blob: 109ba15f69a4ad80cd60b70189b72d42c8c61691 (
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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
|
(ns lang.analyser
(:refer-clojure :exclude [resolve])
(:require (clojure [string :as string]
[template :refer [do-template]])
[clojure.core.match :refer [match]]
(lang [util :as &util :refer [exec return* return fail fail*
repeat-m try-m try-all-m map-m
apply-m within]]
[parser :as &parser]
[type :as &type])))
(declare analyse-form)
;; [Util]
(defn ^:private annotated [form type]
{:form form
:type type})
(defn ^:private fresh-env [id]
{:id id
:counter 0
:mappings {}
:closure/id 0})
(def ^:private module-name
(fn [state]
[::&util/ok [state (:name state)]]))
(defn ^:private define [name desc]
(fn [state]
[::&util/ok [(-> state
(assoc-in [:defs (:name state) name] desc)
(assoc-in [:defs-env name] (annotated [::global (:name state) name] (:type desc))))
nil]]))
(def ^:private next-local-idx
(fn [state]
[::&util/ok [state (-> state :env first :counter)]]))
(def ^:private my-frame
(fn [state]
[::&util/ok [state (-> state :env first)]]))
(defn ^:private with-local [name type body]
(fn [state]
(let [=return (body (update-in state [:env]
#(cons (-> (first %)
(update-in [:counter] inc)
(assoc-in [:mappings name] (annotated [::local (:id (first %)) (:counter (first %))] type)))
(rest %))))]
;; =return
(match =return
[::&util/ok [?state ?value]]
(do (prn 'POST-WITH-LOCAL name (-> ?state :env first))
[::&util/ok [(update-in ?state [:env] #(cons (-> (first %)
(update-in [:counter] dec)
(update-in [:mappings] dissoc name))
(rest %)))
;; (update-in ?state [:env] (fn [[top & oframes]]
;; (prn 'NEW-FRAMES name (cons (-> state :env first (assoc :closure (-> top :closure))) oframes))
;; (cons (-> state :env first (assoc :closure (-> top :closure))) oframes)))
?value]])
_
=return)
)))
(defn ^:private with-fresh-env [body]
(fn [state]
;; (prn '(:env state) (:env state) (-> state :env first :id inc))
(let [=return (body (update-in state [:env] #(conj % (fresh-env (-> % first :id inc)))))
;; _ (prn '=return =return)
]
(match =return
[::&util/ok [?state ?value]]
(do (prn 'PRE-LAMBDA (:env state))
(prn 'POST-LAMBDA (:env ?state) ?value)
[::&util/ok [(assoc ?state :env (:env state)) [(-> ?state :env first) ?value]]])
_
=return))))
(defn ^:private import-class [long-name short-name]
(fn [state]
(let [=class (annotated [::class long-name] ::&type/nothing)]
[::&util/ok [(update-in state [:imports] merge {long-name =class,
short-name =class})
nil]])))
(defn ^:private require-module [name alias]
(fn [state]
[::&util/ok [(assoc-in state [:deps alias] name)
nil]]))
(defn ^:private close-over [ident register frame]
(prn 'close-over ident register)
(let [register* (annotated [::captured (:id frame) (:closure/id frame) register] (:type register))]
[register* (-> frame
(update-in [:closure/id] inc)
(assoc-in [:mappings ident] register*))]))
(defn ^:private resolve [ident]
(fn [state]
(if-let [[_ ?alias ?binding] (re-find #"^(.*)/(.*)$" ident)]
(let [?module (get-in state [:deps ?alias])]
;; (prn 'resolve ?module ?alias ?binding)
[::&util/ok [state (annotated [::global ?module ?binding] ::&type/nothing)]])
(let [_ (prn 'resolve/_1 ident)
[inner outer] (split-with #(nil? (get-in % [:mappings ident])) (:env state))
;; _ (prn ident '[inner outer] [inner outer])
_ (prn 'resolve/_2 '[inner outer] [inner outer])]
(cond (empty? inner)
[::&util/ok [state (-> state :env first :mappings (get ident))]]
(empty? outer)
(if-let [global|import (or (get-in state [:defs-env ident])
(get-in state [:imports ident]))]
(do (prn 'resolve/_3 'global|import global|import)
[::&util/ok [state global|import]])
[::&util/failure (str "Unresolved identifier: " ident)])
:else
(let [[=local inner*] (reduce (fn [[register new-inner] frame]
(let [[register* frame*] (close-over ident register frame)]
[register* (cons frame* new-inner)]))
[(-> outer first :mappings (get ident)) '()]
(reverse inner))
_ (prn 'resolve/_4 '[=local inner*] =local inner*)]
