![Damien George](/assets/img/avatar_default.png)
Exceptions know source file, line and block name. Also tidy up some debug printing functions and provide a global flag to enable/disable them.
842 lines
26 KiB
C
842 lines
26 KiB
C
#include <unistd.h>
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#include <stdlib.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 "misc.h"
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#include "mpconfig.h"
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#include "lexer.h"
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#include "parse.h"
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#include "scope.h"
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#include "runtime0.h"
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#include "emit.h"
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#include "bc0.h"
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struct _emit_t {
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pass_kind_t pass;
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int stack_size;
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bool last_emit_was_return_value;
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scope_t *scope;
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uint last_source_line_offset;
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uint last_source_line;
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uint max_num_labels;
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uint *label_offsets;
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uint code_info_offset;
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uint code_info_size;
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uint byte_code_offset;
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uint byte_code_size;
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byte *code_base; // stores both byte code and code info
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byte dummy_data[8];
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};
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emit_t *emit_bc_new(uint max_num_labels) {
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emit_t *emit = m_new0(emit_t, 1);
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emit->max_num_labels = max_num_labels;
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emit->label_offsets = m_new(uint, emit->max_num_labels);
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return emit;
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}
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// all functions must go through this one to emit code info
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static byte* emit_get_cur_to_write_code_info(emit_t* emit, int num_bytes_to_write) {
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//printf("emit %d\n", num_bytes_to_write);
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if (emit->pass < PASS_3) {
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emit->code_info_offset += num_bytes_to_write;
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return emit->dummy_data;
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} else {
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assert(emit->code_info_offset + num_bytes_to_write <= emit->code_info_size);
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byte *c = emit->code_base + emit->code_info_offset;
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emit->code_info_offset += num_bytes_to_write;
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return c;
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}
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}
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static void emit_write_code_info_qstr(emit_t* emit, qstr qstr) {
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byte* c = emit_get_cur_to_write_code_info(emit, 4);
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// TODO variable length encoding for qstr
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c[0] = qstr & 0xff;
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c[1] = (qstr >> 8) & 0xff;
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c[2] = (qstr >> 16) & 0xff;
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c[3] = (qstr >> 24) & 0xff;
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}
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static void emit_write_code_info_byte_byte(emit_t* emit, byte b1, uint b2) {
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byte* c = emit_get_cur_to_write_code_info(emit, 2);
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c[0] = b1;
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c[1] = b2;
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}
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// all functions must go through this one to emit byte code
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static byte* emit_get_cur_to_write_byte_code(emit_t* emit, int num_bytes_to_write) {
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//printf("emit %d\n", num_bytes_to_write);
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if (emit->pass < PASS_3) {
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emit->byte_code_offset += num_bytes_to_write;
