Forward type declaration with two files

Question

I have two files.

File 1:

namespace A

type A1() = 
   // ....

File 2:

namespace A

type A2() = 
   // ....

I can use A1 and A2 types in File 2, but I can see only A1 in File 1. I think it is because compiler don't know about A2 when it is parsing File 1.

Is there any way to make something like forward type declaration in this case ? Or to change the order of parsing the source files by compiler. It will be enough for me to have A1 and A2 in File1, and only A2 in File1.

Update:

I believe it is not dublicate of this question. I know about and keyword in the type declaration, but I can not merge two different files in one (See question title).

Quote from the answer: "The only way to define mutually recursive types in F# is to put them in the same source file and use the and keyword:" — John Palmer, Jun 27 '15 at 07:03
But I don't need a recursive type declaration. I want to change order of parsing source files. I need to see A1 and A2 in File1, and only A2 in File2 — ceth, Jun 27 '15 at 07:07
How can I do it in VS? I have tried to move them by mouse, but it is impossible. — ceth, Jun 27 '15 at 07:09
The duplicate is probably this one then:http://stackoverflow.com/questions/2908473/f-compiler-order-of-source-files — John Palmer, Jun 27 '15 at 07:12

score 1 · Accepted Answer · answered Jun 27 '15 at 08:03

1

change the order of parsing the source files

This can be done by changing the order of the files in Visual Studio: right-click and Move Up respectively Move Down

answered Jun 27 '15 at 08:03

CaringDev

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score 1 · Answer 2 · answered Jun 29 '15 at 07:30

1

If you have the F# Power Tools installed, Alt-UpArrow and Alt-DownArrow also work, IIRC.

answered Jun 29 '15 at 07:30

Kit

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Forward type declaration with two files

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