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(in-package "M6")
(include-book "../M6/m6-type-value")
(include-book "../M6/m6-class-table")
(include-book "../M6/m6-state")
(include-book "../M6/m6-class-hierachy-aux")
(include-book "../M6/m6-obj")
(include-book "../M6/m6-thread")
(include-book "../M6/m6-frame-manipulation-primitives")
(acl2::set-verify-guards-eagerness 0)
;;; still problematic!! guard verification!!
;-------------------------------------------------
; Primitives for building an java-visible-portion
;-------------------------------------------------
;; (defun array-type? (type-sig)
;; (and (true-listp type-sig)
;; (equal (length type-sig) 2)
;; (equal (car type-sig) 'ARRAY)))
;; (defun reference-type (type)
;; (or (stringp type)
;; (array-type? type)))
;; ;; Does not handle floating point constant properly.
;; ;; ACL2 has no support for floating numbers directly.
;; (defun default-value (type)
;; (cond ((equal type 'BYTE) 0)
;; ((equal type 'SHORT) 0)
;; ((equal type 'INT) 0)
;; ((equal type 'LONG) 0)
;; ((equal type 'FLOAT) "0.0")
;; ((equal type 'DOUBLE) "0.0");
;; ((equal type 'CHAR) 0)
;; ((equal type 'BOOLEAN) nil)
;; ((array-type? type) -1)
;; ((reference-type type) -1) ;; use -1 as null pointer.
;; (t 'NOT-DEFINED)))
;;
;; ;;; moved to jvm-type-value.lisp
(include-book "../M6-DJVM-shared/jvm-object-manipulation-primitives")
;; (defun make-field-value-pair (field-name value)
;; (cons field-name value))
;; (defun make-immediate-field-bindings (class-name field-bindings)
;; (cons class-name field-bindings))
;; ;; initialization will actually fill in default values for those
;; ;; fields. however in build-class-fields-bindings
;; (defun wff-class-fields (class-fields)
;; (if (not (consp class-fields))
;; (equal class-fields nil)
;; (and (wff-field (car class-fields))
;; (wff-class-fields (cdr class-fields)))))
;; (defun build-class-fields-bindings (class-fields)
;; (declare (xargs :guard (wff-class-fields class-fields)))
;; (if (endp class-fields)
;; nil
;; (let* ((field (car class-fields))
;; (field-name (field-fieldname field))
;; (field-type (field-fieldtype field)))
;; (cons (make-field-value-pair field-name (default-value field-type))
;; (build-class-fields-bindings (cdr class-fields))))))
;; ;; too much efforts in defining those guard checks!!
;; ;; (acl2::set-verify-guards-eagerness 0)
;; (defun build-immediate-instance-data-guard (class-name s)
;; (and (wff-state s)
;; (wff-class-table (class-table s))
;; (wff-instance-class-table (instance-class-table s))
;; (wff-class-rep (class-by-name class-name
;; (instance-class-table s)))
;; (wff-class-fields (fields (class-by-name
;; class-name
;; (instance-class-table s))))))
;; (defun build-immediate-instance-data (class-name S)
;; (declare (xargs :guard (build-immediate-instance-data-guard class-name s)))
;; (let* ((dcl (instance-class-table S))
;; (field-bindings
;; (build-class-fields-bindings
;; (fields (class-by-name class-name dcl)))))
;; (mv (make-immediate-field-bindings class-name field-bindings) S)))
;; (defun build-a-java-visible-instance-data-guard (class-names s)
;; (if (not (consp class-names))
;; t
;; (and (build-immediate-instance-data-guard (car class-names) s)
;; (build-a-java-visible-instance-data-guard (cdr class-names) s))))
;; (defun build-a-java-visible-instance-data (class-names S)
;; (declare (xargs :guard (build-a-java-visible-instance-data-guard class-names s)))
;; (if (not (consp class-names))
;; (mv nil S)
;; (mv-let (immediate-instance-data new-S)
;; (build-immediate-instance-data (car class-names) S)
;; (mv-let (remaining-instance-data new-S2)
;; (build-a-java-visible-instance-data (cdr class-names) new-S)
;; (mv (cons immediate-instance-data remaining-instance-data)
;; new-S2)))))
;; (defun make-java-lang-Object-java-visible-part (s)
;; (mv (list (cons "java.lang.Object" nil))
;; s))
;; ;------------
;; ;; contains definition of collect-superclass-list and
;; ;; it's termination argument.
