object constructor syntax compiler weirdness

[Mike Lin <mikelin@mit.edu>]

Hello,

The following are by no means common or advisable syntax, but I was
curious if there is a rationale behind why certain things are syntax
errors or not. I'm using 3.08.4 -- apologies if this was fixed or
modified in 3.09.


class circle radius =
  let pi = 3.14159 in
  object
   method area = pi *. radius *.radius
  end

>> fine

class circle2 radius =
  let pi = 3.14159 in
    print_endline "Creating a circle";
    object
     method area = pi *. radius *.radius
    end

>> syntax error

Most curiously:

class circle3 radius =
  let pi = 3.14159 in
    (object
      method area = pi *. radius *.radius
     end)

>> fine

class circle4 radius =
  let pi = 3.14159 in
    begin
     object
      method area = pi *. radius *.radius
     end
    end

>> syntax error