From 514b3c7f8345cfcbbe166981214497ed9d93ae18 Mon Sep 17 00:00:00 2001 From: zimbatm Date: Mon, 29 Jan 2018 12:36:59 +0000 Subject: Add isPath primop this is added for completeness' sake since all the other possible `builtins.typeOf` results have a corresponding `builtins.is` --- src/libexpr/primops.cc | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/libexpr') diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 6b0c55e72cd9..39073725e9c4 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -315,6 +315,12 @@ static void prim_isBool(EvalState & state, const Pos & pos, Value * * args, Valu mkBool(v, args[0]->type == tBool); } +/* Determine whether the argument is a path. */ +static void prim_isPath(EvalState & state, const Pos & pos, Value * * args, Value & v) +{ + state.forceValue(*args[0]); + mkBool(v, args[0]->type == tPath); +} struct CompareValues { @@ -2169,6 +2175,7 @@ void EvalState::createBaseEnv() addPrimOp("__isInt", 1, prim_isInt); addPrimOp("__isFloat", 1, prim_isFloat); addPrimOp("__isBool", 1, prim_isBool); + addPrimOp("__isPath", 1, prim_isPath); addPrimOp("__genericClosure", 1, prim_genericClosure); addPrimOp("abort", 1, prim_abort); addPrimOp("__addErrorContext", 2, prim_addErrorContext); -- cgit 1.4.1