1 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3 ;;; Confidential and proprietary information of ITA Software, Inc. ;;;
5 ;;; Copyright (c) 2012 ITA Software, Inc. All rights reserved. ;;;
7 ;;; Original author: Scott McKay ;;;
9 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
11 (in-package "PROTO-IMPL")
14 ;;; Optimized fixnum arithmetic
16 (defmacro i+ (&rest fixnums)
17 `(the fixnum (+ ,@(loop for n in fixnums collect `(the fixnum ,n)))))
19 (defmacro i- (number &rest fixnums)
20 `(the fixnum (- (the fixnum ,number) ,@(loop for n in fixnums collect `(the fixnum ,n)))))
22 (defmacro i* (&rest fixnums)
23 `(the fixnum (* ,@(loop for n in fixnums collect `(the fixnum ,n)))))
25 (defmacro i= (&rest fixnums)
26 `(= ,@(loop for n in fixnums collect `(the fixnum ,n))))
28 (defmacro i< (&rest fixnums)
29 `(< ,@(loop for n in fixnums collect `(the fixnum ,n))))
31 (defmacro i<= (&rest fixnums)
32 `(<= ,@(loop for n in fixnums collect `(the fixnum ,n))))
34 (defmacro i> (&rest fixnums)
35 `(> ,@(loop for n in fixnums collect `(the fixnum ,n))))
37 (defmacro i>= (&rest fixnums)
38 `(>= ,@(loop for n in fixnums collect `(the fixnum ,n))))
40 (defmacro iash (value count)
41 `(the fixnum (ash (the fixnum ,value) (the fixnum ,count))))
43 (defmacro ilogior (&rest fixnums)
45 `(the fixnum (logior (the fixnum ,(car fixnums))
47 `(ilogior ,@(cdr fixnums))
48 `(the fixnum ,(cadr fixnums)))))
49 `(the fixnum ,(car fixnums))))
51 (defmacro ilogand (&rest fixnums)
53 `(the fixnum (logand (the fixnum ,(car fixnums))
55 `(ilogand ,@(cdr fixnums))
56 `(the fixnum ,(cadr fixnums)))))
57 `(the fixnum ,(car fixnums))))
59 (define-modify-macro iincf (&optional (delta 1)) i+)
60 (define-modify-macro idecf (&optional (delta 1)) i-)
62 (defmacro ildb (bytespec value)
63 `(ldb ,bytespec (the fixnum ,value)))
68 (defun starts-with (string prefix &key (start 0))
69 "Returns true if 'string' starts with the prefix 'prefix' (case insensitive)."
70 (and (i>= (length string) (i+ start (length prefix)))
71 (string-equal string prefix :start1 start :end1 (i+ start (length prefix)))
74 (defun ends-with (string suffix &key (end (length string)))
75 "Returns true if 'string' ends with the prefix 'prefix' (case insensitive)."
76 (and (i>= end (length suffix))
77 (string-equal string suffix :start1 (i- end (length suffix)) :end1 end)
81 ;; (camel-case "camel-case") => "CamelCase"
82 (defun camel-case (string &optional (separators '(#\-)))
83 (let ((words (split-string string :separators separators)))
84 (format nil "~{~@(~A~)~}" words)))
86 ;; (camel-case-but-one "camel-case") => "camelCase"
87 (defun camel-case-but-one (string &optional (separators '(#\-)))
88 (let ((words (split-string string :separators separators)))
89 (format nil "~(~A~)~{~@(~A~)~}" (car words) (cdr words))))
91 ;; (uncamel-case "CamelCase") => "Camel-Case"
92 ;; (uncamel-case "TCPConnection") => "Tcp-Connection"
93 (defun uncamel-case (string &optional (separator #\-))
94 (format nil (format nil "~~{~~A~~^~C~~}" separator)
95 (cl-ppcre:split "(?<=[a-z])(?=[A-Z])" string)))
98 (defun split-string (line &key (start 0) (end (length line)) (separators '(#\-)))
99 "Given a string 'string', splits it at each of the separators.
