* fix(compiler): support first-class callable of internal functions
PHP 8.1 `foo(...)` builds a Closure from a single VariadicPlaceholder
argument instead of calling foo. Two paths mishandled it:
- checkInternalFunctionArgCount() counted the placeholder as a real
argument, so first-class callables of internal functions requiring 2+
parameters (e.g. `posix_kill(...)`) failed with a bogus "expects at
least N arguments, 1 given".
- The math-function return-type optimization read `$expr->args[0]->value`
on callables such as `round(...)`, crashing on the undefined
VariadicPlaceholder::$value property.
Guard both with isFirstClassCallable() so the expression falls through to
Closure (Type::OBJECT) resolution.
* fix(compiler): infer builtin callables before return optimizations
---------
Co-authored-by: Tinywan <tinywan@gmail.com>
- Removed redundant zval macro handling for property access
- Replaced Z_LVAL_P and Z_DVAL_P calls with direct attribute accessors
- Updated property getter logic to use attrInt and attrFloat methods
- Modified tests to match new property access pattern
- Added comprehensive test case for inherited property reference handling
- Allow int, float, bool, string, and array Native Class properties to be passed
directly to matching reference parameters on statically resolved calls
- Generate call-scoped C++ T& bindings for typed reference parameters instead
of creating Zend references
- Maintain compile-time rooting of Native receiver objects during typed calls
- Add new parseNativeTypedPropertyReferenceArg method to handle typed property
reference arguments
- Update documentation to reflect new typed reference capabilities for fixed
Native properties
- Create new test case covering typed property reference functionality
- Modify changelog to document the
- Implement Android platform class with API level detection and compiler configuration
- Add Android-specific library linking with proper archive grouping and system libraries
- Integrate Android target detection and SDK directory resolution in build configuration
- Add Android-specific compile flags including static libstdc++ and security hardening
- Include Android platform support in translator and compiler base classes
- Add PHPX_ANDROID=1 define flag for Android builds
- Support
- Updated std::any to accept zero or one arguments instead of requiring exactly one
- When no argument is provided, std::any now returns null by default
- Modified parser logic to handle omitted parameter case in FunctionCallTrait
- Updated documentation in both English and Chinese to reflect optional parameter syntax
- Added test case demonstrating std::any() call without parameters returning null
- Changed error message to indicate zero or one argument requirement instead of exactly one
- Replace any() with std::any() in test files and compiler logic
- Replace refval() with std::ref() for reference wrapping operations
- Replace expected() with std::expected() for branch prediction hints
- Replace unexpected() with std::unexpected() for branch prediction hints
- Remove deprecated objval() function and use toObject() keyword method
- Update parser to recognize std:: class expressions with case insensitivity
- Add comprehensive changelog documenting breaking API changes
- Update documentation to reflect new std:: namespace conventions
- Add tests for case-insensitive std class and method names
- Verify global function names remain available for user-defined functions
- Replace ArgList with VarList for fixed argument arrays to avoid dynamic Args allocation
- Add call argument limit assertion to prevent unbounded call generation
- Implement direct static method calls using callStaticMethod when possible
- Add alternating dynamic static call benchmarks for class and method variations
- Update documentation on request-local call slot destruction requirements
- Fix dynamic static call target evaluation order to precede argument evaluation
- Add tests for call argument limits and dynamic class evaluation ordering
- Add function call cache infrastructure with typephp_call_cached wrapper
- Implement method call caching using typephp_call_method_cached for named methods
- Add scoped method call caching via typephp_call_method_scoped_cached for dynamic scopes
- Create late-static-bound class entry tracking with getCalledCeExpr and getCalledClassExpr
- Implement lazy static property slot resolution with typephp_get_static_property_cached
- Add benchmark cases for dynamic static method calls and scoped method invocations
- Update call cache test expectations to reflect new cached call implementations
- Integrate call caching into function and method call compilation paths
- Add nullsafe method call caching support in nullsafe access trait
- Implement static property slot registration and resolution mechanisms
- Update native property handling to use cached static property access
- Add comprehensive test coverage for various dynamic call scenarios
- Implement exact-class fast path for zero-argument late-static calls with fallback mechanism
- Add static property fetch resolution using typephp_get_static_property symbol
- Enhance isset operations on static array properties with direct typephp_array_isset calls
- Update class reference detection to return Type::STR for class constant fetch expressions
- Add benchmark suite for static cache performance measurement including late static dispatch
- Modify compiler symbols to use typephp variants for called class and static property access
