gir-parser.lisp

   1 (in-package :gir)
   2
   3 (defun is-object-record (record)
   4   (let* ((record-string (string record))
   5                  (record-string-len (length record-string)))
   6     (or
   7      (and (> record-string-len 6)
   8           (string= "OBJECT" (string-upcase (subseq  record-string (- record-string-len 6))))))))
   9
  10 (defun parse-function-types (method)
  11   (iterate
  12     (for item in (s-xml:xml-element-children method))
  13     (case (s-xml:xml-element-name item)
  14       (GIR-CORE::|return-value|
  15                   (let ((return-type (first (xml-element-children item))))
  16                     (format t "~T~A~%" (resolve-type (s-xml:xml-element-attribute return-type 'GIR-C::|type|)))))
  17       (GIR-CORE::|parameters|
  18                   (iterate
  19                     (for parameter in (s-xml:xml-element-children item))
  20                     (format t "( ~A " (s-xml:xml-element-attribute parameter :|name|))
  21                     (format t " ~A )~%"
  22                             (resolve-type (xml-element-attribute (car (s-xml:xml-element-children parameter)) 'GIR-C::|type|))))))))
  23
  24 (defun parse-signal-types (gsignal)
  25   (let ((name (s-xml:xml-element-attribute gsignal :|name|)))
  26         (format t "~%; ----------------- ~A ----------------~%" name)
  27         (format t "(defmacro make-~A-callback (name &rest body) ~%" (lispize name))
  28         (format t "~T(defcallback ,name ")
  29         (iterate
  30          (for item in (s-xml:xml-element-children gsignal))
  31      (when (s-xml::xml-element-p item)
  32        (case (s-xml:xml-element-name item)
  33          (GIR-CORE::|return-value|
  34                     (let ((return-type (first (xml-element-children item))))
  35                       (format t "~T~A~%" (resolve-type (s-xml:xml-element-attribute return-type 'GIR-C::|type|)))))
  36          (GIR-CORE::|parameters|
  37                     (iterate
  38                      (for parameter in (s-xml:xml-element-children item))
  39                      (format t "( ~A " (s-xml:xml-element-attribute parameter :|name|))
  40                      (format t " ~A )~%"
  41                              (resolve-type (xml-element-attribute (car (s-xml:xml-element-children parameter)) 'GIR-C::|type|))))))))
  42         (format t "))~%")))
  43
  44
  45
  46 (defun parse-record (record)
  47   (let ((c-type (s-xml:xml-element-attribute record  'GIR-C::|type|))
  48         (name (s-xml:xml-element-attribute record :|name|)))
  49     ;; we punt on object records (I think they are meant to be opaque)
  50     (add-type name :struct)
  51         (unless (is-object-record name)
  52           (format t "~%; ----------------- ~A ----------------~%" name)
  53           (format t  "~%(defcstruct ~A ~%" name)
  54           (iterate
  55                 (for field in (s-xml:xml-element-children record))
  56                 (when (eql  (s-xml:xml-element-name field) 'GIR-CORE::|field|)
  57                   (format t "~T(~A ~A)~%"
  58                                   (lispize (s-xml:xml-element-attribute field :|name|))
  59                                   (resolve-type (s-xml:xml-element-attribute field :|value|)))))
  60           (format t ")~%")
  61           (iterate
  62                 (for method in (s-xml:xml-element-children record))
  63                 (when (eql (s-xml:xml-element-name method) 'GIR-CORE::|callback|)
  64                   (let ((name (s-xml:xml-element-attribute method :|name|)))
  65                         (format t "(defcfun (~S ~A) " name (lispize name))
  66                         ;; to do -- still need to parse callbacks as methods!
