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generate.php
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generate.php
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<?php
namespace Bunny;
use Bunny\Protocol\ContentHeaderFrame;
require_once __DIR__ . "/../vendor/autoload.php";
$specFileName = "amqp-rabbitmq-0.9.1.json";
$spec = json_decode(file_get_contents(__DIR__ . "/" . $specFileName));
function dashedToCamel($dashed)
{
return implode("", array_map(function ($s) {
return ucfirst($s);
}, explode("-", $dashed)));
}
function dashedToUnderscores($dashed)
{
return strtoupper(str_replace("-", "_", $dashed));
}
/**
* @param string $domain
* @return string
*/
function domainToType($domain)
{
global $spec;
foreach ($spec->domains as $d) {
if ($d[0] === $domain) {
return $d[1];
}
}
throw new \InvalidArgumentException("Unhandled domain '{$domain}'.");
}
/**
* @param string $type
* @return string
*/
function amqpTypeToPhpType($type)
{
if (in_array($type, ["octet", "short", "long", "longlong"])) {
return "int";
} elseif (in_array($type, ["shortstr", "longstr"])) {
return "string";
} elseif (in_array($type, ["bit"])) {
return "bool";
} elseif (in_array($type, ["table"])) {
return "array";
} elseif (in_array($type, ["timestamp"])) {
return "\\DateTime";
} else {
throw new \InvalidArgumentException("Unhandled type '{$type}'.");
}
}
function amqpTypeToConsume($type)
{
switch ($type) {
case "octet":
return "\$buffer->consumeUint8()";
case "table":
return "\$this->consumeTable(\$buffer)";
case "longstr":
return "\$buffer->consume(\$buffer->consumeUint32())";
case "shortstr":
return "\$buffer->consume(\$buffer->consumeUint8())";
case "short":
return "\$buffer->consumeInt16()";
case "long":
return "\$buffer->consumeInt32()";
case "longlong":
return "\$buffer->consumeInt64()";
case "timestamp":
return "\$this->consumeTimestamp(\$buffer)";
default:
throw new \InvalidArgumentException("Unhandled type '{$type}'.");
}
}
function amqpTypeToAppend($type, $e)
{
switch ($type) {
case "octet":
return "\$buffer->appendUint8({$e})";
case "table":
return "\$this->appendTable({$e}, \$buffer)";
case "longstr":
return "\$buffer->appendUint32(strlen({$e})); \$buffer->append({$e})";
case "shortstr":
return "\$buffer->appendUint8(strlen({$e})); \$buffer->append({$e})";
case "short":
return "\$buffer->appendInt16({$e})";
case "long":
return "\$buffer->appendInt32({$e})";
case "longlong":
return "\$buffer->appendInt64({$e})";
case "timestamp":
return "\$this->appendTimestamp({$e}, \$buffer)";
default:
throw new \InvalidArgumentException("Unhandled type '{$type}'.");
}
}
/**
* @param string $type
* @param string $e
* @return array
*/
function amqpTypeToLength($type, $e)
{
switch ($type) {
case "octet":
return [1, null];
case "table":
return [null, null];
case "longstr":
return [4, "strlen({$e})"];
case "shortstr":
return [1, "strlen({$e})"];
case "short":
return [2, null];
case "long":
return [4, null];
case "longlong":
return [8, null];
case "timestamp":
return [8, null];
default:
throw new \InvalidArgumentException("Unhandled type '{$type}'.");
}
}
$protocolReaderContent = "<?php\n";
$protocolReaderContent .= "\n";
$protocolReaderContent .= "declare(strict_types=1);\n";
$protocolReaderContent .= "\n";
$protocolReaderContent .= "namespace Bunny\\Protocol;\n";
$protocolReaderContent .= "\n";
$protocolReaderContent .= "use Bunny\\Constants;\n";
$protocolReaderContent .= "use Bunny\\Exception\\InvalidClassException;\n";
$protocolReaderContent .= "use Bunny\\Exception\\InvalidMethodException;\n";
$protocolReaderContent .= "\n";
$protocolReaderContent .= "/**\n";
$protocolReaderContent .= " * AMQP-{$spec->{'major-version'}}-{$spec->{'minor-version'}}-{$spec->{'revision'}} protocol reader\n";
$protocolReaderContent .= " *\n";
$protocolReaderContent .= " * THIS CLASS IS GENERATED FROM {$specFileName}. **DO NOT EDIT!**\n";
$protocolReaderContent .= " *\n";
$protocolReaderContent .= " * @author Jakub Kulhan <jakub.kulhan@gmail.com>\n";
$protocolReaderContent .= " */\n";
$protocolReaderContent .= "trait ProtocolReaderGenerated\n";
$protocolReaderContent .= "{\n";
$protocolReaderContent .= "\n";
$protocolReaderContent .= " /**\n";
$protocolReaderContent .= " * Consumes AMQP table from buffer.\n";
$protocolReaderContent .= " * \n";
$protocolReaderContent .= " * @param Buffer \$originalBuffer\n";
$protocolReaderContent .= " * @return array\n";
$protocolReaderContent .= " */\n";
$protocolReaderContent .= " abstract public function consumeTable(Buffer \$originalBuffer): array;\n\n";
$protocolReaderContent .= " /**\n";
$protocolReaderContent .= " * Consumes packed bits from buffer.\n";
$protocolReaderContent .= " *\n";
$protocolReaderContent .= " * @return array<mixed>\n";
$protocolReaderContent .= " */\n";
$protocolReaderContent .= " abstract public function consumeBits(Buffer \$buffer, int \$n): array;\n\n";
$consumeMethodFrameContent = "";
$consumeMethodFrameContent .= " /**\n";
$consumeMethodFrameContent .= " * Consumes AMQP method frame.\n";
$consumeMethodFrameContent .= " */\n";
$consumeMethodFrameContent .= " public function consumeMethodFrame(Buffer \$buffer): MethodFrame\n";
$consumeMethodFrameContent .= " {\n";