;; ;; assume all superclasses are loaded already.
;; ;; forget about guard verification for now!!
;; (acl2::set-verify-guards-eagerness 0)
;; ;; many guard will not be verified.
;; (defun build-a-java-visible-instance (classname S)
;; (let* ((cl (instance-class-table S))
;; (classnames (collect-superclass-list classname cl)))
;; (if (equal classname "java.lang.Object")
;; (make-java-lang-Object-java-visible-part S)
;; (build-a-java-visible-instance-data classnames S))))
;; (defun jvp-setfield (classname fieldname value obj)
;; (bind classname
;; (bind fieldname value
;; (binding classname obj))
;; obj)) ;; about how to change the java-visible-portion.
;; (defun jvp-getfield (classname fieldname obj)
;; (binding fieldname
;; (binding classname obj)))
;; (defun build-common-info (of-class)
;; (make-common-info 0 (new-monitor) of-class)) ;; ha code is same
;; (defun build-INSTANCE-specific-info ()
;; (make-INSTANCE-specific-info))
;; ;; add accessor to ...
;; (defun build-an-instance (classname S)
;; (mv-let (java-visible-portion new-S)
;; (build-a-java-visible-instance classname S)
;; (let ((commoninfo (build-common-info classname))
;; (specificinfo (build-INSTANCE-specific-info)))
;; (mv (make-object commoninfo specificinfo java-visible-portion) new-S))))
;; ;; so far only deal with building one instance
;; ;; this M6 and DJVM specific!! because it make uses of topStack and depends on
;; ;; the value representation of values on the stack.
;; ;------------------------------------------
;; ; Primitives for building an Array instance
;; ;------------------------------------------
;; ;; to build string, we need "array of char"
;; ;; use information from book jvm-type-value
;; (defun build-ARRAY-specific-info (the-internal-array bound)
;; (list 'specific-info 'ARRAY the-internal-array bound))
;; (defun array-type (array-obj)
;; (obj-type array-obj))
;; (defun array-bound (array-obj)
;; (let ((array-specific-info (specific-info array-obj)))
;; (nth 3 array-specific-info)))
;; (defun array-data (array-obj)
;; (let ((array-specific-info (specific-info array-obj)))
;; (nth 2 array-specific-info)))
;; (defun element-at (index array)
;; (nth index (array-data array)))
;; (defun init-array (type count)
;; (if (zp count)
;; nil
;; (cons (default-value type) (init-array type (- count 1)))))
;; (defun make-array (type bound data S)
;; (mv-let (java-visible-portion new-S)
;; (build-a-java-visible-instance "java.lang.Object" S)
;; (let* ((common-info (build-common-info type))
;; (specific-info (build-ARRAY-specific-info data bound)))
;; (mv (make-object common-info specific-info java-visible-portion) new-S))))
;; (defun set-element-at (index value array S)
;; (make-array (array-type array)
;; (array-bound array)
;; (update-nth index value (array-data array))
;; S))
;; (defun build-an-array-instance (element-type length S)
;; (let ((array-type (make-array-type element-type))
;; (array-data (init-array element-type length)))
;; (make-array array-type length array-data S)))
;; ;; make a change here. don't want to introduce exception here. let's assume
;; ;; once this is called, length is guaranteed to be correct.
;; ;; all possible exception should be thrown before it call this function.
;; (defun new-array (element-type length S)
;; (if (< length 0)
;; (m6-internal-error "new-array precondition violated" s)
;; (mv-let (the-object new-s)
;; (build-an-array-instance element-type length S)
;; (let* ((old-heap (heap new-s))
;; (addr (alloc old-heap))
;; (new-heap (bind addr the-object old-heap)))
;; (pushStack addr (update-trace addr (state-set-heap new-heap new-s)))))))
;; ;; whenever we create a new object, we update-the trace.
;; ;; .... M6, DJVM specific ...
;; (defun set-element-at-array (index value array-ref s)
;; (let* ((old-heap (heap s))
;; (old-array-obj (binding array-ref old-heap)))
;; (mv-let (new-array-obj new-s)
;; (set-element-at index value old-array-obj s)
;; (let* ((new-heap (bind array-ref new-array-obj old-heap)))
;; (state-set-heap new-heap new-s)))))
;; ;; we don't update the trace if there is only a write.
