godot/modules/fbx/fbx_parser/FBXDocumentUtil.h

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/*  FBXDocumentUtil.h                                                    */
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/*
Open Asset Import Library (assimp)
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All rights reserved.

Redistribution and use of this software in source and binary forms,
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  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
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  derived from this software without specific prior
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/** @file  FBXDocumentUtil.h
 *  @brief FBX internal utilities used by the DOM reading code
 */
#ifndef FBX_DOCUMENT_UTIL_H
#define FBX_DOCUMENT_UTIL_H

#include "FBXDocument.h"
#include <memory>
#include <string>

struct Token;
struct Element;

namespace FBXDocParser {
namespace Util {

// Parser errors
void DOMError(const std::string &message);
void DOMError(const std::string &message, const Token *token);
void DOMError(const std::string &message, const Element *element);
void DOMError(const std::string &message, const std::shared_ptr<Element> element);
void DOMError(const std::string &message, const std::shared_ptr<Token> token);

// Parser warnings
void DOMWarning(const std::string &message);
void DOMWarning(const std::string &message, const Token *token);
void DOMWarning(const std::string &message, const Element *element);
void DOMWarning(const std::string &message, const std::shared_ptr<Token> token);
void DOMWarning(const std::string &message, const std::shared_ptr<Element> element);

// fetch a property table and the corresponding property template
const PropertyTable *GetPropertyTable(const Document &doc,
		const std::string &templateName,
		const ElementPtr element,
		const ScopePtr sc,
		bool no_warn = false);

// ------------------------------------------------------------------------------------------------
template <typename T>
const T *ProcessSimpleConnection(const Connection &con,
		bool is_object_property_conn,
		const char *name,
		const ElementPtr element,
		const char **propNameOut = nullptr) {
	if (is_object_property_conn && !con.PropertyName().length()) {
		DOMWarning("expected incoming " + std::string(name) +
						   " link to be an object-object connection, ignoring",
				element);
		return nullptr;
	} else if (!is_object_property_conn && con.PropertyName().length()) {
		DOMWarning("expected incoming " + std::string(name) +
						   " link to be an object-property connection, ignoring",
				element);
		return nullptr;
	}

	if (is_object_property_conn && propNameOut) {
		// note: this is ok, the return value of PropertyValue() is guaranteed to
		// remain valid and unchanged as long as the document exists.
		*propNameOut = con.PropertyName().c_str();
	}

	// Cast Object to AnimationPlayer for example using safe functions, which return nullptr etc
	Object *ob = con.SourceObject();
	ERR_FAIL_COND_V_MSG(!ob, nullptr, "Failed to load object from SourceObject ptr");
	return dynamic_cast<const T *>(ob);
}

} // namespace Util
} // namespace FBXDocParser

#endif // FBX_DOCUMENT_UTIL_H