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-rw-r--r--compilerplugins/clang/store/referencecasting.cxx195
1 files changed, 0 insertions, 195 deletions
diff --git a/compilerplugins/clang/store/referencecasting.cxx b/compilerplugins/clang/store/referencecasting.cxx
deleted file mode 100644
index ed74b0b6e14a..000000000000
--- a/compilerplugins/clang/store/referencecasting.cxx
+++ /dev/null
@@ -1,195 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * Based on LLVM/Clang.
- *
- * This file is distributed under the University of Illinois Open Source
- * License. See LICENSE.TXT for details.
- *
- */
-
-#include "referencecasting.hxx"
-
-#include <clang/AST/Attr.h>
-#include <iostream>
-
-namespace loplugin
-{
-
-/*
-This is a compile-time checker.
-
-Check for cases where we have
- - two IDL interfaces A and B,
- - B extends A
- - we are converting a Reference<B> to a Reference<A>
-
-Note that it generates the occasional false positive.
-
-Also, it makes clang3.2 crash on about 4 files in the LO codebase.
-I have logged a bug here:
- http://llvm.org/bugs/show_bug.cgi?id=15902
-
-*/
-ReferenceCasting::ReferenceCasting( CompilerInstance& compiler )
- : FilteringPlugin( compiler )
-{
-}
-
-void ReferenceCasting::run()
-{
- TraverseDecl( compiler.getASTContext().getTranslationUnitDecl());
-}
-
-// This:
-// static void example_method()
-// {
-// css::uno::Reference<B> b;
-// css::uno::Reference<A>(b, css::uno::UNO_QUERY);
-// }
-// Compiles to this AST:
-// (CompoundStmt 0x205d430 </noel-extra1/libo-clang/compilerplugins/clang/noel1.cxx:17:1, line:20:1>
-// (DeclStmt 0x20580a8 <line:18:5, col:32>
-// (0x20530e0 "css::uno::Reference<B> refB =
-// (CXXConstructExpr 0x2058078 <col:28> 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>''void(void)')"))
-// (DeclStmt 0x205d418 <line:19:5, col:59>
-// (0x2058310 "css::uno::Reference<A> refA =
-// (CXXConstructExpr 0x205d3d8 <col:28, col:58> 'css::uno::Reference<A>':'class com::sun::star::uno::Reference<class A>''void (const class com::sun::star::uno::BaseReference &, enum com::sun::star::uno::UnoReference_Query)'
-// (ImplicitCastExpr 0x205d3c0 <col:33> 'const class com::sun::star::uno::BaseReference' lvalue <NoOp>
-// (ImplicitCastExpr 0x205d3a0 <col:33> 'class com::sun::star::uno::BaseReference' lvalue <DerivedToBase (BaseReference)>
-// (DeclRefExpr 0x20582a0 <col:33> 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>' lvalue Var 0x20530e0 'refB' 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>')))
-// (DeclRefExpr 0x2058398 <col:39, col:49> 'enum com::sun::star::uno::UnoReference_Query' EnumConstant 0x1831de0 'UNO_QUERY' 'enum com::sun::star::uno::UnoReference_Query'))")))
-//
-//
-// This:
-// static void example_method1(css::uno::Reference<A>)
-// {
-// }
-// static void example_method2()
-// {
-// css::uno::Reference<B> refB;
-// example_method1(css::uno::Reference<A>(refB, css::uno::UNO_QUERY));
-// }
-// Compiles to this AST:
-// static void example_method1(css::uno::Reference<A>) (CompoundStmt 0x2a74ee8 </noel-extra1/libo-clang/compilerplugins/clang/noel1.cxx:17:1, line:18:1>)
-// static void example_method2() (CompoundStmt 0x2a7a650 </noel-extra1/libo-clang/compilerplugins/clang/noel1.cxx:21:1, line:24:1>
-// (DeclStmt 0x2a7a1a8 <line:22:5, col:32>
-// (0x2a751e0 "css::uno::Reference<B> refB =
-// (CXXConstructExpr 0x2a7a178 <col:28> 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>''void(void)')"))
-// (ExprWithCleanups 0x2a7a638 <line:23:5, col:70> 'void'
-// (CallExpr 0x2a7a570 <col:5, col:70> 'void'
-// (ImplicitCastExpr 0x2a7a558 <col:5> 'void (*)(css::uno::Reference<A>)' <FunctionToPointerDecay>
-// (DeclRefExpr 0x2a7a4d8 <col:5> 'void (css::uno::Reference<A>)' lvalue Function 0x2a6ff00 'example_method1' 'void (css::uno::Reference<A>)'))
-// (CXXBindTemporaryExpr 0x2a7a618 <col:21, col:69> 'css::uno::Reference<A>':'class com::sun::star::uno::Reference<class A>' (CXXTemporary 0x2a7a610)
-// (CXXConstructExpr 0x2a7a5d8 <col:21, col:69> 'css::uno::Reference<A>':'class com::sun::star::uno::Reference<class A>''void (const Reference<class A> &)' elidable
-// (MaterializeTemporaryExpr 0x2a7a5c0 <col:21, col:69> 'const Reference<class A>':'const class com::sun::star::uno::Reference<class A>' lvalue
-// (ImplicitCastExpr 0x2a7a5a8 <col:21, col:69> 'const Reference<class A>':'const class com::sun::star::uno::Reference<class A>' <NoOp>
-// (CXXBindTemporaryExpr 0x2a7a4b8 <col:21, col:69> 'css::uno::Reference<A>':'class com::sun::star::uno::Reference<class A>' (CXXTemporary 0x2a7a4b0)
-// (CXXTemporaryObjectExpr 0x2a7a460 <col:21, col:69> 'css::uno::Reference<A>':'class com::sun::star::uno::Reference<class A>''void (const class com::sun::star::uno::BaseReference &, enum com::sun::star::uno::UnoReference_Query)'
-// (ImplicitCastExpr 0x2a7a448 <col:44> 'const class com::sun::star::uno::BaseReference' lvalue <NoOp>
-// (ImplicitCastExpr 0x2a7a428 <col:44> 'class com::sun::star::uno::BaseReference' lvalue <DerivedToBase (BaseReference)>
-// (DeclRefExpr 0x2a7a340 <col:44> 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>' lvalue Var 0x2a751e0 'refB' 'css::uno::Reference<B>':'class com::sun::star::uno::Reference<class B>')))
-// (DeclRefExpr 0x2a7a398 <col:50, col:60> 'enum com::sun::star::uno::UnoReference_Query' EnumConstant 0x224ee20 'UNO_QUERY' 'enum com::sun::star::uno::UnoReference_Query'))))))))))
-
-static const Type* extractTemplateType(Expr* cce);
-
-bool ReferenceCasting::VisitCXXConstructExpr( CXXConstructExpr* cce )
-{
- // don't bother processing anything in the Reference.h file. Makes my life easier when debugging this.
