Leonardo de Moura
2c6d4d2225
fix(kernel/normalizer): do not apply substitutions in the normalizer
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It is incorrect to apply substitutions during normalization.
The problem is that we do not have support for tracking justifications in the normalizer. So, substitutions were being silently applied during normalization. Thus, the correctness of the conflict resolution in the elaboration was being affected.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-29 02:14:48 -07:00
Leonardo de Moura
92f5a31976
feat(kernel/expr): add new mk_app template for creating applications using a collection
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-27 08:53:58 -07:00
Leonardo de Moura
874f67c605
feat(normalizer): remove normalization rule t == t ==> true
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This normalization rule is not really a computational rule.
It is essentially encoding the reflexivity axiom as computation.
It can also be abaused. For example, with this rule,
the following definition is valid:
Theorem Th : a = a := Refl b
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-22 14:02:48 -07:00
Leonardo de Moura
7cf83800c0
refactor(metavar): implement metavar_env, and use unification_constraint and trace objects in the type_checker, light_checker
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-22 08:15:36 -07:00
Leonardo de Moura
5b1b03bafd
refactor(is_convertible): move from normalizer to type_checker class
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-10-22 08:15:36 -07:00
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
6477708d78
refactor(debug): improve lean_unreachable(), now we can avoid 'fake' return statements
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-25 21:27:20 -07:00
Leonardo de Moura
651c5d6751
Fix warnings and bugs related to unused variables.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-19 22:41:07 -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
21c7a45f67
Relax definition of identity_stack. Fix printer for metavariable contexts.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-17 02:09:45 -07:00
Leonardo de Moura
d3bce584f4
Add support for new metavariable representation in the normalizer.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-17 01:57:21 -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
1be2a30c8c
Fix bug in normalizer. We must create a scope whenever we extend the value stack.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-16 19:32:28 -07:00
Leonardo de Moura
f79f046294
Add partial support for metavariables in the normalizer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-15 21:23:50 -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
Leonardo de Moura
d54834279e
Use consistent coding style for if-then-else
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-13 12:57:40 -07:00
Soonho Kong
5c3866cd71
Use fullpath in #include directives, add missing STL headers
2013-09-13 03:35:29 -07:00
Leonardo de Moura
26097475fd
Use fullpath in #include directives.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-12 20:04:10 -07:00
Leonardo de Moura
33c4b44b2b
Encapsulate context implementation. The current implementantion based on lists may be a performance problem in the future, and we should be able to change it without affecting the whole code base.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-07 11:15:11 -07:00
Leonardo de Moura
b92bbeb83b
Add casting propagation and normalization
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-06 20:45:26 -07:00
Leonardo de Moura
db88920f81
Rename normalize and type_check to normalizer and type_checker (using a consistent naming convention)
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-02 08:43:38 -07:00