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return emit->dummy_data;
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} else {
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assert(emit->byte_code_offset + num_bytes_to_write <= emit->byte_code_size);
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byte *c = emit->code_base + emit->code_info_size + emit->byte_code_offset;
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emit->byte_code_offset += num_bytes_to_write;
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return c;
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}
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}
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static void emit_write_byte_code_byte(emit_t* emit, byte b1) {
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byte* c = emit_get_cur_to_write_byte_code(emit, 1);
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c[0] = b1;
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}
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static void emit_write_byte_code_byte_byte(emit_t* emit, byte b1, uint b2) {
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assert((b2 & (~0xff)) == 0);
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byte* c = emit_get_cur_to_write_byte_code(emit, 2);
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c[0] = b1;
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c[1] = b2;
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}
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// integers (for small ints) are stored as 24 bits, in excess
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static void emit_write_byte_code_byte_int(emit_t* emit, byte b1, int num) {
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num += 0x800000;
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assert(0 <= num && num <= 0xffffff);
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byte* c = emit_get_cur_to_write_byte_code(emit, 4);
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c[0] = b1;
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c[1] = num;
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c[2] = num >> 8;
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c[3] = num >> 16;
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}
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static void emit_write_byte_code_byte_uint(emit_t* emit, byte b1, uint num) {
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if (num <= 127) { // fits in 0x7f
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// fit argument in single byte
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byte* c = emit_get_cur_to_write_byte_code(emit, 2);
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c[0] = b1;
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c[1] = num;
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} else if (num <= 16383) { // fits in 0x3fff
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// fit argument in two bytes
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byte* c = emit_get_cur_to_write_byte_code(emit, 3);
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c[0] = b1;
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c[1] = (num >> 8) | 0x80;
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c[2] = num;
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} else {
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// larger numbers not implemented/supported
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assert(0);
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}
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}
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static void emit_write_byte_code_byte_qstr(emit_t* emit, byte b1, qstr qstr) {
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emit_write_byte_code_byte_uint(emit, b1, qstr);
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}
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// unsigned labels are relative to ip following this instruction, stored as 16 bits
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static void emit_write_byte_code_byte_unsigned_label(emit_t* emit, byte b1, int label) {
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uint byte_code_offset;
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if (emit->pass < PASS_3) {
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byte_code_offset = 0;
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} else {
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byte_code_offset = emit->label_offsets[label] - emit->byte_code_offset - 3;
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}
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byte* c = emit_get_cur_to_write_byte_code(emit, 3);
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c[0] = b1;
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c[1] = byte_code_offset;
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c[2] = byte_code_offset >> 8;
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}
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// signed labels are relative to ip following this instruction, stored as 16 bits, in excess
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static void emit_write_byte_code_byte_signed_label(emit_t* emit, byte b1, int label) {
