/**
* @param \Protobuf\Compiler\Entity $entity
* @param \google\protobuf\FieldDescriptorProto $field
*
* @return string[]
*/
public function generateFieldReadStatement(Entity $entity, FieldDescriptorProto $field)
{
$body = [];
$reference = null;
$type = $field->getType();
$name = $field->getName();
$rule = $field->getLabel();
$tag = $field->getNumber();
$options = $field->getOptions();
$isPack = $options ? $options->getPacked() : false;
$variable = $this->targetVar ?: '$this->' . $name;
$breakSttm = $this->getBreakStatement($variable);
if ($field->hasTypeName()) {
$typeName = $field->getTypeName();
$typeEntity = $this->getEntity($typeName);
$reference = $typeEntity->getNamespacedName();
}
if (!$isPack) {
$body[] = sprintf('\\Protobuf\\WireFormat::assertWireType($wire, %s);', $type->value());
$body[] = null;
}
if ($rule === Label::LABEL_REPEATED() && $isPack) {
$readSttm = $type === Type::TYPE_ENUM() ? $reference . '::valueOf(' . $this->generateReadScalarStatement($type->value()) . ')' : $this->generateReadScalarStatement($type->value());
$body[] = '$innerSize = $reader->readVarint($stream);';
$body[] = '$innerLimit = $stream->tell() + $innerSize;';
$body[] = null;
$body[] = 'if (' . $variable . ' === null) {';
$body[] = ' ' . $variable . ' = new ' . $this->getCollectionClassName($field) . '();';
$body[] = '}';
$body[] = null;
$body[] = 'while ($stream->tell() < $innerLimit) {';
$body[] = ' ' . $variable . '->add(' . $readSttm . ');';
$body[] = '}';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
if ($type === Type::TYPE_MESSAGE() && $rule === Label::LABEL_REPEATED()) {
$body[] = '$innerSize = $reader->readVarint($stream);';
$body[] = '$innerMessage = new ' . $reference . '();';
$body[] = null;
$body[] = 'if (' . $variable . ' === null) {';
$body[] = ' ' . $variable . ' = new \\Protobuf\\MessageCollection();';
$body[] = '}';
$body[] = null;
$body[] = $variable . '->add($innerMessage);';
$body[] = null;
$body[] = '$context->setLength($innerSize);';
$body[] = '$innerMessage->readFrom($context);';
$body[] = '$context->setLength($length);';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
if ($type === Type::TYPE_ENUM() && $rule === LABEL::LABEL_REPEATED()) {
$body[] = 'if (' . $variable . ' === null) {';
$body[] = ' ' . $variable . ' = new ' . $this->getCollectionClassName($field) . '();';
$body[] = '}';
$body[] = null;
$body[] = $variable . '->add(' . $reference . '::valueOf(' . $this->generateReadScalarStatement($type->value()) . '));';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
if ($type === Type::TYPE_MESSAGE()) {
$body[] = '$innerSize = $reader->readVarint($stream);';
$body[] = '$innerMessage = new ' . $reference . '();';
$body[] = null;
$body[] = $variable . ' = $innerMessage;';
$body[] = null;
$body[] = '$context->setLength($innerSize);';
$body[] = '$innerMessage->readFrom($context);';
$body[] = '$context->setLength($length);';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
if ($type === Type::TYPE_ENUM()) {
$body[] = $variable . ' = ' . $reference . '::valueOf(' . $this->generateReadScalarStatement($type->value()) . ');';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
if ($rule !== LABEL::LABEL_REPEATED()) {
$body[] = $variable . ' = ' . $this->generateReadScalarStatement($type->value()) . ';';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
$body[] = 'if (' . $variable . ' === null) {';
$body[] = ' ' . $variable . ' = new ' . $this->getCollectionClassName($field) . '();';
$body[] = '}';
$body[] = null;
$body[] = $variable . '->add(' . $this->generateReadScalarStatement($type->value()) . ');';
$body[] = null;
$body[] = $breakSttm;
return $body;
}
protected function compileField(proto\FieldDescriptorProto $field, $ns, $indent)
{
// Fetch constants by reflecton
$refl = new \ReflectionClass('\\DrSlump\\Protobuf');
$constants = $refl->getConstants();
// Separate rules and types
$rules = $types = array();
foreach ($constants as $k => $v) {
if (false === strpos($k, '_')) {
continue;
}
list($prefix, $name) = explode('_', $k, 2);
if ('RULE' === $prefix) {
$rules[$name] = $v;
} else {
if ('TYPE' === $prefix) {
$types[$name] = $v;
}
}
}
// Get the key for the rule and type
$rule = array_search($field->getLabel(), $rules);
$type = array_search($field->getType(), $types);
$s[] = "// {$rule} {$type} " . $field->getName() . " = " . $field->getNumber();
$s[] = '$f = new \\DrSlump\\Protobuf\\Field();';
$s[] = '$f->number = ' . $field->getNumber() . ';';
$s[] = '$f->name = "' . $field->getName() . '";';
$s[] = '$f->type = \\DrSlump\\Protobuf::TYPE_' . $type . ';';
$s[] = '$f->rule = \\DrSlump\\Protobuf::RULE_' . $rule . ';';
if ($field->hasTypeName()) {
$ref = $field->getTypeName();
if (substr($ref, 0, 1) !== '.') {
throw new \RuntimeException("Only fully qualified names are supported but found '{$ref}' at {$ns}");
}
$s[] = '$f->reference = \'\\' . $this->normalizeNS($ref) . "';";
}
if ($field->hasDefaultValue()) {
switch ($field->getType()) {
case Protobuf::TYPE_BOOL:
$bool = filter_var($field->getDefaultValue(), FILTER_VALIDATE_BOOLEAN);
$s[] = '$f->default = ' . ($bool ? 'true' : 'false') . ';';
break;
case Protobuf::TYPE_STRING:
$s[] = '$f->default = "' . addcslashes($field->getDefaultValue(), '"\\') . '";';
break;
case Protobuf::TYPE_ENUM:
$value = '\\' . $this->normalizeNS($field->getTypeName()) . '::' . $field->getDefaultValue();
$s[] = '$f->default = ' . $value . ';';
break;
default:
// Numbers
$s[] = '$f->default = ' . $field->getDefaultValue() . ';';
}
}
$s[] = '// @@protoc_insertion_point(scope_field)';
$s[] = '// @@protoc_insertion_point(field_' . $ns . ':' . $field->getName() . ')';
return $indent . implode(PHP_EOL . $indent, $s);
}
public function generateField(proto\FieldDescriptorProto $field)
{
$reference = 'null';
if ($field->hasTypeName()) {
$reference = $field->getTypeName();
if (substr($reference, 0, 1) !== '.') {
throw new \RuntimeException('Only fully qualified names are supported: ' . $reference);
}
$reference = "'" . $this->normalizeNS($reference) . "'";
}
$default = 'null';
if ($field->hasDefaultValue()) {
switch ($field->getType()) {
case Protobuf::TYPE_BOOL:
$default = $field->getDefaultValue() ? 'true' : 'false';
break;
case Protobuf::TYPE_STRING:
$default = '"' . addcslashes($field->getDefaultValue(), '"\\') . '"';
break;
case Protobuf::TYPE_ENUM:
$default = $this->normalizeNS($field->getTypeName()) . '.' . $field->getDefaultValue();
break;
default:
// Numbers
$default = $field->getDefaultValue();
}
}
$data = array("'" . $field->getName() . "'", $field->getLabel(), $field->getType(), $reference, $default, '{}');
return '[' . implode(', ', $data) . ']';
}