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(in-package "JVM")
(include-book "../M6-DJVM-shared/jvm-loader-primitives")
(include-book "../M6-DJVM-shared/jvm-loader-constant-pool-primitives")
(include-book "../M6-DJVM-shared/jvm-loader-inv")
(include-book "ordinals/e0-ordinal" :dir :system)
(set-well-founded-relation e0-ord-<)
;; (acl2::set-verify-guards-eagerness 0) ;; tmp implementation!!
;;
;; Wed Mar 31 14:02:42 2004
;;
(acl2::set-verify-guards-eagerness 2)
; test whethter the instance class of classname is loaded.
(defun class-loaded? (classname s)
(declare (xargs :guard (and (wff-state s)
(wff-class-table (class-table s))
(wff-instance-class-table (instance-class-table s)))))
(isClassTerm (class-by-name classname (instance-class-table s))))
(defun ArrayClassLoaded1? (type l)
(declare (xargs :guard (wff-array-class-table l)))
(array-class-by-name type l))
(defun ArrayClassLoaded? (basetype s)
"Return whether array of such a basetype has been loaded"
(declare (xargs :guard (and (wff-state s)
(wff-class-table (class-table s))
(wff-array-class-table (array-class-table s)))))
(let ((al (array-class-table s)))
(ArrayClassLoaded1? (make-array-type basetype) al)))
;; real loader
;;
;; this method load the class, it will be correct only when the superclasses
;; are loaded, or the class is java.lang.Object, java.lang.String,
;; java.lang.Class.
;;
;; According to the JVM spec, exception should be thrown.
;;
;; However in KVM, fatalError is thrown. Programs that relies on the exception
;; being thrown will terminate.
;;
;; note 1: This file, we included a simplified loader, which doesn't throw exception.
;; instead it throws a fatal exception, which means during loading no exception
;; will be thrown. This is "faithful" to the KVM except KVM doesn't fatalError
;; in less cases, instead it mark ClASS_ERROR in a few cases.
;(i-am-here)
;;
;; this following function blindly load the class of name class-name
;;
(defun build-a-java-visible-instance-guard-strong (s)
(and (wff-state s)
(wff-class-table (class-table s))
(wff-instance-class-table-strong (instance-class-table s))
(wff-env (env s))
(wff-static-class-table-strong (external-class-table s))
(loader-inv s)
(build-a-java-visible-instance-data-guard
(all-class-names (instance-class-table s)) s)))
;;
;; build-a-java-visible-instance-data-guard asserts wff-fields.
;;
;(i-am-here)
(defun load_class2_guard (classname s)
(mylet* ((env (env s))
(class-table (class-table s))
(scl (env-class-table env)))
(and (wff-state s)
(wff-env env)
(wff-heap (heap s))
(wff-class-table class-table)
;(build-a-java-visible-instance-guard-strong s)
;; this asserts every class decl in instance-class-table is well
;; formed (we can build data fields belong to those classes.
;; We also need to to assert that all the super classes are loaded!!
;; but can we assert it here??
;; will I still be able to prove the property? I should.
;; Wed Jun 23 18:38:17 2004
;; Add new assertions about all supers are loaded.
;; Thu Jun 24 14:35:28 2004
(loader-inv s)
(all-correctly-loaded?
(cdr (collect-superclassname classname (external-class-table s)))
(instance-class-table s)
(external-class-table s))
(all-correctly-loaded?
(cdr (collect-superinterface classname (external-class-table s)))
(instance-class-table s)
(external-class-table s))
;;
;; in load_class2, we only need to make sure java.lang.Object and
;; java.lang.Class are loaded. java.lang.String as well.
;;
;; Before we are allowed to call load_class2, we need to assert all
;; super are loaded!!
;; added to assert that classname's super are loaded.
;; (build-a-java-visible-instance-guard-strong s)
(wff-static-class-table scl)
(mv-let (found class-desc)
(class-by-name-s classname scl)
(mylet* ((static-cp (constantpool-s class-desc))
(static-field-table (fields-s class-desc))
(static-method-table (methods-s class-desc)))
(or (not found)
(and (wff-class-rep-static class-desc)
(load_CP_entries_guard static-cp s)
(build-a-java-visible-instance-guard "java.lang.Class" s)
(wff-fields-s static-field-table)
(runtime-method-rep-guards static-method-table))))))))
(in-theory (disable ;; load_CP_entries
wff-class-rep-static
add-instance-class-entry classname-s
make-runtime-class-rep make-class-table
array-class-table wff-state wff-heap
build-a-java-visible-instance-guard
fields-s methods-s interfaces-s))
(defthm wff-heap-implies-alistp
(implies (wff-heap hp)
(alistp hp)))
(defthm wff-heap-implies-alistp-specific
(implies (wff-heap (heap s))
(alistp (heap (mv-nth 1 (load_CP_entries cps s)))))
:hints (("Goal" :in-theory (disable load_CP_entries))))
;(i-am-here)
;; (i-am-here) ;; Sat Nov 6 15:39:57 2004
;; Sun Nov 7 16:02:30 2004
(defthm load-cp-entry-wff-constant-pool
(implies (wff-constant-pool-entry-s cp)
(wff-constant-pool-entry (car (load_cp_entry cp s)))))
(defthm load-cp-entries-wff-constant-pool
(implies (wff-constant-pool-s cp)
(wff-constant-pool (car (load_cp_entries cp s))))
:hints (("Goal" :in-theory (disable wff-constant-pool-entry-s
load_cp_entry
wff-constant-pool-entry))))
(defthm wff-constant-pool-s-implied-by-wff-static-class-table
(implies (and (wff-static-class-table-strong scl)
(car (class-by-name-s classname scl)))
(wff-constant-pool-s
(CDR (NTH 3
(MV-NTH 1
(CLASS-BY-NAME-S CLASSNAME scl)))))))
(defthm wff-constant-pool-s-implied-by-wff-static-class-table-constant-pool
(implies (and (wff-static-class-table-strong scl)
(car (class-by-name-s classname scl)))
(wff-constant-pool-s
(constantpool-s
(MV-NTH 1
(CLASS-BY-NAME-S CLASSNAME scl))))))
(defthm true-listp-load_cp_entries
(true-listp (car (load_cp_entries cp s)))
:hints (("Goal" :in-theory (disable load_cp_entry))))
(defthm len-equal-load-cpentries
(equal (len (car (load_cp_entries cps s)))
(len cps))
:hints (("Goal" :in-theory (disable load_cp_entry))))
(defthm load_cp_entry-no-change-centry-type
(equal (cpentry-type (car (load_cp_entry cp s)))
(cpentry-type-s cp)))
(defthm load_cp_entry-no-change-centry-value
(implies (primitive-type? (cpentry-type-s cp))
(equal (cpentry-value (car (load_cp_entry cp s)))
(cpentry-value-s cp))))
;; (defthm cdr-load_cp_entires-is-load_cp_entries-cdr
;; (equal (cdr (car (load_cp_entries cps s)))
;; (car (load_cp_entries (cdr cps) s)))
;; :hints (("Goal" :in-theory (disable load_cp_entry)
;; :do-not '(generalize))))
;;;
;;; this is not true. because the different of heap object creation order!!
