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abstract-interpreter.sls
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(library (scheme-langserver analysis abstract-interpreter)
(export step)
(import
(chezscheme)
(ufo-try)
(scheme-langserver util path)
(scheme-langserver util contain)
(scheme-langserver util dedupe)
(scheme-langserver util binary-search)
(scheme-langserver analysis util)
(scheme-langserver analysis dependency file-linkage)
(scheme-langserver analysis identifier meta)
(scheme-langserver analysis identifier primitive-variable)
(scheme-langserver analysis identifier reference)
(scheme-langserver analysis identifier rules define)
(scheme-langserver analysis identifier rules define-syntax)
(scheme-langserver analysis identifier rules define-record-type)
(scheme-langserver analysis identifier rules define-top-level-value)
(scheme-langserver analysis identifier rules define-top-level-syntax)
(scheme-langserver analysis identifier rules do)
(scheme-langserver analysis identifier rules lambda)
(scheme-langserver analysis identifier rules case-lambda)
(scheme-langserver analysis identifier rules let)
(scheme-langserver analysis identifier rules let*)
(scheme-langserver analysis identifier rules let-syntax)
(scheme-langserver analysis identifier rules letrec)
(scheme-langserver analysis identifier rules letrec*)
(scheme-langserver analysis identifier rules let-values)
(scheme-langserver analysis identifier rules let*-values)
(scheme-langserver analysis identifier rules letrec-syntax)
(scheme-langserver analysis identifier rules load)
(scheme-langserver analysis identifier rules load-library)
(scheme-langserver analysis identifier rules load-program)
(scheme-langserver analysis identifier rules fluid-let)
(scheme-langserver analysis identifier rules fluid-let-syntax)
(scheme-langserver analysis identifier rules body)
(scheme-langserver analysis identifier rules library-export)
(scheme-langserver analysis identifier rules library-import)
(scheme-langserver analysis identifier rules syntax-case)
(scheme-langserver analysis identifier rules syntax-rules)
(scheme-langserver analysis identifier rules self-defined-syntax)
(scheme-langserver analysis identifier rules with-syntax)
(scheme-langserver analysis identifier rules identifier-syntax)
(scheme-langserver analysis identifier self-defined-rules router)
(scheme-langserver virtual-file-system index-node)
(scheme-langserver virtual-file-system document)
(scheme-langserver virtual-file-system file-node)
(scheme-langserver virtual-file-system library-node))
;TODO: in case of self-defined macro's partially evaluation leading endless recursions, add a recursion avoid mechanism.
(define step
(case-lambda
[(root-file-node root-library-node file-linkage current-document)
(step root-file-node root-library-node file-linkage current-document '())]
[(root-file-node root-library-node file-linkage current-document expanded+callee-list)
(fold-left
(lambda (l current-index-node)
(step root-file-node root-library-node file-linkage current-document current-index-node '() '()))
'()
(document-index-node-list current-document))
(document-ordered-reference-list current-document)]
[(root-file-node root-library-node file-linkage current-document expanded+callee-list memory)
(fold-left
(lambda (l current-index-node)
(step root-file-node root-library-node file-linkage current-document current-index-node '() memory))
'()
(document-index-node-list current-document))
(document-ordered-reference-list current-document)]
[(root-file-node root-library-node file-linkage current-document current-index-node expanded+callee-list memory)
(cond
[(quote? current-index-node current-document)
(index-node-excluded-references-set! current-index-node (private:find-available-references-for expanded+callee-list current-document current-index-node))]
[(quasiquote? current-index-node current-document)
(let ([available-identifiers (private:find-available-references-for expanded+callee-list current-document current-index-node)])
(index-node-excluded-references-set! current-index-node available-identifiers)
(map
(lambda (i)
(step root-file-node root-library-node file-linkage current-document i available-identifiers 'quasiquoted expanded+callee-list memory))
(index-node-children current-index-node)))]
[(syntax? current-index-node current-document)
