public function operate($env, $op, $other)
{
$value = Less_Environment::operate($env, $op, $this->value, $other->value);
$unit = clone $this->unit;
if ($op === '+' || $op === '-') {
if (!count($unit->numerator) && !count($unit->denominator)) {
$unit->numerator = $other->unit->numerator;
$unit->denominator = $other->unit->denominator;
} elseif (!count($other->unit->numerator) && !count($other->unit->denominator)) {
// do nothing
} else {
$other = $other->convertTo($this->unit->usedUnits());
if ($env->strictUnits && $other->unit->toString() !== $unit->toCSS()) {
throw new Less_CompilerException("Incompatible units. Change the units or use the unit function. Bad units: '" . $unit->toString() . "' and " . $other->unit->toString() + "'.");
}
$value = Less_Environment::operate($env, $op, $this->value, $other->value);
}
} elseif ($op === '*') {
$unit->numerator = array_merge($unit->numerator, $other->unit->numerator);
$unit->denominator = array_merge($unit->denominator, $other->unit->denominator);
sort($unit->numerator);
sort($unit->denominator);
$unit->cancel();
} elseif ($op === '/') {
$unit->numerator = array_merge($unit->numerator, $other->unit->denominator);
$unit->denominator = array_merge($unit->denominator, $other->unit->numerator);
sort($unit->numerator);
sort($unit->denominator);
$unit->cancel();
}
return new Less_Tree_Dimension($value, $unit);
}
public function operate($env, $op, $other)
{
$result = array();
if (!$other instanceof Less_Tree_Color) {
$other = $other->toColor();
}
for ($c = 0; $c < 3; $c++) {
$result[$c] = Less_Environment::operate($env, $op, $this->rgb[$c], $other->rgb[$c]);
}
return new Less_Tree_Color($result, $this->alpha + $other->alpha);
}
