@Nullable private static PsiType doNormalizeWildcardByPosition( final PsiType type, final GrExpression expression, final GrExpression toplevel) { if (type instanceof PsiCapturedWildcardType) { return doNormalizeWildcardByPosition( ((PsiCapturedWildcardType) type).getWildcard(), expression, toplevel); } if (type instanceof PsiWildcardType) { final PsiWildcardType wildcardType = (PsiWildcardType) type; if (PsiUtil.isAccessedForWriting(toplevel)) { return wildcardType.isSuper() ? wildcardType.getBound() : PsiCapturedWildcardType.create(wildcardType, expression); } else { if (wildcardType.isExtends()) { return wildcardType.getBound(); } else { return PsiType.getJavaLangObject(expression.getManager(), expression.getResolveScope()); } } } else if (type instanceof PsiArrayType) { final PsiType componentType = ((PsiArrayType) type).getComponentType(); final PsiType normalizedComponentType = doNormalizeWildcardByPosition(componentType, expression, toplevel); if (normalizedComponentType != componentType) { assert normalizedComponentType != null; return normalizedComponentType.createArrayType(); } } return type; }
@Nullable public static PsiType normalizeWildcardTypeByPosition( @NotNull PsiType type, @NotNull GrExpression expression) { GrExpression toplevel = expression; while (toplevel.getParent() instanceof GrIndexProperty && ((GrIndexProperty) toplevel.getParent()).getInvokedExpression() == toplevel) { toplevel = (GrExpression) toplevel.getParent(); } final PsiType normalized = doNormalizeWildcardByPosition(type, expression, toplevel); if (normalized instanceof PsiClassType && !PsiUtil.isAccessedForWriting(toplevel)) { return com.intellij.psi.util.PsiUtil.captureToplevelWildcards(normalized, expression); } return normalized; }
@Override protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException { final GrField field; if (element.getParent() instanceof GrField) { field = (GrField) element.getParent(); } else { final PsiReference ref = element.getReference(); LOG.assertTrue(ref != null); PsiElement resolved = ref.resolve(); if (resolved instanceof GrAccessorMethod) { resolved = ((GrAccessorMethod) resolved).getProperty(); } LOG.assertTrue(resolved instanceof GrField); field = (GrField) resolved; } final HashSet<PsiReference> usages = new HashSet<PsiReference>(); usages.addAll(ReferencesSearch.search(field).findAll()); final GrAccessorMethod[] getters = field.getGetters(); for (GrAccessorMethod getter : getters) { usages.addAll(MethodReferencesSearch.search(getter).findAll()); } final GrAccessorMethod setter = field.getSetter(); if (setter != null) { usages.addAll(MethodReferencesSearch.search(setter).findAll()); } final String fieldName = field.getName(); LOG.assertTrue(fieldName != null); final Collection<PsiElement> fieldUsages = new HashSet<PsiElement>(); MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>(); for (PsiReference usage : usages) { final PsiElement psiElement = usage.getElement(); if (PsiUtil.isMethodUsage(psiElement)) continue; if (!GroovyFileType.GROOVY_LANGUAGE.equals(psiElement.getLanguage())) { conflicts.putValue( psiElement, GroovyIntentionsBundle.message("closure.is.accessed.outside.of.groovy", fieldName)); } else { if (psiElement instanceof GrReferenceExpression) { fieldUsages.add(psiElement); if (PsiUtil.isAccessedForWriting((GrExpression) psiElement)) { conflicts.putValue( psiElement, GroovyIntentionsBundle.message("write.access.to.closure.variable", fieldName)); } } else if (psiElement instanceof GrArgumentLabel) { conflicts.putValue( psiElement, GroovyIntentionsBundle.message("field.is.used.in.argument.label", fieldName)); } } } final PsiClass containingClass = field.getContainingClass(); final GrExpression initializer = field.getInitializerGroovy(); LOG.assertTrue(initializer != null); final PsiType type = initializer.getType(); LOG.assertTrue(type instanceof GrClosureType); final GrSignature signature = ((GrClosureType) type).getSignature(); final List<MethodSignature> signatures = GrClosureSignatureUtil.generateAllMethodSignaturesBySignature(fieldName, signature); for (MethodSignature s : signatures) { final PsiMethod method = MethodSignatureUtil.findMethodBySignature(containingClass, s, true); if (method != null) { conflicts.putValue( method, GroovyIntentionsBundle.message( "method.with.signature.already.exists", GroovyPresentationUtil.getSignaturePresentation(s))); } } if (conflicts.size() > 0) { final ConflictsDialog conflictsDialog = new ConflictsDialog( project, conflicts, new Runnable() { @Override public void run() { execute(field, fieldUsages); } }); conflictsDialog.show(); if (conflictsDialog.getExitCode() != DialogWrapper.OK_EXIT_CODE) return; } execute(field, fieldUsages); }