gambas-source-code/main/gbc/gbc_class.c
gambas 714b77a10d Work on new JIT system continues.
[CONFIGURATION]
* NEW: Add '.jit' directory to '.gitignore'.

[COMPILER]
* NEW: New '-j' option that disables just in time compilation.
* NEW: JIT: Support for private functions calls.
* NEW: JIT: Support for native arrays accessors.
* BUG: JIT: Fix loop support.
* NEW: JIT: Support for GOSUB.

[GB.JIT]
* NEW: GB_JIT_DEBUG is an environment variable that defines if JIT compilation debugging messages are printed.
* NEW: GB_JIT_CFLAGS is an environment variable that defines the JIT compilation flags. The default is "-O3".
* NEW: Support for native arrays accessors.
2018-06-01 03:50:42 +02:00

1014 lines
22 KiB
C

/***************************************************************************
gbc_class.c
(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#define __GBC_CLASS_C
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "gb_common.h"
#include "gb_error.h"
#include "gb_str.h"
#include "gb_file.h"
#include "gb_table.h"
#include "gbc_compile.h"
#include "gb_code.h"
static int _array_class[17];
void CLASS_create(CLASS **result)
{
CLASS *class;
TRANS_FUNC func;
ALLOC_ZERO(&class, sizeof(CLASS));
ARRAY_create_inc(&class->function, 256);
ARRAY_create(&class->event);
ARRAY_create(&class->prop);
ARRAY_create(&class->ext_func);
ARRAY_create_inc(&class->constant, 256);
ARRAY_create(&class->class);
ARRAY_create_inc(&class->unknown, 256);
ARRAY_create_inc(&class->stat, 256);
ARRAY_create_inc(&class->dyn, 256);
ARRAY_create(&class->array);
ARRAY_create(&class->structure);
ARRAY_create(&class->names);
TABLE_create(&class->table, sizeof(CLASS_SYMBOL), TF_IGNORE_CASE);
TABLE_create(&class->string, sizeof(SYMBOL), TF_NORMAL);
CLEAR(&func);
TYPE_clear(&func.type);
func.index = CLASS_add_symbol(class, "@init");
CLASS_add_function(class, &func);
func.index = CLASS_add_symbol(class, "@new");
CLASS_add_function(class, &func);
class->name = STR_copy(FILE_set_ext(FILE_get_name(JOB->name), NULL));
class->parent = NO_SYMBOL;
memset(_array_class, 0, sizeof(_array_class));
*result = class;
}
static void delete_function(FUNCTION *func)
{
ARRAY_delete(&func->local);
if (func->code)
FREE(&func->code);
if (JOB->debug)
ARRAY_delete(&func->pos_line);
if (func->param)
FREE(&func->param);
}
static void delete_event(EVENT *event)
{
if (event->param)
FREE(&event->param);
}
static void delete_extfunc(EXTFUNC *extfunc)
{
if (extfunc->param)
FREE(&extfunc->param);
}
static void delete_structure(CLASS_STRUCT *structure)
{
if (structure->field)
ARRAY_delete(&structure->field);
}
void CLASS_delete(CLASS **class)
{
int i;
if (*class)
{
TABLE_delete(&((*class)->table));
TABLE_delete(&((*class)->string));
for (i = 0; i < ARRAY_count((*class)->function); i++)
delete_function(&((*class)->function[i]));
for (i = 0; i < ARRAY_count((*class)->event); i++)
delete_event(&((*class)->event[i]));
for (i = 0; i < ARRAY_count((*class)->ext_func); i++)
delete_extfunc(&((*class)->ext_func[i]));
for (i = 0; i < ARRAY_count((*class)->structure); i++)
delete_structure(&((*class)->structure[i]));
for (i = 0; i < ARRAY_count((*class)->names); i++)
FREE(&((*class)->names[i]));
ARRAY_delete(&((*class)->function));
ARRAY_delete(&((*class)->event));
ARRAY_delete(&((*class)->prop));
ARRAY_delete(&((*class)->ext_func));
ARRAY_delete(&((*class)->constant));
ARRAY_delete(&((*class)->class));
ARRAY_delete(&((*class)->unknown));
ARRAY_delete(&((*class)->stat));
