[0], ASSIGN_STORE); // variable
|
|
compile_node(comp, pns->nodes[2]); // body
|
|
if (!EMIT(last_emit_was_return_value)) {
|
|
EMIT_ARG(jump, continue_label);
|
|
}
|
|
EMIT_ARG(label_assign, pop_label);
|
|
EMIT(for_iter_end);
|
|
|
|
// break/continue apply to outer loop (if any) in the else block
|
|
END_BREAK_CONTINUE_BLOCK
|
|
|
|
compile_node(comp, pns->nodes[3]); // else (not tested)
|
|
|
|
EMIT_ARG(label_assign, break_label);
|
|
EMIT_ARG(label_assign, end_label);
|
|
}
|
|
|
|
STATIC void compile_try_except(compiler_t *comp, mp_parse_node_t pn_body, int n_except, mp_parse_node_t *pn_excepts, mp_parse_node_t pn_else) {
|
|
// setup code
|
|
uint l1 = comp_next_label(comp);
|
|
uint success_label = comp_next_label(comp);
|
|
|
|
EMIT_ARG(setup_except, l1);
|
|
compile_increase_except_level(comp);
|
|
|
|
compile_node(comp, pn_body); // body
|
|
EMIT(pop_block);
|
|
EMIT_ARG(jump, success_label); // jump over exception handler
|
|
|
|
EMIT_ARG(label_assign, l1); // start of exception handler
|
|
EMIT(start_except_handler);
|
|
|
|
uint l2 = comp_next_label(comp);
|
|
|
|
for (int i = 0; i < n_except; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn_excepts[i], PN_try_stmt_except)); // should be
|
|
mp_parse_node_struct_t *pns_except = (mp_parse_node_struct_t*)pn_excepts[i];
|
|
|
|
qstr qstr_exception_local = 0;
|
|
uint end_finally_label = comp_next_label(comp);
|
|
|
|
if (MP_PARSE_NODE_IS_NULL(pns_except->nodes[0])) {
|
|
// this is a catch all exception handler
|
|
if (i + 1 != n_except) {
|
|
compile_syntax_error(comp, pn_excepts[i], "default 'except:' must be last");
|
|
compile_decrease_except_level(comp);
|
|
return;
|
|
}
|
|
} else {
|
|
// this exception handler requires a match to a certain type of exception
|
|
mp_parse_node_t pns_exception_expr = pns_except->nodes[0];
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns_exception_expr)) {
|
|
mp_parse_node_struct_t *pns3 = (mp_parse_node_struct_t*)pns_exception_expr;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns3) == PN_try_stmt_as_name) {
|
|
// handler binds the exception to a local
|
|
pns_exception_expr = pns3->nodes[0];
|
|
qstr_exception_local = MP_PARSE_NODE_LEAF_ARG(pns3->nodes[1]);
|
|
}
|
|
}
|
|
EMIT(dup_top);
|
|
compile_node(comp, pns_exception_expr);
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_EXCEPTION_MATCH);
|
|
EMIT_ARG(pop_jump_if, false, end_finally_label);
|
|
}
|
|
|
|
EMIT(pop_top);
|
|
|
|
if (qstr_exception_local == 0) {
|
|
EMIT(pop_top);
|
|
} else {
|
|
compile_store_id(comp, qstr_exception_local);
|
|
}
|
|
|
|
EMIT(pop_top);
|
|
|
|
uint l3 = 0;
|
|
if (qstr_exception_local != 0) {
|
|
l3 = comp_next_label(comp);
|
|
EMIT_ARG(setup_finally, l3);
|
|
compile_increase_except_level(comp);
|
|
}
|
|
compile_node(comp, pns_except->nodes[1]);
|
|
if (qstr_exception_local != 0) {
|
|
EMIT(pop_block);
|
|
}
|
|
EMIT(pop_except);
|
|
if (qstr_exception_local != 0) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT_ARG(label_assign, l3);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
compile_store_id(comp, qstr_exception_local);
|
|
compile_delete_id(comp, qstr_exception_local);
|
|
|
|
compile_decrease_except_level(comp);
|
|
EMIT(end_finally);
|
|
}
|
|
EMIT_ARG(jump, l2);
|
|
EMIT_ARG(label_assign, end_finally_label);
|
|
EMIT_ARG(adjust_stack_size, 3); // stack adjust for the 3 exception items
|
|
}
|
|
|
|
compile_decrease_except_level(comp);
|
|
EMIT(end_finally);
|
|
EMIT(end_except_handler);
|
|
|
|
EMIT_ARG(label_assign, success_label);
|
|
compile_node(comp, pn_else); // else block, can be null
|
|
EMIT_ARG(label_assign, l2);
|
|
}
|
|
|
|
STATIC void compile_try_finally(compiler_t *comp, mp_parse_node_t pn_body, int n_except, mp_parse_node_t *pn_except, mp_parse_node_t pn_else, mp_parse_node_t pn_finally) {
|
|
uint l_finally_block = comp_next_label(comp);
|
|
|
|
EMIT_ARG(setup_finally, l_finally_block);
|
|
compile_increase_except_level(comp);
|
|
|
|
if (n_except == 0) {
|
|
assert(MP_PARSE_NODE_IS_NULL(pn_else));
|
|
EMIT_ARG(adjust_stack_size, 3); // stack adjust for possible UNWIND_JUMP state
|
|
compile_node(comp, pn_body);
|
|
EMIT_ARG(adjust_stack_size, -3);
|
|
} else {
|
|
compile_try_except(comp, pn_body, n_except, pn_except, pn_else);
|
|
}
|
|
EMIT(pop_block);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT_ARG(label_assign, l_finally_block);
|
|
compile_node(comp, pn_finally);
|
|
|
|
compile_decrease_except_level(comp);
|
|
EMIT(end_finally);
|
|
}
|
|
|
|
STATIC void compile_try_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])); // should be
|
|
{
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_try_stmt_finally) {
|
|
// just try-finally
|
|
compile_try_finally(comp, pns->nodes[0], 0, NULL, MP_PARSE_NODE_NULL, pns2->nodes[0]);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_try_stmt_except_and_more) {
|
|
// try-except and possibly else and/or finally
|
|
mp_parse_node_t *pn_excepts;
|
|
int n_except = mp_parse_node_extract_list(&pns2->nodes[0], PN_try_stmt_except_list, &pn_excepts);
|
|
if (MP_PARSE_NODE_IS_NULL(pns2->nodes[2])) {
|
|
// no finally
|
|
compile_try_except(comp, pns->nodes[0], n_except, pn_excepts, pns2->nodes[1]);
|
|
} else {
|
|
// have finally
|
|
compile_try_finally(comp, pns->nodes[0], n_except, pn_excepts, pns2->nodes[1], ((mp_parse_node_struct_t*)pns2->nodes[2])->nodes[0]);
|
|
}
|
|
} else {
|
|
// just try-except
|
|
mp_parse_node_t *pn_excepts;
|
|
int n_except = mp_parse_node_extract_list(&pns->nodes[1], PN_try_stmt_except_list, &pn_excepts);
|
|
compile_try_except(comp, pns->nodes[0], n_except, pn_excepts, MP_PARSE_NODE_NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_with_stmt_helper(compiler_t *comp, int n, mp_parse_node_t *nodes, mp_parse_node_t body) {
|
|
if (n == 0) {
|
|
// no more pre-bits, compile the body of the with
|
|
compile_node(comp, body);
|
|
} else {
|
|
uint l_end = comp_next_label(comp);
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(nodes[0], PN_with_item)) {
|
|
// this pre-bit is of the form "a as b"
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)nodes[0];
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(setup_with, l_end);
|
|
c_assign(comp, pns->nodes[1], ASSIGN_STORE);
|
|
} else {
|
|
// this pre-bit is just an expression
|
|
compile_node(comp, nodes[0]);
|
|
EMIT_ARG(setup_with, l_end);
|
|
EMIT(pop_top);
|
|
}
|
|
compile_increase_except_level(comp);
|
|
// compile additional pre-bits and the body
|
|
compile_with_stmt_helper(comp, n - 1, nodes + 1, body);
|
|
// finish this with block
|
|
EMIT(pop_block);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT_ARG(label_assign, l_end);
|
|
EMIT(with_cleanup);
|
|
compile_decrease_except_level(comp);
|
|
EMIT(end_finally);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_with_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// get the nodes for the pre-bit of the with (the a as b, c as d, ... bit)
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pns->nodes[0], PN_with_stmt_list, &nodes);
|
|
assert(n > 0);
|
|
|
|
// compile in a nested fashion
|
|
compile_with_stmt_helper(comp, n, nodes, pns->nodes[1]);
|
|
}
|
|
|
|
STATIC void compile_expr_stmt(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[1])) {
|
|
if (comp->is_repl && comp->scope_cur->kind == SCOPE_MODULE) {
|
|
// for REPL, evaluate then print the expression
|
|
compile_load_id(comp, MP_QSTR___repl_print__);
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(call_function, 1, 0, 0);
|
|
EMIT(pop_top);
|
|
|
|
} else {
|
|
// for non-REPL, evaluate then discard the expression
|
|
if ((MP_PARSE_NODE_IS_LEAF(pns->nodes[0]) && !MP_PARSE_NODE_IS_ID(pns->nodes[0]))
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_string)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_bytes)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_const_object)) {
|
|
// do nothing with a lonely constant
|
|
} else {
|
|
compile_node(comp, pns->nodes[0]); // just an expression
|
|
EMIT(pop_top); // discard last result since this is a statement and leaves nothing on the stack
|
|
}
|
|
}
|
|
} else {
|
|
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
int kind = MP_PARSE_NODE_STRUCT_KIND(pns1);
|
|
if (kind == PN_expr_stmt_augassign) {
|
|
c_assign(comp, pns->nodes[0], ASSIGN_AUG_LOAD); // lhs load for aug assign
|
|
compile_node(comp, pns1->nodes[1]); // rhs
|
|
assert(MP_PARSE_NODE_IS_TOKEN(pns1->nodes[0]));
|
|
mp_binary_op_t op;
|
|
switch (MP_PARSE_NODE_LEAF_ARG(pns1->nodes[0])) {
|
|
case MP_TOKEN_DEL_PIPE_EQUAL: op = MP_BINARY_OP_INPLACE_OR; break;
|
|
case MP_TOKEN_DEL_CARET_EQUAL: op = MP_BINARY_OP_INPLACE_XOR; break;
|
|
case MP_TOKEN_DEL_AMPERSAND_EQUAL: op = MP_BINARY_OP_INPLACE_AND; break;
|
|
case MP_TOKEN_DEL_DBL_LESS_EQUAL: op = MP_BINARY_OP_INPLACE_LSHIFT; break;
|
|
case MP_TOKEN_DEL_DBL_MORE_EQUAL: op = MP_BINARY_OP_INPLACE_RSHIFT; break;
|
|
case MP_TOKEN_DEL_PLUS_EQUAL: op = MP_BINARY_OP_INPLACE_ADD; break;
|
|
case MP_TOKEN_DEL_MINUS_EQUAL: op = MP_BINARY_OP_INPLACE_SUBTRACT; break;
|
|
case MP_TOKEN_DEL_STAR_EQUAL: op = MP_BINARY_OP_INPLACE_MULTIPLY; break;
|
|
case MP_TOKEN_DEL_DBL_SLASH_EQUAL: op = MP_BINARY_OP_INPLACE_FLOOR_DIVIDE; break;
|
|
case MP_TOKEN_DEL_SLASH_EQUAL: op = MP_BINARY_OP_INPLACE_TRUE_DIVIDE; break;
|
|
case MP_TOKEN_DEL_PERCENT_EQUAL: op = MP_BINARY_OP_INPLACE_MODULO; break;
|
|
case MP_TOKEN_DEL_DBL_STAR_EQUAL: default: op = MP_BINARY_OP_INPLACE_POWER; break;
|
|
}
|
|
EMIT_ARG(binary_op, op);
|
|
c_assign(comp, pns->nodes[0], ASSIGN_AUG_STORE); // lhs store for aug assign
|
|
} else if (kind == PN_expr_stmt_assign_list) {
|
|
int rhs = MP_PARSE_NODE_STRUCT_NUM_NODES(pns1) - 1;
|
|
compile_node(comp, ((mp_parse_node_struct_t*)pns1->nodes[rhs])->nodes[0]); // rhs
|
|
// following CPython, we store left-most first
|
|
if (rhs > 0) {
|
|
EMIT(dup_top);
|
|
}
|
|
c_assign(comp, pns->nodes[0], ASSIGN_STORE); // lhs store
|
|
for (int i = 0; i < rhs; i++) {
|
|
if (i + 1 < rhs) {
|
|
EMIT(dup_top);
|
|
}
|
|
c_assign(comp, ((mp_parse_node_struct_t*)pns1->nodes[i])->nodes[0], ASSIGN_STORE); // middle store
|
|
}
|
|
} else {
|
|
assert(kind == PN_expr_stmt_assign); // should be
|
|
if (MICROPY_COMP_DOUBLE_TUPLE_ASSIGN
|
|
&& MP_PARSE_NODE_IS_STRUCT_KIND(pns1->nodes[0], PN_testlist_star_expr)
|
|
&& MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_star_expr)
|
|
&& MP_PARSE_NODE_STRUCT_NUM_NODES((mp_parse_node_struct_t*)pns1->nodes[0]) == 2
|
|
&& MP_PARSE_NODE_STRUCT_NUM_NODES((mp_parse_node_struct_t*)pns->nodes[0]) == 2) {
|
|
// optimisation for a, b = c, d
|
|
mp_parse_node_struct_t *pns10 = (mp_parse_node_struct_t*)pns1->nodes[0];
|
|
mp_parse_node_struct_t *pns0 = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pns0->nodes[0], PN_star_expr)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns0->nodes[1], PN_star_expr)) {
|
|
// can't optimise when it's a star expression on the lhs
|
|
goto no_optimisation;
|
|
}
|
|
compile_node(comp, pns10->nodes[0]); // rhs
|
|
compile_node(comp, pns10->nodes[1]); // rhs
|
|
EMIT(rot_two);
|
|
c_assign(comp, pns0->nodes[0], ASSIGN_STORE); // lhs store
|
|
c_assign(comp, pns0->nodes[1], ASSIGN_STORE); // lhs store
|
|
} else if (MICROPY_COMP_TRIPLE_TUPLE_ASSIGN
|
|
&& MP_PARSE_NODE_IS_STRUCT_KIND(pns1->nodes[0], PN_testlist_star_expr)
|
|
&& MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_star_expr)
|
|
&& MP_PARSE_NODE_STRUCT_NUM_NODES((mp_parse_node_struct_t*)pns1->nodes[0]) == 3
|
|
&& MP_PARSE_NODE_STRUCT_NUM_NODES((mp_parse_node_struct_t*)pns->nodes[0]) == 3) {
|
|
// optimisation for a, b, c = d, e, f
|
|
mp_parse_node_struct_t *pns10 = (mp_parse_node_struct_t*)pns1->nodes[0];
|
|
mp_parse_node_struct_t *pns0 = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pns0->nodes[0], PN_star_expr)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns0->nodes[1], PN_star_expr)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns0->nodes[2], PN_star_expr)) {
|
|
// can't optimise when it's a star expression on the lhs
|
|
goto no_optimisation;
|
|
}
|
|
compile_node(comp, pns10->nodes[0]); // rhs
|
|
compile_node(comp, pns10->nodes[1]); // rhs
|
|
compile_node(comp, pns10->nodes[2]); // rhs
|
|
EMIT(rot_three);
|
|
EMIT(rot_two);
|
|
c_assign(comp, pns0->nodes[0], ASSIGN_STORE); // lhs store
|
|
c_assign(comp, pns0->nodes[1], ASSIGN_STORE); // lhs store
|
|
c_assign(comp, pns0->nodes[2], ASSIGN_STORE); // lhs store
|
|
} else {
|
|
no_optimisation:
|
|
compile_node(comp, pns1->nodes[0]); // rhs
|
|
c_assign(comp, pns->nodes[0], ASSIGN_STORE); // lhs store
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void c_binary_op(compiler_t *comp, mp_parse_node_struct_t *pns, mp_binary_op_t binary_op) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
compile_node(comp, pns->nodes[0]);
|
|
for (int i = 1; i < num_nodes; i += 1) {
|
|
compile_node(comp, pns->nodes[i]);
|
|
EMIT_ARG(binary_op, binary_op);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_test_if_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_test_if_else));
|
|
mp_parse_node_struct_t *pns_test_if_else = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
|
|
uint l_fail = comp_next_label(comp);
|
|
uint l_end = comp_next_label(comp);
|
|
c_if_cond(comp, pns_test_if_else->nodes[0], false, l_fail); // condition
|
|
compile_node(comp, pns->nodes[0]); // success value
|
|
EMIT_ARG(jump, l_end);
|
|
EMIT_ARG(label_assign, l_fail);
|
|
EMIT_ARG(adjust_stack_size, -1); // adjust stack size
|
|
compile_node(comp, pns_test_if_else->nodes[1]); // failure value
|
|
EMIT_ARG(label_assign, l_end);
|
|
}
|
|
|
|
STATIC void compile_lambdef(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// TODO default params etc for lambda; possibly just use funcdef code
|
|
//mp_parse_node_t pn_params = pns->nodes[0];
|
|
//mp_parse_node_t pn_body = pns->nodes[1];
|
|
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
// create a new scope for this lambda
|
|
scope_t *s = scope_new_and_link(comp, SCOPE_LAMBDA, (mp_parse_node_t)pns, comp->scope_cur->emit_options);
|
|
// store the lambda scope so the compiling function (this one) can use it at each pass
|
|
pns->nodes[2] = (mp_parse_node_t)s;
|
|
}
|
|
|
|
// get the scope for this lambda
|
|
scope_t *this_scope = (scope_t*)pns->nodes[2];
|
|
|
|
// make the lambda
|
|
close_over_variables_etc(comp, this_scope, 0, 0);
|
|
}
|
|
|
|
STATIC void compile_or_and_test(compiler_t *comp, mp_parse_node_struct_t *pns, bool cond) {
|
|
uint l_end = comp_next_label(comp);
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
for (int i = 0; i < n; i += 1) {
|
|
compile_node(comp, pns->nodes[i]);
|
|
if (i + 1 < n) {
|
|
EMIT_ARG(jump_if_or_pop, cond, l_end);
|
|
}
|
|
}
|
|
EMIT_ARG(label_assign, l_end);
|
|
}
|
|
|
|
STATIC void compile_or_test(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_or_and_test(comp, pns, true);
|
|
}
|
|
|
|
STATIC void compile_and_test(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_or_and_test(comp, pns, false);
|
|
}
|
|
|
|
STATIC void compile_not_test_2(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(unary_op, MP_UNARY_OP_NOT);
|
|
}
|
|
|
|
STATIC void compile_comparison(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
compile_node(comp, pns->nodes[0]);
|
|
bool multi = (num_nodes > 3);
|
|
uint l_fail = 0;
|
|
if (multi) {
|
|
l_fail = comp_next_label(comp);
|
|
}
|
|
for (int i = 1; i + 1 < num_nodes; i += 2) {
|
|
compile_node(comp, pns->nodes[i + 1]);
|
|
if (i + 2 < num_nodes) {
|
|
EMIT(dup_top);
|
|
EMIT(rot_three);
|
|
}
|
|
if (MP_PARSE_NODE_IS_TOKEN(pns->nodes[i])) {
|
|
mp_binary_op_t op;
|
|
switch (MP_PARSE_NODE_LEAF_ARG(pns->nodes[i])) {
|
|
case MP_TOKEN_OP_LESS: op = MP_BINARY_OP_LESS; break;
|
|
case MP_TOKEN_OP_MORE: op = MP_BINARY_OP_MORE; break;
|
|
case MP_TOKEN_OP_DBL_EQUAL: op = MP_BINARY_OP_EQUAL; break;
|
|
case MP_TOKEN_OP_LESS_EQUAL: op = MP_BINARY_OP_LESS_EQUAL; break;
|
|
case MP_TOKEN_OP_MORE_EQUAL: op = MP_BINARY_OP_MORE_EQUAL; break;
|
|
case MP_TOKEN_OP_NOT_EQUAL: op = MP_BINARY_OP_NOT_EQUAL; break;
|
|
case MP_TOKEN_KW_IN: default: op = MP_BINARY_OP_IN; break;
|
|
}
|
|
EMIT_ARG(binary_op, op);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[i])); // should be
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[i];
|
|
int kind = MP_PARSE_NODE_STRUCT_KIND(pns2);
|
|
if (kind == PN_comp_op_not_in) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_NOT_IN);
|
|
} else {
|
|
assert(kind == PN_comp_op_is); // should be
|
|
if (MP_PARSE_NODE_IS_NULL(pns2->nodes[0])) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_IS);
|
|
} else {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_IS_NOT);
|
|
}
|
|
}
|
|
}
|
|
if (i + 2 < num_nodes) {
|
|
EMIT_ARG(jump_if_or_pop, false, l_fail);
|
|
}
|
|
}
|
|
if (multi) {
|
|
uint l_end = comp_next_label(comp);
|
|
EMIT_ARG(jump, l_end);
|
|
EMIT_ARG(label_assign, l_fail);
|
|
EMIT_ARG(adjust_stack_size, 1);
|
|
EMIT(rot_two);
|
|
EMIT(pop_top);
|
|
EMIT_ARG(label_assign, l_end);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_star_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "*x must be assignment target");
|
|
}
|
|
|
|
STATIC void compile_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
c_binary_op(comp, pns, MP_BINARY_OP_OR);
|
|
}
|
|
|
|
