Examples with ITypeBinding org.eclipse.jdt.core.dom.ITypeBinding used on opensource projects

Example 66 with ITypeBinding

use of org.eclipse.jdt.core.dom.ITypeBinding in project che by eclipse.

the class TypeMismatchSubProcessor method addChangeSenderTypeProposals.

public static void addChangeSenderTypeProposals(IInvocationContext context, Expression nodeToCast, ITypeBinding castTypeBinding, boolean isAssignedNode, int relevance, Collection<ICommandAccess> proposals) throws JavaModelException {
    IBinding callerBinding = Bindings.resolveExpressionBinding(nodeToCast, false);
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    ICompilationUnit targetCu = null;
    ITypeBinding declaringType = null;
    IBinding callerBindingDecl = callerBinding;
    if (callerBinding instanceof IVariableBinding) {
        IVariableBinding variableBinding = (IVariableBinding) callerBinding;
        if (variableBinding.isEnumConstant()) {
            return;
        }
        if (!variableBinding.isField()) {
            targetCu = cu;
        } else {
            callerBindingDecl = variableBinding.getVariableDeclaration();
            ITypeBinding declaringClass = variableBinding.getDeclaringClass();
            if (declaringClass == null) {
                // array length
                return;
            }
            declaringType = declaringClass.getTypeDeclaration();
        }
    } else if (callerBinding instanceof IMethodBinding) {
        IMethodBinding methodBinding = (IMethodBinding) callerBinding;
        if (!methodBinding.isConstructor()) {
            declaringType = methodBinding.getDeclaringClass().getTypeDeclaration();
            callerBindingDecl = methodBinding.getMethodDeclaration();
        }
    } else if (callerBinding instanceof ITypeBinding && nodeToCast.getLocationInParent() == SingleMemberAnnotation.TYPE_NAME_PROPERTY) {
        declaringType = (ITypeBinding) callerBinding;
        //$NON-NLS-1$
        callerBindingDecl = Bindings.findMethodInType(declaringType, "value", (String[]) null);
        if (callerBindingDecl == null) {
            return;
        }
    }
    if (declaringType != null && declaringType.isFromSource()) {
        targetCu = ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringType);
    }
    if (targetCu != null && ASTResolving.isUseableTypeInContext(castTypeBinding, callerBindingDecl, false)) {
        proposals.add(new TypeChangeCorrectionProposal(targetCu, callerBindingDecl, astRoot, castTypeBinding, isAssignedNode, relevance));
    }
    // add interface to resulting type
    if (!isAssignedNode) {
        ITypeBinding nodeType = nodeToCast.resolveTypeBinding();
        if (castTypeBinding.isInterface() && nodeType != null && nodeType.isClass() && !nodeType.isAnonymous() && nodeType.isFromSource()) {
            ITypeBinding typeDecl = nodeType.getTypeDeclaration();
            ICompilationUnit nodeCu = ASTResolving.findCompilationUnitForBinding(cu, astRoot, typeDecl);
            if (nodeCu != null && ASTResolving.isUseableTypeInContext(castTypeBinding, typeDecl, true)) {
                proposals.add(new ImplementInterfaceProposal(nodeCu, typeDecl, astRoot, castTypeBinding, relevance - 1));
            }
        }
    }
}

Example 67 with ITypeBinding

use of org.eclipse.jdt.core.dom.ITypeBinding in project che by eclipse.

the class UnresolvedElementsSubProcessor method hasFieldWithName.

private static boolean hasFieldWithName(ITypeBinding typeBinding, String name) {
    IMethodBinding[] methods = typeBinding.getDeclaredMethods();
    for (int i = 0; i < methods.length; i++) {
        if (methods[i].getName().equals(name)) {
            return true;
        }
    }
    ITypeBinding superclass = typeBinding.getSuperclass();
    if (superclass != null) {
        return hasMethodWithName(superclass, name);
    }
    return false;
}

Example 68 with ITypeBinding

use of org.eclipse.jdt.core.dom.ITypeBinding in project che by eclipse.

the class UnresolvedElementsSubProcessor method getArgumentTypes.

private static ITypeBinding[] getArgumentTypes(List<Expression> arguments) {
    ITypeBinding[] res = new ITypeBinding[arguments.size()];
    for (int i = 0; i < res.length; i++) {
        Expression expression = arguments.get(i);
        ITypeBinding curr = expression.resolveTypeBinding();
        if (curr == null) {
            return null;
        }
        if (!curr.isNullType()) {
            // don't normalize null type
            curr = Bindings.normalizeTypeBinding(curr);
            if (curr == null) {
                //$NON-NLS-1$
                curr = expression.getAST().resolveWellKnownType("java.lang.Object");
            }
        }
        res[i] = curr;
    }
    return res;
}

