object-introspection/oi/FuncGen.h
Jake Hillion 31ba8659f0 tbv2: fix pointer codegen
A previous change enabled running OIL tests with specific features enabled.
This highlighted that pointer code generation under TreeBuilder-v2 was very
broken. This change updates pointer code generation to work and enables the
skipped tests. All enabled tests need `expected_json_v2` added to them due to
formatting differences.

Reformatted and rewrote the basic type handler that handles primitives and
pointers. Removed the reliance on `features` to decide whether to generate for
TreeBuilder-v2 as the intermediate features have been removed. Pointers are
treated as containers with a capacity of 1 and a length of 0 if null/a cycle
and 1 if followed. This holds for void pointers where, although they aren't
followed, the length is still set.

There were a couple of other changes needed to enable these tests on TBv2 that
aren't worth their own issues and PRs, I sneaked them in here.

Extra changes:
- Added `Pointer` and `Reference` to TopoSorter so they generate
  `NameProvider` instances. It might be worth visiting the graph differently
  for `NameProvider` as it requires so many instances that others generators do
  not. Will consider that in the future.
- Follow typedefs when calculating exclusive size for a type.

Closes #458.

Test plan:
- CI
- Enabled previously disabled tests.
2024-01-18 16:22:18 +00:00

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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <filesystem>
#include <map>
#include <set>
#include <span>
#include <string>
#include "oi/ContainerInfo.h"
#include "oi/Features.h"
namespace fs = std::filesystem;
namespace oi::detail {
class FuncGen {
public:
static void DeclareExterns(std::string& code);
static void DefineJitLog(std::string& code, FeatureSet features);
static void DeclareStoreData(std::string& testCode);
static void DefineStoreData(std::string& testCode);
static void DeclareEncodeData(std::string& testCode);
static void DefineEncodeData(std::string& testCode);
static void DeclareEncodeDataSize(std::string& testCode);
static void DefineEncodeDataSize(std::string& testCode);
bool DeclareGetSizeFuncs(std::string& testCode,
const ContainerInfoRefSet& containerInfo,
FeatureSet features);
bool DefineGetSizeFuncs(std::string& testCode,
const ContainerInfoRefSet& containerInfo,
FeatureSet features);
static void DeclareGetContainer(std::string& testCode);
static void DeclareGetSize(std::string& testCode, const std::string& type);
static void DefineTopLevelIntrospect(std::string& code,
const std::string& type);
static void DefineTopLevelIntrospectNamed(std::string& code,
const std::string& type,
const std::string& linkageName);
static void DefineTopLevelGetSizeRef(std::string& testCode,
const std::string& rawType,
FeatureSet features);
static void DefineTreeBuilderInstructions(
std::string& testCode,
const std::string& rawType,
size_t exclusiveSize,
std::span<const std::string_view> typeNames);
static void DefineTopLevelGetSizeSmartPtr(std::string& testCode,
const std::string& rawType,
FeatureSet features);
static void DefineGetSizeTypedValueFunc(std::string& testCode,
const std::string& ctype);
static void DefineDataSegmentDataBuffer(std::string& testCode);
static void DefineBackInserterDataBuffer(std::string& code);
static void DefineBasicTypeHandlers(std::string& code);
static ContainerInfo GetOiArrayContainerInfo();
};
} // namespace oi::detail