blob: 4133927e7ea8b01ec0cc091c0fa79e8f3ada1273 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
;; Copyright (c) Eduardo Julian. All rights reserved.
;; This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
;; If a copy of the MPL was not distributed with this file,
;; You can obtain one at http://mozilla.org/MPL/2.0/.
(ns lux.analyser
(:require (clojure [template :refer [do-template]])
clojure.core.match
clojure.core.match.array
(lux [base :as & :refer [|let |do return fail return* fail* |case]]
[reader :as &reader]
[parser :as &parser]
[type :as &type]
[host :as &host])
(lux.analyser [base :as &&]
[lux :as &&lux]
[host :as &&host]
[module :as &&module]
[parser :as &&a-parser])))
;; [Utils]
(defn analyse-variant+ [analyse exo-type ident values]
(|do [[module tag-name] (&/normalize ident)
_ (&&module/ensure-can-see-tag module tag-name)
idx (&&module/tag-index module tag-name)
group (&&module/tag-group module tag-name)
:let [is-last? (= idx (dec (&/|length group)))]]
(if (= 1 (&/|length group))
(|do [_cursor &/cursor]
(analyse exo-type (&/T [_cursor (&/$TupleS values)])))
(|case exo-type
(&/$VarT id)
(|do [? (&type/bound? id)]
(if (or ? (&&/type-tag? module tag-name))
(&&lux/analyse-variant analyse (&/$Right exo-type) idx is-last? values)
(|do [wanted-type (&&module/tag-type module tag-name)
wanted-type* (&type/instantiate-inference wanted-type)
[[variant-type variant-cursor] variant-analysis] (&&/cap-1 (&&lux/analyse-variant analyse (&/$Left wanted-type*) idx is-last? values))
_ (&type/check exo-type variant-type)]
(return (&/|list (&&/|meta exo-type variant-cursor variant-analysis))))))
_
(&&lux/analyse-variant analyse (&/$Right exo-type) idx is-last? values)
))
))
(defn ^:private just-analyse [analyser syntax]
(&type/with-var
(fn [?var]
(|do [[[?output-type ?output-cursor] ?output-term] (&&/analyse-1 analyser ?var syntax)]
(|case [?var ?output-type]
[(&/$VarT ?e-id) (&/$VarT ?a-id)]
(if (= ?e-id ?a-id)
(|do [=output-type (&type/clean ?var ?output-type)]
(return (&&/|meta =output-type ?output-cursor ?output-term)))
(|do [=output-type (&type/clean ?var ?var)]
(return (&&/|meta =output-type ?output-cursor ?output-term))))
[_ _]
(|do [=output-type (&type/clean ?var ?output-type)]
(return (&&/|meta =output-type ?output-cursor ?output-term))))
))))
(defn ^:private analyse-ast [optimize eval! compile-module compilers exo-type ?token]
(|let [analyse (partial analyse-ast optimize eval! compile-module compilers)
[cursor token] ?token
[compile-def compile-program compile-class compile-interface] compilers]
(|case token
;; Standard special forms
(&/$BoolS ?value)
(|do [_ (&type/check exo-type &type/Bool)]
(return (&/|list (&&/|meta exo-type cursor (&&/$bool ?value)))))
(&/$NatS ?value)
(|do [_ (&type/check exo-type &type/Nat)]
(return (&/|list (&&/|meta exo-type cursor (&&/$nat ?value)))))
(&/$IntS ?value)
(|do [_ (&type/check exo-type &type/Int)]
(return (&/|list (&&/|meta exo-type cursor (&&/$int ?value)))))
(&/$RealS ?value)
(|do [_ (&type/check exo-type &type/Real)]
(return (&/|list (&&/|meta exo-type cursor (&&/$real ?value)))))
(&/$CharS ?value)
(|do [_ (&type/check exo-type &type/Char)]
(return (&/|list (&&/|meta exo-type cursor (&&/$char ?value)))))
(&/$TextS ?value)
(|do [_ (&type/check exo-type &type/Text)]
(return (&/|list (&&/|meta exo-type cursor (&&/$text ?value)))))
(&/$TupleS ?elems)