ARRAY_delete(&((*class)->dyn));
ARRAY_delete(&((*class)->array));
ARRAY_delete(&((*class)->structure));
ARRAY_delete(&((*class)->names));
if ((*class)->name != NULL)
STR_free((*class)->name);
FREE(class);
}
}
CLASS_SYMBOL *CLASS_declare(CLASS *class, int index, int type, bool global)
{
const char *name;
CLASS_SYMBOL *sym;
sym = CLASS_get_symbol(class, index);
if ((global && !TYPE_is_null(sym->global.type))
|| (!global && !TYPE_is_null(sym->local.type))) // || !TYPE_is_null(sym->global.type))))
{
char name[sym->symbol.len + 1];
memcpy(name, sym->symbol.name, sym->symbol.len);
name[sym->symbol.len] = 0;
THROW("'&1' already declared", name);
}
if (type == TK_VARIABLE && sym->class && JOB->class->class[sym->class - 1].has_static)
{
name = SYMBOL_get_name(&sym->symbol);
if (global)
COMPILE_print(MSG_WARNING, -1, "class name hidden by global declaration: &1", name);
else
COMPILE_print(MSG_WARNING, -1, "class name hidden by local declaration: &1", name);
}
if (!global && !TYPE_is_null(sym->global.type))
{
name = SYMBOL_get_name(&sym->symbol);
switch (TYPE_get_kind(sym->global.type))
{
case TK_VARIABLE:
COMPILE_print(MSG_WARNING, -1, "global variable hidden by local declaration: &1", name);
break;
case TK_FUNCTION:
COMPILE_print(MSG_WARNING, -1, "function hidden by local declaration: &1", name);
break;
case TK_EXTERN:
COMPILE_print(MSG_WARNING, -1, "extern function hidden by local declaration: &1", name);
break;
case TK_CONST:
COMPILE_print(MSG_WARNING, -1, "constant hidden by local declaration: &1", name);
break;
}
}
if (global)
sym->global.line = JOB->line;
else
sym->local.line = JOB->line;
return sym;
}
void CLASS_check_unused_global(CLASS *class)
{
CLASS_SYMBOL *sym;
int i;
TYPE type;
for (i = 0; i < TABLE_count(class->table); i++)
{
sym = CLASS_get_symbol(class, i);
type = sym->global.type;
if (sym->global_used && sym->global_assigned)
continue;
if (TYPE_is_null(type) || TYPE_is_public(type))
continue;
if (!sym->global_used)
{
if (TYPE_get_kind(type) == TK_VARIABLE)
COMPILE_print(MSG_WARNING, sym->global.line, "unused global variable: &1", SYMBOL_get_name(&sym->symbol));
else if (TYPE_get_kind(type) == TK_FUNCTION)
COMPILE_print(MSG_WARNING, sym->global.line, "unused function: &1", SYMBOL_get_name(&sym->symbol));
else if (TYPE_get_kind(type) == TK_EXTERN)
COMPILE_print(MSG_WARNING, sym->global.line, "unused extern function: &1", SYMBOL_get_name(&sym->symbol));
}
else
{
if (TYPE_get_kind(type) == TK_VARIABLE)
COMPILE_print(MSG_WARNING, sym->global.line, "uninitialized global variable: &1", SYMBOL_get_name(&sym->symbol));
}
}
}
void CLASS_add_function(CLASS *class, TRANS_FUNC *decl)
{
FUNCTION *func;
int i;
CLASS_SYMBOL *sym;
PARAM *param;
int count;
count = ARRAY_count(class->function);
if (count >= MAX_CLASS_FUNCTION)
THROW("Too many functions");
func = ARRAY_add_void(&class->function);
TYPE_clear(&func->type);
func->nparam = 0;
func->name = NO_SYMBOL;
ARRAY_create(&func->local);
//ARRAY_create_inc(&func->code, 512);
func->code = NULL;
func->ncode = 0;
func->ncode_max = 0;
if (JOB->debug)
ARRAY_create(&func->pos_line);
if (!decl) return;
sym = CLASS_declare(class, decl->index, TK_FUNCTION, TRUE);
/*CLASS_add_symbol(class, JOB->table, decl->index, &sym, NULL);*/
sym->global.type = decl->type;
sym->global.value = ARRAY_count(class->function) - 1;
if (TYPE_is_static(decl->type))
class->has_static = TRUE;
func->nparam = decl->nparam;
if (decl->nparam)
{
ALLOC(&func->param, decl->nparam * sizeof(PARAM));
