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codeql-action/node_modules/eslint-module-utils/moduleVisitor.js
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'use strict'; | |
exports.__esModule = true; | |
/** | |
* Returns an object of node visitors that will call | |
* 'visitor' with every discovered module path. | |
* | |
* todo: correct function prototype for visitor | |
* @param {Function(String)} visitor [description] | |
* @param {[type]} options [description] | |
* @return {object} | |
*/ | |
exports.default = function visitModules(visitor, options) { | |
// if esmodule is not explicitly disabled, it is assumed to be enabled | |
options = Object.assign({ esmodule: true }, options); | |
let ignoreRegExps = []; | |
if (options.ignore != null) { | |
ignoreRegExps = options.ignore.map((p) => new RegExp(p)); | |
} | |
function checkSourceValue(source, importer) { | |
if (source == null) { return; } //? | |
// handle ignore | |
if (ignoreRegExps.some((re) => re.test(source.value))) { return; } | |
// fire visitor | |
visitor(source, importer); | |
} | |
// for import-y declarations | |
function checkSource(node) { | |
checkSourceValue(node.source, node); | |
} | |
// for esmodule dynamic `import()` calls | |
function checkImportCall(node) { | |
let modulePath; | |
// refs https://github.com/estree/estree/blob/HEAD/es2020.md#importexpression | |
if (node.type === 'ImportExpression') { | |
modulePath = node.source; | |
} else if (node.type === 'CallExpression') { | |
if (node.callee.type !== 'Import') { return; } | |
if (node.arguments.length !== 1) { return; } | |
modulePath = node.arguments[0]; | |
} | |
if (modulePath.type !== 'Literal') { return; } | |
if (typeof modulePath.value !== 'string') { return; } | |
checkSourceValue(modulePath, node); | |
} | |
// for CommonJS `require` calls | |
// adapted from @mctep: https://git.io/v4rAu | |
function checkCommon(call) { | |
if (call.callee.type !== 'Identifier') { return; } | |
if (call.callee.name !== 'require') { return; } | |
if (call.arguments.length !== 1) { return; } | |
const modulePath = call.arguments[0]; | |
if (modulePath.type !== 'Literal') { return; } | |
if (typeof modulePath.value !== 'string') { return; } | |
checkSourceValue(modulePath, call); | |
} | |
function checkAMD(call) { | |
if (call.callee.type !== 'Identifier') { return; } | |
if (call.callee.name !== 'require' && call.callee.name !== 'define') { return; } | |
if (call.arguments.length !== 2) { return; } | |
const modules = call.arguments[0]; | |
if (modules.type !== 'ArrayExpression') { return; } | |
for (const element of modules.elements) { | |
if (element.type !== 'Literal') { continue; } | |
if (typeof element.value !== 'string') { continue; } | |
if ( | |
element.value === 'require' | |
|| element.value === 'exports' | |
) { | |
continue; // magic modules: https://github.com/requirejs/requirejs/wiki/Differences-between-the-simplified-CommonJS-wrapper-and-standard-AMD-define#magic-modules | |
} | |
checkSourceValue(element, element); | |
} | |
} | |
const visitors = {}; | |
if (options.esmodule) { | |
Object.assign(visitors, { | |
ImportDeclaration: checkSource, | |
ExportNamedDeclaration: checkSource, | |
ExportAllDeclaration: checkSource, | |
CallExpression: checkImportCall, | |
ImportExpression: checkImportCall, | |
}); | |
} | |
if (options.commonjs || options.amd) { | |
const currentCallExpression = visitors.CallExpression; | |
visitors.CallExpression = function (call) { | |
if (currentCallExpression) { currentCallExpression(call); } | |
if (options.commonjs) { checkCommon(call); } | |
if (options.amd) { checkAMD(call); } | |
}; | |
} | |
return visitors; | |
}; | |
/** | |
* make an options schema for the module visitor, optionally | |
* adding extra fields. | |
*/ | |
function makeOptionsSchema(additionalProperties) { | |
const base = { | |
type: 'object', | |
properties: { | |
commonjs: { type: 'boolean' }, | |
amd: { type: 'boolean' }, | |
esmodule: { type: 'boolean' }, | |
ignore: { | |
type: 'array', | |
minItems: 1, | |
items: { type: 'string' }, | |
uniqueItems: true, | |
}, | |
}, | |
additionalProperties: false, | |
}; | |
if (additionalProperties) { | |
for (const key in additionalProperties) { | |
base.properties[key] = additionalProperties[key]; | |
} | |
} | |
return base; | |
} | |
exports.makeOptionsSchema = makeOptionsSchema; | |
/** | |
* json schema object for options parameter. can be used to build | |
* rule options schema object. | |
* @type {Object} | |
*/ | |
exports.optionsSchema = makeOptionsSchema(); |