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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#pragma once
#ifndef SCHEMAGENERATOR_H
#define SCHEMAGENERATOR_H
#include "SchemaLoader.h"
namespace graphql::generator::schema {
struct [[nodiscard]] GeneratorPaths
{
const std::string headerPath;
const std::string sourcePath;
};
struct [[nodiscard]] GeneratorOptions
{
const GeneratorPaths paths;
const bool verbose = false;
const bool stubs = false;
const bool noIntrospection = false;
};
class [[nodiscard]] Generator
{
public:
// Initialize the generator with the introspection schema or a custom GraphQL schema.
explicit Generator(SchemaOptions&& schemaOptions, GeneratorOptions&& options);
// Run the generator and return a list of filenames that were output.
[[nodiscard]] std::vector Build() const noexcept;
private:
[[nodiscard]] std::string getHeaderDir() const noexcept;
[[nodiscard]] std::string getSourceDir() const noexcept;
[[nodiscard]] std::string getHeaderPath() const noexcept;
[[nodiscard]] std::string getSourcePath() const noexcept;
[[nodiscard]] bool outputHeader() const noexcept;
void outputInterfaceDeclaration(std::ostream& headerFile, std::string_view cppType) const;
void outputObjectImplements(std::ostream& headerFile, const ObjectType& objectType) const;
void outputObjectStubs(std::ostream& headerFile, const ObjectType& objectType) const;
void outputObjectDeclaration(
std::ostream& headerFile, const ObjectType& objectType, bool isQueryType) const;
[[nodiscard]] std::string getFieldDeclaration(const InputField& inputField) const noexcept;
[[nodiscard]] std::string getFieldDeclaration(const OutputField& outputField) const noexcept;
[[nodiscard]] std::string getResolverDeclaration(const OutputField& outputField) const noexcept;
[[nodiscard]] bool outputSource() const noexcept;
void outputInterfaceImplementation(std::ostream& sourceFile, std::string_view cppType) const;
void outputInterfaceIntrospection(
std::ostream& sourceFile, const InterfaceType& interfaceType) const;
void outputUnionIntrospection(std::ostream& sourceFile, const UnionType& unionType) const;
void outputObjectImplementation(
std::ostream& sourceFile, const ObjectType& objectType, bool isQueryType) const;
void outputObjectIntrospection(std::ostream& sourceFile, const ObjectType& objectType) const;
void outputIntrospectionInterfaces(std::ostream& sourceFile, std::string_view cppType,
const std::vector& interfaces) const;
void outputIntrospectionFields(
std::ostream& sourceFile, std::string_view cppType, const OutputFieldList& fields) const;
[[nodiscard]] std::string getArgumentDefaultValue(
size_t level, const response::Value& defaultValue) const noexcept;
[[nodiscard]] std::string getArgumentDeclaration(const InputField& argument,
const char* prefixToken, const char* argumentsToken,
const char* defaultToken) const noexcept;
[[nodiscard]] std::string getArgumentAccessType(const InputField& argument) const noexcept;
[[nodiscard]] std::string getResultAccessType(const OutputField& result) const noexcept;
[[nodiscard]] std::string getTypeModifiers(const TypeModifierStack& modifiers) const noexcept;
[[nodiscard]] std::string getIntrospectionType(
std::string_view type, const TypeModifierStack& modifiers) const noexcept;
[[nodiscard]] std::vector outputSeparateFiles() const noexcept;
static const std::string s_currentDirectory;
SchemaLoader _loader;
const GeneratorOptions _options;
const std::string _headerDir;
const std::string _sourceDir;
const std::string _headerPath;
const std::string _sourcePath;
};
} // namespace graphql::generator::schema
#endif // SCHEMAGENERATOR_H