Avi Drissman | dfd88085 | 2022-09-15 20:11:09 | [diff] [blame] | 1 | // Copyright 2015 The Chromium Authors |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef TOOLS_BLINK_GC_PLUGIN_CHECK_TRACE_VISITOR_H_ |
| 6 | #define TOOLS_BLINK_GC_PLUGIN_CHECK_TRACE_VISITOR_H_ |
| 7 | |
| 8 | #include <string> |
| 9 | |
| 10 | #include "RecordInfo.h" |
| 11 | #include "clang/AST/AST.h" |
| 12 | #include "clang/AST/RecursiveASTVisitor.h" |
| 13 | |
| 14 | class RecordCache; |
| 15 | class RecordInfo; |
| 16 | |
| 17 | // This visitor checks a tracing method by traversing its body. |
| 18 | // - A member field is considered traced if it is referenced in the body. |
| 19 | // - A base is traced if a base-qualified call to a trace method is found. |
| 20 | class CheckTraceVisitor : public clang::RecursiveASTVisitor<CheckTraceVisitor> { |
| 21 | public: |
| 22 | CheckTraceVisitor(clang::CXXMethodDecl* trace, |
| 23 | RecordInfo* info, |
| 24 | RecordCache* cache); |
| 25 | |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 26 | bool VisitMemberExpr(clang::MemberExpr* member); |
| 27 | bool VisitCallExpr(clang::CallExpr* call); |
Omer Katz | a7499cad | 2024-02-02 08:02:48 | [diff] [blame] | 28 | bool VisitStmt(clang::Stmt* stmt); |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 29 | |
| 30 | private: |
| 31 | bool IsTraceCallName(const std::string& name); |
| 32 | |
Hans Wennborg | 96a1e29a | 2024-05-27 20:43:06 | [diff] [blame] | 33 | clang::CXXRecordDecl* GetDependentTemplatedDecl( |
| 34 | clang::DependentScopeDeclRefExpr* expr); |
| 35 | |
| 36 | void CheckDependentScopeDeclRefExpr(clang::CallExpr* call, |
| 37 | clang::DependentScopeDeclRefExpr* expr); |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 38 | bool CheckTraceBaseCall(clang::CallExpr* call); |
| 39 | bool CheckTraceFieldMemberCall(clang::CXXMemberCallExpr* call); |
| 40 | bool CheckTraceFieldCall(const std::string& name, |
| 41 | clang::CXXRecordDecl* callee, |
Omer Katz | 6a78976 | 2025-03-19 18:51:27 | [diff] [blame] | 42 | clang::Expr* arg1, |
| 43 | clang::Expr* arg2); |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 44 | bool CheckRegisterWeakMembers(clang::CXXMemberCallExpr* call); |
Keishi Hattori | be83e30 | 2020-02-03 05:35:22 | [diff] [blame] | 45 | bool CheckImplicitCastExpr(clang::CallExpr* call, |
| 46 | clang::ImplicitCastExpr* expr); |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 47 | |
| 48 | bool IsWeakCallback() const; |
| 49 | |
| 50 | void MarkTraced(RecordInfo::Fields::iterator it); |
Omer Katz | a52d7b7 | 2025-01-23 08:59:58 | [diff] [blame] | 51 | void MarkTracedIfNeeded(RecordInfo::Fields::iterator it); |
| 52 | void FoundField(clang::FieldDecl* field, bool is_trace_if_needed); |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 53 | void MarkAllWeakMembersTraced(); |
| 54 | |
| 55 | clang::CXXMethodDecl* trace_; |
| 56 | RecordInfo* info_; |
| 57 | RecordCache* cache_; |
yutak | 414be58 | 2015-09-17 09:34:13 | [diff] [blame] | 58 | }; |
| 59 | |
| 60 | #endif // TOOLS_BLINK_GC_PLUGIN_CHECK_TRACE_VISITOR_H_ |