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Removed support for break/continue $var syntax

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This commit is contained in:
Dmitry Stogov 2010-11-24 12:19:56 +00:00
parent bf05cc7490
commit 7628da98c4
5 changed files with 46 additions and 131 deletions
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1
NEWS
View File

@ -5,6 +5,7 @@ PHP NEWS
- Upgraded bundled PCRE to version 8.10. (Ilia)
- Removed legacy features:
. break/continue $var syntax. (Dmitry)
. Safe mode and all related ini options. (Kalle)
. register_globals and register_long_arrays ini options. (Kalle)
. import_request_variables(). (Kalle)

5
Zend/zend_compile.c
View File

@ -4302,6 +4302,11 @@ void zend_do_brk_cont(zend_uchar op, const znode *expr TSRMLS_DC) /* {{{ */
opline->op1.opline_num = CG(context).current_brk_cont;
SET_UNUSED(opline->op1);
if (expr) {
if (expr->op_type != IS_CONST) {
zend_error(E_COMPILE_ERROR, "'%s' operator with non-constant operand is no longer supported", op == ZEND_BRK ? "break" : "continue");
} else if (Z_TYPE(expr->u.constant) != IS_LONG || Z_LVAL(expr->u.constant) < 1) {
zend_error(E_COMPILE_ERROR, "'%s' operator accepts only positive numbers", op == ZEND_BRK ? "break" : "continue");
}
SET_NODE(opline->op2, expr);
} else {
LITERAL_LONG(opline->op2, 1);

13
Zend/zend_execute.c
View File

@ -1362,21 +1362,12 @@ static void zend_fetch_property_address(temp_variable *result, zval **container_
}
}
static inline zend_brk_cont_element* zend_brk_cont(zval *nest_levels_zval, int array_offset, const zend_op_array *op_array, const temp_variable *Ts TSRMLS_DC)
static inline zend_brk_cont_element* zend_brk_cont(int nest_levels, int array_offset, const zend_op_array *op_array, const temp_variable *Ts TSRMLS_DC)
{
zval tmp;
int nest_levels, original_nest_levels;
int original_nest_levels = nest_levels;
zend_brk_cont_element *jmp_to;
if (nest_levels_zval->type != IS_LONG) {
tmp = *nest_levels_zval;
zval_copy_ctor(&tmp);
convert_to_long(&tmp);
nest_levels = tmp.value.lval;
} else {
nest_levels = nest_levels_zval->value.lval;
}
original_nest_levels = nest_levels;
do {
if (array_offset==-1) {
zend_error_noreturn(E_ERROR, "Cannot break/continue %d level%s", original_nest_levels, (original_nest_levels == 1) ? "" : "s");

12
Zend/zend_vm_def.h
View File

@ -3171,27 +3171,25 @@ ZEND_VM_HANDLER(52, ZEND_BOOL, CONST|TMP|VAR|CV, ANY)
ZEND_VM_NEXT_OPCODE();
}
ZEND_VM_HANDLER(50, ZEND_BRK, ANY, CONST|TMP|VAR|CV)
ZEND_VM_HANDLER(50, ZEND_BRK, ANY, CONST)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(GET_OP2_ZVAL_PTR(BP_VAR_R), opline->op1.opline_num,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
FREE_OP2();
ZEND_VM_JMP(EX(op_array)->opcodes + el->brk);
}
ZEND_VM_HANDLER(51, ZEND_CONT, ANY, CONST|TMP|VAR|CV)
ZEND_VM_HANDLER(51, ZEND_CONT, ANY, CONST)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(GET_OP2_ZVAL_PTR(BP_VAR_R), opline->op1.opline_num,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
FREE_OP2();
ZEND_VM_JMP(EX(op_array)->opcodes + el->cont);
@ -3204,7 +3202,7 @@ ZEND_VM_HANDLER(100, ZEND_GOTO, ANY, CONST)
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(opline->op2.zv, opline->extended_value,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->extended_value,
EX(op_array), EX_Ts() TSRMLS_CC);
brk_opline = EX(op_array)->opcodes + el->brk;

