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226 commits

Author SHA1 Message Date
Leonardo de Moura
aa5be3262f fix(type_checker): fix inconsistent cache bug in type_checker, add tests that expose the problem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-01 19:23:55 -07:00
Soonho Kong
e3b762e909 feat(kernel): add static_assert to expr,expr_eq,replace 2013-10-01 16:47:36 -07:00
Soonho Kong
a832173f5f feat(kernel/expr): add expr::operator() which takes 8 args 2013-10-01 00:19:30 -07:00
Leonardo de Moura
e5d312dc18 fix(kernel): the hash code of expressions was not being used to compare them 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-26 08:41:20 -07:00
Leonardo de Moura
98b4e09063 refactor(kernel): simplify expr_eq 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-25 22:09:08 -07:00
Leonardo de Moura
6477708d78 refactor(debug): improve lean_unreachable(), now we can avoid 'fake' return statements 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-25 21:27:20 -07:00
Leonardo de Moura
9f0dab1add fix(kernel): add declarations for operator<<(std::ostream&, expr const&) and operator<<(std::ostream&, context const&) in the kernel 
The actual implementation of these two operators is outside of the
kernel. They are implemented in the file 'library/printer.cpp'.
We declare them in the kernel to prevent the following problem.
Suppose there is a file 'foo.cpp' that does not include
'library/printer.h', but contains

    expr a;
    ...
    std::cout << a << "\n";
    ...

The compiler does not generate an error message. It silently uses the
operator bool() to coerce the expression into a Boolean. This produces
counter-intuitive behavior, and may confuse developers.
 2013-09-25 17:45:54 -07:00
Leonardo de Moura
ba0528c298 Implement total order on expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-24 12:16:32 -07:00
Leonardo de Moura
46d6c41835 Fix bug in the type checker (when type checking terms with meta-variables). 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-22 19:12:19 -07:00
Leonardo de Moura
1647e44510 Fix memory corruption bug 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-22 18:53:58 -07:00
Leonardo de Moura
16a6a54df1 Fix abuse of operator-> overload 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-22 16:41:51 -07:00
Leonardo de Moura
c847d27763 Improve higher order unification 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-21 00:41:49 -07:00
Leonardo de Moura
651c5d6751 Fix warnings and bugs related to unused variables. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-19 22:41:07 -07:00
Soonho Kong
ab6ca82e6f Update to suppress unused-parameter warnings 2013-09-19 22:40:34 -07:00
Leonardo de Moura
80a1b96925 Remove duplicate solutions in the higher order matching module. Simplify solutions when higher-order matching is used, and we don't have a residue. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-19 18:59:28 -07:00
Leonardo de Moura
2f29ff70d7 Implement higher-order unification 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-18 20:46:00 -07:00
Leonardo de Moura
ad901ce087 Use consistent naming conventions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 14:43:07 -07:00
Leonardo de Moura
3df6149daa Add support for metavariables in the type checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 11:09:59 -07:00
Leonardo de Moura
9f9dcf9a29 Fix bug in the creation of children environments. Remove unnecessary function. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 07:37:33 -07:00
Leonardo de Moura
30b19c314a Add basic support for metavariables at is_convertible. Swap is_convertible arguments to make it more intuitive. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 07:15:47 -07:00
Leonardo de Moura
a26c7d47f2 Add simplification to add_lift 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 03:14:02 -07:00
Leonardo de Moura
99e8d2feae Add simplification rule to add_inst 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 02:57:28 -07:00
Leonardo de Moura
21c7a45f67 Relax definition of identity_stack. Fix printer for metavariable contexts. 
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. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 01:57:21 -07:00
Leonardo de Moura
da09e7217a Cleanup meta_entry code 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-16 19:32:28 -07:00
Leonardo de Moura
99a163f11d Simplify metavariable context. Now, we have only 'lift' and 'inst' instead of 'subst', 'lift' and 'lower' 
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. 
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. 
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 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 21:23:50 -07:00
Leonardo de Moura
2800292947 Add timestamp to metavar_env 
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 
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. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 12:09:01 -07:00
Soonho Kong
bc60b47295 Apply coding style 2013-09-13 18:48:09 -07:00
Leonardo de Moura
bcc3827a99 Modify Doxygen file to extract all elements even the undocumented ones. Disable warnings for undocumented entities. Add extra comments. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 13:46:22 -07:00
Leonardo de Moura
d54834279e Use consistent coding style for if-then-else 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 12:57:40 -07:00
Leonardo de Moura
8c735f1daa Use consistent coding style for spaces after ',' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 12:49:03 -07:00
Leonardo de Moura
2c68117adf Tag TODOs 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 12:25:21 -07:00
Leonardo de Moura
0c09e4524a Use consistent names for import functions, and library files. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 08:58:34 -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. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-12 20:04:10 -07:00
Leonardo de Moura
572c7ced2a Add #include<atomic> to expr.h. We need it when #define LEAN_THREAD_UNSAFE_REF_COUNT is used 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-11 19:48:55 -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. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-07 11:15:11 -07:00
Leonardo de Moura
bab11b57ad Move Symm and Trans back to basic_thms.cpp 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:49:35 -07:00
Leonardo de Moura
c674bb3790 Add castlib as an independent library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:40:47 -07:00
Leonardo de Moura
7a9d53d0d7 Refactor arith libraries 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:19:47 -07:00
Leonardo de Moura
b92bbeb83b Add casting propagation and normalization 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 20:45:26 -07:00
Leonardo de Moura
c0c2f52087 Add Cast, DomInj and RanInj. Improve operator << for lean_frontend objects. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 18:32:15 -07:00
Leonardo de Moura
8840b37258 Fix type checker and elaborator for let expressions. Fix get_coercions (we need to pass the context). Fix pretty printer for def_type_mismatch_exception. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 11:02:00 -07:00
Leonardo de Moura
2459c4ae7c Add (optional) type to let declarations 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 10:06:26 -07:00
Leonardo de Moura
87d3961158 Improve elaborator error messages 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-04 16:36:58 -07:00