refactor(mingling_picker): move parse result out of requirement and into

pattern

BREAKING CHANGE: `PickerRequirement` no longer stores a `PickerResult`.
Parsed results are now held in the `PickerPattern` structs.
The `result`, `result_mut`, `set_result`, `reset_result`, and
`with_result` methods on `PickerRequirement` have been removed.
The `Picker::pick` method is introduced to begin a pattern definition.

1 files changed, 18 insertions, 4 deletions

diff --git a/mingling_picker/src/picker/patterns.rs b/mingling_picker/src/picker/patterns.rs
index 74a8cd8..80632d5 100644
--- a/mingling_picker/src/picker/patterns.rs
+++ b/mingling_picker/src/picker/patterns.rs
@@ -1,12 +1,26 @@
-use crate::{Pickable, PickerArguments, PickerRequirement};
+use crate::{Pickable, Picker, PickerArguments, PickerRequirement, PickerResult};
 
 mingling_picker_macros::internal_repeat! (1..=32 => {
-    pub struct PickerPattern$<'a, (Type$,)+>
-    where (Type$: Pickable + Default,)+
+    pub struct PickerPattern$<'a, (T$,)+>
+    where (T$: Pickable + Default,)+
     {
         pub args: PickerArguments<'a>,
         (
-            pub require_$: PickerRequirement<'a, Type$>,
+            pub require_$: &'a PickerRequirement<'a, T$>,
+            pub result_$: PickerResult<T$>,
         )+
     }
 });
+
+impl<'a> Picker<'a> {
+    pub fn pick<N>(self, req: &'a PickerRequirement<'a, N>) -> PickerPattern1<'a, N>
+    where
+        N: Pickable + Default,
+    {
+        PickerPattern1 {
+            args: self.args,
+            require_1: req,
+            result_1: PickerResult::Unparsed,
+        }
+    }
+}