1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/macros.swift b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/macros.swift
new file mode 100644
index 0000000000..0a125e6f61
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/bindings/swift/templates/macros.swift
@@ -0,0 +1,89 @@
+{#
+// 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) -%}
+    {%- call try(func) -%}
+    {%- match func.throws_type() -%}
+    {%- when Some with (e) -%}
+        rustCallWithError({{ e|ffi_converter_name }}.lift) {
+    {%- else -%}
+        rustCall() {
+    {%- endmatch %}
+    {{ func.ffi_func().name() }}({% call arg_list_lowered(func) -%} $0)
+}
+{%- endmacro -%}
+
+{%- macro to_ffi_call_with_prefix(prefix, func) -%}
+{% call try(func) %}
+    {%- match func.throws_type() %}
+    {%- when Some with (e) %}
+    rustCallWithError({{ e|ffi_converter_name }}.lift) {
+    {%- else %}
+    rustCall() {
+    {% endmatch %}
+    {{ func.ffi_func().name() }}(
+        {{- prefix }}, {% call arg_list_lowered(func) -%} $0
+    )
+}
+{%- endmacro %}
+
+{%- macro arg_list_lowered(func) %}
+    {%- for arg in func.arguments() %}
+        {{ arg|lower_fn }}({{ arg.name()|var_name }}),
+    {%- endfor %}
+{%- endmacro -%}
+
+{#-
+// Arglist as used in Swift declarations of methods, functions and constructors.
+// Note the var_name and type_name filters.
+-#}
+
+{% macro arg_list_decl(func) %}
+    {%- for arg in func.arguments() -%}
+        {% if config.omit_argument_labels() %}_ {% endif %}{{ arg.name()|var_name }}: {{ arg|type_name -}}
+        {%- match arg.default_value() %}
+        {%- when Some with(literal) %} = {{ literal|literal_swift(arg) }}
+        {%- else %}
+        {%- endmatch %}
+        {%- if !loop.last %}, {% endif -%}
+    {%- endfor %}
+{%- endmacro %}
+
+{#-
+// Field lists as used in Swift declarations of Records and Enums.
+// Note the var_name and type_name filters.
+-#}
+{% macro field_list_decl(item) %}
+    {%- for field in item.fields() -%}
+        {{ field.name()|var_name }}: {{ field|type_name -}}
+        {%- match field.default_value() %}
+            {%- when Some with(literal) %} = {{ literal|literal_swift(field) }}
+            {%- else %}
+        {%- endmatch -%}
+        {% if !loop.last %}, {% endif %}
+    {%- endfor %}
+{%- endmacro %}
+
+
+{% macro arg_list_protocol(func) %}
+    {%- for arg in func.arguments() -%}
+        {% if config.omit_argument_labels() %}_ {% endif %}{{ arg.name()|var_name }}: {{ arg|type_name -}}
+        {%- if !loop.last %}, {% endif -%}
+    {%- endfor %}
+{%- endmacro %}
+
+
+{%- macro async(func) %}
+{%- if func.is_async() %}async{% endif %}
+{%- endmacro -%}
+
+{%- macro throws(func) %}
+{%- if func.throws() %}throws{% endif %}
+{%- endmacro -%}
+
+{%- macro try(func) %}
+{%- if func.throws() %}try {% else %}try! {% endif %}
+{%- endmacro -%}