1 line
No EOL
12 KiB
Text
Executable file
1 line
No EOL
12 KiB
Text
Executable file
{"version":3,"names":["_core","require","_shadowUtils","buildDefaultParam","template","statement","buildLooseDefaultParam","buildLooseDestructuredDefaultParam","buildSafeArgumentsAccess","convertFunctionParams","path","ignoreFunctionLength","shouldTransformParam","replaceRestElement","params","get","isSimpleParameterList","every","param","isIdentifier","node","scope","body","shadowedParams","Set","collectShadowedParamsNames","state","needsOuterBinding","size","traverse","iifeVisitor","firstOptionalIndex","i","length","transformedRestNodes","paramIsAssignmentPattern","isAssignmentPattern","t","isMethod","kind","left","right","undefinedNode","buildUndefinedNode","push","ASSIGNMENT_IDENTIFIER","cloneNode","DEFAULT_VALUE","UNDEFINED","replaceWith","isObjectPattern","isArrayPattern","paramName","generateUidIdentifier","PARAMETER_NAME","defNode","VARIABLE_NAME","ARGUMENT_KEY","numericLiteral","uid","typeAnnotation","variableDeclaration","variableDeclarator","transformedNode","slice","ensureBlock","async","generator","buildScopeIIFE","set","blockStatement","bodyPath","arrowPath","arrowFunctionToExpression","ast","unshiftContainer"],"sources":["../src/params.ts"],"sourcesContent":["import { template, types as t } from \"@babel/core\";\nimport type { NodePath } from \"@babel/traverse\";\n\nimport {\n iifeVisitor,\n collectShadowedParamsNames,\n buildScopeIIFE,\n} from \"./shadow-utils.ts\";\n\nconst buildDefaultParam = template.statement(`\n let VARIABLE_NAME =\n arguments.length > ARGUMENT_KEY && arguments[ARGUMENT_KEY] !== undefined ?\n arguments[ARGUMENT_KEY]\n :\n DEFAULT_VALUE;\n`);\n\nconst buildLooseDefaultParam = template.statement(`\n if (ASSIGNMENT_IDENTIFIER === UNDEFINED) {\n ASSIGNMENT_IDENTIFIER = DEFAULT_VALUE;\n }\n`);\n\nconst buildLooseDestructuredDefaultParam = template.statement(`\n let ASSIGNMENT_IDENTIFIER = PARAMETER_NAME === UNDEFINED ? DEFAULT_VALUE : PARAMETER_NAME ;\n`);\n\nconst buildSafeArgumentsAccess = template.statement(`\n let $0 = arguments.length > $1 ? arguments[$1] : undefined;\n`);\n\n// last 2 parameters are optional -- they are used by transform-object-rest-spread/src/index.js\nexport default function convertFunctionParams(\n path: NodePath<t.Function>,\n