diff options
Diffstat (limited to 'src/libexpr/eval.cc')
| -rw-r--r-- | src/libexpr/eval.cc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index ef167087b..d29ff5543 100644 --- a/src/libexpr/eval.cc +++ b/src/libexpr/eval.cc @@ -147,7 +147,10 @@ void Value::print(const SymbolTable & symbols, std::ostream & str, else { str << "[ "; for (auto v2 : listItems()) { - v2->print(symbols, str, seen); + if (v2) + v2->print(symbols, str, seen); + else + str << "(nullptr)"; str << " "; } str << "]"; @@ -184,6 +187,11 @@ void Value::print(const SymbolTable & symbols, std::ostream & str, bool showRepe print(symbols, str, showRepeated ? nullptr : &seen); } +// Pretty print types for assertion errors +std::ostream & operator << (std::ostream & os, const ValueType t) { + os << showType(t); + return os; +} std::string printValue(const EvalState & state, const Value & v) { |