Example 69 with ITypeBinding

use of org.eclipse.jdt.core.dom.ITypeBinding in project che by eclipse.

the class UnresolvedElementsSubProcessor method getAnnotationMemberProposals.

public static void getAnnotationMemberProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) throws CoreException {
    CompilationUnit astRoot = context.getASTRoot();
    ICompilationUnit cu = context.getCompilationUnit();
    ASTNode selectedNode = problem.getCoveringNode(astRoot);
    Annotation annotation;
    String memberName;
    if (selectedNode.getLocationInParent() == MemberValuePair.NAME_PROPERTY) {
        if (selectedNode.getParent().getLocationInParent() != NormalAnnotation.VALUES_PROPERTY) {
            return;
        }
        annotation = (Annotation) selectedNode.getParent().getParent();
        memberName = ((SimpleName) selectedNode).getIdentifier();
    } else if (selectedNode.getLocationInParent() == SingleMemberAnnotation.VALUE_PROPERTY) {
        annotation = (Annotation) selectedNode.getParent();
        //$NON-NLS-1$
        memberName = "value";
    } else {
        return;
    }
    ITypeBinding annotBinding = annotation.resolveTypeBinding();
    if (annotBinding == null) {
        return;
    }
    if (annotation instanceof NormalAnnotation) {
        // similar names
        IMethodBinding[] otherMembers = annotBinding.getDeclaredMethods();
        for (int i = 0; i < otherMembers.length; i++) {
            IMethodBinding binding = otherMembers[i];
            String curr = binding.getName();
            int relevance = NameMatcher.isSimilarName(memberName, curr) ? IProposalRelevance.CHANGE_TO_ATTRIBUTE_SIMILAR_NAME : IProposalRelevance.CHANGE_TO_ATTRIBUTE;
            String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_UnresolvedElementsSubProcessor_changetoattribute_description, BasicElementLabels.getJavaElementName(curr));
            proposals.add(new RenameNodeCorrectionProposal(label, cu, problem.getOffset(), problem.getLength(), curr, relevance));
        }
    }
    if (annotBinding.isFromSource()) {
        ICompilationUnit targetCU = ASTResolving.findCompilationUnitForBinding(cu, astRoot, annotBinding);
        if (targetCU != null) {
            String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_UnresolvedElementsSubProcessor_createattribute_description, BasicElementLabels.getJavaElementName(memberName));
            Image image = JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC);
            proposals.add(new NewAnnotationMemberProposal(label, targetCU, selectedNode, annotBinding, IProposalRelevance.CREATE_ATTRIBUTE, image));
        }
    }
}

Example 70 with ITypeBinding

use of org.eclipse.jdt.core.dom.ITypeBinding in project che by eclipse.

the class UnresolvedElementsSubProcessor method addSimilarVariableProposals.

