mixin: introduce -D option to redefine functions from the command-line

[nit.git] / src / model / model.nit

diff --git a/src/model/model.nit b/src/model/model.nit
index eab60f7..f26eb2e 100644 (file)
--- a/src/model/model.nit
+++ b/src/model/model.nit
@@ -1977,6 +1977,16 @@ class MMethodDef
 
        # Is the method definition extern?
        var is_extern = false is writable
+
+       # An optional constant value returned in functions.
+       #
+       # Only some specific primitife value are accepted by engines.
+       # Is used when there is no better implementation available.
+       #
+       # Currently used only for the implementation of the `--define`
+       # command-line option.
+       # SEE: module `mixin`.
+       var constant_value: nullable Object = null is writable
 end
 
 # A local definition of an attribute