Function tryGetObjectLikeCompletionSymbols

test/fixtures/snapshot/typescript.js:134302–134379

* Aggregates relevant symbols for completion in object literals and object binding patterns. * Relevant symbols are stored in the captured 'symbols' variable. * * @returns true if 'symbols' was successfully populated; false otherwise.

()

             * @returns true if 'symbols' was successfully populated; false otherwise.
             */
            function tryGetObjectLikeCompletionSymbols() {
                var symbolsStartIndex = symbols.length;
                var objectLikeContainer = tryGetObjectLikeCompletionContainer(contextToken);
                if (!objectLikeContainer)
                    return 0 /* GlobalsSearch.Continue */;
                // We're looking up possible property names from contextual/inferred/declared type.
                completionKind = 0 /* CompletionKind.ObjectPropertyDeclaration */;
                var typeMembers;
                var existingMembers;
                if (objectLikeContainer.kind === 205 /* SyntaxKind.ObjectLiteralExpression */) {
                    var instantiatedType = tryGetObjectLiteralContextualType(objectLikeContainer, typeChecker);
                    // Check completions for Object property value shorthand
                    if (instantiatedType === undefined) {
                        if (objectLikeContainer.flags & 33554432 /* NodeFlags.InWithStatement */) {
                            return 2 /* GlobalsSearch.Fail */;
                        }
                        isNonContextualObjectLiteral = true;
                        return 0 /* GlobalsSearch.Continue */;
                    }
                    var completionsType = typeChecker.getContextualType(objectLikeContainer, 4 /* ContextFlags.Completions */);
                    var hasStringIndexType = (completionsType || instantiatedType).getStringIndexType();
                    var hasNumberIndextype = (completionsType || instantiatedType).getNumberIndexType();
                    isNewIdentifierLocation = !!hasStringIndexType || !!hasNumberIndextype;
                    typeMembers = getPropertiesForObjectExpression(instantiatedType, completionsType, objectLikeContainer, typeChecker);
                    existingMembers = objectLikeContainer.properties;
                    if (typeMembers.length === 0) {
                        // Edge case: If NumberIndexType exists
                        if (!hasNumberIndextype) {
                            isNonContextualObjectLiteral = true;
                            return 0 /* GlobalsSearch.Continue */;
                        }
                    }
                }
                else {
                    ts.Debug.assert(objectLikeContainer.kind === 201 /* SyntaxKind.ObjectBindingPattern */);
                    // We are *only* completing on properties from the type being destructured.
                    isNewIdentifierLocation = false;
                    var rootDeclaration = ts.getRootDeclaration(objectLikeContainer.parent);
                    if (!ts.isVariableLike(rootDeclaration))
                        return ts.Debug.fail("Root declaration is not variable-like.");
                    // We don't want to complete using the type acquired by the shape
                    // of the binding pattern; we are only interested in types acquired
                    // through type declaration or inference.
                    // Also proceed if rootDeclaration is a parameter and if its containing function expression/arrow function is contextually typed -
                    // type of parameter will flow in from the contextual type of the function
                    var canGetType = ts.hasInitializer(rootDeclaration) || !!ts.getEffectiveTypeAnnotationNode(rootDeclaration) || rootDeclaration.parent.parent.kind === 244 /* SyntaxKind.ForOfStatement */;
                    if (!canGetType && rootDeclaration.kind === 164 /* SyntaxKind.Parameter */) {
                        if (ts.isExpression(rootDeclaration.parent)) {
                            canGetType = !!typeChecker.getContextualType(rootDeclaration.parent);
                        }
                        else if (rootDeclaration.parent.kind === 169 /* SyntaxKind.MethodDeclaration */ || rootDeclaration.parent.kind === 173 /* SyntaxKind.SetAccessor */) {
                            canGetType = ts.isExpression(rootDeclaration.parent.parent) && !!typeChecker.getContextualType(rootDeclaration.parent.parent);
                        }
                    }
                    if (canGetType) {
                        var typeForObject_1 = typeChecker.getTypeAtLocation(objectLikeContainer);
                        if (!typeForObject_1)
                            return 2 /* GlobalsSearch.Fail */;