  67                         (parse-function-types method))))
  68
  69           (format t ")~%"))))
  70
  71
  72 (defun parse-function (function)
  73   (let ((c-identifier (s-xml:xml-element-attribute function  'GIR-C:|identifier|))
  74         (name (s-xml:xml-element-attribute function :|name|)))
  75     (format t "~%; ----------------- ~A ---------------- " name)
  76         (format t "~%(defcfun (~S ~A) ~%" c-identifier (lispize name))
  77     (parse-function-types function)
  78         (format t ")~%")))
  79
  80 (defun parse-constructor (constructor)
  81   (let ((c-identifier (s-xml:xml-element-attribute constructor  'GIR-C:|identifier|))
  82         (name (s-xml:xml-element-attribute constructor :|name|)))
  83     (format t "~%; ----------------- ~A ---------------- " (lispize c-identifier))
  84         (format t "~%(defcfun (~S ~A) ~%" c-identifier (lispize c-identifier))
  85     (parse-function-types constructor)
  86         (format t ")~%")))
  87
  88 ;; callbacks associated with the records are actually methods
  89
  90
  91 (defun parse-enum-members (enum)
  92   (iterate
  93    (for member in (s-xml:xml-element-children enum))
  94    (when (eql (s-xml:xml-element-name member) 'GIR-CORE::|member|)
  95          (format t "~T(:~A ~S)~%"
  96              (string-upcase (s-xml:xml-element-attribute member :|name|))
  97                          (parse-integer (s-xml:xml-element-attribute member :|value|))))))
  98
  99 (defun parse-enumeration (enum)
 100   (let ((c-type (s-xml:xml-element-attribute enum  'GIR-C::|type|))
 101         (name (s-xml:xml-element-attribute enum :|name|)))
 102     (format t "~%; ----------------- ~A ----------------~%" (lispize c-type))
 103         (add-type (string c-type) :unsigned-int)
 104         (format t "(defcenum ~A ~% " name)
 105         (parse-enum-members enum)
 106         (format t ")~%")))
 107
 108 (defun parse-bitfield (bitfield)
 109   (let ((c-type (s-xml:xml-element-attribute bitfield 'GIR-C::|type|))
 110         (name (s-xml:xml-element-attribute bitfield :|name|)))
 111     (format t "~%; ----------------- ~A ----------------~%" (lispize c-type))
 112         (format t "(defcenum ~A ~% " name)
 113         (add-type (string c-type) :unsigned-int)
 114         (parse-enum-members bitfield)
 115         (format t ")~%")))
 116
 117 (defun parse-class (gclass)
 118   (iterate
 119    (for method in (s-xml:xml-element-children gclass))
 120    (when (s-xml::xml-element-p method)
 121      (case (s-xml:xml-element-name method)
 122        (GIR-CORE::|constructor| (parse-constructor method))
 123        (GIR-CORE::|method|  (parse-function method))
 124        (GIR-CORE::|callback| (parse-signal-types method))))))
 125
 126 (defun parse-boxed (boxed)
 127   (iterate
 128    (for method in (s-xml:xml-element-children boxed))
 129    (when (s-xml::xml-element-p method)
 130      (case (s-xml:xml-element-name method)
 131        (GIR-CORE::|constructor| (parse-function-types method))
 132        (GIR-CORE::|method|  (parse-function-types method))
 133        (GIR-CORE::|callback| (parse-signal-types method))))))
 134
 135 (defun parse-callback (callback)
 136   (let ((name (s-xml:xml-element-attribute callback :|name|)))
 137         (add-type name :pointer)
 138         (parse-signal-types callback)))
 139
 140 (defparameter *gir-top-level-type-elements*
 141   ;; first pass --
 142   '((GIR-CORE::|bitfield| . parse-bitfield)
 143     (GIR-CORE::|enumeration| . parse-enumeration)
 144     (GIR-CORE::|record|  . parse-record)))
 145
 146 (defparameter *gir-top-level-function-elements*
 147   ;; third pass
 148   '((GIR-CORE::|callback| . parse-callback)
 149     (GIR-CORE::|function| . parse-function)
 150     (GIR-CORE::|class| . parse-class)
 151     (GIR-GLIB::|boxed| . parse-boxed)))
 152
 153
 154 (defun parse-element (elements entry)
 155   (let ((name (s-xml:xml-element-name entry)))
 156     (let ((fun (cdr (assoc name elements))))
 157       (if fun
 158         (funcall fun entry)))))
 159
 160
 161 (defun parse-namespace (namespace elements)
 162   (let ((namespace-name
 163          (alexandria::make-keyword
 164           (string-upcase (s-xml:xml-element-attribute namespace :|name|)))))
 165     (format t "(defpackage ~S (:use :common-lisp :cffi :iterate))~%~%" namespace-name)
 166     (format t "(inpackage ~S)~%" namespace-name)
 167     (iterate
 168       (for entry in (xml-element-children namespace))
 169       (parse-element elements entry))))
 170
 171 (defun parse-repository (repository elements)
 172   (iterate
 173     (for namespace in (s-xml:xml-element-children repository))
 174     (parse-namespace namespace elements)))