ReferencedIdentifier()

in scripts/babel-plugin-jest-native-globals.js [36:119]
80 lines of code
18 McCabe index (conditional complexity)

      ReferencedIdentifier(path, state) {
        if (path.node.name === 'Promise' && !state.jestInjectedPromise) {
          state.jestInjectedPromise = true;
          path
            .findParent(p => p.isProgram())
            .unshiftContainer('body', promiseDeclaration());
          path
            .findParent(p => p.isProgram())
            .unshiftContainer('body', symbolDeclaration());
        }
        if (path.node.name === 'Symbol' && !state.jestInjectedSymbol) {
          state.jestInjectedSymbol = true;
          path
            .findParent(p => p.isProgram())
            .unshiftContainer('body', symbolDeclaration());
        }
        if (
          path.node.name === 'Date' &&
          path.parent.property &&
          path.parent.property.name === 'now'
        ) {
          if (!state.jestInjectedNow) {
            state.jestInjectedNow = true;
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', nowDeclaration());
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', symbolDeclaration());
          }

          path.parentPath.replaceWithSourceString('jestNow');
        }
        if (
          path.node.name === 'fs' &&
          path.parent.property &&
          ['readFileSync', 'writeFileSync', 'existsSync'].includes(
            path.parent.property.name,
          )
        ) {
          if (
            !state.jestInjectedRead &&
            path.parent.property.name === 'readFileSync'
          ) {
            state.jestInjectedRead = true;
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', fsReadFileDeclaration());
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', symbolDeclaration());

            path.parentPath.replaceWithSourceString('jestReadFile');
          }
          if (
            !state.jestInjectedWrite &&
            path.parent.property.name === 'writeFileSync'
          ) {
            state.jestInjectedWrite = true;
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', fsWriteFileDeclaration());
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', symbolDeclaration());

            path.parentPath.replaceWithSourceString('jestWriteFile');
          }
          if (
            !state.jestInjectedExists &&
            path.parent.property.name === 'existsSync'
          ) {
            state.jestInjectedExists = true;
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', fsExistsFileDeclaration());
            path
              .findParent(p => p.isProgram())
              .unshiftContainer('body', symbolDeclaration());

            path.parentPath.replaceWithSourceString('jestExistsFile');
          }
        }
      },