> Unfortunately, there are probably many such buggy macros, since I don't think
> most people have a clear idea when to copy properties when using
> datum->syntax.
This is key, and unfortunately I’m becoming more and more convinced
that there’s no one good answer in the presence of the relativel
On 9/28/16 12:04 PM, William J. Bowman wrote:
On Fri, Sep 23, 2016 at 02:58:23PM -0400, Ryan Culpepper wrote:
It appears that the constructor macro (implemented by self-ctor-transformer
in racket/private/define-struct.rkt) transfers the syntax properties from
the macro use to its expansion (see
On Fri, Sep 23, 2016 at 02:58:23PM -0400, Ryan Culpepper wrote:
> It appears that the constructor macro (implemented by self-ctor-transformer
> in racket/private/define-struct.rkt) transfers the syntax properties from
> the macro use to its expansion (see the datum->syntax in the first
> syntax-cas
On 09/23/2016 02:43 PM, 'William J. Bowman' via Racket Users wrote:
Under certain conditions, the value of a syntax property is duplicated.
I can't figure out why, or if this is a bug, and any advice would be
appreciated.
I've attached the smallest program that generates this behavior that I've
Under certain conditions, the value of a syntax property is duplicated.
I can't figure out why, or if this is a bug, and any advice would be
appreciated.
I've attached the smallest program that generates this behavior that I've
managed to find.
The conditions seem to be:
1. Write a syntax obje
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