Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 31 insertions, 0 deletions

diff --git a/third_party/rust/uniffi_bindgen/src/backend/declarations.rs b/third_party/rust/uniffi_bindgen/src/backend/declarations.rs
new file mode 100644
index 0000000000..320cfe995c
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/backend/declarations.rs
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use super::CodeOracle;
+
+/// A trait that is able to render a declaration about a particular member declared in
+/// the `ComponentInterface`.
+/// Like `CodeType`, it can render declaration code and imports. It also is able to render
+/// code at start-up of the FFI.
+/// All methods are optional, and there is no requirement that the trait be used for a particular
+/// `interface::` member. Thus, it can also be useful for conditionally rendering code.
+pub trait CodeDeclaration {
+    /// A list of imports that are needed if this type is in use.
+    /// Classes are imported exactly once.
+    fn imports(&self, _oracle: &dyn CodeOracle) -> Option<Vec<String>> {
+        None
+    }
+
+    /// Code (one or more statements) that is run on start-up of the library,
+    /// but before the client code has access to it.
+    fn initialization_code(&self, _oracle: &dyn CodeOracle) -> Option<String> {
+        None
+    }
+
+    /// Code which represents this member. e.g. the foreign language class definition for
+    /// a given Object type.
+    fn definition_code(&self, _oracle: &dyn CodeOracle) -> Option<String> {
+        None
+    }
+}