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int byte_code_offset;
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if (emit->pass < PASS_3) {
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byte_code_offset = 0;
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} else {
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byte_code_offset = emit->label_offsets[label] - emit->byte_code_offset - 3 + 0x8000;
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}
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byte* c = emit_get_cur_to_write_byte_code(emit, 3);
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c[0] = b1;
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c[1] = byte_code_offset;
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c[2] = byte_code_offset >> 8;
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}
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static void emit_bc_set_native_types(emit_t *emit, bool do_native_types) {
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}
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static void emit_bc_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope) {
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emit->pass = pass;
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emit->stack_size = 0;
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emit->last_emit_was_return_value = false;
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emit->scope = scope;
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emit->last_source_line_offset = 0;
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emit->last_source_line = 1;
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if (pass == PASS_2) {
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memset(emit->label_offsets, -1, emit->max_num_labels * sizeof(uint));
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}
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emit->byte_code_offset = 0;
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emit->code_info_offset = 0;
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// write code info size (don't know size at this stage in PASS_2 so need to use maximum space (4 bytes) to write it)
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{
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byte* c = emit_get_cur_to_write_code_info(emit, 4);
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machine_uint_t s = emit->code_info_size;
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c[0] = s & 0xff;
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c[1] = (s >> 8) & 0xff;
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c[2] = (s >> 16) & 0xff;
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c[3] = (s >> 24) & 0xff;
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}
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// code info
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emit_write_code_info_qstr(emit, scope->source_file);
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emit_write_code_info_qstr(emit, scope->simple_name);
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// prelude for initialising closed over variables
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int num_cell = 0;
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for (int i = 0; i < scope->id_info_len; i++) {
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id_info_t *id = &scope->id_info[i];
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if (id->kind == ID_INFO_KIND_CELL) {
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num_cell += 1;
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}
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}
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assert(num_cell <= 255);
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emit_write_byte_code_byte(emit, num_cell); // write number of locals that are cells
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for (int i = 0; i < scope->id_info_len; i++) {
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id_info_t *id = &scope->id_info[i];
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if (id->kind == ID_INFO_KIND_CELL) {
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emit_write_byte_code_byte(emit, id->local_num); // write the local which should be converted to a cell
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}
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}
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}
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static void emit_bc_end_pass(emit_t *emit) {
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// check stack is back to zero size
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if (emit->stack_size != 0) {
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printf("ERROR: stack size not back to zero; got %d\n", emit->stack_size);
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}
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emit_write_code_info_byte_byte(emit, 0, 0); // end of line number info
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if (emit->pass == PASS_2) {
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// calculate size of code in bytes
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emit->code_info_size = emit->code_info_offset;