[::&util/ok [(assoc state :env (concat inner* outer)) =local]])))
)))
(defmacro ^:private defanalyser [name match return]
`(def ~name
(fn [{[token# & left#] :forms :as state#}]
(match token#
~match
(~return (assoc state# :forms left#))
_#
(fail* (str "Unmatched token: " token#))))))
(defn analyse-form* [form]
;; (prn 'analyse-form* form)
(fn [state]
(let [old-forms (:forms state)
=return (analyse-form (assoc state :forms (list form)))
;; _ (prn 'analyse-form*/=return =return)
]
(match =return
[::&util/ok [?state ?value]]
[::&util/ok [(assoc ?state :forms old-forms) ?value]]
_
=return))))
(do-template [<name> <tag> <class>]
(defanalyser <name>
[<tag> ?value]
(return (annotated [::literal ?value] [::&type/object <class> []])))
analyse-boolean ::&parser/boolean "java.lang.Boolean"
analyse-int ::&parser/int "java.lang.Integer"
analyse-float ::&parser/float "java.lang.Float"
analyse-char ::&parser/char "java.lang.Character"
analyse-string ::&parser/string "java.lang.String"
)
(defanalyser analyse-variant
[::&parser/tagged ?tag ?value]
(exec [;; :let [_ (prn 'analyse-variant [?tag ?value])]
=value (analyse-form* ?value)
;; :let [_ (prn '=value =value)]
]
(return (annotated [::variant ?tag =value] [::&type/variant ?tag (:type =value)]))))
(defanalyser analyse-tuple
[::&parser/tuple ?elems]
(exec [=elems (map-m analyse-form* ?elems)]
(return (annotated [::tuple =elems] [::&type/tuple (mapv :type =elems)]))))
(defanalyser analyse-ident
[::&parser/ident ?ident]
;; (exec [_env (fn [state] [::&util/ok [state (:env state)]])
;; ;; :let [_ (prn 'analyse-ident ?ident _env)]
;; ]
;; (resolve ?ident))
(exec [=ident (resolve ?ident)
:let [_ (prn 'analyse-ident ?ident =ident)]]
(return =ident)))
(defanalyser analyse-ann-class
[::&parser/ann-class ?class ?members]
(return (annotated [::ann-class ?class ?members] ::&type/nothing)))
(defanalyser analyse-static-access
[::&parser/static-access ?target ?member]
(exec [=target (resolve ?target)
;; :let [_ (prn '=target ?target (:form =target))]
]
(match (:form =target)
[::class ?class]
(return (annotated [::static-access ?class ?member] ::&type/nothing)))))
(defanalyser analyse-dynamic-access
[::&parser/dynamic-access ?object ?member]
(exec [=object (analyse-form* ?object)]
(match ?member
[::&parser/fn-call [::&parser/ident ?method] ?args]
(exec [=args (map-m analyse-form* ?args)]
(return (annotated [::dynamic-access =object [?method =args]] ::&type/nothing))))))
(defanalyser analyse-fn-call
[::&parser/fn-call ?fn ?args]
(exec [;; :let [_ (prn 'PRE '?fn ?fn)]
=fn (analyse-form* ?fn)
;; :let [_ (prn '=fn =fn)]
=args (map-m analyse-form* ?args)
;; :let [_ (prn '=args =args)]
]
(return (annotated [::call =fn =args] [::&type/object "java.lang.Object" []]))))
(defanalyser analyse-if
[::&parser/if ?test ?then ?else]
(exec [=test (analyse-form* ?test)
;; :let [_ (prn '=test =test)]
;; :let [_ (prn 'PRE '?then ?then)]
=then (analyse-form* ?then)
;; :let [_ (prn '=then =then)]
=else (analyse-form* ?else)
;; :let [_ (prn '=else =else)]
]
(return (annotated [::if =test =then =else] ::&type/nothing))))
(defanalyser analyse-do
[::&parser/do ?exprs]
(exec [=exprs (map-m analyse-form* ?exprs)]
(return (annotated [::do =exprs] (-> =exprs last :type)))))
(defanalyser analyse-case
[::&parser/case ?variant ?branches]
(exec [;; :let [_ (prn '?variant ?variant)]
=variant (analyse-form* ?variant)
;; :let [_ (prn '=variant =variant)]
=branches (map-m (fn [branch]
;; (prn 'branch branch)
(match branch
[::&parser/case-branch [::&parser/tagged ?tag [::&parser/ident ?label]] ?body]
(exec [;; :let [_ (prn ?tag ?label '?body ?body)]
idx next-local-idx
=body (with-local ?label [::&type/object "java.lang.Object" []]
(analyse-form* ?body))
;; :let [_ (prn ?tag ?label '=body =body)]
]
(return [?tag ?label idx =body]))))
?branches)
;; :let [_ (prn '=branches =branches)]
]
(return (annotated [::case =variant =branches] ::&type/nothing))))
(defanalyser analyse-let
[::&parser/let ?label ?value ?body]
(exec [=value (analyse-form* ?value)
