src/v8natives.js - Issue 1608003: JS implementation of isFinite.

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Unified Diff: src/v8natives.js

Issue 1608003: JS implementation of isFinite. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/

Patch Set: Created 10 years, 9 months ago

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Index: src/v8natives.js

===================================================================

--- src/v8natives.js (revision 4336)

+++ src/v8natives.js (working copy)

@@ -82,7 +82,10 @@

// ECMA 262 - 15.1.5

function GlobalIsFinite(number) {

- return %NumberIsFinite(ToNumber(number));

+ if (!IS_NUMBER(number)) number = ToNumber(number);

+ // NaN - NaN == NaN, Infinity - Infinity == NaN, -Infinity - -Infinity == NaN.

+ return %_IsSmi(number) || number - number == 0;

}

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