org.walkmod.javalang.compiler.reflection.CompatibleArgsPredicate Maven / Gradle / Ivy

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Library of compiler components to processs Java code.

There is a newer version: 2.3.10

/*
 Copyright (C) 2015 Raquel Pau and Albert Coroleu.
 
Walkmod is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Walkmod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with Walkmod.  If not, see .*/
package org.walkmod.javalang.compiler.reflection;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

import org.walkmod.javalang.ast.SymbolData;
import org.walkmod.javalang.compiler.symbols.SymbolType;

public class CompatibleArgsPredicate extends AbstractCompatibleArgsPredicate
		implements TypeMappingPredicate {

	public CompatibleArgsPredicate() {
	}

	public CompatibleArgsPredicate(SymbolType[] typeArgs) {
		super(typeArgs);
	}

	public CompatibleArgsPredicate(SymbolData[] typeArgs) {
		SymbolType[] aux = new SymbolType[typeArgs.length];
		int i = 0;
		for (SymbolData sd : typeArgs) {
			if (sd instanceof SymbolType) {
				aux[i] = (SymbolType) sd;
				i++;
			} else {
				throw new IllegalArgumentException(
						"The type args argument must be " + SymbolType.class
								+ " implementation");
			}
		}
		setTypeArgs(aux);
	}

	@Override
	public boolean filter(T method) throws Exception {
		if (method instanceof Method) {
			Method realMethod = (Method) method;
			setVarAgs(realMethod.isVarArgs());
			setGenericParameterTypes(realMethod.getGenericParameterTypes());
			setParameterTypesLenght(realMethod.getParameterTypes().length);
			return super.filter();
		} else if (method instanceof Constructor) {
			Constructor constructor = (Constructor) method;
			setVarAgs(constructor.isVarArgs());
			setGenericParameterTypes(constructor.getGenericParameterTypes());
			setParameterTypesLenght(constructor.getGenericParameterTypes().length);
			return super.filter();
		}
		return false;
	}

}