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Re: Problem using MyType[] in macros
On 01/22/2012 09:42 AM, Bill Robinson wrote:
Hi.
Hi again,
I'm trying to make some macros that generate classes. I have come
unstuck trying to expand a java array type with a [] after an expanded
type name to make it an array.
I've made a simplified test case to demonstrate this:
File test.macros.scm:
(define (my-type-helper in)
(syntax-case in (array)
(my-integer
(syntax int))
((array element-type)
(with-syntax ((final-element-type (my-type-helper (syntax element-type))))
(syntax final-element-type[])))))
You need to add my-integer to the literals list.
define (my-type-helper in)
(syntax-case in (array my-integer)
(my-integer
....
Note just a few days ago I checked in an implementation of
bound-identifier=? and re-wrote the implementation of free-identifier=?.
They might be useful. Or just using identifier?
(define (my-type-helper in)
(syntax-case in (array)
(my-integer (identifier? #'my-integer)
Or you could try re-ordering the two clauses in my-type-helper.
--
--Per Bothner
per@bothner.com http://per.bothner.com/