| 1 | {"version":3,"names":["_estree","require","_flow","_jsx","_typescript","_placeholders","_v8intrinsic","hasPlugin","plugins","expectedConfig","expectedName","expectedOptions","expectedKeys","Object","keys","expectedOptionsIsEmpty","length","some","p","pluginName","pluginOptions","key","getPluginOption","name","option","plugin","find","Array","isArray","PIPELINE_PROPOSALS","TOPIC_TOKENS","RECORD_AND_TUPLE_SYNTAX_TYPES","validatePlugins","Error","decoratorsBeforeExport","allowCallParenthesized","proposal","includes","proposalList","map","join","tupleSyntaxIsHash","syntaxType","topicToken","tokenList","t","moduleAttributesVersionPluginOption","error","missingPlugins","mixinPlugins","estree","jsx","flow","typescript","v8intrinsic","placeholders","exports","mixinPluginNames"],"sources":["../src/plugin-utils.ts"],"sourcesContent":["import type Parser from \"./parser\";\nimport type {\n ParserPluginWithOptions,\n PluginConfig,\n PluginOptions,\n} from \"./typings\";\n\nexport type Plugin = PluginConfig;\n\nexport type PluginList = PluginConfig[];\n\nexport type MixinPlugin = (superClass: { new (...args: any): Parser }) => {\n new (...args: any): Parser;\n};\n\n// This function’s second parameter accepts either a string (plugin name) or an\n// array pair (plugin name and options object). If an options object is given,\n// then each value is non-recursively checked for identity with the actual\n// option value of each plugin in the first argument (which is an array of\n// plugin names or array pairs).\nexport function hasPlugin(\n plugins: PluginList,\n expectedConfig: PluginConfig,\n): boolean {\n // The expectedOptions object is by default an empty object if the given\n // expectedConfig argument does not give an options object (i.e., if it is a\n // string).\n const [expectedName, expectedOptions] =\n typeof expectedConfig === \"string\" ? [expectedConfig, {}] : expectedConfig;\n\n const expectedKeys = Object.keys(expectedOptions);\n\n const expectedOptionsIsEmpty = expectedKeys.length === 0;\n\n return plugins.some(p => {\n if (typeof p === \"string\") {\n return expectedOptionsIsEmpty && p === expectedName;\n } else {\n const [pluginName, pluginOptions] = p;\n if (pluginName !== expectedName) {\n return false;\n }\n for (const key of expectedKeys) {\n // @ts-expect-error key may not exist in plugin options\n if (pluginOptions[key] !== expectedOptions[key]) {\n return false;\n }\n }\n return true;\n }\n });\n}\n\nexport function getPluginOption<\n PluginName extends ParserPluginWithOptions[0],\n OptionName extends keyof PluginOptions<PluginName>,\n>(plugins: PluginList, name: PluginName, option: OptionName) {\n const plugin = plugins.find(plugin => {\n if (Array.isArray(plugin)) {\n return plugin[0] === name;\n } else {\n return plugin === name;\n }\n });\n\n if (plugin && Array.isArray(plugin) && plugin.length > 1) {\n return (plugin[1] as PluginOptions<PluginName>)[option];\n }\n\n return null;\n}\n\nconst PIPELINE_PROPOSALS = [\"minimal\", \"fsharp\", \"hack\", \"smart\"];\nconst TOPIC_TOKENS = [\"^^\", \"@@\", \"^\", \"%\", \"#\"];\nconst RECORD_AND_TUPLE_SYNTAX_TYPES = [\"hash\", \"bar\"];\n\nexport function validatePlugins(plugins: PluginList) {\n if (hasPlugin(plugins, \"decorators\")) {\n if (hasPlugin(plugins, \"decorators-legacy\")) {\n throw new Error(\n \"Cannot use the decorators and decorators-legacy plugin together\",\n );\n }\n\n const decoratorsBeforeExport = getPluginOption(\n plugins,\n \"decorators\",\n \"decoratorsBeforeExport\",\n );\n if (\n decoratorsBeforeExport != null &&\n typeof decoratorsBeforeExport !== \"boolean\"\n ) {\n throw new Error(\n \"'decoratorsBeforeExport' must be a boolean, if specified.\",\n );\n }\n\n const allowCallParenthesized = getPluginOption(\n plugins,\n \"decorators\",\n \"allowCallParenthesized\",\n );\n if (\n allowCallParenthesized != null &&\n typeof allowCallParenthesized !== \"boolean\"\n ) {\n throw new Error(\"'allowCallParenthesized' must be a boolean.\");\n }\n }\n\n if (hasPlugin(plugins, \"flow\") && hasPlugin(plugins, \"typescript\")) {\n throw new Error(\"Cannot combine flow and typescript plugins.\");\n }\n\n if (hasPlugin(plugins, \"placeholders\") && hasPlugin(plugins, \"v8intrinsic\")) {\n throw new Error(\"Cannot combine placeholders and v8intrinsic plugins.