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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Annotations;
use Closure;
use ReflectionClass;
use Doctrine\Common\Annotations\Annotation\Enum;
use Doctrine\Common\Annotations\Annotation\Target;
use Doctrine\Common\Annotations\Annotation\Attribute;
use Doctrine\Common\Annotations\Annotation\Attributes;
/**
* A parser for docblock annotations.
*
* It is strongly discouraged to change the default annotation parsing process.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
*/
final class DocParser
{
/**
* An array of all valid tokens for a class name.
*
* @var array
*/
private static $classIdentifiers = array(DocLexer::T_IDENTIFIER, DocLexer::T_TRUE, DocLexer::T_FALSE, DocLexer::T_NULL);
/**
* The lexer.
*
* @var \Doctrine\Common\Annotations\DocLexer
*/
private $lexer;
/**
* Current target context
*
* @var string
*/
private $target;
/**
* Doc Parser used to collect annotation target
*
* @var \Doctrine\Common\Annotations\DocParser
*/
private static $metadataParser;
/**
* Flag to control if the current annotation is nested or not.
*
* @var boolean
*/
private $isNestedAnnotation = false;
/**
* Hashmap containing all use-statements that are to be used when parsing
* the given doc block.
*
* @var array
*/
private $imports = array();
/**
* This hashmap is used internally to cache results of class_exists()
* look-ups.
*
* @var array
*/
private $classExists = array();
/**
* Whether annotations that have not been imported should be ignored.
*
* @var boolean
*/
private $ignoreNotImportedAnnotations = false;
/**
* An array of default namespaces if operating in simple mode.
*
* @var array
*/
private $namespaces = array();
/**
* A list with annotations that are not causing exceptions when not resolved to an annotation class.
*
* The names must be the raw names as used in the class, not the fully qualified
* class names.
*
* @var array
*/
private $ignoredAnnotationNames = array();
/**
* @var string
*/
private $context = '';
/**
* Hash-map for caching annotation metadata
* @var array
*/
private static $annotationMetadata = array(
'Doctrine\Common\Annotations\Annotation\Target' => array(
'is_annotation' => true,
'has_constructor' => true,
'properties' => array(),
'targets_literal' => 'ANNOTATION_CLASS',
'targets' => Target::TARGET_CLASS,
'default_property' => 'value',
'attribute_types' => array(
'value' => array(
'required' => false,
'type' =>'array',
'array_type'=>'string',
'value' =>'array<string>'
)
),
),
'Doctrine\Common\Annotations\Annotation\Attribute' => array(
'is_annotation' => true,
'has_constructor' => false,
'targets_literal' => 'ANNOTATION_ANNOTATION',
'targets' => Target::TARGET_ANNOTATION,
'default_property' => 'name',
'properties' => array(
'name' => 'name',
'type' => 'type',
'required' => 'required'
),
'attribute_types' => array(
'value' => array(
'required' => true,
'type' =>'string',
'value' =>'string'
),
'type' => array(
'required' =>true,
'type' =>'string',
'value' =>'string'
),
'required' => array(
'required' =>false,
'type' =>'boolean',
'value' =>'boolean'
)
),
),
'Doctrine\Common\Annotations\Annotation\Attributes' => array(
'is_annotation' => true,
'has_constructor' => false,
'targets_literal' => 'ANNOTATION_CLASS',
'targets' => Target::TARGET_CLASS,
'default_property' => 'value',
'properties' => array(
'value' => 'value'
),
'attribute_types' => array(
'value' => array(
'type' =>'array',
'required' =>true,
'array_type'=>'Doctrine\Common\Annotations\Annotation\Attribute',
'value' =>'array<Doctrine\Common\Annotations\Annotation\Attribute>'
)
),
),
'Doctrine\Common\Annotations\Annotation\Enum' => array(
'is_annotation' => true,
'has_constructor' => true,
'targets_literal' => 'ANNOTATION_PROPERTY',
'targets' => Target::TARGET_PROPERTY,
'default_property' => 'value',
'properties' => array(
'value' => 'value'
),
'attribute_types' => array(
'value' => array(
'type' => 'array',
'required' => true,
),
'literal' => array(
'type' => 'array',
'required' => false,
),
),
),
);
/**
* Hash-map for handle types declaration
*
* @var array
*/
private static $typeMap = array(
'float' => 'double',
'bool' => 'boolean',
// allow uppercase Boolean in honor of George Boole
'Boolean' => 'boolean',
'int' => 'integer',
);
/**
* Constructs a new DocParser.