- Create comprehensive tests for static array single offset presence and late static call exact guards
- Update unit tests to reflect new symbol names and variable
- Add forceArrayArgs parameter to CallArgumentGenerator methods to properly handle
named arguments with setValue method instead of set
- Implement direct foreach array target optimization to improve iteration
performance by allowing direct assignment to variant variables
- Add comprehensive tests for dynamic call cache argument preservation
including small, large, named, unpacked, reference, and exception arguments
- Add tests for dynamic property access with string, referenced-string, and
converted names
- Add tests for foreach direct array targets preserving keys, values, references
- Update CI workflows to checkout PHPX from third_party directory instead of vendor
- Add smoke test for full static builds to verify module globals setup
- Enhance benchmark suite with additional dynamic call cases for different
argument counts (zero, two, four args) to separate cache lookup from argument
materialization costs
- Add case filtering option to property
- Add support for coalescing assignment to ArrayAccess objects with nested dimensions
- Implement proper handling of magic property access in coalescing operations
- Create new test cases covering array access, ArrayAccess implementation and magic property scenarios
- Refactor coalesce array access target resolution logic for better performance
- Add proper null checking and object detection for ArrayAccess operations
- Update phpx dependency from ~2.6.11 to ~2.6.12 for compatibility fixes
* fix(gen_stub): register enum-case class constants as persistent AST constants
A class constant valued by an enum case was registered with the folded
scalar (the backing value, or the case name for pure cases), so
constant('K::CB'), $cls::CB and reflection observed an int/string where
PHP has the case object, and K::CB === E::B was false on every dynamic
path. Enum case objects have request lifetime and can never sit in the
persistent class-entry tables, in any request-init rebinding scheme
least of all: writing a request-owned object into the shared table is
unsafe under concurrent ZTS requests.
Reuse the engine's own mechanism for internal enums instead: the
constant is declared as a persistent IS_CONSTANT_AST holding the
Enum::Case fetch, so Zend separates the class constants table into
request-local mutable storage on first access, evaluates the fetch
there, and cleans it up at request shutdown. Identity is preserved for
static access, constant(), dynamic class access and reflection, with no
module-lifecycle hooks and no registration-order sensitivity.
Case identity flows through compile-time constant evaluation as an
EnumCaseRef value instead of a scalar, so it also survives constant
expressions (true ? E::A : E::B), constant chains, typed class
constants (declared type and AST value are registered together), and
internal enum cases such as RoundingMode::HalfEven, which previously
aborted stub generation. The runtime expression path (php::getEnumCase)
is unchanged.
The preprocessor also no longer reads the raw ->value property off
arbitrary case expressions (`case A = 1 + 1;` warned and was recorded
as a pure case): only literal backing values are recorded eagerly, and
no compile-time consumer needs the evaluated scalar - gen_stub
evaluates the registration value from the AST itself.
* fix(gen_stub): constrain enum-case AST registration to class constants
The persistent IS_CONSTANT_AST representation leaked into property and
parameter defaults, whose persistent tables reject refcounted zvals:
startup died with "Internal zvals cannot be refcounted". EvaluatedValue
now carries the case identity in a dedicated field while its value
degrades to what those consumers read before case identity existed
(the host case object for internal enums, the literal backing value or
case name for compiled ones), and only class-constant registration opts
into the AST. Property/parameter defaults keep flowing through their
existing runtime-restore machinery unchanged.
Also parenthesize a folded constant operand before appending a member
access: the C++ ternary of `const VALUE = cond ? E::A : E::B;` bound
`.attr("value")` to its else branch only, so `K::VALUE->value`
evaluated to the case object instead of its backing value.
* fix(gen_stub): give persistent AST constants a complete teardown lifecycle
destroy_zend_class() asserts (in debug builds) that every persistent
AST constant remaining on an internal class is CONST_ENUM_INIT, and its
teardown frees only the allocation referenced by Z_AST — the previous
representation left a CLASS_CONST root behind (assertion failure at
shutdown on 8.4/8.5 debug builds) and leaked the two separately
allocated children.
The AST is now built in one contiguous persistent allocation (ast_ref,
root, both zval children — mirroring Zend's own persistent enum AST
builder), and every generated file with AST constants emits a release
function that runs from the module's MSHUTDOWN, before Zend's class
teardown: it frees the single block and restores the constant slot to
null, so destroy_zend_class() never sees a foreign AST. Request-local
mutable copies are unaffected (no request is live at MSHUTDOWN).
CONST_ENUM_INIT itself is not usable here: that node constructs a new
case object rather than fetching the canonical registered one, which
would break case identity again.
