Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID

src/factory.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/globals.h"
 #include "src/isolate.h"
 #include "src/messages.h"
@@ skipping 27 matching lines @@
   // NewFixedArray as a fallback.
   MUST_USE_RESULT
   MaybeHandle<FixedArray> TryNewFixedArray(
       int size, PretenureFlag pretenure = NOT_TENURED);
 
   // Allocate a new fixed array with non-existing entries (the hole).
   Handle<FixedArray> NewFixedArrayWithHoles(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
+  // Allocate a new fixed array with Smi entries.
+  Handle<FixedArray> NewFixedArrayWithSmis(

[Toon Verwaest, 2016/12/06 21:10:14]

This doesn't seem like a very generic function; do we really even need to have
an array with smis rather than just undefined? Checking for undefined is fast...

[jochen (gone - plz use gerrit), 2016/12/07 15:57:00]

done

+      int size, int value, PretenureFlag pretenure = NOT_TENURED);
+
   // Allocates an uninitialized fixed array. It must be filled by the caller.
   Handle<FixedArray> NewUninitializedFixedArray(int size);
 
   // Allocate a new uninitialized fixed double array.
   // The function returns a pre-allocated empty fixed array for capacity = 0,
   // so the return type must be the general fixed array class.
   Handle<FixedArrayBase> NewFixedDoubleArray(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
@@ skipping 744 matching lines @@
                                      FunctionMode function_mode);
 
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_