;;;
;; (defthm nth-i-load_cp_entries-is-load_cp_entry_nth
;; (equal (nth i (car (load_cp_entries cps s)))
;; (car (load_cp_entry (nth i cps) s)))
;; :hints (("Goal" :in-theory (disable load_cp_entry)
;; :do-not '(generalize))))
(defthm centry-type-no-change-load_cp_entries
(equal (cpentry-type (nth i (car (load_cp_entries cps s))))
(cpentry-type-s (nth i cps)))
:hints (("Goal" :in-theory (disable load_cp_entry)
:do-not '(generalize))
("Subgoal *1/2.2" :expand (LOAD_CP_ENTRY cps1 S))
("Subgoal *1/2.1" :expand (LOAD_CP_ENTRY (cons cps3 cps4) S))))
(defthm centry-value-no-change-load_cp_entries
(implies (primitive-type? (cpentry-type-s (nth i cps)))
(equal (cpentry-value (nth i (car (load_cp_entries cps s))))
(cpentry-value-s (nth i cps))))
:hints (("Goal" :in-theory (disable
cpentry-value-s
cpentry-value
load_cp_entry primitive-type?)
:do-not '(generalize))
("Subgoal *1/2.2" :expand (LOAD_CP_ENTRY cps1 S))
("Subgoal *1/2.1" :expand (LOAD_CP_ENTRY (cons cps3 cps4) S))))
;; (i-am-here) ;; Wed Nov 10 20:50:15 2004
;; (i-am-here) ;; Thu Jan 5 19:10:13 2006
;; (i-am-here) ;; Thu Jan 5 20:48:00 2006
(defthm wff-static-cp-ok-s-implied-by-wff-static-class-table
(implies (wff-static-cp-ok-s fields-s static-cp)
(wff-static-cp-ok fields-s
(car (load_cp_entries static-cp s))))
:hints (("Goal" :do-not '(generalize)
:in-theory (disable load_cp_entry))))
(defthm wff-static-class-table-strong-and-exists-implies-wff-static-cp-ok-s
(implies (and (wff-static-class-table-strong scl)
(car (class-by-name-s name scl)))
(wff-static-cp-ok-s
(fields-s (mv-nth 1 (class-by-name-s name scl)))
(constantpool-s (mv-nth 1 (class-by-name-s name scl))))))
;; (defthm wff-static-class-table-strong-test
;; (not (wff-static-class-table-strong scl)))
(defun load_class2 (classname s)
(declare (xargs :guard (load_class2_guard classname s)
:guard-hints (("Goal" :in-theory (disable load_CP_entry constantpool-s)))))
(let* ((scl (env-class-table (env s)))
(dcl (instance-class-table s)))
(mv-let
(def-found class-desc)
(class-by-name-s classname scl)
(if (not def-found)
(fatalError "java.lang.ClassNotFoundException" s)
(let ((static-cp (constantpool-s class-desc)))
(mv-let
(dynamic-cp new-state)
(load_CP static-cp s)
(mv-let (the-Class-object new-state2)
(build-an-instanceClass classname new-state)
(let* ((heap-with-strings (heap new-state2))
(new-address (alloc heap-with-strings))
(new-heap (bind new-address the-Class-object
heap-with-strings))
;; new heap
(runtime-class-rep
(make-runtime-class-rep
(classname-s class-desc)
(super-s class-desc)
dynamic-cp
(runtime-instance-fields-rep
(fields-s class-desc) classname)
(runtime-methods-rep
(methods-s class-desc) classname)
(interfaces-s class-desc)
(runtime-static-fields-rep
(fields-s class-desc) classname dynamic-cp)
*class_loaded* ;; -- 2
(accessflags-s class-desc)
-1 ;; indicate the non-init-thread
new-address)) ;; reference to ClassObject in the java heap
(new-dcl (add-instance-class-entry
runtime-class-rep dcl)))
;; using cons instead of using bind.