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emit->byte_code_size = emit->byte_code_offset;
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emit->code_base = m_new(byte, emit->code_info_size + emit->byte_code_size);
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} else if (emit->pass == PASS_3) {
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rt_assign_byte_code(emit->scope->unique_code_id, emit->code_base, emit->code_info_size + emit->byte_code_size, emit->scope->num_params, emit->scope->num_locals, emit->scope->stack_size, (emit->scope->flags & SCOPE_FLAG_GENERATOR) != 0);
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}
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}
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bool emit_bc_last_emit_was_return_value(emit_t *emit) {
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return emit->last_emit_was_return_value;
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}
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int emit_bc_get_stack_size(emit_t *emit) {
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return emit->stack_size;
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}
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static void emit_bc_set_stack_size(emit_t *emit, int size) {
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emit->stack_size = size;
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}
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static void emit_bc_set_source_line(emit_t *emit, int source_line) {
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//printf("source: line %d -> %d offset %d -> %d\n", emit->last_source_line, source_line, emit->last_source_line_offset, emit->byte_code_offset);
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if (source_line > emit->last_source_line) {
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int bytes_to_skip = emit->byte_code_offset - emit->last_source_line_offset;
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for (; bytes_to_skip > 255; bytes_to_skip -= 255) {
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emit_write_code_info_byte_byte(emit, 255, 0);
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}
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int lines_to_skip = source_line - emit->last_source_line;
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for (; lines_to_skip > 255; lines_to_skip -= 255) {
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emit_write_code_info_byte_byte(emit, 0, 255);
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}
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emit_write_code_info_byte_byte(emit, bytes_to_skip, lines_to_skip);
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//printf(" %d %d\n", bytes_to_skip, lines_to_skip);
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emit->last_source_line_offset = emit->byte_code_offset;
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emit->last_source_line = source_line;
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}
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}
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static void emit_bc_load_id(emit_t *emit, qstr qstr) {
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emit_common_load_id(emit, &emit_bc_method_table, emit->scope, qstr);
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}
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static void emit_bc_store_id(emit_t *emit, qstr qstr) {
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emit_common_store_id(emit, &emit_bc_method_table, emit->scope, qstr);
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}
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static void emit_bc_delete_id(emit_t *emit, qstr qstr) {
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emit_common_delete_id(emit, &emit_bc_method_table, emit->scope, qstr);
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}
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static void emit_pre(emit_t *emit, int stack_size_delta) {
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emit->stack_size += stack_size_delta;
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if (emit->stack_size > emit->scope->stack_size) {
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emit->scope->stack_size = emit->stack_size;
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}
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emit->last_emit_was_return_value = false;
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}
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static void emit_bc_label_assign(emit_t *emit, int l) {
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emit_pre(emit, 0);
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assert(l < emit->max_num_labels);
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if (emit->pass == PASS_2) {
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// assign label offset
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assert(emit->label_offsets[l] == -1);
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emit->label_offsets[l] = emit->byte_code_offset;
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} else if (emit->pass == PASS_3) {