* fix(codegen): reject lifecycles that cannot release AST constants
The typephp_release_ast_constants_*() teardown ran only from MSHUTDOWN,
which is not a general pre-class-destruction hook: for a
MODULE_TEMPORARY module loaded through dl(), module_destructor() runs
clean_module_classes() before the shutdown callback, so the foreign
ZEND_AST_CLASS_CONST reached destroy_zend_class() first and still
tripped the debug assertion; and a MINIT that fails after registering
such a constant never sets module_started, so MSHUTDOWN is not
guaranteed to run at all.
The generated module now enforces the lifecycle contract instead of
assuming it. When the module declares any enum-case AST constant, MINIT
opens with a guard that rejects MODULE_TEMPORARY (zend_error E_WARNING,
return FAILURE) before a single class is registered — with nothing in
the class table, teardown is trivially safe. MINIT is also restructured
so that every step that can return FAILURE precedes the first
register_class_*() call: the AST constants are installed by the
infallible tail (class registration, then symbol registration), so a
FAILURE return can never leave a foreign AST in the persistent tables.
The generator itself throws if a future change introduces a FAILURE
return after registration begins. The MSHUTDOWN release is unchanged
and remains the supported, persistent-module path.
EnumCaseAstConstantLifecycleTest asserts the guard exists exactly when
AST constants exist, that it precedes every registration step, that no
FAILURE return follows the first class registration, and that MSHUTDOWN
releases the constants before any other teardown. The enum-case phpt
gains a never-accessed constant so the full process shutdown it already
performs also covers a pristine persistent AST; a dl()-path phpt is not
feasible because the harness only builds standalone binaries whose
module is registered persistently (documented in the test file).
* fix(preprocessor): enforce Zend readonly property declaration rules
The readonly checks previously lived only in the Native-class branch;
ZendVM-backed classes accepted declarations Zend rejects at compile
time. addClassProperty now enforces, for declared and promoted
properties alike (probed against Zend 8.4.13):
- readonly property with a default value ("Readonly property A::$x
cannot have default value") - a readonly property carries runtime
initialization state, so a compile-time default is meaningless
- untyped readonly property, including untyped promoted readonly ctor
params ("Readonly property A::$x must have type")
- static readonly ("Static property A::$x cannot be readonly")
- a `readonly class` applies the same three rules to every property:
the class-level Modifiers::READONLY flag (already recorded on
ClassDef->flags for the Translator-side inheritance check) is OR-ed
into the per-property check
Promoted readonly params keep accepting parameter defaults: the default
belongs to the constructor argument, not the property (Zend-verified).
The inheritance_error_prop_readonly fixture used `readonly int $x = 2`,
which Zend itself rejects with the default-value error before ever
reaching the readonly-mismatch link error; the default is dropped so the
fixture still exercises the inheritance mismatch.
* fix(translator): enforce readonly-class inheritance in both directions
Zend seals readonly-ness across a hierarchy: a non-readonly class cannot
extend a readonly one and vice versa. Both directions compiled silently.
* fix(translator): complete readonly-class contracts for traits, internal parents and attributes
Three readonly-class rules Zend enforces at compile time were still
accepted (all probed on 8.4.13):
- A trait property keeps its own declaration; the consuming class's
readonly modifier does not upgrade it, so composing a non-readonly
(or static, which can never be readonly) trait property into a
readonly class fails: "Readonly class C cannot use trait with a
non-readonly property T::$value". The check runs in composeTraitAst's
property pass, which also matches Zend's naming of the directly used
trait when the property originates in a nested trait. A trait property
declared readonly composes fine.
- The readonly inheritance check only covered compiled parents; classes
extending internal ones skipped it entirely, so `readonly class C
extends ArrayObject {}` compiled. Internal parents now consult host
reflection (ReflectionClass::isReadOnly), keeping the contract
two-directional: the host runtime also knows internal readonly classes
(BcMath\Number, Dom\NamespaceInfo — both final in 8.4, so only the
readonly-child direction is reachable today).
- #[AllowDynamicProperties] contradicts readonly semantics (every
property is readonly and declared); Zend rejects the combination:
"Cannot apply #[AllowDynamicProperties] to readonly class C". The
pre-existing readonly-class.phpt carried exactly this invalid
combination and is adjusted to stay a valid positive test.
