Comments.

DanielRosenwasser · DanielRosenwasser · commit fd0ff3425317 · 2015-04-15T17:12:42.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -382,7 +382,7 @@ module ts {
                                 if (getSymbol(ctor.locals, name, meaning & SymbolFlags.Value)) {
                                     // Remember the property node, it will be used later to report appropriate error
                                     propertyWithInvalidInitializer = location;
-                                }
+                                                                   }
                             }
                         }
                         break;
@@ -504,6 +504,9 @@ module ts {
             }
 
             if (argumentsUsedInArrowFunction) {
+                // At this point we've resolved the owner of 'arguments' and know it needs to be captured.
+                // Flag the owner to indicate that it will need to capture at emit-time.
+                // If we were resolved in the global scope, use 'lastLocation' as 'location' will be undefined.
                 getNodeLinks(location || lastLocation).flags |= NodeCheckFlags.CaptureArguments;
             }
 

Original file line number	Diff line number	Diff line change
`@@ -382,7 +382,7 @@ module ts {`
`382`	`382`	`if (getSymbol(ctor.locals, name, meaning & SymbolFlags.Value)) {`
`383`	`383`	`// Remember the property node, it will be used later to report appropriate error`
`384`	`384`	`propertyWithInvalidInitializer = location;`
`385`		`- }`
	`385`	`+ }`
`386`	`386`	`}`
`387`	`387`	`}`
`388`	`388`	`break;`
`@@ -504,6 +504,9 @@ module ts {`
`504`	`504`	`}`
`505`	`505`
`506`	`506`	`if (argumentsUsedInArrowFunction) {`
	`507`	`+ // At this point we've resolved the owner of 'arguments' and know it needs to be captured.`
	`508`	`+ // Flag the owner to indicate that it will need to capture at emit-time.`
	`509`	`+ // If we were resolved in the global scope, use 'lastLocation' as 'location' will be undefined.`
`507`	`510`	`getNodeLinks(location \|\| lastLocation).flags \|= NodeCheckFlags.CaptureArguments;`
`508`	`511`	`}`
`509`	`512`