Leonardo de Moura
59914a36f3
refactor(metavar): reorganize and simplify metavariables
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- Use hierarchical names instead of unsigned integers to identify metavariables.
- Associate type with metavariable.
- Replace metavar_env with substitution.
- Rename meta_ctx --> local_ctx
- Rename meta_entry --> local_entry
- Disable old elaborator
- Rename unification_problems to unification_constraints
- Add metavar_generator
- Fix metavar unit tests
- Modify type checker to use metavar_generator
- Fix placeholder module
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-22 08:15:36 -07:00
Leonardo de Moura
c847d27763
Improve higher order unification
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-21 00:41:49 -07:00
Leonardo de Moura
2f29ff70d7
Implement higher-order unification
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-18 20:46:00 -07:00
Leonardo de Moura
3df6149daa
Add support for metavariables in the type checker.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-17 11:09:59 -07:00
Leonardo de Moura
30b19c314a
Add basic support for metavariables at is_convertible. Swap is_convertible arguments to make it more intuitive.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-17 07:15:47 -07:00
Leonardo de Moura
99a163f11d
Simplify metavariable context. Now, we have only 'lift' and 'inst' instead of 'subst', 'lift' and 'lower'
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-16 19:32:28 -07:00
Leonardo de Moura
cad562a448
Add support for metavariables in the normalizer.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-16 19:32:28 -07:00
Leonardo de Moura
2800292947
Add timestamp to metavar_env
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-15 19:50:48 -07:00
Leonardo de Moura
5a4bc331d2
Make unification_problems a virtual class. Associate a 'standard' context with each metavariable in metavar_env
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-15 19:38:36 -07:00
Leonardo de Moura
63e102055e
Move metavariables to the kernel. This is the first step for implementing the new elaborator.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-15 12:09:01 -07:00