100 Returns a list of the string pieces, with empty pieces removed."
101 (unless (i= start end)
102 (loop for this fixnum = start then (i+ next 1)
103 for next fixnum = (or (position-if #'(lambda (ch) (member ch separators)) line
104 :start this :end end)
106 for piece = (string-right-trim '(#\space) (subseq line this next))
107 when (not (i= (length piece) 0))
109 until (i>= next end))))
114 (defmacro with-gensyms ((&rest bindings) &body body)
115 `(let ,(mapcar #'(lambda (b) `(,b (gensym ,(string b)))) bindings)
118 (defun make-lisp-symbol (string)
119 "Intern a string of the 'package:string' and return the symbol."
120 (let* ((string (string string))
121 (colon (position #\: string))
122 (pkg (if colon (subseq string 0 colon) "KEYWORD"))
123 (sym (if colon (subseq string (+ colon 1)) string)))
126 (defun fintern (format-string &rest format-args)
127 "Interns a new symbol in the current package."
128 (declare (dynamic-extent format-args))
129 (intern (nstring-upcase (apply #'format nil format-string format-args))))
131 (defun kintern (format-string &rest format-args)
132 "Interns a new symbol in the keyword package."
133 (declare (dynamic-extent format-args))
134 (intern (nstring-upcase (apply #'format nil format-string format-args)) "KEYWORD"))
139 (defmacro with-collectors ((&rest collection-descriptions) &body body)
140 (let ((let-bindings ())
144 (dolist (description collection-descriptions)
145 (destructuring-bind (place name) description
146 (let ((vtail (make-symbol (format nil "~A-TAIL" place))))
147 (setq dynamic-extents
148 (nconc dynamic-extents `(#',name)))
156 (setq ,vtail (if ,vtail
157 (setf (cdr ,vtail) (list ,vobj))
158 (setf ,place (list ,vobj)))))))))))
159 `(let (,@let-bindings)
160 (flet (,@flet-bindings)
161 ,@(and dynamic-extents
162 `((declare (dynamic-extent ,@dynamic-extents))))
165 (defmacro with-prefixed-accessors (names (prefix object) &body body)
166 `(with-accessors (,@(loop for name in names
167 collect `(,name ,(fintern "~A~A" prefix name))))
172 ;;; Functional programming, please
174 (defun curry (function &rest args)
175 (if (and args (null (cdr args))) ;fast test for length = 1
176 (let ((arg (car args)))
177 #'(lambda (&rest more-args)
178 (apply function arg more-args)))
179 #'(lambda (&rest more-args)
180 (apply function (append args more-args)))))
182 (define-compiler-macro curry (&whole form function &rest args &environment env)
183 (declare (ignore env))
184 (if (and (listp function)
185 (eq (first function) 'function)
186 (symbolp (second function))
187 (and args (null (cdr args))))
188 `#'(lambda (&rest more-args)
189 (apply ,function ,(car args) more-args))
192 ;; A parameterized list types for repeated fields (not type-checked!)
193 (deftype list-of (type)
198 ;;; Code generation utilities
200 (defvar *proto-name-separators* '(#\- #\_ #\/ #\space))
201 (defvar *camel-case-field-names* nil)
203 ;; "class-name" -> "ClassName", ("ClassName")
204 ;; "outer-class.inner-class" -> "InnerClass", ("OuterClass" "InnerClass")
205 (defun class-name->proto (x)
206 "Given a Lisp class name, returns a Protobufs message or enum name.
207 The second value is the fully qualified name, as a list."
208 (let* ((xs (split-string (string x) :separators '(#\.)))
209 (ns (loop for x in (butlast xs)
210 collect (remove-if-not #'alphanumericp
211 (camel-case (format nil "~A" x) *proto-name-separators*))))
213 (name (remove-if-not #'alphanumericp (camel-case nx *proto-name-separators*))))
214 (values name (append ns (list name)))))
216 ;; "enum-value" -> "ENUM_VALUE", ("ENUM_VALUE")
217 ;; "class-name.enum-value" -> "ENUM_VALUE", ("ClassName" "ENUM_VALUE")
218 (defun enum-name->proto (x &optional prefix)
219 "Given a Lisp enum value name, returns a Protobufs enum value name.
