* src/vm/primitive.cpp: Removed obsolete legacy C interface.
[cacao.git] / src / vm / primitive.cpp
index 2b1b27a621f915ffd16096a54afa925fa0b7c1be..9d6b79200e7ea2bcb753cbc69a915dee1869a12f 100644 (file)
 #include <assert.h>
 #include <stdint.h>
 
-#include "native/jni.h"
 #include "native/llni.h"
 
-#include "vm/builtin.h"
-#include "vm/class.h"
+#include "vm/jit/builtin.hpp"
+#include "vm/class.hpp"
 #include "vm/global.h"
 #include "vm/globals.hpp"
 #include "vm/javaobjects.hpp"
+#include "vm/options.h"
+#include "vm/os.hpp"
 #include "vm/primitive.hpp"
 #include "vm/utf8.h"
-#include "vm/vm.hpp"
+
+
+/* primitivetype_table *********************************************************
+
+   Structure for primitive classes: contains the class for wrapping
+   the primitive type, the primitive class, the name of the class for
+   wrapping, the one character type signature and the name of the
+   primitive class.
+   CAUTION: Don't change the order of the types. This table is indexed
+   by the ARRAYTYPE_ constants (except ARRAYTYPE_OBJECT).
+
+*******************************************************************************/
+
+primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT] = {
+       { "int"     , NULL, NULL, NULL, "java/lang/Integer",   'I', "[I", NULL },
+       { "long"    , NULL, NULL, NULL, "java/lang/Long",      'J', "[J", NULL },
+       { "float"   , NULL, NULL, NULL, "java/lang/Float",     'F', "[F", NULL },
+       { "double"  , NULL, NULL, NULL, "java/lang/Double",    'D', "[D", NULL },
+       { NULL      , NULL, NULL, NULL, NULL,                   0 , NULL, NULL },
+       { "byte"    , NULL, NULL, NULL, "java/lang/Byte",      'B', "[B", NULL },
+       { "char"    , NULL, NULL, NULL, "java/lang/Character", 'C', "[C", NULL },
+       { "short"   , NULL, NULL, NULL, "java/lang/Short",     'S', "[S", NULL },
+       { "boolean" , NULL, NULL, NULL, "java/lang/Boolean",   'Z', "[Z", NULL },
+       { NULL      , NULL, NULL, NULL, NULL,                   0 , NULL, NULL },
+#if defined(ENABLE_JAVASE)
+       { "void"    , NULL, NULL, NULL, "java/lang/Void",      'V', NULL, NULL }
+#else
+       { NULL      , NULL, NULL, NULL, NULL,                   0 , NULL, NULL },
+#endif
+};
+
+
+/**
+ * Fill the primitive type table with the primitive-type classes,
+ * array-classes and wrapper classes.  This is important in the VM
+ * startup.
+ *
+ * We split this primitive-type table initialization because of
+ * annotations in the bootstrap classes.
+ *
+ * But we may get a problem if we have annotations in:
+ *
+ * java/lang/Object
+ * java/lang/Cloneable
+ * java/io/Serializable
+ *
+ * Also see: loader_preinit and linker_preinit.
+ */
+void Primitive::initialize_table()
+{  
+       utf       *name;
+       classinfo *c;
+       utf       *u;
+       classinfo *ac;
+
+       TRACESUBSYSTEMINITIALIZATION("primitive_init");
+
+       /* Load and link primitive-type classes and array-classes. */
+
+       for (int i = 0; i < PRIMITIVETYPE_COUNT; i++) {
+               /* Skip dummy entries. */
+
+               if (primitivetype_table[i].cname == NULL)
+                       continue;
+
+               /* create UTF-8 name */
+
+               name = utf_new_char(primitivetype_table[i].cname);
+
+               primitivetype_table[i].name = name;
+
+               /* create primitive class */
+
+               c = class_create_classinfo(name);
+
+               /* Primitive type classes don't have a super class. */
