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- Subject: Correction about `return' usage (was: dofile question)
- From: Tomas <tomas@...>
- Date: Sun, 23 Apr 2006 20:22:10 -0300 (BRT)
On Sun, 23 Apr 2006, Shmuel Zeigerman wrote:
return doesn't have to be the last statement but it has to be "top-level"
that is, not inside some function.
`return' has to be the last statement. For example:
f=assert(loadstring"return 1; print(2)")
stdin:1: [string "return 1; print(2)"]:1: <eof> expected near `print'
stack traceback:
[C]: in function āssert'
stdin:1: in main chunk
[C]: ?
Quoting the manual (5.1):
The return and break statements can only be written as the last statement of a block. If it is really necessary to return or break in the middle of a block, then an explicit inner block can be used, as in the idioms `do return endī and `do break endī, because now return and break are the last statements in their (inner) blocks.
Tomas
