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16 KiB
1 line
16 KiB
4 weeks ago
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{"version":3,"names":["_decorators","require","FEATURES","exports","Object","freeze","fields","privateMethods","decorators","privateIn","staticBlocks","featuresSameLoose","Map","featuresKey","looseKey","looseLowPriorityKey","canIgnoreLoose","file","feature","get","enableFeature","loose","hasFeature","set","setLoose","resolvedLoose","mask","name","isLoose","Error","getBabelShowConfigForHint","higherPriorityPluginName","undefined","console","warn","filename","opts","shouldTransform","path","decoratorPath","publicFieldPath","privateFieldPath","privateMethodPath","staticBlockPath","hasOwnDecorators","node","el","isClassProperty","isClassPrivateProperty","isClassPrivateMethod","isStaticBlock","buildCodeFrameError"],"sources":["../src/features.ts"],"sourcesContent":["import type { File, types as t } from \"@babel/core\";\nimport type { NodePath } from \"@babel/core\";\nimport { hasOwnDecorators } from \"./decorators-2018-09.ts\";\n\nexport const FEATURES = Object.freeze({\n //classes: 1 << 0,\n fields: 1 << 1,\n privateMethods: 1 << 2,\n decorators: 1 << 3,\n privateIn: 1 << 4,\n staticBlocks: 1 << 5,\n});\n\nconst featuresSameLoose = new Map([\n [FEATURES.fields, \"@babel/plugin-transform-class-properties\"],\n [FEATURES.privateMethods, \"@babel/plugin-transform-private-methods\"],\n [FEATURES.privateIn, \"@babel/plugin-transform-private-property-in-object\"],\n]);\n\n// We can't use a symbol because this needs to always be the same, even if\n// this package isn't deduped by npm. e.g.\n// - node_modules/\n// - @babel/plugin-class-features\n// - @babel/plugin-proposal-decorators\n// - node_modules\n// - @babel-plugin-class-features\nconst featuresKey = \"@babel/plugin-class-features/featuresKey\";\nconst looseKey = \"@babel/plugin-class-features/looseKey\";\n\nif (!process.env.BABEL_8_BREAKING) {\n // See https://github.com/babel/babel/issues/11622.\n // Since preset-env sets loose for the fields and private methods plugins, it can\n // cause conflicts with the loose mode set by an explicit plugin in the config.\n // To solve this problem, we ignore preset-env's loose mode if another plugin\n // explicitly sets it\n // The code to handle this logic doesn't check that \"low priority loose\" is always\n // the same. However, it is only set by the preset and not directly by users:\n // unless someone _wants_ to break it, it shouldn't be a problem.\n // eslint-disable-next-line no-var\n var looseLowPriorityKey =\n \"@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing\";\n}\n\nif (!process.env.BABEL_8_BREAKING) {\n // eslint-disable-next-line no-var\n var canIgnoreLoose = function (file: File, feature: number) {\n return !!(file.get(looseLowPriorityKey) & feature);\n };\n}\n\nexport function enableFeature(file: File, feature: number, loose: boolean) {\n // We can't blindly enable the feature because, if it was already set,\n // \"loose\" can't be changed, so that\n // @babel/plugin-class-properties { loose: true }\n // @babel/plugin-class-properties { loose: false }\n // is transformed in loose mode.\n // We only enabled the feature if it was previously disabled.\n if (process.env.BABEL_8_BREAKING) {\n if (!hasFeature(file, feature)) {\n file.set(featuresKey, file.get(featuresKey) | feature);\n setLoose(file, feature, loose);\n }\n } else if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {\n file.set(featuresKey, file.get(featuresKey) | feature);\n if (\n // @ts-expect-error comparing loose with internal private magic string\n loose ===\n \"#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error\"\n ) {\n setLoose(file, feature, true);\n file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);\n } else if (\n // @ts-expect-error comparing loose with internal private magic string\n loose ===\n \"#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error\"
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