*/
public function __construct()
{
$this->lexer = new DocLexer;
}
/**
* Sets the annotation names that are ignored during the parsing process.
*
* The names are supposed to be the raw names as used in the class, not the
* fully qualified class names.
*
* @param array $names
*/
public function setIgnoredAnnotationNames(array $names)
{
$this->ignoredAnnotationNames = $names;
}
/**
* Sets ignore on not-imported annotations
*
* @param $bool
*/
public function setIgnoreNotImportedAnnotations($bool)
{
$this->ignoreNotImportedAnnotations = (Boolean) $bool;
}
/**
* Sets the default namespaces.
*
* @param array $namespace
*
* @throws \RuntimeException
*/
public function addNamespace($namespace)
{
if ($this->imports) {
throw new \RuntimeException('You must either use addNamespace(), or setImports(), but not both.');
}
$this->namespaces[] = $namespace;
}
/**
* Sets the imports
*
* @param array $imports
* @throws \RuntimeException
*/
public function setImports(array $imports)
{
if ($this->namespaces) {
throw new \RuntimeException('You must either use addNamespace(), or setImports(), but not both.');
}
$this->imports = $imports;
}
/**
* Sets current target context as bitmask.
*
* @param integer $target
*/
public function setTarget($target)
{
$this->target = $target;
}
/**
* Parses the given docblock string for annotations.
*
* @param string $input The docblock string to parse.
* @param string $context The parsing context.
* @return array Array of annotations. If no annotations are found, an empty array is returned.
*/
public function parse($input, $context = '')
{
if (false === $pos = strpos($input, '@')) {
return array();
}
// also parse whatever character is before the @
if ($pos > 0) {
$pos -= 1;
}
$this->context = $context;
$this->lexer->setInput(trim(substr($input, $pos), '* /'));
$this->lexer->moveNext();
return $this->Annotations();
}
/**
* Attempts to match the given token with the current lookahead token.
* If they match, updates the lookahead token; otherwise raises a syntax error.
*
* @param int $token type of Token.
* @return bool True if tokens match; false otherwise.
*/
private function match($token)
{
if ( ! $this->lexer->isNextToken($token) ) {
$this->syntaxError($this->lexer->getLiteral($token));
}
return $this->lexer->moveNext();
}
/**
* Attempts to match the current lookahead token with any of the given tokens.
*
* If any of them matches, this method updates the lookahead token; otherwise
* a syntax error is raised.
*
* @param array $tokens
* @return bool
*/
private function matchAny(array $tokens)
{
if ( ! $this->lexer->isNextTokenAny($tokens)) {
$this->syntaxError(implode(' or ', array_map(array($this->lexer, 'getLiteral'), $tokens)));
}
return $this->lexer->moveNext();
}
/**
* Generates a new syntax error.
*
* @param string $expected Expected string.
* @param array $token Optional token.
*
* @throws AnnotationException
*/
private function syntaxError($expected, $token = null)
{
if ($token === null) {
$token = $this->lexer->lookahead;
}
$message = "Expected {$expected}, got ";
if ($this->lexer->lookahead === null) {
$message .= 'end of string';
} else {
$message .= "'{$token['value']}' at position {$token['position']}";
}
if (strlen($this->context)) {
$message .= ' in ' . $this->context;
}
$message .= '.';
throw AnnotationException::syntaxError($message);
}
/**
* Attempt to check if a class exists or not. This never goes through the PHP autoloading mechanism
* but uses the {@link AnnotationRegistry} to load classes.