+
+               c->super = NULL;
+
+               /* set flags and mark it as primitive class */
+
+               c->flags = ACC_PUBLIC | ACC_FINAL | ACC_ABSTRACT | ACC_CLASS_PRIMITIVE;
+               
+               /* prevent loader from loading primitive class */
+
+               c->state |= CLASS_LOADED;
+
+               /* INFO: don't put primitive classes into the classcache */
+
+               if (!link_class(c))
+                       vm_abort("linker_init: linking failed");
+
+               /* Just to be sure. */
+
+               assert(c->state & CLASS_LOADED);
+               assert(c->state & CLASS_LINKED);
+
+               primitivetype_table[i].class_primitive = c;
+
+               /* Create primitive array class. */
+
+               if (primitivetype_table[i].arrayname != NULL) {
+                       u  = utf_new_char(primitivetype_table[i].arrayname);
+                       ac = class_create_classinfo(u);
+                       ac = load_newly_created_array(ac, NULL);
+
+                       if (ac == NULL)
+                               vm_abort("primitive_init: loading failed");
+
+                       assert(ac->state & CLASS_LOADED);
+
+                       if (!link_class(ac))
+                               vm_abort("primitive_init: linking failed");
+
+                       /* Just to be sure. */
+
+                       assert(ac->state & CLASS_LOADED);
+                       assert(ac->state & CLASS_LINKED);
+
+                       primitivetype_table[i].arrayclass = ac;
+               }
+       }
+
+       /* We use two for-loops to have the array-classes already in the
+          primitive-type table (hint: annotations in wrapper-classes). */
+
+       for (int i = 0; i < PRIMITIVETYPE_COUNT; i++) {
+               /* Skip dummy entries. */
+
+               if (primitivetype_table[i].cname == NULL)
+                       continue;
+
+               /* Create class for wrapping the primitive type. */
+
+               u = utf_new_char(primitivetype_table[i].wrapname);
+               c = load_class_bootstrap(u);
+
+               if (c == NULL)
+                       vm_abort("primitive_init: loading failed");
+
+               if (!link_class(c))
+                       vm_abort("primitive_init: linking failed");
+
+               /* Just to be sure. */
+
+               assert(c->state & CLASS_LOADED);
+               assert(c->state & CLASS_LINKED);
+
+               primitivetype_table[i].class_wrap = c;
+       }
+}
+
+
+/**
+ * Finish the primitive-type table initialization.  In this step we
+ * set the vftbl of the primitive-type classes.
+ *
+ * This is necessary because java/lang/Class is loaded and linked
+ * after the primitive types have been linked.
+ *
+ * We have to do that in an extra function, as the primitive types are
+ * not stored in the classcache.
+ */
+void Primitive::post_initialize_table()
+{
+       classinfo *c;
+       int        i;
+
+       TRACESUBSYSTEMINITIALIZATION("primitive_postinit");
+
+       assert(class_java_lang_Class);
+       assert(class_java_lang_Class->vftbl);
+
+       for (i = 0; i < PRIMITIVETYPE_COUNT; i++) {
+               /* Skip dummy entries. */
+
+               if (primitivetype_table[i].cname == NULL)
+                       continue;
+
+               c = primitivetype_table[i].class_primitive;
+
+               c->object.header.vftbl = class_java_lang_Class->vftbl;
+       }
+}
 
