public If(Expr condition, Stmt thenBranch, Stmt elseBranch)
{
this.condition = condition;
this.thenBranch = thenBranch;
this.elseBranch = elseBranch;
}
private void Resolve(Stmt stmt)
{
stmt.Accept(this);
}
public While(Expr condition, Stmt body)
{
this.condition = condition;
this.body = body;
}