$consumeMethodFrameContent .= " \$classId = \$buffer->consumeUint16();\n";
$consumeMethodFrameContent .= " \$methodId = \$buffer->consumeUint16();\n";
$consumeMethodFrameContent .= "\n";
$consumeMethodFrameContent .= " ";
$protocolWriterContent = "<?php\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= "declare(strict_types=1);\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= "namespace Bunny\\Protocol;\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= "use Bunny\\Exception\\ProtocolException;\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= "/**\n";
$protocolWriterContent .= " * AMQP-{$spec->{'major-version'}}-{$spec->{'minor-version'}}-{$spec->{'revision'}} protocol writer\n";
$protocolWriterContent .= " *\n";
$protocolWriterContent .= " * THIS CLASS IS GENERATED FROM {$specFileName}. **DO NOT EDIT!**\n";
$protocolWriterContent .= " *\n";
$protocolWriterContent .= " * @author Jakub Kulhan <jakub.kulhan@gmail.com>\n";
$protocolWriterContent .= " */\n";
$protocolWriterContent .= "trait ProtocolWriterGenerated\n";
$protocolWriterContent .= "{\n";
$protocolWriterContent .= "\n";
$protocolWriterContent .= " /**\n";
$protocolWriterContent .= " * Appends AMQP table to buffer.\n";
$protocolWriterContent .= " *\n";
$protocolWriterContent .= " * @param array \$table\n";
$protocolWriterContent .= " * @param Buffer \$originalBuffer\n";
$protocolWriterContent .= " */\n";
$protocolWriterContent .= " abstract public function appendTable(array \$table, Buffer \$originalBuffer);\n\n";
$protocolWriterContent .= " /**\n";
$protocolWriterContent .= " * Appends packed bits to buffer.\n";
$protocolWriterContent .= " *\n";
$protocolWriterContent .= " * @param array \$bits\n";
$protocolWriterContent .= " * @param Buffer \$buffer\n";
$protocolWriterContent .= " */\n";
$protocolWriterContent .= " abstract public function appendBits(array \$bits, Buffer \$buffer);\n\n";
$protocolWriterContent .= " /**\n";
$protocolWriterContent .= " * Appends AMQP protocol header to buffer.\n";
$protocolWriterContent .= " *\n";
$protocolWriterContent .= " * @param Buffer \$buffer\n";
$protocolWriterContent .= " */\n";
$protocolWriterContent .= " public function appendProtocolHeader(Buffer \$buffer): void\n";
$protocolWriterContent .= " {\n";
$protocolWriterContent .= " \$buffer->append('AMQP');\n";
$protocolWriterContent .= " \$buffer->appendUint8(0);\n";
$protocolWriterContent .= " \$buffer->appendUint8({$spec->{'major-version'}});\n";
$protocolWriterContent .= " \$buffer->appendUint8({$spec->{'minor-version'}});\n";
$protocolWriterContent .= " \$buffer->appendUint8({$spec->{'revision'}});\n";
$protocolWriterContent .= " }\n\n";
$appendMethodFrameContent = "";
$appendMethodFrameContent .= " /**\n";
$appendMethodFrameContent .= " * Appends AMQP method frame to buffer.\n";
$appendMethodFrameContent .= " *\n";
$appendMethodFrameContent .= " * @param MethodFrame \$frame\n";
$appendMethodFrameContent .= " * @param Buffer \$buffer\n";
$appendMethodFrameContent .= " */\n";
$appendMethodFrameContent .= " public function appendMethodFrame(MethodFrame \$frame, Buffer \$buffer): void\n";
$appendMethodFrameContent .= " {\n";
$appendMethodFrameContent .= " \$buffer->appendUint16(\$frame->classId);\n";
$appendMethodFrameContent .= " \$buffer->appendUint16(\$frame->methodId);\n";
$appendMethodFrameContent .= "\n";
$appendMethodFrameContent .= " ";
$connectionContent = "<?php\n";
$connectionContent .= "\n";
$connectionContent .= "declare(strict_types=1);\n";
$connectionContent .= "\n";
$connectionContent .= "namespace Bunny;\n";
$connectionContent .= "\n";
$connectionContent .= "use Bunny\\Exception\\ClientException;\n";
$connectionContent .= "use Bunny\\Protocol\\AbstractFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\Buffer;\n";
$connectionContent .= "use Bunny\\Protocol\\ContentBodyFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\ContentHeaderFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\HeartbeatFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\MethodConnectionCloseFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\MethodFrame;\n";
$connectionContent .= "use Bunny\\Protocol\\ProtocolReader;\n";
$connectionContent .= "use Bunny\\Protocol\\ProtocolWriter;\n";
$connectionContent .= "use React\\EventLoop\\Loop;\n";
$connectionContent .= "use React\\EventLoop\\TimerInterface;\n";
$connectionContent .= "use React\\Promise\\Deferred;\n";
$connectionContent .= "use React\\Promise\\Promise;\n";
$connectionContent .= "use React\\Socket\\ConnectionInterface;\n";
$connectionContent .= "use function React\\Async\\await;\n";
$connectionContent .= "\n";
$connectionContent .= "/**\n";
$connectionContent .= " * AMQP-{$spec->{'major-version'}}-{$spec->{'minor-version'}}-{$spec->{'revision'}} client methods\n";
$connectionContent .= " *\n";
$connectionContent .= " * THIS CLASS IS GENERATED FROM {$specFileName}. **DO NOT EDIT!**\n";
$connectionContent .= " *\n";
$connectionContent .= " * @author Jakub Kulhan <jakub.kulhan@gmail.com>\n";
$connectionContent .= " */\n";
$connectionContent .= "final class Connection\n";
$connectionContent .= "{\n";
$connectionContent .= " protected ?TimerInterface \$heartbeatTimer = null;\n";
