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early exit if string becomes too big

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Erik Krogh Kristensen
2021-11-03 13:28:03 +01:00
parent 1ba6f448cd
commit 737c747dbb
1 changed files with 10 additions and 6 deletions
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16
javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java
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@@ -606,13 +606,17 @@ public class ASTExtractor {
if (be.getOperator().equals("+")) {
Pair<String, OffsetTranslation> left = getStringConcatResult(be.getLeft());
Pair<String, OffsetTranslation> right = getStringConcatResult(be.getRight());
if (left != null && right != null) {
String str = left.fst() + right.fst();
int delta = be.getRight().getLoc().getStart().getOffset() - be.getLeft().getLoc().getStart().getOffset();
int offset = left.fst().length();
return Pair.make(str, left.snd().append(right.snd(), offset, delta));
if (left == null || right == null) {
return null;
}
String str = left.fst() + right.fst();
if (str.length() > 1000) {
return null;
}
int delta = be.getRight().getLoc().getStart().getOffset() - be.getLeft().getLoc().getStart().getOffset();
int offset = left.fst().length();
return Pair.make(str, left.snd().append(right.snd(), offset, delta));
}
} else if (exp instanceof Literal) {
Literal lit = (Literal) exp;