package slangc.bytecode;

import slang.data.Mappable;

public final class TypeSignature implements Mappable {
	public final String packageName;
	public final String typeName;
	
	public static final TypeSignature VOID = new TypeSignature("kebab0.core", "void"); // TODO: Make translatable

	public TypeSignature(String packageName, String typeName) {
		/*if (packageName == null) {
			throw new Error("Can't create type signature with null package");
		}*/
		if (typeName == null) {
			throw new Error("Can't create type signature with null type");
		}
		this.packageName = packageName;
		this.typeName = typeName;
	}

	@Override
	public String toString() {
		return packageName + "." + typeName;
	}
	
	public static String arrayToString(TypeSignature[] types) {
		String result = "";
		
		for (int i = 0; i < types.length; i++) {
			if (i != 0) {
				result += ",";
			}
			result += types[i].toString();
		}
		
		return result;
	}

	@Override
	public int mappableHash() {
		return Mappable.hashOf(toString());//toString().hashCode();
	}
	
	@Override
	public boolean mappableEquals(Mappable obj) {
		if (obj instanceof TypeSignature) {
			return this.toString().equals(((TypeSignature)obj).toString());
		} else {
			return false; //super.equals(obj);
		}
	}
}