Assert that references are not persisted

There should not be any need to persist references, and it's unlikely
that persisting a reference will behave correctly at runtime, because
w

Assert that references are not persisted

There should not be any need to persist references, and it's unlikely
that persisting a reference will behave correctly at runtime, because
we don't have a concept of an immutable reference.

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Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument nam

Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument name. For now, it is looked up by linear scan and
runtime cached.
* This may leave UNDEF arguments on the stack. To avoid having
to deal with them in other places, a CHECK_UNDEF_ARGS opcode
is used to either replace them with defaults, or error.
* For variadic functions, EX(extra_named_params) are collected
and need to be freed based on ZEND_CALL_HAS_EXTRA_NAMED_PARAMS.

RFC: https://wiki.php.net/rfc/named_params

Closes GH-5357.

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Fix preloading of union typed property inherited from internal class

Tricky edge case: We inherit a property from an internal class,
in which case no property duplication takes place. We

Fix preloading of union typed property inherited from internal class

Tricky edge case: We inherit a property from an internal class,
in which case no property duplication takes place. We should not
try to persist the property info in that case. This didn't really
matter previously, but now that the property has some non-interned
owned data (the type), we need to make sure we don't try to free
that.

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Check for name vs ce in a few more places

The type lists may contain CEs, we should not assume they only
contain names.

Add Attributes

Co-authored-by: Martin Schröder <m.schroeder2007@gmail.com>

Add support for replaying warnings in opcache

If opcache.record_warnings is enabled, opcache will record
compilation warnings and replay them when the file is included
again. The pri

Add support for replaying warnings in opcache

If opcache.record_warnings is enabled, opcache will record
compilation warnings and replay them when the file is included
again. The primary use case I have in mind for this is automated
testing of the opcache file cache.

This resolves bug #76535.

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Store aliased name of trait method

Currently, trait methods are aliased will continue to use the
original function name. In a few places in the codebase, we will
try to look up the a

Store aliased name of trait method

Currently, trait methods are aliased will continue to use the
original function name. In a few places in the codebase, we will
try to look up the actual method name instead. However, this does
not work if an aliased method is used indirectly
(https://bugs.php.net/bug.php?id=69180).

I think it would be better to instead actually change the method
name to the alias. This is in principle easy: We have to allow
function_name to be changed even if op array is otherwise shared
(similar to static_variables). This means we need to addref/release
the function_name separately, but I don't think there is a
performance concern here (especially as everything is usually
interned).

There is a bit of complication in opcache, where we need to make
sure that the function name is released the correct number of times
(interning may overwrite the name in the original op_array, but we
need to release it as many times as the op_array is shared).

Fixes bug #69180.
Fixes bug #74939.
Closes GH-5226.

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Use zend_type inside type lists

Instead of having a completely independent encoding for type list
entries. This is going to use more memory, but I'm not particularly
concerned about

Use zend_type inside type lists

Instead of having a completely independent encoding for type list
entries. This is going to use more memory, but I'm not particularly
concerned about that, as type unions that contain multiple classes
should be uncommon. On the other hand, this allows us to treat
top-level types and types inside lists mostly the same.

A new ZEND_TYPE_FOREACH macros allows to transparently treat list
and non-list types the same way. I'm not using it everywhere it could be
used for now, just the places that seemed most obvious.

Of course, this will make any future type system changes much simpler,
as it will not be necessary to duplicate all logic two times.

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Merge branch 'PHP-7.4'

* PHP-7.4:
Add support for class_alias to preloading
Fixed bug #78935: Check that all linked classes can be preloaded

Add support for class_alias to preloading

Related to bug #78918.

Implement union types

According to RFC: https://wiki.php.net/rfc/union_types_v2

The type representation now makes use of both the pointer payload
and the type mask at the same t

Implement union types

According to RFC: https://wiki.php.net/rfc/union_types_v2

The type representation now makes use of both the pointer payload
and the type mask at the same time. Additionall, zend_type_list is
introduced as a new kind of pointer payload, which is used to store
multiple class types. Each of the class types is a tagged pointer,
which may be either a class name or class entry. The latter is only
used for typed properties, while arguments/returns will instead use
cache slots. A type list can contain a mix of both names and CEs at
the same time, as not all classes may be resolvable.

One thing this is missing is support for union types in arginfo
and stubs, which I want to handle separately.

I've also dropped the special object code from the JIT implementation
for now -- I plan to add this back in a different form at a later time.
For now I did not want to include non-trivial JIT changes together
with large functional changes.

Another possible piece of follow-up work is to implement "iterable"
as an internal alias for "array|Traversable". I believe this will
eliminate quite a few special-cases that had to be implemented.

