Add -fbracket-depth=N, analogous to -ftemplate-depth= and -fconstexpr-depth=,
to control the check for the C 5.2.4.1 / C++ [implimits] restriction on nesting
levels for parentheses, brackets and braces.
Some code with heavy macro use exceeds the default limit of 256, but we don't
want to increase it generally to avoid stack overflow on stack-constrained
systems.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175855 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 2d8d5b1..d977275 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -1878,7 +1878,9 @@
}
bool BalancedDelimiterTracker::diagnoseOverflow() {
- P.Diag(P.Tok, diag::err_parser_impl_limit_overflow);
+ P.Diag(P.Tok, diag::err_bracket_depth_exceeded)
+ << P.getLangOpts().BracketDepth;
+ P.Diag(P.Tok, diag::note_bracket_depth);
P.SkipUntil(tok::eof);
return true;
}
diff --git a/lib/Parse/RAIIObjectsForParser.h b/lib/Parse/RAIIObjectsForParser.h
index 060fd20..213950a 100644
--- a/lib/Parse/RAIIObjectsForParser.h
+++ b/lib/Parse/RAIIObjectsForParser.h
@@ -407,7 +407,7 @@
if (!P.Tok.is(Kind))
return true;
- if (getDepth() < MaxDepth) {
+ if (getDepth() < P.getLangOpts().BracketDepth) {
LOpen = (P.*Consumer)();
return false;
}