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Add error context while evaluating predicates

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This commit is contained in:
John Wiegley 2009-02-26 05:02:49 -04:00
parent fbb734689b
commit 87ec7bc34a
1 changed files with 8 additions and 1 deletions
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7
src/predicate.h
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@ -84,8 +84,15 @@ public:
} }
bool operator()(scope_t& item) { bool operator()(scope_t& item) {
try {
return ! predicate || predicate.calc(item).strip_annotations(what_to_keep); return ! predicate || predicate.calc(item).strip_annotations(what_to_keep);
} }
catch (const std::exception& err) {
add_error_context(_("While determining truth of predicate expression:"));
add_error_context(expr_context(predicate));
throw;
}
}
}; };
string args_to_predicate_expr(value_t::sequence_t::const_iterator begin, string args_to_predicate_expr(value_t::sequence_t::const_iterator begin,