220 The second value is the fully qualified name, as a list."
221 (let* ((xs (split-string (string x) :separators '(#\.)))
222 (ns (loop for x in (butlast xs)
223 collect (remove-if-not #'alphanumericp
224 (camel-case (format nil "~A" x) *proto-name-separators*))))
225 (nx (string-upcase (car (last xs))))
226 (nx (if (and prefix (starts-with nx prefix)) (subseq nx (length prefix)) nx))
227 ;; Keep underscores, they are standards separators in Protobufs enum names
228 (name (remove-if-not #'(lambda (x) (or (alphanumericp x) (eql x #\_)))
229 (format nil "~{~A~^_~}"
230 (split-string nx :separators *proto-name-separators*)))))
231 (values name (append ns (list name)))))
233 ;; "slot-name" -> "slot_name", ("slot_name") or "slotName", ("slotName")
234 ;; "class-name.slot-name" -> "Class.slot_name", ("ClassName" "slot_name")
235 (defun slot-name->proto (x)
236 "Given a Lisp slot name, returns a Protobufs field name.
237 The second value is the fully qualified name, as a list."
238 (let* ((xs (split-string (string x) :separators '(#\.)))
239 (ns (loop for x in (butlast xs)
240 collect (remove-if-not #'alphanumericp
241 (camel-case (format nil "~A" x) *proto-name-separators*))))
242 (nx (string-downcase (car (last xs))))
243 (name (if *camel-case-field-names*
244 (remove-if-not #'alphanumericp
245 (camel-case-but-one (format nil "~A" nx) *proto-name-separators*))
246 ;; Keep underscores, they are standards separators in Protobufs field names
247 (remove-if-not #'(lambda (x) (or (alphanumericp x) (eql x #\_)))
248 (format nil "~{~A~^_~}"
249 (split-string nx :separators *proto-name-separators*))))))
250 (values name (append ns (list name)))))
253 ;; "ClassName" -> 'class-name
254 ;; "cl-user.ClassName" -> 'cl-user::class-name
255 ;; "cl-user.OuterClass.InnerClass" -> 'cl-user::outer-class.inner-class
256 (defun proto->class-name (x &optional package)
257 "Given a Protobufs message or enum type name, returns a Lisp class or type name.
258 This resolves Protobufs qualified names as best as it can."
259 (let* ((xs (split-string (substitute #\- #\_ (string-upcase (uncamel-case x)))
261 (pkg (and (cdr xs) (find-package (first xs))))
262 (package (or pkg package))
263 (name (format nil "~{~A~^.~}" (if pkg (cdr xs) xs))))
264 (values (if package (intern name package) (make-symbol name)) package xs)))
266 ;; "ENUM_VALUE" -> 'enum-value
267 ;; "cl-user.ENUM_VALUE" -> 'cl-user::enum-value
268 ;; "cl-user.OuterClass.ENUM_VALUE" -> 'cl-user::outer-class.enum-value
269 (defun proto->enum-name (x &optional package)
270 "Given a Protobufs enum value name, returns a Lisp enum value name.
271 This resolves Protobufs qualified names as best as it can."
272 (let* ((xs (split-string (substitute #\- #\_ (string-upcase (uncamel-case x)))
274 (pkg (and (cdr xs) (find-package (first xs))))
275 (package (or pkg package))
276 (name (format nil "~{~A~^.~}" (if pkg (cdr xs) xs))))
277 (values (if package (intern name package) (make-symbol name)) package xs)))
279 ;; "slot_name" or "slotName" -> 'slot-name
280 ;; "cl-user.slot_name" or "cl-user.slotName" -> 'cl-user::slot-name
281 ;; "cl-user.OuterClass.slot_name" -> 'cl-user::outer-class.slot-name
282 (defun proto->slot-name (x &optional package)
283 "Given a Protobufs field value name, returns a Lisp slot name.