(prog2$ (acl2::debug-print "class loading ~p0 complete! ~%" classname)
(update-trace new-address
(state-set-heap new-heap
(state-set-class-table
(make-class-table new-dcl
(array-class-table new-state2))
new-state2))))))))))))
;; modified to use primitives of state-set-heap
;; state-set-class-table to hide the fact of state is composed of 7-8 slots
;; (defstub loader-measure (* * *) => *)
;; --- start to prove the admissibility of the mutual recursion -
(defun load-class-x-guard (s seen)
(and (wff-state s)
(wff-env (env s))
(wff-static-class-table
(env-class-table (env s)))
(true-listp seen)))
(defun unloaded-class-count (s seen)
(declare (xargs :guard (load-class-x-guard s seen)))
(let ((cl (env-class-table (env s))))
(+ 1 (len (set-diff (all-class-names-s cl) seen)))))
(defun loader-measure (stage s seen)
(declare (xargs :guard (load-class-x-guard s seen)))
(cons (cons (unloaded-class-count s seen) 0) stage))
(defun load_class_1-inv (classname s seen)
(declare (xargs :guard (load-class-x-guard s seen)))
(and (not (mem classname seen))
(mem classname (all-class-names-s (env-class-table (env s))))))
(defun load_class_2-inv (classname s seen)
(declare (xargs :guard (load-class-x-guard s seen)))
(and (not (mem classname seen))
(mem classname (all-class-names-s (env-class-table (env s))))))
(defun trivial-inv-env-do-not-change (s1 s2)
(declare (xargs :guard (and (wff-state s1)
(wff-state s2))))
(equal (env s1) (env s2)))
(in-theory (disable class-loaded? env env-class-table no-fatal-error? load_class2))
(defun induct-measure (p s seen mode)
(declare (xargs :guard (load-class-x-guard s seen)))
(cond ((equal mode 3) (loader-measure 3 s seen))
((equal mode 2) (loader-measure 2 s seen))
((equal mode 1) (loader-measure 1 s seen))
((equal mode 0) (loader-measure (+ 4 (len p)) s seen))
(t 0)))
(acl2::set-verify-guards-eagerness 0)
(defun load_class_x (p s seen mode)
(declare (xargs :measure (induct-measure p s seen mode)
:guard (and (loader-inv s)
(wff-heap (heap s))
(class-loaded? "java.lang.Object" s)
(class-loaded? "java.lang.Class" s)
(true-listp seen))))
;; we may be able to write stronger guards
;; but loader-inv is only necessary.
(let ((classname p)
(interfaces p))
(if (not (no-fatal-error? s))
s
(cond ((equal mode 3)
(prog2$ (acl2::debug-print " load request ~p0 received!~%" classname)
(if (class-loaded? classname s)
(prog2$ (acl2::debug-print "class ~p0 already loaded!~%" classname)
s)
(if (mem classname seen)
(fatalError "java.lang.ClassCircularityError" s);; ref to note 1
(mv-let
(def-found class-desc)
(class-by-name-s classname (external-class-table s))
(declare (ignore class-desc))
(if (not def-found)
(fatalError "java.lang.ClassNotFoundException" s);; note 1
(let ((s1 (load_class_x classname s seen 2)))
(if (not (trivial-inv-env-do-not-change s1 s))
(fatalError "load_class_1 violate internal inv" s1)
(if (no-fatal-error? s1)
(let ((s2 (load_class_x classname s1 seen 1)))
(if (no-fatal-error? s2)
(load_class2 classname s2)
s2))
s1)))))))))
((equal mode 2)
(if (not (load_class_1-inv classname s seen))
(fatalError "load_class_1 violate internal inv" s)
(mv-let
(def-found class-desc)
(class-by-name-s classname (external-class-table s))
(declare (ignore def-found))
(let* ((supername (super-s class-desc))
(new-state (load_class_x supername s (cons classname seen) 3)))
new-state))))
((equal mode 1)
(if (not (load_class_2-inv classname s seen))
(fatalError "load_class_2 violate internal inv" s)
(mv-let (def-found static-class-rep)
(class-by-name-s classname (external-class-table s))
(declare (ignore def-found))
(let ((interfaces (interfaces-s static-class-rep)))
(load_class_x interfaces s (cons classname seen) 0)))))
((equal mode 0)
(if (not (consp interfaces))
s
;; assuming no array
;; doesn't check whether a class implments a class, instead of an
;; interfaces. ;; don't check access
(if (no-fatal-error? s)
(if (mem (car interfaces) seen)
(fatalError "interface circularity" s)
(if (class-loaded? (car interfaces) s)
(let ((class-rep (class-by-name (car interfaces)
(instance-class-table s))))
(if (not (isInterface class-rep))
(fatalError "here class implements non interfaces" s)
(load_class_x (cdr interfaces) s seen 0)))
(let* ((new-s (load_class_x (car interfaces) s seen 3))
(class-rep (class-by-name (car interfaces)
(instance-class-table new-s))))
(if (not (trivial-inv-env-do-not-change new-s s))
(fatalError "load_class_1 violate internal inv" new-s)
(if (no-fatal-error? new-s)
(if (not (isInterface class-rep))
(fatalError "class implements non interfaces" new-s)
(load_class_x (cdr interfaces) new-s seen 0))
new-s)))))
s)))
(t s)))))
;;
;; move guard verification to the later Guard verification relies on a
;; load_class_x perserve certain invariant on the class-table!! which is
;; not easy to do guard verification before the function is admitted!!
;; Tue Apr 6 20:55:22 2004
;;
;;
;; set the current thread to -1 to indicate the loading is done by JVM
;; the obj created belongs to all threads.
;;
(acl2::set-verify-guards-eagerness 2)
(defun load_class-guard (s)
(and (loader-inv s)
(wff-heap (heap s))
(class-loaded? "java.lang.Object" s)
(class-loaded? "java.lang.Class" s)))
;;(verify-guards load_class-guard)
(acl2::set-verify-guards-eagerness 0)
(defun load_class (classname s)
(declare (xargs :guard (load_class-guard s)))
(let ((th (current-thread s))
(s1 (state-set-current-thread -1 s)))
(state-set-current-thread th (load_class_x classname s1 nil 3))))
(acl2::set-verify-guards-eagerness 2)
;; inferring the accessflags for array classes
(defun gen-access-flags-guard (base-type s)
(and (wff-state s)
(wff-class-table (class-table s))
;; why I need the following??
(if (array-type? base-type)
(and (wff-array-class-table (array-class-table s))
(wff-array-class-table-rep
(array-class-by-name base-type
(array-class-table s))))
(if (primitive-type? base-type) t
(and (wff-instance-class-table
(instance-class-table s))
(wff-class-rep (class-by-name base-type
(instance-class-table s))))))))
(defun gen-access-flags (base-type S);; assume the base-type is loaded
(declare (xargs :guard (gen-access-flags-guard base-type s)
:guard-hints (("Goal" :in-theory (disable array-type?)))))
