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29 commits

Author SHA1 Message Date
Leonardo de Moura
74dfdd02de feat(util): add primitives for checking the amount of available stack space 
Recursive functions that may go very deep should invoke the function check_stack. It throws an exception if the amount of stack space is limited.

The function check_system() is syntax sugar for
    check_interrupted();
    check_stack();

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-01 17:19:27 -08:00
Leonardo de Moura
4ebb3c572a feat(kernel/environment): make the environment throw an exception when weak-ref has expired 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-11-16 18:35:17 -08:00
Leonardo de Moura
80e23f98c7 feat(kernel/environment): add environment extension objects, the environment can be extended with frontend specific objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-11-06 19:22:30 -08:00
Leonardo de Moura
874f67c605 feat(normalizer): remove normalization rule t == t ==> true 
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
d843d432d3 refactor(kernel): move printer and formatter objects to the kernel 
The printer and formatter objects are not trusted code.
We moved them to the kernel to be able to provide them as an argument to the trace objects.
Another motivation is to eliminate the kernel_exception_formatter hack.
With the formatter in the kernel, we can implement the pretty printer for kernel exceptions as a virtual method.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-22 08:15:36 -07:00
Leonardo de Moura
0783805671 feat(kernel): add weight to kernel definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-15 14:50:08 -07:00
Leonardo de Moura
573ec5ccc2 Rename import_all. The idea is to use consistent name for library files. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 09:06:46 -07:00
Leonardo de Moura
070c87bef0 Rename arith library files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 08:55:09 -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
7a9d53d0d7 Refactor arith libraries 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:19:47 -07:00
Leonardo de Moura
e955c054ca Modify type checker. Now, it only accepts builtin values that have been declared in the environment. The idea is to be able to track which classes of builtin values have been used in a given environment. We want to be able to quantify the size of the trusted code base for a particular development. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-04 08:30:04 -07:00
Leonardo de Moura
b483d0dc45 Replace Int::sub and Real::sub with definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-02 16:31:30 -07:00
Leonardo de Moura
db88920f81 Rename normalize and type_check to normalizer and type_checker (using a consistent naming convention) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-02 08:43:38 -07:00
Leonardo de Moura
676ebcca3d Add parse_arrow 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-18 15:44:39 -07:00
Leonardo de Moura
111cdd4e62 Remove pretty printer from kernel. Add basic printing capability to exprlib module. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
519a290f32 Refactor kernel objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
c41b3dc4d8 Add kernel_exceptions. The idea is to avoid expression formatting in the kernel. It also allows different frontends to display the error messages is a different way. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 12:51:12 -07:00
Leonardo de Moura
013fa866fa Add iterator for traversing local objects (i.e., ignores objects defined in ancestor environments) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Soonho Kong
5a38480cf7 Remove "continue_on_violation(true);" from tests 2013-08-14 13:24:18 -07:00
Leonardo de Moura
11a9cac5d6 Refactor kernel objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-13 15:13:54 -07:00
Leonardo de Moura
9fbe99bf58 Rename define_uv -> add_uvar 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 14:21:13 -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
8aee11e538 Fix test failure when using clang++ and release mode 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
f6057e2b28 Add more environment tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
0c610e0a77 Fix bug in type checker 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
70de591934 Add definitions and facts 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 20:52:14 -07:00
Leonardo de Moura
4b5d60f2b2 Add get_uvar method 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 17:47:54 -07:00
Leonardo de Moura
c97db1f0cf Add children environments 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 16:07:37 -07:00