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(in-package "JVM")
(acl2::set-verify-guards-eagerness 2)
(include-book "../M6-DJVM-shared/jvm-type-value")
;;
;; Internal representation of the object
;;
;; (object (commoninfo <hashcode> <monitor> <of-class>)
;; (type-specific-info )
;; <java-visible portion>)
;;
;; specific-type :: INSTANCE_CLASS ARRAY_CLASS STRING ARRAY GENERIC_OBJECT
;;
;; Java-visible portion just like what it has been in M5
;; except some tags is removed from data values.
;;
;;
(defun make-object (commoninfo specific-info java-visible-part)
(list 'object commoninfo specific-info java-visible-part))
(defun wff-obj (obj)
(and (true-listp obj)
(equal (length obj) 4)))
(defun common-info (object)
(declare (xargs :guard (wff-obj object)))
(nth 1 object))
(defun specific-info (object)
(declare (xargs :guard (wff-obj object)))
(nth 2 object)) ;; the format depends on types
(defun java-visible-portion (object)
(declare (xargs :guard (wff-obj object)))
(nth 3 object))
(defun obj-set-common-info (cminfo obj)
(declare (xargs :guard (wff-obj obj)))
(make-object cminfo
(specific-info obj)
(java-visible-portion obj)))
(defun obj-set-specific-info (spinfo obj)
(declare (xargs :guard (wff-obj obj)))
(make-object (common-info obj)
spinfo
(java-visible-portion obj)))
(defun obj-set-java-visible-portion (jvp obj)
(declare (xargs :guard (wff-obj obj)))
(make-object (common-info obj)
(specific-info obj)
jvp))
(defun make-common-info (hashcode monitor class-ptr)
(list 'common-info hashcode monitor class-ptr))
(defun wff-common-info (cminfo)
(and (true-listp cminfo)
(equal (length cminfo) 4)))
(defun hashcode (cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(nth 1 cminfo)) ;; a number.
(defun monitor (cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(nth 2 cminfo))
(defun class-ptr (cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(nth 3 cminfo))
(defun obj-hashcode (object)
(declare (xargs :guard (and (wff-obj object)
(wff-common-info (common-info object)))))
(hashcode (common-info object))) ;; a number
(defun obj-monitor (object)
(declare (xargs :guard (and (wff-obj object)
(wff-common-info (common-info object)))))
(monitor (common-info object))) ;; a composite structure
(defun obj-class-ptr (object)
(declare (xargs :guard (and (wff-obj object)
(wff-common-info (common-info object)))))
(class-ptr (common-info object))) ;; a number
(defun obj-type (obj) ;; object's runtime type.
(declare (xargs :guard (and (wff-obj obj)
(wff-common-info (common-info obj)))))
(obj-class-ptr obj))
;;
;; 08/27/03: Do we want to assert that hashcode is a number? (it could show up
;; on the operand stack) We need some properties about native
;; methods. asserting native method preserve the type and consistent-state!
;;
;;
;; In the common info section of the Object representation:
;;
;; three fields -- hashcode, monitor, and class-ptr.
;;
;; current class-ptr is a symbolic reference in our M6. We assume all the
;; symbolic reference recorded here are already loaded.
;;
;; In real KVM this ptr is a pointer to the the obj of type java.lang.Class
;; that represent the type of this Object
;;
(defun common-info-set-hashcode (h cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(make-common-info h (monitor cminfo) (class-ptr cminfo)))
(defun common-info-set-monitor (m cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(make-common-info (hashcode cminfo) m (class-ptr cminfo)))
(defun common-info-set-class-ptr (p cminfo)
(declare (xargs :guard (wff-common-info cminfo)))
(make-common-info (hashcode cminfo) (monitor cminfo) p))
;---------------------
(defun make-monitor (th mcount mqueue cqueue)
(list 'monitor th mcount mqueue cqueue))
(defun wff-monitor (monitor)
(and (true-listp monitor)
(equal (length monitor) 5)))
(defun new-monitor ()
(make-monitor -1 0 nil nil))
(defun owner (monitor)
(declare (xargs :guard (wff-monitor monitor)))
(nth 1 monitor))
(defun depth (monitor)
(declare (xargs :guard (wff-monitor monitor)))
(nth 2 monitor))
(defun mqueue (monitor)
(declare (xargs :guard (wff-monitor monitor)))
(nth 3 monitor)) ;; monitor queue
(defun cqueue (monitor)
(declare (xargs :guard (wff-monitor monitor)))
(nth 4 monitor)) ;; conditional variable queue
(defun monitor-set-owner (owner monitor)
(declare (xargs :guard (wff-monitor monitor)))
(make-monitor owner
(depth monitor)
(mqueue monitor)
(cqueue monitor)))
(defun monitor-set-depth (d monitor)
(declare (xargs :guard (wff-monitor monitor)))
(make-monitor (owner monitor)
d
(mqueue monitor)
(cqueue monitor)))
(defun monitor-set-mqueue (mqueue monitor)
(declare (xargs :guard (wff-monitor monitor)))
(make-monitor (owner monitor)
(depth monitor)
mqueue
(cqueue monitor)))
(defun monitor-set-cqueue (cqueue monitor)
(declare (xargs :guard (wff-monitor monitor)))
(make-monitor (owner monitor)
(depth monitor)
(mqueue monitor)
cqueue))
;---
(defun make-INSTANCE_CLASS-specific-info (class-desc)
(list 'specific-info 'INSTANCE_CLASS class-desc))
;;
;; class-ptr is something we can used to find the class-desc in the internal
;; class-table. (class-name)
;;
;; This class-desc here is different from the class-ptr in the
;; common-info section of the obj repesentation.