ignoreFunctionLength: boolean | void,\n shouldTransformParam?: (index: number) => boolean,\n replaceRestElement?: (\n path: NodePath<t.Function>,\n paramPath: NodePath<t.Function[\"params\"][number]>,\n transformedRestNodes: t.Statement[],\n ) => void,\n) {\n const params = path.get(\"params\");\n\n const isSimpleParameterList = params.every(param => param.isIdentifier());\n if (isSimpleParameterList) return false;\n\n const { node, scope } = path;\n\n const body = [];\n const shadowedParams = new Set<string>();\n\n for (const param of params) {\n collectShadowedParamsNames(param, scope, shadowedParams);\n }\n\n const state = {\n needsOuterBinding: false,\n scope,\n };\n if (shadowedParams.size === 0) {\n for (const param of params) {\n if (!param.isIdentifier()) param.traverse(iifeVisitor, state);\n if (state.needsOuterBinding) break;\n }\n }\n\n let firstOptionalIndex = null;\n\n for (let i = 0; i < params.length; i++) {\n const param = params[i];\n\n if (shouldTransformParam && !shouldTransformParam(i)) {\n continue;\n }\n const transformedRestNodes: t.Statement[] = [];\n if (replaceRestElement) {\n replaceRestElement(path, param, transformedRestNodes);\n }\n\n const paramIsAssignmentPattern = param.isAssignmentPattern();\n if (\n paramIsAssignmentPattern &&\n (ignoreFunctionLength || t.isMethod(node, { kind: \"set\" }))\n ) {\n const left = param.get(\"left\");\n const right = param.get(\"right\");\n\n const undefinedNode = scope.buildUndefinedNode();\n\n if (left.isIdentifier()) {\n body.push(\n buildLooseDefaultParam({\n ASSIGNMENT_IDENTIFIER: t.cloneNode(left.node),\n DEFAULT_VALUE: right.node,\n UNDEFINED: undefinedNode,\n }),\n );\n param.replaceWith(left.node);\n } else if (left.isObjectPattern() || left.isArrayPattern()) {\n const paramName = scope.generateUidIdentifier();\n body.push(\n buildLooseDestructuredDefaultParam({\n ASSIGNMENT_IDENTIFIER: left.node,\n DEFAULT_VALUE: right.node,\n PARAMETER_NAME: t.cloneNode(paramName),\n UNDEFINED: undefinedNode,\n }),\n );\n param.replaceWith(paramName);\n }\n } else if (paramIsAssignmentPattern) {\n if (firstOptionalIndex === null) firstOptionalIndex = i;\n\n const left = param.get(\"left\");\n const right = param.get(\"right\");\n\n const defNode = buildDefaultParam({\n VARIABLE_NAME: left.node,\n DEFAULT_VALUE: right.node,\n ARGUMENT_KEY: t.numericLiteral(i),\n });\n body.push(defNode);\n } else if (firstOptionalIndex !