jcc/_jcc/java/lang/String.cpp

   1 /*
   2  *   Licensed under the Apache License, Version 2.0 (the "License");
   3  *   you may not use this file except in compliance with the License.
   4  *   You may obtain a copy of the License at
   5  *
   6  *       http://www.apache.org/licenses/LICENSE-2.0
   7  *
   8  *   Unless required by applicable law or agreed to in writing, software
   9  *   distributed under the License is distributed on an "AS IS" BASIS,
  10  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11  *   See the License for the specific language governing permissions and
  12  *   limitations under the License.
  13  */
  14
  15 #include <jni.h>
  16 #include <string.h>
  17 #include "JCCEnv.h"
  18 #include "java/lang/Object.h"
  19 #include "java/lang/Class.h"
  20 #include "java/lang/String.h"
  21
  22 namespace java {
  23     namespace lang {
  24
  25         enum {
  26             mid__init_,
  27             mid_toString,
  28             mid_length,
  29             max_mid
  30         };
  31
  32         Class *String::class$ = NULL;
  33         jmethodID *String::_mids = NULL;
  34
  35         jclass String::initializeClass()
  36         {
  37             if (!class$)
  38             {
  39                 jclass cls = env->findClass("java/lang/String");
  40
  41                 _mids = new jmethodID[max_mid];
  42                 _mids[mid__init_] =
  43                     env->getMethodID(cls, "<init>",
  44                                      "()V");
  45                 _mids[mid_toString] =
  46                     env->getMethodID(cls, "toString",
  47                                      "()Ljava/lang/String;");
  48                 _mids[mid_length] =
  49                     env->getMethodID(cls, "length",
  50                                      "()I");
  51
  52                 class$ = (Class *) new JObject(cls);
  53             }
  54
  55             return (jclass) class$->this$;
  56         }
  57
  58         String::String() : Object(env->newObject(initializeClass, &_mids, mid__init_)) {
  59         }
  60
  61         int String::length() const
  62         {
  63             return env->callIntMethod(this$, _mids[mid_length]);
  64         }
  65     }
  66 }
  67
  68
  69 #include "structmember.h"
  70 #include "functions.h"
  71 #include "macros.h"
  72
  73 namespace java {
  74     namespace lang {
  75
  76         static int t_String_init(t_String *self,
  77                                  PyObject *args, PyObject *kwds);
  78         static PyObject *t_String_length(t_String *self);
  79
  80         static PyMethodDef t_String__methods_[] = {
  81             DECLARE_METHOD(t_String, length, METH_NOARGS),
  82             { NULL, NULL, 0, NULL }
  83         };
  84
  85         DECLARE_TYPE(String, t_String, Object, java::lang::String,
  86                      t_String_init, 0, 0, 0, 0, 0);
  87
  88         static int t_String_init(t_String *self,
  89                                  PyObject *args, PyObject *kwds)
  90         {
  91             char *bytes;
  92
  93             switch (PyTuple_Size(args)) {
  94               case 0:
  95                 INT_CALL(self->object = String());
  96                 break;
  97               case 1:
  98                 if (!PyArg_ParseTuple(args, "s", &bytes))
  99                     return -1;
 100                 INT_CALL(self->object = String(env->fromUTF(bytes)));
 101                 break;
 102               default:
 103                 PyErr_SetString(PyExc_ValueError, "invalid args");
 104                 return -1;
 105             }
 106
 107             return 0;
 108         }
 109
 110         static PyObject *t_String_length(t_String *self)
 111         {
 112             jint length;
 113
 114             OBJ_CALL(length = self->object.length());
 115             return PyInt_FromLong(length);
 116         }
 117     }
 118 }