$connectionContent .= "\n";
$connectionContent .= " /** @var float microtime of last write */\n";
$connectionContent .= " protected float \$lastWrite = 0.0;\n";
$connectionContent .= "\n";
$connectionContent .= " private array \$cache = [];\n";
$connectionContent .= "\n";
$connectionContent .= " /** @var array<array{filter: (callable(AbstractFrame): bool), promise: Deferred}> */\n";
$connectionContent .= " private array \$awaitList = [];\n";
$connectionContent .= "\n";
$connectionContent .= " public function __construct(\n";
$connectionContent .= " private readonly Client \$client,\n";
$connectionContent .= " private readonly ConnectionInterface \$connection,\n";
$connectionContent .= " private readonly Buffer \$readBuffer,\n";
$connectionContent .= " private readonly Buffer \$writeBuffer,\n";
$connectionContent .= " private readonly ProtocolReader \$reader,\n";
$connectionContent .= " private readonly ProtocolWriter \$writer,\n";
$connectionContent .= " private readonly Channels \$channels,\n";
$connectionContent .= " private readonly array \$options = [],\n";
$connectionContent .= " ) {\n";
$connectionContent .= " \$this->connection->on('data', function (string \$data): void {\n";
$connectionContent .= " \$this->readBuffer->append(\$data);\n";
$connectionContent .= "\n";
$connectionContent .= " while ((\$frame = \$this->reader->consumeFrame(\$this->readBuffer)) !== null) {\n";
$connectionContent .= " \$frameInAwaitList = false;\n";
$connectionContent .= " foreach (\$this->awaitList as \$index => \$frameHandler) {\n";
$connectionContent .= " if (\$frameHandler['filter'](\$frame)) {\n";
$connectionContent .= " unset(\$this->awaitList[\$index]);\n";
$connectionContent .= " \$frameHandler['promise']->resolve(\$frame);\n";
$connectionContent .= " \$frameInAwaitList = true;\n";
$connectionContent .= " }\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frameInAwaitList) {\n";
$connectionContent .= " continue;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame->channel === 0) {\n";
$connectionContent .= " \$this->onFrameReceived(\$frame);\n";
$connectionContent .= " continue;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (!\$this->channels->has(\$frame->channel)) {\n";
$connectionContent .= " throw new ClientException(\n";
$connectionContent .= " \"Received frame #{\$frame->type} on closed channel #{\$frame->channel}.\"\n";
$connectionContent .= " );\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " \$this->channels->get(\$frame->channel)->onFrameReceived(\$frame);\n";
$connectionContent .= " }\n";
$connectionContent .= " });\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " public function disconnect(int \$code, string \$reason): void\n";
$connectionContent .= " {\n";
$connectionContent .= " \$this->connectionClose(\$code, 0, 0, \$reason);\n";
$connectionContent .= " \$this->connection->close();\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$this->heartbeatTimer === null) {\n";
$connectionContent .= " return;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " Loop::cancelTimer(\$this->heartbeatTimer);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " /**\n";
$connectionContent .= " * Callback after connection-level frame has been received.\n";
$connectionContent .= " *\n";
$connectionContent .= " * @param AbstractFrame \$frame\n";
$connectionContent .= " */\n";
$connectionContent .= " private function onFrameReceived(AbstractFrame \$frame): void\n";
$connectionContent .= " {\n";
$connectionContent .= " if (\$frame instanceof MethodConnectionCloseFrame) {\n";
$connectionContent .= " \$this->disconnect(Constants::STATUS_CONNECTION_FORCED, \"Connection closed by server: ({\$frame->replyCode}) \" . \$frame->replyText);\n";
$connectionContent .= " throw new ClientException('Connection closed by server: ' . \$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof ContentHeaderFrame) {\n";
$connectionContent .= " \$this->disconnect(Constants::STATUS_UNEXPECTED_FRAME, 'Got header frame on connection channel (#0).');\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof ContentBodyFrame) {\n";
$connectionContent .= " \$this->disconnect(Constants::STATUS_UNEXPECTED_FRAME, 'Got body frame on connection channel (#0).');\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof HeartbeatFrame) {\n";
$connectionContent .= " return;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " throw new ClientException('Unhandled frame ' . get_class(\$frame) . '.');\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " public function appendProtocolHeader(): void\n";
$connectionContent .= " {\n";
$connectionContent .= " \$this->writer->appendProtocolHeader(\$this->writeBuffer);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " public function flushWriteBuffer(): void\n";
$connectionContent .= " {\n";
$connectionContent .= " \$data = \$this->writeBuffer->read(\$this->writeBuffer->getLength());\n";
$connectionContent .= " \$this->writeBuffer->discard(strlen(\$data));\n";
$connectionContent .= "\n";
$connectionContent .= " \$this->lastWrite = microtime(true);\n";
$connectionContent .= " if (!\$this->connection->write(\$data)) {\n";
