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/*
* Copyright 2011, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_ // NOLINT
#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_
#include "clang/AST/StmtVisitor.h"
#include "slang_assert.h"
#include "clang/AST/ASTContext.h"
namespace clang {
class Diagnostic;
class Expr;
class Stmt;
}
namespace slang {
class RSASTReplace : public clang::StmtVisitor<RSASTReplace> {
private:
clang::ASTContext &C;
clang::Stmt *mOuterStmt;
clang::Stmt *mOldStmt;
clang::Stmt *mNewStmt;
clang::Expr *mOldExpr;
clang::Expr *mNewExpr;
inline bool matchesExpr(const clang::Expr *E) const {
bool retVal = mOldExpr && (mOldExpr == E);
if (retVal) {
slangAssert(mNewExpr &&
"Cannot replace an expression if we don't have a new expression");
}
return retVal;
}
inline bool matchesStmt(const clang::Stmt *S) const {
slangAssert(mOldStmt);
return mOldStmt == S;
}
void ReplaceInCompoundStmt(clang::CompoundStmt *CS);
public:
explicit RSASTReplace(clang::ASTContext &Con)
: C(Con),
mOuterStmt(nullptr),
mOldStmt(nullptr),
mNewStmt(nullptr),
mOldExpr(nullptr),
mNewExpr(nullptr) {
}
void VisitStmt(clang::Stmt *S);
void VisitCompoundStmt(clang::CompoundStmt *CS);
void VisitCaseStmt(clang::CaseStmt *CS);
void VisitDefaultStmt(clang::DefaultStmt *DS);
void VisitDoStmt(clang::DoStmt *DS);
void VisitForStmt(clang::ForStmt *FS);
void VisitIfStmt(clang::IfStmt *IS);
void VisitSwitchCase(clang::SwitchCase *SC);
void VisitSwitchStmt(clang::SwitchStmt *SS);
void VisitWhileStmt(clang::WhileStmt *WS);
// Replace all instances of OldStmt in OuterStmt with NewStmt.
void ReplaceStmt(
clang::Stmt *OuterStmt,
clang::Stmt *OldStmt,
clang::Stmt *NewStmt);
};
} // namespace slang
#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_ NOLINT
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