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

Example 91 with SimpleName

use of org.eclipse.jdt.core.dom.SimpleName in project eclipse.jdt.ls by eclipse.

the class UnresolvedElementsSubProcessor method addSimilarVariableProposals.

private static void addSimilarVariableProposals(ICompilationUnit cu, CompilationUnit astRoot, ITypeBinding binding, IVariableBinding resolvedField, SimpleName node, boolean isWriteAccess, Collection<CUCorrectionProposal> 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<>(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, org.eclipse.jdt.ls.core.internal.corrections.ASTResolving.getMethodSignature(curr));
                        ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_TO_METHOD);
                        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);
                        }
                        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));
    }
}

Example 92 with SimpleName

use of org.eclipse.jdt.core.dom.SimpleName in project eclipse.jdt.ls by eclipse.

the class UnresolvedElementsSubProcessor method addStaticImportFavoriteProposals.

private static void addStaticImportFavoriteProposals(IInvocationContext context, SimpleName node, boolean isMethod, Collection<CUCorrectionProposal> proposals) throws JavaModelException {
    IJavaProject project = context.getCompilationUnit().getJavaProject();
    if (JavaModelUtil.is50OrHigher(project)) {
        String[] favourites = PreferenceManager.getPrefs(context.getCompilationUnit().getResource()).getJavaCompletionFavoriteMembers();
        if (favourites.length == 0) {
            return;
        }
        CompilationUnit root = context.getASTRoot();
        AST ast = root.getAST();
        String name = node.getIdentifier();
        String[] staticImports = SimilarElementsRequestor.getStaticImportFavorites(context.getCompilationUnit(), name, isMethod, favourites);
        for (int i = 0; i < staticImports.length; i++) {
            String curr = staticImports[i];
            ImportRewrite importRewrite = CodeStyleConfiguration.createImportRewrite(root, true);
            ASTRewrite astRewrite = ASTRewrite.create(ast);
            String label;
            String qualifiedTypeName = Signature.getQualifier(curr);
            String elementLabel = BasicElementLabels.getJavaElementName(JavaModelUtil.concatenateName(Signature.getSimpleName(qualifiedTypeName), name));
            String res = importRewrite.addStaticImport(qualifiedTypeName, name, isMethod, new ContextSensitiveImportRewriteContext(root, node.getStartPosition(), importRewrite));
            int dot = res.lastIndexOf('.');
            if (dot != -1) {
                String usedTypeName = importRewrite.addImport(qualifiedTypeName);
                Name newName = ast.newQualifiedName(ast.newName(usedTypeName), ast.newSimpleName(name));
                astRewrite.replace(node, newName, null);
                label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_change_to_static_import_description, elementLabel);
            } else {
                label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_add_static_import_description, elementLabel);
            }
            ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), astRewrite, IProposalRelevance.ADD_STATIC_IMPORT);
            proposal.setImportRewrite(importRewrite);
            proposals.add(proposal);
        }
    }
}

Example 93 with SimpleName

use of org.eclipse.jdt.core.dom.SimpleName in project eclipse.jdt.ls by eclipse.

the class UnresolvedElementsSubProcessor method getMethodProposals.

