text: /*
     +----------------------------------------------------------------------+
     | Zend Engine                                                          |
     +----------------------------------------------------------------------+
     | Copyright (c) 1998-2015 Zend Technologies Ltd. (http://www.zend.com) |
     +----------------------------------------------------------------------+
     | This source file is subject to version 2.00 of the Zend license,     |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.zend.com/license/2_00.txt.                                |
     | If you did not receive a copy of the Zend license and are unable to  |
     | obtain it through the world-wide-web, please send a note to          |
     | license@zend.com so we can mail you a copy immediately.              |
     +----------------------------------------------------------------------+
     | Authors: Andi Gutmans <andi@zend.com>                                |
     |          Zeev Suraski <zeev@zend.com>                                |
     +----------------------------------------------------------------------+
  */
  
  /* $Id$ */
  
  #include <stdio.h>
  
  #include "zend.h"
  #include "zend_alloc.h"
  #include "zend_compile.h"
  #include "zend_extensions.h"
  #include "zend_API.h"
  
  #include "zend_vm.h"
  
  static void zend_extension_op_array_ctor_handler(zend_extension *extension, zend_op_array *op_array)
  {
  	if (extension->op_array_ctor) {
  		extension->op_array_ctor(op_array);
  	}
  }
  
  static void zend_extension_op_array_dtor_handler(zend_extension *extension, zend_op_array *op_array)
  {
  	if (extension->op_array_dtor) {
  		extension->op_array_dtor(op_array);
  	}
  }
  
  static void op_array_alloc_ops(zend_op_array *op_array, uint32_t size)
  {
  	op_array->opcodes = erealloc(op_array->opcodes, size * sizeof(zend_op));
  }
  
  void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size)
  {
  	op_array->type = type;
  	op_array->arg_flags[0] = 0;
  	op_array->arg_flags[1] = 0;
  	op_array->arg_flags[2] = 0;
  
  	op_array->refcount = (uint32_t *) emalloc(sizeof(uint32_t));
  	*op_array->refcount = 1;
  	op_array->last = 0;
  	op_array->opcodes = NULL;
  	op_array_alloc_ops(op_array, initial_ops_size);
  
  	op_array->last_var = 0;
  	op_array->vars = NULL;
  
  	op_array->T = 0;
  
  	op_array->function_name = NULL;
  	op_array->filename = zend_get_compiled_filename();
  	op_array->doc_comment = NULL;
  
  	op_array->arg_info = NULL;
  	op_array->num_args = 0;
  	op_array->required_num_args = 0;
  
  	op_array->scope = NULL;
  	op_array->prototype = NULL;
  
  	op_array->brk_cont_array = NULL;
  	op_array->try_catch_array = NULL;
  	op_array->last_brk_cont = 0;
  
  	op_array->static_variables = NULL;
  	op_array->last_try_catch = 0;
  
  	op_array->this_var = -1;
  
  	op_array->fn_flags = 0;
  
  	op_array->early_binding = -1;
  
  	op_array->last_literal = 0;
  	op_array->literals = NULL;
  
  	op_array->run_time_cache = NULL;
  	op_array->cache_size = 0;
  
  	memset(op_array->reserved, 0, ZEND_MAX_RESERVED_RESOURCES * sizeof(void*));
  
  	zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_op_array_ctor_handler, op_array);
  }
  
  ZEND_API void destroy_zend_function(zend_function *function)
  {
  	if (function->type == ZEND_USER_FUNCTION) {
  		destroy_op_array(&function->op_array);
  	} else {
  		ZEND_ASSERT(function->type == ZEND_INTERNAL_FUNCTION);
  		ZEND_ASSERT(function->common.function_name);
  		zend_string_release(function->common.function_name);
  	}
  }
  
  ZEND_API void zend_function_dtor(zval *zv)
  {
  	zend_function *function = Z_PTR_P(zv);
  
  	if (function->type == ZEND_USER_FUNCTION) {
  		ZEND_ASSERT(function->common.function_name);
  		destroy_op_array(&function->op_array);
  		/* op_arrays are allocated on arena, so we don't have to free them */
  	} else {
  		ZEND_ASSERT(function->type == ZEND_INTERNAL_FUNCTION);
  		ZEND_ASSERT(function->common.function_name);
  		zend_string_release(function->common.function_name);
  		if (!(function->common.fn_flags & ZEND_ACC_ARENA_ALLOCATED)) {
  			pefree(function, 1);
  		}
  	}
  }
  