284 This resolves Protobufs qualified names as best as it can."
285 (let* ((xs (split-string (substitute #\- #\_ (string-upcase (uncamel-case x)))
287 (pkg (and (cdr xs) (find-package (first xs))))
288 (package (or pkg package))
289 (name (format nil "~{~A~^.~}" (if pkg (cdr xs) xs))))
290 (values (if package (intern name package) (make-symbol name)) package xs)))
293 (define-condition protobufs-warning (warning simple-condition) ())
295 (defun protobufs-warn (format-control &rest format-arguments)
296 (warn 'protobufs-warning
297 :format-control format-control
298 :format-arguments format-arguments))
301 #-(or allegro lispworks)
302 (defmacro without-redefinition-warnings (() &body body)
306 (defmacro without-redefinition-warnings (() &body body)
307 `(excl:without-redefinition-warnings ,@body))
310 (defmacro without-redefinition-warnings (() &body body)
311 `(let ((dspec:*redefinition-action* :quiet)) ,@body))
314 ;;; Floating point utilities
316 #+(or abcl allegro cmu sbcl lispworks)
317 (defun single-float-bits (x)
318 (declare (type single-float x))
319 #+abcl (system:single-float-bits x)
320 #+allegro (multiple-value-bind (high low)
321 (excl:single-float-to-shorts x)
322 (declare (type (unsigned-byte 16) high low))
323 (logior (ash high 16) low))
324 #+cmu (kernel:single-float-bits x)
325 #+sbcl (sb-kernel:single-float-bits x)
326 #+lispworks (lispworks-float:single-float-bits x))
328 #-(or abcl allegro cmu sbcl lispworks)
329 (defun single-float-bits (x)
330 (declare (type single-float x))
331 (assert (= (float-radix x) 2))
333 (if (eql x 0.0f0) 0 #x-80000000)
334 (multiple-value-bind (lisp-significand lisp-exponent lisp-sign)
335 (integer-decode-float x)
336 (assert (plusp lisp-significand))
337 (let* ((significand lisp-significand)
338 (exponent (+ lisp-exponent 23 127))
340 (if (plusp exponent) ;if not obviously denormalized
343 ;; Special termination case for denormalized float number
345 ;; Denormalized numbers have exponent one greater than
346 ;; in the exponent field
347 (return (ash significand -1)))
348 ;; Ordinary termination case
349 ((>= significand (expt 2 23))
350 (assert (< 0 significand (expt 2 24)))
351 ;; Exponent 0 is reserved for denormalized numbers,
352 ;; and 255 is reserved for specials like NaN
353 (assert (< 0 exponent 255))
354 (return (logior (ash exponent 23)
355 (logand significand (1- (ash 1 23))))))
357 ;; Shift as necessary to set bit 24 of significand
358 (setq significand (ash significand 1)
359 exponent (1- exponent)))))
360 (do () ((zerop exponent)
361 ;; Denormalized numbers have exponent one greater than
362 ;; the exponent field
363 (ash significand -1))
364 (unless (zerop (logand significand 1))
365 (warn "Denormalized '~S' losing bits in ~D" 'single-float-bits x))
366 (setq significand (ash significand -1)
367 exponent (1+ exponent))))))
369 ((1) unsigned-result)
370 ((-1) (logior unsigned-result (- (expt 2 31)))))))))
373 #+(or abcl allegro cmu sbcl lispworks)
374 (defun double-float-bits (x)
375 (declare (type double-float x))
376 #+abcl (values (system:double-float-low-bits x)
377 (system:double-float-high-bits x))
378 #+allegro (multiple-value-bind (us3 us2 us1 us0)
379 (excl:double-float-to-shorts x)
380 (logior (ash us1 16) us0)
381 (logior (ash us3 16) us2))
382 #+cmu (values (kernel:double-float-low-bits x)
383 (kernel:double-float-high-bits x))
384 #+sbcl (values (sb-kernel:double-float-low-bits x)
385 (sb-kernel:double-float-high-bits x))
386 #+lispworks (let ((bits (lispworks-float:double-float-bits x)))
387 (values (logand #xffffffff bits)
