294 lines
6 KiB
C
294 lines
6 KiB
C
/***************************************************************************
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gbx_exec_pop.c
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(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#include "gb_common.h"
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#include "gb_limit.h"
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#include "gbx_exec.h"
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#include "gbx_string.h"
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#include "gbx_object.h"
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#include "gbx_c_array.h"
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#include "gbx_c_collection.h"
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#include "gbx_api.h"
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#include "gbx_struct.h"
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void EXEC_pop_unknown(void)
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{
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static void *jump[] = {
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/* 0 */ &&_POP_GENERIC,
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/* 1 */ &&_POP_VARIABLE,
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/* 2 */ &&_POP_STATIC_VARIABLE,
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/* 3 */ &&_POP_PROPERTY,
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/* 4 */ &&_POP_VARIABLE_AUTO,
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/* 5 */ &&_POP_PROPERTY_AUTO,
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/* 6 */ &&_POP_STRUCT_FIELD
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};
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const char *name;
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int index;
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CLASS_DESC *desc;
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CLASS *class;
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OBJECT *object;
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char *addr;
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bool defined;
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VALUE *val;
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defined = EXEC_object(&SP[-1], &class, &object);
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/*printf("> exec_pop_unknown: SP = %p -> %p\n", SP, SP->_string.addr);*/
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goto *jump[*PC & 0xF];
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_POP_GENERIC:
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name = CP->load->unknown[PC[1]];
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// The first time we access a symbol, we must not be virtual to find it
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val = &SP[-1];
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if (defined && object && !VALUE_is_super(val))
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index = CLASS_find_symbol(val->_object.class, name);
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else
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index = CLASS_find_symbol(class, name);
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if (index == NO_SYMBOL)
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{
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if (class->special[SPEC_UNKNOWN] == NO_SYMBOL)
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{
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if (defined && object && !VALUE_is_super(val))
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class = val->_object.class;
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THROW(E_NSYMBOL, CLASS_get_name(class), name);
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}
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goto _POP_UNKNOWN_PROPERTY;
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}
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desc = class->table[index].desc;
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switch (CLASS_DESC_get_type(desc))
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{
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case CD_CONSTANT:
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THROW(E_NPROPERTY, CLASS_get_name(class), name);
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case CD_VARIABLE:
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if (object == NULL)
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{
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if (!class->auto_create)
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THROW(E_DYNAMIC, CLASS_get_name(class), name);
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object = EXEC_auto_create(class, TRUE);
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*PC |= 4;
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}
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else
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{
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if (defined) *PC |= 1;
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}
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if (defined)
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PC[1] = index;
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goto _POP_VARIABLE_2;
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case CD_STRUCT_FIELD:
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if (object == NULL)
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THROW(E_DYNAMIC, CLASS_get_name(class), name);
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if (defined)
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{
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*PC |= 6;
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PC[1] = index;
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}
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if (desc->variable.ctype.id == TC_STRUCT || desc->variable.ctype.id == TC_ARRAY)
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THROW(E_NWRITE, CLASS_get_name(class), name);
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goto _POP_STRUCT_FIELD_2;
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case CD_STATIC_VARIABLE:
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if (object)
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THROW(E_STATIC, CLASS_get_name(class), name);
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if (defined) *PC |= 2;
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if (defined)
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PC[1] = index;
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goto _POP_STATIC_VARIABLE_2;
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case CD_PROPERTY:
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if (object == NULL)
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{
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if (!class->auto_create)
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THROW(E_DYNAMIC, CLASS_get_name(class), name);
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object = EXEC_auto_create(class, TRUE);
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*PC |= 5;
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}
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else
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{
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if (defined) *PC |= 3;
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}
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if (defined)
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PC[1] = index;
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goto _POP_PROPERTY_2;
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case CD_STATIC_PROPERTY:
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if (object)
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THROW(E_STATIC, CLASS_get_name(class), name);
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if (defined) *PC |= 3;
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if (defined)
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PC[1] = index;
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goto _POP_PROPERTY_2;
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case CD_PROPERTY_READ:
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case CD_STATIC_PROPERTY_READ:
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THROW(E_NWRITE, CLASS_get_name(class), name);
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case CD_METHOD:
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case CD_STATIC_METHOD:
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THROW(E_NPROPERTY, CLASS_get_name(class), name);
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default:
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THROW(E_NSYMBOL, CLASS_get_name(class), name);
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}
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_POP_VARIABLE_AUTO:
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object = EXEC_auto_create(class, TRUE);
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_POP_VARIABLE:
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desc = class->table[PC[1]].desc;
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_POP_VARIABLE_2:
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addr = (char *)object + desc->variable.offset;
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VALUE_write(&SP[-2], (void *)addr, desc->variable.type);
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goto _FIN;
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_POP_STATIC_VARIABLE:
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desc = class->table[PC[1]].desc;
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_POP_STATIC_VARIABLE_2:
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addr = (char *)desc->variable.class->stat + desc->variable.offset;
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VALUE_write(&SP[-2], (void *)addr, desc->variable.type);
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goto _FIN;
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_POP_STRUCT_FIELD:
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desc = class->table[PC[1]].desc;
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_POP_STRUCT_FIELD_2:
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if (((CSTRUCT *)object)->ref)
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addr = (char *)((CSTATICSTRUCT *)object)->addr + desc->variable.offset;
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else
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addr = (char *)object + sizeof(CSTRUCT) + desc->variable.offset;
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VALUE_write(&SP[-2], (void *)addr, desc->variable.type);
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goto _FIN;
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_POP_PROPERTY_AUTO:
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object = EXEC_auto_create(class, TRUE);
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_POP_PROPERTY:
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desc = class->table[PC[1]].desc;
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_POP_PROPERTY_2:
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VALUE_conv(&SP[-2], desc->property.type);
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if (desc->property.native)
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{
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if (EXEC_call_native(desc->property.write, object, 0, &SP[-2]))
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PROPAGATE();
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}
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else
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{
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*SP = SP[-2];
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PUSH();
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EXEC.class = desc->property.class;
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EXEC.object = object;
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EXEC.nparam = 1;
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EXEC.native = FALSE;
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EXEC.index = (int)(intptr_t)desc->property.write;
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EXEC_function();
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}
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goto _FIN;
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_POP_UNKNOWN_PROPERTY:
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if (class->special[SPEC_PROPERTY] == NO_SYMBOL)
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goto _NOT_A_PROPERTY;
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EXEC_unknown_name = name;
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if (EXEC_special(SPEC_PROPERTY, class, class->property_static ? NULL : object, 0, FALSE))
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goto _NOT_A_PROPERTY;
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VALUE_conv_boolean(&SP[-1]);
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SP--;
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if (!SP->_boolean.value)
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goto _NOT_A_PROPERTY;
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EXEC_unknown_name = name;
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*SP = SP[-2];
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PUSH();
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EXEC_special(SPEC_UNKNOWN, class, class->unknown_static ? NULL : object, 1, TRUE);
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goto _FIN;
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_NOT_A_PROPERTY:
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THROW(E_NPROPERTY, CLASS_get_name(class), name);
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_FIN:
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RELEASE(&SP[-2]);
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OBJECT_UNREF(object);
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SP -= 2;
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PC++;
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}
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