--- /dev/null
+<?php
+
+class Less_Tree_Mixin_Definition extends Less_Tree_Ruleset{
+ public $name;
+ public $selectors;
+ public $params;
+ public $arity = 0;
+ public $rules;
+ public $lookups = array();
+ public $required = 0;
+ public $frames = array();
+ public $condition;
+ public $variadic;
+ public $type = 'MixinDefinition';
+
+
+ // less.js : /lib/less/tree/mixin.js : tree.mixin.Definition
+ public function __construct($name, $params, $rules, $condition, $variadic = false, $frames = array() ){
+ $this->name = $name;
+ $this->selectors = array(new Less_Tree_Selector(array( new Less_Tree_Element(null, $name))));
+
+ $this->params = $params;
+ $this->condition = $condition;
+ $this->variadic = $variadic;
+ $this->rules = $rules;
+
+ if( $params ){
+ $this->arity = count($params);
+ foreach( $params as $p ){
+ if (! isset($p['name']) || ($p['name'] && !isset($p['value']))) {
+ $this->required++;
+ }
+ }
+ }
+
+ $this->frames = $frames;
+ $this->SetRulesetIndex();
+ }
+
+
+
+ //function accept( $visitor ){
+ // $this->params = $visitor->visit($this->params);
+ // $this->rules = $visitor->visit($this->rules);
+ // $this->condition = $visitor->visit($this->condition);
+ //}
+
+
+ public function toCSS(){
+ return '';
+ }
+
+ // less.js : /lib/less/tree/mixin.js : tree.mixin.Definition.evalParams
+ public function compileParams($env, $mixinFrames, $args = array() , &$evaldArguments = array() ){
+ $frame = new Less_Tree_Ruleset(null, array());
+ $params = $this->params;
+ $mixinEnv = null;
+ $argsLength = 0;
+
+ if( $args ){
+ $argsLength = count($args);
+ for($i = 0; $i < $argsLength; $i++ ){
+ $arg = $args[$i];
+
+ if( $arg && $arg['name'] ){
+ $isNamedFound = false;
+
+ foreach($params as $j => $param){
+ if( !isset($evaldArguments[$j]) && $arg['name'] === $params[$j]['name']) {
+ $evaldArguments[$j] = $arg['value']->compile($env);
+ array_unshift($frame->rules, new Less_Tree_Rule( $arg['name'], $arg['value']->compile($env) ) );
+ $isNamedFound = true;
+ break;
+ }
+ }
+ if ($isNamedFound) {
+ array_splice($args, $i, 1);
+ $i--;
+ $argsLength--;
+ continue;
+ } else {
+ throw new Less_Exception_Compiler("Named argument for " . $this->name .' '.$args[$i]['name'] . ' not found');
+ }
+ }
+ }
+ }
+
+ $argIndex = 0;
+ foreach($params as $i => $param){
+
+ if ( isset($evaldArguments[$i]) ){ continue; }
+
+ $arg = null;
+ if( isset($args[$argIndex]) ){
+ $arg = $args[$argIndex];
+ }
+
+ if (isset($param['name']) && $param['name']) {
+
+ if( isset($param['variadic']) ){
+ $varargs = array();
+ for ($j = $argIndex; $j < $argsLength; $j++) {
+ $varargs[] = $args[$j]['value']->compile($env);
+ }
+ $expression = new Less_Tree_Expression($varargs);
+ array_unshift($frame->rules, new Less_Tree_Rule($param['name'], $expression->compile($env)));
+ }else{
+ $val = ($arg && $arg['value']) ? $arg['value'] : false;
+
+ if ($val) {
+ $val = $val->compile($env);
+ } else if ( isset($param['value']) ) {
+
+ if( !$mixinEnv ){
+ $mixinEnv = new Less_Environment();
+ $mixinEnv->frames = array_merge( array($frame), $mixinFrames);
+ }
+
+ $val = $param['value']->compile($mixinEnv);
+ $frame->resetCache();
+ } else {
+ throw new Less_Exception_Compiler("Wrong number of arguments for " . $this->name . " (" . $argsLength . ' for ' . $this->arity . ")");
+ }
+
+ array_unshift($frame->rules, new Less_Tree_Rule($param['name'], $val));
+ $evaldArguments[$i] = $val;
+ }
+ }
+
+ if ( isset($param['variadic']) && $args) {
+ for ($j = $argIndex; $j < $argsLength; $j++) {
+ $evaldArguments[$j] = $args[$j]['value']->compile($env);
+ }
+ }
+ $argIndex++;
+ }
+
+ ksort($evaldArguments);
+ $evaldArguments = array_values($evaldArguments);
+
+ return $frame;
+ }
+
+ public function compile($env) {
+ if( $this->frames ){
+ return new Less_Tree_Mixin_Definition($this->name, $this->params, $this->rules, $this->condition, $this->variadic, $this->frames );
+ }
+ return new Less_Tree_Mixin_Definition($this->name, $this->params, $this->rules, $this->condition, $this->variadic, $env->frames );
+ }
+
+ public function evalCall($env, $args = NULL, $important = NULL) {
+
+ Less_Environment::$mixin_stack++;
+
+ $_arguments = array();
+
+ if( $this->frames ){
+ $mixinFrames = array_merge($this->frames, $env->frames);
+ }else{
+ $mixinFrames = $env->frames;
+ }
+
+ $frame = $this->compileParams($env, $mixinFrames, $args, $_arguments);
+
+ $ex = new Less_Tree_Expression($_arguments);
+ array_unshift($frame->rules, new Less_Tree_Rule('@arguments', $ex->compile($env)));
+
+
+ $ruleset = new Less_Tree_Ruleset(null, $this->rules);
+ $ruleset->originalRuleset = $this->ruleset_id;
+
+
+ $ruleSetEnv = new Less_Environment();
+ $ruleSetEnv->frames = array_merge( array($this, $frame), $mixinFrames );
+ $ruleset = $ruleset->compile( $ruleSetEnv );
+
+ if( $important ){
+ $ruleset = $ruleset->makeImportant();
+ }
+
+ Less_Environment::$mixin_stack--;
+
+ return $ruleset;
+ }
+
+
+ public function matchCondition($args, $env) {
+
+ if( !$this->condition ){
+ return true;
+ }
+
+ // set array to prevent error on array_merge
+ if(!is_array($this->frames)) {
+ $this->frames = array();
+ }
+
+ $frame = $this->compileParams($env, array_merge($this->frames,$env->frames), $args );
+
+ $compile_env = new Less_Environment();
+ $compile_env->frames = array_merge(
+ array($frame) // the parameter variables
+ , $this->frames // the parent namespace/mixin frames
+ , $env->frames // the current environment frames
+ );
+
+ $compile_env->functions = $env->functions;
+
+ return (bool)$this->condition->compile($compile_env);
+ }
+
+ public function matchArgs($args, $env = NULL){
+ $argsLength = count($args);
+
+ if( !$this->variadic ){
+ if( $argsLength < $this->required ){
+ return false;
+ }
+ if( $argsLength > count($this->params) ){
+ return false;
+ }
+ }else{
+ if( $argsLength < ($this->required - 1)){
+ return false;
+ }
+ }
+
+ $len = min($argsLength, $this->arity);
+
+ for( $i = 0; $i < $len; $i++ ){
+ if( !isset($this->params[$i]['name']) && !isset($this->params[$i]['variadic']) ){
+ if( $args[$i]['value']->compile($env)->toCSS() != $this->params[$i]['value']->compile($env)->toCSS() ){
+ return false;
+ }
+ }
+ }
+
+ return true;
+ }
+
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff