GitLab

------------------------------------
	Major increment for Template Haskell
	------------------------------------

1.  New abstract data type "Name" which appears where String used to be.
    E.g. 	data Exp = VarE Name | ...

2.  New syntax 'x and ''T, for quoting Names.  It's rather like [| x |]
    and [t| T |] respectively, except that

	a) it's non-monadic:  'x :: Name
	b) you get a Name not an Exp or Type

3.  reify is an ordinary function
	reify :: Name -> Q Info
    New data type Info which tells what TH knows about Name

4.  Local variables work properly.  So this works now (crashed before):
	f x = $( [| x |] )

5.  THSyntax is split up into three modules:

  Language.Haskell.TH		TH "clients" import this

  Language.Haskell.TH.THSyntax	data type declarations and internal stuff

  Language.Haskell.TH.THLib	Support library code (all re-exported
				by TH), including smart constructors and
				pretty printer

6.  Error reporting and recovery are in (not yet well tested)

	report :: Bool {- True <=> fatal -} -> String -> Q ()
	recover :: Q a -> Q a -> Q a

7.  Can find current module

	currentModule :: Q String


Much other cleaning up, needless to say.

wibble

Hopefully make these tests produce deterministic output.

Two more TH tests, thanks to Sean

Add a TH test

These tests now only need -fth, apart from a couple which use unboxed
literals.

Ignore *.comp.stderr and *.run.stderr, not *.stderr.
Add *.run.stdout to ignored files.

Commit missing .stderr file.

Introduce a ListP for consistency with ListE. Splicing in something with
a list pattern now works too.

Added various list tests.

Update tests for renamings.

The Great Renaming. I hope I've kept everything in sync - and all the tests
pass. Now datatypes follow the

data Foo = <a kind of Foo>Foo
         | <another kind of Foo>Foo

convention and the smart constructors can be uniformly created by
lowercasing the first letter of the constructor.

Added support for newtypes to TH and altered a test for them.

Added tests for unboxed literals.

Update testsuite in line with recent TH changes.

Added a couple of cases to TH_repE1 and added a new TH_repE2 that also
splices things back in and checks they can be printed correctly.

Correct comment

Correctly convert expressions from TH datastructures to the internel Hs*
datastructures containing right infix operators left-parenthesised.

Suppress linking messages in TH_spliceDecl1

wibble

Renaming function for the reify/splice test needs to be in a separate module

TH:
- We are forcing importing THSyntax.Q at every top splice now; this suffices
  to get simple splices that do not involve reifyDecl or declaration
  quasi-quotes to work.  NB: This worked already when the construction of the
  Dec term and the splice were in separated modules, but not when they are in
  the same (see the regression test "TH_spliceDecl1.hs").
- The tests "TH_spliceDecl2.hs" and "TH_spliceDecl3.hs" use toplevel splices
  together with quasi-quoted and reifyDecl.  These currently still fail, as
  importing of some of the required type constructors from THSyntax isn't
  forced.

TH: Revised type variable handling in toplevel decls (became necessary due to
recent addition of foralls in type representations).

Seems (in DsMeta) as if reifyDecl should do class delcarations, too, but it
currently dies when applied to a class name.

More tests for reifyDecl

** reifyDecl currently barfs on "type" and "newtype" decls **

Started on regression tests for Template Haskell