STATIC void compile_xor_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
c_binary_op(comp, pns, MP_BINARY_OP_XOR);
|
|
}
|
|
|
|
STATIC void compile_and_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
c_binary_op(comp, pns, MP_BINARY_OP_AND);
|
|
}
|
|
|
|
STATIC void compile_shift_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
compile_node(comp, pns->nodes[0]);
|
|
for (int i = 1; i + 1 < num_nodes; i += 2) {
|
|
compile_node(comp, pns->nodes[i + 1]);
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_DBL_LESS)) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_LSHIFT);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_DBL_MORE)); // should be
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_RSHIFT);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_arith_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
compile_node(comp, pns->nodes[0]);
|
|
for (int i = 1; i + 1 < num_nodes; i += 2) {
|
|
compile_node(comp, pns->nodes[i + 1]);
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_PLUS)) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_ADD);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_MINUS)); // should be
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_SUBTRACT);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_term(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
compile_node(comp, pns->nodes[0]);
|
|
for (int i = 1; i + 1 < num_nodes; i += 2) {
|
|
compile_node(comp, pns->nodes[i + 1]);
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_STAR)) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_MULTIPLY);
|
|
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_DBL_SLASH)) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_FLOOR_DIVIDE);
|
|
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_SLASH)) {
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_TRUE_DIVIDE);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[i], MP_TOKEN_OP_PERCENT)); // should be
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_MODULO);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_factor_2(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_node(comp, pns->nodes[1]);
|
|
if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_PLUS)) {
|
|
EMIT_ARG(unary_op, MP_UNARY_OP_POSITIVE);
|
|
} else if (MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_MINUS)) {
|
|
EMIT_ARG(unary_op, MP_UNARY_OP_NEGATIVE);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_TOKEN_KIND(pns->nodes[0], MP_TOKEN_OP_TILDE)); // should be
|
|
EMIT_ARG(unary_op, MP_UNARY_OP_INVERT);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_power(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// this is to handle special super() call
|
|
comp->func_arg_is_super = MP_PARSE_NODE_IS_ID(pns->nodes[0]) && MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]) == MP_QSTR_super;
|
|
|
|
compile_generic_all_nodes(comp, pns);
|
|
}
|
|
|
|
STATIC void compile_trailer_paren_helper(compiler_t *comp, mp_parse_node_t pn_arglist, bool is_method_call, int n_positional_extra) {
|
|
// function to call is on top of stack
|
|
|
|
// this is to handle special super() call
|
|
if (MP_PARSE_NODE_IS_NULL(pn_arglist) && comp->func_arg_is_super && comp->scope_cur->kind == SCOPE_FUNCTION) {
|
|
compile_load_id(comp, MP_QSTR___class__);
|
|
// look for first argument to function (assumes it's "self")
|
|
for (int i = 0; i < comp->scope_cur->id_info_len; i++) {
|
|
if (comp->scope_cur->id_info[i].flags & ID_FLAG_IS_PARAM) {
|
|
// first argument found; load it and call super
|
|
EMIT_LOAD_FAST(MP_QSTR_, comp->scope_cur->id_info[i].local_num);
|
|
EMIT_ARG(call_function, 2, 0, 0);
|
|
return;
|
|
}
|
|
}
|
|
compile_syntax_error(comp, MP_PARSE_NODE_NULL, "super() call cannot find self"); // really a TypeError
|
|
return;
|
|
}
|
|
|
|
// get the list of arguments
|
|
mp_parse_node_t *args;
|
|
int n_args = mp_parse_node_extract_list(&pn_arglist, PN_arglist, &args);
|
|
|
|
// compile the arguments
|
|
// Rather than calling compile_node on the list, we go through the list of args
|
|
// explicitly here so that we can count the number of arguments and give sensible
|
|
// error messages.
|
|
int n_positional = n_positional_extra;
|
|
uint n_keyword = 0;
|
|
uint star_flags = 0;
|
|
for (int i = 0; i < n_args; i++) {
|
|
if (MP_PARSE_NODE_IS_STRUCT(args[i])) {
|
|
mp_parse_node_struct_t *pns_arg = (mp_parse_node_struct_t*)args[i];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns_arg) == PN_arglist_star) {
|
|
if (star_flags & MP_EMIT_STAR_FLAG_SINGLE) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns_arg, "can't have multiple *x");
|
|
return;
|
|
}
|
|
star_flags |= MP_EMIT_STAR_FLAG_SINGLE;
|
|
compile_node(comp, pns_arg->nodes[0]);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns_arg) == PN_arglist_dbl_star) {
|
|
if (star_flags & MP_EMIT_STAR_FLAG_DOUBLE) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns_arg, "can't have multiple **x");
|
|
return;
|
|
}
|
|
star_flags |= MP_EMIT_STAR_FLAG_DOUBLE;
|
|
compile_node(comp, pns_arg->nodes[0]);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns_arg) == PN_argument) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns_arg->nodes[1])); // should always be
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns_arg->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_argument_3) {
|
|
if (!MP_PARSE_NODE_IS_ID(pns_arg->nodes[0])) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns_arg, "LHS of keyword arg must be an id");
|
|
return;
|
|
}
|
|
EMIT_ARG(load_const_str, MP_PARSE_NODE_LEAF_ARG(pns_arg->nodes[0]));
|
|
compile_node(comp, pns2->nodes[0]);
|
|
n_keyword += 1;
|
|
} else {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_comp_for); // should always be
|
|
compile_comprehension(comp, pns_arg, SCOPE_GEN_EXPR);
|
|
n_positional++;
|
|
}
|
|
} else {
|
|
goto normal_argument;
|
|
}
|
|
} else {
|
|
normal_argument:
|
|
if (n_keyword > 0) {
|
|
compile_syntax_error(comp, args[i], "non-keyword arg after keyword arg");
|
|
return;
|
|
}
|
|
compile_node(comp, args[i]);
|
|
n_positional++;
|
|
}
|
|
}
|
|
|
|
// emit the function/method call
|
|
if (is_method_call) {
|
|
EMIT_ARG(call_method, n_positional, n_keyword, star_flags);
|
|
} else {
|
|
EMIT_ARG(call_function, n_positional, n_keyword, star_flags);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_power_trailers(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
for (int i = 0; i < num_nodes; i++) {
|
|
if (i + 1 < num_nodes && MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[i], PN_trailer_period) && MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[i + 1], PN_trailer_paren)) {
|
|
// optimisation for method calls a.f(...), following PyPy
|
|
mp_parse_node_struct_t *pns_period = (mp_parse_node_struct_t*)pns->nodes[i];
|
|
mp_parse_node_struct_t *pns_paren = (mp_parse_node_struct_t*)pns->nodes[i + 1];
|
|
EMIT_ARG(load_method, MP_PARSE_NODE_LEAF_ARG(pns_period->nodes[0])); // get the method
|
|
compile_trailer_paren_helper(comp, pns_paren->nodes[0], true, 0);
|
|
i += 1;
|
|
} else {
|
|
compile_node(comp, pns->nodes[i]);
|
|
}
|
|
comp->func_arg_is_super = false;
|
|
}
|
|
}
|
|
|
|
STATIC void compile_power_dbl_star(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(binary_op, MP_BINARY_OP_POWER);
|
|
}
|
|
|
|
STATIC void compile_atom_string(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// a list of strings
|
|
|
|
// check type of list (string or bytes) and count total number of bytes
|
|
int n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
int n_bytes = 0;
|
|
int string_kind = MP_PARSE_NODE_NULL;
|
|
for (int i = 0; i < n; i++) {
|
|
int pn_kind;
|
|
if (MP_PARSE_NODE_IS_LEAF(pns->nodes[i])) {
|
|
pn_kind = MP_PARSE_NODE_LEAF_KIND(pns->nodes[i]);
|
|
assert(pn_kind == MP_PARSE_NODE_STRING || pn_kind == MP_PARSE_NODE_BYTES);
|
|
n_bytes += qstr_len(MP_PARSE_NODE_LEAF_ARG(pns->nodes[i]));
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[i]));
|
|
mp_parse_node_struct_t *pns_string = (mp_parse_node_struct_t*)pns->nodes[i];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns_string) == PN_string) {
|
|
pn_kind = MP_PARSE_NODE_STRING;
|
|
} else {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns_string) == PN_bytes);
|
|
pn_kind = MP_PARSE_NODE_BYTES;
|
|
}
|
|
n_bytes += (mp_uint_t)pns_string->nodes[1];
|
|
}
|
|
if (i == 0) {
|
|
string_kind = pn_kind;
|
|
} else if (pn_kind != string_kind) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "cannot mix bytes and nonbytes literals");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// if we are not in the last pass, just load a dummy object