for (i = 0; i < decl->nparam; i++)
func->param[i] = decl->param[i];
}
func->type = decl->type;
func->start = decl->start;
func->line = decl->line;
func->name = decl->index;
func->last_code = CODE_NO_POS;
func->last_code2 = CODE_NO_POS;
func->stack = 8; // Some stack may be needed for initialization functions
func->finally = 0;
func->catch = 0;
func->npmin = -1;
func->vararg = decl->vararg;
func->fast = decl->fast;
// Function startup
CODE_begin_function(func);
JOB->func = func;
// Byref check at function startup
if (decl->byref)
CODE_byref(decl->byref);
// Optional parameters
for (i = 0; i < func->nparam; i++)
{
param = &func->param[i];
if (param->optional == NULL)
continue;
if (func->npmin < 0)
func->npmin = i;
TRANS_init_optional(param);
CODE_pop_optional(i - func->nparam);
}
if (func->npmin < 0)
func->npmin = func->nparam;
}
void CLASS_add_event(CLASS *class, TRANS_EVENT *decl)
{
EVENT *event;
int i;
CLASS_SYMBOL *sym;
int count;
count = ARRAY_count(class->event);
if (count >= MAX_CLASS_EVENT)
THROW("Too many events");
event = ARRAY_add_void(&class->event);
TYPE_clear(&event->type);
event->nparam = 0;
event->name = NO_SYMBOL;
if (!decl) return;
sym = CLASS_declare(class, decl->index, TK_EVENT, TRUE);
/*CLASS_add_symbol(class, JOB->table, decl->index, &sym, NULL);*/
sym->global.type = decl->type;
sym->global.value = ARRAY_count(class->event) - 1;
event->nparam = decl->nparam;
if (event->nparam)
{
ALLOC(&event->param, decl->nparam * sizeof(PARAM));
for (i = 0; i < decl->nparam; i++)
{
event->param[i].type = decl->param[i].type;
event->param[i].index = decl->param[i].index;
}
}
event->type = decl->type;
event->name = decl->index;
}
void CLASS_add_property(CLASS *class, TRANS_PROPERTY *decl)
{
PROPERTY *prop;
CLASS_SYMBOL *sym;
int index;
int i;
index = ARRAY_count(class->prop);
prop = ARRAY_add_void(&class->prop);
TYPE_clear(&prop->type);
prop->name = NO_SYMBOL;
prop->read = TRUE;
prop->write = decl->read == 0;
prop->synonymous = -1;
sym = CLASS_declare(class, decl->index, TK_PROPERTY, TRUE);
/*CLASS_add_symbol(class, JOB->table, decl->index, &sym, NULL);*/
sym->global.type = decl->type;
sym->global.value = ARRAY_count(class->prop) - 1;
if (TYPE_is_static(decl->type))
class->has_static = TRUE;
prop->type = decl->type;
prop->name = decl->index;
prop->line = decl->line;
prop->comment = decl->comment;
for (i = 0; i < decl->nsynonymous; i++)
{
prop = ARRAY_add_void(&class->prop);
TYPE_clear(&prop->type);
prop->name = NO_SYMBOL;
prop->read = TRUE;
prop->write = decl->read == 0;
prop->synonymous = index;
sym = CLASS_declare(class, decl->synonymous[i], TK_PROPERTY, TRUE);
/*CLASS_add_symbol(class, JOB->table, decl->index, &sym, NULL);*/
sym->global.type = decl->type;
sym->global.value = ARRAY_count(class->prop) - 1;
prop->type = decl->type;
prop->name = decl->synonymous[i];
prop->line = decl->line;
prop->comment = decl->comment;
}
}
void CLASS_add_extern(CLASS *class, TRANS_EXTERN *decl)
{
EXTFUNC *extfunc;
int i;
CLASS_SYMBOL *sym;
int count;
count = ARRAY_count(class->ext_func);
if (count >= MAX_CLASS_EXTERN)
THROW("Too many external functions");
extfunc = ARRAY_add_void(&class->ext_func);
TYPE_clear(&extfunc->type);
extfunc->nparam = 0;
extfunc->vararg = FALSE;
extfunc->name = NO_SYMBOL;
if (!decl) return;
sym = CLASS_declare(class, decl->index, TK_EXTERN, TRUE);
/*CLASS_add_symbol(class, JOB->table, decl->index, &sym, NULL);*/
sym->global.type = decl->type;
