Update V8 to r6238 as required by WebKit r75993
Change-Id: I12f638fcdd02d9102abab17d81c23cde63c08f22
diff --git a/src/array.js b/src/array.js
index 0f1e969..56f5254 100644
--- a/src/array.js
+++ b/src/array.js
@@ -121,37 +121,49 @@
if (IS_STRING(e)) return e;
return convert(e);
}
+ return '';
}
// Construct an array for the elements.
- var elements;
+ var elements = new $Array(length);
var elements_length = 0;
// We pull the empty separator check outside the loop for speed!
if (separator.length == 0) {
- elements = new $Array(length);
for (var i = 0; i < length; i++) {
var e = array[i];
- if (!IS_UNDEFINED(e) || (i in array)) {
+ if (!IS_UNDEFINED(e)) {
if (!IS_STRING(e)) e = convert(e);
elements[elements_length++] = e;
}
}
- } else {
- elements = new $Array(length << 1);
- for (var i = 0; i < length; i++) {
- var e = array[i];
- if (i != 0) elements[elements_length++] = separator;
- if (!IS_UNDEFINED(e) || (i in array)) {
- if (!IS_STRING(e)) e = convert(e);
- elements[elements_length++] = e;
- }
+ elements.length = elements_length;
+ var result = %_FastAsciiArrayJoin(elements, '');
+ if (!IS_UNDEFINED(result)) return result;
+ return %StringBuilderConcat(elements, elements_length, '');
+ }
+ // Non-empty separator.
+ for (var i = 0; i < length; i++) {
+ var e = array[i];
+ if (!IS_UNDEFINED(e)) {
+ if (!IS_STRING(e)) e = convert(e);
+ elements[i] = e;
+ } else {
+ elements[i] = '';
}
}
- elements.length = elements_length;
- var result = %_FastAsciiArrayJoin(elements, "");
- if (!IS_UNDEFINED(result)) return result;
- return %StringBuilderConcat(elements, elements_length, '');
+ var result = %_FastAsciiArrayJoin(elements, separator);
+ if (!IS_UNDEFINED(result)) return result;
+
+ var length2 = (length << 1) - 1;
+ var j = length2;
+ var i = length;
+ elements[--j] = elements[--i];
+ while (i > 0) {
+ elements[--j] = separator;
+ elements[--j] = elements[--i];
+ }
+ return %StringBuilderConcat(elements, length2, '');
} finally {
// Make sure to pop the visited array no matter what happens.
if (is_array) visited_arrays.pop();
@@ -160,7 +172,7 @@
function ConvertToString(x) {
- if (IS_STRING(x)) return x;
+ // Assumes x is a non-string.
if (IS_NUMBER(x)) return %_NumberToString(x);
if (IS_BOOLEAN(x)) return x ? 'true' : 'false';
return (IS_NULL_OR_UNDEFINED(x)) ? '' : %ToString(%DefaultString(x));