Allow Mappers to contribute Vars to interpolation.

See #218.
2021-09-27 16:07:48 +10:00
parent dd18549686
commit 1d48b6f720
3 changed files with 39 additions and 0 deletions
@@ -115,6 +115,11 @@ type Mapper interface {
 	Decode(ctx *DecodeContext, target reflect.Value) error
 }

+// VarsContributor can be implemented by a Mapper to contribute Vars during interpolation.
+type VarsContributor interface {
+	Vars(ctx *Value) Vars
+}
+
 // A BoolMapper is a Mapper to a value that is a boolean.
 //
 // This is used solely for formatting help.