  ZEND_API void zend_cleanup_op_array_data(zend_op_array *op_array)
  {
  	if (op_array->static_variables &&
  	    !(GC_FLAGS(op_array->static_variables) & IS_ARRAY_IMMUTABLE)) {
  		zend_hash_clean(op_array->static_variables);
  	}
  }
  
  ZEND_API void zend_cleanup_user_class_data(zend_class_entry *ce)
  {
  	/* Clean all parts that can contain run-time data */
  	/* Note that only run-time accessed data need to be cleaned up, pre-defined data can
  	   not contain objects and thus are not probelmatic */
  	if (ce->ce_flags & ZEND_HAS_STATIC_IN_METHODS) {
  		zend_function *func;
  
  		ZEND_HASH_FOREACH_PTR(&ce->function_table, func) {
  			if (func->type == ZEND_USER_FUNCTION) {
  				zend_cleanup_op_array_data((zend_op_array *) func);
  			}
  		} ZEND_HASH_FOREACH_END();
  	}
  	if (ce->static_members_table) {
  		zval *static_members = ce->static_members_table;
  		zval *p = static_members;
  		zval *end = p + ce->default_static_members_count;
  
  
  		ce->default_static_members_count = 0;
  		ce->default_static_members_table = ce->static_members_table = NULL;
  		while (p != end) {
  			i_zval_ptr_dtor(p ZEND_FILE_LINE_CC);
  			p++;
  		}
  		efree(static_members);
  	}
  }
  
  ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce)
  {
  	if (CE_STATIC_MEMBERS(ce)) {
  		zval *static_members = CE_STATIC_MEMBERS(ce);
  		zval *p = static_members;
  		zval *end = p + ce->default_static_members_count;
  
  #ifdef ZTS
  		CG(static_members_table)[(zend_intptr_t)(ce->static_members_table)] = NULL;
  #else
  		ce->static_members_table = NULL;
  #endif
  		ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
  		while (p != end) {
  			i_zval_ptr_dtor(p ZEND_FILE_LINE_CC);
  			p++;
  		}
  		efree(static_members);
  	}
  }
  
  void _destroy_zend_class_traits_info(zend_class_entry *ce)
  {
  	if (ce->num_traits > 0 && ce->traits) {
  		efree(ce->traits);
  	}
  
  	if (ce->trait_aliases) {
  		size_t i = 0;
  		while (ce->trait_aliases[i]) {
  			if (ce->trait_aliases[i]->trait_method) {
  				if (ce->trait_aliases[i]->trait_method->method_name) {
  	 				zend_string_release(ce->trait_aliases[i]->trait_method->method_name);
  				}
  				if (ce->trait_aliases[i]->trait_method->class_name) {
  	 				zend_string_release(ce->trait_aliases[i]->trait_method->class_name);
  				}
  				efree(ce->trait_aliases[i]->trait_method);
  			}
  
  			if (ce->trait_aliases[i]->alias) {
  				zend_string_release(ce->trait_aliases[i]->alias);
  			}
  
  			efree(ce->trait_aliases[i]);
  			i++;
  		}
  
  		efree(ce->trait_aliases);
  	}
  
  	if (ce->trait_precedences) {
  		size_t i = 0;
  
  		while (ce->trait_precedences[i]) {
  			zend_string_release(ce->trait_precedences[i]->trait_method->method_name);
  			zend_string_release(ce->trait_precedences[i]->trait_method->class_name);
  			efree(ce->trait_precedences[i]->trait_method);
  
  			if (ce->trait_precedences[i]->exclude_from_classes) {
  				size_t j = 0;
  				zend_trait_precedence *cur_precedence = ce->trait_precedences[i];
  				while (cur_precedence->exclude_from_classes[j].class_name) {
  					zend_string_release(cur_precedence->exclude_from_classes[j].class_name);
  					j++;
  				}
  				efree(ce->trait_precedences[i]->exclude_from_classes);
  			}
  			efree(ce->trait_precedences[i]);
  			i++;
  		}
  		efree(ce->trait_precedences);
  	}
  }
  
