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StmtNode.h
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187 lines (127 loc) · 4.63 KB
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#pragma once
#include "AST/Node.h"
class VarDeclNode;
class FunctionDeclNode;
class ExprNode;
/// 语句节点
class StmtNode : public Node {
public:
~StmtNode() override = default;
};
/// 表达式语句节点
class ExprStmtNode final : public StmtNode {
public:
explicit ExprStmtNode(const SharedPtr<ExprNode> &expr);
~ExprStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<ExprNode> expr = nullptr;
};
/// 复合语句节点
class CompoundStmtNode final : public StmtNode {
public:
explicit CompoundStmtNode(const SharedPtrVector<StmtNode> &childStmts);
~CompoundStmtNode() override = default;
[[nodiscard]] virtual bool isEmpty() const;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtrVector<StmtNode> childStmts;
SharedPtr<Scope> internalScope = nullptr;
};
/// 变量声明语句节点
class VarDeclStmtNode final : public StmtNode {
public:
~VarDeclStmtNode() override = default;
virtual void pushVarDecl(const SharedPtr<VarDeclNode> &varDecl);
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtrVector<VarDeclNode> childVarDecls;
};
/// 函数声明语句节点
class FunctionDeclStmtNode final : public StmtNode {
public:
explicit FunctionDeclStmtNode(const SharedPtr<FunctionDeclNode> &childFunctionDecl);
~FunctionDeclStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<FunctionDeclNode> childFunctionDecl = nullptr;
};
/// if语句节点
class IfStmtNode final : public StmtNode {
public:
IfStmtNode(
const SharedPtr<ExprNode> &condition,
const SharedPtr<StmtNode> &thenStmt,
const SharedPtr<StmtNode> &elseStmt
);
~IfStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<ExprNode> condition = nullptr;
SharedPtr<StmtNode> thenBody = nullptr;
SharedPtr<StmtNode> elseBody = nullptr;
LLVMBasicBlock *thenBB = nullptr;
LLVMBasicBlock *elseBB = nullptr;
LLVMBasicBlock *endBB = nullptr;
};
/// while语句节点
class WhileStmtNode final : public StmtNode {
public:
WhileStmtNode(const SharedPtr<ExprNode> &condition, const SharedPtr<StmtNode> &body);
~WhileStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<ExprNode> condition = nullptr;
SharedPtr<StmtNode> body = nullptr;
LLVMBasicBlock *condBB = nullptr;
LLVMBasicBlock *bodyBB = nullptr;
LLVMBasicBlock *endBB = nullptr;
};
/// for语句节点
class ForStmtNode final : public StmtNode {
public:
ForStmtNode(
const SharedPtr<VarDeclStmtNode> &forInitVarDecls,
const SharedPtrVector<ExprNode> &forInitExprList,
const SharedPtr<ExprNode> &forCondition,
const SharedPtrVector<ExprNode> &forUpdate,
const SharedPtr<StmtNode> &body
);
~ForStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<VarDeclStmtNode> initVarStmt = nullptr;
SharedPtrVector<ExprNode> initExprs;
SharedPtr<ExprNode> condition = nullptr;
SharedPtrVector<ExprNode> updates;
SharedPtr<StmtNode> body = nullptr;
SharedPtr<Scope> internalScope = nullptr;
LLVMBasicBlock *condBB = nullptr;
LLVMBasicBlock *bodyBB = nullptr;
LLVMBasicBlock *updateBB = nullptr;
LLVMBasicBlock *endBB = nullptr;
};
/// continue语句节点
class ContinueStmtNode final : public StmtNode {
public:
~ContinueStmtNode() override = default;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<StmtNode> refIterationStmt = nullptr;
};
/// break语句节点
class BreakStmtNode final : public StmtNode {
public:
~BreakStmtNode() override = default;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<StmtNode> refIterationStmt = nullptr;
};
/// return语句节点
class ReturnStmtNode final : public StmtNode {
public:
explicit ReturnStmtNode(const SharedPtr<ExprNode> &argument);
~ReturnStmtNode() override = default;
void bindChildrenInversely() override;
void accept(const SharedPtr<ASTVisitor> &visitor) override;
SharedPtr<ExprNode> returnExpr = nullptr;
SharedPtr<FunctionDeclNode> refFuncDecl = nullptr;
};