From c48271aef7e6b0819c497f302127c161845a83d7 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sat, 18 Mar 2023 17:14:42 +0100
Subject: refactor: rewrite the mock macro as a procedural macro

---
 macros/src/mock_input.rs | 51 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 macros/src/mock_input.rs

(limited to 'macros/src/mock_input.rs')

diff --git a/macros/src/mock_input.rs b/macros/src/mock_input.rs
new file mode 100644
index 0000000..379c342
--- /dev/null
+++ b/macros/src/mock_input.rs
@@ -0,0 +1,51 @@
+use syn::parse::{Parse, ParseStream};
+use syn::{braced, Ident, Token, TraitItem, TypePath, WhereClause};
+
+pub struct MockInput
+{
+    pub mock: Ident,
+    pub mocked_trait: TypePath,
+    pub items: Vec<TraitItem>,
+}
+
+impl Parse for MockInput
+{
+    fn parse(input: ParseStream) -> Result<Self, syn::Error>
+    {
+        let mock = input.parse()?;
+
+        let _generics = input.parse::<Option<WhereClause>>()?;
+
+        let _braced_content;
+
+        let _brace = braced!(_braced_content in input);
+
+        input.parse::<Token![impl]>()?;
+
+        let mocked_trait = input.parse()?;
+
+        input.parse::<Token![for]>()?;
+
+        let impl_target = input.parse::<Ident>()?;
+
+        if impl_target != mock {
+            return Err(input.error("Expected this to be the mock"));
+        }
+
+        let content;
+
+        braced!(content in input);
+
+        let mut items = Vec::new();
+
+        while !content.is_empty() {
+            items.push(content.parse()?);
+        }
+
+        Ok(Self {
+            mock,
+            mocked_trait,
+            items,
+        })
+    }
+}
-- 
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