  ZEND_API void destroy_zend_class(zval *zv)
  {
  	zend_property_info *prop_info;
  	zend_class_entry *ce = Z_PTR_P(zv);
  
  	if (--ce->refcount > 0) {
  		return;
  	}
  	switch (ce->type) {
  		case ZEND_USER_CLASS:
  			if (ce->default_properties_table) {
  				zval *p = ce->default_properties_table;
  				zval *end = p + ce->default_properties_count;
  
  				while (p != end) {
  					i_zval_ptr_dtor(p ZEND_FILE_LINE_CC);
  					p++;
  				}
  				efree(ce->default_properties_table);
  			}
  			if (ce->default_static_members_table) {
  				zval *p = ce->default_static_members_table;
  				zval *end = p + ce->default_static_members_count;
  
  				while (p != end) {
  					i_zval_ptr_dtor(p ZEND_FILE_LINE_CC);
  					p++;
  				}
  				efree(ce->default_static_members_table);
  			}
  			ZEND_HASH_FOREACH_PTR(&ce->properties_info, prop_info) {
  				if (prop_info->ce == ce || (prop_info->flags & ZEND_ACC_SHADOW)) {
  					zend_string_release(prop_info->name);
  					if (prop_info->doc_comment) {
  						zend_string_release(prop_info->doc_comment);
  					}
  				}
  			} ZEND_HASH_FOREACH_END();
  			zend_hash_destroy(&ce->properties_info);
  			zend_string_release(ce->name);
  			zend_hash_destroy(&ce->function_table);
  			zend_hash_destroy(&ce->constants_table);
  			if (ce->num_interfaces > 0 && ce->interfaces) {
  				efree(ce->interfaces);
  			}
  			if (ce->info.user.doc_comment) {
  				zend_string_release(ce->info.user.doc_comment);
  			}
  
  			_destroy_zend_class_traits_info(ce);
  
  			break;
  		case ZEND_INTERNAL_CLASS:
  			if (ce->default_properties_table) {
  				zval *p = ce->default_properties_table;
  				zval *end = p + ce->default_properties_count;
  
  				while (p != end) {
  					zval_internal_ptr_dtor(p);
  					p++;
  				}
  				free(ce->default_properties_table);
  			}
  			if (ce->default_static_members_table) {
  				zval *p = ce->default_static_members_table;
  				zval *end = p + ce->default_static_members_count;
  
  				while (p != end) {
  					zval_internal_ptr_dtor(p);
  					p++;
  				}
  				free(ce->default_static_members_table);
  			}
  			zend_hash_destroy(&ce->properties_info);
  			zend_string_release(ce->name);
  			zend_hash_destroy(&ce->function_table);
  			zend_hash_destroy(&ce->constants_table);
  			if (ce->num_interfaces > 0) {
  				free(ce->interfaces);
  			}
  			free(ce);
  			break;
  	}
  }
  
  void zend_class_add_ref(zval *zv)
  {
  	zend_class_entry *ce = Z_PTR_P(zv);
  
  	ce->refcount++;
  }
  
  ZEND_API void destroy_op_array(zend_op_array *op_array)
  {
  	zval *literal = op_array->literals;
  	zval *end;
  	uint32_t i;
  
  	if (op_array->static_variables &&
  	    !(GC_FLAGS(op_array->static_variables) & IS_ARRAY_IMMUTABLE)) {
  		if (--GC_REFCOUNT(op_array->static_variables) == 0) {
  			zend_array_destroy(op_array->static_variables);
  		}
  	}
  
  	if (op_array->run_time_cache && !op_array->function_name) {
  		efree(op_array->run_time_cache);
  		op_array->run_time_cache = NULL;
  	}
  
  	if (!op_array->refcount || --(*op_array->refcount) > 0) {
  		return;
  	}
  
  	efree_size(op_array->refcount, sizeof(*(op_array->refcount)));
  