== null) {\n const defNode = buildSafeArgumentsAccess([\n param.node,\n t.numericLiteral(i),\n ]);\n body.push(defNode);\n } else if (param.isObjectPattern() || param.isArrayPattern()) {\n const uid = path.scope.generateUidIdentifier(\"ref\");\n uid.typeAnnotation = param.node.typeAnnotation;\n\n const defNode = t.variableDeclaration(\"let\", [\n t.variableDeclarator(param.node, uid),\n ]);\n body.push(defNode);\n\n param.replaceWith(t.cloneNode(uid));\n }\n\n if (transformedRestNodes) {\n for (const transformedNode of transformedRestNodes) {\n body.push(transformedNode);\n }\n }\n }\n\n // we need to cut off all trailing parameters\n if (firstOptionalIndex !== null) {\n node.params = node.params.slice(0, firstOptionalIndex);\n }\n\n // ensure it's a block, useful for arrow functions\n path.ensureBlock();\n\n const { async, generator } = node;\n if (generator || state.needsOuterBinding || shadowedParams.size > 0) {\n body.push(buildScopeIIFE(shadowedParams, path.node.body));\n\n path.set(\"body\", t.blockStatement(body as t.Statement[]));\n\n // We inject an arrow and then transform it to a normal function, to be\n // sure that we correctly handle this and arguments.\n const bodyPath = path.get(\"body.body\");\n const arrowPath = bodyPath[bodyPath.length - 1].get(\n \"argument.callee\",\n ) as NodePath<t.ArrowFunctionExpression>;\n\n // This is an IIFE, so we don't need to worry about the noNewArrows assumption\n arrowPath.arrowFunctionToExpression();\n\n arrowPath.node.generator = generator;\n arrowPath.node.async = async;\n\n node.generator = false;\n node.async = false;\n if (async) {\n // If the default value of a parameter throws, it must reject asynchronously.\n path.node.body = template.statement.ast`{\n try {\n ${path.node.body.body}\n } catch (e) {\n return Promise.reject(e);\n }\n }` as t.BlockStatement;\n }\n } else {\n path.get(\"body\").unshiftContainer(\"body\", body);\n }\n\n return