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145 commits

Author SHA1 Message Date
Leonardo de Moura
b1b49e86e7 test(elaborator): add simple test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-22 08:15:36 -07:00
Leonardo de Moura
7cf83800c0 refactor(metavar): implement metavar_env, and use unification_constraint and trace objects in the type_checker, light_checker 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-22 08:15:36 -07:00
Leonardo de Moura
85bfa45e6a refactor(kernel_exception): delete kernel_exception_formatter, and implement kernel_exception pretty printer as a virtual method 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-22 08:15:36 -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
ddb90d3038 feat(kernel): add unification_constraint and trace objects to the kernel 
Trace objects will be used to justify steps performed by engines such as the elaborator. We use them to implement non-chronological backtracking in the elaborator. They are also use to justify to the user why something did not work.

The unification constraints are in the kernel because the type checker may create them when type checking a term containing metavariables.

Remark: a minimalistic kernel does not need to include metavariables, unification constraints, nor trace objects. We include these objects in our kernel to minimize code duplication.

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 
- 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
5bd6ba37d0 fix(light_checker): fix inconsistent cache bug in light_checker, add tests that expose the problem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-01 19:25:58 -07:00
Leonardo de Moura
2089d12bd0 fix(replace_using_ctx): fix inconsistent cache bug in replace_using_ctx, and add tests that expose the problem 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-10-01 18:52:18 -07:00
Soonho Kong
c50bc13be0 test(library/rewriter): add more tests 2013-10-01 00:30:38 -07:00
Soonho Kong
54f4c4d9bc test(library/rewriter/fo_match): clean up enable_trace 2013-09-29 18:36:01 -07:00
Soonho Kong
6a0d211d54 test(fo_match): add more unittests 
[skip ci]
 2013-09-27 01:53:42 -07:00
Leonardo de Moura
5cce74d116 test(library): add tests for improving coverage 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-26 19:43:10 -07:00
Leonardo de Moura
db4e5ab0ad feat(expr_lt): improve expr_lt performance by using hash codes, and add more tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-25 21:59:58 -07:00
Leonardo de Moura
e16f45854b refactor(deep_copy): simplify deep_copy implementation, and move unit test to separate file 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-25 20:25:24 -07:00
Soonho Kong
1d8b7dc193 Update 'orelse' and 'then' rewriter to take a list of rewriters 2013-09-25 16:46:39 -07:00
Soonho Kong
a50f5f92b8 Rename 'rewrite' to 'Rewriter', change type of rewriter::operator() 2013-09-25 15:38:16 -07:00
Soonho Kong
57e9e2c658 Re-implement rewrite module using rewrite_cell 2013-09-24 19:11:09 -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
Soonho Kong
71fb150333 Fix type of rewrite() to take an env. Add skeletons for other rewriters 2013-09-24 01:20:45 -07:00
Soonho Kong
81c9de229b Add then and orelse rewrite combinators and tests 2013-09-24 01:19:03 -07:00
Soonho Kong
9ba6068858 Update fo_match 2013-09-24 01:19:03 -07:00
Soonho Kong
f89ededddc Add rewrite and first-order pattern matching skeletal 2013-09-24 01:19:03 -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
7ac94ee976 Add max_sharing tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-20 22:01:40 -07:00
Leonardo de Moura
d34cfe3f8a Add simple formatter tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-20 21:46:32 -07:00
Leonardo de Moura
42482622f6 Add imitation for lambdas and Pis 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-19 16:28:23 -07:00
Leonardo de Moura
d7cc5d2404 Fix bug in ho_unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-19 16:28:23 -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
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
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
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
1cee392483 Add light_checker: module for extracting the type of (fully elaborated) expressions. It is much faster than type_checker, which infers the type but also check whether the input is type correct or not. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-07 22:33:18 -07:00
Leonardo de Moura
e8c09015ad Move elaborator to lean default frontend. It is getting too specific 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-01 18:22:24 -07:00
Leonardo de Moura
61a8fd16db Remove unnecessary files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-01 14:57:08 -07:00
Leonardo de Moura
9d9f9797e4 Improve elaborator interface. Now, the metavariables are created inside the elaborator. The elaborator-user only needs to create placeholders. Motivaton: the placeholders are meaningful independently of the elaborator. On the other hand, the metavariables depend on the elaborator state. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-31 17:11:06 -07:00
Leonardo de Moura
2aac94f2e6 Refactor elaborator using new metavar library. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-30 01:25:06 -07:00
Leonardo de Moura
1f6943e3a4 Add head_reduce_mmv (reduction function modulo metavariables) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-29 14:15:17 -07:00
Leonardo de Moura
2cf9ca9345 Add metavariable utilities. They will be used to refactor the elaborator. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-29 13:49:22 -07:00
Leonardo de Moura
cdab19b88c Simplify the elaborator 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-27 20:39:38 -07:00
Leonardo de Moura
0a34959716 Fix a bug. Add another test. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-25 20:43:50 -07:00
Leonardo de Moura
3721577700 Fix bugs in elaborator. Cleanup tests. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-25 18:46:33 -07:00
Leonardo de Moura
02b72acc2f Add implicit arguments unit tests 2013-08-24 18:23:39 -07:00
Leonardo de Moura
f08c06d582 Add head_beta tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-23 09:42:49 -07:00