On 2015/03/26 14:08:46, caitp wrote:
https://codereview.chromium.org/1027283004/diff/370001/src/factory.cc
File src/factory.cc (right):
https://codereview.chromium.org/1027283004/diff/370001/src/factory.cc#newcode1284
src/factory.cc:1284: // In strict mode, readonly strict map is only
available
during bootstrap
On 2015/03/26 13:59:14, arv wrote:
> I still find this confusing :-)
>
> strict map with readonly prototype is what we use for classes for
example.
That seems to happen in Runtime_DefineClass --- the
constructor's "prototype"
property is explicitly set to [[Enumerable]]=false, [[Writable]]=false,
[[Configurable]]=false --- In strong mode this is probably not necessary
(strong
mode has its own constructor map variant), but in strict mode it just
uses the
strict function map, which for most of the life of the engine will have a
writable prototype
That is a good point. The current class definition code does not create the
function with a readonly prototype but sets the prototype and then make that
readonly.
https://codereview.chromium.org/1027283004/
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