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feat add func call and rewrite codes

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This commit is contained in:
ZZY
2025-03-07 12:29:53 +08:00
parent 09299e339c
commit 95bf44eb3f
37 changed files with 3369 additions and 1063 deletions
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24
ccompiler/frontend/parser/symtab/symtab.c
View File

@ -3,25 +3,25 @@
#include "scope.h"
#include "symtab.h"
typedef struct SymbolTable SymbolTable;
typedef symtab_t symtab_t;
typedef struct Scope Scope;
void init_symtab(SymbolTable* symtab) {
void init_symtab(symtab_t* symtab) {
symtab->global_scope = scope_create(NULL);
symtab->cur_scope = symtab->global_scope;
}
void del_symtab(SymbolTable* symtab) {
void del_symtab(symtab_t* symtab) {
scope_destroy(symtab->global_scope);
}
void symtab_enter_scope(SymbolTable* symtab) {
void symtab_enter_scope(symtab_t* symtab) {
struct Scope* scope = scope_create(symtab->cur_scope);
scope->base_offset = symtab->cur_scope->base_offset + symtab->cur_scope->cur_offset;
symtab->cur_scope = scope;
}
void symtab_leave_scope(SymbolTable* symtab) {
void symtab_leave_scope(symtab_t* symtab) {
Scope * scope = symtab->cur_scope;
if (scope == NULL) {
error("cannot leave NULL scope or global scope");
@ -30,16 +30,20 @@ void symtab_leave_scope(SymbolTable* symtab) {
scope_destroy(scope);
}
void symtab_add_symbol(SymbolTable* symtab, const char* name, void* ast_node) {
void* symtab_add_symbol(symtab_t* symtab, const char* name, void* ast_node, int can_duplicate) {
struct Scope* scope = symtab->cur_scope;
if (scope_lookup_current(scope, name) != NULL) {
// TODO WARNING
// return NULL;
void* node = scope_lookup_current(scope, name);
if (node != NULL) {
if (!can_duplicate) {
error("duplicate symbol %s", name);
}
return node;
}
scope_insert(scope, name, ast_node);
return node;
}
void* symtab_lookup_symbol(SymbolTable* symtab, const char* name) {
void* symtab_lookup_symbol(symtab_t* symtab, const char* name) {
return scope_lookup(symtab->cur_scope, name);
}

16
ccompiler/frontend/parser/symtab/symtab.h
View File

@ -2,17 +2,17 @@
#ifndef __SYMTAB_H__
#define __SYMTAB_H__
struct SymbolTable {
typedef struct symtab {
struct Scope* cur_scope;
struct Scope* global_scope;
};
} symtab_t;
void init_symtab(struct SymbolTable* symtab);
void del_symtab(struct SymbolTable* symtab);
void init_symtab(symtab_t* symtab);
void del_symtab(symtab_t* symtab);
void symtab_enter_scope(struct SymbolTable* symtab);
void symtab_leave_scope(struct SymbolTable* symtab);
void symtab_add_symbol(struct SymbolTable* symtab, const char* name, void* ast_node);
void* symtab_lookup_symbol(struct SymbolTable* symtab, const char* name);
void symtab_enter_scope(symtab_t* symtab);
void symtab_leave_scope(symtab_t* symtab);
void* symtab_add_symbol(symtab_t* symtab, const char* name, void* ast_node, int can_duplicate);
void* symtab_lookup_symbol(symtab_t* symtab, const char* name);
#endif