/**
* @param Node $node
* A node to check types on
*
* @return UnionType
* The resulting type(s) of the binary operation
*/
public function visitBinaryAdd(Node $node) : UnionType
{
$left = UnionType::fromNode($this->context, $this->code_base, $node->children['left']);
$right = UnionType::fromNode($this->context, $this->code_base, $node->children['right']);
// fast-track common cases
if ($left->isType(IntType::instance()) && $right->isType(IntType::instance())) {
return IntType::instance()->asUnionType();
}
if (($left->isType(IntType::instance()) || $left->isType(FloatType::instance())) && ($right->isType(IntType::instance()) || $right->isType(FloatType::instance()))) {
return FloatType::instance()->asUnionType();
}
$left_is_array = !empty($left->genericArrayElementTypes()) && empty($left->nonGenericArrayTypes());
$right_is_array = !empty($right->genericArrayElementTypes()) && empty($right->nonGenericArrayTypes());
if ($left_is_array && !$right->canCastToUnionType(ArrayType::instance()->asUnionType())) {
Log::err(Log::ETYPE, "invalid operator: left operand is array and right is not", $this->context->getFile(), $node->lineno);
return new UnionType();
} else {
if ($right_is_array && !$left->canCastToUnionType(ArrayType::instance()->asUnionType())) {
Log::err(Log::ETYPE, "invalid operator: right operand is array and left is not", $this->context->getFile(), $node->lineno);
return new UnionType();
} else {
if ($left_is_array || $right_is_array) {
// If it is a '+' and we know one side is an array
// and the other is unknown, assume array
return ArrayType::instance()->asUnionType();
}
}
}
return new UnionType([IntType::instance(), FloatType::instance()]);
}
/**
* @param Node $node
* A node to check types on
*
* @return UnionType
* The resulting type(s) of the binary operation
*/
public function visitBinaryAdd(Node $node) : UnionType
{
$left = UnionType::fromNode($this->context, $this->code_base, $node->children['left']);
$right = UnionType::fromNode($this->context, $this->code_base, $node->children['right']);
// fast-track common cases
if ($left->isType(IntType::instance()) && $right->isType(IntType::instance())) {
return IntType::instance()->asUnionType();
}
// If both left and right are arrays, then this is array
// concatenation.
if ($left->isGenericArray() && $right->isGenericArray()) {
if ($left->isEqualTo($right)) {
return $left;
}
return ArrayType::instance()->asUnionType();
}
if (($left->isType(IntType::instance()) || $left->isType(FloatType::instance())) && ($right->isType(IntType::instance()) || $right->isType(FloatType::instance()))) {
return FloatType::instance()->asUnionType();
}
$left_is_array = !empty($left->genericArrayElementTypes()) && empty($left->nonGenericArrayTypes()) || $left->isType(ArrayType::instance());
$right_is_array = !empty($right->genericArrayElementTypes()) && empty($right->nonGenericArrayTypes()) || $right->isType(ArrayType::instance());
if ($left_is_array && !$right->canCastToUnionType(ArrayType::instance()->asUnionType())) {
Issue::maybeEmit($this->code_base, $this->context, Issue::TypeInvalidRightOperand, $node->lineno ?? 0);
return new UnionType();
} elseif ($right_is_array && !$left->canCastToUnionType(ArrayType::instance()->asUnionType())) {
Issue::maybeEmit($this->code_base, $this->context, Issue::TypeInvalidLeftOperand, $node->lineno ?? 0);
return new UnionType();
} elseif ($left_is_array || $right_is_array) {
// If it is a '+' and we know one side is an array
// and the other is unknown, assume array
return ArrayType::instance()->asUnionType();
}
return new UnionType([IntType::instance(), FloatType::instance()]);
}
/**
* @param object|array|null
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage Expected double (a float), got
* @dataProvider invalidFloatProvider
*/
public function testInvalidUnrestrictedDouble($value)
{
FloatType::toUnrestrictedDouble($value);
}
/**
* @param UnionType $target
* A type to check to see if this can cast to it
*
* @return bool
* True if this type is allowed to cast to the given type
* i.e. int->float is allowed while float->int is not.