$connectionContent .= " await(new Promise(function (callable \$resolve): void {\n";
$connectionContent .= " \$this->connection->once('drain', static fn () => \$resolve(null));\n";
$connectionContent .= " }));\n";
$connectionContent .= " }\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " public function awaitContentHeader(int \$channel): ContentHeaderFrame\n";
$connectionContent .= " {\n";
$connectionContent .= " \$deferred = new Deferred();\n";
$connectionContent .= " \$this->awaitList[] = [\n";
$connectionContent .= " 'filter' => function (AbstractFrame \$frame) use (\$channel): bool {\n";
$connectionContent .= " if (\$frame instanceof Protocol\\ContentHeaderFrame && \$frame->channel === \$channel) {\n";
$connectionContent .= " return true;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof Protocol\\MethodChannelCloseFrame && \$frame->channel === \$channel) {\n";
$connectionContent .= " \$this->channelCloseOk(\$channel);\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof Protocol\\MethodConnectionCloseFrame) {\n";
$connectionContent .= " \$this->connectionCloseOk();\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " return false;\n";
$connectionContent .= " },\n";
$connectionContent .= " 'promise' => \$deferred,\n";
$connectionContent .= " ];\n";
$connectionContent .= "\n";
$connectionContent .= " return await(\$deferred->promise());\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " public function awaitContentBody(int \$channel): ContentBodyFrame\n";
$connectionContent .= " {\n";
$connectionContent .= " \$deferred = new Deferred();\n";
$connectionContent .= " \$this->awaitList[] = [\n";
$connectionContent .= " 'filter' => function (AbstractFrame \$frame) use (\$channel): bool {\n";
$connectionContent .= " if (\$frame instanceof Protocol\\ContentBodyFrame && \$frame->channel === \$channel) {\n";
$connectionContent .= " return true;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof Protocol\\MethodChannelCloseFrame && \$frame->channel === \$channel) {\n";
$connectionContent .= " \$this->channelCloseOk(\$channel);\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$frame instanceof Protocol\\MethodConnectionCloseFrame) {\n";
$connectionContent .= " \$this->connectionCloseOk();\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " return false;\n";
$connectionContent .= " },\n";
$connectionContent .= " 'promise' => \$deferred,\n";
$connectionContent .= " ];\n";
$connectionContent .= "\n";
$connectionContent .= " return await(\$deferred->promise());\n";
$connectionContent .= " }\n";
$channelMethodsContent = "<?php\n";
$channelMethodsContent .= "\n";
$channelMethodsContent .= "declare(strict_types=1);\n";
$channelMethodsContent .= "\n";
$channelMethodsContent .= "namespace Bunny;\n";
$channelMethodsContent .= "\n";
$channelMethodsContent .= "use Bunny\\Protocol;\n";
$channelMethodsContent .= "use React\\Promise;\n";
$channelMethodsContent .= "\n";
$channelMethodsContent .= "/**\n";
$channelMethodsContent .= " * AMQP-{$spec->{'major-version'}}-{$spec->{'minor-version'}}-{$spec->{'revision'}} channel methods\n";
$channelMethodsContent .= " *\n";
$channelMethodsContent .= " * THIS CLASS IS GENERATED FROM {$specFileName}. **DO NOT EDIT!**\n";
$channelMethodsContent .= " *\n";
$channelMethodsContent .= " * @author Jakub Kulhan <jakub.kulhan@gmail.com>\n";
$channelMethodsContent .= " */\n";
$channelMethodsContent .= "trait ChannelMethods\n";
$channelMethodsContent .= "{\n";
$channelMethodsContent .= "\n";
$channelMethodsContent .= " /**\n";
$channelMethodsContent .= " * Returns underlying client instance.\n";
$channelMethodsContent .= " */\n";
$channelMethodsContent .= " abstract public function getClient(): Connection;\n\n";
$channelMethodsContent .= " /**\n";
$channelMethodsContent .= " * Returns channel id.\n";
$channelMethodsContent .= " */\n";
$channelMethodsContent .= " abstract public function getChannelId(): int;\n\n";
foreach ($spec->classes as $class) {
$classIdConstant = "Constants::" . dashedToUnderscores("class-" . $class->name);
$consumeMethodFrameContent .= "if (\$classId === {$classIdConstant}) {\n";
$consumeMethodFrameContent .= " ";
foreach ($class->methods as $method) {
$className = "Method" . ucfirst($class->name) . dashedToCamel($method->name) . "Frame";
$content = "<?php\n";
$content .= "\n";
$content .= "declare(strict_types=1);\n";
$content .= "\n";
$content .= "namespace Bunny\\Protocol;\n";
$content .= "\n";
$content .= "use Bunny\\Constants;\n";
$content .= "\n";
$content .= "/**\n";
$content .= " * AMQP '{$class->name}.{$method->name}' (class #{$class->id}, method #{$method->id}) frame.\n";
$content .= " *\n";
$content .= " * THIS CLASS IS GENERATED FROM {$specFileName}. **DO NOT EDIT!**\n";
$content .= " *\n";
$content .= " * @author Jakub Kulhan <jakub.kulhan@gmail.com>\n";
$content .= " */\n";
$content .= "class {$className} extends MethodFrame\n";
$content .= "{\n";
$content .= "\n";
$consumeContent = " \$frame = new {$className}();\n";
$appendContent = "";
$clientAppendContent = "";
$properties = "";
$gettersSetters = "";
$bitVars = [];
$appendBitExpressions = [];
$clientAppendBitExpressions = [];
$clientArguments = [];