|
|
if (comp->pass != MP_PASS_EMIT) {
|
|
EMIT_ARG(load_const_obj, mp_const_none);
|
|
return;
|
|
}
|
|
|
|
// concatenate string/bytes
|
|
vstr_t vstr;
|
|
vstr_init_len(&vstr, n_bytes);
|
|
byte *s_dest = (byte*)vstr.buf;
|
|
for (int i = 0; i < n; i++) {
|
|
if (MP_PARSE_NODE_IS_LEAF(pns->nodes[i])) {
|
|
mp_uint_t s_len;
|
|
const byte *s = qstr_data(MP_PARSE_NODE_LEAF_ARG(pns->nodes[i]), &s_len);
|
|
memcpy(s_dest, s, s_len);
|
|
s_dest += s_len;
|
|
} else {
|
|
mp_parse_node_struct_t *pns_string = (mp_parse_node_struct_t*)pns->nodes[i];
|
|
memcpy(s_dest, (const char*)pns_string->nodes[0], (mp_uint_t)pns_string->nodes[1]);
|
|
s_dest += (mp_uint_t)pns_string->nodes[1];
|
|
}
|
|
}
|
|
|
|
// load the object
|
|
EMIT_ARG(load_const_obj, mp_obj_new_str_from_vstr(string_kind == MP_PARSE_NODE_STRING ? &mp_type_str : &mp_type_bytes, &vstr));
|
|
}
|
|
|
|
// pns needs to have 2 nodes, first is lhs of comprehension, second is PN_comp_for node
|
|
STATIC void compile_comprehension(compiler_t *comp, mp_parse_node_struct_t *pns, scope_kind_t kind) {
|
|
assert(MP_PARSE_NODE_STRUCT_NUM_NODES(pns) == 2);
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_comp_for));
|
|
mp_parse_node_struct_t *pns_comp_for = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
// create a new scope for this comprehension
|
|
scope_t *s = scope_new_and_link(comp, kind, (mp_parse_node_t)pns, comp->scope_cur->emit_options);
|
|
// store the comprehension scope so the compiling function (this one) can use it at each pass
|
|
pns_comp_for->nodes[3] = (mp_parse_node_t)s;
|
|
}
|
|
|
|
// get the scope for this comprehension
|
|
scope_t *this_scope = (scope_t*)pns_comp_for->nodes[3];
|
|
|
|
// compile the comprehension
|
|
close_over_variables_etc(comp, this_scope, 0, 0);
|
|
|
|
compile_node(comp, pns_comp_for->nodes[1]); // source of the iterator
|
|
EMIT(get_iter);
|
|
EMIT_ARG(call_function, 1, 0, 0);
|
|
}
|
|
|
|
STATIC void compile_atom_paren(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// an empty tuple
|
|
c_tuple(comp, MP_PARSE_NODE_NULL, NULL);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
assert(!MP_PARSE_NODE_IS_NULL(pns->nodes[1]));
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])) {
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3b) {
|
|
// tuple of one item, with trailing comma
|
|
assert(MP_PARSE_NODE_IS_NULL(pns2->nodes[0]));
|
|
c_tuple(comp, pns->nodes[0], NULL);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_testlist_comp_3c) {
|
|
// tuple of many items
|
|
c_tuple(comp, pns->nodes[0], pns2);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_comp_for) {
|
|
// generator expression
|
|
compile_comprehension(comp, pns, SCOPE_GEN_EXPR);
|
|
} else {
|
|
// tuple with 2 items
|
|
goto tuple_with_2_items;
|
|
}
|
|
} else {
|
|
// tuple with 2 items
|
|
tuple_with_2_items:
|
|
c_tuple(comp, MP_PARSE_NODE_NULL, pns);
|
|
}
|
|
} else {
|
|
// parenthesis around a single item, is just that item
|
|
compile_node(comp, pns->nodes[0]);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_atom_bracket(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// empty list
|
|
EMIT_ARG(build_list, 0);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_testlist_comp)) {
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_STRUCT(pns2->nodes[1])) {
|
|
mp_parse_node_struct_t *pns3 = (mp_parse_node_struct_t*)pns2->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns3) == PN_testlist_comp_3b) {
|
|
// list of one item, with trailing comma
|
|
assert(MP_PARSE_NODE_IS_NULL(pns3->nodes[0]));
|
|
compile_node(comp, pns2->nodes[0]);
|
|
EMIT_ARG(build_list, 1);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns3) == PN_testlist_comp_3c) {
|
|
// list of many items
|
|
compile_node(comp, pns2->nodes[0]);
|
|
compile_generic_all_nodes(comp, pns3);
|
|
EMIT_ARG(build_list, 1 + MP_PARSE_NODE_STRUCT_NUM_NODES(pns3));
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns3) == PN_comp_for) {
|
|
// list comprehension
|
|
compile_comprehension(comp, pns2, SCOPE_LIST_COMP);
|
|
} else {
|
|
// list with 2 items
|
|
goto list_with_2_items;
|
|
}
|
|
} else {
|
|
// list with 2 items
|
|
list_with_2_items:
|
|
compile_node(comp, pns2->nodes[0]);
|
|
compile_node(comp, pns2->nodes[1]);
|
|
EMIT_ARG(build_list, 2);
|
|
}
|
|
} else {
|
|
// list with 1 item
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(build_list, 1);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_atom_brace(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
mp_parse_node_t pn = pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_NULL(pn)) {
|
|
// empty dict
|
|
EMIT_ARG(build_map, 0);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
|
|
pns = (mp_parse_node_struct_t*)pn;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_dictorsetmaker_item) {
|
|
// dict with one element
|
|
EMIT_ARG(build_map, 1);
|
|
compile_node(comp, pn);
|
|
EMIT(store_map);
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_dictorsetmaker) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])); // should succeed
|
|
mp_parse_node_struct_t *pns1 = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_dictorsetmaker_list) {
|
|
// dict/set with multiple elements
|
|
|
|
// get tail elements (2nd, 3rd, ...)
|
|
mp_parse_node_t *nodes;
|
|
int n = mp_parse_node_extract_list(&pns1->nodes[0], PN_dictorsetmaker_list2, &nodes);
|
|
|
|
// first element sets whether it's a dict or set
|
|
bool is_dict;
|
|
if (!MICROPY_PY_BUILTINS_SET || MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_dictorsetmaker_item)) {
|
|
// a dictionary
|
|
EMIT_ARG(build_map, 1 + n);
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT(store_map);
|
|
is_dict = true;
|
|
} else {
|
|
// a set
|
|
compile_node(comp, pns->nodes[0]); // 1st value of set
|
|
is_dict = false;
|
|
}
|
|
|
|
// process rest of elements
|
|
for (int i = 0; i < n; i++) {
|
|
mp_parse_node_t pn_i = nodes[i];
|
|
bool is_key_value = MP_PARSE_NODE_IS_STRUCT_KIND(pn_i, PN_dictorsetmaker_item);
|
|
compile_node(comp, pn_i);
|
|
if (is_dict) {
|
|
if (!is_key_value) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "expecting key:value for dictionary");
|
|
return;
|
|
}
|
|
EMIT(store_map);
|
|
} else {
|
|
if (is_key_value) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "expecting just a value for set");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
#if MICROPY_PY_BUILTINS_SET
|
|
// if it's a set, build it
|
|
if (!is_dict) {
|
|
EMIT_ARG(build_set, 1 + n);
|
|
}
|
|
#endif
|
|
} else {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns1) == PN_comp_for); // should be
|
|
// dict/set comprehension
|
|
if (!MICROPY_PY_BUILTINS_SET || MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_dictorsetmaker_item)) {
|
|
// a dictionary comprehension
|
|
compile_comprehension(comp, pns, SCOPE_DICT_COMP);
|
|
} else {
|
|
// a set comprehension
|
|
compile_comprehension(comp, pns, SCOPE_SET_COMP);
|
|
}
|
|
}
|
|
} else {
|
|
// set with one element
|
|
goto set_with_one_element;
|
|
}
|
|
} else {
|
|
// set with one element
|
|
set_with_one_element:
|
|
#if MICROPY_PY_BUILTINS_SET
|
|
compile_node(comp, pn);
|
|
EMIT_ARG(build_set, 1);
|
|
#else
|
|
assert(0);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
STATIC void compile_trailer_paren(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_trailer_paren_helper(comp, pns->nodes[0], false, 0);
|
|
}
|
|
|
|
STATIC void compile_trailer_bracket(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// object who's index we want is on top of stack
|
|
compile_node(comp, pns->nodes[0]); // the index
|
|
EMIT(load_subscr);
|
|
}
|
|
|
|
STATIC void compile_trailer_period(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// object who's attribute we want is on top of stack
|
|
EMIT_ARG(load_attr, MP_PARSE_NODE_LEAF_ARG(pns->nodes[0])); // attribute to get
|
|
}
|
|
|
|
#if MICROPY_PY_BUILTINS_SLICE
|
|
STATIC void compile_subscript_3_helper(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == PN_subscript_3); // should always be
|
|
mp_parse_node_t pn = pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_NULL(pn)) {
|
|
// [?:]
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT_ARG(build_slice, 2);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT(pn)) {
|
|
pns = (mp_parse_node_struct_t*)pn;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_subscript_3c) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
pn = pns->nodes[0];
|
|
if (MP_PARSE_NODE_IS_NULL(pn)) {
|
|
// [?::]
|
|
EMIT_ARG(build_slice, 2);
|
|
} else {
|
|
// [?::x]
|
|
compile_node(comp, pn);
|
|
EMIT_ARG(build_slice, 3);
