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feat(ast): 将AST上下文重构为模块并添加字符串池支持

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- 将scc_ast_ctx重命名为scc_ast_module以更好地反映其功能
- 添加scc_strpool_t用于统一管理AST节点名称字符串的生命周期
- 实现scc_ast_module_intern函数用于字符串驻留
- 更新所有相关的初始化、销毁和访问函数命名
- 修改内存分配宏以使用新的模块结构

refactor(parser): 更新解析器以使用AST模块和字符串池

- 将解析器中的ast_ctx字段替换为ast_module
- 在创建AST节点时使用新的ast_module参数
- 使用scc_ast_module_intern函数处理标识符和字符串字面量
- 确保所有字符串都被正确驻留到模块的字符串池中

refactor(sema): 更新语义分析器使用AST模块

- 将sema_ctx中的ast_ctx字段替换为ast_module
- 更新语义分析器初始化函数参数

refactor(ast2ir): 更新AST到IR转换器使用AST模块

- 将ast_ctx字段替换为ast_module
- 更新上下文初始化函数参数和实现

fix(cfg): 修复CFG模块中的符号查找错误

- 修正scc_cfg_module_unsafe_get_symbol函数中的边界检查条件

perf(ir): 完善各IR层模块的内存清理机制

- 为HIR模块添加函数和基本块元数据的释放逻辑
- 为MIR和LIR模块完善完整的资源清理和内存释放
- 确保所有分配的元数据结构都能被正确释放

chore(deps): 添加scc_utils依赖到AST库

- 在libs/ast/cbuild.toml中添加对scc_utils的依赖
This commit is contained in:
zzy
2026-05-31 19:56:19 +08:00
parent d2eafa9dc6
commit 8b817da3b6
31 changed files with 409 additions and 179 deletions
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26
libs/parser/src/scc_sema.c
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@@ -31,14 +31,15 @@ static void symtab_add_symbol(scc_sema_symtab_t *sema_symtab,
if (decl->name == nullptr)
return;
// FIXME memory leak
scc_str_t name = scc_str_empty();
gen_symbol_name(decl, &name);
if (scc_str_is_empty(&name)) {
scc_sema_symtab_add_symbol(sema_symtab, decl->name, ast_node_ref);
} else {
scc_sema_symtab_add_symbol(sema_symtab, scc_str_as_cstr(&name),
ast_node_ref);
const char *pooled = scc_strpool_intern(&sema_symtab->name_pool,
scc_str_as_cstr(&name));
scc_sema_symtab_add_symbol(sema_symtab, pooled, ast_node_ref);
scc_str_drop(&name);
}
}
@@ -291,8 +292,8 @@ static scc_ast_qual_type_t *got_type_callback(scc_sema_ctx_t *sema_ctx,
return nullptr;
}
void scc_sema_init(scc_sema_ctx_t *sema_ctx, scc_ast_ctx_t *ast_ctx) {
sema_ctx->ast_ctx = ast_ctx;
void scc_sema_init(scc_sema_ctx_t *sema_ctx, scc_ast_module_t *ast_module) {
sema_ctx->ast_module = ast_module;
scc_sema_symtab_t *sema_symtab = scc_malloc(sizeof(scc_sema_symtab_t));
if (sema_symtab == nullptr) {
LOG_FATAL("out of memory");
@@ -311,25 +312,23 @@ void scc_sema_init(scc_sema_ctx_t *sema_ctx, scc_ast_ctx_t *ast_ctx) {
scc_vec_init(sema_ctx->break_stack);
scc_vec_init(sema_ctx->continue_stack);
// FIXME memory leak
scc_ast_qual_type_t *type = SCC_AST_ALLOC_QUAL_TYPE(sema_ctx->ast_ctx);
scc_ast_type_builtin_init(type, sema_ctx->ast_ctx,
scc_ast_qual_type_t *type = SCC_AST_ALLOC_QUAL_TYPE(sema_ctx->ast_module);
scc_ast_type_builtin_init(type, sema_ctx->ast_module,
SCC_AST_BUILTIN_TYPE_VA_LIST, scc_pos_create());
scc_sema_symtab_add_symbol(sema_symtab, "__scc_builtin_va_list",
&type->base);
scc_ast_decl_t *decl = SCC_AST_ALLOC_DECL(sema_ctx->ast_ctx);
scc_ast_decl_t *decl = SCC_AST_ALLOC_DECL(sema_ctx->ast_module);
scc_ast_decl_val_init(decl, type, "__scc_builtin__", nullptr,
scc_pos_create());
scc_sema_symtab_add_symbol(sema_symtab, "__func__", &decl->base);
scc_ast_qual_type_t *built_func_type =
SCC_AST_ALLOC_QUAL_TYPE(sema_ctx->ast_ctx);
SCC_AST_ALLOC_QUAL_TYPE(sema_ctx->ast_module);
// FIXME hack
built_func_type->base.type = SCC_AST_TYPE_FUNCTION;
scc_ast_decl_t *builin_func = SCC_AST_ALLOC_DECL(sema_ctx->ast_ctx);
scc_ast_decl_t *builin_func = SCC_AST_ALLOC_DECL(sema_ctx->ast_module);
scc_ast_decl_func_init(builin_func, built_func_type, "__scc_builtin_func",
nullptr, scc_pos_create());
scc_sema_symtab_add_symbol(sema_symtab, "__scc_builtin_va_start",
@@ -348,8 +347,9 @@ void scc_sema_drop(scc_sema_ctx_t *sema_ctx) {
scc_vec_free(sema_ctx->break_stack);
scc_vec_free(sema_ctx->continue_stack);
// FIXME drop obj
if (sema_ctx->context) {
scc_sema_symtab_drop(sema_ctx->context);
scc_free(sema_ctx->context);
sema_ctx->context = nullptr;
}
}