$clientSetters = [];
$channelClientArguments = ["\$this->getChannelId()"];
$channelArguments = [];
$hasNowait = false;
if ($class->id !== 10) {
$clientArguments[] = "int \$channel";
$clientSetters[] = "\$frame->channel = \$channel;";
}
if (isset($method->content) && $method->content) {
$clientArguments[] = "string \$body";
$clientArguments[] = "array \$headers = []";
$channelArguments[] = "string \$body";
$channelArguments[] = "array \$headers = []";
$channelClientArguments[] = "\$body";
$channelClientArguments[] = "\$headers";
}
$static = true;
$staticPayloadSize = 4; // class-id + method-id shorts
$payloadSizeExpressions = [];
$previousType = null;
foreach ($method->arguments as $argument) {
if (isset($argument->type)) {
$type = $argument->type;
} elseif (isset($argument->domain)) {
$type = domainToType($argument->domain);
} else {
throw new \InvalidArgumentException("{$class->name}.{$method->name}({$argument->name})");
}
if ($argument->name === "nowait") {
$hasNowait = true;
}
$name = lcfirst(dashedToCamel($argument->name));
if ($class->id === 10 && $method->id === 50 || $class->id === 20 && $method->id === 40) {
if ($name === "classId") {
$name = "closeClassId";
} elseif ($name === "methodId") {
$name = "closeMethodId";
}
} elseif ($class->id === 40 && $method->id === 10 && $name === "type") {
$name = "exchangeType";
}
if ($type === "bit") {
if ($previousType !== "bit") {
$staticPayloadSize += 1;
}
} else {
list($staticSize, $dynamicSize) = amqpTypeToLength($type, "\${$name}");
if ($staticSize === null && $dynamicSize === null) {
$static = false;
break;
}
if ($staticSize !== null) {
$staticPayloadSize += $staticSize;
}
if ($dynamicSize !== null) {
$payloadSizeExpressions[] = $dynamicSize;
}
}
$previousType = $type;
}
array_unshift($payloadSizeExpressions, $staticPayloadSize);
$previousType = null;
foreach ([
...array_filter($method->arguments, static fn (\stdClass $argument): bool => !(isset($argument->{'default-value'}) || (isset($argument->{'default-value'}) && $argument->{'default-value'} instanceof \stdClass))),
...array_filter($method->arguments, static fn (\stdClass $argument): bool => isset($argument->{'default-value'}) || (isset($argument->{'default-value'}) && $argument->{'default-value'} instanceof \stdClass)),
] as $argument) {
if (isset($argument->type)) {
$type = $argument->type;
} elseif (isset($argument->domain)) {
$type = domainToType($argument->domain);
} else {
throw new \InvalidArgumentException("{$class->name}.{$method->name}({$argument->name})");
}
$name = lcfirst(dashedToCamel($argument->name));
if ($class->id === 10 && $method->id === 50 || $class->id === 20 && $method->id === 40) {
if ($name === "classId") {
$name = "closeClassId";
} elseif ($name === "methodId") {
$name = "closeMethodId";
}
} elseif ($class->id === 40 && $method->id === 10 && $name === "type") {
$name = "exchangeType";
}
$properties .= " /** @var " . amqpTypeToPhpType($type) . (amqpTypeToPhpType($type) === 'array' ? '<mixed>' : '') . " */\n";
$defaultValue = null;
if (isset($argument->{'default-value'}) && $argument->{'default-value'} instanceof \stdClass) {
$defaultValue = "[]";
} elseif (isset($argument->{'default-value'})) {
$defaultValue = var_export($argument->{'default-value'}, true);
}
$properties .= " public \${$name}" . ($defaultValue !== null ? " = {$defaultValue}" : "") . ";\n\n";
if (strpos($name, "reserved") !== 0) {
$clientArguments[] = amqpTypeToPhpType($type) . ' $' . $name . ($defaultValue !== null ? " = {$defaultValue}" : "");
$channelArguments[] = amqpTypeToPhpType($type) . ' $' . $name . ($defaultValue !== null ? " = {$defaultValue}" : "");
$channelClientArguments[] = "\${$name}";
}
}
foreach ($method->arguments as $argument) {
if (isset($argument->type)) {
$type = $argument->type;
} elseif (isset($argument->domain)) {
$type = domainToType($argument->domain);
} else {
throw new \InvalidArgumentException("{$class->name}.{$method->name}({$argument->name})");
}
$name = lcfirst(dashedToCamel($argument->name));
if ($class->id === 10 && $method->id === 50 || $class->id === 20 && $method->id === 40) {
if ($name === "classId") {
$name = "closeClassId";
} elseif ($name === "methodId") {
$name = "closeMethodId";
}
} elseif ($class->id === 40 && $method->id === 10 && $name === "type") {
$name = "exchangeType";
}
if ($type === "bit") {
$bitVars[] = "\$frame->{$name}";
} else {
if ($previousType === "bit") {
$consumeContent .= " list(" . implode(", ", $bitVars) . ") = \$this->consumeBits(\$buffer, " . count($bitVars) . ");\n";
$bitVars = [];
}
$consumeContent .= " \$frame->{$name} = " . amqpTypeToConsume($type) . ";\n";
}
if ($type === "bit") {
$appendBitExpressions[] = "\$frame->{$name}";
$clientAppendBitExpressions[] = "\${$name}";
} else {
if ($previousType === "bit") {
$appendContent .= " \$this->appendBits([" . implode(", ", $appendBitExpressions) . "], \$buffer);\n";
$appendBitExpressions = [];
$clientAppendContent .= " \$this->writer->appendBits([" . implode(", ", $clientAppendBitExpressions) . "], \$buffer);\n";
$clientAppendBitExpressions = [];
}
$appendContent .= " " . amqpTypeToAppend($type, "\$frame->{$name}") . ";\n";
if (strpos($name, "reserved") === 0) {
