Code Coverage for /src/lib/Less/Tree/Attribute.php

1	<?php
2	declare( strict_types = 1 );
3
4	/**
5	* @private
6	* @see less-2.5.3.js#Attribute.prototype
7	*/
8	class Less_Tree_Attribute extends Less_Tree implements Less_Tree_HasValueProperty {
9	/** @var string\|Less_Tree */
10	public $key;
11	/** @var null\|string */
12	public $op;
13	/** @var null\|string\|Less_Tree */
14	public $value;
15
16	/**
17	* @param string\|Less_Tree $key
18	* @param null\|string $op
19	* @param null\|string\|Less_Tree $value
20	*/
21	public function __construct( $key, $op, $value ) {
22	$this->key = $key;
23	$this->op = $op;
24	$this->value = $value;
25	}
26
27	public function compile( $env ) {
28	// Optimization: Avoid object churn for the common case.
29	// Attributes are very common in CSS/LESS input, but rarely involve dynamic values.
30	if ( !$this->key instanceof Less_Tree && !$this->value instanceof Less_Tree ) {
31	return $this;
32	}
33
34	return new self(
35	$this->key instanceof Less_Tree ? $this->key->compile( $env ) : $this->key,
36	$this->op,
37	$this->value instanceof Less_Tree ? $this->value->compile( $env ) : $this->value );
38	}
39
40	public function genCSS( $output ) {
41	$output->add( $this->toCSS() );
42	}
43
44	public function toCSS() {
45	$value = $this->key;
46
47	if ( $this->op ) {
48	$value .= $this->op;
49	$value .= ( $this->value instanceof Less_Tree ? $this->value->toCSS() : $this->value );
50	}
51
52	return '[' . $value . ']';
53	}
54	}