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Bug 936143 - Part 2: Simplify and fix js_GetScriptLineExtent. (r=shu)

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This commit is contained in:
Jim Blandy 2013-11-12 10:51:10 -08:00
parent da43c458f6
commit 882ca67e7a
1 changed files with 8 additions and 18 deletions
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26
js/src/jsscript.cpp
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@ -2250,29 +2250,19 @@ JS_FRIEND_API(unsigned)
js_GetScriptLineExtent(JSScript *script)
{
unsigned lineno = script->lineno;
unsigned maxLineNo = 0;
bool counting = true;
unsigned maxLineNo = lineno;
for (jssrcnote *sn = script->notes(); !SN_IS_TERMINATOR(sn); sn = SN_NEXT(sn)) {
SrcNoteType type = (SrcNoteType) SN_TYPE(sn);
if (type == SRC_SETLINE) {
if (maxLineNo < lineno)
maxLineNo = lineno;
if (type == SRC_SETLINE)
lineno = (unsigned) js_GetSrcNoteOffset(sn, 0);
counting = true;
if (maxLineNo < lineno)
maxLineNo = lineno;
else
counting = false;
} else if (type == SRC_NEWLINE) {
if (counting)
lineno++;
}
else if (type == SRC_NEWLINE)
lineno++;
if (maxLineNo < lineno)
maxLineNo = lineno;
}
if (maxLineNo > lineno)
lineno = maxLineNo;
return 1 + lineno - script->lineno;
return 1 + maxLineNo - script->lineno;
}
void