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32 commits

Author SHA1 Message Date
Leonardo de Moura
51aee83b70 refactor(kernel/metavar_env): use the same approach used in the class environment in the class metavar_env 
This modification was motivated by a bug exposed by tst17 at tests/kernel/type_checker.
metavar_env is now a smart point to metavar_env_cell.
ro_metavar_env is a read-only smart pointer. It is useful to make sure we are using proof_state correctly.

example showing that the approach for caching metavar_env is broken in the type_checker

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-13 18:59:15 -08:00
Leonardo de Moura
1852c86948 feat(kernel): improve instantiate and lift_free_vars (use metavar_env to minimize the number of lift and inst local_entries needed) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-12 16:48:33 -08:00
Leonardo de Moura
98f5ce0512 fix(kernel/context): unused var warning in release mode 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-11 21:24:05 -08:00
Leonardo de Moura
0e2b7973cf feat(kernel/free_vars): improve has_free_vars function, it produces better results for expressions containing metavariables 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-11 16:09:33 -08:00
Leonardo de Moura
af1b0d2e81 feat(library): add function free_var_range for computing the range [0, R) of free variables occurring in an expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-11 15:32:50 -08:00
Leonardo de Moura
3e1fd06903 refactor(kernel/expr): remove 'null' expression, and operator bool for expression 
After this commit, a value of type 'expr' cannot be a reference to nullptr.
This commit also fixes several bugs due to the use of 'null' expressions.

TODO: do the same for kernel objects, sexprs, etc.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-07 23:21:10 -08:00
Leonardo de Moura
872434e632 fix(kernel/has_free_vars): return false for null expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-06 16:01:57 -08:00
Leonardo de Moura
bcc8b67592 chore(*): consistent file name convention 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-03 12:40:52 -08:00
Leonardo de Moura
7f088b7635 feat(kernel): add (optional) field m_type to expr_const, this field is useful for implementing the tactic framework 
This field should not be visible in the external API.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-11-19 11:21:52 -08:00
Leonardo de Moura
31abc00db8 chore(*): add LCOV_EXCL_LINE to lean_unreachable statements 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-11-11 09:19:38 -08:00
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
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
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
5c3866cd71 Use fullpath in #include directives, add missing STL headers 2013-09-13 03:35:29 -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
cbff5ea856 Cleanup 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
99219f998b Rename files sets.h and maps.h to expr_sets.h and expr_maps.h 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Leonardo de Moura
4eeb72b0ee Fix performance problem in has_free_var. Add new test at src/tests/kernel/free_vars.cpp that exposes the problem. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-11 11:19:59 -07:00
Leonardo de Moura
5c6ee647a9 Fix bug in has_free_vars_fn. Add optimization to type_checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 22:05:04 -07:00
Leonardo de Moura
722e2b0ed4 Reformat code (make formating more consistent) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-07 08:17:33 -07:00
Leonardo de Moura
84f4a32c0e Change name convention for creating Lean expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-06 11:27:14 -07:00
Leonardo de Moura
30513398bb Add basic definitions and axioms 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
3f789ce2b7 Add let and heterogeneous equality. Add bool_type and bool_value. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 09:37:52 -07:00
Leonardo de Moura
0a679074f0 Add support for semantic attachments. Remove expr_numeral 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:15 -07:00
Leonardo de Moura
2972bdfec3 Rename abst_type to abst_domain 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:12 -07:00
Leonardo de Moura
e220d7c525 Add type checker. Fix normalization with non-empty context 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-01 21:40:36 -07:00
Leonardo de Moura
08b750c825 Remove Prop from kernel 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-29 19:49:34 -07:00
Leonardo de Moura
ed13132c12 Add has_free_var, lower_free_vars 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-26 12:27:55 -07:00
Leonardo de Moura
4b61639f4d Use consistent naming for functional objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
ed6d6483fe Rename abst_expr -> abst_body 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
54a02b4fc7 Simplify expr accessor names 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
2c3fc09e3c Add has_free_vars/closed function 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00