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Unified Diff: src/heap.cc

Issue 7237023: Check for empty substring. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 6 months ago
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Index: src/heap.cc
===================================================================
--- src/heap.cc (revision 8404)
+++ src/heap.cc (working copy)
@@ -2643,8 +2643,9 @@
int end,
PretenureFlag pretenure) {
int length = end - start;
-
- if (length == 1) {
+ if (length == 0) {
+ return empty_string();
+ } else if (length == 1) {
return LookupSingleCharacterStringFromCode(buffer->Get(start));
} else if (length == 2) {
// Optimization for 2-byte strings often used as keys in a decompression
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