true;\n}\n"],"mappings":";;;;;;AAAA,IAAAA,KAAA,GAAAC,OAAA;AAGA,IAAAC,YAAA,GAAAD,OAAA;AAMA,MAAME,iBAAiB,GAAGC,cAAQ,CAACC,SAAS,CAAE;AAC9C;AACA;AACA;AACA;AACA;AACA,CAAC,CAAC;AAEF,MAAMC,sBAAsB,GAAGF,cAAQ,CAACC,SAAS,CAAE;AACnD;AACA;AACA;AACA,CAAC,CAAC;AAEF,MAAME,kCAAkC,GAAGH,cAAQ,CAACC,SAAS,CAAE;AAC/D;AACA,CAAC,CAAC;AAEF,MAAMG,wBAAwB,GAAGJ,cAAQ,CAACC,SAAS,CAAE;AACrD;AACA,CAAC,CAAC;AAGa,SAASI,qBAAqBA,CAC3CC,IAA0B,EAC1BC,oBAAoC,EACpCC,oBAAiD,EACjDC,kBAIS,EACT;EACA,MAAMC,MAAM,GAAGJ,IAAI,CAACK,GAAG,CAAC,QAAQ,CAAC;EAEjC,MAAMC,qBAAqB,GAAGF,MAAM,CAACG,KAAK,CAACC,KAAK,IAAIA,KAAK,CAACC,YAAY,CAAC,CAAC,CAAC;EACzE,IAAIH,qBAAqB,EAAE,OAAO,KAAK;EAEvC,MAAM;IAAEI,IAAI;IAAEC;EAAM,CAAC,GAAGX,IAAI;EAE5B,MAAMY,IAAI,GAAG,EAAE;EACf,MAAMC,cAAc,GAAG,IAAIC,GAAG,CAAS,CAAC;EAExC,KAAK,MAAMN,KAAK,IAAIJ,MAAM,EAAE;IAC1B,IAAAW,uCAA0B,EAACP,KAAK,EAAEG,KAAK,EAAEE,cAAc,CAAC;EAC1D;EAEA,MAAMG,KAAK,GAAG;IACZC,iBAAiB,EAAE,KAAK;IACxBN;EACF,CAAC;EACD,IAAIE,cAAc,CAACK,IAAI,KAAK,CAAC,EAAE;IAC7B,KAAK,MAAMV,KAAK,IAAIJ,MAAM,EAAE;MAC1B,IAAI,CAACI,KAAK,CAACC,YAAY,CAAC,CAAC,EAAED,KAAK,CAACW,QAAQ,CAACC,wBAAW,EAAEJ,KAAK,CAAC;MAC7D,IAAIA,KAAK,CAACC,iBAAiB,EAAE;IAC/B;EACF;EAEA,IAAII,kBAAkB,GAAG,IAAI;EAE7B,KAAK,IAAIC,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGlB,MAAM,CAACmB,MAAM,EAAED,CAAC,EAAE,EAAE;IACtC,MAAMd,KAAK,GAAGJ,MAAM,CAACkB,CAAC,CAAC;IAEvB,IAAIpB,oBAAoB,IAAI,CAACA,oBAAoB,CAACoB,CAAC,CAAC,EAAE;MACpD;IACF;IACA,MAAME,oBAAmC,GAAG,EAAE;IAC9C,IAAIrB,kBAAkB,EAAE;MACtBA,kBAAkB,CAACH,IAAI,EAAEQ,KAAK,EAAEgB,oBAAoB,CAAC;IACvD;IAEA,MAAMC,wBAAwB,GAAGjB,KAAK,CAACkB,mBAAmB,CAAC,CAAC;IAC5D,IACED,wBAAwB,KACvBxB,oBAAoB,IAAI0B,WAAC,CAACC,QAAQ,CAAClB,IAAI,EAAE;MAAEmB,IAAI,EAAE;IAAM,CAAC,CAAC,CAAC,EAC3D;MACA,MAAMC,IAAI,GAAGtB,KAAK,CAACH,GAAG,CAAC,MAAM,CAAC;MAC9B,MAAM0B,KAAK,GAAGvB,KAAK,CAACH,GAAG,CAAC,OAAO,CAAC;MAEhC,MAAM2B,aAAa,GAAGrB,KAAK,CAACsB,kBAAkB,CAAC,CAAC;MAEhD,IAAIH,IAAI,CAACrB,YAAY,CAAC,CAAC,EAAE;QACvBG,IAAI,CAACsB,IAAI,CACPtC,sBAAsB,CAAC;UACrBuC,qBAAqB,EAAER,WAAC,CAACS,SAAS,CAACN,IAAI,CAACpB,IAAI,CAAC;UAC7C2B,aAAa,EAAEN,KAAK,CAACrB,IAAI;UACzB4B,SAAS,EAAEN;QACb,CAAC,CACH,CAAC;QACDxB,KAAK,CAAC+B,WAAW,CAACT,IAAI,CAACpB,IAAI,CAAC;MAC9B,CAAC,MAAM,IAAIoB,IAAI,CAACU,eAAe,CAAC,CAAC,IAAIV,IAAI,CAACW,cAAc,CAAC,CAAC,EAAE;QAC1D,MAAMC,SAAS,GAAG/B,KAAK,CAACgC,qBAAqB,CAAC,CAAC;QAC/C/B,IAAI,CAACsB,IAAI,CACPrC,kCAAkC,CAAC;UACjCsC,qBAAqB,EAAEL,IAAI,CAACpB,IAAI;UAChC2B,aAAa,EAAEN,KAAK,CAACrB,IAAI;UACzBkC,cAAc,EAAEjB,WAAC,CAACS,SAAS,CAACM,SAAS,CAAC;UACtCJ,SAAS,EAAEN;QACb,CAAC,CACH,CAAC;QACDxB,KAAK,CAAC+B,WAAW,CAACG,SAAS,CAAC;MAC9B;IACF,CAAC,MAAM,IAAIjB,