diff options
Diffstat (limited to 'src/libexpr/value-to-json.cc')
| -rw-r--r-- | src/libexpr/value-to-json.cc | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/libexpr/value-to-json.cc b/src/libexpr/value-to-json.cc index bfea24d40..517da4c01 100644 --- a/src/libexpr/value-to-json.cc +++ b/src/libexpr/value-to-json.cc @@ -10,11 +10,11 @@ namespace nix { void printValueAsJSON(EvalState & state, bool strict, - Value & v, JSONPlaceholder & out, PathSet & context) + Value & v, const Pos & pos, JSONPlaceholder & out, PathSet & context) { checkInterrupt(); - if (strict) state.forceValue(v); + if (strict) state.forceValue(v, pos); switch (v.type()) { @@ -40,7 +40,7 @@ void printValueAsJSON(EvalState & state, bool strict, break; case nAttrs: { - auto maybeString = state.tryAttrsToString(noPos, v, context, false, false); + auto maybeString = state.tryAttrsToString(pos, v, context, false, false); if (maybeString) { out.write(*maybeString); break; @@ -54,18 +54,18 @@ void printValueAsJSON(EvalState & state, bool strict, for (auto & j : names) { Attr & a(*v.attrs->find(state.symbols.create(j))); auto placeholder(obj.placeholder(j)); - printValueAsJSON(state, strict, *a.value, placeholder, context); + printValueAsJSON(state, strict, *a.value, *a.pos, placeholder, context); } } else - printValueAsJSON(state, strict, *i->value, out, context); + printValueAsJSON(state, strict, *i->value, *i->pos, out, context); break; } case nList: { auto list(out.list()); - for (unsigned int n = 0; n < v.listSize(); ++n) { + for (auto elem : v.listItems()) { auto placeholder(list.placeholder()); - printValueAsJSON(state, strict, *v.listElems()[n], placeholder, context); + printValueAsJSON(state, strict, *elem, pos, placeholder, context); } break; } @@ -79,18 +79,20 @@ void printValueAsJSON(EvalState & state, bool strict, break; case nThunk: - throw TypeError("cannot convert %1% to JSON", showType(v)); - case nFunction: - throw TypeError("cannot convert %1% to JSON", showType(v)); + auto e = TypeError({ + .msg = hintfmt("cannot convert %1% to JSON", showType(v)), + .errPos = v.determinePos(pos) + }); + throw e.addTrace(pos, hintfmt("message for the trace")); } } void printValueAsJSON(EvalState & state, bool strict, - Value & v, std::ostream & str, PathSet & context) + Value & v, const Pos & pos, std::ostream & str, PathSet & context) { JSONPlaceholder out(str); - printValueAsJSON(state, strict, v, out, context); + printValueAsJSON(state, strict, v, pos, out, context); } void ExternalValueBase::printValueAsJSON(EvalState & state, bool strict, |