From 7d0f6aed59b11ef1037e7b0ee4dae1c7288ebb45 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Fri, 4 Jan 2008 14:22:49 +0000
Subject: * New primop `unsafeDiscardStringContext' to get rid of string  
 contexts.  Needed to prevent unnecessary dependencies when building   the
 NixOS manual.

---
 src/libexpr/primops.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src')

diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 9b0df9238849..94410e2bdade 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -942,6 +942,14 @@ static Expr prim_stringLength(EvalState & state, const ATermVector & args)
 }
 
 
+static Expr prim_unsafeDiscardStringContext(EvalState & state, const ATermVector & args)
+{
+    PathSet context;
+    string s = coerceToString(state, args[0], context);
+    return makeStr(s, PathSet());
+}
+
+
 /*************************************************************
  * Primop registration
  *************************************************************/
@@ -1009,6 +1017,8 @@ void EvalState::addPrimOps()
     addPrimOp("toString", 1, prim_toString);
     addPrimOp("__substring", 3, prim_substring);
     addPrimOp("__stringLength", 1, prim_stringLength);
+    addPrimOp("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext);
+    
 }
 
 
-- 
cgit 1.4.1