wBAAwB,EAAE;MACnC,IAAIJ,kBAAkB,KAAK,IAAI,EAAEA,kBAAkB,GAAGC,CAAC;MAEvD,MAAMQ,IAAI,GAAGtB,KAAK,CAACH,GAAG,CAAC,MAAM,CAAC;MAC9B,MAAM0B,KAAK,GAAGvB,KAAK,CAACH,GAAG,CAAC,OAAO,CAAC;MAEhC,MAAMwC,OAAO,GAAGpD,iBAAiB,CAAC;QAChCqD,aAAa,EAAEhB,IAAI,CAACpB,IAAI;QACxB2B,aAAa,EAAEN,KAAK,CAACrB,IAAI;QACzBqC,YAAY,EAAEpB,WAAC,CAACqB,cAAc,CAAC1B,CAAC;MAClC,CAAC,CAAC;MACFV,IAAI,CAACsB,IAAI,CAACW,OAAO,CAAC;IACpB,CAAC,MAAM,IAAIxB,kBAAkB,KAAK,IAAI,EAAE;MACtC,MAAMwB,OAAO,GAAG/C,wBAAwB,CAAC,CACvCU,KAAK,CAACE,IAAI,EACViB,WAAC,CAACqB,cAAc,CAAC1B,CAAC,CAAC,CACpB,CAAC;MACFV,IAAI,CAACsB,IAAI,CAACW,OAAO,CAAC;IACpB,CAAC,MAAM,IAAIrC,KAAK,CAACgC,eAAe,CAAC,CAAC,IAAIhC,KAAK,CAACiC,cAAc,CAAC,CAAC,EAAE;MAC5D,MAAMQ,GAAG,GAAGjD,IAAI,CAACW,KAAK,CAACgC,qBAAqB,CAAC,KAAK,CAAC;MACnDM,GAAG,CAACC,cAAc,GAAG1C,KAAK,CAACE,IAAI,CAACwC,cAAc;MAE9C,MAAML,OAAO,GAAGlB,WAAC,CAACwB,mBAAmB,CAAC,KAAK,EAAE,CAC3CxB,WAAC,CAACyB,kBAAkB,CAAC5C,KAAK,CAACE,IAAI,EAAEuC,GAAG,CAAC,CACtC,CAAC;MACFrC,IAAI,CAACsB,IAAI,CAACW,OAAO,CAAC;MAElBrC,KAAK,CAAC+B,WAAW,CAACZ,WAAC,CAACS,SAAS,CAACa,GAAG,CAAC,CAAC;IACrC;IAEA,IAAIzB,oBAAoB,EAAE;MACxB,KAAK,MAAM6B,eAAe,IAAI7B,oBAAoB,EAAE;QAClDZ,IAAI,CAACsB,IAAI,CAACmB,eAAe,CAAC;MAC5B;IACF;EACF;EAGA,IAAIhC,kBAAkB,KAAK,IAAI,EAAE;IAC/BX,IAAI,CAACN,MAAM,GAAGM,IAAI,CAACN,MAAM,CAACkD,KAAK,CAAC,CAAC,EAAEjC,kBAAkB,CAAC;EACxD;EAGArB,IAAI,CAACuD,WAAW,CAAC,CAAC;EAElB,MAAM;IAAEC,KAAK;IAAEC;EAAU,CAAC,GAAG/C,IAAI;EACjC,IAAI+C,SAAS,IAAIzC,KAAK,CAACC,iBAAiB,IAAIJ,cAAc,CAACK,IAAI,GAAG,CAAC,EAAE;IACnEN,IAAI,CAACsB,IAAI,CAAC,IAAAwB,2BAAc,EAAC7C,cAAc,EAAEb,IAAI,CAACU,IAAI,CAACE,IAAI,CAAC,CAAC;IAEzDZ,IAAI,CAAC2D,GAAG,CAAC,MAAM,EAAEhC,WAAC,CAACiC,cAAc,CAAChD,IAAqB,CAAC,CAAC;IAIzD,MAAMiD,QAAQ,GAAG7D,IAAI,CAACK,GAAG,CAAC,WAAW,CAAC;IACtC,MAAMyD,SAAS,GAAGD,QAAQ,CAACA,QAAQ,CAACtC,MAAM,GAAG,CAAC,CAAC,CAAClB,GAAG,CACjD,iBACF,CAAwC;IAGxCyD,SAAS,CAACC,yBAAyB,CAAC,CAAC;IAErCD,SAAS,CAACpD,IAAI,CAAC+C,SAAS,GAAGA,SAAS;IACpCK,SAAS,CAACpD,IAAI,CAAC8C,KAAK,GAAGA,KAAK;IAE5B9C,IAAI,CAAC+C,SAAS,GAAG,KAAK;IACtB/C,IAAI,CAAC8C,KAAK,GAAG,KAAK;IAClB,IAAIA,KAAK,EAAE;MAETxD,IAAI,CAACU,IAAI,CAACE,IAAI,GAAGlB,cAAQ,CAACC,SAAS,CAACqE,GAAI;AAC9C;AACA,YAAYhE,IAAI,CAACU,IAAI,CAACE,IAAI,CAACA,IAAK;AAChC;AACA;AACA;AACA,QAA4B;IACxB;EACF,CAAC,MAAM;IACLZ,IAAI,CAACK,GAAG,CAAC,MAAM,CAAC,CAAC4D,gBAAgB,CAAC,MAAM,EAAErD,IAAI,CAAC;EACjD;EAEA,OAAO,IAAI;AACb"} |