*
* @param string $fqcn
* @return boolean
*/
private function classExists($fqcn)
{
if (isset($this->classExists[$fqcn])) {
return $this->classExists[$fqcn];
}
// first check if the class already exists, maybe loaded through another AnnotationReader
if (class_exists($fqcn, false)) {
return $this->classExists[$fqcn] = true;
}
// final check, does this class exist?
return $this->classExists[$fqcn] = AnnotationRegistry::loadAnnotationClass($fqcn);
}
/**
* Collects parsing metadata for a given annotation class
*
* @param string $name The annotation name
*/
private function collectAnnotationMetadata($name)
{
if (self::$metadataParser == null){
self::$metadataParser = new self();
self::$metadataParser->setIgnoreNotImportedAnnotations(true);
self::$metadataParser->setIgnoredAnnotationNames($this->ignoredAnnotationNames);
self::$metadataParser->setImports(array(
'enum' => 'Doctrine\Common\Annotations\Annotation\Enum',
'target' => 'Doctrine\Common\Annotations\Annotation\Target',
'attribute' => 'Doctrine\Common\Annotations\Annotation\Attribute',
'attributes' => 'Doctrine\Common\Annotations\Annotation\Attributes'
));
AnnotationRegistry::registerFile(__DIR__ . '/Annotation/Enum.php');
AnnotationRegistry::registerFile(__DIR__ . '/Annotation/Target.php');
AnnotationRegistry::registerFile(__DIR__ . '/Annotation/Attribute.php');
AnnotationRegistry::registerFile(__DIR__ . '/Annotation/Attributes.php');
}
$class = new \ReflectionClass($name);
$docComment = $class->getDocComment();
// Sets default values for annotation metadata
$metadata = array(
'default_property' => null,
'has_constructor' => (null !== $constructor = $class->getConstructor()) && $constructor->getNumberOfParameters() > 0,
'properties' => array(),
'property_types' => array(),
'attribute_types' => array(),
'targets_literal' => null,
'targets' => Target::TARGET_ALL,
'is_annotation' => false !== strpos($docComment, '@Annotation'),
);
// verify that the class is really meant to be an annotation
if ($metadata['is_annotation']) {
self::$metadataParser->setTarget(Target::TARGET_CLASS);
foreach (self::$metadataParser->parse($docComment, 'class @' . $name) as $annotation) {
if ($annotation instanceof Target) {
$metadata['targets'] = $annotation->targets;
$metadata['targets_literal'] = $annotation->literal;
} elseif ($annotation instanceof Attributes) {
foreach ($annotation->value as $attrib) {
// handle internal type declaration
$type = isset(self::$typeMap[$attrib->type]) ? self::$typeMap[$attrib->type] : $attrib->type;
// handle the case if the property type is mixed
if ('mixed' !== $type) {
// Checks if the property has array<type>
if (false !== $pos = strpos($type, '<')) {
$arrayType = substr($type, $pos+1, -1);
$type = 'array';
if (isset(self::$typeMap[$arrayType])) {
$arrayType = self::$typeMap[$arrayType];
}
$metadata['attribute_types'][$attrib->name]['array_type'] = $arrayType;
}
$metadata['attribute_types'][$attrib->name]['type'] = $type;
$metadata['attribute_types'][$attrib->name]['value'] = $attrib->type;
$metadata['attribute_types'][$attrib->name]['required'] = $attrib->required;
}
}
}
}
// if not has a constructor will inject values into public properties
if (false === $metadata['has_constructor']) {
// collect all public properties
foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC) as $property) {
$metadata['properties'][$property->name] = $property->name;
if(false === ($propertyComment = $property->getDocComment())) {
continue;
}
// checks if the property has @var annotation
if (false !== strpos($propertyComment, '@var')
&& preg_match('/@var\s+([^\s]+)/',$propertyComment, $matches)) {
// literal type declaration
$value = $matches[1];
// handle internal type declaration
$type = isset(self::$typeMap[$value]) ? self::$typeMap[$value] : $value;
// handle the case if the property type is mixed
if ('mixed' !== $type) {
// Checks if the property has @var array<type> annotation
if (false !== $pos = strpos($type, '<')) {
$arrayType = substr($type, $pos+1, -1);
$type = 'array';
if (isset(self::$typeMap[$arrayType])) {
$arrayType = self::$typeMap[$arrayType];
}
$metadata['attribute_types'][$property->name]['array_type'] = $arrayType;
}
$metadata['attribute_types'][$property->name]['type'] = $type;
$metadata['attribute_types'][$property->name]['value'] = $value;
$metadata['attribute_types'][$property->name]['required'] = false !== strpos($propertyComment, '@Required');
}
}
// checks if the property has @Enum
if (false !== strpos($propertyComment, '@Enum')){
$context = 'property ' . $class->name . "::\$" . $property->name;
self::$metadataParser->setTarget(Target::TARGET_PROPERTY);
foreach (self::$metadataParser->parse($propertyComment, $context) as $annotation) {
if($annotation instanceof Enum) {
$metadata['enum'][$property->name]['value'] = $annotation->value;
$metadata['enum'][$property->name]['literal'] = ! empty($annotation->literal) ? $annotation->literal : $annotation->value;
}
}
}
}
// choose the first property as default property
$metadata['default_property'] = reset($metadata['properties']);
}
}
self::$annotationMetadata[$name] = $metadata;
}
/**
* Annotations ::= Annotation {[ "*" ]* [Annotation]}*
*
* @return array
*/
private function Annotations()
{
$annotations = array();
while (null !== $this->lexer->lookahead) {
if (DocLexer::T_AT !== $this->lexer->lookahead['type']) {
$this->lexer->moveNext();
continue;
}
// make sure the @ is preceded by non-catchable pattern
if (null !== $this->lexer->token && $this->lexer->lookahead['position'] === $this->lexer->token['position'] + strlen($this->lexer->token['value'])) {
$this->lexer->moveNext();
continue;
}
// make sure the @ is followed by either a namespace separator, or
// an identifier token
if ((null === $peek = $this->lexer->glimpse())
|| (DocLexer::T_NAMESPACE_SEPARATOR !== $peek['type'] && !in_array($peek['type'], self::$classIdentifiers, true))
|| $peek['position'] !== $this->lexer->lookahead['position'] + 1) {
$this->lexer->moveNext();
continue;
}
$this->isNestedAnnotation = false;
if (false !== $annot = $this->Annotation()) {
$annotations[] = $annot;
}
}
return $annotations;
}
/**
* Annotation ::= "@" AnnotationName ["(" [Values] ")"]
* AnnotationName ::= QualifiedName | SimpleName
* QualifiedName ::= NameSpacePart "\" {NameSpacePart "\"}* SimpleName
* NameSpacePart ::= identifier | null | false | true
* SimpleName ::= identifier | null | false | true
*
* @throws AnnotationException
* @return mixed False if it is not a valid annotation.
