#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 | Differential Revisions: -------------------------------------+------------------------------------- Old description:

{{{#!hs instance Data.TH.Object.Object InputDropboxFiles String Language.JavaScript.Interpret.Primitive where toObject x@(InputDropboxFiles {}) = fromList (Data.Maybe.catMaybes [Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "root" (inputDropboxFilesRoot x)), Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "path" (inputDropboxFilesPath x)), fmap (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "rev") (inputDropboxFilesRev x), Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "access_token" (inputDropboxFilesAccess_token x))]) }}}

{{{#!hs (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr)) "root" (inputDropboxFilesRoot x) }}}

should be

{{{#!hs ((\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr))) "root" (inputDropboxFilesRoot x) }}}

ie. the lambda needs parentheses around it.

New description: {{{#!hs instance Data.TH.Object.Object InputDropboxFiles String Language.JavaScript.Interpret.Primitive where toObject x@(InputDropboxFiles {}) = fromList (Data.Maybe.catMaybes [Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "root" (inputDropboxFilesRoot x)), Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "path" (inputDropboxFilesPath x)), fmap (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "rev") (inputDropboxFilesRev x), Just (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "access_token" (inputDropboxFilesAccess_token x))]) }}} {{{#!hs (\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr) "root" (inputDropboxFilesRoot x)) }}} should be {{{#!hs ((\ k_axsq v_axsr -> (k_axsq, Data.TH.Convert.convert v_axsr)) "root" (inputDropboxFilesRoot x)) }}} ie. the lambda needs parentheses around it. -- Comment (by rwbarton): Edited to what I think you meant. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by Fabian): * Attachment "Test10702.hs" added. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Template Haskell | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * cc: GregWeber (added) Comment: Fabian: if you change your test to not depend on any external libraries, that would be great. The problem is we can't put it in the testsuite ''as is''. cc GregWeber, who implemented this feature recently. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Template Haskell | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Fabian): Replying to [comment:5 GregWeber]:

This probably indicates a general problem with TH pretty-printing. Is the problem the same with -ddump-splices ?

Yes, I have updated the test with output from both -dth-dec-file and -ddump-splices -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Template Haskell | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Fabian): Replying to [comment:4 thomie]:

Fabian: if you change your test to not depend on any external libraries, that would be great. The problem is we can't put it in the testsuite ''as is''.

cc GregWeber, who implemented this feature recently.

Done -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

#10703: -fth-dec-file can't handle lambdas -------------------------------------+------------------------------------- Reporter: Fabian | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Template Haskell | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: #10701 #10603 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * related: #10701 => #10701 #10603 Comment: This is being worked on in #10603. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10703#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler