class/class_backend/node_modules/@babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining/lib/index.js.map

{"version":3,"file":"index.js","sources":["../src/util.ts","../src/index.ts"],"sourcesContent":["import { skipTransparentExprWrappers } from \"@babel/helper-skip-transparent-expression-wrappers\";\nimport { types as t, type NodePath } from \"@babel/core\";\n// https://crbug.com/v8/11558\n\n// check if there is a spread element followed by another argument.\n// (...[], 0) or (...[], ...[])\n\nfunction matchAffectedArguments(argumentNodes: t.CallExpression[\"arguments\"]) {\n  const spreadIndex = argumentNodes.findIndex(node => t.isSpreadElement(node));\n  return spreadIndex >= 0 && spreadIndex !== argumentNodes.length - 1;\n}\n\n/**\n * Check whether the optional chain is affected by https://crbug.com/v8/11558.\n * This routine MUST not manipulate NodePath\n *\n * @export\n * @param {(NodePath<t.OptionalMemberExpression | t.OptionalCallExpression>)} path\n * @returns {boolean}\n */\nexport function shouldTransform(\n  path: NodePath<t.OptionalMemberExpression | t.OptionalCallExpression>,\n): boolean {\n  let optionalPath: NodePath<t.Expression> = path;\n  const chains: (t.OptionalCallExpression | t.OptionalMemberExpression)[] = [];\n  for (;;) {\n    if (optionalPath.isOptionalMemberExpression()) {\n      chains.push(optionalPath.node);\n      optionalPath = skipTransparentExprWrappers(optionalPath.get(\"object\"));\n    } else if (optionalPath.isOptionalCallExpression()) {\n      chains.push(optionalPath.node);\n      optionalPath = skipTransparentExprWrappers(optionalPath.get(\"callee\"));\n    } else {\n      break;\n    }\n  }\n  for (let i = 0; i < chains.length; i++) {\n    const node = chains[i];\n    if (\n      t.isOptionalCallExpression(node) &&\n      matchAffectedArguments(node.arguments)\n    ) {\n      // f?.(...[], 0)\n      if (node.optional) {\n        return true;\n      }\n      // o?.m(...[], 0)\n      // when node.optional is false, chains[i + 1] is always well defined\n      const callee = chains[i + 1];\n      if (t.isOptionalMemberExpression(callee, { optional: true })) {\n        return true;\n      }\n    }\n  }\n  return false;\n}\n","import { declare } from \"@babel/helper-plugin-utils\";\nimport { transform } from \"@babel/plugin-transform-optional-chaining\";\nimport { shouldTransform } from \"./util.ts\";\nimport type { NodePath, types as t } from \"@babel/core\";\n\nexport default declare(api => {\n  api.assertVersion(REQUIRED_VERSION(7));\n\n  const noDocumentAll = api.assumption(\"noDocumentAll\") ?? 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