Thanks, just merged.
On 13-05-07 01:46 PM, Anton Ageev wrote:
On Mon, Apr 29, 2013 at 1:32 AM, Dan Kortschak
<dan.kortsc...@adelaide.edu.au <mailto:dan.kortsc...@adelaide.edu.au>>
wrote:
This would a useful addition to the process though, so it is
probably worth filing an issue with the Go project.
I realized it isn't a bug. Go compiler takes in consideration a distance
between '//line' directive and a line with error.
I added experimental support for '//line' directive at
https://github.com/antage/ragel-go/tree/golang-6
I need a feedback about how to accurate go compiler report error line
location in *.rl file.
On 28/04/2013, at 5:30 PM, "Anton Ageev" <ant...@gmail.com
<mailto:ant...@gmail.com>> wrote:
> It's interesting undocumented feature. I played with go examples
and I got very discouraging behaviour.
>
> Example 1.
>
> atoi.go:
> ...
> //line atoi.rl:34
> neg = ttrue // I change 'true' to 'ttrue' to make error message
> case 1:
> //line atoi.rl:35
>
> val = val * 10 + (int(data[p]) - '0')
> ...
>
> I run `go run atoi.go` and I got following message:
>
> # command-line-arguments
>
atoi.rl:34[/home/antage/workspace/ragel-go/examples/go/atoi.go:163]:
undefined: ttrue
>
> It's looking fine.
>
> Example 2.
>
> atoi.go:
> ...
> //line atoi.rl:34
>
> neg = ttrue // I change 'true' to 'ttrue' to make error message
> case 1:
> //line atoi.rl:35
>
> val = val * 10 + (int(data[p]) - '0')
> ...
>
> I just add empty line after '//line atoi.rl:34' directive.
> I got following message:
>
> # command-line-arguments
>
atoi.rl:35[/home/antage/workspace/ragel-go/examples/go/atoi.go:164]:
undefined: ttrue
>
> It's not fine. Error isn't at atoi.rl:35, it's at atoi.rl:34.
>
> Ragel generates a lot of empty lines when embedding an action
code. So we can't rely on '//line' directive to locate errors in .rl
files.
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--
WBR, Anton
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