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refactor(irgen): 规范采用visitor生成

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This commit is contained in:
jing
2026-03-18 02:07:34 +08:00
parent 7d4d60c546
commit dfa71bc0d7
8 changed files with 297 additions and 130 deletions
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31
include/irgen/IRGen.h
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@@ -3,10 +3,12 @@
#pragma once
#include <any>
#include <memory>
#include <string>
#include <unordered_map>
#include "SysYBaseVisitor.h"
#include "SysYParser.h"
#include "ir/IR.h"
#include "sem/Sema.h"
@@ -18,22 +20,31 @@ class IRBuilder;
class Value;
}
class IRGenImpl {
class IRGenImpl final : public SysYBaseVisitor {
public:
IRGenImpl(ir::Module& module, const SemanticContext& sema);
void Gen(SysYParser::CompUnitContext& cu);
std::any visitCompUnit(SysYParser::CompUnitContext* ctx) override;
std::any visitFuncDef(SysYParser::FuncDefContext* ctx) override;
std::any visitBlockStmt(SysYParser::BlockStmtContext* ctx) override;
std::any visitBlockItem(SysYParser::BlockItemContext* ctx) override;
std::any visitDecl(SysYParser::DeclContext* ctx) override;
std::any visitStmt(SysYParser::StmtContext* ctx) override;
std::any visitVarDef(SysYParser::VarDefContext* ctx) override;
std::any visitReturnStmt(SysYParser::ReturnStmtContext* ctx) override;
std::any visitParenExp(SysYParser::ParenExpContext* ctx) override;
std::any visitNumberExp(SysYParser::NumberExpContext* ctx) override;
std::any visitVarExp(SysYParser::VarExpContext* ctx) override;
std::any visitAdditiveExp(SysYParser::AdditiveExpContext* ctx) override;
private:
void GenFuncDef(SysYParser::FuncDefContext& func);
void GenBlock(SysYParser::BlockStmtContext& block);
bool GenBlockItem(SysYParser::BlockItemContext& item);
void GenDecl(SysYParser::DeclContext& decl);
bool GenStmt(SysYParser::StmtContext& stmt);
void GenVarDef(SysYParser::VarDefContext& decl);
void GenReturnStmt(SysYParser::ReturnStmtContext& ret);
enum class BlockFlow {
Continue,
Terminated,
};
ir::Value* GenExpr(SysYParser::ExpContext& expr);
BlockFlow VisitBlockItemResult(SysYParser::BlockItemContext& item);
ir::Value* EvalExpr(SysYParser::ExpContext& expr);
ir::Module& module_;
const SemanticContext& sema_;