Re: [racket-dev] parse errors in types, poly-dots cause me headaches
On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Sam _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
Attached is the screen shot of the error report. On Nov 18, 2014, at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
No, I ran it, it barfed, and then I figured out what went wrong. Then I sent you an email with a fix. Unfortunately, that fix isn't enough to make the program type check. Partly, there's an internal error, but that's a missing case that will take work to support properly. We can do better with the error message as well, by special casing ... in -*, I think. I don't, however, get the unbound identifier error that is in your screenshot. I just got the error message from your original post. Can you send the exact program that produced the error in the screenshot? Sam On Tue, Nov 18, 2014 at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
What I sent is the exact program that produced the attached error in today's drracket [updated around 10am]. On Nov 18, 2014, at 11:58 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: No, I ran it, it barfed, and then I figured out what went wrong. Then I sent you an email with a fix. Unfortunately, that fix isn't enough to make the program type check. Partly, there's an internal error, but that's a missing case that will take work to support properly. We can do better with the error message as well, by special casing ... in -*, I think. I don't, however, get the unbound identifier error that is in your screenshot. I just got the error message from your original post. Can you send the exact program that produced the error in the screenshot? Sam On Tue, Nov 18, 2014 at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
With that program, I get this error message: unsaved editor:7:48: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y Which you also got. What changed it from the parse error to the unbound identifier error? Sam On Tue, Nov 18, 2014 at 12:05 PM, Matthias Felleisen matth...@ccs.neu.edu wrote: What I sent is the exact program that produced the attached error in today's drracket [updated around 10am]. On Nov 18, 2014, at 11:58 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: No, I ran it, it barfed, and then I figured out what went wrong. Then I sent you an email with a fix. Unfortunately, that fix isn't enough to make the program type check. Partly, there's an internal error, but that's a missing case that will take work to support properly. We can do better with the error message as well, by special casing ... in -*, I think. I don't, however, get the unbound identifier error that is in your screenshot. I just got the error message from your original post. Can you send the exact program that produced the error in the screenshot? Sam On Tue, Nov 18, 2014 at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
I am sending you the status line from DrRacket, version 6.1.1.5--2014-11-18(c4684c12/d) [3m]. On Nov 18, 2014, at 12:10 PM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: With that program, I get this error message: unsaved editor:7:48: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y Which you also got. What changed it from the parse error to the unbound identifier error? Sam On Tue, Nov 18, 2014 at 12:05 PM, Matthias Felleisen matth...@ccs.neu.edu wrote: What I sent is the exact program that produced the attached error in today's drracket [updated around 10am]. On Nov 18, 2014, at 11:58 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: No, I ran it, it barfed, and then I figured out what went wrong. Then I sent you an email with a fix. Unfortunately, that fix isn't enough to make the program type check. Partly, there's an internal error, but that's a missing case that will take work to support properly. We can do better with the error message as well, by special casing ... in -*, I think. I don't, however, get the unbound identifier error that is in your screenshot. I just got the error message from your original post. Can you send the exact program that produced the error in the screenshot? Sam On Tue, Nov 18, 2014 at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
In terms of bugs, it’s probably related to this problem with call-with-values and poly-dots: #lang typed/racket (: f : (All (a ...) [(- (values Any ... a)) - Void])) (define (f g) (call-with-values g void)) ;= . . ../../Applications/Racket v6.1.1/share/pkgs/typed-racket-lib/typed-racket/typecheck/tc-app/tc-app-values.rkt:22:4: match: no matching clause for (tc-results '() (cons Any 'a)) On Nov 18, 2014, at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev _ Racket Developers list: http://lists.racket-lang.org/dev
Re: [racket-dev] parse errors in types, poly-dots cause me headaches
Yes, fix (for the internal error) coming soon. Sam On Tue, Nov 18, 2014 at 5:24 PM, Alexander D. Knauth alexan...@knauth.org wrote: In terms of bugs, it’s probably related to this problem with call-with-values and poly-dots: #lang typed/racket (: f : (All (a ...) [(- (values Any ... a)) - Void])) (define (f g) (call-with-values g void)) ;= . . ../../Applications/Racket v6.1.1/share/pkgs/typed-racket-lib/typed-racket/typecheck/tc-app/tc-app-values.rkt:22:4: match: no matching clause for (tc-results '() (cons Any 'a)) On Nov 18, 2014, at 11:54 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: On Nov 18, 2014, at 11:34 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote: On Tue, Nov 18, 2014 at 10:45 AM, Matthias Felleisen matth...@ccs.neu.edu wrote: It's quite possible that this is Eli's bug again, but boy this causes headaches: Type Checker: parse error in type; type variable must be used with ... variable: Y in: Y And it points precisely to where Y is followed by ... The problem here is that you're using -* without using the syntax of -*. Fortunately, this program doesn't need -* at all. Unfortunately, I don't know how to make this function type check yet, but I'll keep playing with it. Are you blaming the victim here? Please run what I send out and experience how the type checker barfs on you. This is a bug report. _ Racket Developers list: http://lists.racket-lang.org/dev _ Racket Developers list: http://lists.racket-lang.org/dev
