dependency-cruiser/src/extract/acorn/extract-amd-deps.mjs

Validate and visualize dependencies. With your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

import { simple as walk_simple, base as walk_base } from "acorn-walk";
import extractCommonJSDependencies from "./extract-cjs-deps.mjs";
import {
	isLikelyAMDDefineOrRequire,
	isLikelyAMDDefine,
} from "./estree-helpers.mjs";

function extractRegularAMDDependencies(pNode, pDependencies) {
	if (isLikelyAMDDefineOrRequire(pNode)) {
		const lArrayExpressionArguments = pNode.expression.arguments.filter(
			(pArgument) => pArgument.type === "ArrayExpression",
		);

		for (const lArgument of lArrayExpressionArguments) {
			for (const lElement of lArgument.elements) {
				// eslint-disable-next-line max-depth
				if (lElement.value && typeof lElement.value === "string") {
					pDependencies.push({
						module: lElement.value,
						moduleSystem: "amd",
						dynamic: false,
						exoticallyRequired: false,
						dependencyTypes: ["amd-define"],
					});
				}
			}
		}
	}
}

function extractCommonJSWrappers(pNode, pDependencies, pExoticRequireStrings) {
	if (isLikelyAMDDefine(pNode)) {
		for (const lArgument of pNode.expression.arguments) {
			if (
				lArgument.type === "FunctionExpression" &&
				lArgument.params.some(
					(pParameter) =>
						pParameter.name === "require" ||
						pExoticRequireStrings.includes(pParameter.name),
				)
			) {
				extractCommonJSDependencies(
					lArgument.body,
					pDependencies,
					"amd",
					pExoticRequireStrings,
				);
			}
		}
	}
}

export default function extractAMDDependencies(
	pAST,
	pDependencies,
	pExoticRequireStrings,
) {
	walk_simple(
		pAST,
		{
			ExpressionStatement: (pNode) => {
				// module as a function (define(Array, function))
				// module with a name (define(string, Array, function))
				// 'root' require module (require(Array, function)
				extractRegularAMDDependencies(pNode, pDependencies);
				// CommonJS-wrappers:
				//  (define(function(require, exports, module){
				//  define(["require", ...], function(require, ...){
				//      ... every 'require' call is a depencency
				// Won't work if someone decides to name the first parameter of
				// the function passed to the define something else from "require"
				extractCommonJSWrappers(pNode, pDependencies, pExoticRequireStrings);
			},
		},
		// see https://github.com/acornjs/acorn/issues/746
		walk_base,
	);
}