Function getTypeForDeclarationFromJSDocComment

test/fixtures/snapshot/typescript.js:55925–55931

(declaration)

            return widenTypeInferredFromInitializer(declaration, getUnionType([getNonUndefinedType(type), checkDeclarationInitializer(declaration, 0 /* CheckMode.Normal */)], 2 /* UnionReduction.Subtype */));
        }
        function getTypeForDeclarationFromJSDocComment(declaration) {
            var jsdocType = ts.getJSDocType(declaration);
            if (jsdocType) {
                return getTypeFromTypeNode(jsdocType);
            }
            return undefined;
        }
        function isNullOrUndefined(node) {
            var expr = ts.skipParentheses(node, /*excludeJSDocTypeAssertions*/ true);
            return expr.kind === 104 /* SyntaxKind.NullKeyword */ || expr.kind === 79 /* SyntaxKind.Identifier */ && getResolvedSymbol(expr) === undefinedSymbol;