*
* @see \Phan\Deprecated\Pass2::type_check
* Formerly 'function type_check'
*/
public function canCastToUnionType(UnionType $target) : bool
{
// Fast-track most common cases first
// If either type is unknown, we can't call it
// a success
if ($this->isEmpty() || $target->isEmpty()) {
return true;
}
// T === T
if ($this->isEqualTo($target)) {
return true;
}
if (Config::get()->null_casts_as_any_type) {
// null <-> null
if ($this->isType(NullType::instance()) || $target->isType(NullType::instance())) {
return true;
}
}
// mixed <-> mixed
if ($target->hasType(MixedType::instance()) || $this->hasType(MixedType::instance())) {
return true;
}
// int -> float
if ($this->isType(IntType::instance()) && $target->isType(FloatType::instance())) {
return true;
}
// Check conversion on the cross product of all
// type combinations and see if any can cast to
// any.
foreach ($this->getTypeList() as $source_type) {
if (empty($source_type)) {
continue;
}
foreach ($target->getTypeList() as $target_type) {
if (empty($target_type)) {
continue;
}
if ($source_type->canCastToType($target_type)) {
return true;
}
}
}
// Only if no source types can be cast to any target
// types do we say that we cannot perform the cast
return false;
}
/**
* Visit a node with kind `\ast\AST_CAST`
*
* @param Node $node
* A node of the type indicated by the method name that we'd
* like to figure out the type that it produces.
*
* @return UnionType
* The set of types that are possibly produced by the
* given node
*/
public function visitCast(Node $node) : UnionType
{
switch ($node->flags) {
case \ast\flags\TYPE_NULL:
return NullType::instance()->asUnionType();
case \ast\flags\TYPE_BOOL:
return BoolType::instance()->asUnionType();
case \ast\flags\TYPE_LONG:
return IntType::instance()->asUnionType();
case \ast\flags\TYPE_DOUBLE:
return FloatType::instance()->asUnionType();
case \ast\flags\TYPE_STRING:
return StringType::instance()->asUnionType();
case \ast\flags\TYPE_ARRAY:
return ArrayType::instance()->asUnionType();
case \ast\flags\TYPE_OBJECT:
return ObjectType::instance()->asUnionType();
default:
Log::err(Log::EFATAL, "Unknown type (" . $node->flags . ") in cast");
}
}
public function testFromStringWithFloat()
{
$this->assertSame(FloatType::getInstance(), MixedType::fromString("float"));
}
/**
* 与えられた値を、指定された型に変換して返します。
* @link https://heycam.github.io/webidl/#idl-types Web IDL (Second Edition)
* @link https://www.w3.org/TR/WebIDL/#idl-types Web IDL
* @param string $type
* @param mixed $value
* @param array $pseudoTypes callback interface 型、列挙型、callback 関数型、または dictionary 型の識別子をキーとした型情報の配列。
* @return mixed
*/
public static function to($type, $value, $pseudoTypes = null)
{
switch ($type) {
case 'any':
$returnValue = $value;
break;
case 'boolean':
$returnValue = BooleanType::toBoolean($value);
break;
case '[EnforceRange] byte':
$returnValue = IntegerType::toByte($value, '[EnforceRange]');
break;
case '[Clamp] byte':
$returnValue = IntegerType::toByte($value, '[Clamp]');
break;
case 'byte':
$returnValue = IntegerType::toByte($value);
break;
case '[EnforceRange] octet':
$returnValue = IntegerType::toOctet($value, '[EnforceRange]');
break;
case '[Clamp] octet':
$returnValue = IntegerType::toOctet($value, '[Clamp]');
break;
case 'octet':
$returnValue = IntegerType::toOctet($value);
break;
case '[EnforceRange] short':
$returnValue = IntegerType::toShort($value, '[EnforceRange]');
break;
case '[Clamp] short':
$returnValue = IntegerType::toShort($value, '[Clamp]');
break;
case 'short':
$returnValue = IntegerType::toShort($value);
break;
case '[EnforceRange] unsigned short':
$returnValue = IntegerType::toUnsignedShort($value, '[EnforceRange]');
break;
case '[Clamp] unsigned short':
$returnValue = IntegerType::toUnsignedShort($value, '[Clamp]');
break;
case 'unsigned short':
$returnValue = IntegerType::toUnsignedShort($value);
break;
case '[EnforceRange] long':
$returnValue = IntegerType::toLong($value, '[EnforceRange]');
break;
case '[Clamp] long':
$returnValue = IntegerType::toLong($value, '[Clamp]');
break;
case 'long':
$returnValue = IntegerType::toLong($value);
break;
case '[EnforceRange] unsigned long':
$returnValue = IntegerType::toUnsignedLong($value, '[EnforceRange]');
break;
case '[Clamp] unsigned long':
$returnValue = IntegerType::toUnsignedLong($value, '[Clamp]');
break;
case 'unsigned long':
$returnValue = IntegerType::toUnsignedLong($value);
break;
case '[EnforceRange] long long':
$returnValue = IntegerType::toLongLong($value, '[EnforceRange]');
break;
case '[Clamp] long long':
$returnValue = IntegerType::toLongLong($value, '[Clamp]');
break;
case 'long long':
$returnValue = IntegerType::toLongLong($value);
break;
case '[EnforceRange] unsigned long long':
$returnValue = IntegerType::toUnsignedLongLong($value, '[EnforceRange]');
break;
case '[Clamp] unsigned long long':
$returnValue = IntegerType::toUnsignedLongLong($value, '[Clamp]');
break;
case 'unsigned long long':
$returnValue = IntegerType::toUnsignedLongLong($value);
break;
case 'float':
$returnValue = FloatType::toFloat($value);
break;
case 'unrestricted float':
$returnValue = FloatType::toUnrestrictedFloat($value);
break;
case 'double':
$returnValue = FloatType::toDouble($value);
break;
case 'unrestricted double':
$returnValue = FloatType::toUnrestrictedDouble($value);
break;
case 'DOMString':
$returnValue = StringType::toDOMString($value);
break;
case 'ByteString':
$returnValue = StringType::toByteString($value);
break;
case 'USVString':
$returnValue = StringType::toUSVString($value);
break;
case 'object':
$returnValue = ObjectType::toObject($value);
break;
case 'Date':
$returnValue = ObjectType::toInterface($value, 'DateTimeInterface');
break;
case 'RegExp':
$returnValue = RegExpType::toRegExp($value);
break;
case 'Error':
$returnValue = self::to('(esperecyan\\webidl\\Error or DOMException)', $value, $pseudoTypes);
break;
case 'DOMException':
$returnValue = ObjectType::toInterface($value, 'DOMException');
break;
default:
$pattern = '/^(?:(?<nullable>.+)\\?|sequence<(?<sequence>.+)>|(?<array>.+)\\[]|(?<union>\\(.+\\))|FrozenArray<(?<FrozenArray>.+)>)$/u';
if (preg_match($pattern, $type, $matches) === 1) {
if (!empty($matches['nullable'])) {
$returnValue = NullableType::toNullable($value, $matches['nullable'], $pseudoTypes);
} elseif (!empty($matches['sequence'])) {
$returnValue = SequenceType::toSequence($value, $matches['sequence'], $pseudoTypes);
} elseif (!empty($matches['array'])) {
$returnValue = SequenceType::toArray($value, $matches['array'], $pseudoTypes);
} elseif (!empty($matches['union'])) {
$returnValue = UnionType::toUnion($value, $matches['union'], $pseudoTypes);
} elseif (!empty($matches['FrozenArray'])) {
$returnValue = SequenceType::toFrozenArray($value, $matches['FrozenArray'], $pseudoTypes);
}
} elseif (isset($pseudoTypes[$type])) {
$pseudoType = $pseudoTypes[$type];
switch ($pseudoType) {
case 'callback interface':
case 'single operation callback interface':
$returnValue = ObjectType::toCallbackInterface($value, $pseudoType === 'single operation callback interface');
break;
case 'callback function':
$returnValue = ObjectType::toCallbackFunction($value);
break;
default:
if (is_string($pseudoType) || isset($pseudoType[0])) {
$returnValue = StringType::toEnumerationValue($value, $type, $pseudoType);
} else {
$returnValue = DictionaryType::toDictionary($value, $type, $pseudoTypes);
}
}
} else {
$returnValue = ObjectType::toInterface($value, $type);
}
}
return $returnValue;
}