Leonardo de Moura
aebff0b4d3
fix(library/type_inferer): bug in get_range method
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 14:55:07 -08:00
Leonardo de Moura
90dbdaec40
feat(kernel/expr): cache is_arrow result
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 13:59:45 -08:00
Leonardo de Moura
1faf42e2e1
chore(kernel/expr): remove unnecessary #if-#then-#else
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 13:36:41 -08:00
Leonardo de Moura
55d46b2f88
test(tests/lean): add new normalizer/elaborator test
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 06:43:25 -08:00
Leonardo de Moura
97145c0f88
fix(library/elaborator): bug in free variable normalization (lift was missing)
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 06:41:09 -08:00
Leonardo de Moura
7b0b363b32
fix(kernel/normalizer): metavariable reification
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 06:40:26 -08:00
Leonardo de Moura
9444c1f47f
test(tests/lean): add example that cannot be elaborated
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 04:19:53 -08:00
Leonardo de Moura
fddcdb8f40
fix(library/elaborator): bug in process_lower
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 04:13:14 -08:00
Leonardo de Moura
66f106da8c
test(tests/lean): new error msg test
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-21 03:20:04 -08:00
Leonardo de Moura
ce84fe5d33
feat(frontends/lean): improve error messages when elaborator cannot instantiate all metavariables
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 22:00:50 -08:00
Leonardo de Moura
bb81311e0a
feat(frontends/lean/parser): include proof state in exception for tactic failure
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 17:15:12 -08:00
Leonardo de Moura
84df182beb
refactor(kernel/instantiate): remove hackish (dead) function
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 14:37:05 -08:00
Leonardo de Moura
4d05a8b65b
fix(library/tactic/apply_tactic): provide the metavar_env to instantiate, the goal is to avoid add_lift and add_inst local entries
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 14:17:04 -08:00
Leonardo de Moura
1ed4aa391c
fix(library/fo_unify): bug at function that extracts the lhs and rhs of homogeneous/heterogeneous equality
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For homogeneous equality, arg #1 is the Type of the lhs/rhs.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 14:14:20 -08:00
Leonardo de Moura
7772c16033
refactor(kernel): add unfold_opaque flag to normalizer, modify how type checker uses the opaque flag, remove hidden_defs, and mark most builtin definitions as opaque
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After this commit, in the type checker, when checking convertability, we first compute a normal form without expanding opaque terms.
If the terms are convertible, then we are done, and saved a lot of time by not expanding unnecessary definitions.
If they are not, instead of throwing an error, we try again expanding the opaque terms.
This seems to be the best of both worlds.
The opaque flag is a hint for the type checker, but it would never prevent us from type checking a valid term.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 12:47:47 -08:00
Leonardo de Moura
026f666526
feat(kernel/type_checker): use expression before normalization in the unification constraints generated by the typechecker
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 11:22:13 -08:00
Leonardo de Moura
daef2b7b24
feat(util/sexpr/options): add is_eqp predicate for options
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 10:53:53 -08:00
Leonardo de Moura
4838c055b8
feat(kernel/environment): add set_opaque method
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 10:45:44 -08:00
Leonardo de Moura
812c1a2960
feat(library/elaborator): only expand definitions that are not marked as hidden
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The elaborator produces better proof terms. This is particularly important when we have to prove the remaining holes using tactics.
For example, in one of the tests, the elaborator was producing the sub-expression
(λ x : N, if ((λ x::1 : N, if (P a x x::1) ⊥ ⊤) == (λ x : N, ⊤)) ⊥ ⊤)
After, this commit it produces
(λ x : N, ¬ ∀ x::1 : N, ¬ P a x x::1)
The expressions above are definitionally equal, but the second is easier to work with.
Question: do we really need hidden definitions?
Perhaps, we can use only the opaque flag.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 02:16:49 -08:00
Leonardo de Moura
cb48fbf3c4
fix(library/elaborator): missing case
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The elaborator was failing in the following scenario:
- Failing constraint of the form
ctx |- ?m1 =:= ?m2
where
?m2 is assigned to ?m1,
and ?m1 is unassigned.
has_metavar(?m2, ?m1) returns true, and a cycle is incorrectly reported.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 01:39:43 -08:00
Leonardo de Moura
96ea8b81c8
feat(frontends/lean/parser): change show-expression binder name
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 01:30:18 -08:00
Leonardo de Moura
c730dd7872
feat(frontends/lean/parser): propagate position information to expressions created by macro implemented in Lua
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 01:07:37 -08:00
Leonardo de Moura
3eb4de6760
fix(frontends/lean/parser): fix deadlock in macro parser
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 21:40:00 -08:00
Leonardo de Moura
c77464703f
feat(frontends/lean): macro definition using Lua
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 19:08:10 -08:00
Leonardo de Moura
b08c606696
fix(library/io_state): bug in the io_state Lua bindings
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This commit also includes a new test that exposes the problem.