* fix(codegen): keep Zend operand read order around hoisted side effects
Lowering a later call argument or concat operand that materializes
captured statements (an assignment, a call result) appended them to the
enclosing statement, executing the side effect before earlier operands
were read: two($j, $j = 5) with $j = 1 produced "5,5" (Zend "1,5") and
$m . "," . ($m = 9) produced "9,9" (Zend "1,9").
Call arguments: Zend SENDs strictly left to right, so when a later
argument hoists statements, every earlier by-value plain-variable
argument is snapshotted into a temporary at its own argument position.
By-reference parameters, unpacked arguments, $this and $GLOBALS are
left alone.
Concat chains: Zend reads a CV operand when its CONCAT opcode executes,
so in the left-associated chain the first two items are read together
at the first op (after both items' side effects: $s . ($s = 'b') . $s
is "bbb") and each later item after the side effects of everything up
to itself. The flattened braced-list lowering now snapshots a
plain-variable item exactly at that read position, deferring the first
item's snapshot until the second item has been lowered.
Plain arithmetic is intentionally unchanged: Zend's ADD reads the CV at
op time, so $k + ($k = 5) is 10 in both worlds, and the existing
codegen already matches.
* test(codegen): platform-neutral integer-literal suffixes in eval-order assertions
* fix(codegen): detect wrapped side effects when ordering operand reads
Zend sends call arguments strictly left to right and reads a concat
operand's CV when its opcode executes: an assignment nested in a later
argument runs after every earlier by-value argument has been sent, so
pairValue($i, (int) ($i = 5)) passes the old value ("1,5"), and the
same holds when the assignment is wrapped in !, unary +/-, ~, or @.
shouldMaterializeOrderedOperand() only descended through BinaryOp
nodes, so an assignment inside any other expression wrapper was not
classified as side-effecting: no earlier operand was snapshotted and
the assignment could even stay inline in the C++ argument list
(php::toInt(i = 5LL)), mutating the variable at an unsequenced point.
Deriving the decision from the captured statements lowering produces
would miss exactly these inline cases, so the classifier now recurses
structurally through every sub-expression: any wrapper of a
side-effecting node is itself side-effecting. Closure and arrow
function bodies do not run at creation time and stop the walk; throw,
yield, yield from, and backtick expressions join the side-effecting
leaves.
Zend's ADD opcode still reads its CV at op time, so $k + ($k = 5)
keeps its existing codegen (10 in both worlds, no snapshot).
* fix(codegen): type materialized wrapper operands as dynamic temporaries
A wrapper expression around a side effect (-strlen($s), a cast, error
suppression) is now materialized for evaluation order, but the temp-type
fallback typed it by the detected PHP type. The lowered C++ can still be
dynamic — an unqualified namespaced call lowers to php::call(...), a
Variant — so a php::Int temporary failed to compile in the self-build.
Follow the call/binary-op policy: native scalar types only in
native-types mode, otherwise a dynamic temporary.
* fix(codegen): route typed division, int modulo and shifts through PHP operators
Typed int/int and float-typed division fell through to a raw C++ '/':
7 / 2 on zend_long operands truncated to 3 where PHP returns 3.5,
integer division by zero was undefined behavior and float division by
zero produced INF, while PHP raises a catchable DivisionByZeroError in
both cases; PHP_INT_MIN / -1 also has UB in C++ but promotes to float
in PHP. The '%' guard only routed through php::fn::mod when NOT both
operands were int, so both-int modulo kept raw C++ '%' (UB for a zero
divisor and for PHP_INT_MIN % -1, which PHP defines as 0). Dynamic int
shifts were raw C++ too: PHP defines counts >= the word size as 0 (or
-1 for negative right shifts) and raises ArithmeticError for negative
counts, both undefined in C++.
Route all of these through the encapsulated php::Var operators /
php::fn::mod in non-native mode, matching the existing +/-/* pattern.
Constant folds are untouched; constant shifts that C++ defines
identically to PHP still emit raw operators.
* fix(parser): defer literal zero divisors to the runtime DivisionByZeroError
A literal `/ 0` or `% 0` (including `/=` and `%=`) was a compile-time
fatal, rejecting valid PHP: Zend compiles it and raises a catchable
DivisionByZeroError only when the statement executes, so dead or
guarded code like `if ($cond) { $x = 1 % 0; }` must compile. The
equivalent spellings `1 % (1 - 1)` and `10 / ZERO` were already
accepted and lowered to the catchable runtime error.
Give the literal spelling the same lowering: route the operation
through the encapsulated Variant operators (compound assignments on
Variant slots already defer via operator/= and operator%=), keep a
compile-time warning in normal mode, and keep the fatal in native mode
where the C++ operation would be undefined behavior.