*/
private function Annotation()
{
$this->match(DocLexer::T_AT);
// check if we have an annotation
$name = $this->Identifier();
// only process names which are not fully qualified, yet
// fully qualified names must start with a \
$originalName = $name;
if ('\\' !== $name[0]) {
$alias = (false === $pos = strpos($name, '\\'))? $name : substr($name, 0, $pos);
$found = false;
if ($this->namespaces) {
foreach ($this->namespaces as $namespace) {
if ($this->classExists($namespace.'\\'.$name)) {
$name = $namespace.'\\'.$name;
$found = true;
break;
}
}
} elseif (isset($this->imports[$loweredAlias = strtolower($alias)])) {
if (false !== $pos) {
$name = $this->imports[$loweredAlias].substr($name, $pos);
} else {
$name = $this->imports[$loweredAlias];
}
$found = true;
} elseif (isset($this->imports['__NAMESPACE__']) && $this->classExists($this->imports['__NAMESPACE__'].'\\'.$name)) {
$name = $this->imports['__NAMESPACE__'].'\\'.$name;
$found = true;
} elseif ($this->classExists($name)) {
$found = true;
}
if (!$found) {
if ($this->ignoreNotImportedAnnotations || isset($this->ignoredAnnotationNames[$name])) {
return false;
}
throw AnnotationException::semanticalError(sprintf('The annotation "@%s" in %s was never imported. Did you maybe forget to add a "use" statement for this annotation?', $name, $this->context));
}
}
if (!$this->classExists($name)) {
throw AnnotationException::semanticalError(sprintf('The annotation "@%s" in %s does not exist, or could not be auto-loaded.', $name, $this->context));
}
// at this point, $name contains the fully qualified class name of the
// annotation, and it is also guaranteed that this class exists, and
// that it is loaded
// collects the metadata annotation only if there is not yet
if (!isset(self::$annotationMetadata[$name])) {
$this->collectAnnotationMetadata($name);
}
// verify that the class is really meant to be an annotation and not just any ordinary class
if (self::$annotationMetadata[$name]['is_annotation'] === false) {
if (isset($this->ignoredAnnotationNames[$originalName])) {
return false;
}
throw AnnotationException::semanticalError(sprintf('The class "%s" is not annotated with @Annotation. Are you sure this class can be used as annotation? If so, then you need to add @Annotation to the _class_ doc comment of "%s". If it is indeed no annotation, then you need to add @IgnoreAnnotation("%s") to the _class_ doc comment of %s.', $name, $name, $originalName, $this->context));
}
//if target is nested annotation
$target = $this->isNestedAnnotation ? Target::TARGET_ANNOTATION : $this->target;
// Next will be nested
$this->isNestedAnnotation = true;
//if annotation does not support current target
if (0 === (self::$annotationMetadata[$name]['targets'] & $target) && $target) {
throw AnnotationException::semanticalError(
sprintf('Annotation @%s is not allowed to be declared on %s. You may only use this annotation on these code elements: %s.',
$originalName, $this->context, self::$annotationMetadata[$name]['targets_literal'])
);
}
$values = array();
if ($this->lexer->isNextToken(DocLexer::T_OPEN_PARENTHESIS)) {
$this->match(DocLexer::T_OPEN_PARENTHESIS);
if ( ! $this->lexer->isNextToken(DocLexer::T_CLOSE_PARENTHESIS)) {
$values = $this->Values();
}
$this->match(DocLexer::T_CLOSE_PARENTHESIS);
}
if (isset(self::$annotationMetadata[$name]['enum'])) {
// checks all declared attributes
foreach (self::$annotationMetadata[$name]['enum'] as $property => $enum) {
// checks if the attribute is a valid enumerator
if (isset($values[$property]) && ! in_array($values[$property], $enum['value'])) {
throw AnnotationException::enumeratorError($property, $name, $this->context, $enum['literal'], $values[$property]);
}
}
}
// checks all declared attributes
foreach (self::$annotationMetadata[$name]['attribute_types'] as $property => $type) {
if ($property === self::$annotationMetadata[$name]['default_property']
&& !isset($values[$property]) && isset($values['value'])) {
