2bf7c09222
Needed to reinstate 2 delete opcodes, to specifically check that a local is not deleted twice.
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
#include <unistd.h>
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#include <stdint.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 "qstr.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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#define EMIT(fun, ...) (emit_method_table->fun(emit, __VA_ARGS__))
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void emit_common_load_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr) {
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// assumes pass is greater than 1, ie that all identifiers are defined in the scope
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id_info_t *id = scope_find(scope, qstr);
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assert(id != NULL); // TODO can this ever fail?
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// call the emit backend with the correct code
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if (id == NULL || id->kind == ID_INFO_KIND_GLOBAL_IMPLICIT) {
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EMIT(load_name, qstr);
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} else if (id->kind == ID_INFO_KIND_GLOBAL_EXPLICIT) {
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EMIT(load_global, qstr);
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} else if (id->kind == ID_INFO_KIND_LOCAL) {
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EMIT(load_fast, qstr, id->flags, id->local_num);
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} else if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
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EMIT(load_deref, qstr, id->local_num);
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} else {
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assert(0);
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}
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}
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void emit_common_store_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr) {
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// assumes pass is greater than 1, ie that all identifiers are defined in the scope
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id_info_t *id = scope_find(scope, qstr);
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assert(id != NULL); // TODO can this ever fail?
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// call the emit backend with the correct code
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if (id == NULL || id->kind == ID_INFO_KIND_GLOBAL_IMPLICIT) {
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EMIT(store_name, qstr);
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} else if (id->kind == ID_INFO_KIND_GLOBAL_EXPLICIT) {
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EMIT(store_global, qstr);
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} else if (id->kind == ID_INFO_KIND_LOCAL) {
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EMIT(store_fast, qstr, id->local_num);
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} else if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
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EMIT(store_deref, qstr, id->local_num);
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} else {
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assert(0);
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}
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}
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void emit_common_delete_id(emit_t *emit, const emit_method_table_t *emit_method_table, scope_t *scope, qstr qstr) {
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// assumes pass is greater than 1, ie that all identifiers are defined in the scope
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id_info_t *id = scope_find(scope, qstr);
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assert(id != NULL); // TODO can this ever fail?
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// call the emit backend with the correct code
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if (id == NULL || id->kind == ID_INFO_KIND_GLOBAL_IMPLICIT) {
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EMIT(delete_name, qstr);
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} else if (id->kind == ID_INFO_KIND_GLOBAL_EXPLICIT) {
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EMIT(delete_global, qstr);
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} else if (id->kind == ID_INFO_KIND_LOCAL) {
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EMIT(delete_fast, qstr, id->local_num);
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} else if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
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EMIT(delete_deref, qstr, id->local_num);
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} else {
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assert(0);
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}
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}
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