sym->global.value = ARRAY_count(class->ext_func) - 1;
extfunc->nparam = decl->nparam;
extfunc->vararg = decl->vararg;
if (extfunc->nparam)
{
ALLOC(&extfunc->param, decl->nparam * sizeof(PARAM));
for (i = 0; i < decl->nparam; i++)
{
extfunc->param[i].type = decl->param[i].type;
extfunc->param[i].index = decl->param[i].index;
}
}
extfunc->type = decl->type;
extfunc->name = decl->index;
extfunc->library = decl->library;
extfunc->alias = decl->alias;
}
int CLASS_add_constant(CLASS *class, TRANS_DECL *decl)
{
CONSTANT *desc;
int num;
num = ARRAY_count(class->constant);
if (num >= MAX_CLASS_CONST)
THROW("Too many constants");
desc = ARRAY_add(&class->constant);
desc->type = decl->type;
desc->index = decl->index;
desc->value = decl->value;
if (TYPE_get_id(decl->type) == T_LONG)
desc->lvalue = decl->lvalue;
desc->line = JOB->line;
return num;
}
static int add_class(CLASS *class, int index, bool used, bool exported)
{
int num;
CLASS_REF *desc;
CLASS_SYMBOL *sym = CLASS_get_symbol(class, index);
num = sym->class - 1;
if (num < 0)
{
num = ARRAY_count(class->class);
if (num >= MAX_CLASS_CLASS)
THROW("Too many different classes used");
desc = ARRAY_add_void(&class->class);
desc->index = index;
sym->class = num + 1;
if (JOB->verbose)
printf("Adding class %.*s %s%s\n", sym->symbol.len, sym->symbol.name, used ? "" : "Unused ", exported ? "Exported" : "");
JOB->class->class[num].exported = exported;
}
if (used != JOB->class->class[num].used)
{
if (JOB->verbose)
printf("Switching class %.*s to %s\n", sym->symbol.len, sym->symbol.name, used ? "Used" : "Unused");
JOB->class->class[num].used = used;
}
return num;
}
int CLASS_add_class(CLASS *class, int index)
{
return add_class(class, index, TRUE, FALSE);
}
int CLASS_add_class_unused(CLASS *class, int index)
{
return add_class(class, index, FALSE, FALSE);
}
int CLASS_add_class_exported(CLASS *class, int index)
{
return add_class(class, index, TRUE, TRUE);
}
int CLASS_add_class_exported_unused(CLASS *class, int index)
{
return add_class(class, index, FALSE, TRUE);
}
bool CLASS_exist_class(CLASS *class, int index)
{
return CLASS_get_symbol(class, index)->class > 0;
}
static char *CLASS_add_name(CLASS *class, const char *name, int len)
{
char *ret;
ALLOC(&ret, len + 1);
memcpy(ret, name, len);
ret[len] = 0;
*((char **)ARRAY_add(&class->names)) = ret;
return ret;
}
int CLASS_get_array_class(CLASS *class, int type, int value)
{
static char *names[] = {
NULL, "Boolean[]", "Byte[]", "Short[]", "Integer[]", "Long[]", "Single[]", "Float[]",
"Date[]", "String[]", "String[]", "Pointer[]", "Variant[]", NULL, NULL, NULL, "Object[]"
};
int index;
//CLASS_REF *cref;
if (value < 0)
{
if (type <= T_VOID || type > T_OBJECT)
ERROR_panic("Bad native array class");
index = _array_class[type];
if (index == 0)
{
if (!TABLE_find_symbol(class->table, names[type], strlen(names[type]), &index))
index = CLASS_add_symbol(class, names[type]);
index = CLASS_add_class_exported(class, index);
_array_class[type] = index;
}
JOB->class->class[index].type = TYPE_make_simple(type);
}
else
{
CLASS_SYMBOL *sym = CLASS_get_symbol(class, class->class[value].index);
int len = sym->symbol.len;
char name[len + 2];
memcpy(name, sym->symbol.name, len);
memcpy(&name[len], "[]", 2);
if (!TABLE_find_symbol(class->table, name, len + 2, &index))
{
char *name_alloc = CLASS_add_name(class, name, len + 2);
TABLE_add_symbol(class->table, name_alloc, len + 2, &index);
}
if (class->class[value].exported)