  	if (op_array->vars) {
  		i = op_array->last_var;
  		while (i > 0) {
  			i--;
  			zend_string_release(op_array->vars[i]);
  		}
  		efree(op_array->vars);
  	}
  
  	if (literal) {
  	 	end = literal + op_array->last_literal;
  	 	while (literal < end) {
  			zval_ptr_dtor_nogc(literal);
  			literal++;
  		}
  		efree(op_array->literals);
  	}
  	efree(op_array->opcodes);
  
  	if (op_array->function_name) {
  		zend_string_release(op_array->function_name);
  	}
  	if (op_array->doc_comment) {
  		zend_string_release(op_array->doc_comment);
  	}
  	if (op_array->brk_cont_array) {
  		efree(op_array->brk_cont_array);
  	}
  	if (op_array->try_catch_array) {
  		efree(op_array->try_catch_array);
  	}
  	if (op_array->fn_flags & ZEND_ACC_DONE_PASS_TWO) {
  		zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_op_array_dtor_handler, op_array);
  	}
  	if (op_array->arg_info) {
  		int32_t num_args = op_array->num_args;
  		zend_arg_info *arg_info = op_array->arg_info;
  		int32_t i;
  
  		if (op_array->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
  			arg_info--;
  			num_args++;
  		}
  		if (op_array->fn_flags & ZEND_ACC_VARIADIC) {
  			num_args++;
  		}
  		for (i = 0 ; i < num_args; i++) {
  			if (arg_info[i].name) {
  				zend_string_release(arg_info[i].name);
  			}
  			if (arg_info[i].class_name) {
  				zend_string_release(arg_info[i].class_name);
  			}
  		}
  		efree(arg_info);
  	}
  }
  
  void init_op(zend_op *op)
  {
  	memset(op, 0, sizeof(zend_op));
  	op->lineno = CG(zend_lineno);
  	SET_UNUSED(op->result);
  }
  
  zend_op *get_next_op(zend_op_array *op_array)
  {
  	uint32_t next_op_num = op_array->last++;
  	zend_op *next_op;
  
  	if (next_op_num >= CG(context).opcodes_size) {
  		CG(context).opcodes_size *= 4;
  		op_array_alloc_ops(op_array, CG(context).opcodes_size);
  	}
  
  	next_op = &(op_array->opcodes[next_op_num]);
  
  	init_op(next_op);
  
  	return next_op;
  }
  
  int get_next_op_number(zend_op_array *op_array)
  {
  	return op_array->last;
  }
  
  zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array)
  {
  	op_array->last_brk_cont++;
  	op_array->brk_cont_array = erealloc(op_array->brk_cont_array, sizeof(zend_brk_cont_element)*op_array->last_brk_cont);
  	return &op_array->brk_cont_array[op_array->last_brk_cont-1];
  }
  
  static void zend_update_extended_info(zend_op_array *op_array)
  {
  	zend_op *opline = op_array->opcodes, *end=opline+op_array->last;
  
  	while (opline<end) {
  		if (opline->opcode == ZEND_EXT_STMT) {
  			if (opline+1<end) {
  				if ((opline+1)->opcode == ZEND_EXT_STMT) {
  					opline->opcode = ZEND_NOP;
  					opline++;
  					continue;
  				}
  				if (opline+1<end) {
  					opline->lineno = (opline+1)->lineno;
  				}
  			} else {
  				opline->opcode = ZEND_NOP;
  			}
  		}
  		opline++;
  	}
  }
  
  static void zend_extension_op_array_handler(zend_extension *extension, zend_op_array *op_array)
  {
  	if (extension->op_array_handler) {
  		extension->op_array_handler(op_array);
  	}
  }
  
  static void zend_check_finally_breakout(zend_op_array *op_array, uint32_t op_num, uint32_t dst_num)
  {
  	int i;
  
