Estimated hours taken: 8
Fix a bug in the module import mechanism -- use_module should
not be transitive. This change is needed for smart recompilation
to avoid needing to check whether the removal of a transitive
import could cause compilation errors -- it never should.
Also fix some bugs in the handling of type class declarations.
compiler/prog_data.m:
Add a `transitively_imported' pseudo-declaration, which
is placed before the items from `.int2' files and `.opt'
files.
Fix the representation of type class bodies.
`:- typeclass foo where [].' declares a typeclass with no
methods. `:- typeclass foo.' declares an abstract typeclass.
The old representation made no distinction between these cases.
compiler/hlds_data.m:
compiler/prog_data.m:
compiler/module_qual.m:
Move the declaration of type type_id from hlds_data.m to prog_data.m.
This avoids a duplicate declaration in module_qual.m.
compiler/modules.m:
Add a `transitively_imported' pseudo-declaration before the
items from `.int2' files.
Remove the bodies of typeclass declarations placed in `.int2'
files -- the methods should not be available unless the module
is explicitly imported.
compiler/module_qual.m:
Items after the `transitively_imported' pseudo-declaration
should not be considered when module qualifying locally
declared items.
compiler/equiv_type.m:
compiler/mercury_to_mercury.m:
compiler/prog_io_typeclass.m:
Handle the change to the representation of typeclass bodies.
compiler/prog_io_typeclass.m:
Check that the arguments of a typeclass declaration
are distinct variables.
compiler/make_hlds.m:
Handle abstract typeclass declarations.
compiler/check_typeclass.m:
Check that all typeclasses have a definition somewhere.
compiler/intermod.m:
Write abstract_exported typeclasses to the `.opt' file.
compiler/add_trail_ops.m:
compiler/context.m:
compiler/llds.m:
compiler/vn_type.m:
Add missing imports.
compiler/magic_util.m:
compiler/ml_type_gen.m:
Remove unnecessary imports.
NEWS:
Note that this change may break existing programs.
compiler/notes/todo.html:
Remove the item relating to this change.
tests/invalid/transitive_import.{m,err_exp}:
Add some tests for uses of transitively imported items.
tests/invalid/transitive_import_class.m:
tests/invalid/transitive_import_class2.m:
tests/invalid/transitive_import_class3.m:
tests/invalid/transitive_import_class.err_exp:
Add a test for use of transitively imported class methods.
tests/invalid/invalid_typeclass.{m,err_exp}:
Add some tests for invalid typeclass declarations.
tests/invalid/Mmakefile:
Add the new tests.
Estimated hours taken: 0.5
Deprecate the old style of lambda expressions.
NEWS:
doc/reference_manual.texi:
Document that the old-style lambda expressions are now deprecated.
compiler/notes/todo.html:
Mention that we should warn about the use of old-style lambda
expressions.
Estimated hours taken: 0.1
compiler/notes/todo.html
Updated mention of existential types and added an item about better
support in the standard library for higher order programming.
Estimated hours taken: 0.25
compiler/notes/todo.html:
Delete some things that have been done, and add a couple of new
things to the todo list and wish list.
Estimated hours taken: 0.2
todo.html:
Removed "being done by jammb", since he isn't working on Mercury
anymore. Added a note that petdr is supposed to be working on
data type specialization. Clarified a point about attribute grammars.
Estimated hours taken: 1
compiler/notes/todo.html:
Update the todo list to reflect things that have been done.
Move some items from the TODO section to the WISHLIST section.
Change the indentation slightly to make it easier to read
the ASCII source.
Estimated hours taken: 4
Translated plain text docs to HTML. This obviously creates
a dual update problem. We should solve this by putting
the plain text docs in the attic and retaining the HTML.
Also added the HTML files to the Mmakefile so they are installed
on the web pages.
The other documents in compiler/notes will be HTMLized soon.
compiler/notes/
Mmakefiles
ALLOCATION.html
AUTHORS.html
CODING_STANDARDS.html
COMPILER_DESIGN.html
GC_AND_C_CODE.html
GLOSSARY.html
MODULE_SYSTEM.html
RELEASE_CHECKLIST.html
REVIEWS.html
TODO.html