146
Zend/zend_vm_execute.h
View File

@ -1304,11 +1304,10 @@ static int ZEND_FASTCALL ZEND_RECV_INIT_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_
static int ZEND_FASTCALL ZEND_BRK_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(opline->op2.zv, opline->op1.opline_num,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
ZEND_VM_JMP(EX(op_array)->opcodes + el->brk);
@ -1317,11 +1316,10 @@ static int ZEND_FASTCALL ZEND_BRK_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
static int ZEND_FASTCALL ZEND_CONT_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(opline->op2.zv, opline->op1.opline_num,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
ZEND_VM_JMP(EX(op_array)->opcodes + el->cont);
@ -1334,7 +1332,7 @@ static int ZEND_FASTCALL ZEND_GOTO_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(opline->op2.zv, opline->extended_value,
el = zend_brk_cont(Z_LVAL_P(opline->op2.zv), opline->extended_value,
EX(op_array), EX_Ts() TSRMLS_CC);
brk_opline = EX(op_array)->opcodes + el->brk;
@ -1477,32 +1475,6 @@ static int ZEND_FASTCALL ZEND_INIT_FCALL_BY_NAME_SPEC_TMP_HANDLER(ZEND_OPCODE_H
}
static int ZEND_FASTCALL ZEND_BRK_SPEC_TMP_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_tmp(opline->op2.var, EX_Ts(), &free_op2 TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
zval_dtor(free_op2.var);
ZEND_VM_JMP(EX(op_array)->opcodes + el->brk);
}
static int ZEND_FASTCALL ZEND_CONT_SPEC_TMP_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_tmp(opline->op2.var, EX_Ts(), &free_op2 TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
zval_dtor(free_op2.var);
ZEND_VM_JMP(EX(op_array)->opcodes + el->cont);
}
static int ZEND_FASTCALL ZEND_FETCH_CLASS_SPEC_VAR_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
@ -1599,32 +1571,6 @@ static int ZEND_FASTCALL ZEND_INIT_FCALL_BY_NAME_SPEC_VAR_HANDLER(ZEND_OPCODE_H
}
static int ZEND_FASTCALL ZEND_BRK_SPEC_VAR_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_var(opline->op2.var, EX_Ts(), &free_op2 TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
if (free_op2.var) {zval_ptr_dtor(&free_op2.var);};
ZEND_VM_JMP(EX(op_array)->opcodes + el->brk);
}
static int ZEND_FASTCALL ZEND_CONT_SPEC_VAR_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_free_op free_op2;
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_var(opline->op2.var, EX_Ts(), &free_op2 TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
if (free_op2.var) {zval_ptr_dtor(&free_op2.var);};
ZEND_VM_JMP(EX(op_array)->opcodes + el->cont);
}
static int ZEND_FASTCALL ZEND_FETCH_CLASS_SPEC_UNUSED_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
@ -1754,32 +1700,6 @@ static int ZEND_FASTCALL ZEND_INIT_FCALL_BY_NAME_SPEC_CV_HANDLER(ZEND_OPCODE_HA
}
static int ZEND_FASTCALL ZEND_BRK_SPEC_CV_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_cv_BP_VAR_R(EX_CVs(), opline->op2.var TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
ZEND_VM_JMP(EX(op_array)->opcodes + el->brk);
}
static int ZEND_FASTCALL ZEND_CONT_SPEC_CV_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
zend_brk_cont_element *el;
SAVE_OPLINE();
el = zend_brk_cont(_get_zval_ptr_cv_BP_VAR_R(EX_CVs(), opline->op2.var TSRMLS_CC), opline->op1.opline_num,
EX(op_array), EX_Ts() TSRMLS_CC);
ZEND_VM_JMP(EX(op_array)->opcodes + el->cont);
}
static int ZEND_FASTCALL ZEND_BW_NOT_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
USE_OPLINE
@ -36791,55 +36711,55 @@ void zend_init_opcodes_handlers(void)
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CONST_HANDLER,
ZEND_BRK_SPEC_TMP_HANDLER,
ZEND_BRK_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CONST_HANDLER,
ZEND_BRK_SPEC_TMP_HANDLER,
ZEND_BRK_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CONST_HANDLER,
ZEND_BRK_SPEC_TMP_HANDLER,
ZEND_BRK_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CONST_HANDLER,
ZEND_BRK_SPEC_TMP_HANDLER,
ZEND_BRK_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CONST_HANDLER,
ZEND_BRK_SPEC_TMP_HANDLER,
ZEND_BRK_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BRK_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CONST_HANDLER,
ZEND_CONT_SPEC_TMP_HANDLER,
ZEND_CONT_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CONST_HANDLER,
ZEND_CONT_SPEC_TMP_HANDLER,
ZEND_CONT_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CONST_HANDLER,
ZEND_CONT_SPEC_TMP_HANDLER,
ZEND_CONT_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CONST_HANDLER,
ZEND_CONT_SPEC_TMP_HANDLER,
ZEND_CONT_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CONST_HANDLER,
ZEND_CONT_SPEC_TMP_HANDLER,
ZEND_CONT_SPEC_VAR_HANDLER,
ZEND_NULL_HANDLER,
ZEND_CONT_SPEC_CV_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_NULL_HANDLER,
ZEND_BOOL_SPEC_CONST_HANDLER,
ZEND_BOOL_SPEC_CONST_HANDLER,
ZEND_BOOL_SPEC_CONST_HANDLER,