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Document implicit return values from procedures (#15738)

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Xavier Noria 2020-10-27 07:27:02 +01:00 • committed by GitHub
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@ -641,6 +641,16 @@ initialised with the type's default value. Note that referential data types will
be ``nil`` at the start of the procedure, and thus may require manual be ``nil`` at the start of the procedure, and thus may require manual
initialisation. initialisation.
A procedure that does not have any ``return`` statement and does not use the
special ``result`` variable returns the value of its last expression. For example,
this procedure
.. code-block:: nim
:test: "nim c $1"
proc helloWorld(): string =
"Hello, World!"
returns the string "Hello, World!".
Parameters Parameters
---------- ----------