The options in the io_state object were being lost.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 16:39:42 -08:00
Leonardo de Moura
2648f41eaa
test(tests/lean): add new test script that checks if Lean can parse the output produced by its pretty printer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 16:16:56 -08:00
Leonardo de Moura
d9e692f506
feat(frontends/lean): improve coercion manangement
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 15:45:46 -08:00
Leonardo de Moura
f43db96e1f
fix(frontends/lean/pp): pretty printer for Type
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Add parenthesis around Type when it has a universe.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 15:24:45 -08:00
Leonardo de Moura
ae01d3818d
fix(frontends/lean/parser): parse_type method
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The parser had a nasty ambiguity. For example,
f Type 1
had two possible interpretations
(f (Type) (1))
or
(f (Type 1))
To fix this issue, whenever we want to specify a particular universe, we have to precede 'Type' with a parenthesis.
Examples:
(Type 1)
(Type U)
(Type M + 1)
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 15:24:34 -08:00
Leonardo de Moura
46627289b8
fix(kernel/expr): avoid '_' as a binder name, we use '_' as a placeholder in the Lean frontend
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 14:47:53 -08:00
Leonardo de Moura
6cc83dbe2a
fix(kernel/kernel_exception): incorrect pp method
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 14:46:22 -08:00
Leonardo de Moura
d3d24696f4
feat(frontends/lean): hide builtin object in the 'Show Environment' command
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The user can still display builtin objects by using
Show Environment all
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 14:00:58 -08:00
Leonardo de Moura
ad3f771b1d
feat(frontends/lean): hide 'explicit' version of objects with implicit arguments
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 13:12:39 -08:00
Leonardo de Moura
bff5a6bfb2
fix(frontends/lean/pp): make sure pp and parser are using the same precedences
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 12:46:14 -08:00
Leonardo de Moura
02bd166793
chore(library/basic_thms): fix typo in comment
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-19 12:22:05 -08:00
Leonardo de Moura
9b14744405
chore(examples/lean): use the same notation in the example set.lean
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 21:24:04 -08:00
Leonardo de Moura
dd72269b13
feat(frontends/lean): rename command Set to SetOption
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It is not nice to have Set as a reserved keyword. See example examples/lean/set.lean
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 21:18:48 -08:00
Leonardo de Moura
d7886c4f5f
doc(examples/lean): new example
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 21:03:16 -08:00
Leonardo de Moura
42cb5d1d3c
fix(tests/lean): typo
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 20:11:49 -08:00
Leonardo de Moura
8cfe5cf9ed
fix(frontends/lean/pp): pretty printer was ignoring notation decls in the local scope
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 18:00:37 -08:00
Leonardo de Moura
79fa6e4940
feat(frontends/lean): Scopes in the default Lean frontend
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 17:40:21 -08:00
Leonardo de Moura
97b872a05c
refactor(frontends/lean): remove frontend class, it is not needed anymore
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 14:37:55 -08:00
Leonardo de Moura
2aaa9a5273
feat(frontends/lean/parser): change function application precedence
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Now, we can write
Pi (x y : A), R x y -> R y x
instead of
Pi (x y : A), (R x y) -> (R y x)
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 12:44:15 -08:00
Leonardo de Moura
47c7bb1bde
refactor(*): uses aliases for unordered_map and unordered_set
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 12:30:45 -08:00
Leonardo de Moura
1e4fa76a47
feat(util/name_map): add template alias
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 11:34:40 -08:00
Leonardo de Moura
7b2fea3fab
fix(kernel/normalizer): compilation problem with clang++
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-18 08:46:36 -08:00
Leonardo de Moura
418623b874
feat(kernel/replace_fn): add template replace that captures commonly used pattern
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-17 18:31:59 -08:00
Leonardo de Moura
23e518001a
feat(kernel/normalizer): avoid unnecessary creation of closures for n-ary functions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-17 18:10:13 -08:00
Leonardo de Moura
10f28c7bec
feat(kernel/replace_fn): non-recursive replace_fn
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-17 16:35:39 -08:00
Leonardo de Moura
af4a6c9364
fix(kernel/normalizer): cache problems
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-17 14:52:14 -08:00