Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/third_party/rust/uniffi_bindgen/src/scaffolding/templates/ErrorTemplate.rs b/third_party/rust/uniffi_bindgen/src/scaffolding/templates/ErrorTemplate.rs
new file mode 100644
index 0000000000..94538ecaa8
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/scaffolding/templates/ErrorTemplate.rs
@@ -0,0 +1,26 @@
+{#
+// For each error declared in the UDL, we assume the caller has provided a corresponding
+// rust `enum`. We provide the traits for sending it across the FFI, which will fail to
+// compile if the provided struct has a different shape to the one declared in the UDL.
+//
+// We define a unit-struct to implement the trait to sidestep Rust's orphan rule (ADR-0006). It's
+// public so other crates can refer to it via an `[External='crate'] typedef`
+#}
+
+#[::uniffi::derive_error_for_udl(
+    {% if e.is_flat() -%}
+    flat_error,
+    {% if ci.should_generate_error_read(e) -%}
+    with_try_read,
+    {%- endif %}
+    {%- endif %}
+)]
+enum r#{{ e.name() }} {
+    {%- for variant in e.variants() %}
+    r#{{ variant.name() }} {
+        {%- for field in variant.fields() %}
+        r#{{ field.name() }}: {{ field.as_type().borrow()|type_rs }},
+        {%- endfor %}
+    },
+    {%- endfor %}
+}