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// ensure label offset has not changed from PASS_2 to PASS_3
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//printf("l%d: (at %d vs %d)\n", l, emit->byte_code_offset, emit->label_offsets[l]);
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assert(emit->label_offsets[l] == emit->byte_code_offset);
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}
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}
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static void emit_bc_import_name(emit_t *emit, qstr qstr) {
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emit_pre(emit, -1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_IMPORT_NAME, qstr);
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}
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static void emit_bc_import_from(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_IMPORT_FROM, qstr);
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}
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static void emit_bc_import_star(emit_t *emit) {
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emit_pre(emit, -1);
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emit_write_byte_code_byte(emit, MP_BC_IMPORT_STAR);
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}
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static void emit_bc_load_const_tok(emit_t *emit, mp_token_kind_t tok) {
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emit_pre(emit, 1);
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switch (tok) {
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case MP_TOKEN_KW_FALSE: emit_write_byte_code_byte(emit, MP_BC_LOAD_CONST_FALSE); break;
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case MP_TOKEN_KW_NONE: emit_write_byte_code_byte(emit, MP_BC_LOAD_CONST_NONE); break;
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case MP_TOKEN_KW_TRUE: emit_write_byte_code_byte(emit, MP_BC_LOAD_CONST_TRUE); break;
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case MP_TOKEN_ELLIPSIS: emit_write_byte_code_byte(emit, MP_BC_LOAD_CONST_ELLIPSIS); break;
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default: assert(0);
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}
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}
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static void emit_bc_load_const_small_int(emit_t *emit, int arg) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_int(emit, MP_BC_LOAD_CONST_SMALL_INT, arg);
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}
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static void emit_bc_load_const_int(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_CONST_INT, qstr);
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}
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static void emit_bc_load_const_dec(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_CONST_DEC, qstr);
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}
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static void emit_bc_load_const_id(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_CONST_ID, qstr);
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}
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static void emit_bc_load_const_str(emit_t *emit, qstr qstr, bool bytes) {
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emit_pre(emit, 1);
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if (bytes) {
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_CONST_BYTES, qstr);
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} else {
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_CONST_STRING, qstr);
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}
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}
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static void emit_bc_load_const_verbatim_str(emit_t *emit, const char *str) {
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// not needed/supported for BC
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assert(0);
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}
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static void emit_bc_load_fast(emit_t *emit, qstr qstr, int local_num) {
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assert(local_num >= 0);
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emit_pre(emit, 1);
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switch (local_num) {
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case 0: emit_write_byte_code_byte(emit, MP_BC_LOAD_FAST_0); break;
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case 1: emit_write_byte_code_byte(emit, MP_BC_LOAD_FAST_1); break;
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case 2: emit_write_byte_code_byte(emit, MP_BC_LOAD_FAST_2); break;
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default: emit_write_byte_code_byte_uint(emit, MP_BC_LOAD_FAST_N, local_num); break;
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}
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}
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static void emit_bc_load_deref(emit_t *emit, qstr qstr, int local_num) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_uint(emit, MP_BC_LOAD_DEREF, local_num);
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}
