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/*
+----------------------------------------------------------------------+
| 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: Nikita Popov <nikic@php.net> |
| Bob Weinand <bobwei9@hotmail.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_GENERATORS_H
#define ZEND_GENERATORS_H
BEGIN_EXTERN_C()
extern ZEND_API zend_class_entry *zend_ce_generator;
extern ZEND_API zend_class_entry *zend_ce_ClosedGeneratorException;
typedef struct _zend_generator_node zend_generator_node;
typedef struct _zend_generator zend_generator;
struct _zend_generator_node {
zend_generator *parent; /* NULL for root */
uint32_t children;
union {
HashTable ht; /* if > 4 children */
struct {
zend_generator *leaf;
zend_generator *child;
} array[4]; /* if <= 4 children */
} child;
union {
zend_generator *leaf; /* if > 0 children */
zend_generator *root; /* if 0 children */
} ptr;
};
struct _zend_generator {
zend_object std;
zend_object_iterator *iterator;
/* The suspended execution context. */
zend_execute_data *execute_data;
/* The separate stack used by generator */
zend_vm_stack stack;
/* Current value */
zval value;
/* Current key */
zval key;
/* Return value */
zval retval;
/* Variable to put sent value into */
zval *send_target;
/* Largest used integer key for auto-incrementing keys */
zend_long largest_used_integer_key;
/* Values specified by "yield from" to yield from this generator.
* This is only used for arrays or non-generator Traversables.
* This zval also uses the u2 structure in the same way as
* by-value foreach. */
zval values;
/* Node of waiting generators when multiple "yield *" expressions
* are nested. */
zend_generator_node node;
/* Fake execute_data for stacktraces */
zend_execute_data execute_fake;
/* ZEND_GENERATOR_* flags */
zend_uchar flags;
};
static const zend_uchar ZEND_GENERATOR_CURRENTLY_RUNNING = 0x1;
static const zend_uchar ZEND_GENERATOR_FORCED_CLOSE = 0x2;
static const zend_uchar ZEND_GENERATOR_AT_FIRST_YIELD = 0x4;
static const zend_uchar ZEND_GENERATOR_DO_INIT = 0x8;
void zend_register_generator_ce(void);
ZEND_API void zend_generator_create_zval(zend_execute_data *call, zend_op_array *op_array, zval *return_value);
ZEND_API void zend_generator_close(zend_generator *generator, zend_bool finished_execution);
ZEND_API void zend_generator_resume(zend_generator *generator);
void zend_generator_yield_from(zend_generator *this, zend_generator *from);
ZEND_API zend_generator *zend_generator_get_current(zend_generator *generator);
ZEND_API zend_execute_data *zend_generator_check_placeholder_frame(zend_execute_data *ptr);
END_EXTERN_C()
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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