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Fix stack-overflow in Binary_Expression #3058

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Feb 12, 2020
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Fix stack-overflow in Binary_Expression #3058

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7 changes: 7 additions & 0 deletions src/parser.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2849,6 +2849,13 @@ namespace Sass {
}
}

if (operands.size() > Constants::MaxCallStack) {
// XXX: this is never hit via spec tests
sass::ostream stm;
stm << "Stack depth exceeded max of " << Constants::MaxCallStack;
error(stm.str());
}

for (size_t S = operands.size(); i < S; ++i) {
if (String_Schema* schema = Cast<String_Schema>(operands[i])) {
if (schema->has_interpolants()) {
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