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static void emit_bc_load_closure(emit_t *emit, qstr qstr, int local_num) {
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// not needed/supported for BC
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assert(0);
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}
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static void emit_bc_load_name(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_NAME, qstr);
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}
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static void emit_bc_load_global(emit_t *emit, qstr qstr) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_GLOBAL, qstr);
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}
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static void emit_bc_load_attr(emit_t *emit, qstr qstr) {
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emit_pre(emit, 0);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_ATTR, qstr);
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}
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static void emit_bc_load_method(emit_t *emit, qstr qstr) {
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emit_pre(emit, 0);
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emit_write_byte_code_byte_qstr(emit, MP_BC_LOAD_METHOD, qstr);
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}
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static void emit_bc_load_build_class(emit_t *emit) {
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emit_pre(emit, 1);
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emit_write_byte_code_byte(emit, MP_BC_LOAD_BUILD_CLASS);
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}
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static void emit_bc_store_fast(emit_t *emit, qstr qstr, int local_num) {
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assert(local_num >= 0);
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emit_pre(emit, -1);
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switch (local_num) {
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case 0: emit_write_byte_code_byte(emit, MP_BC_STORE_FAST_0); break;
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case 1: emit_write_byte_code_byte(emit, MP_BC_STORE_FAST_1); break;
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case 2: emit_write_byte_code_byte(emit, MP_BC_STORE_FAST_2); break;
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default: emit_write_byte_code_byte_uint(emit, MP_BC_STORE_FAST_N, local_num); break;
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}
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}
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static void emit_bc_store_deref(emit_t *emit, qstr qstr, int local_num) {
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emit_pre(emit, -1);
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emit_write_byte_code_byte_uint(emit, MP_BC_STORE_DEREF, local_num);
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}
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static void emit_bc_store_name(emit_t *emit, qstr qstr) {
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emit_pre(emit, -1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_STORE_NAME, qstr);
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}
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static void emit_bc_store_global(emit_t *emit, qstr qstr) {
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emit_pre(emit, -1);
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emit_write_byte_code_byte_qstr(emit, MP_BC_STORE_GLOBAL, qstr);
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}
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static void emit_bc_store_attr(emit_t *emit, qstr qstr) {
|
|
emit_pre(emit, -2);
|
|
emit_write_byte_code_byte_qstr(emit, MP_BC_STORE_ATTR, qstr);
|
|
}
|
|
|
|
static void emit_bc_store_subscr(emit_t *emit) {
|
|
emit_pre(emit, -3);
|
|
emit_write_byte_code_byte(emit, MP_BC_STORE_SUBSCR);
|
|
}
|
|
|
|
static void emit_bc_store_locals(emit_t *emit) {
|
|
// not needed
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte(emit, MP_BC_POP_TOP);
|
|
}
|
|
|
|
static void emit_bc_delete_fast(emit_t *emit, qstr qstr, int local_num) {
|
|
assert(local_num >= 0);
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_DELETE_FAST_N, local_num);
|
|
}
|
|
|
|
static void emit_bc_delete_deref(emit_t *emit, qstr qstr, int local_num) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_qstr(emit, MP_BC_DELETE_DEREF, local_num);
|
|
}
|
|
|
|
static void emit_bc_delete_name(emit_t *emit, qstr qstr) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_qstr(emit, MP_BC_DELETE_NAME, qstr);
|
|
}
|
|
|
|
static void emit_bc_delete_global(emit_t *emit, qstr qstr) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_qstr(emit, MP_BC_DELETE_GLOBAL, qstr);
|
|
}
|
|
|
|
static void emit_bc_delete_attr(emit_t *emit, qstr qstr) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_qstr(emit, MP_BC_DELETE_ATTR, qstr);
|
|
}
|
|
|
|
static void emit_bc_delete_subscr(emit_t *emit) {
|
|
emit_pre(emit, -2);
|
|
emit_write_byte_code_byte(emit, MP_BC_DELETE_SUBSCR);
|
|
}
|
|
|
|
static void emit_bc_dup_top(emit_t *emit) {
|
|
emit_pre(emit, 1);
|
|
emit_write_byte_code_byte(emit, MP_BC_DUP_TOP);
|
|
}
|
|
