bit-bin/dist/consumer/component/dependencies/files-dependency-builder/detectives/parser-helper.js

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"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getDependenciesFromMemberExpression = getDependenciesFromMemberExpression;
exports.getDependenciesFromCallExpression = getDependenciesFromCallExpression;
exports.getSpecifierValueForImportDeclaration = getSpecifierValueForImportDeclaration;

function getDependenciesFromMemberExpression(node) {
  if (node.object.type === 'CallExpression' && node.object.callee.type === 'Identifier' && node.object.callee.name === 'require' && node.object.arguments && node.object.arguments.length) {
    return getStringValue(node.object.arguments[0]);
  }

  return null;
}

function getDependenciesFromCallExpression(node) {
  if (node.callee.type === 'Import' && node.arguments.length && node.arguments[0].value) {
    return node.arguments[0].value;
  }

  if (node.callee.type === 'Identifier' && // taken from detective-cjs
  node.callee.name === 'require' && node.arguments && node.arguments.length) {
    return getStringValue(node.arguments[0]);
  }

  return null;
}

function getSpecifierValueForImportDeclaration(specifier) {
  return {
    isDefault: specifier.type === 'ImportDefaultSpecifier',
    // syntax of `import x from 'file'` doesn't have specifier.imported, only specifier.local
    // syntax of `import { x as y } from 'file'`, has `x` as specifier.imported and `y` as
    // specifier.local. we interested in `x` in this case.
    name: specifier.imported ? specifier.imported.name : specifier.local.name
  };
}

function getStringValue(node) {
  // using single or double quotes (', ")
  if (node.type === 'Literal' || node.type === 'StringLiteral') {
    return node.value;
  } // using apostrophe (`)


  if (node.type === 'TemplateLiteral' && node.quasis && node.quasis.length && node.quasis[0].type === 'TemplateElement') {
    return node.quasis[0].value.raw;
  }

  return null;
}