GoScrobble/web/node_modules/@babel/plugin-proposal-optional-chaining/lib/index.js.map

{"version":3,"file":"index.js","sources":["../src/util.js","../src/transform.js","../src/index.js"],"sourcesContent":["import { isTransparentExprWrapper } from \"@babel/helper-skip-transparent-expression-wrappers\";\n/**\n * Test if a NodePath will be cast to boolean when evaluated.\n * It respects transparent expression wrappers defined in\n * \"@babel/helper-skip-transparent-expression-wrappers\"\n *\n * @example\n * // returns true\n * const nodePathADotB = NodePath(\"if (a.b) {}\").get(\"test\"); // a.b\n * willPathCastToBoolean(nodePathADotB)\n * @example\n * // returns false\n * willPathCastToBoolean(NodePath(\"a.b\"))\n * @param {NodePath} path\n * @returns {boolean}\n */\nexport function willPathCastToBoolean(path: NodePath): boolean {\n  const maybeWrapped = findOutermostTransparentParent(path);\n  const { node, parentPath } = maybeWrapped;\n  if (parentPath.isLogicalExpression()) {\n    const { operator, right } = parentPath.node;\n    if (\n      operator === \"&&\" ||\n      operator === \"||\" ||\n      (operator === \"??\" && node === right)\n    ) {\n      return willPathCastToBoolean(parentPath);\n    }\n  }\n  if (parentPath.isSequenceExpression()) {\n    const { expressions } = parentPath.node;\n    if (expressions[expressions.length - 1] === node) {\n      return willPathCastToBoolean(parentPath);\n    } else {\n      // if it is in the middle of a sequence expression, we don't\n      // care the return value so just cast to boolean for smaller\n      // output\n      return true;\n    }\n  }\n  return (\n    parentPath.isConditional({ test: node }) ||\n    parentPath.isUnaryExpression({ operator: \"!\" }) ||\n    parentPath.isLoop({ test: node })\n  );\n}\n\n/**\n * Return the outermost transparent expression wrapper of a given path,\n * otherwise returns path itself.\n * @example\n * const nodePathADotB = NodePath(\"(a.b as any)\").get(\"expression\"); // a.b\n * // returns NodePath(\"(a.b as any)\")\n * findOutermostTransparentParent(nodePathADotB);\n * @param {NodePath} path\n * @returns {NodePath}\n */\nexport function findOutermostTransparentParent(path: NodePath): NodePath {\n  let maybeWrapped = path;\n  path.findParent(p => {\n    if (!isTransparentExprWrapper(p)) return true;\n    maybeWrapped = p;\n  });\n  return maybeWrapped;\n}\n","import { types as t, template } from \"@babel/core\";\nimport {\n  isTransparentExprWrapper,\n  skipTransparentExprWrappers,\n} from \"@babel/helper-skip-transparent-expression-wrappers\";\nimport { willPathCastToBoolean, findOutermostTransparentParent } from \"./util\";\n\nconst { ast } = template.expression;\n\nfunction isSimpleMemberExpression(expression) {\n  expression = skipTransparentExprWrappers(expression);\n  return (\n    t.isIdentifier(expression) ||\n    t.isSuper(expression) ||\n    (t.isMemberExpression(expression) &&\n      !expression.computed &&\n      isSimpleMemberExpression(expression.object))\n  );\n}\n\n/**\n * Test if a given optional chain `path` needs to be memoized\n * @param {NodePath} path\n * @returns {boolean}\n */\nfunction needsMemoize(path) {\n  let optionalPath = path;\n  const { scope } = path;\n  while (\n    optionalPath.isOptionalMemberExpression() ||\n    optionalPath.isOptionalCallExpression()\n  ) {\n    const { node } = optionalPath;\n    const childKey = optionalPath.isOptionalMemberExpression()\n      ? \"object\"\n      : \"callee\";\n    const childPath = skipTransparentExprWrappers(optionalPath.get(childKey));\n    if (node.optional) {\n      return !scope.isStatic(childPath.node);\n    }\n\n    optionalPath = childPath;\n  }\n}\n\nexport function transform(\n  path: NodePath<t.OptionalCallExpression | t.OptionalMemberExpression>,\n  {\n    pureGetters,\n    noDocumentAll,\n  }: { pureGetters: boolean, noDocumentAll: boolean },\n) {\n  const { scope } = path;\n  // maybeWrapped points to the outermost transparent expression wrapper\n  // or the path itself\n  const maybeWrapped = findOutermostTransparentParent(path);\n  const { parentPath } = maybeWrapped;\n  const willReplacementCastToBoolean = willPathCastToBoo