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296 lines
10 KiB
C++
296 lines
10 KiB
C++
/*
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* GDevelop Core
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* Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
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* reserved. This project is released under the MIT License.
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*/
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#ifndef METADATAPROVIDER_H
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#define METADATAPROVIDER_H
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#include "GDCore/Extensions/Metadata/InstructionMetadata.h"
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#include "GDCore/String.h"
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namespace gd {
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class BehaviorMetadata;
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class ObjectMetadata;
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class EffectMetadata;
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class ExpressionMetadata;
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class ExpressionMetadata;
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class Platform;
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class PlatformExtension;
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struct FunctionCallNode;
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struct ExpressionNode;
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} // namespace gd
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namespace gd {
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/**
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* \brief A container for metadata about an
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* object/behavior/instruction/expression and its associated extension.
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*/
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template <class T>
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class ExtensionAndMetadata {
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public:
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ExtensionAndMetadata(const gd::PlatformExtension& extension_,
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const T& metadata_)
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: extension(&extension_), metadata(&metadata_){};
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/**
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* \brief Default constructor, only here to satisfy Emscripten bindings.
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* \warning Please do not use.
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* \private
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*/
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ExtensionAndMetadata() : extension(nullptr), metadata(nullptr){};
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/**
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* \brief Get the associated extension.
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*/
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const gd::PlatformExtension& GetExtension() { return *extension; };
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/**
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* \brief Get the metadata.
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*/
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const T& GetMetadata() { return *metadata; };
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private:
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const gd::PlatformExtension* extension;
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const T* metadata;
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};
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/**
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* \brief Allow to easily get metadata for instructions (i.e actions and
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* conditions), expressions, objects and behaviors.
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*
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* \ingroup PlatformDefinition
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*/
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class GD_CORE_API MetadataProvider {
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public:
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/**
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* Get the metadata about a behavior, and its associated extension.
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*/
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static ExtensionAndMetadata<BehaviorMetadata> GetExtensionAndBehaviorMetadata(
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const gd::Platform& platform, gd::String behaviorType);
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/**
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* Get the metadata about an object, and its associated extension.
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*/
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static ExtensionAndMetadata<ObjectMetadata> GetExtensionAndObjectMetadata(
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const gd::Platform& platform, gd::String type);
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/**
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* Get the metadata about an effect, and its associated extension.
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*/
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static ExtensionAndMetadata<EffectMetadata> GetExtensionAndEffectMetadata(
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const gd::Platform& platform, gd::String type);
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/**
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* Get the metadata of an action, and its associated extension.
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* Works for object, behaviors and static actions.
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*/
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static ExtensionAndMetadata<InstructionMetadata>
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GetExtensionAndActionMetadata(const gd::Platform& platform,
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gd::String actionType);
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/**
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* Get the metadata of a condition, and its associated extension.
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* Works for object, behaviors and static conditions.
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*/
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static ExtensionAndMetadata<InstructionMetadata>
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GetExtensionAndConditionMetadata(const gd::Platform& platform,
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gd::String conditionType);
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/**
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* Get information about an expression, and its associated extension.
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* Works for free expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndExpressionMetadata(const gd::Platform& platform,
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gd::String exprType);
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/**
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* Get information about an expression, and its associated extension.
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* Works for object expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndObjectExpressionMetadata(const gd::Platform& platform,
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gd::String objectType,
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gd::String exprType);
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/**
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* Get information about an expression, and its associated extension.
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* Works for behavior expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndBehaviorExpressionMetadata(const gd::Platform& platform,
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gd::String autoType,
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gd::String exprType);
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/**
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* Get information about a string expression, and its associated extension.
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* Works for free expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndStrExpressionMetadata(const gd::Platform& platform,
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gd::String exprType);
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/**
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* Get information about a string expression, and its associated extension.
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* Works for object expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndObjectStrExpressionMetadata(const gd::Platform& platform,
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gd::String objectType,
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gd::String exprType);
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/**
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* Get information about a string expression, and its associated extension.
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* Works for behavior expressions.
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*/
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static ExtensionAndMetadata<ExpressionMetadata>
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GetExtensionAndBehaviorStrExpressionMetadata(const gd::Platform& platform,
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gd::String autoType,
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gd::String exprType);
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/**
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* Get the metadata about a behavior.
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*/
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static const BehaviorMetadata& GetBehaviorMetadata(
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const gd::Platform& platform, gd::String behaviorType);
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/**
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* Get the metadata about an object.
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*/
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static const ObjectMetadata& GetObjectMetadata(const gd::Platform& platform,
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gd::String type);
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/**
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* Get the metadata about an effect.