;; (defun set-array-content1 (obj-refs array-ref s offset)
;; (if (endp obj-refs)
;; s
;; (set-array-content1 (cdr obj-refs) array-ref
;; (set-element-at-array offset (car obj-refs)
;; array-ref s)
;; (+ offset 1))))
;; (defun set-array-content (obj-refs array-ref s)
;; (set-array-content1 obj-refs array-ref s 0))
;; ;; another definition will be
;; ;; (defun multiarray-measure (counts length)
;; ;; (if (zp length)
;; ;; (cons (cons (+ (len counts) 1) 0) 0)
;; ;; (cons (cons (+ (len counts) 1) 0) (+ length 1))))
;; ;; (mutual-recursion
;; ;; (defun make-multiarray1 (array-type counts s)
;; ;; (declare (xargs :measure (multiarray-measure counts 0)))
;; ;; (if (endp counts)
;; ;; (pushStack -1 s)
;; ;; ;; with the array-ref on the top of the stack
;; ;; (mv-let (obj-refs s1)
;; ;; (make-multiarray2 (array-base-type array-type)
;; ;; (cdr counts)
;; ;; (car counts)
;; ;; s)
;; ;; ;; first create all elements of the array
;; ;; (let* ((s2 (new-array (array-base-type array-type)
;; ;; (car counts)
;; ;; s1))
;; ;; (array-ref (topStack s2))
;; ;; (s3 (set-array-content obj-refs array-ref s2)))
;; ;; s3))))
;; ;; (defun make-multiarray2 (array-type counts length s)
;; ;; (declare (xargs :measure (multiarray-measure counts length)))
;; ;; (if (zp length)
;; ;; (mv nil s)
;; ;; (mv-let (obj-refs new-s)
;; ;; (make-multiarray2 array-type counts (- length 1) s)
;; ;; (let* ((new-s2 (make-multiarray1 array-type counts new-s))
;; ;; (obj-ref (topStack new-s2)))
;; ;; (mv (cons obj-ref obj-refs) (popStack new-s2)))))))
;; ;; ;; bytecode verifier would ensure the array-type is actually has more depths
;; ;; ;; than dim, here we check the runtime data from stack to ensure there are
;; ;; (defun multiarray-stack-non-negative (dim s)
;; ;; (if (zp dim)
;; ;; t
;; ;; (if (< (topStack s) 0)
;; ;; nil
;; ;; (multiarray-stack-non-negative (- dim 1) (popStack s)))))
;; ;; ;; similiar to new-array, assume exception is not thrown here.
;; ;; (defun new-multiarray (array-type dim s)
;; ;; (if (multiarray-stack-non-negative dim s)
;; ;; (m6-internal-error "new-multiarray precondition violated" s)
;; ;; (let ((counts (reverse (take dim (operand-stack (current-frame s))))))
;; ;; (make-multiarray1 array-type counts s))))
;; ;------------------------------------------
;; ; Primitives for building an Generic Object
;; ;------------------------------------------
;; ;---------------------------------------------------------------------------
;; ;
;; ; Build a String before class is properly loaded. only used by Class Loader
;; ; to create initial heap when loading the classs.
;; ;
;; ;----------------------------------------------------------------------------
;; ;; 08/19/2002
;; ;; because the special field appeared in the String also appeared as java
;; ;; visible field in String. We treat it as a generic_object.
;; (defun build-STRING-specific-info ()
;; (make-STRING-specific-info))
;; (defun build-a-javaString (s)
;; (mv-let (java-visible-portion new-S)
;; (build-a-java-visible-instance "java.lang.String" S)
;; (let ((commoninfo (build-common-info "java.lang.String"))
;; (specificinfo (build-STRING-specific-info)))
;; (mv (make-object commoninfo specificinfo java-visible-portion) new-S))))
;; ; build the heap objects that represent the classes loaded.
;; ;
;; (defun build-instanceClass-info (classname)
;; (make-INSTANCE_CLASS-specific-info classname))
;; ; (defun build-instanceClass-info (classname)
;; ; (list 'INSTANCE_CLASS classname))
;; ;; FIXED for consistent-test. 10/27/03
;; (defun isInstanceClass? (specificinfo)
;; (equal (cadr specificinfo) 'INSTANCE_CLASS))
;; (defun specific-info-classname (info)
;; (caddr info))
;; (defun build-java-lang-Class-java-visible-part (S)
;; (mv (list (cons "java.lang.Class" nil)
;; (cons "java.lang.Object" nil))
;; s))
;; (defun build-an-instanceClass (classname S)
;; (mv-let (java-visible-portion new-S)
;; (build-java-lang-Class-java-visible-part s)
;; (let ((commoninfo (build-common-info "java.lang.Class"))
;; (specific-info (build-instanceClass-info classname)))
;; (mv (make-object commoninfo specific-info java-visible-portion)
;; new-S))))
;; (defun build-instanceClassArrayClass-info (type-desc)
;; (make-instanceclassarrayclass-info type-desc))
;; (defun isArrayClass? (specificinfo)
;; (equal (cadr specificinfo) 'ARRAY_CLASS))
;; ;; may need to seperate the pacakage name out...