The six OperatorTest cases asserting the old compile-time fatal now
assert the runtime-error lowering instead.
* test(operator): platform-neutral literal suffixes, PHP division on typed ints
The literal-division assertions hardcoded the macOS zend_long suffix
(LL); Linux emits L, so they now match either. native-type.phpt
asserted the truncating int division this change removes: division on
typed int operands follows PHP semantics in non-native mode, consistent
with the pre-existing + - * routing (use native_types keeps raw
division), so std::int(10) / 4 is now float(2.5).
* fix(codegen): literal zero divisors on native scalar slots raise the runtime error
Downgrading the literal-zero compile fatal to a warning exposed the raw
C++ compound path on typed native slots: `int $value; $value /= 0`
compiled to `value /= php::toInt(0L)` and killed the process with
SIGFPE instead of the catchable DivisionByZeroError (`%= 0` likewise;
float `/= 0.0` produced INF). A proven zero divisor always throws
before any assignment happens, so the whole compound lowers to the
PHP-semantics binary operation through php::Var and the target is left
untouched. Native-types mode keeps the compile-time rejection.
* fix(codegen): exclude explicit native scalars from PHP arithmetic routing
std::int()/std::float() opt into native C++ arithmetic independently of
the file-wide native_types declaration, and the existing + - * routing
already honors that via isExplicitNativeArithmeticExpr(). The new
division, both-int modulo and dynamic shift branches, and the
literal-zero compound lowering, bypassed it: std::int(10) / 4 changed
from int(2) to float(2.5) and native-type.phpt was updated to encode
the regression.
Every new PHP-semantics branch now skips explicitly native operands,
native-type.phpt is restored to int(2), and a proven zero divisor on an
explicit native slot keeps the compile-time rejection used by
native_types mode instead of being silently rerouted to PHP semantics.
Boundary coverage added on both sides: ordinary typed parameters keep
PHP behavior (7 / 2 is 3.5, -7 % 2 is -1) while std::int()/std::float()
keep native division, modulo and shifts.
* fix(optimizer): round() must not lower a RoundingMode enum to an int
Since PHP 8.4 the third parameter of round() is a RoundingMode enum, but
php::fn::round() models the mode as an Int, which only covers the legacy
PHP_ROUND_* constants. genRound sent the argument through convertIntExpr
regardless, so the enum went through an object-to-int conversion that
yields 1 - PHP_ROUND_HALF_UP:
round(2.5, 0, RoundingMode::HalfEven);
// compiled: Warning: Object of class RoundingMode could not be
// converted to int
// compiled: 3
// PHP: 2
Banker's rounding silently became half away from zero. Code that spells
out HalfEven is usually money code, where that is the exact difference it
was avoiding.
A mode that is not statically an int now falls through to the dynamic
path, which passes the enum to the runtime function unchanged. The legacy
integer constants keep the native call - PHP_ROUND_HALF_DOWN still lowers
to a plain 2L - and the one and two argument forms are untouched.
Only the compile-time lowering is covered by a test here. A runtime PHPT
cannot pass yet: phpx resolves a class constant on an internal class by
reading the raw zval out of the constants table, so RoundingMode::HalfEven
does not materialise at all. That is reported separately; once it ships,
the runtime case can be added to type_conv-style coverage.
* fix(optimizer): send every explicit round() mode to the dynamic path
Checking only Type::INT was not enough. php::fn::round() calls
_php_math_round() directly and never runs Zend's validation of the mode,
so an integer outside 1-8 reaches php_round_helper and terminates the
process rather than raising ValueError:
round(2.5, 0, 99); // segmentation fault
A static int type does not prove the runtime value is a valid mode, so
an int variable reaches the same path. Since three-argument round() is
uncommon, take the conservative option and route every call with an
explicit mode to the dynamic Zend path, which validates the argument and
accepts both a RoundingMode enum and a legacy PHP_ROUND_* constant.
Reject unpacked and named arguments as well: they carry a single
Node\Arg whatever their runtime arity is, so genRound() was reading the
unpacked array as the number being rounded.
Add tests/compiler/stdlib/round-mode.phpt covering valid legacy modes,
out-of-range literal and variable modes, and full and partial unpacking.
The enum case still cannot produce PHP's result until the swoole/phpx
class-constant fix is part of the pinned dependency, so it stays out of
the runtime coverage for now.
---------
Co-authored-by: Giandonn <lucas_raineri@hotmail.com>
ShaoBo Wan(無尘)
韩天峰