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*/
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static const EffectMetadata& GetEffectMetadata(const gd::Platform& platform,
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gd::String type);
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/**
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* Get the metadata of an action.
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* Works for object, behaviors and static actions.
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*/
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static const gd::InstructionMetadata& GetActionMetadata(
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const gd::Platform& platform, gd::String actionType);
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/**
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* Get the metadata of a condition.
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* Works for object, behaviors and static conditions.
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*/
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static const gd::InstructionMetadata& GetConditionMetadata(
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const gd::Platform& platform, gd::String conditionType);
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/**
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* Get information about an expression from its type
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* Works for free expressions.
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*/
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static const gd::ExpressionMetadata& GetExpressionMetadata(
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const gd::Platform& platform, gd::String exprType);
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/**
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* Get information about an expression from its type
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* Works for object expressions.
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*/
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static const gd::ExpressionMetadata& GetObjectExpressionMetadata(
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const gd::Platform& platform, gd::String objectType, gd::String exprType);
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/**
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* Get information about an expression from its type
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* Works for behavior expressions.
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*/
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static const gd::ExpressionMetadata& GetBehaviorExpressionMetadata(
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const gd::Platform& platform, gd::String autoType, gd::String exprType);
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/**
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* Get information about a string expression from its type
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* Works for free expressions.
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*/
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static const gd::ExpressionMetadata& GetStrExpressionMetadata(
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const gd::Platform& platform, gd::String exprType);
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/**
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* Get information about a string expression from its type
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* Works for object expressions.
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*/
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static const gd::ExpressionMetadata& GetObjectStrExpressionMetadata(
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const gd::Platform& platform, gd::String objectType, gd::String exprType);
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/**
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* Get information about a string expression from its type
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* Works for behavior expressions.
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*/
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static const gd::ExpressionMetadata& GetBehaviorStrExpressionMetadata(
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const gd::Platform& platform, gd::String autoType, gd::String exprType);
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/**
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* Get information about an expression from its type.
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* Works for free expressions.
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*/
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static const gd::ExpressionMetadata& GetAnyExpressionMetadata(
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const gd::Platform& platform, gd::String exprType);
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/**
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* Get information about an expression from its type.
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* Works for object expressions.
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*/
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static const gd::ExpressionMetadata& GetObjectAnyExpressionMetadata(
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const gd::Platform& platform, gd::String objectType, gd::String exprType);
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static const gd::ExpressionMetadata& GetFunctionCallMetadata(
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const gd::Platform& platform,
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const gd::ObjectsContainer &globalObjectsContainer,
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const gd::ObjectsContainer &objectsContainer,
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FunctionCallNode& node);
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static const gd::ParameterMetadata* GetFunctionCallParameterMetadata(
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const gd::Platform& platform,
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const gd::ObjectsContainer &globalObjectsContainer,
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const gd::ObjectsContainer &objectsContainer,
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FunctionCallNode& functionCall,
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ExpressionNode& parameter);
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static const gd::ParameterMetadata* GetFunctionCallParameterMetadata(
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const gd::Platform& platform,
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const gd::ObjectsContainer &globalObjectsContainer,
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const gd::ObjectsContainer &objectsContainer,
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FunctionCallNode& functionCall,
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int parameterIndex);
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/**
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* Get information about an expression from its type.
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* Works for behavior expressions.
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*/
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static const gd::ExpressionMetadata& GetBehaviorAnyExpressionMetadata(
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const gd::Platform& platform, gd::String autoType, gd::String exprType);
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static bool IsBadExpressionMetadata(const gd::ExpressionMetadata& metadata) {
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return &metadata == &badExpressionMetadata;
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}
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static bool IsBadInstructionMetadata(const gd::InstructionMetadata& metadata) {
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return &metadata == &badInstructionMetadata;
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}
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static bool IsBadBehaviorMetadata(const gd::BehaviorMetadata& metadata) {
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return &metadata == &badBehaviorMetadata;
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}
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virtual ~MetadataProvider();
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private:
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MetadataProvider();
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static PlatformExtension badExtension;
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static BehaviorMetadata badBehaviorMetadata;
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static ObjectMetadata badObjectInfo;
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static EffectMetadata badEffectMetadata;
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static gd::InstructionMetadata badInstructionMetadata;
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static gd::ExpressionMetadata badExpressionMetadata;
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int useless; // Useless member to avoid emscripten "must have a positive
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// integer typeid pointer" runtime error.
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};
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} // namespace gd
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#endif // METADATAPROVIDER_H
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