 
 /**
@@ -227,7 +412,7 @@ java_handle_t* Primitive::box(int type, imm_union value)
                break;
        default:
                o = NULL;
-               vm_abort("primitive_box: invalid primitive type %d", type);
+               os::abort("Primitive::box: Invalid primitive type %d", type);
        }
 
        return o;
@@ -288,13 +473,168 @@ imm_union Primitive::unbox(java_handle_t *h)
                value.a = h;
                break;
        default:
-               vm_abort("Primitive::unbox: invalid primitive type %d", type);
+               os::abort("Primitive::unbox: Invalid primitive type %d", type);
        }
 
        return value;
 }
 
 
+/**
+ * Unbox a primitive of the given type. Also checks if the
+ * boxed primitive type can be widened into the destination
+ * type. This conversion is done according to
+ * "The Java Language Specification, Third Edition,
+ * $5.1.2 Widening Primitive Conversion".
+ *
+ * @param h Handle of the boxing Java object.
+ * @param type Destination type of the conversion.
+ * @param value Pointer to union where the resulting primitive
+ * value will be stored will.
+ *
+ * @return True of the conversion is allowed, false otherwise.
+ */
+bool Primitive::unbox_typed(java_handle_t *h, int type, imm_union* value)
+{
+       classinfo *c;
+       int        src_type;
+
+       if (h == NULL)
+               return false;
+
+       LLNI_class_get(h, c);
+
+       src_type = get_type_by_wrapperclass(c);
+
+       switch (src_type) {
+       case PRIMITIVETYPE_BOOLEAN:
+               switch (type) {
+                       case PRIMITIVETYPE_BOOLEAN:
+                               value->i = unbox_boolean(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_BYTE:
+               switch (type) {
+                       case PRIMITIVETYPE_BYTE:
+                       case PRIMITIVETYPE_SHORT:
+                       case PRIMITIVETYPE_INT:
+                               value->i = unbox_byte(h);
+                               return true;
+                       case PRIMITIVETYPE_LONG:
+                               value->l = unbox_byte(h);
+                               return true;
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_byte(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_byte(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_CHAR:
+               switch (type) {
+                       case PRIMITIVETYPE_CHAR:
+                       case PRIMITIVETYPE_INT:
+                               value->i = unbox_char(h);
+                               return true;
+                       case PRIMITIVETYPE_LONG:
+                               value->l = unbox_char(h);
+                               return true;
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_char(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_char(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_SHORT:
+               switch (type) {
+                       case PRIMITIVETYPE_SHORT:
+                       case PRIMITIVETYPE_INT:
+                               value->i = unbox_short(h);
+                               return true;
+                       case PRIMITIVETYPE_LONG:
+                               value->l = unbox_short(h);
+                               return true;
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_short(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_short(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_INT:
+               switch (type) {
+                       case PRIMITIVETYPE_INT:
+                               value->i = unbox_int(h);
+                               return true;
+                       case PRIMITIVETYPE_LONG:
+                               value->l = unbox_int(h);
+                               return true;
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_int(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_int(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_LONG:
+               switch (type) {
+                       case PRIMITIVETYPE_LONG:
+                               value->l = unbox_long(h);
+                               return true;
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_long(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_long(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_FLOAT:
+               switch (type) {
+                       case PRIMITIVETYPE_FLOAT:
+                               value->f = unbox_float(h);
+                               return true;
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_float(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       case PRIMITIVETYPE_DOUBLE:
+               switch (type) {
+                       case PRIMITIVETYPE_DOUBLE:
+                               value->d = unbox_double(h);
+                               return true;
+                       default:
+                               return false;
+               }
+
+       default:
+               os::abort("Primitive::unbox_typed: Invalid primitive type %d", type);
+               return false;
+       }
+}
+
+
 /**
  * Box a primitive type.
  */
@@ -462,22 +802,6 @@ inline double Primitive::unbox_double(java_handle_t *h)
 }
 
 
-
-// Legacy C interface.
-
-extern "C" {
-
-       classinfo* Primitive_get_class_by_name(utf *name) { return Primitive::get_class_by_name(name); }
-classinfo* Primitive_get_class_by_type(int type) { return Primitive::get_class_by_type(type); }
-classinfo* Primitive_get_class_by_char(char ch) { return Primitive::get_class_by_char(ch); }
-classinfo* Primitive_get_arrayclass_by_name(utf *name) { return Primitive::get_arrayclass_by_name(name); }
-classinfo* Primitive_get_arrayclass_by_type(int type) { return Primitive::get_arrayclass_by_type(type); }
-int Primitive_get_type_by_wrapperclass(classinfo *c) { return Primitive::get_type_by_wrapperclass(c); }
-java_handle_t* Primitive_box(int type, imm_union value) { return Primitive::box(type, value); }
-imm_union Primitive_unbox(java_handle_t *h) { return Primitive::unbox(h); }
-}
-
-
 /*
  * These are local overrides for various environment variables in Emacs.
  * Please do not remove this and leave it at the end of the file, where