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-tuple analyse (&/$Right exo-type) ?elems))
(&/$RecordS ?elems)
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-record analyse exo-type ?elems))
(&/$TagS ?ident)
(&/with-analysis-meta cursor exo-type
(analyse-variant+ analyse exo-type ?ident &/$Nil))
(&/$SymbolS ?ident)
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-symbol analyse exo-type ?ident))
(&/$FormS (&/$Cons [command-meta command] parameters))
(|case command
(&/$SymbolS _ command-name)
(case command-name
"_lux_case"
(|let [(&/$Cons ?value ?branches) parameters]
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-case analyse exo-type ?value ?branches)))
"_lux_lambda"
(|let [(&/$Cons [_ (&/$SymbolS "" ?self)]
(&/$Cons [_ (&/$SymbolS "" ?arg)]
(&/$Cons ?body
(&/$Nil)))) parameters]
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-lambda analyse exo-type ?self ?arg ?body)))
"_lux_proc"
(|let [(&/$Cons [_ (&/$TupleS (&/$Cons [_ (&/$TextS ?category)]
(&/$Cons [_ (&/$TextS ?proc)]
(&/$Nil))))]
(&/$Cons [_ (&/$TupleS ?args)]
(&/$Nil))) parameters]
(&/with-analysis-meta cursor exo-type
(&&host/analyse-host analyse exo-type compilers ?category ?proc ?args)))
"_lux_:"
(|let [(&/$Cons ?type
(&/$Cons ?value
(&/$Nil))) parameters]
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-ann analyse eval! exo-type ?type ?value)))
"_lux_:!"
(|let [(&/$Cons ?type
(&/$Cons ?value
(&/$Nil))) parameters]
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-coerce analyse eval! exo-type ?type ?value)))
"_lux_def"
(|let [(&/$Cons [_ (&/$SymbolS "" ?name)]
(&/$Cons ?value
(&/$Cons ?meta
(&/$Nil))
)) parameters]
(&/with-cursor cursor
(&&lux/analyse-def analyse optimize eval! compile-def ?name ?value ?meta)))
"_lux_module"
(|let [(&/$Cons ?meta (&/$Nil)) parameters]
(&/with-cursor cursor
(&&lux/analyse-module analyse optimize eval! compile-module ?meta)))
"_lux_program"
(|let [(&/$Cons [_ (&/$SymbolS "" ?args)]
(&/$Cons ?body
(&/$Nil))) parameters]
(&/with-cursor cursor
(&&lux/analyse-program analyse optimize compile-program ?args ?body)))
;; else
(&/with-cursor cursor
(|do [=fn (just-analyse analyse (&/T [command-meta command]))]
(&&lux/analyse-apply analyse cursor exo-type =fn parameters))))
(&/$NatS idx)
(&/with-analysis-meta cursor exo-type
(&&lux/analyse-variant analyse (&/$Right exo-type) idx nil parameters))
(&/$TagS ?ident)
(&/with-analysis-meta cursor exo-type
(analyse-variant+ analyse exo-type ?ident parameters))
_
(&/with-cursor cursor
(|do [=fn (just-analyse analyse (&/T [command-meta command]))]
(&&lux/analyse-apply analyse cursor exo-type =fn parameters))))
_
(&/fail-with-loc (str "[Analyser Error] Unknown syntax: " (prn-str (&/show-ast (&/T [(&/T ["" -1 -1]) token])))))
)))
;; [Resources]
(defn analyse [optimize eval! compile-module compilers]
(|do [asts &parser/parse]
(&/flat-map% (partial analyse-ast optimize eval! compile-module compilers &/$VoidT) asts)))
(defn clean-output [?var analysis]
(|do [:let [[[?output-type ?output-cursor] ?output-term] analysis]
=output-type (&type/clean ?var ?output-type)]
(return (&&/|meta =output-type ?output-cursor ?output-term))))
(defn repl-analyse [optimize eval! compile-module compilers]
(|do [asts &parser/parse]
(&/flat-map% (fn [ast]
(&type/with-var
(fn [?var]
(|do [=outputs (&/with-closure
(analyse-ast optimize eval! compile-module compilers ?var ast))]
(&/map% (partial clean-output ?var) =outputs)))))
asts)))
|