  	for (i = 0; i < op_array->last_try_catch; i++) {
  		if ((op_num < op_array->try_catch_array[i].finally_op ||
  					op_num >= op_array->try_catch_array[i].finally_end)
  				&& (dst_num >= op_array->try_catch_array[i].finally_op &&
  					 dst_num <= op_array->try_catch_array[i].finally_end)) {
  			CG(in_compilation) = 1;
  			CG(active_op_array) = op_array;
  			CG(zend_lineno) = op_array->opcodes[op_num].lineno;
  			zend_error_noreturn(E_COMPILE_ERROR, "jump into a finally block is disallowed");
  		} else if ((op_num >= op_array->try_catch_array[i].finally_op
  					&& op_num <= op_array->try_catch_array[i].finally_end)
  				&& (dst_num > op_array->try_catch_array[i].finally_end
  					|| dst_num < op_array->try_catch_array[i].finally_op)) {
  			CG(in_compilation) = 1;
  			CG(active_op_array) = op_array;
  			CG(zend_lineno) = op_array->opcodes[op_num].lineno;
  			zend_error_noreturn(E_COMPILE_ERROR, "jump out of a finally block is disallowed");
  		}
  	}
  }
  
  static void zend_resolve_fast_call(zend_op_array *op_array, uint32_t op_num)
  {
  	int i;
  	uint32_t finally_op_num = 0;
  
  	for (i = 0; i < op_array->last_try_catch; i++) {
  		if (op_num >= op_array->try_catch_array[i].finally_op
  				&& op_num < op_array->try_catch_array[i].finally_end) {
  			finally_op_num = op_array->try_catch_array[i].finally_op;
  		}
  	}
  
  	if (finally_op_num) {
  		/* Must be ZEND_FAST_CALL */
  		ZEND_ASSERT(op_array->opcodes[finally_op_num - 2].opcode == ZEND_FAST_CALL);
  		op_array->opcodes[op_num].extended_value = ZEND_FAST_CALL_FROM_FINALLY;
  		op_array->opcodes[op_num].op2.opline_num = finally_op_num - 2;
  	}
  }
  
  static void zend_resolve_finally_ret(zend_op_array *op_array, uint32_t op_num)
  {
  	int i;
  	uint32_t catch_op_num = 0, finally_op_num = 0;
  
  	for (i = 0; i < op_array->last_try_catch; i++) {
  		if (op_array->try_catch_array[i].try_op > op_num) {
  			break;
  		}
  		if (op_num < op_array->try_catch_array[i].finally_op) {
  			finally_op_num = op_array->try_catch_array[i].finally_op;
  		}
  		if (op_num < op_array->try_catch_array[i].catch_op) {
  			catch_op_num = op_array->try_catch_array[i].catch_op;
  		}
  	}
  
  	if (finally_op_num && (!catch_op_num || catch_op_num >= finally_op_num)) {
  		/* in case of unhandled exception return to upward finally block */
  		op_array->opcodes[op_num].extended_value = ZEND_FAST_RET_TO_FINALLY;
  		op_array->opcodes[op_num].op2.opline_num = finally_op_num;
  	} else if (catch_op_num) {
  		/* in case of unhandled exception return to upward catch block */
  		op_array->opcodes[op_num].extended_value = ZEND_FAST_RET_TO_CATCH;
  		op_array->opcodes[op_num].op2.opline_num = catch_op_num;
  	}
  }
  
  static uint32_t zend_get_brk_cont_target(const zend_op_array *op_array, const zend_op *opline) {
  	int nest_levels = opline->op2.num;
  	int array_offset = opline->op1.num;
  	zend_brk_cont_element *jmp_to;
  	do {
  		jmp_to = &op_array->brk_cont_array[array_offset];
  		if (nest_levels > 1) {
  			array_offset = jmp_to->parent;
  		}
  	} while (--nest_levels > 0);
  
  	return opline->opcode == ZEND_BRK ? jmp_to->brk : jmp_to->cont;
  }
  
  ZEND_API int pass_two(zend_op_array *op_array)
  {
  	zend_op *opline, *end;
  
  	if (!ZEND_USER_CODE(op_array->type)) {
  		return 0;
  	}
  	if (CG(compiler_options) & ZEND_COMPILE_EXTENDED_INFO) {
  		zend_update_extended_info(op_array);
  	}
  	if (CG(compiler_options) & ZEND_COMPILE_HANDLE_OP_ARRAY) {
  		zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t) zend_extension_op_array_handler, op_array);
  	}
  
