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14 KiB
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14 KiB
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{"version":3,"names":["_template","require","_t","NOT_LOCAL_BINDING","cloneNode","identifier","isAssignmentExpression","isAssignmentPattern","isFunction","isIdentifier","isLiteral","isNullLiteral","isObjectMethod","isObjectProperty","isRegExpLiteral","isRestElement","isTemplateLiteral","isVariableDeclarator","toBindingIdentifierName","getFunctionArity","node","count","params","findIndex","param","length","buildPropertyMethodAssignmentWrapper","template","statement","buildGeneratorPropertyMethodAssignmentWrapper","visitor","ReferencedIdentifier|BindingIdentifier","path","state","name","localDeclar","scope","getBindingIdentifier","outerDeclar","selfReference","stop","getNameFromLiteralId","id","pattern","flags","quasis","map","quasi","value","raw","join","undefined","wrap","method","hasBinding","hasGlobal","rename","build","generator","FUNCTION","FUNCTION_ID","FUNCTION_KEY","generateUidIdentifier","expression","callee","body","i","len","push","getProgramParent","references","visit","selfAssignment","binding","getOwnBinding","kind","traverse","_default","parent","localBinding","supportUnicodeId","computed","key","getBinding","constant","operator","left","test","newId"],"sources":["../src/index.ts"],"sourcesContent":["import template from \"@babel/template\";\nimport {\n NOT_LOCAL_BINDING,\n cloneNode,\n identifier,\n isAssignmentExpression,\n isAssignmentPattern,\n isFunction,\n isIdentifier,\n isLiteral,\n isNullLiteral,\n isObjectMethod,\n isObjectProperty,\n isRegExpLiteral,\n isRestElement,\n isTemplateLiteral,\n isVariableDeclarator,\n toBindingIdentifierName,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type { NodePath, Scope, Visitor } from \"@babel/traverse\";\n\nfunction getFunctionArity(node: t.Function): number {\n const count = node.params.findIndex(\n param => isAssignmentPattern(param) || isRestElement(param),\n );\n return count === -1 ? node.params.length : count;\n}\n\nconst buildPropertyMethodAssignmentWrapper = template.statement(`\n (function (FUNCTION_KEY) {\n function FUNCTION_ID() {\n return FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n }\n\n return FUNCTION_ID;\n })(FUNCTION)\n`);\n\nconst buildGeneratorPropertyMethodAssignmentWrapper = template.statement(`\n (function (FUNCTION_KEY) {\n function* FUNCTION_ID() {\n return yield* FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n };\n\n return FUNCTION_ID;\n })(FUNCTION)\n`);\n\ntype State = {\n name: string;\n outerDeclar: t.Identifier;\n selfAssignment: boolean;\n selfReference: boolean;\n};\n\nconst visitor: Visitor<State> = {\n \"ReferencedIdentifier|BindingIdentifier\"(\n path: NodePath<t.Identifier>,\n state,\n ) {\n // check if this node matches our function id\n if (path.node.name !== state.name) return;\n\n // check that we don't have a local variable declared as that removes the need\n // for the wrapper\n const localDeclar = path.scope.getBindingIdentifier(state.name);\n if (localDeclar !== state.outerDeclar) return;\n\n state.selfReference = true;\n path.stop();\n },\n};\n\nfunction getNameFromLiteralId(id: t.Literal) {\n if (isNullLiteral(id)) {\n return \"null\";\n }\n\n if (isRegExpLiteral(id)) {\n return `_${id.pattern}_${id.flags}`;\n }\n\n if (isTemplateLiteral(id)) {\n return id.quasis.map(quasi => quasi.value.raw).join(\"\");\n }\n\n if (id.value !== undefined) {\n return id.value + \"\";\n }\n\n return \"\";\n}\n\nfunction wrap(\n state: State,\n method: t.FunctionExpression | t.Class,\n id: t.Identifier,\n scope: Scope,\n) {\n if (state.selfReference) {\n if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) {\n // we can just munge the local binding\n scope.rename(id.name);\n } else {\n // we don't currently support wrapping class expressions\n if (!isFunction(method)) return;\n\n // nee
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