generator/templates/mock_api.cpp

//* Copyright 2017 The Dawn & Tint Authors
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{% set api = metadata.api.lower() %}
#include "dawn/common/Log.h"
#include "mock_{{api}}.h"

using namespace testing;

namespace {
    {% for type in by_category["object"] %}
        {% for method in c_methods(type) %}
            {{as_cType(method.return_type.name)}} Forward{{as_MethodSuffix(type.name, method.name)}}(
                {{-as_cType(type.name)}} self
                {%- for arg in method.arguments -%}
                    , {{as_annotated_cType(arg)}}
                {%- endfor -%}
            ) {
                auto object = reinterpret_cast<ProcTableAsClass::Object*>(self);
                return object->procs->{{as_CppMethodSuffix(type.name, method.name)}}(self
                    {%- for arg in method.arguments -%}
                        , {{as_varName(arg.name)}}
                    {%- endfor -%}
                );
            }
        {% endfor %}

    {% endfor %}
}

ProcTableAsClass::~ProcTableAsClass() {
}

{% set Prefix = metadata.proc_table_prefix %}
void ProcTableAsClass::GetProcTable({{Prefix}}ProcTable* table) {
    {% for type in by_category["object"] %}
        {% for method in c_methods(type) %}
            table->{{as_varName(type.name, method.name)}} = reinterpret_cast<{{as_cProc(type.name, method.name)}}>(Forward{{as_MethodSuffix(type.name, method.name)}});
        {% endfor %}
    {% endfor %}

    {% for type in by_category["structure"] if type.has_free_members_function %}
        table->{{as_varName(type.name, Name("free members"))}} = []({{as_cType(type.name)}} {{as_varName(type.name)}}) {
            static bool calledOnce = false;
            if (!calledOnce) {
                calledOnce = true;
                dawn::WarningLog() << "No mock available for {{as_varName(type.name, Name('free members'))}}";
            }
        };
    {% endfor %}
}

{% for type in by_category["object"] %}
    {% for method in type.methods %}
        {% set Suffix = as_CppMethodSuffix(type.name, method.name) %}
        {% if has_callbackInfoStruct(method) %}
            {{as_cType(method.return_type.name)}} ProcTableAsClass::{{Suffix}}(
                {{-as_cType(type.name)}} {{as_varName(type.name)}}
                {%- for arg in method.arguments -%}
                    , {{as_annotated_cType(arg)}}
                {%- endfor -%}
            ) {
                ProcTableAsClass::Object* object = reinterpret_cast<ProcTableAsClass::Object*>({{as_varName(type.name)}});
                object->m{{Suffix}}Callback = callbackInfo.callback;
                object->m{{Suffix}}Userdata1 = callbackInfo.userdata1;
                object->m{{Suffix}}Userdata2 = callbackInfo.userdata2;

                On{{Suffix}}(
                    {{-as_varName(type.name)}}
                    {%- for arg in method.arguments -%}
                        , {{as_varName(arg.name)}}
                    {%- endfor -%}
                );
                {% if method.return_type.name.get() == "future" %}
                    return {mNextFutureID++};
                {% endif %}
            }
            {% set CallbackInfoType = (method.arguments|last).type %}
            {% set CallbackType = find_by_name(CallbackInfoType.members, "callback").type %}
            void ProcTableAsClass::Call{{Suffix}}Callback(
                {{-as_cType(type.name)}} {{as_varName(type.name)}}
                {%- for arg in CallbackType.arguments -%}
                    , {{as_annotated_cType(arg)}}
                {%- endfor -%}
            ) {
                ProcTableAsClass::Object* object = reinterpret_cast<ProcTableAsClass::Object*>({{as_varName(type.name)}});
                object->m{{Suffix}}Callback(
                    {%- for arg in CallbackType.arguments -%}
                        {{as_varName(arg.name)}}{{", "}}
                    {%- endfor -%}
                    object->m{{Suffix}}Userdata1, object->m{{Suffix}}Userdata2);
            }
        {% endif %}
    {% endfor %}
{% endfor %}

// Manually implement some callback helpers for testing.
void ProcTableAsClass::CallDeviceLostCallback(WGPUDevice device, WGPUDeviceLostReason reason, WGPUStringView message) {
    ProcTableAsClass::Object* object = reinterpret_cast<ProcTableAsClass::Object*>(device);
    object->mDeviceLostCallback(&device, reason, message, object->mDeviceLostUserdata1,
                                object->mDeviceLostUserdata2);
}
void ProcTableAsClass::CallDeviceUncapturedErrorCallback(WGPUDevice device, WGPUErrorType type, WGPUStringView message) {
    ProcTableAsClass::Object* object = reinterpret_cast<ProcTableAsClass::Object*>(device);
    object->mUncapturedErrorCallback(&device, type, message, object->mUncapturedErrorUserdata1,
                                     object->mUncapturedErrorUserdata2);
}

{% for type in by_category["object"] %}
    {{as_cType(type.name)}} ProcTableAsClass::GetNew{{type.name.CamelCase()}}() {
        mObjects.emplace_back(new Object);
        mObjects.back()->procs = this;
        return reinterpret_cast<{{as_cType(type.name)}}>(mObjects.back().get());
    }
{% endfor %}

MockProcTable::MockProcTable() = default;

MockProcTable::~MockProcTable() = default;

void MockProcTable::IgnoreAllReleaseCalls() {
    {% for type in by_category["object"] %}
        EXPECT_CALL(*this, {{as_CppMethodSuffix(type.name, Name("release"))}}(_)).Times(AnyNumber());
    {% endfor %}
}