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: Add arm64 port. 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 93636d008f1b6639a79f885812549e415e24d164..2ee0d0738fee371fa0121f846dbc71f716181ee9 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);

}