Trigger a PHP notice when no callback function is associated to a given handle

ykadosh · ykadosh · commit 7d79a2baf0bd · 2016-08-04T14:05:00.000-05:00
diff --git a/compiler.php b/compiler.php
@@ -141,6 +141,12 @@ protected function get_compiled_styles( $printed )
         $compiled_css = '';
         foreach( $this->stylesheets as $style ) 
         {
+            if( !array_key_exists( $style['handle'], $this->callbacks ) )
+            {
+                trigger_error( 'There is no callback function associated with the handle "'.$style['handle'].'". Use <b>wp_dynamic_css_set_callback()</b> to register a callback function for this handle.' );
+                continue;
+            }
+            
             if( $style['print'] === $printed )
             {
                 $compiled_css .= $this->get_compiled_style( $style )."\n";

Original file line number	Diff line number	Diff line change
`@@ -141,6 +141,12 @@ protected function get_compiled_styles( $printed )`
`141`	`141`	`$compiled_css = '';`
`142`	`142`	`foreach( $this->stylesheets as $style )`
`143`	`143`	`{`
	`144`	`+ if( !array_key_exists( $style['handle'], $this->callbacks ) )`
	`145`	`+ {`
	`146`	`+ trigger_error( 'There is no callback function associated with the handle "'.$style['handle'].'". Use <b>wp_dynamic_css_set_callback()</b> to register a callback function for this handle.' );`
	`147`	`+ continue;`
	`148`	`+ }`
	`149`	`+`
`144`	`150`	`if( $style['print'] === $printed )`
`145`	`151`	`{`
`146`	`152`	`$compiled_css .= $this->get_compiled_style( $style )."\n";`