hatch-surf/node_modules/eslint/lib/linter/source-code-visitor.js
Riley Zhang df378d33ef
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Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-06-25 05:20:46 +02:00

82 lines
2.1 KiB
JavaScript

/**
* @fileoverview SourceCodeVisitor class
* @author Nicholas C. Zakas
*/
"use strict";
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
const emptyArray = Object.freeze([]);
//------------------------------------------------------------------------------
// Exports
//------------------------------------------------------------------------------
/**
* A structure to hold a list of functions to call for a given name.
* This is used to allow multiple rules to register functions for a given name
* without having to know about each other.
*/
class SourceCodeVisitor {
/**
* The functions to call for a given name.
* @type {Map<string, Function[]>}
*/
#functions = new Map();
/**
* Adds a function to the list of functions to call for a given name.
* @param {string} name The name of the function to call.
* @param {Function} func The function to call.
* @returns {void}
*/
add(name, func) {
if (this.#functions.has(name)) {
this.#functions.get(name).push(func);
} else {
this.#functions.set(name, [func]);
}
}
/**
* Gets the list of functions to call for a given name.
* @param {string} name The name of the function to call.
* @returns {Function[]} The list of functions to call.
*/
get(name) {
if (this.#functions.has(name)) {
return this.#functions.get(name);
}
return emptyArray;
}
/**
* Iterates over all names and calls the callback with the name.
* @param {(name:string) => void} callback The callback to call for each name.
* @returns {void}
*/
forEachName(callback) {
this.#functions.forEach((funcs, name) => {
callback(name);
});
}
/**
* Calls the functions for a given name with the given arguments.
* @param {string} name The name of the function to call.
* @param {any[]} args The arguments to pass to the function.
* @returns {void}
*/
callSync(name, ...args) {
if (this.#functions.has(name)) {
this.#functions.get(name).forEach(func => func(...args));
}
}
}
module.exports = { SourceCodeVisitor };