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Prefer unit strings over integer strings for [0..9] in NumberToString (514884, r=gal).

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This commit is contained in:
gwagner@mozilla.com 2009-09-05 20:24:42 -07:00
parent 6bfe4771cc
commit baca785d37
1 changed files with 7 additions and 5 deletions
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12
js/src/jsnum.cpp
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@ -598,8 +598,7 @@ num_toPrecision(JSContext *cx, uintN argc, jsval *vp)
#ifdef JS_TRACER
JS_DEFINE_TRCINFO_2(num_toString,
(3, (static, STRING, NumberToStringWithBase, CONTEXT, THIS_DOUBLE, INT32, 1, 1)),
JS_DEFINE_TRCINFO_1(num_toString,
(2, (extern, STRING, js_NumberToString, CONTEXT, THIS_DOUBLE, 1, 1)))
#endif /* JS_TRACER */
@ -833,7 +832,7 @@ NumberToCString(JSContext *cx, jsdouble d, jsint base, char *buf, size_t bufSize
return numStr;
}
static JSString * JS_FASTCALL
static JSString *
NumberToStringWithBase(JSContext *cx, jsdouble d, jsint base)
{
/*
@ -863,8 +862,11 @@ js_NumberToString(JSContext *cx, jsdouble d)
jsint i;
if (JSDOUBLE_IS_INT(d, i)) {
if (jsuint(i) < INT_STRING_LIMIT)
return &JSString::intStringTable[i];
jsuint u = jsuint(i);
if (u < 10) /* to avoid 2 JSString copies of 0-9 */
return &JSString::unitStringTable['0' + u];
if (u < INT_STRING_LIMIT)
return &JSString::intStringTable[u];
}
return NumberToStringWithBase(cx, d, 10);
}