\");\n }\n\n if (hasPlugin(plugins, \"pipelineOperator\")) {\n const proposal = getPluginOption(plugins, \"pipelineOperator\", \"proposal\");\n\n if (!PIPELINE_PROPOSALS.includes(proposal)) {\n const proposalList = PIPELINE_PROPOSALS.map(p => `\"${p}\"`).join(\", \");\n throw new Error(\n `\"pipelineOperator\" requires \"proposal\" option whose value must be one of: ${proposalList}.`,\n );\n }\n\n const tupleSyntaxIsHash = hasPlugin(plugins, [\n \"recordAndTuple\",\n { syntaxType: \"hash\" },\n ]);\n\n if (proposal === \"hack\") {\n if (hasPlugin(plugins, \"placeholders\")) {\n throw new Error(\n \"Cannot combine placeholders plugin and Hack-style pipes.\",\n );\n }\n\n if (hasPlugin(plugins, \"v8intrinsic\")) {\n throw new Error(\n \"Cannot combine v8intrinsic plugin and Hack-style pipes.\",\n );\n }\n\n const topicToken = getPluginOption(\n plugins,\n \"pipelineOperator\",\n \"topicToken\",\n );\n\n if (!TOPIC_TOKENS.includes(topicToken)) {\n const tokenList = TOPIC_TOKENS.map(t => `\"${t}\"`).join(\", \");\n\n throw new Error(\n `\"pipelineOperator\" in \"proposal\": \"hack\" mode also requires a \"topicToken\" option whose value must be one of: ${tokenList}.`,\n );\n }\n\n if (topicToken === \"#\" && tupleSyntaxIsHash) {\n throw new Error(\n 'Plugin conflict between `[\"pipelineOperator\", { proposal: \"hack\", topicToken: \"#\" }]` and `[\"recordAndtuple\", { syntaxType: \"hash\"}]`.',\n );\n }\n } else if (proposal === \"smart\" && tupleSyntaxIsHash) {\n throw new Error(\n 'Plugin conflict between `[\"pipelineOperator\", { proposal: \"smart\" }]` and `[\"recordAndtuple\", { syntaxType: \"hash\"}]`.',\n );\n }\n }\n\n if (hasPlugin(plugins, \"moduleAttributes\")) {\n if (process.env.BABEL_8_BREAKING) {\n throw new Error(\n \"`moduleAttributes` has been removed in Babel 8, please use `importAttributes` parser plugin, or `@babel/plugin-syntax-import-attributes`.\",\n );\n } else {\n if (\n hasPlugin(plugins, \"importAssertions\") ||\n hasPlugin(plugins, \"importAttributes\")\n ) {\n throw new Error(\n \"Cannot combine importAssertions, importAttributes and moduleAttributes plugins.\",\n );\n }\n const moduleAttributesVersionPluginOption = getPluginOption(\n plugins,\n \"moduleAttributes\",\n \"version\",\n );\n if (moduleAttributesVersionPluginOption !== \"may-2020\") {\n throw new Error(\n \"The 'moduleAttributes' plugin requires a 'version' option,\" +\n \" representing the last proposal update. Currently, the\" +\n \" only supported value is 'may-2020'.\",\n );\n }\n }\n }\n if (\n hasPlugin(plugins, \"importAssertions\") &&\n hasPlugin(plugins, \"importAttributes\")\n ) {\n throw new Error(\n \"Cannot combine importAssertions and importAttributes plugins.\",\n );\n }\n\n if (\n hasPlugin(plugins, \"recordAndTuple\") &&\n getPluginOption(plugins, \"recordAndTuple\", \"syntaxType\") != null &&\n !RECORD_AND_TUPLE_SYNTAX_TYPES.includes(\n getPluginOption(plugins, \"recordAndTuple\", \"syntaxType\"),\n )\n ) {\n throw new Error(\n \"The 'syntaxType' option of the 'recordAndTuple' plugin must be one of: \" +\n RECORD_AND_TUPLE_SYNTAX_TYPES.map(p => `'${p}'`).join(\", \"),\n );\n }\n\n if (\n hasPlugin(plugins, \"asyncDoExpressions\") &&\n !hasPlugin(plugins, \"doExpressions\")\n ) {\n const error = new Error(\n \"'asyncDoExpressions' requires 'doExpressions', please add 'doExpressions' to parser plugins.\",\n );\n // @ts-expect-error so @babel/core can provide better error message\n error.missingPlugins = \"doExpressions\";\n throw error;\n }\n}\n\n// These plugins are defined using a mixin which extends the parser class.\n\nimport estree from \"./plugins/estree\";\nimport flow from \"./plugins/flow\";\nimport jsx from \"./plugins/jsx\";\nimport typescript from \"./plugins/typescript\";\nimport placeholders from \"./plugins/placeholders\";\nimport v8intrinsic from \"./plugins/v8intrinsic\";\n\n// NOTE: order is important. estree must come first; placeholders must come last.\nexport const mixinPlugins = {\n estree,\n jsx,\n flow,\n typescript,\n v8intrinsic,\n placeholders,\n};\n\nexport const mixinPluginNames = Object.keys(mixinPlugins) as ReadonlyArray<\n \"estree\" | \"jsx\" | \"flow\" | \"typescript\" | \"v8intrinsic\" | 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