com.badlogic.gdx.jnigen.parsing.JniHeaderCMethodParser Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of gdx-jnigen Show documentation

libGDX jnigen library

There is a newer version: 2.5.2

/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * 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.
 ******************************************************************************/

package com.badlogic.gdx.jnigen.parsing;

import java.util.ArrayList;

public class JniHeaderCMethodParser implements CMethodParser {
	private static final String C_METHOD_MARKER = "JNIEXPORT";

	public CMethodParserResult parse (String headerFile) {
		ArrayList methods = new ArrayList();

		int index = headerFile.indexOf(C_METHOD_MARKER);
		if (index == -1) return null;
		while (index >= 0) {
			CMethod method = parseCMethod(headerFile, index);
			if (method == null) throw new RuntimeException("Couldn't parse method");
			methods.add(method);
			index = headerFile.indexOf(C_METHOD_MARKER, method.endIndex);
		}
		return new CMethodParserResult(methods);
	}

	private CMethod parseCMethod (String headerFile, int start) {
		int headEnd = headerFile.indexOf('(', start);
		String head = headerFile.substring(start, headEnd).trim();

		String returnType = head.split(" ")[1].trim();

		int argsStart = headEnd + 1;
		int argsEnd = headerFile.indexOf(')', argsStart);
		String[] args = headerFile.substring(argsStart, argsEnd).split(",");

		return new CMethod(returnType, head, args, start, argsEnd + 1);
	}
}