Function getContextualType

test/fixtures/snapshot/typescript.js:72981–73051

* Whoa! Do you really want to use this function? * * Unless you're trying to get the *non-apparent* type for a * value-literal type or you're authoring relevant portions of this algorithm, * you probably meant to use 'getApparentTypeOfContextualType'. * O

(node, contextFlags)

         * @returns the contextual type of an expression.
         */
        function getContextualType(node, contextFlags) {
            if (node.flags & 33554432 /* NodeFlags.InWithStatement */) {
                // We cannot answer semantic questions within a with block, do not proceed any further
                return undefined;
            }
            if (node.contextualType) {
                return node.contextualType;
            }
            var parent = node.parent;
            switch (parent.kind) {
                case 254 /* SyntaxKind.VariableDeclaration */:
                case 164 /* SyntaxKind.Parameter */:
                case 167 /* SyntaxKind.PropertyDeclaration */:
                case 166 /* SyntaxKind.PropertySignature */:
                case 203 /* SyntaxKind.BindingElement */:
                    return getContextualTypeForInitializerExpression(node, contextFlags);
                case 214 /* SyntaxKind.ArrowFunction */:
                case 247 /* SyntaxKind.ReturnStatement */:
                    return getContextualTypeForReturnExpression(node);
                case 224 /* SyntaxKind.YieldExpression */:
                    return getContextualTypeForYieldOperand(parent);
                case 218 /* SyntaxKind.AwaitExpression */:
                    return getContextualTypeForAwaitOperand(parent, contextFlags);
                case 208 /* SyntaxKind.CallExpression */:
                case 209 /* SyntaxKind.NewExpression */:
                    return getContextualTypeForArgument(parent, node);
                case 211 /* SyntaxKind.TypeAssertionExpression */:
                case 229 /* SyntaxKind.AsExpression */:
                    return ts.isConstTypeReference(parent.type) ? tryFindWhenConstTypeReference(parent) : getTypeFromTypeNode(parent.type);
                case 221 /* SyntaxKind.BinaryExpression */:
                    return getContextualTypeForBinaryOperand(node, contextFlags);
                case 296 /* SyntaxKind.PropertyAssignment */:
                case 297 /* SyntaxKind.ShorthandPropertyAssignment */:
                    return getContextualTypeForObjectLiteralElement(parent, contextFlags);
                case 298 /* SyntaxKind.SpreadAssignment */:
                    return getContextualType(parent.parent, contextFlags);
                case 204 /* SyntaxKind.ArrayLiteralExpression */: {
                    var arrayLiteral = parent;
                    var type = getApparentTypeOfContextualType(arrayLiteral, contextFlags);
                    return getContextualTypeForElementExpression(type, ts.indexOfNode(arrayLiteral.elements, node));
                }
                case 222 /* SyntaxKind.ConditionalExpression */:
                    return getContextualTypeForConditionalOperand(node, contextFlags);
                case 233 /* SyntaxKind.TemplateSpan */:
                    ts.Debug.assert(parent.parent.kind === 223 /* SyntaxKind.TemplateExpression */);
                    return getContextualTypeForSubstitutionExpression(parent.parent, node);
                case 212 /* SyntaxKind.ParenthesizedExpression */: {
                    // Like in `checkParenthesizedExpression`, an `/** @type {xyz} */` comment before a parenthesized expression acts as a type cast.
                    var tag = ts.isInJSFile(parent) ? ts.getJSDocTypeTag(parent) : undefined;
                    return !tag ? getContextualType(parent, contextFlags) :
                        ts.isJSDocTypeTag(tag) && ts.isConstTypeReference(tag.typeExpression.type) ? tryFindWhenConstTypeReference(parent) :
                            getTypeFromTypeNode(tag.typeExpression.type);
                }
                case 230 /* SyntaxKind.NonNullExpression */:
                    return getContextualType(parent, contextFlags);
                case 271 /* SyntaxKind.ExportAssignment */:
                    return tryGetTypeFromEffectiveTypeNode(parent);
                case 288 /* SyntaxKind.JsxExpression */: