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forceString: Show position info

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This commit is contained in:
Eelco Dolstra 2014-04-04 21:14:11 +02:00
parent 27b44b8cf7
commit a5fe730940
6 changed files with 46 additions and 30 deletions
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4
src/libexpr/eval.hh
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@ -165,9 +165,9 @@ public:
inline void forceList(Value & v);
inline void forceList(Value & v, const Pos & pos);
void forceFunction(Value & v, const Pos & pos); // either lambda or primop
string forceString(Value & v);
string forceString(Value & v, const Pos & pos = noPos);
string forceString(Value & v, PathSet & context);
string forceStringNoCtx(Value & v);
string forceStringNoCtx(Value & v, const Pos & pos = noPos);
/* Return true iff the value `v' denotes a derivation (i.e. a
set with attribute `type = "derivation"'). */