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80 lines
2.4 KiB
80 lines
2.4 KiB
7 months ago
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/*
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* Copyright 2012, 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_CHECK_AST_H_ // NOLINT
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#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_CHECK_AST_H_
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#include "slang_assert.h"
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#include "slang_rs_context.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/StmtVisitor.h"
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namespace slang {
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// This class is designed to walk a Renderscript/Filterscript AST looking for
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// violations. Examples of violations for FS are pointer declarations and
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// casts (i.e. no pointers allowed in FS whatsoever).
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class RSCheckAST : public clang::StmtVisitor<RSCheckAST> {
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private:
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slang::RSContext *Context;
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clang::ASTContext &C;
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clang::SourceManager &mSM;
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bool mValid;
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unsigned int mTargetAPI;
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bool mIsFilterscript;
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bool mInKernel;
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/// @brief Emit warnings for inapproriate uses of rsSetElementAt
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///
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/// We warn in case generic rsSetElementAt() is used even though the user
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/// could have used a typed rsSetElementAt_<type>() call. Typed calls
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/// allow more aggressive optimization (e.g. due to better alias analysis
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/// results). Hence, we want to steer the users to use them.
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void WarnOnSetElementAt(clang::CallExpr*);
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public:
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explicit RSCheckAST(RSContext *Con, unsigned int TargetAPI,
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bool IsFilterscript)
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: Context(Con),
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C(Con->getASTContext()),
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mSM(C.getSourceManager()),
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mValid(true),
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mTargetAPI(TargetAPI),
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mIsFilterscript(IsFilterscript),
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mInKernel(false) {
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}
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void VisitStmt(clang::Stmt *S);
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void VisitCallExpr(clang::CallExpr *CE);
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void VisitCastExpr(clang::CastExpr *CE);
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void VisitExpr(clang::Expr *E);
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void VisitDeclStmt(clang::DeclStmt *DS);
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void ValidateFunctionDecl(clang::FunctionDecl *FD);
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void ValidateVarDecl(clang::VarDecl *VD);
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bool Validate();
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};
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} // namespace slang
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#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_CHECK_AST_H_ NOLINT
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