;;
;; class-desc record what is the class this object of "java.lang.Class" representing
;; while the class-ptr records what is the type of the object itself.
;;
(defun make-ARRAY_CLASS-specific-info (element-type)
(list 'specific-info 'ARRAY_CLASS element-type))
;; Object of class "java.lang.Class" that represents Array Class that represent
;; element-type.
;;(defun make-ARRAY-specific-info (element-type length)
;; (list 'specific-info 'ARRAY element-type length))
;; THIS IS NOT USED!!!
(defun make-ARRAY-specific-info (internal-array length)
(list 'specific-info 'ARRAY internal-array length))
;; this is right!
(defun make-STRING-specific-info ()
(list 'specific-info 'STRING))
;; Comments: ;; how could we find out the java.lang.Class object that
;; represents the STRING class adding entries to the internal
;; class-table? same is true for array... we need special
;; handling for finding the reference for a particular type. Need
;; some work in internal-class-table. don't worry about it now.
;; we have an internal class-table which is used for lookup from
;; classname/array sig to class-obj ref. 8-27-2002
;;
;; although it is not necessary that there exists an java object representing
;; Java array? Class.forName() have to return such an reference.
;;
(defun make-INSTANCE-specific-info ()
(list 'specific-info 'GENERIC_OBJECT))
(defun make-INSTANCECLASS-specific-info (class-ptr)
(list 'specific-info class-ptr))
(defun make-instanceclassarrayclass-info (type-desc)
(list 'specific-info 'ARRAY_CLASS type-desc))
;;
;; message is a reference to a Java String Object, backtrace is an list of ??
;;
(defun make-THROWABLE-specific-info (message backtrace)
(list 'specific-info 'THROWABLE_OBJECT message backtrace))
;;
;; Special specific-info
;;
;; INSTANCE-CLASS
;; ARRAY-CLASS
;; STRING
;; THROWABLE_OBJECT
;; ARRAY
;; GENERIC_OBJECT
;;
;---------------------------------------------------------------------------
;
; Tue Jan 13 14:41:23 2004 Define a set of wff predicated which will be used
;
; in jvm-object-manipulation-primitives.lisp
;
; Originally from consistent-state.lisp
(defun wff-internal-heap-obj (obj)
(and (true-listp obj)
(equal (len obj) 4)
(equal (car obj) 'object)))
; (defun wff-internal-array (array-obj)
; (and (wff-internal-heap-obj array-obj)
; (wff-ARRAY-specific-info (specific-info array-obj))))
;; (defun wff-class-ptr (class-ptr)
;; (and (true-listp class-ptr)
;; (or ;; (isoClassType class-ptr)
;; ;; (stringp class-ptr) ;; FIX: 10/27/03 to comply with M6's
;; ;; usage. cf. consistent-test.lisp
;; (isClassType class-ptr) ;; 10/28/03 FIX. changed the definition of
;; ;; isClassType
;; (isArrayType class-ptr))))
(defun wff-class-ptr (class-ptr)
(or ;; (isoClassType class-ptr)
;; (stringp class-ptr) ;; FIX: 10/27/03 to comply with M6's
;; usage. cf. consistent-test.lisp
(isClassType class-ptr) ;; 10/28/03 FIX. changed the definition of
;; isClassType
(isArrayType class-ptr)))
;;; change the definition of wff-class-ptr
;;;
(defun wff-common-info-strong (common-info)
(and (true-listp common-info)
(equal (len common-info) 4)
(wff-class-ptr (nth 3 common-info))))
(defun wff-jvp (jvp)
(alistp jvp))
;----------------------------------------------------------------------
(defun wff-INSTANCE_CLASS-specific-info (specific-info)
(and (true-listp specific-info)
(equal (len specific-info) 3)
(equal (car specific-info) 'specific-info)
(equal (nth 1 specific-info) 'INSTANCE_CLASS)
(wff-type-desc (nth 2 specific-info))))
(defun wff-ARRAY_CLASS-specific-info (specific-info)
(and (true-listp specific-info)
(equal (len specific-info) 3)
(equal (car specific-info) 'specific-info)
(equal (nth 1 specific-info) 'ARRAY_CLASS)
(wff-type-desc (nth 2 specific-info))))
(defun wff-ARRAY-specific-info (specific-info)
(and (true-listp specific-info)
(equal (len specific-info) 4)
(equal (car specific-info) 'specific-info)
(equal (nth 1 specific-info) 'ARRAY)
(integerp (nth 3 specific-info))
(true-listp (nth 2 specific-info))
(equal (len (nth 2 specific-info)) (nth 3 specific-info))))
(defun wff-STRING-specific-info (specific-info)
(and (true-listp specific-info)
(equal (len specific-info) 2)
