public While(Expr cond, Stmt body)
{
this.cond = cond;
this.body = body;
}
public Do(Stmt body, Expr cond)
{
this.body = body;
this.cond = cond;
}
public object Execute(Stmt stmt)
{
return(stmt.Accept(this));
}
public If(Expr cond, Stmt thenBranch, Stmt elseBranch)
{
this.cond = cond;
this.thenBranch = thenBranch;
this.elseBranch = elseBranch;
}
public object Resolve(Stmt stmt)
{
return(stmt.Accept(this));
}