390 #-(or abcl allegro cmu sbcl lispworks)
391 (defun double-float-bits (x)
392 (declare (type double-float x))
393 (assert (= (float-radix x) 2))
395 (if (eql x 0.0d0) 0 #x-8000000000000000)
396 (multiple-value-bind (lisp-significand lisp-exponent lisp-sign)
397 (integer-decode-float x)
398 (assert (plusp lisp-significand))
399 (let* ((significand lisp-significand)
400 (exponent (+ lisp-exponent 52 1023))
402 (if (plusp exponent) ;if not obviously denormalized
405 ;; Special termination case for denormalized float number
407 ;; Denormalized numbers have exponent one greater than
408 ;; in the exponent field
409 (return (ash significand -1)))
410 ;; Ordinary termination case
411 ((>= significand (expt 2 52))
412 (assert (< 0 significand (expt 2 53)))
413 ;; Exponent 0 is reserved for denormalized numbers,
414 ;; and 2047 is reserved for specials like NaN
415 (assert (< 0 exponent 2047))
416 (return (logior (ash exponent 52)
417 (logand significand (1- (ash 1 52))))))
419 ;; Shift as necessary to set bit 53 of significand
420 (setq significand (ash significand 1)
421 exponent (1- exponent)))))
422 (do () ((zerop exponent)
423 ;; Denormalized numbers have exponent one greater than
424 ;; the exponent field
425 (ash significand -1))
426 (unless (zerop (logand significand 1))
427 (warn "Denormalized '~S' losing bits in ~D" 'double-float-bits x))
428 (setq significand (ash significand -1)
429 exponent (1+ exponent))))))
432 ((1) unsigned-result)
433 ((-1) (logior unsigned-result (- (expt 2 63)))))))
434 ;; Return the low bits and the high bits
435 (values (logand #xffffffff result) (ash result -32)))))))
438 #+(or abcl allegro cmu sbcl lispworks)
439 (defun make-single-float (bits)
440 (declare (type (signed-byte 32) bits))
441 #+abcl (system:make-single-float bits)
442 #+allegro (excl:shorts-to-single-float (ldb (byte 16 16) bits)
443 (ldb (byte 16 0) bits))
444 #+cmu (kernel:make-single-float bits)
445 #+sbcl (sb-kernel:make-single-float bits)
446 #+lispworks (lispworks-float:make-single-float bits))
448 #-(or abcl allegro cmu sbcl lispworks)
449 (defun make-single-float (bits)
450 (declare (type (signed-byte 32) bits))
452 ;; IEEE float special cases
454 ((= bits #x-80000000) -0.0)
456 (let* ((sign (ecase (ldb (byte 1 31) bits)
459 (iexpt (ldb (byte 8 23) bits))
460 (exponent (if (zerop iexpt) ;denormalized
463 (mantissa (* (logior (ldb (byte 23 0) bits)
464 (if (zerop iexpt) 0 (ash 1 23)))
466 (* sign (expt 2.0 exponent) mantissa)))))
469 #+(or abcl allegro cmu sbcl lispworks)
470 (defun make-double-float (low high)
471 (declare (type (unsigned-byte 32) low)
472 (type (signed-byte 32) high))
473 #+abcl (system:make-double-float (logior (ash high 32) low))
474 #+allegro (excl:shorts-to-double-float (ldb (byte 16 16) high)
475 (ldb (byte 16 0) high)
476 (ldb (byte 16 16) low)
477 (ldb (byte 16 0) low))
478 #+cmu (kernel:make-double-float high low)
479 #+sbcl (sb-kernel:make-double-float high low)
480 #+lispworks (lispworks-float:make-double-float high low))
482 #-(or abcl allegro cmu sbcl lispworks)
483 (defun make-double-float (low high)
484 (declare (type (unsigned-byte 32) low)
485 (type (signed-byte 32) high))
487 ;; IEEE float special cases
488 ((and (zerop high) (zerop low)) 0.0d0)
489 ((and (= high #x-80000000)
492 (let* ((bits (logior (ash high 32) low))
493 (sign (ecase (ldb (byte 1 63) bits)
496 (iexpt (ldb (byte 11 52) bits))
497 (exponent (if (zerop iexpt) ;denormalized
500 (mantissa (* (logior (ldb (byte 52 0) bits)
501 (if (zerop iexpt) 0 (ash 1 52)))
503 (* sign (expt 2.0d0 exponent) mantissa)))))