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NoKeywordParameters

rascal-0.40.17

Synopsis​

A function that is declared without keyword parameters is called with keyword parameters.

Description​

Functions maybe declared with or without keyword parameters. This warning is generated when a function has been declared without keyword parameters but is called with a keyword parameter.

Remedies:

  • Replace the keyword parameter in the call by a positional parameter.
  • Add a keyword parameter to the function declaration.

Examples​

rascal>int incr(int x) = x + 1;
int (int): function(|prompt:///|(0,24,<1,0>,<1,24>))
rascal>incr(3, delta=5);
int: 4
info

The warning about the extra keyword parameters is not printed in this document.

Here is a possible fix to remove the warning:

rascal>int incr(int x, int delta=1) = x + delta;
int (int, int delta = ...): function(|prompt:///|(0,41,<1,0>,<1,41>))
rascal>incr(3, delta=5);
int: 8