idx next-local-idx
=body (with-local ?label =value
(analyse-form* ?body))]
(return (annotated [::let idx ?label =value =body] (:type =body)))))
(defanalyser analyse-defclass
[::&parser/defclass ?name ?fields]
(let [=members {:fields (into {} (for [[class field] ?fields]
[field {:access ::public
:type class}]))}
=class [::class ?name =members]]
(exec [name module-name]
(return (annotated [::defclass [name ?name] =members] ::&type/nothing)))))
(defanalyser analyse-definterface
[::&parser/definterface ?name ?members]
(let [=members {:methods (into {} (for [[method [inputs output]] ?members]
[method {:access ::public
:type [inputs output]}]))}
=interface [::interface ?name =members]]
(exec [name module-name]
(return (annotated [::definterface [name ?name] =members] ::&type/nothing)))))
(defanalyser analyse-def
[::&parser/def ?usage ?value]
(match ?usage
[::&parser/ident ?name]
(exec [=value (analyse-form* ?value)
_ (define ?name {:mode ::constant
:access ::public
:type (:type =value)})]
(return (annotated [::def ?name =value] ::&type/nothing)))
[::&parser/fn-call [::&parser/ident ?name] ?args]
(let [args (for [a ?args]
(match a
[::&parser/ident ?ident]
?ident))]
(exec [[=function =args =return] (within :types (&type/fresh-function (count args)))
;; :let [_ (prn '[=function =args =return] [=function =args =return])]
;; :let [env (-> {}
;; (assoc ?name =function)
;; (into (map vector args =args)))
;; _ (prn 'env env)]
=value (reduce (fn [inner [label type]]
(with-local label type inner))
(analyse-form* ?value)
(reverse (map vector args =args)))
;; :let [_ (prn '=value =value)]
=function (within :types (exec [_ (&type/solve =return (:type =value))]
(&type/clean =function)))
;; :let [_ (prn '=function =function)]
_ (define ?name {:mode ::function
:access ::public
:type =function})]
(return (annotated [::def [?name args] =value] ::&type/nothing))))
))
(defanalyser analyse-lambda
[::&parser/lambda ?args ?body]
(exec [;; :let [_ (prn 'analyse-lambda ?args ?body)]
[=function =args =return] (within :types (&type/fresh-function (count ?args)))
;; :let [_ (prn '[=function =args =return] [=function =args =return])]
;; :let [_ (prn 'PRE/?body ?body)]
;; _env (fn [state] [::&util/ok [state (:env state)]])
;; :let [_ (prn 'analyse-lambda _env)]
[=frame =body] (with-fresh-env
(reduce (fn [inner [label type]]
(exec [=inner (with-local label type inner)
=frame* my-frame
:let [_ (prn '=frame* =frame*)]]
(return =inner)))
(analyse-form* ?body)
(reverse (map vector ?args =args))))
;; :let [_ (prn '=body =body)]
=function (within :types (exec [_ (&type/solve =return (:type =body))]
(&type/clean =function)))
;; :let [_ (prn '=function =function)]
]
(return (annotated [::lambda =frame ?args =body] =function))))
(defanalyser analyse-import
[::&parser/import ?class]
(exec [_ (import-class ?class (last (string/split ?class #"\.")))]
(return (annotated [::import ?class] ::&type/nothing))))
(defanalyser analyse-require
[::&parser/require ?file ?alias]
(let [;; _ (prn `[require ~?file ~?alias])
module-name (re-find #"[^/]+$" ?file)
;; _ (prn 'module-name module-name)
]
(exec [_ (require-module module-name ?alias)]
(return (annotated [::require ?file ?alias] ::&type/nothing)))))
(def ^:private analyse-form
(try-all-m [analyse-boolean
analyse-int
analyse-float
analyse-char
analyse-string
analyse-variant
analyse-tuple
analyse-lambda
analyse-ident
analyse-ann-class
analyse-static-access
analyse-dynamic-access
analyse-fn-call
analyse-if
analyse-do
analyse-case
analyse-let
analyse-defclass
analyse-definterface
analyse-def
analyse-import
analyse-require]))
;; [Interface]
(defn analyse [module-name tokens]
(match ((repeat-m analyse-form) {:name module-name,
:forms tokens
:deps {}
:imports {}
:defs {}
:defs-env {}
:env (list (fresh-env 0))
:types &type/+init+})
[::&util/ok [?state ?forms]]
(if (empty? (:forms ?state))
?forms
(assert false (str "Unconsumed input: " (pr-str (:forms ?state)))))
[::&util/failure ?message]
(assert false ?message)))
|