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Include position info in function application

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This allows error messages like:

  error: the anonymous function at `/etc/nixos/configuration.nix:1:1'
    called without required argument `foo', at
    `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:77:59'
This commit is contained in:
Eelco Dolstra 2014-04-04 17:53:52 +02:00
parent 3f8e1f5682
commit b72c8d2e5b
7 changed files with 45 additions and 22 deletions
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18
src/libexpr/nixexpr.hh
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@ -273,6 +273,23 @@ struct ExprBuiltin : Expr
COMMON_METHODS
};
struct ExprApp : Expr
{
Pos pos;
Expr * e1, * e2;
ExprApp(Expr * e1, Expr * e2) : e1(e1), e2(e2) { };
ExprApp(const Pos & pos, Expr * e1, Expr * e2) : pos(pos), e1(e1), e2(e2) { };
void show(std::ostream & str)
{
str << *e1 << " " << *e2;
}
void bindVars(const StaticEnv & env)
{
e1->bindVars(env); e2->bindVars(env);
}
void eval(EvalState & state, Env & env, Value & v);
};
#define MakeBinOp(name, s) \
struct Expr##name : Expr \
{ \
@ -289,7 +306,6 @@ struct ExprBuiltin : Expr
void eval(EvalState & state, Env & env, Value & v); \
};
MakeBinOp(App, "")
MakeBinOp(OpEq, "==")
MakeBinOp(OpNEq, "!=")
MakeBinOp(OpAnd, "&&")