;; ;; notice this is an instance of java.lang.Class which described an array-type.
;; (defun specific-info-array-desc (info)
;; (caddr info))
;; (defun build-instanceClassArrayClass (base-type-desc S)
;; (mv-let (java-visible-portion new-S)
;; (build-java-lang-Class-java-visible-part s)
;; (let ((commoninfo (build-common-info "java.lang.Class"))
;; (specific-info (build-instanceClassArrayClass-info
;; (make-array-type base-type-desc))))
;; (mv (make-object commoninfo specific-info java-visible-portion)
;; new-S))))
;; ;--------------- build a Throwable-instance -----
;; (defun build-throwable-specific-info (message backtrace)
;; (make-throwable-specific-info message backtrace))
;; (defun specific-info-throwable-instance-message (specific-info)
;; (nth 2 specific-info))
;; (defun build-a-Throwable-instance (classname s)
;; (mv-let (java-visible-portion new-s)
;; (build-a-java-visible-instance classname s)
;; (let ((commoninfo (build-common-info classname))
;; (specific-info (build-throwable-specific-info -1 nil)))
;; (mv (make-object commoninfo specific-info java-visible-portion)
;; new-S))))
;; ;
;; ;-------------- above we defined how to build various objects -------
;; ;
;; ; GENERIC-OBJECT
;; ; ARRAY
;; ; STRING
;; ; INSTANCE-CLASS
;; ; ARRAY-CLASS
;; ; THROWABLE-instance
;; ;
;; ;
;; ;-------------- next we defined a unified interface face to use them ---
;; ;; assuming both c1 has been loaded (all it's superclass has been loaded.
;; ;; isSubClassOf1 is defined in jvm-semantics-primitives-aux.lisp
;; ;; for the termination argument.
;; (defun isSubClassOf (c1 c2 s)
;; (isSubClassOf1 c1 c2 (instance-class-table s) nil))
;; ;;
;; ;; the class of classname MUST have been loaded.
;; ;; before we can call this function.
;; ;;
;; (defun instantiate (classname S)
;; (cond ((equal classname "java.lang.String")
;; (build-a-javaString S))
;; ;; classname can't be string.
;; ;; is a Throwable class.
;; ((isSubClassOf classname "java.lang.Throwable" s)
;; (build-a-Throwable-instance classname s))
;; (t (build-an-instance classname s))))
;; (defun new-instance (classname S)
;; (mv-let (instance new-S)
;; (instantiate classname S)
;; (let* ((heap (heap new-S))
;; (new-addr (alloc heap))
;; (new-heap (bind new-addr instance heap)))
;; (mv new-addr (update-trace new-addr (state-set-heap new-heap s))))))
;; ;-
;; (defun type-by-class-ref (class-ref s)
;; (let* ((class-obj (deref class-ref (heap s)))
;; (specific-info (specific-info class-obj)))
;; (if (isInstanceClass? specific-info)
;; (specific-info-classname specific-info)
;; (if (isArrayClass? specific-info)
;; (specific-info-array-desc specific-info)
;; nil))));; impossible
;; ;-------------- primitives for modifying obj ----
;; ; this is internal operation, assume all classes are already initialized.
;; ;
;; (defun m6-putfield (classname fieldname value obj-ref s)
;; (let* ((old-heap (heap s))
;; (old-obj (binding obj-ref old-heap))
;; (old-jvp (java-visible-portion old-obj))
;; (new-jvp (jvp-setfield classname fieldname value old-jvp))
;; (new-obj (make-object (common-info old-obj)
;; (specific-info old-obj)
;; new-jvp))
;; (new-heap (bind obj-ref new-obj old-heap)))
;; (state-set-heap new-heap s)))
;; (defun m6-getfield (classname fieldname obj-ref s)
;; (binding fieldname
;; (binding classname
;; (java-visible-portion (deref obj-ref (heap s))))))
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