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-rw-r--r--src/fix-ng/primops.hh22
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diff --git a/src/fix-ng/primops.hh b/src/fix-ng/primops.hh
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+#ifndef __PRIMOPS_H
+#define __PRIMOPS_H
+
+#include "eval.hh"
+
+
+/* Load and evaluate an expression from path specified by the
+   argument. */ 
+Expr primImport(EvalState & state, Expr arg);
+
+
+/* Construct (as a unobservable) side effect) a Nix derivation
+   expression that performs the derivation described by the argument
+   set.  Returns the original set extended with the following
+   attributes: `outPath' containing the primary output path of the
+   derivation; `drvPath' containing the path of the Nix expression;
+   and `type' set to `derivation' to indicate that this is a
+   derivation. */
+Expr primDerivation(EvalState & state, Expr args);
+
+
+#endif /* !__PRIMOPS_H */