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findAlongAttrPath(): Throw AttrPathNotFound

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This commit is contained in:
Eelco Dolstra 2019-04-08 14:20:58 +02:00
parent c101b29133
commit 6b0ca8e803
2 changed files with 4 additions and 2 deletions
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4
src/libexpr/attr-path.cc
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@ -70,7 +70,7 @@ Value * findAlongAttrPath(EvalState & state, const string & attrPath,
Bindings::iterator a = v->attrs->find(state.symbols.create(attr)); Bindings::iterator a = v->attrs->find(state.symbols.create(attr));
if (a == v->attrs->end()) if (a == v->attrs->end())
throw Error(format("attribute '%1%' in selection path '%2%' not found") % attr % attrPath); throw AttrPathNotFound("attribute '%1%' in selection path '%2%' not found", attr, attrPath);
v = &*a->value; v = &*a->value;
} }
@ -82,7 +82,7 @@ Value * findAlongAttrPath(EvalState & state, const string & attrPath,
% attrPath % showType(*v)); % attrPath % showType(*v));
if (attrIndex >= v->listSize()) if (attrIndex >= v->listSize())
throw Error(format("list index %1% in selection path '%2%' is out of range") % attrIndex % attrPath); throw AttrPathNotFound("list index %1% in selection path '%2%' is out of range", attrIndex, attrPath);
v = v->listElems()[attrIndex]; v = v->listElems()[attrIndex];
} }

2
src/libexpr/attr-path.hh
View file

@ -7,6 +7,8 @@
namespace nix { namespace nix {
MakeError(AttrPathNotFound, Error);
Value * findAlongAttrPath(EvalState & state, const string & attrPath, Value * findAlongAttrPath(EvalState & state, const string & attrPath,
Bindings & autoArgs, Value & vIn); Bindings & autoArgs, Value & vIn);