Estimated hours taken: 100
Branches: main
Make definitions of abstract types available when generating
code for importing modules. This is necessary for the .NET
back-end, and for `:- pragma export' on the C back-end.
compiler/prog_data.m:
compiler/modules.m:
compiler/make.dependencies.m:
compiler/recompilation.version.m:
Handle implementation sections in interface files.
There is a new pseudo-declaration `abstract_imported'
which is applied to items from the implementation
section of an interface file. `abstract_imported'
items may not be used in the error checking passes
for the curent module.
compiler/equiv_type_hlds.m:
compiler/notes/compiler_design.html:
New file.
Go over the HLDS expanding all types fully after
semantic checking has been run.
compiler/mercury_compile.m:
Add the new pass.
Don't write the `.opt' file if there are any errors.
compiler/instmap.m:
Add a predicate instmap_delta_map_foldl to apply
a procedure to all insts in an instmap.
compiler/equiv_type.m:
Export predicates for use by equiv_type_hlds.m
Reorder arguments so state variables and higher-order
programming can be used.
compiler/prog_data.m:
compiler/prog_io_pragma.m:
compiler/make_hlds.m:
compiler/mercury_to_mercury.m:
Handle `:- pragma foreign_type' as a form of type
declaration rather than a pragma.
compiler/hlds_data.m:
compiler/*.m:
Add a field to the type_info_cell_constructor cons_id
to identify the type_ctor, which is needed by
equiv_type_hlds.m.
compiler/module_qual.m:
Donn't allow items from the implementation section of
interface files to match items in the current module.
compiler/*.m:
tests/*/*.m:
Add missing imports which only became apparent with
the bug fixes above.
Remove unnecessary imports which only became apparent with
the bug fixes above.
tests/hard_coded/Mmakefile:
tests/hard_coded/export_test2.{m,exp}:
Test case.
tests/invalid/Mmakefile:
tests/invalid/missing_interface_import2.{m,err_exp}:
Test case.
Estimated hours taken: 120
Branches: main
Allow types to be declared as "solver" types using the syntax
`:- solver type ...'.
For a non-solver type t (i.e. any type declared without using the
`solver' keyword), the inst `any' should be considered to be equivalent
to a bound inst i where i contains all the functors of the type t and
each argument has inst `any'. For solver types, `any' retains its
previous meaning.
This is required to allow us to represent HAL's `old' inst using `any'.
In HAL, `old' is like `any' if the type is an instance of a particular
type class (`solver/1'). However, for types that are not instances of
`solver/1', `old' needs to be treated as though it is `bound'.
library/ops.m:
Add `solver' as a unary prefix operator.
compiler/prog_data.m:
Add a field to the type `type_defn' to record whether or not the
type is a solver type.
compiler/hlds_data.m:
Add an equivalent field to the type `hlds_type_body'.
compiler/prog_io.m:
compiler/make_hlds.m:
compiler/modules.m:
compiler/mercury_to_mercury.m:
compiler/hlds_out.m:
Handle the new ":- solver type ..." syntax.
compiler/det_report.m:
compiler/equiv_type.m:
compiler/foreign.m:
compiler/hlds_code_util.m:
compiler/hlds_out.m:
compiler/intermod.m:
compiler/magic_util.m:
compiler/ml_code_gen.m:
compiler/ml_type_gen.m:
compiler/ml_unify_gen.m:
compiler/mlds.m:
compiler/module_qual.m:
compiler/post_typecheck.m:
compiler/pragma_c_gen.m:
compiler/recompilation.check.m:
compiler/recompilation.usage.m:
compiler/recompilation.version.m:
compiler/special_pred.m:
compiler/stack_opt.m:
compiler/switch_util.m:
compiler/table_gen.m:
compiler/term_util.m:
compiler/type_ctor_info.m:
compiler/unify_gen.m:
compiler/unify_proc.m:
Handle the changes to `type_defn' and `hlds_type_body'.
compiler/type_util.m:
Add predicates `type_util__is_solver_type' and
`type_body_is_solver_type'.
compiler/inst_match.m:
compiler/inst_util.m:
In inst_matches_{initial,final,binding} and
abstractly_unify_inst_functor, when we are comparing `any' insts, check
whether or not the type is a solver type and treat it appropriately.
compiler/instmap.m:
compiler/modecheck_unify.m:
Pass type information to abstractly_unify_inst_functor.
compiler/mode_util.m:
Add a predicate `constructors_to_bound_any_insts' which is the same as
`constructors_to_bound_insts' except that it makes the arguments of the
bound inst `any' instead of `ground'.
tests/invalid/any_mode.m:
tests/invalid/any_mode.err_exp:
tests/hard_coded/any_free_unify.m:
Modify these test cases to use a "solver" type instead of `int'.
tests/valid/any_matches_bound.m:
tests/valid/Mmakefile:
tests/invalid/Mmakefile:
tests/invalid/any_should_not_match_bound.m:
tests/invalid/any_should_not_match_bound.err_exp:
Add new test cases.
extras/trailed_update/var.m:
clpr/cfloat.m:
Modify to use the new `:- solver type' syntax.
