public function SassNumber::op_minus in Sassy 7.3

Same name and namespace in other branches

1. 7 phamlp/sass/script/literals/SassNumber.php \SassNumber::op_minus()

Subtracts the value of other from this value

Parameters

mixed SassNumber|SassColour: value to subtract:

Return value

mixed SassNumber if other is a SassNumber or SassColour if it is a SassColour

Overrides SassLiteral::op_minus

File

phpsass/script/literals/SassNumber.php, line 131

Class

SassNumber

SassNumber class. Provides operations and type testing for Sass numbers. Units are of the passed value are converted the those of the class value if it has units. e.g. 2cm + 20mm = 4cm while 2 + 20mm = 22mm. @package PHamlP @subpackage …

Code

public function op_minus($other) {
  if ($other instanceof SassColour) {
    return $other
      ->op_minus($this);
  }
  elseif (!$other instanceof SassNumber) {
    throw new SassNumberException('Number must be a number', SassScriptParser::$context->node);
  }
  else {
    $other = $this
      ->convert($other);
    return new SassNumber($this->value - $other->value . $this->units);
  }
}