|
|
static void emit_bc_dup_top_two(emit_t *emit) {
|
|
emit_pre(emit, 2);
|
|
emit_write_byte_code_byte(emit, MP_BC_DUP_TOP_TWO);
|
|
}
|
|
|
|
static void emit_bc_pop_top(emit_t *emit) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte(emit, MP_BC_POP_TOP);
|
|
}
|
|
|
|
static void emit_bc_rot_two(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte(emit, MP_BC_ROT_TWO);
|
|
}
|
|
|
|
static void emit_bc_rot_three(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte(emit, MP_BC_ROT_THREE);
|
|
}
|
|
|
|
static void emit_bc_jump(emit_t *emit, int label) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_signed_label(emit, MP_BC_JUMP, label);
|
|
}
|
|
|
|
static void emit_bc_pop_jump_if_true(emit_t *emit, int label) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_signed_label(emit, MP_BC_POP_JUMP_IF_TRUE, label);
|
|
}
|
|
|
|
static void emit_bc_pop_jump_if_false(emit_t *emit, int label) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_signed_label(emit, MP_BC_POP_JUMP_IF_FALSE, label);
|
|
}
|
|
|
|
static void emit_bc_jump_if_true_or_pop(emit_t *emit, int label) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_signed_label(emit, MP_BC_JUMP_IF_TRUE_OR_POP, label);
|
|
}
|
|
|
|
static void emit_bc_jump_if_false_or_pop(emit_t *emit, int label) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_signed_label(emit, MP_BC_JUMP_IF_FALSE_OR_POP, label);
|
|
}
|
|
|
|
static void emit_bc_setup_loop(emit_t *emit, int label) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_SETUP_LOOP, label);
|
|
}
|
|
|
|
static void emit_bc_break_loop(emit_t *emit, int label) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_BREAK_LOOP, label);
|
|
}
|
|
|
|
static void emit_bc_continue_loop(emit_t *emit, int label) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_CONTINUE_LOOP, label);
|
|
}
|
|
|
|
static void emit_bc_setup_with(emit_t *emit, int label) {
|
|
emit_pre(emit, 7);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_SETUP_WITH, label);
|
|
}
|
|
|
|
static void emit_bc_with_cleanup(emit_t *emit) {
|
|
emit_pre(emit, -7);
|
|
emit_write_byte_code_byte(emit, MP_BC_WITH_CLEANUP);
|
|
}
|
|
|
|
static void emit_bc_setup_except(emit_t *emit, int label) {
|
|
emit_pre(emit, 6);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_SETUP_EXCEPT, label);
|
|
}
|
|
|
|
static void emit_bc_setup_finally(emit_t *emit, int label) {
|
|
emit_pre(emit, 6);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_SETUP_FINALLY, label);
|
|
}
|
|
|
|
static void emit_bc_end_finally(emit_t *emit) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte(emit, MP_BC_END_FINALLY);
|
|
}
|
|
|
|
static void emit_bc_get_iter(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte(emit, MP_BC_GET_ITER);
|
|
}
|
|
|
|
static void emit_bc_for_iter(emit_t *emit, int label) {
|
|
emit_pre(emit, 1);
|
|
emit_write_byte_code_byte_unsigned_label(emit, MP_BC_FOR_ITER, label);
|
|
}
|
|
|
|
static void emit_bc_for_iter_end(emit_t *emit) {
|
|
emit_pre(emit, -1);
|
|
}
|
|
|
|
static void emit_bc_pop_block(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte(emit, MP_BC_POP_BLOCK);
|
|
}
|
|
|
|
static void emit_bc_pop_except(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte(emit, MP_BC_POP_EXCEPT);
|
|
}
|
|
|
|
static void emit_bc_unary_op(emit_t *emit, rt_unary_op_t op) {
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_byte(emit, MP_BC_UNARY_OP, op);
|
|
}
|
|
|
|
static void emit_bc_binary_op(emit_t *emit, rt_binary_op_t op) {
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_byte(emit, MP_BC_BINARY_OP, op);
|
|
}
|
|
|
|
static void emit_bc_build_tuple(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, 1 - n_args);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_BUILD_TUPLE, n_args);
|
|
}
|
|
|
|
static void emit_bc_build_list(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, 1 - n_args);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_BUILD_LIST, n_args);
|
|
}
|
|
|
|
static void emit_bc_list_append(emit_t *emit, int list_stack_index) {
|
|
assert(list_stack_index >= 0);
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_LIST_APPEND, list_stack_index);
|
|
}
|
|
|
|
static void emit_bc_build_map(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, 1);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_BUILD_MAP, n_args);
|
|
}
|
|
|
|
static void emit_bc_store_map(emit_t *emit) {
|
|
emit_pre(emit, -2);
|
|
emit_write_byte_code_byte(emit, MP_BC_STORE_MAP);
|
|
}
|
|
|
|
static void emit_bc_map_add(emit_t *emit, int map_stack_index) {
|
|
assert(map_stack_index >= 0);
|
|
emit_pre(emit, -2);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_MAP_ADD, map_stack_index);
|
|
}
|
|
|
|
static void emit_bc_build_set(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, 1 - n_args);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_BUILD_SET, n_args);
|
|
}
|
|
|
|
static void emit_bc_set_add(emit_t *emit, int set_stack_index) {
|
|
assert(set_stack_index >= 0);
|
|
emit_pre(emit, -1);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_SET_ADD, set_stack_index);
|
|
}
|
|
|
|
static void emit_bc_build_slice(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, 1 - n_args);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_BUILD_SLICE, n_args);
|
|
}
|
|
|
|
static void emit_bc_unpack_sequence(emit_t *emit, int n_args) {
|
|
assert(n_args >= 0);
|
|