$property = 'value';
}
// handle a not given attribute or null value
if (!isset($values[$property])) {
if ($type['required']) {
throw AnnotationException::requiredError($property, $originalName, $this->context, 'a(n) '.$type['value']);
}
continue;
}
if ($type['type'] === 'array') {
// handle the case of a single value
if ( ! is_array($values[$property])) {
$values[$property] = array($values[$property]);
}
// checks if the attribute has array type declaration, such as "array<string>"
if (isset($type['array_type'])) {
foreach ($values[$property] as $item) {
if (gettype($item) !== $type['array_type'] && !$item instanceof $type['array_type']) {
throw AnnotationException::typeError($property, $originalName, $this->context, 'either a(n) '.$type['array_type'].', or an array of '.$type['array_type'].'s', $item);
}
}
}
} elseif (gettype($values[$property]) !== $type['type'] && !$values[$property] instanceof $type['type']) {
throw AnnotationException::typeError($property, $originalName, $this->context, 'a(n) '.$type['value'], $values[$property]);
}
}
// check if the annotation expects values via the constructor,
// or directly injected into public properties
if (self::$annotationMetadata[$name]['has_constructor'] === true) {
return new $name($values);
}
$instance = new $name();
foreach ($values as $property => $value) {
if (!isset(self::$annotationMetadata[$name]['properties'][$property])) {
if ('value' !== $property) {
throw AnnotationException::creationError(sprintf('The annotation @%s declared on %s does not have a property named "%s". Available properties: %s', $originalName, $this->context, $property, implode(', ', self::$annotationMetadata[$name]['properties'])));
}
// handle the case if the property has no annotations
if (!$property = self::$annotationMetadata[$name]['default_property']) {
throw AnnotationException::creationError(sprintf('The annotation @%s declared on %s does not accept any values, but got %s.', $originalName, $this->context, json_encode($values)));
}
}
$instance->{$property} = $value;
}
return $instance;
}
/**
* Values ::= Array | Value {"," Value}*
*
* @return array
*/
private function Values()
{
$values = array();
// Handle the case of a single array as value, i.e. @Foo({....})
if ($this->lexer->isNextToken(DocLexer::T_OPEN_CURLY_BRACES)) {
$values['value'] = $this->Value();
return $values;
}
$values[] = $this->Value();
while ($this->lexer->isNextToken(DocLexer::T_COMMA)) {
$this->match(DocLexer::T_COMMA);
$token = $this->lexer->lookahead;
$value = $this->Value();
if ( ! is_object($value) && ! is_array($value)) {
$this->syntaxError('Value', $token);
}
$values[] = $value;
}
foreach ($values as $k => $value) {
if (is_object($value) && $value instanceof \stdClass) {
$values[$value->name] = $value->value;
} else if ( ! isset($values['value'])){
$values['value'] = $value;
} else {
if ( ! is_array($values['value'])) {
$values['value'] = array($values['value']);
}
$values['value'][] = $value;
}
unset($values[$k]);
}
return $values;
}
/**
* Constant ::= integer | string | float | boolean
*
* @throws AnnotationException
* @return mixed
*/
private function Constant()
{
$identifier = $this->Identifier();
if (!defined($identifier) && false !== strpos($identifier, '::') && '\\' !== $identifier[0]) {
list($className, $const) = explode('::', $identifier);
$alias = (false === $pos = strpos($className, '\\'))? $className : substr($className, 0, $pos);
$found = false;
switch (true) {
case !empty ($this->namespaces):
foreach ($this->namespaces as $ns) {
if (class_exists($ns.'\\'.$className) || interface_exists($ns.'\\'.$className)) {
$className = $ns.'\\'.$className;
$found = true;
break;
}
}
break;
case isset($this->imports[$loweredAlias = strtolower($alias)]):
$found = true;
if (false !== $pos) {
$className = $this->imports[$loweredAlias].substr($className, $pos);
} else {
$className = $this->imports[$loweredAlias];
}
break;
default:
if(isset($this->imports['__NAMESPACE__'])) {