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_subscript_3d) {
|
|
compile_node(comp, pns->nodes[0]);
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])); // should always be
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == PN_sliceop); // should always be
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// [?:x:]
|
|
EMIT_ARG(build_slice, 2);
|
|
} else {
|
|
// [?:x:x]
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT_ARG(build_slice, 3);
|
|
}
|
|
} else {
|
|
// [?:x]
|
|
compile_node(comp, pn);
|
|
EMIT_ARG(build_slice, 2);
|
|
}
|
|
} else {
|
|
// [?:x]
|
|
compile_node(comp, pn);
|
|
EMIT_ARG(build_slice, 2);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_subscript_2(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
compile_node(comp, pns->nodes[0]); // start of slice
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns->nodes[1])); // should always be
|
|
compile_subscript_3_helper(comp, (mp_parse_node_struct_t*)pns->nodes[1]);
|
|
}
|
|
|
|
STATIC void compile_subscript_3(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
compile_subscript_3_helper(comp, pns);
|
|
}
|
|
#endif // MICROPY_PY_BUILTINS_SLICE
|
|
|
|
STATIC void compile_dictorsetmaker_item(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// if this is called then we are compiling a dict key:value pair
|
|
compile_node(comp, pns->nodes[1]); // value
|
|
compile_node(comp, pns->nodes[0]); // key
|
|
}
|
|
|
|
STATIC void compile_classdef(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
qstr cname = compile_classdef_helper(comp, pns, comp->scope_cur->emit_options);
|
|
// store class object into class name
|
|
compile_store_id(comp, cname);
|
|
}
|
|
|
|
STATIC void compile_yield_expr(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
if (comp->scope_cur->kind != SCOPE_FUNCTION && comp->scope_cur->kind != SCOPE_LAMBDA) {
|
|
compile_syntax_error(comp, (mp_parse_node_t)pns, "'yield' outside function");
|
|
return;
|
|
}
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT(yield_value);
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_yield_arg_from)) {
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT(get_iter);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT(yield_from);
|
|
} else {
|
|
compile_node(comp, pns->nodes[0]);
|
|
EMIT(yield_value);
|
|
}
|
|
}
|
|
|
|
STATIC void compile_string(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// only create and load the actual str object on the last pass
|
|
if (comp->pass != MP_PASS_EMIT) {
|
|
EMIT_ARG(load_const_obj, mp_const_none);
|
|
} else {
|
|
EMIT_ARG(load_const_obj, mp_obj_new_str((const char*)pns->nodes[0], (mp_uint_t)pns->nodes[1], false));
|
|
}
|
|
}
|
|
|
|
STATIC void compile_bytes(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
// only create and load the actual bytes object on the last pass
|
|
if (comp->pass != MP_PASS_EMIT) {
|
|
EMIT_ARG(load_const_obj, mp_const_none);
|
|
} else {
|
|
EMIT_ARG(load_const_obj, mp_obj_new_bytes((const byte*)pns->nodes[0], (mp_uint_t)pns->nodes[1]));
|
|
}
|
|
}
|
|
|
|
STATIC void compile_const_object(compiler_t *comp, mp_parse_node_struct_t *pns) {
|
|
EMIT_ARG(load_const_obj, (mp_obj_t)pns->nodes[0]);
|
|
}
|
|
|
|
typedef void (*compile_function_t)(compiler_t*, mp_parse_node_struct_t*);
|
|
STATIC compile_function_t compile_function[] = {
|
|
#define nc NULL
|
|
#define c(f) compile_##f
|
|
#define DEF_RULE(rule, comp, kind, ...) comp,
|
|
#include "py/grammar.h"
|
|
#undef nc
|
|
#undef c
|
|
#undef DEF_RULE
|
|
NULL,
|
|
compile_string,
|
|
compile_bytes,
|
|
compile_const_object,
|
|
};
|
|
|
|
STATIC void compile_node(compiler_t *comp, mp_parse_node_t pn) {
|
|
if (MP_PARSE_NODE_IS_NULL(pn)) {
|
|
// pass
|
|
} else if (MP_PARSE_NODE_IS_SMALL_INT(pn)) {
|
|
mp_int_t arg = MP_PARSE_NODE_LEAF_SMALL_INT(pn);
|
|
EMIT_ARG(load_const_small_int, arg);
|
|
} else if (MP_PARSE_NODE_IS_LEAF(pn)) {
|
|
mp_uint_t arg = MP_PARSE_NODE_LEAF_ARG(pn);
|
|
switch (MP_PARSE_NODE_LEAF_KIND(pn)) {
|
|
case MP_PARSE_NODE_ID: compile_load_id(comp, arg); break;
|
|
case MP_PARSE_NODE_STRING: EMIT_ARG(load_const_str, arg); break;
|
|
case MP_PARSE_NODE_BYTES:
|
|
// only create and load the actual bytes object on the last pass
|
|
if (comp->pass != MP_PASS_EMIT) {
|
|
EMIT_ARG(load_const_obj, mp_const_none);
|
|
} else {
|
|
mp_uint_t len;
|
|
const byte *data = qstr_data(arg, &len);
|
|
EMIT_ARG(load_const_obj, mp_obj_new_bytes(data, len));
|
|
}
|
|
break;
|
|
case MP_PARSE_NODE_TOKEN: default:
|
|
if (arg == MP_TOKEN_NEWLINE) {
|
|
// this can occur when file_input lets through a NEWLINE (eg if file starts with a newline)
|
|
// or when single_input lets through a NEWLINE (user enters a blank line)
|
|
// do nothing
|
|
} else {
|
|
EMIT_ARG(load_const_tok, arg);
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
EMIT_ARG(set_source_line, pns->source_line);
|
|
compile_function_t f = compile_function[MP_PARSE_NODE_STRUCT_KIND(pns)];
|
|
if (f == NULL) {
|
|
#if MICROPY_DEBUG_PRINTERS
|
|
printf("node %u cannot be compiled\n", (uint)MP_PARSE_NODE_STRUCT_KIND(pns));
|
|
mp_parse_node_print(pn, 0);
|
|
#endif
|
|
compile_syntax_error(comp, pn, "internal compiler error");
|
|
} else {
|
|
f(comp, pns);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC void compile_scope_func_lambda_param(compiler_t *comp, mp_parse_node_t pn, pn_kind_t pn_name, pn_kind_t pn_star, pn_kind_t pn_dbl_star) {
|
|
// TODO verify that *k and **k are last etc
|
|
qstr param_name = MP_QSTR_NULL;
|
|
uint param_flag = ID_FLAG_IS_PARAM;
|
|
if (MP_PARSE_NODE_IS_ID(pn)) {
|
|
param_name = MP_PARSE_NODE_LEAF_ARG(pn);
|
|
if (comp->have_star) {
|
|
// comes after a star, so counts as a keyword-only parameter
|
|
comp->scope_cur->num_kwonly_args += 1;
|
|
} else {
|
|
// comes before a star, so counts as a positional parameter
|
|
comp->scope_cur->num_pos_args += 1;
|
|
}
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns) == pn_name) {
|
|
param_name = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
if (comp->have_star) {
|
|
// comes after a star, so counts as a keyword-only parameter
|
|
comp->scope_cur->num_kwonly_args += 1;
|
|
} else {
|
|
// comes before a star, so counts as a positional parameter
|
|
comp->scope_cur->num_pos_args += 1;
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == pn_star) {
|
|
comp->have_star = true;
|
|
param_flag = ID_FLAG_IS_PARAM | ID_FLAG_IS_STAR_PARAM;
|
|
if (MP_PARSE_NODE_IS_NULL(pns->nodes[0])) {
|
|
// bare star
|
|
// TODO see http://www.python.org/dev/peps/pep-3102/
|
|
//assert(comp->scope_cur->num_dict_params == 0);
|
|
} else if (MP_PARSE_NODE_IS_ID(pns->nodes[0])) {
|
|
// named star
|
|
comp->scope_cur->scope_flags |= MP_SCOPE_FLAG_VARARGS;
|
|
param_name = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_tfpdef)); // should be
|
|
// named star with possible annotation
|
|
comp->scope_cur->scope_flags |= MP_SCOPE_FLAG_VARARGS;
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
param_name = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
}
|
|
} else {
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == pn_dbl_star); // should be
|
|
param_name = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
param_flag = ID_FLAG_IS_PARAM | ID_FLAG_IS_DBL_STAR_PARAM;
|
|
comp->scope_cur->scope_flags |= MP_SCOPE_FLAG_VARKEYWORDS;
|
|
}
|
|
}
|
|
|
|
if (param_name != MP_QSTR_NULL) {
|
|
bool added;
|
|
id_info_t *id_info = scope_find_or_add_id(comp->scope_cur, param_name, &added);
|
|
if (!added) {
|
|
compile_syntax_error(comp, pn, "name reused for argument");
|
|
return;
|
|
}
|
|
id_info->kind = ID_INFO_KIND_LOCAL;
|
|
id_info->flags = param_flag;
|
|
}
|
|
}
|
|
|
|
STATIC void compile_scope_func_param(compiler_t *comp, mp_parse_node_t pn) {
|
|
compile_scope_func_lambda_param(comp, pn, PN_typedargslist_name, PN_typedargslist_star, PN_typedargslist_dbl_star);
|
|
}
|
|
|
|
STATIC void compile_scope_lambda_param(compiler_t *comp, mp_parse_node_t pn) {
|
|
compile_scope_func_lambda_param(comp, pn, PN_varargslist_name, PN_varargslist_star, PN_varargslist_dbl_star);
|
|
}
|
|
|
|
#if MICROPY_EMIT_NATIVE
|
|
STATIC void compile_scope_func_annotations(compiler_t *comp, mp_parse_node_t pn) {
|
|
if (!MP_PARSE_NODE_IS_STRUCT(pn)) {
|
|
// no annotation
|
|
return;
|
|
}
|
|
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_typedargslist_name) {
|
|
// named parameter with possible annotation
|
|
// fallthrough
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_typedargslist_star) {
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_tfpdef)) {
|
|
// named star with possible annotation
|
|