(if (array-type? base-type)
(let* ((array-class-rep
(array-class-by-name base-type
(array-class-table S)))
(access-flags (array-access-flags array-class-rep)))
(if (mem '*public* access-flags)
(make-accessflags '(*final* *abstract* *array_class* *public*))
(make-accessflags '(*final* *abstract* *array_class*))))
(if (primitive-type? base-type)
(make-accessflags '(*final* *abstract* *array_class* *public*))
;; has to be instance-class
(let* ((instance-class-rep
(class-by-name base-type (instance-class-table S)))
(access-flags (class-accessflags instance-class-rep)))
(if (mem '*public* access-flags)
(make-accessflags '(*final* *abstract* *array_class* *public*))
(make-accessflags '(*final* *abstract* *array_class*)))))))
;;;; ACCESS TO THE ARRAY CLASS IS DEFINED BY CHECKING THE ACCESS TO THE BASE
;;;; TYPE!!
;; this load_array_clas2 doesn't test wether this (array base) type exist or
;; not. always build an instanceClass object that represent the class.
;; simplify the getArrayClass
;; We assume that the base class is loaded already but (array base-class)
;; haven't be loaded.
;;
;; the shape of an entry in the array class table:
;;
;; (array-type access-flags the-class-obj-ref)
;;
;;
;;
;; (defun array-base-types (type)
;; (if (array-type? type)
;; (cons type (array-base-types (array-base-type type)))
;; type))
;;
;; (defun all-array-class-loaded (
(defun base-types (type)
(if (array-type? type)
(cons type (base-types (array-base-type type)))
(list type)))
(defun array-class-correctly-loaded? (types s)
(declare (xargs :guard (and (wff-state s)
(wff-class-table (class-table s))
(wff-instance-class-table (instance-class-table s))
(wff-array-class-table (array-class-table s)))))
(if (not (consp types)) t
(and (if (array-type? (car types))
(ArrayClassLoaded? (array-base-type (car types)) s)
(if (primitive-type? (car types)) t
(class-loaded? (car types) s)))
(array-class-correctly-loaded? (cdr types) s))))
(defun array-class-table-inv-helper (l s)
(declare (xargs :guard (and (wff-state s)
(wff-class-table (class-table s))
(wff-instance-class-table (instance-class-table s))
(wff-array-class-table (array-class-table s)))))
(if (not (consp l)) t
(and (array-type? (car l))
(array-class-correctly-loaded? (base-types (car l)) s)
(array-class-table-inv-helper (cdr l) s))))
(defun all-array-sigs (l)
(declare (xargs :guard (wff-array-class-table l)))
(if (not (consp l)) nil
(cons (array-sig (car l))
(all-array-sigs (cdr l)))))
(defun load_array_class2-guard (base-type s)
(and (build-a-java-visible-instance-guard "java.lang.Class" s)
(wff-state s)
(wff-heap (heap s))
(or (not (array-type? base-type))
(gen-access-flags-guard (array-base-type base-type) s))
(wff-class-table (class-table s))
(wff-instance-class-table (instance-class-table s))
(wff-array-class-table (array-class-table s))
(not (ArrayClassLoaded? base-type s))
(array-class-table-inv-helper (all-array-sigs (array-class-table s)) s)
;; only called when base-type is not loaded!
(if (array-type? base-type)
(ArrayClassLoaded? (array-base-type base-type) s)
;; all base type must be loaded!!
(if (primitive-type? base-type)
t
(class-loaded? base-type s)))))
;; (defun load_array_class2-guard (base-type s)
;; (and (build-a-java-visible-instance-guard "java.lang.Class" s)
;; (wff-state s)
;; (wff-heap (heap s))
;; (or (not (array-type? base-type))
;; (gen-access-flags-guard (array-base-type base-type) s))
;; (wff-class-table (class-table s))
;; (wff-instance-class-table (instance-class-table s))
;; (wff-array-class-table (array-class-table s))
;; (not (ArrayClassLoaded? base-type s))
;; ;; only called when base-type is not loaded!
;; (if (array-type? base-type)
;; (and (ArrayClassLoaded? (array-base-type base-type) s)
;; (array-class-table-inv-helper (base-types (array-base-type
;; base-type))
;; s))
;; ;; all base type must be loaded!!
;; (if (primitive-type? base-type)
;; t
;; (class-loaded? base-type s)))))
(acl2::set-verify-guards-eagerness 0)
(defun load_array_class2 (base-type S)
(declare (xargs :guard (load_array_class2-guard base-type s)))
(mv-let (array-class-rep-obj new-S)
(build-instanceClassArrayClass base-type S)
(let* ((heap (heap new-S))
(new-addr (alloc heap))
(new-heap (bind new-addr array-class-rep-obj heap))
(access-flags (gen-access-flags base-type S))
(array-class-rep
(make-array-class-table-entry base-type access-flags new-addr))
(old-array-class-table (array-class-table S))
(new-array-class-table
(add-array-class-table-entry array-class-rep
old-array-class-table)))
(state-set-array-class-table new-array-class-table
(update-trace new-addr (state-set-heap
new-heap
new-s))))))
;;; this create a class-rep that reps `(array ,base-type)
;;;
;; what if the base class doesn't exist? We can make the guard to say the base
;; type is loaded! So far it is not. FIXED! Tue Apr 6 21:12:39 2004
;;
;; this loader will load the base array class. (different from the original loader).