private static void addSimilarVariableProposals(ICompilationUnit cu, CompilationUnit astRoot, ITypeBinding binding, IVariableBinding resolvedField, SimpleName node, boolean isWriteAccess, Collection<ICommandAccess> proposals) {
    int kind = ScopeAnalyzer.VARIABLES | ScopeAnalyzer.CHECK_VISIBILITY;
    if (!isWriteAccess) {
        // also try to find similar methods
        kind |= ScopeAnalyzer.METHODS;
    }
    IBinding[] varsAndMethodsInScope = (new ScopeAnalyzer(astRoot)).getDeclarationsInScope(node, kind);
    if (varsAndMethodsInScope.length > 0) {
        // avoid corrections like int i= i;
        String otherNameInAssign = null;
        // help with x.getString() -> y.getString()
        String methodSenderName = null;
        String fieldSenderName = null;
        ASTNode parent = node.getParent();
        switch(parent.getNodeType()) {
            case ASTNode.VARIABLE_DECLARATION_FRAGMENT:
                // node must be initializer
                otherNameInAssign = ((VariableDeclarationFragment) parent).getName().getIdentifier();
                break;
            case ASTNode.ASSIGNMENT:
                Assignment assignment = (Assignment) parent;
                if (isWriteAccess && assignment.getRightHandSide() instanceof SimpleName) {
                    otherNameInAssign = ((SimpleName) assignment.getRightHandSide()).getIdentifier();
                } else if (!isWriteAccess && assignment.getLeftHandSide() instanceof SimpleName) {
                    otherNameInAssign = ((SimpleName) assignment.getLeftHandSide()).getIdentifier();
                }
                break;
            case ASTNode.METHOD_INVOCATION:
                MethodInvocation inv = (MethodInvocation) parent;
                if (inv.getExpression() == node) {
                    methodSenderName = inv.getName().getIdentifier();
                }
                break;
            case ASTNode.QUALIFIED_NAME:
                QualifiedName qualName = (QualifiedName) parent;
                if (qualName.getQualifier() == node) {
                    fieldSenderName = qualName.getName().getIdentifier();
                }
                break;
        }
        ITypeBinding guessedType = ASTResolving.guessBindingForReference(node);
        //$NON-NLS-1$
        ITypeBinding objectBinding = astRoot.getAST().resolveWellKnownType("java.lang.Object");
        String identifier = node.getIdentifier();
        boolean isInStaticContext = ASTResolving.isInStaticContext(node);
        ArrayList<CUCorrectionProposal> newProposals = new ArrayList<CUCorrectionProposal>(51);
        loop: for (int i = 0; i < varsAndMethodsInScope.length && newProposals.size() <= 50; i++) {
            IBinding varOrMeth = varsAndMethodsInScope[i];
            if (varOrMeth instanceof IVariableBinding) {
                IVariableBinding curr = (IVariableBinding) varOrMeth;
                String currName = curr.getName();
                if (currName.equals(otherNameInAssign)) {
                    continue loop;
                }
                if (resolvedField != null && Bindings.equals(resolvedField, curr)) {
                    continue loop;
                }
                boolean isFinal = Modifier.isFinal(curr.getModifiers());
                if (isFinal && curr.isField() && isWriteAccess) {
                    continue loop;
                }
                if (isInStaticContext && !Modifier.isStatic(curr.getModifiers()) && curr.isField()) {
                    continue loop;
                }
                int relevance = IProposalRelevance.SIMILAR_VARIABLE_PROPOSAL;
                if (NameMatcher.isSimilarName(currName, identifier)) {
                    // variable with a similar name than the unresolved variable
                    relevance += 3;
                }
                if (currName.equalsIgnoreCase(identifier)) {
                    relevance += 5;
                }
                ITypeBinding varType = curr.getType();
                if (varType != null) {
                    if (guessedType != null && guessedType != objectBinding) {
                        // variable type is compatible with the guessed type
                        if (!isWriteAccess && canAssign(varType, guessedType) || isWriteAccess && canAssign(guessedType, varType)) {
                            // unresolved variable can be assign to this variable
                            relevance += 2;
                        }
                    }
                    if (methodSenderName != null && hasMethodWithName(varType, methodSenderName)) {
                        relevance += 2;
                    }
                    if (fieldSenderName != null && hasFieldWithName(varType, fieldSenderName)) {
                        relevance += 2;
                    }
                }
                if (relevance > 0) {
                    String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changevariable_description, BasicElementLabels.getJavaElementName(currName));
                    newProposals.add(new RenameNodeCorrectionProposal(label, cu, node.getStartPosition(), node.getLength(), currName, relevance));
                }
            } else if (varOrMeth instanceof IMethodBinding) {
                IMethodBinding curr = (IMethodBinding) varOrMeth;
                if (!curr.isConstructor() && guessedType != null && canAssign(curr.getReturnType(), guessedType)) {
                    if (NameMatcher.isSimilarName(curr.getName(), identifier)) {
                        AST ast = astRoot.getAST();
                        ASTRewrite rewrite = ASTRewrite.create(ast);
                        String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetomethod_description, ASTResolving.getMethodSignature(curr));
                        Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
                        LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_TO_METHOD, image);
                        newProposals.add(proposal);
                        MethodInvocation newInv = ast.newMethodInvocation();
                        newInv.setName(ast.newSimpleName(curr.getName()));
                        ITypeBinding[] parameterTypes = curr.getParameterTypes();
                        for (int k = 0; k < parameterTypes.length; k++) {
                            ASTNode arg = ASTNodeFactory.newDefaultExpression(ast, parameterTypes[k]);
                            newInv.arguments().add(arg);
                            proposal.addLinkedPosition(rewrite.track(arg), false, null);
                        }
                        rewrite.replace(node, newInv, null);
                    }
                }
            }
        }
        if (newProposals.size() <= 50)
            proposals.addAll(newProposals);
    }
    if (binding != null && binding.isArray()) {
        //$NON-NLS-1$
        String idLength = "length";
        String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changevariable_description, idLength);
        proposals.add(new RenameNodeCorrectionProposal(label, cu, node.getStartPosition(), node.getLength(), idLength, IProposalRelevance.CHANGE_VARIABLE));
    }
}