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  1. Qt
  2. QTBUG-71812

ES7: Template literals, nested strings are not working

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    • 64ee4968b46019b8e4cb7523a6e41833fc4cf665 (qt/qtdeclarative/5.12.0)

    Description

      Ecmascript template literals are not working correctly if there are nested strings inside.

      For example 

      `This is Text \nand this is newline`

      works just fine, but 

          let a = 123;
    let b = `x ${a} \ny`;
    print(b);

      gives an error "Expected token `(template tail)'"

      However, this same javascript code seems to evaluate correctly with QJSEngine

          QJSEngine jsEngine;
    QJSValue value = jsEngine.evaluate("let a = 123; let b = `x${a}\ny`; b;");

    qDebug() << value.toString(); // prints "x123\ny"

      Please find the attached example project which demonstrates this issue

      Attachments

        1. template_literal.zip
          19 kB
          Pekka Karjalainen

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTCREATORBUG-21869 Syntax highlight for backtick and template literals not supported

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTCREATORBUG-22474 Incorrect syntax warning in JavaScript template literal

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-71812
          # Subject Branch Project Status CR V
          245947,3 QML Lexer: Stop scanning template literals on closing '`' 5.12.0 qt/qtdeclarative Status: MERGED +2 0

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            People

              ulherman Ulf Hermann
              pekarjal Pekka Karjalainen
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              Dates

                Created:
                Updated:
                Resolved:

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