package org.simantics.scl.compiler.constants;

import org.simantics.scl.compiler.internal.codegen.references.Val;
import org.simantics.scl.compiler.internal.codegen.utils.MethodBuilder;
import org.simantics.scl.compiler.types.TVar;
import org.simantics.scl.compiler.types.Type;
import org.simantics.scl.compiler.types.Types;
import org.simantics.scl.compiler.types.kinds.Kinds;

public class UnsafeCoerce extends FunctionValue {    
    private static TVar A = Types.var(Kinds.STAR);
    private static TVar B = Types.var(Kinds.STAR);
    public static final UnsafeCoerce INSTANCE = new UnsafeCoerce();
    
    private UnsafeCoerce() {
        super(new TVar[] {A, B}, Types.NO_EFFECTS, B, A);
    }
    
    @Override
    public Type applyExact(MethodBuilder mb, Val[] parameters) {
        mb.pushBoxed(parameters[0]);
        return getReturnType();
    }
}