Regenerating node_modules

node_modules/eslint-module-utils/moduleVisitor.js

@@ -0,0 +1,141 @@
+'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) {
+    if (node.callee.type !== 'Import') return
+    if (node.arguments.length !== 1) return
+
+    const 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: http://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 (let 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: http://git.io/vByan
+
+      checkSourceValue(element, element)
+    }
+  }
+
+  const visitors = {}
+  if (options.esmodule) {
+    Object.assign(visitors, {
+      'ImportDeclaration': checkSource,
+      'ExportNamedDeclaration': checkSource,
+      'ExportAllDeclaration': checkSource,
+      'CallExpression': 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 (let 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()