index = CLASS_add_class_exported(JOB->class, index);
else
index = CLASS_add_class(JOB->class, index);
}
/*cref = &class->class[index];
if (TYPE_is_null(cref->array))
{
cref->array.t.id = type;
cref->array.t.value = value;
}*/
return index;
}
int CLASS_add_unknown(CLASS *class, int index)
{
int num;
int *desc;
CLASS_SYMBOL *sym = CLASS_get_symbol(class, index);
num = sym->unknown - 1;
if (num < 0)
{
num = ARRAY_count(class->unknown);
if (num >= MAX_CLASS_UNKNOWN)
THROW("Too many unknown symbols");
desc = ARRAY_add(&class->unknown);
*desc = index;
sym->unknown = num + 1;
}
return num;
}
int CLASS_add_array(CLASS *class, TRANS_ARRAY *array)
{
CLASS_ARRAY *desc;
int num;
int i;
num = ARRAY_count(class->array);
if (num >= MAX_CLASS_ARRAY)
THROW("Too many array declarations");
desc = ARRAY_add(&class->array);
desc->type = array->type;
desc->ndim = array->ndim;
for (i = 0; i < desc->ndim; i++)
desc->dim[i] = array->dim[i];
return num;
}
void CLASS_begin_init_function(CLASS *class, int type)
{
FUNCTION *func = &class->function[type];
CODE_begin_function(func);
JOB->func = func;
}
void CLASS_add_declaration(CLASS *class, TRANS_DECL *decl)
{
CLASS_SYMBOL *sym;
VARIABLE *var;
int count;
bool save_warnings = FALSE;
if (decl->no_warning)
{
save_warnings = JOB->warnings;
JOB->warnings = FALSE;
}
sym = CLASS_declare(class, decl->index, TYPE_get_kind(decl->type), TRUE);
if (decl->no_warning)
{
JOB->warnings = save_warnings;
}
sym->global.type = decl->type;
if (TYPE_get_kind(decl->type) == TK_CONST)
{
sym->global.value = CLASS_add_constant(class, decl);
class->has_static = TRUE;
}
else if (TYPE_is_static(decl->type))
{
count = ARRAY_count(class->stat);
if (count >= MAX_CLASS_SYMBOL)
THROW("Too many static variables");
sym->global.value = count;
var = ARRAY_add(&class->stat);
var->type = decl->type;
var->index = decl->index;
//var->pos = class->size_stat;
//var->size = TYPE_sizeof(var->type);
//class->size_stat += var->size;
CLASS_begin_init_function(class, FUNC_INIT_STATIC);
if (TRANS_has_init_var(decl))
{
FUNCTION_add_all_pos_line();
TRANS_init_var(decl);
CODE_pop_global(sym->global.value, TRUE);
sym->global_assigned = TRUE;
}
class->has_static = TRUE;
}
else
{
count = ARRAY_count(class->dyn);
if (count >= MAX_CLASS_SYMBOL)
THROW("Too many dynamic variables");
sym->global.value = count;
var = ARRAY_add(&class->dyn);
var->type = decl->type;
var->index = decl->index;
//var->pos = class->size_dyn;
//var->size = TYPE_sizeof(var->type);
//class->size_dyn += var->size;
CLASS_begin_init_function(class, FUNC_INIT_DYNAMIC);
if (TRANS_has_init_var(decl))
{
FUNCTION_add_all_pos_line();
TRANS_init_var(decl);
CODE_pop_global(sym->global.value, FALSE);
sym->global_assigned = TRUE;
}
}
}
#if 0
static void reorder_decl(CLASS *class, VARIABLE *tvar, const char *desc)
{
int count;
int pos;
VARIABLE *var;
int i, j;
int n;
/* variables statiques */
count = ARRAY_count(tvar);
if (count > 1)
{
if (JOB->verbose)
printf("Reordering %s variables:", desc);
pos = 0;
for (i = 0; i < 3; i++)
{
for (j = 0; j < count; j++)
{
var = &tvar[j];
n = var->size & 3;
switch (i)
{
case 0: if (n != 0) continue; else break;
case 1: if (n != 2) continue; else break;
case 2: if (n != 1 && n != 3) continue; else break;
}
var->pos = pos;
pos += var->size;
if (JOB->verbose)
printf(" %s (%d) ", TABLE_get_symbol_name(class->table, var->index), var->pos);
}
}
if (JOB->verbose)
printf("\n");
}
}
#endif
// Don't do that! The order of variables must be kept.
