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authorEelco Dolstra <e.dolstra@tudelft.nl>2009-05-15T12·35+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2009-05-15T12·35+0000
commitd407d572fdc72f4eb14cc0f37d7d61446425b663 (patch)
tree039d1409f7bdd30c2e953cf894b06b858db3a6f3 /src/libexpr/nixexpr.hh
parente42975490fa96e811c9fd80435ce20c26f8603f8 (diff)
* Some syntactic sugar for attribute sets: allow {x.y.z = ...;} as a
  shorthand for {x = {y = {z = ...;};};}.  This is especially useful
  for NixOS configuration files, e.g.

    {
      services = {
        sshd = {
          enable = true;
          port = 2022;
        };
      };
    }

  can now be written as

    {
      services.sshd.enable = true;
      services.sshd.port = 2022;
    }

  However, it is currently not permitted to write
  
    {
      services.sshd = {enable = true;};
      services.sshd.port = 2022;
    }

  as this is considered a duplicate definition of `services.sshd'.

Diffstat (limited to 'src/libexpr/nixexpr.hh')
-rw-r--r--src/libexpr/nixexpr.hh1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh
index 43ac19f92a24..c7cdf46df974 100644
--- a/src/libexpr/nixexpr.hh
+++ b/src/libexpr/nixexpr.hh
@@ -11,6 +11,7 @@ namespace nix {
 
 
 MakeError(EvalError, Error)
+MakeError(ParseError, Error)
 MakeError(AssertionError, EvalError)
 MakeError(ThrownError, AssertionError)
 MakeError(Abort, EvalError)