pns = (mp_parse_node_struct_t*)pns->nodes[0];
|
|
// fallthrough
|
|
} else {
|
|
// no annotation
|
|
return;
|
|
}
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns) == PN_typedargslist_dbl_star) {
|
|
// double star with possible annotation
|
|
// fallthrough
|
|
} else {
|
|
// no annotation
|
|
return;
|
|
}
|
|
|
|
mp_parse_node_t pn_annotation = pns->nodes[1];
|
|
|
|
if (!MP_PARSE_NODE_IS_NULL(pn_annotation)) {
|
|
qstr param_name = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]);
|
|
id_info_t *id_info = scope_find(comp->scope_cur, param_name);
|
|
assert(id_info != NULL);
|
|
|
|
if (MP_PARSE_NODE_IS_ID(pn_annotation)) {
|
|
qstr arg_type = MP_PARSE_NODE_LEAF_ARG(pn_annotation);
|
|
EMIT_ARG(set_native_type, MP_EMIT_NATIVE_TYPE_ARG, id_info->local_num, arg_type);
|
|
} else {
|
|
compile_syntax_error(comp, pn_annotation, "parameter annotation must be an identifier");
|
|
}
|
|
}
|
|
}
|
|
#endif // MICROPY_EMIT_NATIVE
|
|
|
|
STATIC void compile_scope_comp_iter(compiler_t *comp, mp_parse_node_t pn_iter, mp_parse_node_t pn_inner_expr, int l_top, int for_depth) {
|
|
tail_recursion:
|
|
if (MP_PARSE_NODE_IS_NULL(pn_iter)) {
|
|
// no more nested if/for; compile inner expression
|
|
compile_node(comp, pn_inner_expr);
|
|
if (comp->scope_cur->kind == SCOPE_LIST_COMP) {
|
|
EMIT_ARG(list_append, for_depth + 2);
|
|
} else if (comp->scope_cur->kind == SCOPE_DICT_COMP) {
|
|
EMIT_ARG(map_add, for_depth + 2);
|
|
#if MICROPY_PY_BUILTINS_SET
|
|
} else if (comp->scope_cur->kind == SCOPE_SET_COMP) {
|
|
EMIT_ARG(set_add, for_depth + 2);
|
|
#endif
|
|
} else {
|
|
EMIT(yield_value);
|
|
EMIT(pop_top);
|
|
}
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn_iter, PN_comp_if)) {
|
|
// if condition
|
|
mp_parse_node_struct_t *pns_comp_if = (mp_parse_node_struct_t*)pn_iter;
|
|
c_if_cond(comp, pns_comp_if->nodes[0], false, l_top);
|
|
pn_iter = pns_comp_if->nodes[1];
|
|
goto tail_recursion;
|
|
} else {
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pn_iter, PN_comp_for)); // should be
|
|
// for loop
|
|
mp_parse_node_struct_t *pns_comp_for2 = (mp_parse_node_struct_t*)pn_iter;
|
|
compile_node(comp, pns_comp_for2->nodes[1]);
|
|
uint l_end2 = comp_next_label(comp);
|
|
uint l_top2 = comp_next_label(comp);
|
|
EMIT(get_iter);
|
|
EMIT_ARG(label_assign, l_top2);
|
|
EMIT_ARG(for_iter, l_end2);
|
|
c_assign(comp, pns_comp_for2->nodes[0], ASSIGN_STORE);
|
|
compile_scope_comp_iter(comp, pns_comp_for2->nodes[2], pn_inner_expr, l_top2, for_depth + 1);
|
|
EMIT_ARG(jump, l_top2);
|
|
EMIT_ARG(label_assign, l_end2);
|
|
EMIT(for_iter_end);
|
|
}
|
|
}
|
|
|
|
STATIC void check_for_doc_string(compiler_t *comp, mp_parse_node_t pn) {
|
|
#if MICROPY_ENABLE_DOC_STRING
|
|
// see http://www.python.org/dev/peps/pep-0257/
|
|
|
|
// look for the first statement
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_expr_stmt)) {
|
|
// a statement; fall through
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_file_input_2)) {
|
|
// file input; find the first non-newline node
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
int num_nodes = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
|
|
for (int i = 0; i < num_nodes; i++) {
|
|
pn = pns->nodes[i];
|
|
if (!(MP_PARSE_NODE_IS_LEAF(pn) && MP_PARSE_NODE_LEAF_KIND(pn) == MP_PARSE_NODE_TOKEN && MP_PARSE_NODE_LEAF_ARG(pn) == MP_TOKEN_NEWLINE)) {
|
|
// not a newline, so this is the first statement; finish search
|
|
break;
|
|
}
|
|
}
|
|
// if we didn't find a non-newline then it's okay to fall through; pn will be a newline and so doc-string test below will fail gracefully
|
|
} else if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_suite_block_stmts)) {
|
|
// a list of statements; get the first one
|
|
pn = ((mp_parse_node_struct_t*)pn)->nodes[0];
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
// check the first statement for a doc string
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(pn, PN_expr_stmt)) {
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
|
|
if ((MP_PARSE_NODE_IS_LEAF(pns->nodes[0])
|
|
&& MP_PARSE_NODE_LEAF_KIND(pns->nodes[0]) == MP_PARSE_NODE_STRING)
|
|
|| MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[0], PN_string)) {
|
|
// compile the doc string
|
|
compile_node(comp, pns->nodes[0]);
|
|
// store the doc string
|
|
compile_store_id(comp, MP_QSTR___doc__);
|
|
}
|
|
}
|
|
#else
|
|
(void)comp;
|
|
(void)pn;
|
|
#endif
|
|
}
|
|
|
|
STATIC void compile_scope(compiler_t *comp, scope_t *scope, pass_kind_t pass) {
|
|
comp->pass = pass;
|
|
comp->scope_cur = scope;
|
|
comp->next_label = 1;
|
|
EMIT_ARG(start_pass, pass, scope);
|
|
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
// reset maximum stack sizes in scope
|
|
// they will be computed in this first pass
|
|
scope->stack_size = 0;
|
|
scope->exc_stack_size = 0;
|
|
}
|
|
|
|
// compile
|
|
if (MP_PARSE_NODE_IS_STRUCT_KIND(scope->pn, PN_eval_input)) {
|
|
assert(scope->kind == SCOPE_MODULE);
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
compile_node(comp, pns->nodes[0]); // compile the expression
|
|
EMIT(return_value);
|
|
} else if (scope->kind == SCOPE_MODULE) {
|
|
if (!comp->is_repl) {
|
|
check_for_doc_string(comp, scope->pn);
|
|
}
|
|
compile_node(comp, scope->pn);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT(return_value);
|
|
} else if (scope->kind == SCOPE_FUNCTION) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(scope->pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == PN_funcdef);
|
|
|
|
// work out number of parameters, keywords and default parameters, and add them to the id_info array
|
|
// must be done before compiling the body so that arguments are numbered first (for LOAD_FAST etc)
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
comp->have_star = false;
|
|
apply_to_single_or_list(comp, pns->nodes[1], PN_typedargslist, compile_scope_func_param);
|
|
}
|
|
#if MICROPY_EMIT_NATIVE
|
|
else if (scope->emit_options == MP_EMIT_OPT_VIPER) {
|
|
// compile annotations; only needed on latter compiler passes
|
|
// only needed for viper emitter
|
|
|
|
// argument annotations
|
|
apply_to_single_or_list(comp, pns->nodes[1], PN_typedargslist, compile_scope_func_annotations);
|
|
|
|
// pns->nodes[2] is return/whole function annotation
|
|
mp_parse_node_t pn_annotation = pns->nodes[2];
|
|
if (!MP_PARSE_NODE_IS_NULL(pn_annotation)) {
|
|
// nodes[2] can be null or a test-expr
|
|
if (MP_PARSE_NODE_IS_ID(pn_annotation)) {
|
|
qstr ret_type = MP_PARSE_NODE_LEAF_ARG(pn_annotation);
|
|
EMIT_ARG(set_native_type, MP_EMIT_NATIVE_TYPE_RETURN, 0, ret_type);
|
|
} else {
|
|
compile_syntax_error(comp, pn_annotation, "return annotation must be an identifier");
|
|
}
|
|
}
|
|
}
|
|
#endif // MICROPY_EMIT_NATIVE
|
|
|
|
compile_node(comp, pns->nodes[3]); // 3 is function body
|
|
// emit return if it wasn't the last opcode
|
|
if (!EMIT(last_emit_was_return_value)) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
EMIT(return_value);
|
|
}
|
|
} else if (scope->kind == SCOPE_LAMBDA) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(scope->pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
assert(MP_PARSE_NODE_STRUCT_NUM_NODES(pns) == 3);
|
|
|
|
// work out number of parameters, keywords and default parameters, and add them to the id_info array
|
|
// must be done before compiling the body so that arguments are numbered first (for LOAD_FAST etc)
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
comp->have_star = false;
|
|
apply_to_single_or_list(comp, pns->nodes[0], PN_varargslist, compile_scope_lambda_param);
|
|
}
|
|
|
|
compile_node(comp, pns->nodes[1]); // 1 is lambda body
|
|
|
|
// if the lambda is a generator, then we return None, not the result of the expression of the lambda
|
|
if (scope->scope_flags & MP_SCOPE_FLAG_GENERATOR) {
|
|
EMIT(pop_top);
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
}
|
|
EMIT(return_value);
|
|
} else if (scope->kind == SCOPE_LIST_COMP || scope->kind == SCOPE_DICT_COMP || scope->kind == SCOPE_SET_COMP || scope->kind == SCOPE_GEN_EXPR) {
|
|
// a bit of a hack at the moment
|
|
|
|
assert(MP_PARSE_NODE_IS_STRUCT(scope->pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
assert(MP_PARSE_NODE_STRUCT_NUM_NODES(pns) == 2);
|
|
assert(MP_PARSE_NODE_IS_STRUCT_KIND(pns->nodes[1], PN_comp_for));
|
|
mp_parse_node_struct_t *pns_comp_for = (mp_parse_node_struct_t*)pns->nodes[1];
|
|
|
|
// We need a unique name for the comprehension argument (the iterator).
|
|
// CPython uses .0, but we should be able to use anything that won't
|
|
// clash with a user defined variable. Best to use an existing qstr,
|
|
// so we use the blank qstr.
