1 files changed, 77 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/macros.kt b/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/macros.kt
new file mode 100644
index 0000000000..6a95d6a66d
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/macros.kt
@@ -0,0 +1,77 @@
+{#
+// Template to call into rust. Used in several places.
+// Variable names in `arg_list_decl` should match up with arg lists
+// passed to rust via `arg_list_lowered`
+#}
+
+{%- macro to_ffi_call(func) -%}
+    {%- match func.throws_type() %}
+    {%- when Some with (e) %}
+    rustCallWithError({{ e|type_name(ci) }})
+    {%- else %}
+    rustCall()
+    {%- endmatch %} { _status ->
+    _UniFFILib.INSTANCE.{{ func.ffi_func().name() }}({% call arg_list_lowered(func) -%} _status)
+}
+{%- endmacro -%}
+
+{%- macro to_ffi_call_with_prefix(prefix, func) %}
+    {%- match func.throws_type() %}
+    {%- when Some with (e) %}
+    rustCallWithError({{ e|type_name(ci) }})
+    {%- else %}
+    rustCall()
+    {%- endmatch %} { _status ->
+    _UniFFILib.INSTANCE.{{ func.ffi_func().name() }}(
+        {{- prefix }},
+        {% call arg_list_lowered(func) %}
+        _status)
+}
+{%- endmacro %}
+
+{%- macro arg_list_lowered(func) %}
+    {%- for arg in func.arguments() %}
+        {{- arg|lower_fn }}({{ arg.name()|var_name }}),
+    {%- endfor %}
+{%- endmacro -%}
+
+{#-
+// Arglist as used in kotlin declarations of methods, functions and constructors.
+// Note the var_name and type_name filters.
+-#}
+
+{% macro arg_list_decl(func) %}
+    {%- for arg in func.arguments() -%}
+        {{ arg.name()|var_name }}: {{ arg|type_name(ci) }}
+        {%- match arg.default_value() %}
+        {%- when Some with(literal) %} = {{ literal|render_literal(arg, ci) }}
+        {%- else %}
+        {%- endmatch %}
+        {%- if !loop.last %}, {% endif -%}
+    {%- endfor %}
+{%- endmacro %}
+
+{% macro arg_list_protocol(func) %}
+    {%- for arg in func.arguments() -%}
+        {{ arg.name()|var_name }}: {{ arg|type_name(ci) }}
+        {%- if !loop.last %}, {% endif -%}
+    {%- endfor %}
+{%- endmacro %}
+{#-
+// Arglist as used in the _UniFFILib function declarations.
+// Note unfiltered name but ffi_type_name filters.
+-#}
+{%- macro arg_list_ffi_decl(func) %}
+    {%- for arg in func.arguments() %}
+        {{- arg.name()|var_name }}: {{ arg.type_().borrow()|ffi_type_name_by_value -}},
+    {%- endfor %}
+    {%- if func.has_rust_call_status_arg() %}_uniffi_out_err: RustCallStatus, {% endif %}
+{%- endmacro -%}
+
+// Macro for destroying fields
+{%- macro destroy_fields(member) %}
+    Disposable.destroy(
+    {%- for field in member.fields() %}
+        this.{{ field.name()|var_name }}{%- if !loop.last %}, {% endif -%}
+    {% endfor -%})
+{%- endmacro -%}