1 files changed, 125 insertions, 0 deletions
diff --git a/mojo/public/tools/bindings/generators/js_templates/fuzzing.tmpl b/mojo/public/tools/bindings/generators/js_templates/fuzzing.tmpl
new file mode 100644
index 0000000000..fb535fe03a
--- /dev/null
+++ b/mojo/public/tools/bindings/generators/js_templates/fuzzing.tmpl
@@ -0,0 +1,125 @@
+{%- macro get_handle_deps(kind, name) -%}
+{%-   if kind|is_struct_kind or kind|is_union_kind -%}
+{{name}}.getHandleDeps()
+{%-   elif kind|is_array_kind -%}
+[].concat.apply([], {{name}}.map(function(val) {
+  if (val) {
+    return {{get_handle_deps(kind.kind, 'val')|indent(4)}};
+  }
+  return [];
+}))
+{%-   elif kind|is_map_kind -%}
+[].concat.apply([], Array.from({{name}}.values()).map(function(val) {
+  if (val) {
+    return {{get_handle_deps(kind.value_kind, 'val')|indent(4)}};
+  }
+  return [];
+}))
+{%-   elif kind|is_any_handle_or_interface_kind -%}
+  ["{{kind|fuzz_handle_name}}"]
+{%- else -%}
+  []
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro set_handles(kind, name) -%}
+{%-   if kind|is_struct_kind or kind|is_union_kind -%}
+idx = {{name}}.setHandlesInternal_(handles, idx)
+{%-   elif kind|is_array_kind -%}
+{{name}}.forEach(function(val) {
+  {{set_handles(kind.kind, 'val')|indent(2)}};
+})
+{%-   elif kind|is_map_kind -%}
+{{name}}.forEach(function(val) {
+  {{set_handles(kind.value_kind, 'val')|indent(2)}};
+})
+{%-   elif kind|is_any_handle_or_interface_kind -%}
+{{name}} = handles[idx++];
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro build_call(obj, operation, type, name) -%}
+{%-   if name -%}
+{{obj}}.{{operation}}{{type}}({{((name,) + varargs)|join(', ')}})
+{%-   else -%}
+{{obj}}.{{operation}}{{type}}({{varargs|join(', ')}})
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate_enum(obj, operation, kind, name) -%}
+{%-   if kind.max_value is not none -%}
+{{build_call(obj, operation, 'Enum', name, '0', kind.max_value)}}
+{%-   else -%}
+{{build_call(obj, operation, 'Enum', name)}}
+{%-   endif %}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate_array(obj, operation, kind, name) -%}
+{%-   if operation == 'mutate' -%}
+{{obj}}.{{operation}}Array({{name}}, function(val) {
+  return {{generate_or_mutate(obj, operation, kind.kind, 'val')|indent(2)}};
+})
+{%-   else -%}
+{{obj}}.{{operation}}Array(function() {
+  return {{generate_or_mutate(obj, operation, kind.kind)|indent(2)}};
+})
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate_map(obj, operation, kind, name) -%}
+{%-   if operation == 'mutate' -%}
+{{obj}}.{{operation}}Map({{name}},
+  function(val) {
+    return {{generate_or_mutate(obj, operation, kind.key_kind, 'val')|indent(4)}};
+  },
+  function(val) {
+    return {{generate_or_mutate(obj, operation, kind.value_kind, 'val')|indent(4)}};
+  })
+{%-   else -%}
+{{obj}}.{{operation}}Map(
+  function() {
+    return {{generate_or_mutate(obj, operation, kind.key_kind)|indent(4)}};
+  },
+  function() {
+    return {{generate_or_mutate(obj, operation, kind.value_kind)|indent(4)}};
+  })
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate_primitive(obj, operation, kind, name) -%}
+{%-   if kind|is_reference_kind -%}
+{{build_call(obj, operation, kind|primitive_to_fuzz_type, name, kind.is_nullable|to_js_boolean)}}
+{%-   else -%}
+{{build_call(obj, operation, kind|primitive_to_fuzz_type, name)}}
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate_interface(obj, operation, kind, name) -%}
+{%-   if kind|is_interface_request_kind -%}
+{{build_call(obj, operation, 'InterfaceRequest', name, '"' ~ kind.kind.module.namespace ~ '.' ~ kind.kind.name ~ '"', kind.is_nullable|to_js_boolean)}}
+{%-   elif kind|is_interface_kind -%}
+{{build_call(obj, operation, 'Interface', name, '"' ~ kind.module.namespace ~ '.' ~ kind.name ~ '"', kind.is_nullable|to_js_boolean)}}
+{%-   elif kind|is_associated_interface_request_kind -%}
+{{build_call(obj, operation, 'AssociatedInterfaceRequest', name, '"' ~ kind.kind.module.namespace ~ '.' ~ kind.kind.name ~ '"', kind.is_nullable|to_js_boolean)}}
+{%-   elif kind|is_associated_interface_kind -%}
+{{build_call(obj, operation, 'AssociatedInterface', name, '"' ~ kind.kind.module.namespace ~ '.' ~ kind.kind.name ~ '"', kind.is_nullable|to_js_boolean)}}
+{%-   endif -%}
+{%- endmacro -%}
+
+{%- macro generate_or_mutate(obj, operation, kind, name='') -%}
+{%-   if kind|is_primitive_kind -%}
+{{generate_or_mutate_primitive(obj, operation, kind, name)}}
+{%-   elif kind|is_any_interface_kind -%}
+{{generate_or_mutate_interface(obj, operation, kind, name)}}
+{%-   elif kind|is_enum_kind -%}
+{{generate_or_mutate_enum(obj, operation, kind, name)}}
+{%-   elif kind|is_struct_kind -%}
+{{build_call(obj, operation, 'Struct', kind.module.namespace ~ '.' ~ kind.name, kind.is_nullable|to_js_boolean)}}
+{%-   elif kind|is_union_kind -%}
+{{build_call(obj, operation, 'Union', kind.module.namespace ~ '.' ~ kind.name, kind.is_nullable|to_js_boolean)}}
+{%-   elif kind|is_array_kind -%}
+{{generate_or_mutate_array(obj, operation, kind, name)}}
+{%-   elif kind|is_map_kind -%}
+{{generate_or_mutate_map(obj, operation, kind, name)}}
+{%-   endif -%}
+{%- endmacro -%}