  	if (CG(context).vars_size != op_array->last_var) {
  		op_array->vars = (zend_string**) erealloc(op_array->vars, sizeof(zend_string*)*op_array->last_var);
  		CG(context).vars_size = op_array->last_var;
  	}
  	if (CG(context).opcodes_size != op_array->last) {
  		op_array->opcodes = (zend_op *) erealloc(op_array->opcodes, sizeof(zend_op)*op_array->last);
  		CG(context).opcodes_size = op_array->last;
  	}
  	if (CG(context).literals_size != op_array->last_literal) {
  		op_array->literals = (zval*)erealloc(op_array->literals, sizeof(zval) * op_array->last_literal);
  		CG(context).literals_size = op_array->last_literal;
  	}
  	opline = op_array->opcodes;
  	end = opline + op_array->last;
  	while (opline < end) {
  		switch (opline->opcode) {
  			case ZEND_FAST_CALL:
  				opline->op1.opline_num = op_array->try_catch_array[opline->op1.num].finally_op;
  				zend_resolve_fast_call(op_array, opline - op_array->opcodes);
  				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op1);
  				break;
  			case ZEND_FAST_RET:
  				zend_resolve_finally_ret(op_array, opline - op_array->opcodes);
  				break;
  			case ZEND_DECLARE_ANON_INHERITED_CLASS:
  				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op1);
  				/* break omitted intentionally */
  			case ZEND_DECLARE_INHERITED_CLASS:
  			case ZEND_DECLARE_INHERITED_CLASS_DELAYED:
  				opline->extended_value = (uint32_t)(zend_intptr_t)ZEND_CALL_VAR_NUM(NULL, op_array->last_var + opline->extended_value);
  				break;
  			case ZEND_BRK:
  			case ZEND_CONT:
  				{
  					uint32_t jmp_target = zend_get_brk_cont_target(op_array, opline);
  
  					if (op_array->fn_flags & ZEND_ACC_HAS_FINALLY_BLOCK) {
  						zend_check_finally_breakout(op_array, opline - op_array->opcodes, jmp_target);
  					}
  					opline->opcode = ZEND_JMP;
  					opline->op1.opline_num = jmp_target;
  					opline->op2.num = 0;
  					ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op1);
  				}
  				break;
  			case ZEND_GOTO:
  				zend_resolve_goto_label(op_array, opline);
  				if (op_array->fn_flags & ZEND_ACC_HAS_FINALLY_BLOCK) {
  					zend_check_finally_breakout(op_array, opline - op_array->opcodes, opline->op1.opline_num);
  				}
  				/* break omitted intentionally */
  			case ZEND_JMP:
  			case ZEND_DECLARE_ANON_CLASS:
  				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op1);
  				break;
  			case ZEND_JMPZNZ:
  				/* absolute index to relative offset */
  				opline->extended_value = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline->extended_value);
  				/* break omitted intentionally */
  			case ZEND_JMPZ:
  			case ZEND_JMPNZ:
  			case ZEND_JMPZ_EX:
  			case ZEND_JMPNZ_EX:
  			case ZEND_JMP_SET:
  			case ZEND_COALESCE:
  			case ZEND_NEW:
  			case ZEND_FE_RESET_R:
  			case ZEND_FE_RESET_RW:
  			case ZEND_ASSERT_CHECK:
  				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op2);
  				break;
  			case ZEND_FE_FETCH_R:
  			case ZEND_FE_FETCH_RW:
  				opline->extended_value = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline->extended_value);
  				break;
  			case ZEND_VERIFY_RETURN_TYPE:
  				if (op_array->fn_flags & ZEND_ACC_GENERATOR) {
  					if (opline->op1_type != IS_UNUSED) {
  						(opline + 1)->op1 = opline->op1;
  						(opline + 1)->op1_type = opline->op1_type;
  					}
  					MAKE_NOP(opline);
  				}
  				break;
  			case ZEND_RETURN:
  			case ZEND_RETURN_BY_REF:
  				if (op_array->fn_flags & ZEND_ACC_GENERATOR) {
  					opline->opcode = ZEND_GENERATOR_RETURN;
  				}
  				break;
  		}
  		if (opline->op1_type == IS_CONST) {
  			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op1);
  		} else if (opline->op1_type & (IS_VAR|IS_TMP_VAR)) {
  			opline->op1.var = (uint32_t)(zend_intptr_t)ZEND_CALL_VAR_NUM(NULL, op_array->last_var + opline->op1.var);
  		}
  		if (opline->op2_type == IS_CONST) {
  			ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline->op2);
  		} else if (opline->op2_type & (IS_VAR|IS_TMP_VAR)) {
  			opline->op2.var = (uint32_t)(zend_intptr_t)ZEND_CALL_VAR_NUM(NULL, op_array->last_var + opline->op2.var);
  		}
  		if (opline->result_type & (IS_VAR|IS_TMP_VAR)) {
  			opline->result.var = (uint32_t)(zend_intptr_t)ZEND_CALL_VAR_NUM(NULL, op_array->last_var + opline->result.var);
  		}
  		ZEND_VM_SET_OPCODE_HANDLER(opline);
  		opline++;
  	}
  
