Estimated hours taken: 1
Update the test cases to reflect recent changes to io__write.
test/hard_coded/construct.m:
test/hard_coded/expand.m:
Use `io__print' rather than `io__write' for univs,
so that it doesn't output the `univ(... : type)' wrappers.
tests/hard_coded/deep_copy_bug.exp:
tests/hard_coded/construct.exp:
tests/hard_coded/expand.exp:
tests/hard_coded/write.exp:
tests/hard_coded/write_reg1.exp:
Change the expected output to use proper list notation
rather than prefix `.', and to properly quote strings and atoms,
but also to improperly quote equivalences types.
tests/hard_coded/Mmake:
Add a comment explaining that deep_copy_bug.exp, write.exp, and
write_reg1.exp are wrong, due to a bug in io__write.
Estimated hours taken: 50
Add the type `type_info', which represents the type of a variable.
Implement functions and predicates to deal with type_infos, including
finding what functors they have, getting the arity and type_infos of their
the arguments of a functor, and constructing types.
compiler/base_type_layout.m:
Document the constant used to represent the type 'void'.
Make sure enumeration vectors are output in the same order for
base_type_layouts and base_type_functors, so that we can
refer to functors by the same functor number.
library/mercury_builtin.m:
Add base_type_* for 'void'. 'void' is the type_info
used for unbound type_variables.
library/std_util.m:
Add
function type_of/1
function num_functors/1
predicate get_functor/5
function construct/3
Use MR_DECLARE_STRUCT to declare base_type_* structs
for handwritten code, so less code needs to be changed if this
changes.
Rename `mercury_expand_info' as `Mercury_Expand_Info' (C coding
standard for typedefs).
runtime/type_info.h:
Add a bunch of macros to deal with the various type information
data structures. Eventually all the code that uses these data
strcutures should use these macros.
tests/hard_coded/Mmake:
Add `construct' to the test suite.
hard_coded/construct.m:
hard_coded/construct.exp:
Test of type_of, num_functors, get_functor and construct.