emit_pre(emit, -1 + n_args);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_UNPACK_SEQUENCE, n_args);
|
|
}
|
|
|
|
static void emit_bc_unpack_ex(emit_t *emit, int n_left, int n_right) {
|
|
assert(n_left >=0 && n_right >= 0);
|
|
emit_pre(emit, -1 + n_left + n_right + 1);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_UNPACK_EX, n_left | (n_right << 8));
|
|
}
|
|
|
|
static void emit_bc_make_function(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
|
|
assert(n_default_params == 0 && n_dict_params == 0);
|
|
emit_pre(emit, 1);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_MAKE_FUNCTION, scope->unique_code_id);
|
|
}
|
|
|
|
static void emit_bc_make_closure(emit_t *emit, scope_t *scope, int n_dict_params, int n_default_params) {
|
|
assert(n_default_params == 0 && n_dict_params == 0);
|
|
emit_pre(emit, 0);
|
|
emit_write_byte_code_byte_uint(emit, MP_BC_MAKE_CLOSURE, scope->unique_code_id);
|
|
}
|
|
|
|
static void emit_bc_call_function(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
|
|
int s = 0;
|
|
if (have_star_arg) {
|
|
s += 1;
|
|
}
|
|
if (have_dbl_star_arg) {
|
|
s += 1;
|
|
}
|
|
emit_pre(emit, -n_positional - 2 * n_keyword - s);
|
|
int op;
|
|
if (have_star_arg) {
|
|
if (have_dbl_star_arg) {
|
|
op = MP_BC_CALL_FUNCTION_VAR_KW;
|
|
} else {
|
|
op = MP_BC_CALL_FUNCTION_VAR;
|
|
}
|
|
} else {
|
|
if (have_dbl_star_arg) {
|
|
op = MP_BC_CALL_FUNCTION_KW;
|
|
} else {
|
|
op = MP_BC_CALL_FUNCTION;
|
|
}
|
|
}
|
|
emit_write_byte_code_byte_uint(emit, op, (n_keyword << 8) | n_positional); // TODO make it 2 separate uints
|
|
}
|
|
|
|
static void emit_bc_call_method(emit_t *emit, int n_positional, int n_keyword, bool have_star_arg, bool have_dbl_star_arg) {
|
|
int s = 0;
|
|
if (have_star_arg) {
|
|
s += 1;
|
|
}
|
|
if (have_dbl_star_arg) {
|
|
s += 1;
|
|
}
|
|
emit_pre(emit, -n_positional - 2 * n_keyword - s);
|
|
int op;
|
|
if (have_star_arg) {
|
|
if (have_dbl_star_arg) {
|
|
op = MP_BC_CALL_METHOD_VAR_KW;
|
|
} else {
|
|
op = MP_BC_CALL_METHOD_VAR;
|
|
}
|
|
} else {
|
|
if (have_dbl_star_arg) {
|
|
op = MP_BC_CALL_METHOD_KW;
|
|
} else {
|
|
op = MP_BC_CALL_METHOD;
|
|
}
|
|
}
|
|
emit_write_byte_code_byte_uint(emit, op, (n_keyword << 8) | n_positional); // TODO make it 2 separate uints
|
|
}
|
|
|
|
static void emit_bc_return_value(emit_t *emit) {
|
|
emit_pre(emit, -1);
|
|
emit->last_emit_was_return_value = true;
|
|
emit_write_byte_code_byte(emit, MP_BC_RETURN_VALUE);
|
|
}
|
|
|
|
static void emit_bc_raise_varargs(emit_t *emit, int n_args) {
|
|
assert(0 <= n_args && n_args <= 2);
|
|
emit_pre(emit, -n_args);
|
|
emit_write_byte_code_byte_byte(emit, MP_BC_RAISE_VARARGS, n_args);
|
|
}
|
|
|
|
static void emit_bc_yield_value(emit_t *emit) {
|
|
emit_pre(emit, 0);
|
|
if (emit->pass == PASS_2) {
|
|
emit->scope->flags |= SCOPE_FLAG_GENERATOR;
|
|
}
|
|
emit_write_byte_code_byte(emit, MP_BC_YIELD_VALUE);
|
|
}
|
|
|
|
static void emit_bc_yield_from(emit_t *emit) {
|
|
emit_pre(emit, -1);
|
|
if (emit->pass == PASS_2) {
|
|
emit->scope->flags |= SCOPE_FLAG_GENERATOR;
|
|
}
|
|
emit_write_byte_code_byte(emit, MP_BC_YIELD_FROM);
|
|
}
|
|
|
|
const emit_method_table_t emit_bc_method_table = {
|
|
emit_bc_set_native_types,
|
|
emit_bc_start_pass,
|
|
emit_bc_end_pass,
|
|
emit_bc_last_emit_was_return_value,
|
|
emit_bc_get_stack_size,
|
|
emit_bc_set_stack_size,
|
|
emit_bc_set_source_line,
|
|
|
|
emit_bc_load_id,
|
|
emit_bc_store_id,
|
|
emit_bc_delete_id,
|
|
|
|
emit_bc_label_assign,
|
|
emit_bc_import_name,
|
|
emit_bc_import_from,
|
|
emit_bc_import_star,
|
|
emit_bc_load_const_tok,
|
|
emit_bc_load_const_small_int,
|
|
emit_bc_load_const_int,
|
|
emit_bc_load_const_dec,
|
|
emit_bc_load_const_id,
|
|
emit_bc_load_const_str,
|
|
emit_bc_load_const_verbatim_str,
|
|
emit_bc_load_fast,
|
|
emit_bc_load_deref,
|
|
emit_bc_load_closure,
|
|
emit_bc_load_name,
|
|
emit_bc_load_global,
|
|
emit_bc_load_attr,
|
|
emit_bc_load_method,
|
|
emit_bc_load_build_class,
|
|
emit_bc_store_fast,
|
|
emit_bc_store_deref,
|
|
emit_bc_store_name,
|
|
emit_bc_store_global,
|
|
emit_bc_store_attr,
|
|
emit_bc_store_subscr,
|
|
emit_bc_store_locals,
|
|
emit_bc_delete_fast,
|
|
emit_bc_delete_deref,
|
|
emit_bc_delete_name,
|
|
emit_bc_delete_global,
|
|
emit_bc_delete_attr,
|
|
emit_bc_delete_subscr,
|
|
emit_bc_dup_top,
|
|
emit_bc_dup_top_two,
|
|
emit_bc_pop_top,
|
|
emit_bc_rot_two,
|
|
emit_bc_rot_three,
|
|
emit_bc_jump,
|
|
emit_bc_pop_jump_if_true,
|
|
emit_bc_pop_jump_if_false,
|
|
emit_bc_jump_if_true_or_pop,
|
|
emit_bc_jump_if_false_or_pop,
|
|
emit_bc_setup_loop,
|
|
emit_bc_break_loop,
|
|
emit_bc_continue_loop,
|
|
emit_bc_setup_with,
|
|
emit_bc_with_cleanup,
|
|
emit_bc_setup_except,
|
|
emit_bc_setup_finally,
|
|
emit_bc_end_finally,
|
|
emit_bc_get_iter,
|
|
emit_bc_for_iter,
|
|
emit_bc_for_iter_end,
|
|
emit_bc_pop_block,
|
|
emit_bc_pop_except,
|
|
emit_bc_unary_op,
|
|
emit_bc_binary_op,
|
|
emit_bc_build_tuple,
|
|
emit_bc_build_list,
|
|
emit_bc_list_append,
|
|
emit_bc_build_map,
|
|
emit_bc_store_map,
|
|
emit_bc_map_add,
|
|
emit_bc_build_set,
|
|
emit_bc_set_add,
|
|
emit_bc_build_slice,
|
|
emit_bc_unpack_sequence,
|
|
emit_bc_unpack_ex,
|
|
emit_bc_make_function,
|
|
emit_bc_make_closure,
|
|
emit_bc_call_function,
|
|
emit_bc_call_method,
|
|
emit_bc_return_value,
|
|
emit_bc_raise_varargs,
|
|
emit_bc_yield_value,
|
|
emit_bc_yield_from,
|
|
};
|