(index-node-excluded-references-set! current-index-node
(filter (lambda (i) (not (equal? (identifier-reference-type i) 'syntax-parameter))) (private:find-available-references-for expanded+callee-list current-document current-index-node)))]
[(quasisyntax? current-index-node current-document)
(let ([available-identifiers (private:find-available-references-for expanded+callee-list current-document current-index-node)])
(index-node-excluded-references-set! current-index-node (filter (lambda (i) (not (equal? (identifier-reference-type i) 'syntax-parameter))) available-identifiers))
(map
(lambda (i)
(step root-file-node root-library-node file-linkage current-document i available-identifiers 'quasisyntaxed expanded+callee-list memory))
(index-node-children current-index-node)))]
[(not (null? (index-node-children current-index-node)))
(let* ([children (index-node-children current-index-node)]
[head (car children)]
[head-expression (annotation-stripped (index-node-datum/annotations head))]
[target-rules
(cond
[(symbol? head-expression)
(establish-available-rules-from
file-linkage
(private:find-available-references-for expanded+callee-list current-document current-index-node head-expression)
current-document
expanded+callee-list
`(,memory (,(annotation-stripped (index-node-datum/annotations current-index-node)))))]
[else '()])])
(map (lambda (f) ((car (cdr f)) root-file-node root-library-node current-document current-index-node)) target-rules)
(fold-left
(lambda (l child-index-node)
(step root-file-node root-library-node file-linkage current-document child-index-node expanded+callee-list memory))
'()
children)
(map
(lambda (f)
(if (not (null? (cdr (cdr f))))
((cdr (cdr f)) root-file-node root-library-node current-document current-index-node)))
target-rules))]
[else '()])]
[(root-file-node root-library-node file-linkage current-document current-index-node available-identifiers quasi-quoted-syntaxed expanded+callee-list memory)
(if (case quasi-quoted-syntaxed
['quasiquoted (or (unquote? current-index-node current-document) (unquote-splicing? current-index-node current-document))]
['quasisyntaxed (or (unsyntax? current-index-node current-document) (unsyntax-splicing? current-index-node current-document))])
(begin
;; (debug:print-expression current-index-node)
;; (pretty-print (null? (index-node-children current-index-node)))
;; (debug:print-expression (index-node-parent current-index-node))
(index-node-references-import-in-this-node-set! current-index-node (sort-identifier-references available-identifiers))
(map
(lambda (i)
(step root-file-node root-library-node file-linkage current-document i expanded+callee-list memory))
(index-node-children current-index-node)))
(map
(lambda (i)
(step root-file-node root-library-node file-linkage current-document i available-identifiers quasi-quoted-syntaxed expanded+callee-list memory))
(index-node-children current-index-node)))]))
(define (private-rule-compare? item0 item1)
(apply identifier-compare? (map car (list item0 item1))))
(define (private-add-rule origin target-rule)
(merge private-rule-compare? origin
`((,(cdr target-rule) . ,(car target-rule)))))
(define (establish-available-rules-from file-linkage identifier-list current-document expanded+callee-list memory)
(fold-left
(lambda (rules identifier)
(let* ([top (root-ancestor identifier)]
[r (map identifier-reference-identifier top)]
[i (identifier-reference-identifier identifier)]
[is (map identifier-reference-library-identifier top)])
(if (find meta-library? is)
(cond
[(equal? r '(define)) (private-add-rule rules `((,define-process) . ,identifier))]
[(equal? r '(define-syntax)) (private-add-rule rules `((,define-syntax-process) . ,identifier))]
[(equal? r '(define-record-type)) (private-add-rule rules `((,define-record-type-process) . ,identifier))]
[(equal? r '(do)) (private-add-rule rules `((,do-process) . ,identifier))]
[(equal? r '(case-lambda)) (private-add-rule rules `((,case-lambda-process) . ,identifier))]
[(equal? r '(lambda)) (private-add-rule rules `((,lambda-process) . ,identifier))]
[(equal? r '(set!)) (private-add-rule rules `((,define-top-level-value-process) . ,identifier))]
[(equal? r '(set-top-level-value!)) (private-add-rule rules `((,define-top-level-value-process) . ,identifier))]
[(equal? r '(define-top-level-value)) (private-add-rule rules `((,define-top-level-value-process) . ,identifier))]
[(equal? r '(set-top-level-syntax!)) (private-add-rule rules `((,define-top-level-syntax-process) . ,identifier))]
[(equal? r '(define-top-level-syntax)) (private-add-rule rules `((,define-top-level-syntax-process) . ,identifier))]
[(equal? r '(let)) (private-add-rule rules `((,let-process) . ,identifier))]
[(equal? r '(let*)) (private-add-rule rules `((,let*-process) . ,identifier))]
[(equal? r '(let-values)) (private-add-rule rules `((,let-values-process) . ,identifier))]
[(equal? r '(let*-values)) (private-add-rule rules `((,let*-values-process) . ,identifier))]
[(equal? r '(let-syntax)) (private-add-rule rules `((,let-syntax-process) . ,identifier))]
[(equal? r '(letrec)) (private-add-rule rules `((,letrec-process) . ,identifier))]
[(equal? r '(letrec*)) (private-add-rule rules `((,letrec*-process) . ,identifier))]
[(equal? r '(letrec-syntax)) (private-add-rule rules `((,letrec-syntax-process) . ,identifier))]
[(equal? r '(fluid-let)) (private-add-rule rules `((,fluid-let-process) . ,identifier))]
[(equal? r '(fluid-let-syntax)) (private-add-rule rules `((,fluid-let-syntax-process) . ,identifier))]
[(equal? r '(syntax-case)) (private-add-rule rules `((,syntax-case-process) . ,identifier))]
[(equal? r '(syntax-rules)) (private-add-rule rules `((,syntax-rules-process) . ,identifier))]
[(equal? r '(identifier-syntax)) (private-add-rule rules `((,identifier-syntax-process) . ,identifier))]
[(equal? r '(with-syntax)) (private-add-rule rules `((,with-syntax-process) . ,identifier))]
[(equal? r '(library)) (private-add-rule rules `((,library-import-process . ,export-process) . ,identifier))]
[(equal? r '(invoke-library)) (private-add-rule rules `((,invoke-library-process) . ,identifier))]
[(equal? r '(import))
(let ([special
(lambda (root-file-node root-library-node document index-node)
(if (null? (index-node-parent index-node))
(import-process root-file-node root-library-node document index-node)
(let* ([t (car (index-node-children (index-node-parent index-node)))]
[t-e (annotation-stripped (index-node-datum/annotations t))])
(cond
[(not (symbol? t-e))
(import-process root-file-node root-library-node document index-node)]
[(and (null? (index-node-parent t)) (equal? t-e 'library))
(do-nothing root-file-node root-library-node document index-node)]
[(null? (index-node-parent t))
(import-process root-file-node root-library-node document index-node)]
[(find
(lambda (ss)
(and (equal? (identifier-reference-identifier ss) 'library)
(contain? '((chezscheme) (rnrs) (rnrs (6)) (scheme) (rnrs base)) (identifier-reference-library-identifier ss))))
(apply append (map root-ancestor (find-available-references-for current-document (index-node-parent t) t-e))))
(do-nothing root-file-node root-library-node document index-node)]
[else (import-process root-file-node root-library-node document index-node)]))))])
(private-add-rule rules `((,special) . ,identifier)))]
[(equal? r '(load)) (private-add-rule rules `((,load-process) . ,identifier))]
[(equal? r '(load-program)) (private-add-rule rules `((,load-program-process) . ,identifier))]
[(equal? r '(load-library)) (private-add-rule rules `((,load-library-process) . ,identifier))]
[(equal? r '(body)) (private-add-rule rules `((,do-nothing . ,body-process) . ,identifier))]
[else rules])
(route&add
rules identifier
file-linkage identifier-list current-document expanded+callee-list memory
private-add-rule step))))
'()
(filter
(lambda (identifier)
(not
(or
(equal? 'parameter (identifier-reference-type identifier))
(equal? 'syntax-parameter (identifier-reference-type identifier))
(equal? 'procedure (identifier-reference-type identifier)))))
identifier-list)))
(define private:find-available-references-for
(case-lambda
[(expanded+callee-list current-document current-index-node)
(let ([result (assoc current-index-node expanded+callee-list)])
(if result
(private:find-available-references-for expanded+callee-list current-document (cdr result))
(find-available-references-for current-document current-index-node)))]
[(expanded+callee-list current-document current-index-node expression)
(let ([result (assoc current-index-node expanded+callee-list)])
(if result
(private:find-available-references-for expanded+callee-list current-document (cdr result) expression)
(find-available-references-for current-document current-index-node expression)))]))
)