Estimated hours taken: 4
Branches: main
Prepare to make type_info and typeclass_info foreign types by eliminating the
compiler's dependence on their function symbols. At the moment, the compiler
generates type_intos and typeclass_infos by using the function symbols of these
types as cons_ids. However, the function symbols have fake arities, which
demanded special treatment in many places. This change makes the compiler use
the cons_ids type_into_cell_constructor and typeclass_into_cell_constructor
instead, except in insts, which need to know the arity of the constructor.
compiler/hlds_data.m:
Add the two new cons_ids.
compiler/polymorphism.m:
Use the two new cons_ids instead of the function symbols of the
type_info and typeclass_info types, since those function symbols
will soon be deleted.
compiler/type_util.m:
Add a type and some predicates to control the representation of
type_info and typeclass_info cells in one place.
Since we no longer depend on the representations of the function
symbols of the type_info and typeclass_info types, do not special
case their representation.
compiler/hlds_code_util.m:
Implement the representation of the two new function symbols.
compiler/bytecode.m:
Add two new cons_ids to parallel the ones in hlds_data.m.
compiler/higher_order.m:
Look for the two new cons_ids, instead of the old ones.
Make the code more maintainable.
compiler/*.m:
Minor changes to conform to the changes above.
library/private_builtin.m:
Delete the statement that the compiler depends on the functors of the
type_info and type_ctor_info types.
bytecode/mb_bytecode.h:
Document that some bytecodes generated by the compiler are not yet
implemented by the bytecode interpreter.
Estimated hours taken: 0.2
Branches: main
compiler/hlds_data.m:
Delete the const_addr cons_id and the code_addr_constant tag value,
since they have not been needed for a long time. The HLDS hasn't
needed to handle raw code addresses since we stopped generating
type_ctor_infos dynamically, and made them static data structures.
The code address representations in the MLDS, LLDS and bytecode
backends are still needed in the implementation of closures.
compiler/bytecode.m:
Delete the code_addr_const (the equivalent of the code_addr_constant
tag value) in the bytecode representation, since it was used only
to implement code_addr cons_ids; closures use pred_consts instead.
compiler/*.m:
Delete the code that dealt with the deleted function symbols as inputs
(which in several cases threw exceptions anyway).
Estimated hours taken: 1
Branches: main
Various trivial minor cleanups.
compiler/hlds.m:
compiler/ll_backend.m:
Delete obsolete XXX comments that referred to problems which
have since been fixed.
compiler/ll_backend.m:
Fix an XXX: list the HLDS->HLDS passes in the order in which
they get invoked.
compiler/hlds_code_util.m:
Delete a type whose only purpose was to avoid a warning about
the interface of this module being empty, since the interface
is no longer empty.
compiler/modules.m:
s/ / /
compiler/post_typecheck.m:
Delete an unnecessary `:- import_module' declaration.
Estimated hours taken: 1
Branches: main
compiler/code_util.m:
compiler/goal_form.m:
compiler/hlds_code_util.m:
Move functionality that is not part of the LLDS backend from
ll_backend__code_util to hlds__goal_form and to hlds__hlds_code_util.
Turn some predicates into functions.
compiler/*.m:
Conform to the changes above.
Estimated hours taken: 2
Branches: main
compiler/*.m:
Import only one compiler module per line. Sort the blocks of imports.
This makes it easier to merge in changes.
In a couple of places, remove unnecessary imports.
Estimated hours taken: 0.5
Branches: main
The java and il backends don't have a typedef mechanism so all types
must have all the equivalence types in them expanded fully, thus the
type_ctor_info and special preds for equivalence types are not needed.
compiler/make_hlds.m:
Don't output the special predicates for types defined as
equivalence types on the il and java backends.
compiler/type_ctor_info.m:
Don't output the type_ctor_infos for types defined as equivalence
types on the il and java backends.
compiler/hlds_code_util.m:
Add the predicate are_equivalence_types_expanded.
The main aim of this change is to make the overall, high-level structure
of the compiler clearer, and to encourage better encapsulation of the
major components.
compiler/libs.m:
compiler/backend_libs.m:
compiler/parse_tree.m:
compiler/hlds.m:
compiler/check_hlds.m:
compiler/transform_hlds.m:
compiler/bytecode_backend.m:
compiler/aditi_backend.m:
compiler/ml_backend.m:
compiler/ll_backend.m:
compiler/top_level.m:
New files. One module for each of the major components of the
Mercury compiler. These modules contain (as separate sub-modules)
all the other modules in the Mercury compiler, except gcc.m and
mlds_to_gcc.m.
Mmakefile:
compiler/Mmakefile:
Handle the fact that the top-level module is now `top_level',
not `mercury_compile' (since `mercury_compile' is a sub-module
of `top_level').
compiler/Mmakefile:
Update settings of *FLAGS-<modulename> to use the appropriate
nested module names.
compiler/recompilation_check.m:
compiler/recompilation_version.m:
compiler/recompilation_usage.m:
compiler/recompilation.check.m:
compiler/recompilation.version.m:
compiler/recompilation.version.m:
Convert the `recompilation_*' modules into sub-modules of the
`recompilation' module.
compiler/*.m:
compiler/*.pp:
Module-qualify the module names in `:- module', `:- import_module',
and `:- use_module' declarations.
compiler/base_type_info.m:
compiler/base_type_layout.m:
Deleted these unused empty modules.
compiler/prog_data.m:
compiler/globals.m:
Move the `foreign_language' type from prog_data to globals.
compiler/mlds.m:
compiler/ml_util.m:
compiler/mlds_to_il.m:
Import `globals', for `foreign_language'.
Mmake.common.in:
trace/Mmakefile:
runtime/Mmakefile:
Rename the %.check.c targets as %.check_hdr.c,
to avoid conflicts with compiler/recompilation.check.c.
