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1. When 'writable' property of array length turned into 'false', convert it into NonFastMode

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2. If RegExp's source needs escapeSlash process, it should count the number of leading backSlashs

Signed-off-by: Saebom Kim sae-bom.kim@samsung.com
This commit is contained in:
Saebom Kim 2017-04-04 17:47:20 +09:00
commit 6d4ed41488
5 changed files with 107 additions and 410 deletions
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32
src/runtime/RegExpObject.cpp
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@ -80,15 +80,31 @@ static String* escapeSlashInPattern(String* patternStr)
StringBuilder builder;
while (true) {
for (i = 0; start + i < len; i++) {
if (UNLIKELY(patternStr->charAt(start + i) == '/' && (i == 0 || patternStr->charAt(start + i - 1) != '\\'))) {
slashFlag = true;
builder.appendSubString(patternStr, start, start + i);
builder.appendChar('\\');
builder.appendChar('/');
if (UNLIKELY(patternStr->charAt(start + i) == '/')) {
size_t backSlashCount = 0;
size_t s = start + i - 1;
while (true) {
if (patternStr->charAt(s) == '\\') {
backSlashCount++;
if (s == 0) {
break;
}
s--;
} else {
break;
}
}
if (backSlashCount % 2 == 0) {
slashFlag = true;
builder.appendSubString(patternStr, start, start + i);
builder.appendChar('\\');
builder.appendChar('/');
start = start + i + 1;
i = 0;
break;
start = start + i + 1;
i = 0;
backSlashCount = 0;
break;
}
}
}
if (start + i >= len) {