node_modules/@babel/helper-module-imports/lib/import-builder.js.map

{"version":3,"names":["_assert","require","_t","callExpression","cloneNode","expressionStatement","identifier","importDeclaration","importDefaultSpecifier","importNamespaceSpecifier","importSpecifier","memberExpression","stringLiteral","variableDeclaration","variableDeclarator","ImportBuilder","constructor","importedSource","scope","hub","_statements","_resultName","_importedSource","_scope","_hub","done","statements","resultName","import","push","namespace","name","local","generateUidIdentifier","statement","length","assert","type","specifiers","default","id","named","importName","var","expression","defaultInterop","_interop","addHelper","wildcardInterop","callee","declarations","init","fail","prop","read","exports"],"sources":["../src/import-builder.ts"],"sourcesContent":["import assert from \"assert\";\nimport {\n  callExpression,\n  cloneNode,\n  expressionStatement,\n  identifier,\n  importDeclaration,\n  importDefaultSpecifier,\n  importNamespaceSpecifier,\n  importSpecifier,\n  memberExpression,\n  stringLiteral,\n  variableDeclaration,\n  variableDeclarator,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type { Scope } from \"@babel/traverse\";\nimport type { File } from \"@babel/core\";\n\n/**\n * A class to track and accumulate mutations to the AST that will eventually\n * output a new require/import statement list.\n */\nexport default class ImportBuilder {\n  private _statements: t.Statement[] = [];\n  private _resultName: t.Identifier | t.MemberExpression = null;\n\n  declare _scope: Scope;\n  declare _hub: File[\"hub\"];\n  private _importedSource: string;\n\n  constructor(importedSource: string, scope: Scope, hub: File[\"hub\"]) {\n    this._scope = scope;\n    this._hub = hub;\n    this._importedSource = importedSource;\n  }\n\n  done() {\n    return {\n      statements: this._statements,\n      resultName: this._resultName,\n    };\n  }\n\n  import() {\n    this._statements.push(\n      importDeclaration([], stringLiteral(this._importedSource)),\n    );\n    return this;\n  }\n\n  require() {\n    this._statements.push(\n      expressionStatement(\n        callExpression(identifier(\"require\"), [\n          stringLiteral(this._importedSource),\n        ]),\n      ),\n    );\n    return this;\n  }\n\n  namespace(name = \"namespace\") {\n    const local = this._scope.generateUidIdentifier(name);\n\n    const statement = this._statements[this._statements.length - 1];\n    assert(statement.type === \"ImportDeclaration\");\n    assert(statement.specifiers.length === 0);\n    statement.specifiers = [importNamespaceSpecifier(local)];\n    this._resultName = cloneNode(local);\n    return this;\n  }\n  default(name: string) {\n    const id = this._scope.generateUidIdentifier(name);\n    const statement = this._statements[this._statements.length - 1];\n    assert(statement.type === \"ImportDeclaration\");\n    assert(statement.specifiers.length === 0);\n    statement.specifiers = [importDefaultSpecifier(id)];\n    this._resultName = cloneNode(id);\n    return this;\n  }\n  named(name: string, importName: string) {\n    if (importName === \"default\") return this.default(name);\n\n    const id = this._scope.generateUidIdentifier(name);\n    const statement = this._statements[this._statements.length - 1];\n    assert(statement.type === \"ImportDeclaration\");\n    assert(statement.specifiers.length === 0);\n    statement.specifiers = [importSpecifier(id, identifier(importName))];\n    this._resultName = cloneNode(id);\n    return this;\n  }\n\n  var(name: string) {\n    const id = this._scope.generateUidIdentifier(name);\n    let statement = this._statements[this._statements.length - 1];\n    if (statement.type !== \"ExpressionStatement\") {\n      assert(this._resultName);\n      statement = expressionStatement(this._resultName);\n      this._statements.push(statement);\n    }\n    this._statements[this._statements.length - 1] = variableDeclaration(\"var\", [\n      variableDeclarator(id, statement.expression),\n    ]);\n    this._resultName = cloneNode(id);\n    return this;\n  }\n\n  defaultInterop() {\n    return this._interop(this._hub.addHelper(\"interopRequireDefault\"));\n  }\n  wildcardInterop() {\n    return this._interop(this._hub.addHelper(\"interopRequireWildcard\"));\n  }\n\n  _interop(callee: t.Expression) {\n    const statement = this._statements[this._statements.length - 1];\n    if (statement.type === \"ExpressionStatement\") {\n      statement.expression = callExpression(callee, [statement.expression]);\n    } else if (statement.type === \"VariableDeclaration\") {\n      assert(statement.declarations.length === 1);\n      statement.declarations[0].init = callExpression(callee, [\n        statement.declarations[0].init,\n      ]);\n    } else {\n      assert.fail(\"Unexpected type.\");\n    }\n    return this;\n  }\n\n  prop(name: string) {\n    const statement = this._statements[this._statements.length - 1];\n    if (statement.type === \"ExpressionStatement\") {\n      statement.expression = memberExpression(\n        statement.expression,\n        identifier(name),\n      );\n    } else if (statement.type === \"VariableDeclaration\") {\n      assert(statement.declarations.length === 1);\n      statement.declarations[0].init = memberExpression(\n        statement.declarations[0].init,\n        identifier(name),\n      );\n    } else {\n      assert.fail(\"Unexpected type:\" + statement.type);\n    }\n    return this;\n  }\n\n  read(name: string) {\n    this._resultName = memberExpression(this._resultName, identifier(name));\n  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