2 * Copyright (C) 2015 Andy VanWagoner <thetalecrafter@gmail.com>.
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26 // @conditional=ENABLE(INTL)
28 function localeCompare(that/*, locales, options */)
32 // 13.1.1 String.prototype.localeCompare (that [, locales [, options ]]) (ECMA-402 2.0)
33 // http://ecma-international.org/publications/standards/Ecma-402.htm
35 // 1. Let O be RequireObjectCoercible(this value).
37 throw new @TypeError("String.prototype.localeCompare requires that |this| not be null");
39 if (this === undefined)
40 throw new @TypeError("String.prototype.localeCompare requires that |this| not be undefined");
42 // 2. Let S be ToString(O).
43 // 3. ReturnIfAbrupt(S).
44 var thisString = @toString(this);
46 // 4. Let That be ToString(that).
47 // 5. ReturnIfAbrupt(That).
48 var thatString = @toString(that);
50 // 6. Let collator be Construct(%Collator%, «locales, options»).
51 // 7. ReturnIfAbrupt(collator).
52 var collator = new @Collator(arguments[1], arguments[2]);
54 // 8. Return CompareStrings(collator, S, That).
55 return collator.compare(thisString, thatString);