Introduces #[WPContextual] derive macro

Cargo.toml

@@ -2,15 +2,15 @@
 members = [
   "wp_api",
   "wp_cli",
+  "wp_derive",
   "wp_networking",
   "wp_uniffi_bindgen",
 ]
 resolver = "2"
 
 [workspace.dependencies]
-# External traits in UDL is only available since https://github.com/mozilla/uniffi-rs/pull/1867
-# Point to a specific commit until a new version is released
 uniffi = "0.27.0"
+thiserror = "1.0"
 # We need to match the version used in `reqwest`: https://github.com/seanmonstar/reqwest/blob/master/Cargo.toml#L84
 # So that we can implement our own traits and it'll work with both reqwest types as well as http types
 #

wp_api/Cargo.toml

@@ -13,7 +13,7 @@ url = "2.5"
 parse_link_header = "0.3"
 serde = { version = "1.0", features = [ "derive" ] }
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = { workspace = true }
 uniffi = { workspace = true }
 
 [build-dependencies]

wp_api/src/lib.rs

@@ -192,4 +192,4 @@ pub fn get_link_header(response: &WPNetworkResponse, name: &str) -> Option<WPRes
     None
 }
 
-uniffi::setup_scaffolding!("wp_api");
+uniffi::setup_scaffolding!();

wp_api/src/posts.rs

@@ -2,14 +2,23 @@ use serde::{Deserialize, Serialize};
 
 pub trait PostNetworkingInterface: Send + Sync {}
 
-#[derive(Default, uniffi::Record)]
+#[derive(uniffi::Record)]
 pub struct PostListParams {
     #[uniffi(default = 1)]
     pub page: u32,
     #[uniffi(default = 10)]
     pub per_page: u32,
 }
 
+impl Default for PostListParams {
+    fn default() -> Self {
+        Self {
+            page: 1,
+            per_page: 10,
+        }
+    }
+}
+
 #[derive(uniffi::Record)]
 pub struct PostCreateParams {
     pub title: Option<String>,

wp_derive/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "wp_derive"
+version = "0.1.0"
+edition = "2021"
+autotests = false
+
+[lib]
+proc-macro = true
+
+[[test]]
+name = "tests"
+path = "tests/all_tests.rs"
+
+[dev-dependencies]
+trybuild = { version = "1.0", features = ["diff"] }
+
+[dependencies]
+proc-macro2 = "1.0"
+quote = "1.0"
+serde = { version = "1.0", features = [ "derive" ] }
+syn = { version = "2.0", features = ["extra-traits"] }
+thiserror = { workspace = true }
+uniffi = { workspace = true }