Update SPECIFICATION.MD
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@ -273,6 +273,18 @@ additionally, a None will be evaluated as "false" and Just as "true" in a boolea
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error is a form which describes an error that occurred, it is similar to the Go programming language and is returned as a monad like the maybe monad above and is unwrapped in a similar way, take a look at the tunnel section for an example
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### panic
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calling panic on a variable that has an error will halt execution of the node that is running.
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```
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i32 n = <>; ! this can also be written `i32 b = none;`
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i32 e ?= n; ! this will be an error
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if (e.err) { ! since the 'none' error is zero this will only branch if an error exists on the variable
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panic(e);
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}
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```
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## datastructures
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### list
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@ -280,7 +292,7 @@ error is a form which describes an error that occurred, it is similar to the Go
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syntax
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```
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(item1 item2 …)
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«form»[] «atom_token» = [item1 item2 …];
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```
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### set
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@ -290,7 +302,7 @@ same as list except does not allow duplicates, allows set operations
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n is the starting size of the set
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```
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«form»{} «atom_token»;
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«form»{} «atom_token»();
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```
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sets also have the following transforms associated with them
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@ -300,7 +312,7 @@ sets also have the following transforms associated with them
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a simple form to form storage
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```
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«form» ~> «form» «atom_token»;
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«form» ~> «form» «atom_token»();
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```
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### tunnel
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