hexo/node_modules/@babel/helper-create-class-features-plugin/lib/misc.js.map

{"version":3,"names":["_core","require","_helperEnvironmentVisitor","findBareSupers","traverse","visitors","merge","Super","path","node","parentPath","isCallExpression","callee","push","environmentVisitor","referenceVisitor","TSTypeAnnotation|TypeAnnotation","skip","ReferencedIdentifier","scope","hasOwnBinding","name","rename","handleClassTDZ","state","classBinding","getBinding","classNameTDZError","file","addHelper","throwNode","t","callExpression","stringLiteral","replaceWith","sequenceExpression","classFieldDefinitionEvaluationTDZVisitor","injectInitialization","constructor","nodes","renamer","length","isDerived","superClass","newConstructor","classMethod","identifier","blockStatement","params","restElement","body","template","statement","ast","get","unshiftContainer","bareSupers","isFirst","bareSuper","insertAfter","map","n","cloneNode","extractComputedKeys","computedPaths","declarations","id","computedPath","computedKey","isReferencedIdentifier","computedNode","isConstantExpression","ident","generateUidIdentifierBasedOnNode","key","kind","expressionStatement","assignmentExpression"],"sources":["../src/misc.ts"],"sourcesContent":["import 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File;\n};\n\nfunction handleClassTDZ(\n  path: NodePath<t.Identifier>,\n  state: HandleClassTDZState,\n) {\n  if (\n    state.classBinding &&\n    state.classBinding === path.scope.getBinding(path.node.name)\n  ) {\n    const classNameTDZError = state.file.addHelper(\"classNameTDZError\");\n    const throwNode = t.callExpression(classNameTDZError, [\n      t.stringLiteral(path.node.name),\n    ]);\n\n    path.replaceWith(t.sequenceExpression([throwNode, path.node]));\n    path.skip();\n  }\n}\n\nconst classFieldDefinitionEvaluationTDZVisitor: Visitor<HandleClassTDZState> = {\n  ReferencedIdentifier: handleClassTDZ,\n};\n\ninterface RenamerState {\n  scope: Scope;\n}\n\nexport function injectInitialization(\n  path: NodePath<t.Class>,\n  constructor: NodePath<t.ClassMethod> | undefined,\n  nodes: t.Statement[],\n  renamer?: (visitor: Visitor<RenamerState>, state: RenamerState) => void,\n) {\n  if (!nodes.length) return;\n\n  const isDerived = !!path.node.superClass;\n\n  if (!constructor) {\n    const newConstructor = t.classMethod(\n      \"constructor\",\n      t.identifier(\"constructor\"),\n      [],\n      t.blockStatement([]),\n    );\n\n    if (isDerived) {\n      newConstructor.params = [t.restElement(t.identifier(\"args\"))];\n      newConstructor.body.body.push(template.statement.ast`super(...args)`);\n    }\n\n    [constructor] = path\n      .get(\"body\")\n      .unshiftContainer(\"body\", newConstructor) as NodePath<t.ClassMethod>[];\n  }\n\n  if (renamer) {\n    renamer(referenceVisitor, { scope: constructor.scope });\n  }\n\n  if (isDerived) {\n    const bareSupers: NodePath<t.CallExpression>[] = [];\n    constructor.traverse(findBareSupers, bareSupers);\n    let isFirst = true;\n    for (const bareSuper of bareSupers) {\n      if (isFirst) {\n        bareSuper.insertAfter(nodes);\n        isFirst = false;\n      } else {\n        bareSuper.insertAfter(nodes.map(n => t.cloneNode(n)));\n      }\n    }\n  } else {\n    constructor.get(\"body\").unshiftContainer(\"body\", nodes);\n  }\n}\n\nexport function extractComputedKeys(\n  path: NodePath<t.Class>,\n  computedPaths: NodePath<t.ClassProperty | t.ClassMethod>[],\n  file: File,\n) {\n  const declarations: t.ExpressionStatement[] = [];\n  const state = {\n    classBinding: path.node.id && path.scope.getBinding(path.node.id.name),\n    file,\n  };\n  for (const computedPath of computedPaths) {\n    const computedKey = computedPath.get(\"key\");\n    if (computedKey.isReferencedIdentifier()) {\n      handleClassTDZ(computedKey, state);\n    } else {\n      computedKey.traverse(classFieldDefinitionEvaluationTDZVisitor, state);\n    }\n\n    const computedNode = computedPath.node;\n    // Make sure computed property names are only evaluated once (upon class definition)\n    // and in the right order in combination with static properties\n    if (!computedKey.isConstantExpression()) {\n      const ident = path.scope.generateUidIdentifierBasedOnNode(\n        computedNode.key,\n      );\n      // Declaring in the same block scope\n      // Ref: https://github.com/babel/babel/pull/10029/files#diff-fbbdd83e7a9c998721c1484529c2ce92\n      path.scope.push({\n        id: ident,\n        kind: \"let\",\n      });\n      declarations.push(\n        t.expressionStatement(\n          t.assignmentExpression(\"=\", t.cloneNode(ident), computedNode.key),\n        ),\n      );\n      computedNode.key = t.cloneNode(ident);\n    }\n  }\n\n  return 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