public static void getMethodProposals(IInvocationContext context, IProblemLocation problem, boolean isOnlyParameterMismatch, Collection<CUCorrectionProposal> proposals) throws CoreException {
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    ASTNode selectedNode = problem.getCoveringNode(astRoot);
    if (!(selectedNode instanceof SimpleName)) {
        return;
    }
    SimpleName nameNode = (SimpleName) selectedNode;
    List<Expression> arguments;
    Expression sender;
    boolean isSuperInvocation;
    ASTNode invocationNode = nameNode.getParent();
    if (invocationNode instanceof MethodInvocation) {
        MethodInvocation methodImpl = (MethodInvocation) invocationNode;
        arguments = methodImpl.arguments();
        sender = methodImpl.getExpression();
        isSuperInvocation = false;
    } else if (invocationNode instanceof SuperMethodInvocation) {
        SuperMethodInvocation methodImpl = (SuperMethodInvocation) invocationNode;
        arguments = methodImpl.arguments();
        sender = methodImpl.getQualifier();
        isSuperInvocation = true;
    } else {
        return;
    }
    String methodName = nameNode.getIdentifier();
    int nArguments = arguments.size();
    // corrections
    IBinding[] bindings = (new ScopeAnalyzer(astRoot)).getDeclarationsInScope(nameNode, ScopeAnalyzer.METHODS);
    HashSet<String> suggestedRenames = new HashSet<>();
    for (int i = 0; i < bindings.length; i++) {
        IMethodBinding binding = (IMethodBinding) bindings[i];
        String curr = binding.getName();
        if (!curr.equals(methodName) && binding.getParameterTypes().length == nArguments && NameMatcher.isSimilarName(methodName, curr) && suggestedRenames.add(curr)) {
            String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changemethod_description, BasicElementLabels.getJavaElementName(curr));
            proposals.add(new RenameNodeCorrectionProposal(label, context.getCompilationUnit(), problem.getOffset(), problem.getLength(), curr, IProposalRelevance.CHANGE_METHOD));
        }
    }
    suggestedRenames = null;
    if (isOnlyParameterMismatch) {
        ArrayList<IMethodBinding> parameterMismatchs = new ArrayList<>();
        for (int i = 0; i < bindings.length; i++) {
            IMethodBinding binding = (IMethodBinding) bindings[i];
            if (binding.getName().equals(methodName)) {
                parameterMismatchs.add(binding);
            }
        }
        addParameterMissmatchProposals(context, problem, parameterMismatchs, invocationNode, arguments, proposals);
    }
    if (sender == null) {
        addStaticImportFavoriteProposals(context, nameNode, true, proposals);
    }
    // new method
    addNewMethodProposals(cu, astRoot, sender, arguments, isSuperInvocation, invocationNode, methodName, proposals);
    if (!isOnlyParameterMismatch && !isSuperInvocation && sender != null) {
        addMissingCastParentsProposal(cu, (MethodInvocation) invocationNode, proposals);
    }
    if (!isSuperInvocation && sender == null && invocationNode.getParent() instanceof ThrowStatement) {
        // $NON-NLS-1$ // do it the manual way, copting all the arguments is nasty
        String str = "new ";
        String label = CorrectionMessages.UnresolvedElementsSubProcessor_addnewkeyword_description;
        int relevance = Character.isUpperCase(methodName.charAt(0)) ? IProposalRelevance.ADD_NEW_KEYWORD_UPPERCASE : IProposalRelevance.ADD_NEW_KEYWORD;
        ReplaceCorrectionProposal proposal = new ReplaceCorrectionProposal(label, cu, invocationNode.getStartPosition(), 0, str, relevance);
        proposals.add(proposal);
    }
}

Example 94 with SimpleName

use of org.eclipse.jdt.core.dom.SimpleName in project eclipse.jdt.ls by eclipse.

the class NewMethodCorrectionProposal method getNewName.

@Override
protected SimpleName getNewName(ASTRewrite rewrite) {
    ASTNode invocationNode = getInvocationNode();
    String name;
    if (invocationNode instanceof MethodInvocation) {
        name = ((MethodInvocation) invocationNode).getName().getIdentifier();
    } else if (invocationNode instanceof SuperMethodInvocation) {
        name = ((SuperMethodInvocation) invocationNode).getName().getIdentifier();
    } else {
        // name of the class
        name = getSenderBinding().getName();
    }
    AST ast = rewrite.getAST();
    SimpleName newNameNode = ast.newSimpleName(name);
    return newNameNode;
}

Example 95 with SimpleName

use of org.eclipse.jdt.core.dom.SimpleName in project eclipse.jdt.ls by eclipse.

the class NewVariableCorrectionProposal method doAddEnumConst.

private ASTRewrite doAddEnumConst(CompilationUnit astRoot) {
    SimpleName node = fOriginalNode;
    ASTNode newTypeDecl = astRoot.findDeclaringNode(fSenderBinding);
    if (newTypeDecl == null) {
        astRoot = ASTResolving.createQuickFixAST(getCompilationUnit(), null);
        newTypeDecl = astRoot.findDeclaringNode(fSenderBinding.getKey());
    }
    if (newTypeDecl != null) {
        AST ast = newTypeDecl.getAST();
        ASTRewrite rewrite = ASTRewrite.create(ast);
        EnumConstantDeclaration constDecl = ast.newEnumConstantDeclaration();
        constDecl.setName(ast.newSimpleName(node.getIdentifier()));
        ListRewrite listRewriter = rewrite.getListRewrite(newTypeDecl, EnumDeclaration.ENUM_CONSTANTS_PROPERTY);
        listRewriter.insertLast(constDecl, null);
        return rewrite;
    }
    return null;
}