forked from OSchip/llvm-project
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
//===-- Transforms.h - Tranformations to ARC mode ---------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_ARCMIGRATE_TRANSFORMS_H
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#define LLVM_CLANG_LIB_ARCMIGRATE_TRANSFORMS_H
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "llvm/ADT/DenseSet.h"
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namespace clang {
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class Decl;
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class Stmt;
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class BlockDecl;
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class ObjCMethodDecl;
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class FunctionDecl;
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namespace arcmt {
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class MigrationPass;
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namespace trans {
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//===----------------------------------------------------------------------===//
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// Transformations.
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//===----------------------------------------------------------------------===//
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void rewriteAutoreleasePool(MigrationPass &pass);
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void rewriteUnbridgedCasts(MigrationPass &pass);
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void makeAssignARCSafe(MigrationPass &pass);
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void removeRetainReleaseDealloc(MigrationPass &pass);
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void removeZeroOutPropsInDealloc(MigrationPass &pass);
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void rewriteProperties(MigrationPass &pass);
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void rewriteBlockObjCVariable(MigrationPass &pass);
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void rewriteUnusedInitDelegate(MigrationPass &pass);
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void removeEmptyStatementsAndDealloc(MigrationPass &pass);
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//===----------------------------------------------------------------------===//
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// Helpers.
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//===----------------------------------------------------------------------===//
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/// \brief Determine whether we can add weak to the given type.
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bool canApplyWeak(ASTContext &Ctx, QualType type);
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/// \brief 'Loc' is the end of a statement range. This returns the location
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/// immediately after the semicolon following the statement.
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/// If no semicolon is found or the location is inside a macro, the returned
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/// source location will be invalid.
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SourceLocation findLocationAfterSemi(SourceLocation loc, ASTContext &Ctx);
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bool hasSideEffects(Expr *E, ASTContext &Ctx);
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template <typename BODY_TRANS>
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class BodyTransform : public RecursiveASTVisitor<BodyTransform<BODY_TRANS> > {
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MigrationPass &Pass;
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public:
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BodyTransform(MigrationPass &pass) : Pass(pass) { }
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bool TraverseStmt(Stmt *rootS) {
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BODY_TRANS(Pass).transformBody(rootS);
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return true;
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}
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};
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typedef llvm::DenseSet<Expr *> ExprSet;
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void clearRefsIn(Stmt *S, ExprSet &refs);
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template <typename iterator>
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void clearRefsIn(iterator begin, iterator end, ExprSet &refs) {
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for (; begin != end; ++begin)
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clearRefsIn(*begin, refs);
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}
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void collectRefs(ValueDecl *D, Stmt *S, ExprSet &refs);
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void collectRemovables(Stmt *S, ExprSet &exprs);
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} // end namespace trans
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} // end namespace arcmt
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} // end namespace clang
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#endif
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