Julien Fischer 192a58021b Add optional support for generating a pure interface to mutables. ...

Estimated hours taken: 8
Branches: main

Add optional support for generating a pure interface to mutables.  This is
done by adding a new mutable attribute, `attach_to_io_state'.  If this
attribute is specified in the mutable declaration then in addition to the
usual non-pure access predicates, the compiler will also add a pair of access
predicates that take the IO state.

compiler/prog_data.m:
	Add the `attach_to_io_state' mutable attribute.

	Add the necessary access predicates for the mutable_var_attributes
	structure.

compiler/prog_io.m:
	Parse the `attach_to_io_state' attribute.

compiler/prog_mutable.m:
	Shift some of the code for constructing items related to mutables to
	this module from make_hlds_passes.  This reduces unnecessary clutter in
	the latter.

	Remove the XXX comment about needing to mangle the names of the
	globals - we now do that.

compiler/make_hlds_passes.m:
	If a mutable has the `attach_to_io_state' attribute specified then
	create pure access predicates that take the IO state in addition
	to the non-pure ones.

compiler/modules.m:
	If we are generating the pure access predicates then output the
	declarations for these predicates in private interfaces.

compiler/type_util.m:
	Replace the use of ':' as a module qualifier in some comments.

doc/reference_manual.texi:
	Document the `attach_to_io_state' mutable attribute.

vim/syntax/mercury.vim:
	Highlight various mutable attributes appropriately.

tests/hard_coded/Mmakefile:
tests/hard_coded/pure_mutable.m:
tests/hard_coded/pure_mutable.exp:
	Test mutables with pure access predicates.

tests/hard_coded/ppc_bug.m:
	Unrelated change: update the comments in this test case so
	they describe what the cause of the bug and the fix were.

2005-10-06 08:26:12 +00:00

..

mercury.vim

Add optional support for generating a pure interface to mutables.

2005-10-06 08:26:12 +00:00