- if( StringRef(compiler.getSourceManager().getPresumedLoc( cce->getSourceRange().getBegin() )).find( "Reference.h" ) != StringRef::npos )
- return true;
-
- // look for calls to the Reference<T>(x,UNO_something) constructor
- if( cce->getConstructor()->getNameInfo().getName().getAsString() != "Reference" )
- return true;
-
- if( cce->getNumArgs() != 2 )
- return true;
-
- // extract the type parameter passed to the template
- const Type * templateParamType = extractTemplateType(cce);
- if ( !templateParamType )
- return true;
-
- // extract the type of the first parameter passed to the constructor
- Expr* constructorArg0 = cce->getArg(0);
- if( !constructorArg0 )
- return true;
-
- // ignore the Reference(XInterface*,...) constructor
- if( constructorArg0->getType()->isPointerType() )
- return true;
-
- // drill down the expression tree till we hit the bottom
- DeclRefExpr* constructorSubArg2;
- Expr* constructorArg0SubExpr = constructorArg0;
- for(;;)
- {
- // if we've hit the member expression we want, break
- constructorSubArg2 = dyn_cast<DeclRefExpr>( constructorArg0SubExpr );
- if( constructorSubArg2 )
- break;
- CastExpr* tmp1 = dyn_cast<CastExpr>( constructorArg0SubExpr );
- if( tmp1 ) {
- constructorArg0SubExpr = tmp1->getSubExpr();
- continue;
- }
- MaterializeTemporaryExpr* tmp2 = dyn_cast<MaterializeTemporaryExpr>( constructorArg0SubExpr );
- if( tmp2 ) {
- constructorArg0SubExpr = tmp2->GetTemporaryExpr();
- continue;
- }
- CXXBindTemporaryExpr* tmp3 = dyn_cast<CXXBindTemporaryExpr>( constructorArg0SubExpr );
- if( tmp3 ) {
- constructorArg0SubExpr = tmp3->getSubExpr();
- continue;
- }
- CXXTemporaryObjectExpr* tmp4 = dyn_cast<CXXTemporaryObjectExpr>( constructorArg0SubExpr );
- if( tmp4 ) {
- constructorArg0SubExpr = tmp4->getArg(0);
- continue;
- }
- return true;
- }
-
- const Type * tmp3 = extractTemplateType( constructorSubArg2 );
- if ( !tmp3 )
- return true;
-
- const RecordType* templateParamRT = dyn_cast<RecordType>( templateParamType );
- const RecordType* constructorArgRT = dyn_cast<RecordType>( tmp3 );
- if( !templateParamRT || !constructorArgRT )
- return true;
-
- CXXRecordDecl* templateParamRD = dyn_cast<CXXRecordDecl>( templateParamRT->getDecl() );
- CXXRecordDecl* constructorArgRD = dyn_cast<CXXRecordDecl>( constructorArgRT->getDecl() );
-
- if (constructorArgRD->Equals(templateParamRD) || constructorArgRD->isDerivedFrom(templateParamRD))
- report( DiagnosticsEngine::Warning,
- "the source reference is already a subtype of the destination reference",
- cce->getLocStart()) // and the exact position where the message should point
- << cce->getSourceRange(); // and the full return statement to highlight (optional)
-
- return true;
-}
-
-static const Type* extractTemplateType(Expr* cce)
-{
- QualType cceQT = cce->getType();
- const Type* cceType = cceQT.getTypePtr();
- const TemplateSpecializationType* cceTST = dyn_cast<TemplateSpecializationType>( cceType );
- if( !cceTST )
- return NULL;
- if( cceTST->getNumArgs() != 1 )
- return NULL;
- const TemplateArgument & cceTA = cceTST->getArg(0);
- QualType templateParamQT = cceTA.getAsType();
- return templateParamQT.getTypePtr();
-}
-
-static Plugin::Registration< ReferenceCasting > X( "referencecasting" );
-
-} // namespace
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit (git 2.34.1) at 2024-07-31 14:05:47 +0000