|
|
qstr qstr_arg = MP_QSTR_;
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
bool added;
|
|
id_info_t *id_info = scope_find_or_add_id(comp->scope_cur, qstr_arg, &added);
|
|
assert(added);
|
|
id_info->kind = ID_INFO_KIND_LOCAL;
|
|
scope->num_pos_args = 1;
|
|
}
|
|
|
|
if (scope->kind == SCOPE_LIST_COMP) {
|
|
EMIT_ARG(build_list, 0);
|
|
} else if (scope->kind == SCOPE_DICT_COMP) {
|
|
EMIT_ARG(build_map, 0);
|
|
#if MICROPY_PY_BUILTINS_SET
|
|
} else if (scope->kind == SCOPE_SET_COMP) {
|
|
EMIT_ARG(build_set, 0);
|
|
#endif
|
|
}
|
|
|
|
uint l_end = comp_next_label(comp);
|
|
uint l_top = comp_next_label(comp);
|
|
compile_load_id(comp, qstr_arg);
|
|
EMIT_ARG(label_assign, l_top);
|
|
EMIT_ARG(for_iter, l_end);
|
|
c_assign(comp, pns_comp_for->nodes[0], ASSIGN_STORE);
|
|
compile_scope_comp_iter(comp, pns_comp_for->nodes[2], pns->nodes[0], l_top, 0);
|
|
EMIT_ARG(jump, l_top);
|
|
EMIT_ARG(label_assign, l_end);
|
|
EMIT(for_iter_end);
|
|
|
|
if (scope->kind == SCOPE_GEN_EXPR) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
}
|
|
EMIT(return_value);
|
|
} else {
|
|
assert(scope->kind == SCOPE_CLASS);
|
|
assert(MP_PARSE_NODE_IS_STRUCT(scope->pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == PN_classdef);
|
|
|
|
if (comp->pass == MP_PASS_SCOPE) {
|
|
bool added;
|
|
id_info_t *id_info = scope_find_or_add_id(scope, MP_QSTR___class__, &added);
|
|
assert(added);
|
|
id_info->kind = ID_INFO_KIND_LOCAL;
|
|
}
|
|
|
|
compile_load_id(comp, MP_QSTR___name__);
|
|
compile_store_id(comp, MP_QSTR___module__);
|
|
EMIT_ARG(load_const_str, MP_PARSE_NODE_LEAF_ARG(pns->nodes[0])); // 0 is class name
|
|
compile_store_id(comp, MP_QSTR___qualname__);
|
|
|
|
check_for_doc_string(comp, pns->nodes[2]);
|
|
compile_node(comp, pns->nodes[2]); // 2 is class body
|
|
|
|
id_info_t *id = scope_find(scope, MP_QSTR___class__);
|
|
assert(id != NULL);
|
|
if (id->kind == ID_INFO_KIND_LOCAL) {
|
|
EMIT_ARG(load_const_tok, MP_TOKEN_KW_NONE);
|
|
} else {
|
|
EMIT_LOAD_FAST(MP_QSTR___class__, id->local_num);
|
|
}
|
|
EMIT(return_value);
|
|
}
|
|
|
|
EMIT(end_pass);
|
|
|
|
// make sure we match all the exception levels
|
|
assert(comp->cur_except_level == 0);
|
|
}
|
|
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
// requires 3 passes: SCOPE, CODE_SIZE, EMIT
|
|
STATIC void compile_scope_inline_asm(compiler_t *comp, scope_t *scope, pass_kind_t pass) {
|
|
comp->pass = pass;
|
|
comp->scope_cur = scope;
|
|
comp->next_label = 1;
|
|
|
|
if (scope->kind != SCOPE_FUNCTION) {
|
|
compile_syntax_error(comp, MP_PARSE_NODE_NULL, "inline assembler must be a function");
|
|
return;
|
|
}
|
|
|
|
if (comp->pass > MP_PASS_SCOPE) {
|
|
EMIT_INLINE_ASM_ARG(start_pass, comp->pass, comp->scope_cur, &comp->compile_error);
|
|
}
|
|
|
|
// get the function definition parse node
|
|
assert(MP_PARSE_NODE_IS_STRUCT(scope->pn));
|
|
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)scope->pn;
|
|
assert(MP_PARSE_NODE_STRUCT_KIND(pns) == PN_funcdef);
|
|
|
|
//qstr f_id = MP_PARSE_NODE_LEAF_ARG(pns->nodes[0]); // function name
|
|
|
|
// parameters are in pns->nodes[1]
|
|
if (comp->pass == MP_PASS_CODE_SIZE) {
|
|
mp_parse_node_t *pn_params;
|
|
int n_params = mp_parse_node_extract_list(&pns->nodes[1], PN_typedargslist, &pn_params);
|
|
scope->num_pos_args = EMIT_INLINE_ASM_ARG(count_params, n_params, pn_params);
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
goto inline_asm_error;
|
|
}
|
|
}
|
|
|
|
assert(MP_PARSE_NODE_IS_NULL(pns->nodes[2])); // type
|
|
|
|
mp_parse_node_t pn_body = pns->nodes[3]; // body
|
|
mp_parse_node_t *nodes;
|
|
int num = mp_parse_node_extract_list(&pn_body, PN_suite_block_stmts, &nodes);
|
|
|
|
for (int i = 0; i < num; i++) {
|
|
assert(MP_PARSE_NODE_IS_STRUCT(nodes[i]));
|
|
mp_parse_node_struct_t *pns2 = (mp_parse_node_struct_t*)nodes[i];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) == PN_pass_stmt) {
|
|
// no instructions
|
|
continue;
|
|
} else if (MP_PARSE_NODE_STRUCT_KIND(pns2) != PN_expr_stmt) {
|
|
// not an instruction; error
|
|
not_an_instruction:
|
|
compile_syntax_error(comp, nodes[i], "expecting an assembler instruction");
|
|
return;
|
|
}
|
|
|
|
// check structure of parse node
|
|
assert(MP_PARSE_NODE_IS_STRUCT(pns2->nodes[0]));
|
|
if (!MP_PARSE_NODE_IS_NULL(pns2->nodes[1])) {
|
|
goto not_an_instruction;
|
|
}
|
|
pns2 = (mp_parse_node_struct_t*)pns2->nodes[0];
|
|
if (MP_PARSE_NODE_STRUCT_KIND(pns2) != PN_power) {
|
|
goto not_an_instruction;
|
|
}
|
|
if (!MP_PARSE_NODE_IS_ID(pns2->nodes[0])) {
|
|
goto not_an_instruction;
|
|
}
|
|
if (!MP_PARSE_NODE_IS_STRUCT_KIND(pns2->nodes[1], PN_trailer_paren)) {
|
|
goto not_an_instruction;
|
|
}
|
|
assert(MP_PARSE_NODE_IS_NULL(pns2->nodes[2]));
|
|
|
|
// parse node looks like an instruction
|
|
// get instruction name and args
|
|
qstr op = MP_PARSE_NODE_LEAF_ARG(pns2->nodes[0]);
|
|
pns2 = (mp_parse_node_struct_t*)pns2->nodes[1]; // PN_trailer_paren
|
|
mp_parse_node_t *pn_arg;
|
|
int n_args = mp_parse_node_extract_list(&pns2->nodes[0], PN_arglist, &pn_arg);
|
|
|
|
// emit instructions
|
|
if (op == MP_QSTR_label) {
|
|
if (!(n_args == 1 && MP_PARSE_NODE_IS_ID(pn_arg[0]))) {
|
|
compile_syntax_error(comp, nodes[i], "'label' requires 1 argument");
|
|
return;
|
|
}
|
|
uint lab = comp_next_label(comp);
|
|
if (pass > MP_PASS_SCOPE) {
|
|
if (!EMIT_INLINE_ASM_ARG(label, lab, MP_PARSE_NODE_LEAF_ARG(pn_arg[0]))) {
|
|
compile_syntax_error(comp, nodes[i], "label redefined");
|
|
return;
|
|
}
|
|
}
|
|
} else if (op == MP_QSTR_align) {
|
|
if (!(n_args == 1 && MP_PARSE_NODE_IS_SMALL_INT(pn_arg[0]))) {
|
|
compile_syntax_error(comp, nodes[i], "'align' requires 1 argument");
|
|
return;
|
|
}
|
|
if (pass > MP_PASS_SCOPE) {
|
|
EMIT_INLINE_ASM_ARG(align, MP_PARSE_NODE_LEAF_SMALL_INT(pn_arg[0]));
|
|
}
|
|
} else if (op == MP_QSTR_data) {
|
|
if (!(n_args >= 2 && MP_PARSE_NODE_IS_SMALL_INT(pn_arg[0]))) {
|
|
compile_syntax_error(comp, nodes[i], "'data' requires at least 2 arguments");
|
|
return;
|
|
}
|
|
if (pass > MP_PASS_SCOPE) {
|
|
mp_int_t bytesize = MP_PARSE_NODE_LEAF_SMALL_INT(pn_arg[0]);
|
|
for (uint j = 1; j < n_args; j++) {
|
|
if (!MP_PARSE_NODE_IS_SMALL_INT(pn_arg[j])) {
|
|
compile_syntax_error(comp, nodes[i], "'data' requires integer arguments");
|
|
return;
|
|
}
|
|
EMIT_INLINE_ASM_ARG(data, bytesize, MP_PARSE_NODE_LEAF_SMALL_INT(pn_arg[j]));
|
|
}
|
|
}
|
|
} else {
|
|
if (pass > MP_PASS_SCOPE) {
|
|
EMIT_INLINE_ASM_ARG(op, op, n_args, pn_arg);
|
|
}
|
|
}
|
|
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
pns = pns2; // this is the parse node that had the error
|
|
goto inline_asm_error;
|
|
}
|
|
}
|
|
|
|
if (comp->pass > MP_PASS_SCOPE) {
|
|
EMIT_INLINE_ASM(end_pass);
|
|
}
|
|
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
// inline assembler had an error; set line for its exception
|
|
inline_asm_error:
|
|
comp->compile_error_line = pns->source_line;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
STATIC void scope_compute_things(scope_t *scope) {
|
|
// in Micro Python we put the *x parameter after all other parameters (except **y)
|
|
if (scope->scope_flags & MP_SCOPE_FLAG_VARARGS) {
|
|
id_info_t *id_param = NULL;
|
|
for (int i = scope->id_info_len - 1; i >= 0; i--) {
|
|
id_info_t *id = &scope->id_info[i];
|
|
if (id->flags & ID_FLAG_IS_STAR_PARAM) {
|
|
if (id_param != NULL) {
|
|
// swap star param with last param
|
|
id_info_t temp = *id_param; *id_param = *id; *id = temp;
|
|
}
|
|
break;
|
|
} else if (id_param == NULL && id->flags == ID_FLAG_IS_PARAM) {
|
|
id_param = id;
|
|
}
|
|
}
|
|
}
|
|
|
|
// in functions, turn implicit globals into explicit globals
|
|
// compute the index of each local
|
|
scope->num_locals = 0;
|
|
for (int i = 0; i < scope->id_info_len; i++) {
|
|
id_info_t *id = &scope->id_info[i];
|
|
if (scope->kind == SCOPE_CLASS && id->qst == MP_QSTR___class__) {
|
|
// __class__ is not counted as a local; if it's used then it becomes a ID_INFO_KIND_CELL
|
|
continue;
|
|
}
|
|
if (scope->kind >= SCOPE_FUNCTION && scope->kind <= SCOPE_GEN_EXPR && id->kind == ID_INFO_KIND_GLOBAL_IMPLICIT) {