$ns = $this->imports['__NAMESPACE__'];
if (class_exists($ns.'\\'.$className) || interface_exists($ns.'\\'.$className)) {
$className = $ns.'\\'.$className;
$found = true;
}
}
break;
}
if ($found) {
$identifier = $className . '::' . $const;
}
}
if (!defined($identifier)) {
throw AnnotationException::semanticalErrorConstants($identifier, $this->context);
}
return constant($identifier);
}
/**
* Identifier ::= string
*
* @return string
*/
private function Identifier()
{
// check if we have an annotation
if ($this->lexer->isNextTokenAny(self::$classIdentifiers)) {
$this->lexer->moveNext();
$className = $this->lexer->token['value'];
} else {
$this->syntaxError('namespace separator or identifier');
}
while ($this->lexer->lookahead['position'] === ($this->lexer->token['position'] + strlen($this->lexer->token['value']))
&& $this->lexer->isNextToken(DocLexer::T_NAMESPACE_SEPARATOR)) {
$this->match(DocLexer::T_NAMESPACE_SEPARATOR);
$this->matchAny(self::$classIdentifiers);
$className .= '\\' . $this->lexer->token['value'];
}
return $className;
}
/**
* Value ::= PlainValue | FieldAssignment
*
* @return mixed
*/
private function Value()
{
$peek = $this->lexer->glimpse();
if (DocLexer::T_EQUALS === $peek['type']) {
return $this->FieldAssignment();
}
return $this->PlainValue();
}
/**
* PlainValue ::= integer | string | float | boolean | Array | Annotation
*
* @return mixed
*/
private function PlainValue()
{
if ($this->lexer->isNextToken(DocLexer::T_OPEN_CURLY_BRACES)) {
return $this->Arrayx();
}
if ($this->lexer->isNextToken(DocLexer::T_AT)) {
return $this->Annotation();
}
if ($this->lexer->isNextToken(DocLexer::T_IDENTIFIER)) {
return $this->Constant();
}
switch ($this->lexer->lookahead['type']) {
case DocLexer::T_STRING:
$this->match(DocLexer::T_STRING);
return $this->lexer->token['value'];
case DocLexer::T_INTEGER:
$this->match(DocLexer::T_INTEGER);
return (int)$this->lexer->token['value'];
case DocLexer::T_FLOAT:
$this->match(DocLexer::T_FLOAT);
return (float)$this->lexer->token['value'];
case DocLexer::T_TRUE:
$this->match(DocLexer::T_TRUE);
return true;
case DocLexer::T_FALSE:
$this->match(DocLexer::T_FALSE);
return false;
case DocLexer::T_NULL:
$this->match(DocLexer::T_NULL);
return null;
default:
$this->syntaxError('PlainValue');
}
}
/**
* FieldAssignment ::= FieldName "=" PlainValue
* FieldName ::= identifier
*
* @return array
*/
private function FieldAssignment()
{
$this->match(DocLexer::T_IDENTIFIER);
$fieldName = $this->lexer->token['value'];
$this->match(DocLexer::T_EQUALS);
$item = new \stdClass();
$item->name = $fieldName;
$item->value = $this->PlainValue();
return $item;
}
/**
* Array ::= "{" ArrayEntry {"," ArrayEntry}* [","] "}"
*
* @return array
*/
private function Arrayx()
{
$array = $values = array();
$this->match(DocLexer::T_OPEN_CURLY_BRACES);
$values[] = $this->ArrayEntry();
while ($this->lexer->isNextToken(DocLexer::T_COMMA)) {
$this->match(DocLexer::T_COMMA);
// optional trailing comma
if ($this->lexer->isNextToken(DocLexer::T_CLOSE_CURLY_BRACES)) {
break;
}
$values[] = $this->ArrayEntry();
}
$this->match(DocLexer::T_CLOSE_CURLY_BRACES);
foreach ($values as $value) {
list ($key, $val) = $value;
if ($key !== null) {
$array[$key] = $val;
} else {
$array[] = $val;
}
}
return $array;
}
/**
* ArrayEntry ::= Value | KeyValuePair
* KeyValuePair ::= Key ("=" | ":") PlainValue | Constant
* Key ::= string | integer | Constant
*
* @return array
*/
private function ArrayEntry()
{
$peek = $this->lexer->glimpse();
if (DocLexer::T_EQUALS === $peek['type']
|| DocLexer::T_COLON === $peek['type']) {
if ($this->lexer->isNextToken(DocLexer::T_IDENTIFIER)) {
$key = $this->Constant();
} else {
$this->matchAny(array(DocLexer::T_INTEGER, DocLexer::T_STRING));
$key = $this->lexer->token['value'];
}
$this->matchAny(array(DocLexer::T_EQUALS, DocLexer::T_COLON));
return array($key, $this->PlainValue());
}
return array(null, $this->Value());
}
}
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