src/v8natives.js - Issue 1304633002: Correctify instanceof and make it optimizable.

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Unified Diff: src/v8natives.js

Issue 1304633002: Correctify instanceof and make it optimizable. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: REBASE. Add MIPS/MIPS64 ports. Created 5 years, 4 months ago

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Index: src/v8natives.js

diff --git a/src/v8natives.js b/src/v8natives.js

index b051a044b4c532f835a2bdd16ee96c04d4236eab..778607633382183a66cf2661303e3399513b04f0 100644

--- a/src/v8natives.js

+++ b/src/v8natives.js

@@ -193,8 +193,8 @@ function ObjectHasOwnProperty(value) {

// ECMA-262 - 15.2.4.6

function ObjectIsPrototypeOf(V) {

if (!IS_SPEC_OBJECT(V)) return false;

- CHECK_OBJECT_COERCIBLE(this, "Object.prototype.isPrototypeOf");

- return %IsInPrototypeChain(this, V);

+ var O = TO_OBJECT(this);

+ return %_HasInPrototypeChain(V, O);

}

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