(equal (car specific-info) 'specific-info)
(equal (nth 1 specific-info) 'STRING)))
;;(stringp (nth 3 specific-info))))
;; (equal (nth 3 specific-info) -1))
;; (nullp (nth 3 specific-info)))))
;; (defun wff-STRING-specific-info (specific-info)
;; (and (true-listp specific-info)
;; (equal (len specific-info) 4)
;; (equal (car specific-info) 'specific-info)
;; (equal (nth 1 specific-info) 'STRING)
;; (stringp (nth 3 specific-info))))
;; ;; (equal (nth 3 specific-info) -1))
;; ;; (nullp (nth 3 specific-info)))))
;; (defun make-THROWABLE-specific-info (message backtrace)
;; (list 'specific-info 'THROWABLE_OBJECT message backtrace))
(defun wff-THROWABLE-specific-info (specific-info)
(and (true-listp specific-info)
(equal (len specific-info) 4)
(equal (car specific-info) 'specific-info)
(equal (nth 1 specific-info) 'THROWABLE_OBJECT)
(stringp (nth 2 specific-info))
(true-listp (nth 3 specific-info))))
;; (defun make-INSTANCE-specific-info ()
;; (list 'specific-info 'GENERIC_OBJECT))
(defun wff-GENERIC_OBJECT-specific-info (specific-info)
(equal specific-info
(make-INSTANCE-specific-info)))
(defun wff-specific-info (specific-info)
(or (wff-INSTANCE_CLASS-specific-info specific-info)
(wff-ARRAY_CLASS-specific-info specific-info)
(wff-ARRAY-specific-info specific-info)
(wff-STRING-specific-info specific-info)
(wff-THROWABLE-specific-info specific-info)
(wff-GENERIC_OBJECT-specific-info specific-info)))
;; (defun wff-specific-info (specific-info)
;; (and (true-listp specific-info)
;; (consp specific-info)
;; (equal (car specific-info) 'specific-info)
;; (cond ((equal (nth 1 specific-info) 'ARRAY)
;; (and (equal (len specific-info) 4)
;; (integerp (nth 3 specific-info))
;; (equal (len (nth 2 specific-info)) (nth 3 specific-info))))
;; (t t))))
; (defun make-object (commoninfo specific-info java-visible-part)
; (list 'object commoninfo specific-info java-visible-part))
; (defun common-info (object) (nth 1 object))
; (defun specific-info (object) (nth 2 object)) ;; the format depends on types
; (defun java-visible-portion (object) (nth 3 object))
;; (defun common-info (obj)
;; (declare (xargs :guard (wff-internal-heap-obj obj)))
;; (nth 1 obj))
;; (defun specific-info (obj)
;; (declare (xargs :guard (wff-internal-heap-obj obj)))
;; (nth 2 obj))
;; (defun java-visible-portion (obj)
;; (declare (xargs :guard (wff-internal-heap-obj obj)))
;; (nth 3 obj))
(defun wff-obj-strong (obj)
(and (wff-internal-heap-obj obj)
(wff-common-info-strong (common-info obj))
(wff-specific-info (specific-info obj))
(wff-jvp (java-visible-portion obj))))
;;; WFF data structure.
;----------------------------------------------------------------------
;;; some properties of wff-obj-strong
(defthm wff-obj-strong-implies-wff-obj
(implies (wff-obj-strong obj)
(wff-obj obj))
:hints (("Goal" :in-theory (enable wff-obj-strong))))
(defthm wff-obj-strong-implies-wff-common-info
(implies (wff-obj-strong obj)
(wff-common-info (common-info obj)))
:hints (("Goal" :in-theory (enable wff-obj-strong))))
(in-theory (disable wff-obj wff-common-info common-info))
;----------------------------------------------------------------------
;;; Note this wff-field NEED FIX!!! Tue Jan 13 01:33:56 2004
(defun wff-data-field (field)
(and (consp field)
(equal (len field) 1)))
(defun fieldname (data-field)
(declare (xargs :guard (wff-data-field data-field)))
;; as in a object rep
(car data-field))
(defun fieldvalue (data-field)
(declare (xargs :guard (wff-data-field data-field)))
(cdr data-field))
;; this is part of OBJECT representation!
;;
;;---------------------------------------------------------------------
(defun wff-internal-array (array-obj)
(and (wff-obj-strong array-obj)
(wff-array-type (obj-type array-obj))
(wff-ARRAY-specific-info (specific-info array-obj))))
;----------------------------------------------------------------------
(defun wff-heap (hp)
(alistp hp))
;----------------------------------------------------------------------
(defun wff-heap-strong (hp)
(and (wff-heap hp)
(if (not (consp hp)) t
(and (wff-obj-strong (cdar hp))
(wff-heap-strong (cdr hp))))))
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