Merge "objectcache: Use faster getArrayCopy() in WAN cache methods"

[lhc/web/wiklou.git] / resources / src / mediawiki / mediawiki.inspect.js

diff --git a/resources/src/mediawiki/mediawiki.inspect.js b/resources/src/mediawiki/mediawiki.inspect.js
index fdaa989..9332773 100644 (file)
--- a/resources/src/mediawiki/mediawiki.inspect.js
+++ b/resources/src/mediawiki/mediawiki.inspect.js
@@ -73,29 +73,57 @@
                 */
                getModuleSize: function ( moduleName ) {
                        var module = mw.loader.moduleRegistry[ moduleName ],
-                               payload = 0;
+                               args, i, size;
 
-                       if ( mw.loader.getState( moduleName ) !== 'ready' ) {
+                       if ( module.state !== 'ready' ) {
                                return null;
                        }
 
                        if ( !module.style && !module.script ) {
-                               return null;
+                               return 0;
                        }
 
-                       // Tally CSS
-                       if ( module.style && $.isArray( module.style.css ) ) {
-                               $.each( module.style.css, function ( i, stylesheet ) {
-                                       payload += $.byteLength( stylesheet );
-                               } );
+                       function getFunctionBody( func ) {
+                               return String( func )
+                                       // To ensure a deterministic result, replace the start of the function
+                                       // declaration with a fixed string. For example, in Chrome 55, it seems
+                                       // V8 seemingly-at-random decides to sometimes put a line break between
+                                       // the opening brace and first statement of the function body. T159751.
+                                       .replace( /^\s*function\s*\([^)]*\)\s*{\s*/, 'function(){' )
+                                       .replace( /\s*}\s*$/, '}' );
+                       }
+
+                       // Based on the load.php response for this module.
+                       // For example: `mw.loader.implement("example", function(){}, {"css":[".x{color:red}"]});`
+                       // @see mw.loader.store.set().
+                       args = [
+                               moduleName,
+                               module.script,
+                               module.style,
+                               module.messages,
+                               module.templates
+                       ];
+                       // Trim trailing null or empty object, as load.php would have done.
+                       // @see ResourceLoader::makeLoaderImplementScript and ResourceLoader::trimArray.
+                       i = args.length;
+                       while ( i-- ) {
+                               if ( args[ i ] === null || ( $.isPlainObject( args[ i ] ) && $.isEmptyObject( args[ i ] ) ) ) {
+                                       args.splice( i, 1 );
+                               } else {
+                                       break;
+                               }
                        }
 
-                       // Tally JavaScript
-                       if ( $.isFunction( module.script ) ) {
-                               payload += $.byteLength( module.script.toString() );
+                       size = 0;
+                       for ( i = 0; i < args.length; i++ ) {
+                               if ( typeof args[ i ] === 'function' ) {
+                                       size += $.byteLength( getFunctionBody( args[ i ] ) );
+                               } else {
+                                       size += $.byteLength( JSON.stringify( args[ i ] ) );
+                               }
                        }
 
-                       return payload;
+                       return size;
                },
 
                /**
@@ -155,6 +183,7 @@
                                // Use Function.prototype#call to force an exception on Firefox,
                                // which doesn't define console#table but doesn't complain if you
                                // try to invoke it.
+                               // eslint-disable-next-line no-useless-call
                                console.table.call( console, data );
                                return;
                        } catch ( e ) {}
@@ -287,7 +316,7 @@
 
                                // Grep module's CSS
                                if (
-                                       $.isPlainObject( module.style ) && $.isArray( module.style.css ) &&
+                                       $.isPlainObject( module.style ) && Array.isArray( module.style.css ) &&
                                        pattern.test( module.style.css.join( '' ) )
                                ) {
                                        // Module's CSS source matches