;;
;; (acl2::set-verify-guards-eagerness 2)
;; (defun all-array-sigs (l)
;; (declare (xargs :guard (wff-array-class-table l)))
;; (if (not (consp l)) nil
;; (cons (array-sig (car l))
;; (all-array-sigs (cdr l)))))
(acl2::set-verify-guards-eagerness 2)
(defun load_array_class_guard (s)
(and (load_class-guard s)
(build-a-java-visible-instance-guard "java.lang.Class" s)
(wff-array-class-table (array-class-table s))
(wff-instance-class-table (instance-class-table s))
(wff-env (env s))
(wff-static-class-table (external-class-table s))
(array-class-table-inv-helper (all-array-sigs (array-class-table s)) s)))
;(acl2::set-verify-guards-eagerness 0)
;(i-am-here)
(acl2::set-verify-guards-eagerness 0)
(defun load_array_class (base-type S)
(declare (xargs :guard (load_array_class_guard s)))
(if (not (no-fatal-error? s))
s
(if (ArrayClassLoaded? base-type S)
s
(if (array-type? base-type)
(let ((s1 (load_array_class
(array-base-type base-type) S)))
(if (not (no-fatal-error? s1))
s1
(load_array_class2 base-type s1)))
(if (primitive-type? base-type)
(load_array_class2 base-type s)
(if (class-loaded? base-type S)
(load_array_class2 base-type S)
(let ((s1 (load_class base-type s)))
(if (not (no-fatal-error? s1))
s1
(load_array_class2 base-type s1)))))))))
(acl2::set-verify-guards-eagerness 2)
;; (defun gen-access-flags-guard (base-type s)
;; (and (wff-state s)
;; (wff-class-table (class-table s))
;; (if (array-type? base-type)
;; (and (wff-array-class-table (array-class-table s))
;; (wff-array-class-table-rep
;; (array-class-by-name base-type
;; (array-class-table s))))
;; (if (primitive-type? base-type) t
;; (and (wff-instance-class-table
;; (instance-class-table s))
;; (wff-class-rep (class-by-name base-type
;; (instance-class-table s))))))))
;;
;;
;; (defun primitive-types (primitive-types)
;; (if (not (consp primitive-types)) t
;; (and (primitive-type? (car primitive-types))
;; (primitive-types (cdr primitive-types))))
;;
;;
(defun load_primitive_array_classes-guard (types s)
(if (not (consp types)) t
(and (load_array_class2-guard (car types) s)
(load_primitive_array_classes-guard (cdr types) s))))
(acl2::set-verify-guards-eagerness 0)
(defun load_primitive_array_classes (primitive-types s)
(declare (xargs :guard (load_primitive_array_classes-guard primitive-types s)))
(if (not (consp primitive-types))
s
(load_primitive_array_classes (cdr primitive-types)
(load_array_class2 (car primitive-types) s))))
;-------------------------------
;; The interface that the other part of the system will use more often.
(defun getClass (classname s)
(declare (xargs :guard (load_class-guard s)))
(if (class-loaded? classname s)
s
(load_class classname s)))
(defun getArrayClass11 (basetype S)
(declare (xargs :guard (load_array_class_guard s)))
(load_array_class basetype S))
(defun getArrayClass (basetype S)
(declare (xargs :guard (load_array_class_guard s)))
(if (ArrayClassLoaded? basetype s)
s
(load_array_class basetype S)))
;------------------------------
(defun load-JavaSystemClasses (s)
(let* ((th (current-thread s))
(s0 (state-set-current-thread -1 s))
(s1 (load_class2 "java.lang.Object" s0))
(s2 (load_class2 "java.lang.Class" s1))
(s3 (load_class2 "java.lang.String" s2))
(s4 (load_primitive_array_classes *primitive-types* s3))
(s5 (load_class "java.lang.System" s4))
(s6 (load_class "java.lang.Thread" s5))
(s7 (load_class "java.lang.Throwable" s6))
(s8 (load_class "java.lang.Error" s7))
(s9 (state-set-current-thread th s8)))
s9))
;;; Wed Mar 31 21:53:47 2004. this may never guard verify because
;;; load_class2 need a guard saying "java.lang.Object" exists
(defun load_classes (nl s)
(declare (xargs :guard (load_class-guard s)))
(if (not (consp nl))
s
(load_class (car nl)
(load_classes (cdr nl) s))))
;------------ class loader property --------------------
(defun class-exists-externally? (from cl)
(declare (xargs :guard (wff-static-class-table cl)))
(mem from (all-class-names-s cl)))
(defthm fatalError-no-fatal-error?
(implies (stringp msg)
(not (no-fatal-error? (fatalError msg s))))
:hints (("Goal" :in-theory (enable no-fatal-error?))))
(in-theory (disable instance-class-table isInterface super-s))
(defthm load_cp_entry_only_change_class_table_error_flag_heap
(let ((s1 (mv-nth 1 (load_cp_entry cp s0))))
(and (equal (pc s1) (pc s0))
(equal (current-thread s1) (current-thread s0))
(equal (thread-table s1) (thread-table s0))
(equal (env s1) (env s0)))))
(in-theory (disable load_cp_entry))
;; these theorems are not good. Thu Jun 24 12:01:56 2004
(defthm load_cp_entries_only_change_class_table_error_flag_heap
(let ((s1 (mv-nth 1 (load_cp_entries cps s0))))
(and (equal (pc s1) (pc s0))
(equal (current-thread s1) (current-thread s0))
(equal (thread-table s1) (thread-table s0))
(equal (env s1) (env s0)))))
(defthm load_class2_only_change_class_table_error_flag_heap
(let ((s1 (load_class2 n s0)))
(and (equal (pc s1) (pc s0))
(equal (current-thread s1) (current-thread s0))
(equal (thread-table s1) (thread-table s0))
(equal (env s1) (env s0))))
:hints (("Goal" :in-theory (enable load_class2))))
(defthm load_class_x_only_change_class_table_error_flag_heap
(implies (or (equal mode 3)
(equal mode 2)
(equal mode 1)
(equal mode 0))
(let ((s1 (load_class_x p s0 seen mode)))
(and (equal (pc s1) (pc s0))
(equal (current-thread s1) (current-thread s0))
(equal (thread-table s1) (thread-table s0))
(equal (env s1) (env s0))))))
;; acl2 generates an good enough induction hint.
;; :hints (("Goal" :induct (loader-induct n_or_ifaces s0 seen mode))))
(defthm load_class_only_change_class_table_error_flag_heap
(let ((s1 (load_class classname s0)))
(and (equal (pc s1) (pc s0))
(equal (current-thread s1) (current-thread s0))
(equal (thread-table s1) (thread-table s0))
(equal (env s1) (env s0))
)));; need to find the measure for admit the load_class
;; where I need this? it's a nice property that worth proving though.
