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