|
|
id->kind = ID_INFO_KIND_GLOBAL_EXPLICIT;
|
|
}
|
|
// params always count for 1 local, even if they are a cell
|
|
if (id->kind == ID_INFO_KIND_LOCAL || (id->flags & ID_FLAG_IS_PARAM)) {
|
|
id->local_num = scope->num_locals++;
|
|
}
|
|
}
|
|
|
|
// compute the index of cell vars
|
|
for (int i = 0; i < scope->id_info_len; i++) {
|
|
id_info_t *id = &scope->id_info[i];
|
|
// in Micro Python the cells come right after the fast locals
|
|
// parameters are not counted here, since they remain at the start
|
|
// of the locals, even if they are cell vars
|
|
if (id->kind == ID_INFO_KIND_CELL && !(id->flags & ID_FLAG_IS_PARAM)) {
|
|
id->local_num = scope->num_locals;
|
|
scope->num_locals += 1;
|
|
}
|
|
}
|
|
|
|
// compute the index of free vars
|
|
// make sure they are in the order of the parent scope
|
|
if (scope->parent != NULL) {
|
|
int num_free = 0;
|
|
for (int i = 0; i < scope->parent->id_info_len; i++) {
|
|
id_info_t *id = &scope->parent->id_info[i];
|
|
if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
|
|
for (int j = 0; j < scope->id_info_len; j++) {
|
|
id_info_t *id2 = &scope->id_info[j];
|
|
if (id2->kind == ID_INFO_KIND_FREE && id->qst == id2->qst) {
|
|
assert(!(id2->flags & ID_FLAG_IS_PARAM)); // free vars should not be params
|
|
// in Micro Python the frees come first, before the params
|
|
id2->local_num = num_free;
|
|
num_free += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// in Micro Python shift all other locals after the free locals
|
|
if (num_free > 0) {
|
|
for (int i = 0; i < scope->id_info_len; i++) {
|
|
id_info_t *id = &scope->id_info[i];
|
|
if (id->kind != ID_INFO_KIND_FREE || (id->flags & ID_FLAG_IS_PARAM)) {
|
|
id->local_num += num_free;
|
|
}
|
|
}
|
|
scope->num_pos_args += num_free; // free vars are counted as params for passing them into the function
|
|
scope->num_locals += num_free;
|
|
}
|
|
}
|
|
}
|
|
|
|
mp_obj_t mp_compile(mp_parse_node_t pn, qstr source_file, uint emit_opt, bool is_repl) {
|
|
compiler_t *comp = m_new0(compiler_t, 1);
|
|
comp->source_file = source_file;
|
|
comp->is_repl = is_repl;
|
|
comp->compile_error = MP_OBJ_NULL;
|
|
|
|
// create the module scope
|
|
scope_t *module_scope = scope_new_and_link(comp, SCOPE_MODULE, pn, emit_opt);
|
|
|
|
// optimise constants (scope must be set for error messages to work)
|
|
comp->scope_cur = module_scope;
|
|
mp_map_t consts;
|
|
mp_map_init(&consts, 0);
|
|
module_scope->pn = fold_constants(comp, module_scope->pn, &consts);
|
|
mp_map_deinit(&consts);
|
|
|
|
// create standard emitter; it's used at least for MP_PASS_SCOPE
|
|
emit_t *emit_bc = emit_bc_new();
|
|
|
|
// compile pass 1
|
|
comp->emit = emit_bc;
|
|
#if MICROPY_EMIT_NATIVE
|
|
comp->emit_method_table = &emit_bc_method_table;
|
|
#endif
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
comp->emit_inline_asm = NULL;
|
|
comp->emit_inline_asm_method_table = NULL;
|
|
#endif
|
|
uint max_num_labels = 0;
|
|
for (scope_t *s = comp->scope_head; s != NULL && comp->compile_error == MP_OBJ_NULL; s = s->next) {
|
|
if (false) {
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
} else if (s->emit_options == MP_EMIT_OPT_ASM_THUMB) {
|
|
compile_scope_inline_asm(comp, s, MP_PASS_SCOPE);
|
|
#endif
|
|
} else {
|
|
compile_scope(comp, s, MP_PASS_SCOPE);
|
|
}
|
|
|
|
// update maximim number of labels needed
|
|
if (comp->next_label > max_num_labels) {
|
|
max_num_labels = comp->next_label;
|
|
}
|
|
}
|
|
|
|
// compute some things related to scope and identifiers
|
|
for (scope_t *s = comp->scope_head; s != NULL && comp->compile_error == MP_OBJ_NULL; s = s->next) {
|
|
scope_compute_things(s);
|
|
}
|
|
|
|
// set max number of labels now that it's calculated
|
|
emit_bc_set_max_num_labels(emit_bc, max_num_labels);
|
|
|
|
// compile pass 2 and 3
|
|
#if MICROPY_EMIT_NATIVE
|
|
emit_t *emit_native = NULL;
|
|
#endif
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
emit_inline_asm_t *emit_inline_thumb = NULL;
|
|
#endif
|
|
for (scope_t *s = comp->scope_head; s != NULL && comp->compile_error == MP_OBJ_NULL; s = s->next) {
|
|
if (false) {
|
|
// dummy
|
|
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
} else if (s->emit_options == MP_EMIT_OPT_ASM_THUMB) {
|
|
// inline assembly for thumb
|
|
if (emit_inline_thumb == NULL) {
|
|
emit_inline_thumb = emit_inline_thumb_new(max_num_labels);
|
|
}
|
|
comp->emit = NULL;
|
|
comp->emit_method_table = NULL;
|
|
comp->emit_inline_asm = emit_inline_thumb;
|
|
comp->emit_inline_asm_method_table = &emit_inline_thumb_method_table;
|
|
compile_scope_inline_asm(comp, s, MP_PASS_CODE_SIZE);
|
|
if (comp->compile_error == MP_OBJ_NULL) {
|
|
compile_scope_inline_asm(comp, s, MP_PASS_EMIT);
|
|
}
|
|
#endif
|
|
|
|
} else {
|
|
|
|
// choose the emit type
|
|
|
|
switch (s->emit_options) {
|
|
|
|
#if MICROPY_EMIT_NATIVE
|
|
case MP_EMIT_OPT_NATIVE_PYTHON:
|
|
case MP_EMIT_OPT_VIPER:
|
|
#if MICROPY_EMIT_X64
|
|
if (emit_native == NULL) {
|
|
emit_native = emit_native_x64_new(&comp->compile_error, max_num_labels);
|
|
}
|
|
comp->emit_method_table = &emit_native_x64_method_table;
|
|
#elif MICROPY_EMIT_X86
|
|
if (emit_native == NULL) {
|
|
emit_native = emit_native_x86_new(&comp->compile_error, max_num_labels);
|
|
}
|
|
comp->emit_method_table = &emit_native_x86_method_table;
|
|
#elif MICROPY_EMIT_THUMB
|
|
if (emit_native == NULL) {
|
|
emit_native = emit_native_thumb_new(&comp->compile_error, max_num_labels);
|
|
}
|
|
comp->emit_method_table = &emit_native_thumb_method_table;
|
|
#elif MICROPY_EMIT_ARM
|
|
if (emit_native == NULL) {
|
|
emit_native = emit_native_arm_new(&comp->compile_error, max_num_labels);
|
|
}
|
|
comp->emit_method_table = &emit_native_arm_method_table;
|
|
#endif
|
|
comp->emit = emit_native;
|
|
EMIT_ARG(set_native_type, MP_EMIT_NATIVE_TYPE_ENABLE, s->emit_options == MP_EMIT_OPT_VIPER, 0);
|
|
break;
|
|
#endif // MICROPY_EMIT_NATIVE
|
|
|
|
default:
|
|
comp->emit = emit_bc;
|
|
#if MICROPY_EMIT_NATIVE
|
|
comp->emit_method_table = &emit_bc_method_table;
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
// need a pass to compute stack size
|
|
compile_scope(comp, s, MP_PASS_STACK_SIZE);
|
|
|
|
// second last pass: compute code size
|
|
if (comp->compile_error == MP_OBJ_NULL) {
|
|
compile_scope(comp, s, MP_PASS_CODE_SIZE);
|
|
}
|
|
|
|
// final pass: emit code
|
|
if (comp->compile_error == MP_OBJ_NULL) {
|
|
compile_scope(comp, s, MP_PASS_EMIT);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (comp->compile_error != MP_OBJ_NULL) {
|
|
// if there is no line number for the error then use the line
|
|
// number for the start of this scope
|
|
compile_error_set_line(comp, comp->scope_cur->pn);
|
|
// add a traceback to the exception using relevant source info
|
|
mp_obj_exception_add_traceback(comp->compile_error, comp->source_file,
|
|
comp->compile_error_line, comp->scope_cur->simple_name);
|
|
}
|
|
|
|
// free the emitters
|
|
|
|
emit_bc_free(emit_bc);
|
|
#if MICROPY_EMIT_NATIVE
|
|
if (emit_native != NULL) {
|
|
#if MICROPY_EMIT_X64
|
|
emit_native_x64_free(emit_native);
|
|
#elif MICROPY_EMIT_X86
|
|
emit_native_x86_free(emit_native);
|
|
#elif MICROPY_EMIT_THUMB
|
|
emit_native_thumb_free(emit_native);
|
|
#elif MICROPY_EMIT_ARM
|
|
emit_native_arm_free(emit_native);
|
|
#endif
|
|
}
|
|
#endif
|
|
#if MICROPY_EMIT_INLINE_THUMB
|
|
if (emit_inline_thumb != NULL) {
|
|
emit_inline_thumb_free(emit_inline_thumb);
|
|
}
|
|
#endif
|
|
|
|
// free the parse tree
|
|
mp_parse_node_free(module_scope->pn);
|
|
|
|
// free the scopes
|
|
mp_raw_code_t *outer_raw_code = module_scope->raw_code;
|
|
for (scope_t *s = module_scope; s;) {
|
|
scope_t *next = s->next;
|
|
scope_free(s);
|
|
s = next;
|
|
}
|
|
|
|
// free the compiler
|
|
mp_obj_t compile_error = comp->compile_error;
|
|
m_del_obj(compiler_t, comp);
|
|
|
|
if (compile_error != MP_OBJ_NULL) {
|
|
nlr_raise(compile_error);
|
|
} else {
|
|
// return function that executes the outer module
|
|
return mp_make_function_from_raw_code(outer_raw_code, MP_OBJ_NULL, MP_OBJ_NULL);
|
|
}
|
|
}
|