;; to admin is superclass
(defun classes-exists-externally? (ifaces cl)
(if (endp ifaces)
t
(and (class-exists-externally? (car ifaces) cl)
(classes-exists-externally? (cdr ifaces) cl))))
(in-theory (disable isInterface))
#|
;; this is not true
(defthm no-fatal-error?-after-load-class-x-implies-class-exists-externally
(and (implies (or (equal mode 1)
(equal mode 2)
(equal mode 3))
(implies (no-fatal-error? (load_class_x p s seen mode))
(class-exists-externally? p (env-class-table (env s)))))
(implies (equal mode 0)
(implies (no-fatal-error? (load_class_x p s seen mode))
(classes-exists-externally? p (env-class-table (env s)))))))
|#
(defun all-not-loaded? (classes seen s)
(if (endp classes)
nil
(and (not (class-loaded? (car classes) s))
(all-not-loaded? (cdr classes) (cons (car classes) seen)
(load_class_x (car classes) s seen 3)))))
(in-theory (disable fatalError))
;; this is true
(defthm no-fatal-error?-after-load-class-x-implies-class-exists-externally
(and (implies (or (equal mode 1)
(equal mode 2)
(equal mode 3))
(implies (and (no-fatal-error? (load_class_x p s seen mode))
(not (class-loaded? p s)))
(class-exists-externally? p (env-class-table (env s)))))
(implies (equal mode 0)
(implies (and (no-fatal-error? (load_class_x p s seen mode))
(all-not-loaded? p seen s))
(classes-exists-externally? p (env-class-table (env s))))))
:hints (("Goal" :induct (load_class_x p s seen mode))))
;; Sun Jun 20 01:57:34 2004
; >V d (DEFUN MAKE-STATE
; (IP CUR JAVAHEAP THREAD-TABLE
; INTERNAL-CLASS-TABLE ENV ERROR-FLAG AUX)
; (LIST 'STATE
; IP CUR (CONS 'HEAP JAVAHEAP)
; (CONS 'THREAD-TABLE THREAD-TABLE)
; INTERNAL-CLASS-TABLE
; ENV ERROR-FLAG AUX))
; JVM !>
;(i-am-here)
;; (i-am-here) ;;; Fri Oct 29 17:50:48 2004
;;
;; modification to get assert heap-init-map
;; heap-init-map
(defun equiv-aux (aux1 aux2)
(equal (heap-init-map aux1)
(heap-init-map aux2)))
(defequiv equiv-aux)
(defcong equiv-aux equal (heap-init-map aux) 1)
(defcong equiv-aux equiv-aux (aux-set-trace trace aux) 2)
(defthm equiv-aux-aux-set-any
(equiv-aux (aux-set-trace any aux)
aux))
;;; the equiv-aux is added?? !!
;;; Fri Nov 5 13:43:01 2004
(defun equiv-state-except-thread-and-trace (s1 s2)
(and ;(equal (pc s1) (pc s2))
;(equal (thread-table s1) (thread-table s2))
(equal (heap s1) (heap s2))
(equal (class-table s1) (class-table s2))
(equal (env s1) (env s2))
(equal (error-flag s1) (error-flag s2))
(equiv-aux (aux s1) (aux s2))))
(defequiv equiv-state-except-thread-and-trace)
(defun equiv-tuple-load (tuple1 tuple2)
(and (equal (mv-nth 0 tuple1)
(mv-nth 0 tuple2))
(equiv-state-except-thread-and-trace (mv-nth 1 tuple1)
(mv-nth 1 tuple2))))
(defun slot1-tuple-load (tuple)
(mv-nth 0 tuple))
(defun slot2-tuple-load (tuple)
(mv-nth 1 tuple))
;(i-am-here)
(defequiv equiv-tuple-load)
(defcong equiv-state-except-thread-and-trace equiv-tuple-load
(load_cp_entry cp s) 2
:hints (("Goal" :in-theory (enable load_cp_entry))))
(local (defthm mv-to-slot
(and (equal (mv-nth 0 tuple)
(slot1-tuple-load tuple))
(equal (mv-nth 1 tuple)
(slot2-tuple-load tuple)))))
(in-theory (disable slot2-tuple-load slot1-tuple-load))
(defcong equiv-tuple-load equiv-state-except-thread-and-trace
(slot2-tuple-load tuple) 1)
(defcong equiv-tuple-load equal
(slot1-tuple-load tuple) 1)
;(defcong equiv-state-except-thread-and-trace equal (pc s) 1)
;(defcong equiv-state-except-thread-and-trace equal (thread-table s) 1)
(defcong equiv-state-except-thread-and-trace equal (class-table s) 1)
(defcong equiv-state-except-thread-and-trace equal (heap s) 1)
(defcong equiv-state-except-thread-and-trace equal (error-flag s) 1)
(defcong equiv-state-except-thread-and-trace equal (env s) 1)
(defcong equiv-state-except-thread-and-trace equiv-aux (aux s) 1)
(in-theory (disable equiv-state-except-thread-and-trace equiv-aux aux-set-trace))
;; (skip-proofs
;; (defcong equiv-state-except-thread-and-trace equiv-tuple-load
;; (load_cp_entry cp s) 2
;; :hints (("Goal" :in-theory (disable
;; equiv-state-except-thread-and-trace)))))
;; (defcong equiv-state-except-thread-and-trace equiv-tuple-load
;; (load_cp_entry cp s) 2
;; :hints (("Goal" :in-theory (disable equiv-state-except-thread-and-trace)))))
(defcong equiv-state-except-thread-and-trace equiv-tuple-load
(load_cp_entries cps s) 2
:hints (("Goal" :in-theory (disable equiv-state-except-thread-and-trace))))
;(i-am-here)
(in-theory (disable equiv-tuple-load))
; >V d (DEFUN MAKE-STATE
; (IP CUR JAVAHEAP THREAD-TABLE
; INTERNAL-CLASS-TABLE ENV ERROR-FLAG AUX)
; (LIST 'STATE
; IP CUR (CONS 'HEAP JAVAHEAP)
; (CONS 'THREAD-TABLE THREAD-TABLE)
; INTERNAL-CLASS-TABLE
; ENV ERROR-FLAG AUX))
;; may be need to write a marco to simulate the named fields
;; this is easily looping!!
