Function doChange

test/fixtures/snapshot/typescript.js:150966–150997

(changes, sourceFile, decl)

                : !decl.type && !!ts.getJSDocType(decl);
        }
        function doChange(changes, sourceFile, decl) {
            if (ts.isFunctionLikeDeclaration(decl) && (ts.getJSDocReturnType(decl) || decl.parameters.some(function (p) { return !!ts.getJSDocType(p); }))) {
                if (!decl.typeParameters) {
                    var typeParameters = ts.getJSDocTypeParameterDeclarations(decl);
                    if (typeParameters.length)
                        changes.insertTypeParameters(sourceFile, decl, typeParameters);
                }
                var needParens = ts.isArrowFunction(decl) && !ts.findChildOfKind(decl, 20 /* SyntaxKind.OpenParenToken */, sourceFile);
                if (needParens)
                    changes.insertNodeBefore(sourceFile, ts.first(decl.parameters), ts.factory.createToken(20 /* SyntaxKind.OpenParenToken */));
                for (var _i = 0, _a = decl.parameters; _i < _a.length; _i++) {
                    var param = _a[_i];
                    if (!param.type) {
                        var paramType = ts.getJSDocType(param);
                        if (paramType)
                            changes.tryInsertTypeAnnotation(sourceFile, param, transformJSDocType(paramType));
                    }
                }
                if (needParens)
                    changes.insertNodeAfter(sourceFile, ts.last(decl.parameters), ts.factory.createToken(21 /* SyntaxKind.CloseParenToken */));
                if (!decl.type) {
                    var returnType = ts.getJSDocReturnType(decl);
                    if (returnType)
                        changes.tryInsertTypeAnnotation(sourceFile, decl, transformJSDocType(returnType));
                }
            }
            else {
                var jsdocType = ts.Debug.checkDefined(ts.getJSDocType(decl), "A JSDocType for this declaration should exist"); // If not defined, shouldn't have been an error to fix
                ts.Debug.assert(!decl.type, "The JSDocType decl should have a type"); // If defined, shouldn't have been an error to fix.
                changes.tryInsertTypeAnnotation(sourceFile, decl, transformJSDocType(jsdocType));
            }
        }
        function isDeclarationWithType(node) {
            return ts.isFunctionLikeDeclaration(node) ||
                node.kind === 254 /* SyntaxKind.VariableDeclaration */ ||