/**
* Creates a small AST to represent the declaration of a unary operator. This
* declaration summarizes the operator's type information.
*
* @param op
* the spelling of the operator
* @param argType
* the type of the argument of the unary operator
* @param resultType
* the type of the result
* @return a UnaryOperatorDeclaration of the given operator with the given
* argument type and returning the given result type
*/
static UnaryOperatorDeclaration DeclareStdUnaryOp(string op, TypeDenoter argType,
TypeDenoter resultType)
{
var opAst = new Operator(op);
var binding = new UnaryOperatorDeclaration(opAst, argType, resultType);
return(binding);
}
public int VisitUnaryOperatorDeclaration(UnaryOperatorDeclaration ast, Frame frame)
{
return(0);
}
public Void VisitUnaryOperatorDeclaration(UnaryOperatorDeclaration ast, Void arg)
{
return(null);
}
void EnterStdDeclaration(UnaryOperatorDeclaration declaration)
{
EnterStdDeclaration(declaration.Operator, declaration);
}