  	op_array->fn_flags |= ZEND_ACC_DONE_PASS_TWO;
  	return 0;
  }
  
  ZEND_API unary_op_type get_unary_op(int opcode)
  {
  	switch (opcode) {
  		case ZEND_BW_NOT:
  			return (unary_op_type) bitwise_not_function;
  		case ZEND_BOOL_NOT:
  			return (unary_op_type) boolean_not_function;
  		default:
  			return (unary_op_type) NULL;
  	}
  }
  
  ZEND_API binary_op_type get_binary_op(int opcode)
  {
  	switch (opcode) {
  		case ZEND_ADD:
  		case ZEND_ASSIGN_ADD:
  			return (binary_op_type) add_function;
  		case ZEND_SUB:
  		case ZEND_ASSIGN_SUB:
  			return (binary_op_type) sub_function;
  		case ZEND_MUL:
  		case ZEND_ASSIGN_MUL:
  			return (binary_op_type) mul_function;
  		case ZEND_POW:
  			return (binary_op_type) pow_function;
  		case ZEND_DIV:
  		case ZEND_ASSIGN_DIV:
  			return (binary_op_type) div_function;
  		case ZEND_MOD:
  		case ZEND_ASSIGN_MOD:
  			return (binary_op_type) mod_function;
  		case ZEND_SL:
  		case ZEND_ASSIGN_SL:
  			return (binary_op_type) shift_left_function;
  		case ZEND_SR:
  		case ZEND_ASSIGN_SR:
  			return (binary_op_type) shift_right_function;
  		case ZEND_FAST_CONCAT:
  		case ZEND_CONCAT:
  		case ZEND_ASSIGN_CONCAT:
  			return (binary_op_type) concat_function;
  		case ZEND_IS_IDENTICAL:
  			return (binary_op_type) is_identical_function;
  		case ZEND_IS_NOT_IDENTICAL:
  			return (binary_op_type) is_not_identical_function;
  		case ZEND_IS_EQUAL:
  			return (binary_op_type) is_equal_function;
  		case ZEND_IS_NOT_EQUAL:
  			return (binary_op_type) is_not_equal_function;
  		case ZEND_IS_SMALLER:
  			return (binary_op_type) is_smaller_function;
  		case ZEND_IS_SMALLER_OR_EQUAL:
  			return (binary_op_type) is_smaller_or_equal_function;
  		case ZEND_SPACESHIP:
  			return (binary_op_type) compare_function;
  		case ZEND_BW_OR:
  		case ZEND_ASSIGN_BW_OR:
  			return (binary_op_type) bitwise_or_function;
  		case ZEND_BW_AND:
  		case ZEND_ASSIGN_BW_AND:
  			return (binary_op_type) bitwise_and_function;
  		case ZEND_BW_XOR:
  		case ZEND_ASSIGN_BW_XOR:
  			return (binary_op_type) bitwise_xor_function;
  		case ZEND_BOOL_XOR:
  			return (binary_op_type) boolean_xor_function;
  		default:
  			return (binary_op_type) NULL;
  	}
  }
  
  /*
   * Local variables:
   * tab-width: 4
   * c-basic-offset: 4
   * indent-tabs-mode: t
   * End:
   */
  