Mojo: request/response bindings

mojo/public/bindings/generators/cpp_templates/interface_macros.tmpl

Index: mojo/public/bindings/generators/cpp_templates/interface_macros.tmpl
diff --git a/mojo/public/bindings/generators/cpp_templates/interface_macros.tmpl b/mojo/public/bindings/generators/cpp_templates/interface_macros.tmpl
new file mode 100644
index 0000000000000000000000000000000000000000..70b6091821503b248b9fc232ce196eeab0725e10
--- /dev/null
+++ b/mojo/public/bindings/generators/cpp_templates/interface_macros.tmpl
@@ -0,0 +1,23 @@
+{%- macro declare_params(parameters) %}
+{%-   for param in parameters -%}
+{{param.kind|cpp_const_wrapper_type}} in_{{param.name}}
+{%- if not loop.last %}, {% endif %}
+{%-   endfor %}
+{%- endmacro %}
+
+{%- macro declare_callback(method) -%}
+mojo::Callback<void(
+{%-   for param in method.response_parameters -%}
+{{param.kind|cpp_result_type}}
+{%- if not loop.last %}, {% endif %}
+{%-   endfor -%}
+)>
+{%- endmacro -%}
+
+{%- macro declare_request_params(method) -%}
+{{declare_params(method.parameters)}}
+{%-   if method.response_parameters != None -%}
+{%- if method.parameters %}, {% endif %}
+const {{declare_callback(method)}}& callback
+{%-   endif -%}
+{%- endmacro -%}