Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_ // NOLINT |
| 18 | #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_ |
| 19 | |
| 20 | #include "clang/AST/StmtVisitor.h" |
| 21 | |
| 22 | #include "slang_assert.h" |
| 23 | #include "clang/AST/ASTContext.h" |
| 24 | |
| 25 | namespace clang { |
| 26 | class Diagnostic; |
| 27 | class Expr; |
| 28 | class Stmt; |
| 29 | } |
| 30 | |
| 31 | namespace slang { |
| 32 | |
| 33 | class RSASTReplace : public clang::StmtVisitor<RSASTReplace> { |
| 34 | private: |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 35 | clang::ASTContext &C; |
| 36 | clang::Stmt *mOuterStmt; |
| 37 | clang::Stmt *mOldStmt; |
| 38 | clang::Stmt *mNewStmt; |
| 39 | clang::Expr *mOldExpr; |
| 40 | clang::Expr *mNewExpr; |
| 41 | |
| 42 | inline bool matchesExpr(const clang::Expr *E) const { |
| 43 | bool retVal = mOldExpr && (mOldExpr == E); |
| 44 | if (retVal) { |
| 45 | slangAssert(mNewExpr && |
| 46 | "Cannot replace an expression if we don't have a new expression"); |
| 47 | } |
| 48 | return retVal; |
| 49 | } |
| 50 | |
| 51 | inline bool matchesStmt(const clang::Stmt *S) const { |
| 52 | slangAssert(mOldStmt); |
| 53 | return mOldStmt == S; |
| 54 | } |
| 55 | |
| 56 | void ReplaceInCompoundStmt(clang::CompoundStmt *CS); |
| 57 | |
| 58 | public: |
| 59 | explicit RSASTReplace(clang::ASTContext &Con) |
| 60 | : C(Con), |
Chris Wailes | 5abbe0e | 2014-08-12 15:58:29 -0700 | [diff] [blame] | 61 | mOuterStmt(nullptr), |
| 62 | mOldStmt(nullptr), |
| 63 | mNewStmt(nullptr), |
| 64 | mOldExpr(nullptr), |
| 65 | mNewExpr(nullptr) { |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | void VisitStmt(clang::Stmt *S); |
| 69 | void VisitCompoundStmt(clang::CompoundStmt *CS); |
| 70 | void VisitCaseStmt(clang::CaseStmt *CS); |
| 71 | void VisitDefaultStmt(clang::DefaultStmt *DS); |
| 72 | void VisitDoStmt(clang::DoStmt *DS); |
| 73 | void VisitForStmt(clang::ForStmt *FS); |
| 74 | void VisitIfStmt(clang::IfStmt *IS); |
| 75 | void VisitSwitchCase(clang::SwitchCase *SC); |
| 76 | void VisitSwitchStmt(clang::SwitchStmt *SS); |
| 77 | void VisitWhileStmt(clang::WhileStmt *WS); |
| 78 | |
| 79 | // Replace all instances of OldStmt in OuterStmt with NewStmt. |
| 80 | void ReplaceStmt( |
| 81 | clang::Stmt *OuterStmt, |
| 82 | clang::Stmt *OldStmt, |
| 83 | clang::Stmt *NewStmt); |
| 84 | }; |
| 85 | |
| 86 | } // namespace slang |
| 87 | |
| 88 | #endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_AST_REPLACE_H_ NOLINT |