Function arguments with default values

[xXziroXx]

You know what would be *really* awesome? If you could define a default value to function arguments, Python style.

PHP Code:

function argumentTest(temp.foobar, temp.barfoo=true) 


In the above example, temp.barfoo would be set to true if a value isn't defined in the function caller.

Can haz plz?

[salesman]

Graal just treats undefined variables as null, so why not just do something like this?

PHP Code:

function argumentTest(temp.foobar, temp.barfoo) {
  temp.barfoo = temp.barfoo == null ? true : temp.barfoo;
  // ...
} 


[xXziroXx]

Originally Posted by salesman

Graal just treats undefined variables as null, so why not just do something like this?

PHP Code:

function argumentTest(temp.foobar, temp.barfoo) {
  temp.barfoo = temp.barfoo == null ? true : temp.barfoo;
  // ...
} 


Because of convenience mainly, just like most of the other suggestions posted here.

[Tolnaftate2004]

Better yet, || and && shouldn't return boolean, but rather the last-evaluated operand:

PHP Code:

function foo(bar,baz) {
  bar = bar || true;
  baz = baz || "Hey, how're you doin'? ;)";
} 


e: You saw nothing.
e2: Actually, if || and && are using the same optimization as here, that would have to change for this to make any sense.

But perhaps we could just have ||= and &&=

PHP Code:

function foo(bar,baz) {
  bar ||= true;
  baz ||= "Hey, how're you doin'? ;)";
}