$clientAppendContent .= " " . amqpTypeToAppend($type, "0") . ";\n";
} elseif ($type === "table") {
$clientAppendContent .= " \$this->writer->appendTable(\${$name}, \$buffer);\n";
} else {
$clientAppendContent .= " " . amqpTypeToAppend($type, "\${$name}") . ";\n";
}
}
$previousType = $type;
if (strpos($name, "reserved") !== 0) {
$clientSetters[] = "\$frame->{$name} = \${$name};";
}
}
if ($previousType === "bit") {
$appendContent .= " \$this->appendBits([" . implode(", ", $appendBitExpressions) . "], \$buffer);\n";
$appendBitExpressions = [];
$clientAppendContent .= " \$this->writer->appendBits([" . implode(", ", $clientAppendBitExpressions) . "], \$buffer);\n";
$clientAppendBitExpressions = [];
}
if ($previousType === "bit") {
$consumeContent .= " list(" . implode(", ", $bitVars) . ") = \$this->consumeBits(\$buffer, " . count($bitVars) . ");\n";
$bitVars = [];
}
$content .= $properties;
$methodIdConstant = "Constants::" . dashedToUnderscores("method-" . $class->name . "-" . $method->name);
$content .= " public function __construct()\n";
$content .= " {\n";
$content .= " parent::__construct({$classIdConstant}, {$methodIdConstant});\n";
if ($class->id === 10) {
$content .= " \$this->channel = Constants::CONNECTION_CHANNEL;\n";
}
$content .= " }\n\n";
$content .= $gettersSetters;
$content .= "}\n";
file_put_contents(__DIR__ . "/../src/Protocol/{$className}.php", $content);
$consumeMethodFrameContent .= "if (\$methodId === {$methodIdConstant}) {\n";
$consumeMethodFrameContent .= $consumeContent;
$consumeMethodFrameContent .= " } else";
$appendMethodFrameContent .= "if (\$frame instanceof {$className}) {\n";
$appendMethodFrameContent .= $appendContent;
$appendMethodFrameContent .= " } else";
$methodName = dashedToCamel(($class->name !== "basic" ? $class->name . "-" : "") . $method->name);
if (!isset($method->direction) || $method->direction === "CS") {
$connectionContent .= " public function " . lcfirst($methodName) . "(" . implode(", ", $clientArguments) . "): bool" . (isset($method->synchronous) && $method->synchronous ? "|Protocol\\" . dashedToCamel("method-" . $class->name . "-" . $method->name . "-ok-frame") : "") . ($class->id === 60 && $method->id === 70 ? "|Protocol\\MethodBasicGetEmptyFrame" : "") . "\n";
$connectionContent .= " {\n";
if ($static) {
$connectionContent .= " \$buffer = \$this->writeBuffer;\n";
if ($class->id === 60 && $method->id === 40) {
$connectionContent .= " \$ck = serialize([\$channel, \$headers, \$exchange, \$routingKey, \$mandatory, \$immediate]);\n";
$connectionContent .= " \$c = \$this->cache[\$ck] ?? null;\n";
$connectionContent .= " \$flags = \$off0 = \$len0 = \$off1 = \$len1 = 0;\n";
$connectionContent .= " \$contentTypeLength = \$contentType = \$contentEncodingLength = \$contentEncoding = \$headersBuffer = \$deliveryMode = \$priority = \$correlationIdLength = \$correlationId = \$replyToLength = \$replyTo = \$expirationLength = \$expiration = \$messageIdLength = \$messageId = \$timestamp = \$typeLength = \$type = \$userIdLength = \$userId = \$appIdLength = \$appId = \$clusterIdLength = \$clusterId = null;\n";
$connectionContent .= " if (\$c) { \$buffer->append(\$c[0]); }\n";
$connectionContent .= " else {\n";
$connectionContent .= " \$off0 = \$buffer->getLength();\n";
}
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_METHOD . ");\n";
$connectionContent .= " \$buffer->appendUint16(" . ($class->id === 10 ? Constants::CONNECTION_CHANNEL : "\$channel") . ");\n";
$connectionContent .= " \$buffer->appendUint32(" . implode(" + ", $payloadSizeExpressions) . ");\n";
} else {
$connectionContent .= " \$buffer = new Buffer();\n";
}
$connectionContent .= " \$buffer->appendUint16({$class->id});\n";
$connectionContent .= " \$buffer->appendUint16({$method->id});\n";
$connectionContent .= $clientAppendContent;
if ($static) {
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_END . ");\n";
} else {
$connectionContent .= " \$frame = new Protocol\\MethodFrame({$class->id}, {$method->id});\n";
$connectionContent .= " \$frame->channel = " . ($class->id === 10 ? Constants::CONNECTION_CHANNEL : "\$channel") . ";\n";
$connectionContent .= " \$frame->payloadSize = \$buffer->getLength();\n";
$connectionContent .= " \$frame->payload = \$buffer;\n";
$connectionContent .= " \$this->writer->appendFrame(\$frame, \$this->writeBuffer);\n";
}
if (isset($method->content) && $method->content) {
if (!$static) {
$connectionContent .= " \$buffer = \$this->writeBuffer;\n";
}
// FIXME: respect max body size agreed upon connection.tune
$connectionContent .= " \$s = 14;\n";
$connectionContent .= "\n";
foreach ([
ContentHeaderFrame::FLAG_CONTENT_TYPE => ["content-type", 1, "\$contentTypeLength = strlen(\$contentType)"],
ContentHeaderFrame::FLAG_CONTENT_ENCODING => ["content-encoding", 1, "\$contentEncodingLength = strlen(\$contentEncoding)"],
ContentHeaderFrame::FLAG_DELIVERY_MODE => ["delivery-mode", 1, null],
ContentHeaderFrame::FLAG_PRIORITY => ["priority", 1, null],
ContentHeaderFrame::FLAG_CORRELATION_ID => ["correlation-id", 1, "\$correlationIdLength = strlen(\$correlationId)"],
ContentHeaderFrame::FLAG_REPLY_TO => ["reply-to", 1, "\$replyToLength = strlen(\$replyTo)"],
