DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
95 lines
2.3 KiB
Text
95 lines
2.3 KiB
Text
/**
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* @license
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* Copyright 2023 Google Inc.
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* SPDX-License-Identifier: Apache-2.0
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*/
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const createdFunctions = new Map<string, (...args: unknown[]) => unknown>();
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/**
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* Creates a function from a string.
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*
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* @internal
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*/
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export const createFunction = (
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functionValue: string,
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): ((...args: unknown[]) => unknown) => {
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let fn = createdFunctions.get(functionValue);
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if (fn) {
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return fn;
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}
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fn = new Function(`return ${functionValue}`)() as (
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...args: unknown[]
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) => unknown;
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createdFunctions.set(functionValue, fn);
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return fn;
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};
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/**
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* @internal
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*/
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export function stringifyFunction(fn: (...args: never) => unknown): string {
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let value = fn.toString();
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if (
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value.match(/^(async )*function(\(|\s)/) ||
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value.match(/^(async )*function\s*\*\s*/)
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) {
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return value;
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}
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const isArrow =
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value.startsWith('(') ||
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value.match(/^async\s*\(/) ||
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value.match(
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/^(async)*\s*(?:[$_\p{ID_Start}])(?:[$\u200C\u200D\p{ID_Continue}])*\s*=>/u,
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);
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if (isArrow) {
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return value;
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}
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// This means we might have a function shorthand (e.g. `test(){}`). Let's
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// try prefixing.
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let prefix = 'function ';
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if (value.startsWith('async ')) {
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prefix = `async ${prefix}`;
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value = value.substring('async '.length);
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}
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return `${prefix}${value}`;
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}
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/**
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* Replaces `PLACEHOLDER`s with the given replacements.
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*
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* All replacements must be valid JS code.
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*
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* @example
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*
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* ```ts
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* interpolateFunction(() => PLACEHOLDER('test'), {test: 'void 0'});
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* // Equivalent to () => void 0
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* ```
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*
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* @internal
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*/
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export const interpolateFunction = <T extends (...args: never[]) => unknown>(
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fn: T,
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replacements: Record<string, string>,
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): T => {
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let value = stringifyFunction(fn);
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for (const [name, jsValue] of Object.entries(replacements)) {
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value = value.replace(
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new RegExp(`PLACEHOLDER\\(\\s*(?:'${name}'|"${name}")\\s*\\)`, 'g'),
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// Wrapping this ensures tersers that accidentally inline PLACEHOLDER calls
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// are still valid. Without, we may get calls like ()=>{...}() which is
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// not valid.
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`(${jsValue})`,
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);
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}
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return createFunction(value) as unknown as T;
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};
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declare global {
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/**
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* Used for interpolation with {@link interpolateFunction}.
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*
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* @internal
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*/
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function PLACEHOLDER<T>(name: string): T;
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}
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