Interface ReaderCodegen

factory

• factory(inputVar: symbol, offsetVar: symbol, contextVar: symbol, resultVar: symbol): CodeBindings

• The factory that returns the code of the reader function. The produced code assigns the reader result for inputVar and offsetVar to resultVar. The produced code must be a semicolon-terminated statement.

  const abcReaderCodegenFactory: ReaderCodegenFactory = (inputVar, offsetVar, contextVar, resultVar) => {
    const abcVar = Symbol();
    return {
      code: [resultVar, '=', inputVar, '.startsWith(', abcVar, ',', offsetVar, ')?', offsetVar, '+3:-1;'],
      bindings: [[abcVar, 'abc']],
    };
  };
  

  Parameters

  • inputVar: symbol

    The variable that holds the input string.

  • offsetVar: symbol

    The variable that holds the offset in the input string from which the reader must be applied.

  • contextVar: symbol

    The variable that holds the reader context.

  • resultVar: symbol

    The variable to which the reader result must be assigned.

  Returns CodeBindings

  The source code and required variable bindings.