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{
"version": 3,
"names": [
"generateRegexpuOptions",
"pattern",
"toTransform",
"feat",
"name",
"ok",
"hasFeature",
"FEATURES",
"featDuplicateNamedGroups",
"regex",
"seen",
"Set",
"match",
"exec",
"add",
"has",
"unicodeFlag",
"unicodeSetsFlag",
"dotAllFlag",
"unicodePropertyEscapes",
"namedGroups",
"onNamedGroup",
"canSkipRegexpu",
"node",
"options",
"flags",
"includes",
"test",
"transformFlags",
"regexpuOptions",
"replace"
],
"sources": [
"../src/util.ts"
],
"sourcesContent": [
"import type { types as t } from \"@babel/core\";\nimport { FEATURES, hasFeature } from \"./features\";\n\nimport type { RegexpuOptions } from \"regexpu-core\";\n\nexport function generateRegexpuOptions(\n pattern: string,\n toTransform: number,\n): RegexpuOptions {\n type Experimental = 1;\n\n const feat = <Stability extends 0 | 1 = 0>(\n name: keyof typeof FEATURES,\n ok: \"transform\" | (Stability extends 0 ? never : \"parse\") = \"transform\",\n ) => {\n return hasFeature(toTransform, FEATURES[name]) ? ok : false;\n };\n\n const featDuplicateNamedGroups = (): \"transform\" | false => {\n if (!feat(\"duplicateNamedCaptureGroups\")) return false;\n\n // This can return false positive, for example for /\\(?<a>\\)/.\n // However, it's such a rare occurrence that it's ok to compile\n // the regexp even if we only need to compile regexps with\n // duplicate named capturing groups.\n const regex = /\\(\\?<([^>]+)>/g;\n const seen = new Set();\n for (let match; (match = regex.exec(pattern)); seen.add(match[1])) {\n if (seen.has(match[1])) return \"transform\";\n }\n return false;\n };\n\n return {\n unicodeFlag: feat(\"unicodeFlag\"),\n unicodeSetsFlag:\n feat<Experimental>(\"unicodeSetsFlag\") ||\n feat<Experimental>(\"unicodeSetsFlag_syntax\", \"parse\"),\n dotAllFlag: feat(\"dotAllFlag\"),\n unicodePropertyEscapes: feat(\"unicodePropertyEscape\"),\n namedGroups: feat(\"namedCaptureGroups\") || featDuplicateNamedGroups(),\n onNamedGroup: () => {},\n };\n}\n\nexport function canSkipRegexpu(\n node: t.RegExpLiteral,\n options: RegexpuOptions,\n): boolean {\n const { flags, pattern } = node;\n\n if (flags.includes(\"v\")) {\n if (options.unicodeSetsFlag === \"transform\") return false;\n }\n\n if (flags.includes(\"u\")) {\n if (options.unicodeFlag === \"transform\") return false;\n if (\n options.unicodePropertyEscapes === \"transform\" &&\n /\\\\[pP]{/.test(pattern)\n ) {\n return false;\n }\n }\n\n if (flags.includes(\"s\")) {\n if (options.dotAllFlag === \"transform\") return false;\n }\n\n if (options.namedGroups === \"transform\" && /\\(\\?<(?![=!])/.test(pattern)) {\n return false;\n }\n\n return true;\n}\n\nexport function transformFlags(regexpuOptions: RegexpuOptions, flags: string) {\n if (regexpuOptions.unicodeSetsFlag === \"transform\") {\n flags = flags.replace(\"v\", \"u\");\n }\n if (regexpuOptions.unicodeFlag === \"transform\") {\n flags = flags.replace(\"u\", \"\");\n }\n if (regexpuOptions.dotAllFlag === \"transform\") {\n flags = flags.replace(\"s\", \"\");\n }\n return flags;\n}\n"
],
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