ContentHeaderFrame::FLAG_EXPIRATION => ["expiration", 1, "\$expirationLength = strlen(\$expiration)"],
ContentHeaderFrame::FLAG_MESSAGE_ID => ["message-id", 1, "\$messageIdLength = strlen(\$messageId)"],
ContentHeaderFrame::FLAG_TIMESTAMP => ["timestamp", 8, null],
ContentHeaderFrame::FLAG_TYPE => ["type", 1, "\$typeLength = strlen(\$type)"],
ContentHeaderFrame::FLAG_USER_ID => ["user-id", 1, "\$userIdLength = strlen(\$userId)"],
ContentHeaderFrame::FLAG_APP_ID => ["app-id", 1, "\$appIdLength = strlen(\$appId)"],
ContentHeaderFrame::FLAG_CLUSTER_ID => ["cluster-id", 1, "\$clusterIdLength = strlen(\$clusterId)"],
] as $flag => $property
) {
list($propertyName, $staticSize, $dynamicSize) = $property;
$connectionContent .= " if (\$" . lcfirst(dashedToCamel($propertyName)) . " = \$headers['{$propertyName}'] ?? null) {\n";
$connectionContent .= " \$flags |= {$flag};\n";
if ($staticSize) {
$connectionContent .= " \$s += {$staticSize};\n";
}
if ($dynamicSize) {
$connectionContent .= " \$s += {$dynamicSize};\n";
}
$connectionContent .= " unset(\$headers['{$propertyName}']);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
}
$connectionContent .= " if (!empty(\$headers)) {\n";
$connectionContent .= " \$flags |= " . ContentHeaderFrame::FLAG_HEADERS . ";\n";
$connectionContent .= " \$this->writer->appendTable(\$headers, \$headersBuffer = new Buffer());\n";
$connectionContent .= " \$s += \$headersBuffer->getLength();\n";
$connectionContent .= " }\n";
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_HEADER . ");\n";
$connectionContent .= " \$buffer->appendUint16(\$channel);\n";
$connectionContent .= " \$buffer->appendUint32(\$s);\n";
$connectionContent .= " \$buffer->appendUint16({$class->id});\n";
$connectionContent .= " \$buffer->appendUint16(0);\n";
if ($class->id === 60 && $method->id === 40) {
$connectionContent .= " \$len0 = \$buffer->getLength() - \$off0;\n";
$connectionContent .= " }\n";
}
$connectionContent .= " \$buffer->appendUint64(strlen(\$body));\n";
if ($class->id === 60 && $method->id === 40) {
$connectionContent .= " if (\$c) { \$buffer->append(\$c[1]); }\n";
$connectionContent .= " else {\n";
$connectionContent .= " \$off1 = \$buffer->getLength();\n";
}
$connectionContent .= " \$buffer->appendUint16(\$flags);\n";
foreach ([
ContentHeaderFrame::FLAG_CONTENT_TYPE => "\$buffer->appendUint8(\$contentTypeLength); \$buffer->append(\$contentType);",
ContentHeaderFrame::FLAG_CONTENT_ENCODING => "\$buffer->appendUint8(\$contentEncodingLength); \$buffer->append(\$contentEncoding);",
ContentHeaderFrame::FLAG_HEADERS => "\$buffer->append(\$headersBuffer);",
ContentHeaderFrame::FLAG_DELIVERY_MODE => "\$buffer->appendUint8(\$deliveryMode);",
ContentHeaderFrame::FLAG_PRIORITY => "\$buffer->appendUint8(\$priority);",
ContentHeaderFrame::FLAG_CORRELATION_ID => "\$buffer->appendUint8(\$correlationIdLength); \$buffer->append(\$correlationId);",
ContentHeaderFrame::FLAG_REPLY_TO => "\$buffer->appendUint8(\$replyToLength); \$buffer->append(\$replyTo);",
ContentHeaderFrame::FLAG_EXPIRATION => "\$buffer->appendUint8(\$expirationLength); \$buffer->append(\$expiration);",
ContentHeaderFrame::FLAG_MESSAGE_ID => "\$buffer->appendUint8(\$messageIdLength); \$buffer->append(\$messageId);",
ContentHeaderFrame::FLAG_TIMESTAMP => "\$this->writer->appendTimestamp(\$timestamp, \$buffer);",
ContentHeaderFrame::FLAG_TYPE => "\$buffer->appendUint8(\$typeLength); \$buffer->append(\$type);",
ContentHeaderFrame::FLAG_USER_ID => "\$buffer->appendUint8(\$userIdLength); \$buffer->append(\$userId);",
ContentHeaderFrame::FLAG_APP_ID => "\$buffer->appendUint8(\$appIdLength); \$buffer->append(\$appId);",
ContentHeaderFrame::FLAG_CLUSTER_ID => "\$buffer->appendUint8(\$clusterIdLength); \$buffer->append(\$clusterId);",
] as $flag => $property
) {
$connectionContent .= " if (\$flags & {$flag}) {\n";
$connectionContent .= " {$property}\n";
$connectionContent .= " }\n";
}
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_END . ");\n";
if ($class->id === 60 && $method->id === 40) {
$connectionContent .= " \$len1 = \$buffer->getLength() - \$off1;\n";
$connectionContent .= " }\n";
$connectionContent .= " if (!\$c) {\n";
$connectionContent .= " \$this->cache[\$ck] = [\$buffer->read(\$len0, \$off0), \$buffer->read(\$len1, \$off1)];\n";
$connectionContent .= " if (count(\$this->cache) > 100) { reset(\$this->cache); unset(\$this->cache[key(\$this->cache)]); }\n";
$connectionContent .= " }\n";
}
$connectionContent .= " for (\$payloadMax = \$this->client->frameMax - 8 /* frame preface and frame end */, \$i = 0, \$l = strlen(\$body); \$i < \$l; \$i += \$payloadMax) {\n";
$connectionContent .= " \$payloadSize = \$l - \$i; if (\$payloadSize > \$payloadMax) { \$payloadSize = \$payloadMax; }\n";
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_BODY . ");\n";
$connectionContent .= " \$buffer->appendUint16(\$channel);\n";
$connectionContent .= " \$buffer->appendUint32(\$payloadSize);\n";
$connectionContent .= " \$buffer->append(substr(\$body, \$i, \$payloadSize));\n";
$connectionContent .= " \$buffer->appendUint8(" . Constants::FRAME_END . ");\n";
$connectionContent .= " }\n";
}
if (isset($method->synchronous) && $method->synchronous && $hasNowait) {