; (defthm equiv-state-except-thread-and-trace-make-state
; (equiv-state-except-thread-and-trace
; (make-state pc
; anyth1
; hp
; tt
; cl
; env
; ef
; anyaux1)
; (make-state pc
; anyth2
; hp
; tt
; cl
; env
; ef
; anyaux2))
; :hints (("Goal" :in-theory (enable equiv-state-except-thread-and-trace))))
(defthm equiv-state-except-thread-and-trace-make-state
(implies (equiv-aux anyaux1 anyaux2)
(equal (equiv-state-except-thread-and-trace
(make-state anypc1
anyth1
hp
anytt1
cl
env
ef
anyaux1)
(make-state anypc2
anyth2
hp
anytt2
cl
env
ef
anyaux2)) t))
:hints (("Goal" :in-theory (enable equiv-state-except-thread-and-trace))))
;; Sun Jun 20 00:00:42 2004. We want to prove the following. We can prove
;; stronger properties. We will prove no-fatal-error earlier.
(defcong equiv-state-except-thread-and-trace
equiv-state-except-thread-and-trace
(fatalError any s) 2
:hints (("Goal" :in-theory (enable equiv-state-except-thread-and-trace
fatalError))))
(defcong equiv-state-except-thread-and-trace equiv-tuple-load
(build-an-instanceClass c s) 2
:hints (("Goal" :in-theory (e/d (equiv-tuple-load slot1-tuple-load)
(mv-to-slot
equiv-state-except-thread-and-trace)))))
;; (defcong equiv-state-except-thread-and-trace equiv-tuple-load
;; (build-an-instanceClass c s) 2
;; :hints (("Goal" :in-theory (e/d (equiv-tuple-load slot1-tuple-load)
;; (mv-to-slot
;; equiv-state-except-thread-and-trace)))))
(defcong equiv-state-except-thread-and-trace equal
(instance-class-table s) 1
:hints (("Goal" :in-theory (e/d (instance-class-table) ()))))
(defcong equiv-state-except-thread-and-trace equal
(array-class-table s) 1
:hints (("Goal" :in-theory (e/d (array-class-table) ()))))
;; (defcong equiv-state-except-thread-and-trace equiv-tuple-load
;; (load_cp_entry any s) 2
;; :hints (("Goal" :in-theory (e/d (load_cp_entry) (equiv-aux heap-init-map)))))
;; (defthm equal-mv-nth-1-slot-2-is
;; (equal (mv-nth 1 (load_cp_entries cps s))
;; (slot2-tuple-load (load_cp_entries cps s)))
;; :hints (("Goal" :in-theory (enable slot2-tuple-load))))
;; (defthm heap-init-map-aux-mv-nth-is
;; (equal (heap-init-map (aux (mv-nth 1 (load_cp_entries any s))))
;; (heap-init-map (aux (slot2-tuple-load (load_cp_entries any s))))))
(defthm equiv-aux-aux-set-trace-rewrite
(and (equal (equiv-aux (aux-set-trace any aux1) aux2)
(equiv-aux aux1 aux2))
(equal (equiv-aux aux1 (aux-set-trace any aux2))
(equiv-aux aux1 aux2))))
(in-theory (disable aux))
(defthm equiv-aux-equiv-state
(implies (equiv-state-except-thread-and-trace s-equiv s)
(equal (EQUIV-AUX
(AUX
(SLOT2-TUPLE-LOAD
(BUILD-AN-INSTANCECLASS
P
(SLOT2-TUPLE-LOAD
(LOAD_CP_ENTRIES
cps
S)))))
(AUX
(SLOT2-TUPLE-LOAD
(BUILD-AN-INSTANCECLASS
P
(SLOT2-TUPLE-LOAD
(LOAD_CP_ENTRIES
cps
S-EQUIV)))))) t))
:hints (("Goal" :in-theory (disable build-an-instanceclass))))
;;;
;;; Fri Oct 29 19:27:03 2004.
;;;
;;; Backward chaining!! strange!! backward-chaing vs. cong reasoning.
;;;
(defcong equiv-state-except-thread-and-trace equiv-state-except-thread-and-trace
(load_class2 p s) 2
:hints (("Goal" :in-theory (e/d (load_class2)
(build-an-instanceClass)))))
; (defthm fatalerror-equiv-state-state
; (EQUIV-STATE-EXCEPT-THREAD-AND-TRACE
; (FATALERROR any S) s)
; :hints (("Goal" :in-theory (enable equiv-state-except-thread-and-trace fatalerror))))
(defcong equiv-state-except-thread-and-trace equal
(no-fatal-error? s) 1
:hints (("Goal" :in-theory (e/d (no-fatal-error?) ()))))
(defun load_class_x_induct (p s s-equiv seen mode)
(declare (xargs :measure (induct-measure p s seen mode)
:guard (and (loader-inv s)
(loader-inv s-equiv))))
(let ((classname p)
(interfaces p))
(if (not (no-fatal-error? s))
s
(cond ((equal mode 3)
(prog2$ (acl2::debug-print " load request ~p0 received!~%"
classname)
(cond ((class-loaded? classname s)
(list p s s-equiv seen mode))
((class-loaded? classname s-equiv)
(list p s s-equiv seen mode))
((mem classname seen)
(list p s s-equiv seen mode))
(t (mv-let (def-found1 class-desc1)
(class-by-name-s classname
(external-class-table s))
(declare (ignore class-desc1))
(mv-let (def-found2 class-desc2)
(class-by-name-s classname
(external-class-table s-equiv))
(declare (ignore class-desc2))
(cond ((not def-found1)
(list p s s-equiv seen
mode))
((not def-found2)
(list p s s-equiv seen
mode))
(t (let ((s1 (load_class_x
classname s seen
2))
(s1-equiv (load_class_x
classname
s-equiv seen
2)))
(cond ((not
(trivial-inv-env-do-not-change s1 s))
(load_class_x_induct
classname s s-equiv
seen
2))
((not
(trivial-inv-env-do-not-change s1-equiv s))
(load_class_x_induct
classname s s-equiv
seen 2))
(t
(cond
((not (no-fatal-error? s1))
(load_class_x_induct
classname s s-equiv
seen 2))
((not (no-fatal-error? s1-equiv))
(load_class_x_induct
classname s s-equiv
seen 2))
(t
(list
(load_class_x_induct
classname s s-equiv
seen 2)
(load_class_x_induct
classname s1
s1-equiv seen 1)))))))))))))))
((equal mode 2)
(cond ((not (load_class_1-inv classname s seen))
(list p s s-equiv seen mode))
((not (load_class_1-inv classname s-equiv seen))
(list p s s-equiv seen mode))
(t (mv-let (def-found1 class-desc1)
(class-by-name-s classname
(external-class-table s))
(declare (ignore def-found1))