Closes GH-4838.

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Make zend_type a 2-field struct

We now store the pointer payload and the type mask separately. This
is in preparation for union types, where we will be using both at
the same time.

Make zend_type a 2-field struct

We now store the pointer payload and the type mask separately. This
is in preparation for union types, where we will be using both at
the same time.

To avoid increasing the size of arginfo structures, the
pass_by_reference and is_variadic fields are now stored as part of
the type_mask (8-bit are reserved for custom use).

Different types of pointer payloads are distinguished based on bits
in the type_mask.

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Fix wrong size calculation related to function name

It would be nice if we could drop this manual function name reuse
code altogether and rely on interning for it.

Fixed bug 78175 (Preloading must store default values of static variables and properties)

Use ZEND_HASH_FOREACH with direct callback, instead of callbacks

Add preloading support for typed properties

During preloading, try to resolve all property types to CEs. Add a
flag that tracks this. If not all property types can be resolved,
then

Add preloading support for typed properties

During preloading, try to resolve all property types to CEs. Add a
flag that tracks this. If not all property types can be resolved,
then the class is not eligible for preloading.

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properties_info_table may be in arena or shm

For immutable classes it should be shm instead of in arena.

Related to bug #77615.

Remove copyright years.

Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwe

Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwei9@hotmail.com>
Co-authored-by: Joe Watkins <krakjoe@php.net>
Co-authored-by: Dmitry Stogov <dmitry@zend.com>

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Revert HASH_FLAG_INITIALIZED into HASH_FLAG_UNINITIALIZED.

Remove unused do_free parameter from ADD_INTERNED_STRING

Future-proof email addresses...

Immutable clases and op_arrays.

Squashed commit of the following:

commit cd0c36c3f943849e5b97a8dbe2dd029fbeab3df9
Merge: 4740dabb84 ad6738e886
Author: Dmitry Stogov <dmitry@

Immutable clases and op_arrays.

Squashed commit of the following:

commit cd0c36c3f943849e5b97a8dbe2dd029fbeab3df9
Merge: 4740dabb84 ad6738e886
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 14:43:38 2018 +0300

Merge branch 'master' into immutable

* master:
Remove the "auto" encoding
Fixed bug #77025
Add vtbls for EUC-TW encoding

commit 4740dabb843c6d4f7f866b4a2456073c9eaf4c77
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 14:12:28 2018 +0300

Reverted back ce->iterator_funcs_ptr. Initialize ce->iterator_funcs_ptr fields in immutable classes.

commit ad7a78b253be970db70c2251e66f9297d8e7f829
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:46:30 2018 +0300

Added comment

commit 0276ea51875bab37be01a4dc5e5a047c5698c571
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:42:43 2018 +0300

Added type cast

commit c63fc5d5f19c58498108d1698055b2b442227eb3
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:36:51 2018 +0300

Moved static class members initialization into the proper place.

commit b945548e9306b1826c881918858b5e5aa3eb3002
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:21:03 2018 +0300

Removed redundand assertion

commit d5a41088401814c829847db212488f8aae39bcd2
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:19:13 2018 +0300

Removed duplicate code

commit 8dadca8864e66de70a24bdf1181bcf7dd8fb27d7
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 11:05:43 2018 +0300

Hide offset encoding magic in ZEND_MAP_PTR_IS_OFFSET(), ZEND_MAP_PTR_OFFSET2PTR() and ZEND_MAP_PTR_PTR2OFFSET() macros.

commit 9ef07c88bd76801e2d4fbfeab3ebfd6e6a67ac5f
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 10:48:29 2018 +0300

typo

commit a06f0f3d3aba53e766046221ee44fb9720389ecc
Merge: 94099586ec 3412345ffe
Author: Dmitry Stogov <dmitry@zend.com>
Date: Wed Oct 17 10:47:07 2018 +0300

Merge branch 'master' into immutable

* master:
Remove unused variable makefile_am_files
Classify object handlers are required/optional
Add support for getting SKIP_TAGSTART and SKIP_WHITE options
Remove some obsolete config_vars.mk occurrences
Remove bsd_converted from .gitignore
Remove configuration parser and scanners ignores
Remove obsolete buildconf.stamp from .gitignore
[ci skip] Add magicdata.patch exception to .gitignore
Remove outdated ext/spl/examples items from .gitignore
Remove unused test.inc in ext/iconv/tests

commit 94099586ec599117581ca01c15b1f6c5f749e23a
Author: Dmitry Stogov <dmitry@zend.com>
Date: Mon Oct 15 23:34:01 2018 +0300

Immutable clases and op_arrays

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During size calculation, pointer should be kept unchanged

Avoid useless store and checks in xlat_table.