void CLASS_sort_declaration(CLASS *class)
{
//reorder_decl(class, class->stat, "static");
//reorder_decl(class, class->dyn, "dynamic");
}
int CLASS_add_symbol(CLASS *class, const char *name)
{
int index;
TABLE_add_symbol(class->table, name, strlen(name), &index);
return index;
}
void FUNCTION_add_last_pos_line(void)
{
int current_pos;
if (!JOB->debug || JOB->nobreak)
return;
current_pos = CODE_get_current_pos();
*ARRAY_add(&JOB->func->pos_line) = current_pos;
}
void FUNCTION_add_all_pos_line(void)
{
int line;
int current_pos;
if (!JOB->debug || JOB->nobreak)
return;
line = JOB->func->line + ARRAY_count(JOB->func->pos_line) - 1;
current_pos = CODE_get_current_pos();
//fprintf(stderr, "FUNCTION_add_all_pos_line: line = %d JOB->line = %d\n", line, JOB->line);
while (line < JOB->line)
{
*ARRAY_add(&JOB->func->pos_line) = current_pos;
line++;
}
}
char *FUNCTION_get_fake_name(int func)
{
static char buf[6];
snprintf(buf, sizeof(buf), "$%d", func);
return buf;
}
static int check_one_property_func(CLASS *class, PROPERTY *prop, bool write)
{
CLASS_SYMBOL *sym;
char *name;
bool is_static;
FUNCTION *func;
int index;
JOB->line = prop->line;
is_static = TYPE_is_static(prop->type);
name = STR_copy(TABLE_get_symbol_name_suffix(class->table, prop->name, write ? "_Write" : "_Read"));
if (!TABLE_find_symbol(class->table, name, strlen(name), &index))
THROW("&1 is not declared", name);
sym = (CLASS_SYMBOL *)TABLE_get_symbol(class->table, index);
if (TYPE_get_kind(sym->global.type) != TK_FUNCTION)
THROW("&1 is declared but is not a function", name);
func = &class->function[sym->global.value];
JOB->line = func->line;
if (TYPE_is_public(sym->global.type))
THROW("A property implementation cannot be public");
if (is_static != TYPE_is_static(sym->global.type))
{
if (is_static)
THROW("&1 must be static", name);
else
THROW("&1 cannot be static", name);
}
if (write)
{
if (TYPE_get_id(func->type) != T_VOID)
goto _BAD_SIGNATURE;
if (func->nparam != 1 || func->npmin != 1)
goto _BAD_SIGNATURE;
if (!TYPE_compare(&func->param[0].type, &prop->type))
goto _BAD_SIGNATURE;
}
else
{
if (!TYPE_compare(&func->type, &prop->type))
goto _BAD_SIGNATURE;
if (func->nparam != 0 || func->npmin != 0)
goto _BAD_SIGNATURE;
}
STR_free(name);
sym->global_used = TRUE;
return sym->global.value;
_BAD_SIGNATURE:
THROW("&1 declaration does not match", name);
}
void CLASS_check_properties(CLASS *class)
{
int i;
PROPERTY *prop;
for (i = 0; i < ARRAY_count(class->prop); i++)
{
prop = &class->prop[i];
if (prop->synonymous >= 0)
{
prop->read = class->prop[prop->synonymous].read;
prop->write = class->prop[prop->synonymous].write;
}
else
{
prop->read = check_one_property_func(class, prop, FALSE);
if (prop->write)
prop->write = check_one_property_func(class, prop, TRUE);
else
prop->write = NO_SYMBOL;
}
}
}
CLASS_SYMBOL *CLASS_get_local_symbol(int local)
{
PARAM *param;
param = &JOB->func->local[local];
return (CLASS_SYMBOL *)TABLE_get_symbol(JOB->class->table, param->index);
}
char *TYPE_get_desc(TYPE type)
{
static char buf[256];
TYPE_ID id;
int value;
CLASS_SYMBOL *sym;
id = TYPE_get_id(type);
value = TYPE_get_value(type);
if (id == T_ARRAY)
{
strcpy(buf, TYPE_name[JOB->class->array[value].type.t.id]);
strcat(buf, "[]");
}
else if (id == T_OBJECT)
{
if (value == -1)
strcpy(buf, "Object");
else
{
sym = CLASS_get_symbol(JOB->class, JOB->class->class[value].index);
sprintf(buf, "%.*s", sym->symbol.len, sym->symbol.name);
}
}
else
{
strcpy(buf, TYPE_name[id]);
}
return buf;
}