(mv-let (def-found2 class-desc2)
(class-by-name-s classname
(external-class-table s-equiv))
(declare (ignore def-found2))
(let ((supername1 (super-s class-desc1))
(supername2 (super-s class-desc2)))
(cond ((not (equal supername1 supername2))
(list p s s-equiv seen mode))
(t (load_class_x_induct supername1 s s-equiv
(cons classname
seen)
3)))))))))
((equal mode 1)
(cond ((not (load_class_2-inv classname s seen))
(list p s s-equiv seen mode))
((not (load_class_2-inv classname s-equiv seen))
(list p s s-equiv seen mode))
(t (mv-let (def-found1 class-desc1)
(class-by-name-s classname
(external-class-table s))
(declare (ignore def-found1))
(mv-let (def-found2 class-desc2)
(class-by-name-s classname
(external-class-table s-equiv))
(declare (ignore def-found2))
(let ((interfaces1 (interfaces-s class-desc1))
(interfaces2 (interfaces-s class-desc2)))
(cond ((not (equal interfaces2 interfaces1))
(list p s s-equiv seen mode))
(t
(load_class_x_induct interfaces1 s s-equiv
(cons classname seen) 0)))))))))
((equal mode 0)
(cond ((not (consp interfaces))
(list p s s-equiv seen mode))
((not (no-fatal-error? s))
(list p s s-equiv seen mode))
((not (no-fatal-error? s-equiv))
(list p s s-equiv seen mode))
(t (cond ((mem (car interfaces) seen)
(list p s s-equiv seen mode))
((and (class-loaded? (car interfaces) s)
(class-loaded? (car interfaces) s-equiv))
;; I could add test of whether isInterface class-rep
;; Sun Jun 20 18:07:50 2004
(load_class_x_induct (cdr interfaces) s s-equiv seen
0))
((and (not (class-loaded? (car interfaces) s))
(not (class-loaded? (car interfaces) s-equiv)))
(let ((new-s (load_class_x (car interfaces) s seen 3))
(new-s-equiv (load_class_x (car interfaces)
s-equiv seen 3)))
(cond ((not (trivial-inv-env-do-not-change new-s
s))
(load_class_x_induct (car interfaces)
s s-equiv
seen 3))
((not (trivial-inv-env-do-not-change
new-s-equiv s-equiv))
(load_class_x_induct (car interfaces)
s s-equiv
seen 3))
(t (cond ((not (no-fatal-error? new-s))
(load_class_x_induct (car interfaces)
s s-equiv
seen 3))
((not (no-fatal-error? new-s-equiv))
(load_class_x_induct (car interfaces)
s s-equiv
seen 3))
(t (list (load_class_x_induct (car
interfaces)
s
s-equiv
seen
3)
(load_class_x_induct (cdr
interfaces)
new-s
new-s-equiv
seen
0))))))))))))
(t s)))))
(defcong equiv-state-except-thread-and-trace equal (class-loaded? p s) 2
:hints (("Goal" :in-theory (enable class-loaded?))))
(defcong equiv-state-except-thread-and-trace equiv-state-except-thread-and-trace
(load_class_x p s seen mode) 2
:hints (("Goal" :do-not '(generalize fertilize)
:induct (load_class_x_induct p s s-equiv seen mode))))
; (skip-proofs
; (defthm error-flag-set-thread-load_class_x
; (equal (error-flag (load_class_x p (state-set-current-thread th s)
; seen mode))
; (error-flag (load_class_x p s seen mode)))
; :hints (("Goal" :do-not '(generalize)
; :in-theory (disable state-set-current-thread)))))
(defthm equiv-state-except-thread-and-trace-set-current-thread
(equiv-state-except-thread-and-trace (state-set-current-thread th s)
s)
:hints (("Goal" :in-theory (enable equiv-state-except-thread-and-trace))))
(in-theory (disable state-set-current-thread))
(defthm no-fatal-error-set-thread-load_class_x
(equal (no-fatal-error? (load_class_x p (state-set-current-thread th s)
seen mode))
(no-fatal-error? (load_class_x p s seen mode))))
(defthm no-fatal-error?-after-load-implies-class-exists-externally
(implies (and (no-fatal-error? (load_class fromClass s))
(not (class-loaded? fromClass s)))
(class-exists-externally? fromClass
(env-class-table (env s))))
:hints (("Goal"
:in-theory (disable load_class_x state-set-current-thread
no-fatal-error?-after-load-class-x-implies-class-exists-externally
class-exists-externally?)
:use
((:instance
no-fatal-error?-after-load-class-x-implies-class-exists-externally
(mode 3) (p fromClass) (seen nil))))))
;;;
;----------------------------------------------------------------------
;;;
;;; properties for
;;;
(acl2::set-verify-guards-eagerness 2)
(local (in-theory (disable mv-to-slot)))
(defthm wff-state-load_class2
(implies (wff-state s)
(wff-state (load_class2 classname s)))
:hints (("Goal" :in-theory (e/d (load_class2 fatalError) (load_cp_entry)))))
(defthm wff-state-load_class_x
(implies (wff-state s)
(wff-state (load_class_x p s seen mode)))
:hints (("Goal" :in-theory (e/d (fatalError) ()))))
;; (defthm load_class_guard-strong-l-implies-wff-statici-class-rep
;; (implies (and (load_class2_guard-strong1 l s)
;; (mv-let (found class-desc)
;; (class-by-name-s classname l)
;; (declare (ignore class-desc))
;; found))
;; (wff-class-rep-static class-desc))
(defthm wff-static-class-table-found-implies-wff-static-class-rep
(mv-let (found class-desc)
(class-by-name-s classname l)
(implies (and (wff-static-class-table l)
found)
(wff-class-rep-static class-desc))))
(defthm wff-static-class-table-member-all-names-implies
(mv-let (found class-desc)
(class-by-name-s p l)
(declare (ignore found))
(implies (and (mem p (all-class-names-s l))
(wff-static-class-table l))
(wff-class-rep-static class-desc))))
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