$connectionContent .= " \$this->flushWriteBuffer();\n";
$connectionContent .= " if (!\$nowait) {\n";
$connectionContent .= " return \$this->await" . $methodName . "Ok(" . ($class->id !== 10 ? "\$channel" : "") . ");\n";
$connectionContent .= " }\n";
$connectionContent .= " return false;\n";
} elseif (isset($method->synchronous) && $method->synchronous) {
$connectionContent .= " \$this->flushWriteBuffer();\n";
$connectionContent .= " return \$this->await" . $methodName . "Ok(" . ($class->id !== 10 ? "\$channel" : "") . ");\n";
} else {
$connectionContent .= " \$this->flushWriteBuffer();\n";
$connectionContent .= " return false;\n";
}
$connectionContent .= " }\n\n";
}
if (!isset($method->direction) || $method->direction === "SC") {
$connectionContent .= " public function await" . $methodName . "(" . ($class->id !== 10 ? "int \$channel" : "") . "): Protocol\\{$className}" . ($class->id === 60 && $method->id === 71 ? '|Protocol\\' . str_replace("GetOk", "GetEmpty", $className) : "") . "\n";
$connectionContent .= " {\n";
// async await
$connectionContent .= " \$deferred = new Deferred();\n";
$connectionContent .= " \$this->awaitList[] = [\n";
$connectionContent .= " 'filter' => function (Protocol\\AbstractFrame \$frame)" . ($class->id !== 10 ? " use (\$channel)" : "") . ": bool {\n";
if ($class->id !== 10 || $method->id !== 50) {
$connectionContent .= " if (\$frame instanceof Protocol\\{$className}" . ($class->id !== 10 ? " && \$frame->channel === \$channel" : "") . ") {\n";
$connectionContent .= " return true;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
}
if ($class->id === 60 && $method->id === 71) {
$connectionContent .= " if (\$frame instanceof Protocol\\" . str_replace("GetOk", "GetEmpty", $className) . ($class->id !== 10 ? " && \$frame->channel === \$channel" : "") . ") {\n";
$connectionContent .= " return true;\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
}
if ($class->id !== 10) {
$connectionContent .= " if (\$frame instanceof Protocol\\MethodChannelCloseFrame && \$frame->channel === \$channel) {\n";
$connectionContent .= " \$this->channelCloseOk(\$channel);\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
}
$connectionContent .= " if (\$frame instanceof Protocol\\MethodConnectionCloseFrame) {\n";
$connectionContent .= " \$this->connectionCloseOk();\n";
$connectionContent .= " throw new ClientException(\$frame->replyText, \$frame->replyCode);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " return false;\n";
$connectionContent .= " },\n";
$connectionContent .= " 'promise' => \$deferred,\n";
$connectionContent .= " ];\n";
$connectionContent .= " return await(\$deferred->promise());\n";
$connectionContent .= " }\n\n";
}
if ($class->id !== 10 &&
$class->id !== 20 &&
$class->id !== 30 &&
(!isset($method->direction) || $method->direction === "CS")
) {
$channelMethodsContent .= " /**\n";
$channelMethodsContent .= " * Calls {$class->name}.{$method->name} AMQP method.\n";
$channelMethodsContent .= " */\n";
$channelMethodsContent .= " public function " . lcfirst($methodName) . "(" . implode(", ", $channelArguments) . "): bool" . (isset($method->synchronous) && $method->synchronous ? "|Protocol\\" . dashedToCamel("method-" . $class->name . "-" . $method->name . "-ok-frame") : "") . ($class->id === 60 && $method->id === 70 ? "|Protocol\\MethodBasicGetEmptyFrame" : "") . "\n";
$channelMethodsContent .= " {\n";
$channelMethodsContent .= " return \$this->getClient()->" . lcfirst($methodName) . "(" . implode(", ", $channelClientArguments) . ");\n";
$channelMethodsContent .= " }\n\n";
}
}
$consumeMethodFrameContent .= " {\n";
$consumeMethodFrameContent .= " throw new InvalidMethodException(\$classId, \$methodId);\n";
$consumeMethodFrameContent .= " }\n";
$consumeMethodFrameContent .= " } else";
}
$consumeMethodFrameContent .= " {\n";
$consumeMethodFrameContent .= " throw new InvalidClassException(\$classId);\n";
$consumeMethodFrameContent .= " }\n\n";
$consumeMethodFrameContent .= " \$frame->classId = \$classId;\n";
$consumeMethodFrameContent .= " \$frame->methodId = \$methodId;\n";
$consumeMethodFrameContent .= "\n";
$consumeMethodFrameContent .= " return \$frame;\n";
$consumeMethodFrameContent .= " }\n\n";
$protocolReaderContent .= $consumeMethodFrameContent;
$protocolReaderContent .= "}\n";
file_put_contents(__DIR__ . "/../src/Protocol/ProtocolReaderGenerated.php", $protocolReaderContent);
$appendMethodFrameContent .= " {\n";
$appendMethodFrameContent .= " throw new ProtocolException('Unhandled method frame ' . get_class(\$frame) . '.');\n";
$appendMethodFrameContent .= " }\n";
$appendMethodFrameContent .= " }\n\n";
$protocolWriterContent .= $appendMethodFrameContent;
$protocolWriterContent .= "}\n";
file_put_contents(__DIR__ . "/../src/Protocol/ProtocolWriterGenerated.php", $protocolWriterContent);
$connectionContent .= " public function startHeartbeatTimer(): void\n";
$connectionContent .= " {\n";
$connectionContent .= " \$this->heartbeatTimer = Loop::addTimer(\$this->options['heartbeat'], [\$this, 'onHeartbeat']);\n";
$connectionContent .= " \$this->connection->on('drain', [\$this, 'onHeartbeat']);\n";
$connectionContent .= " }\n";
$connectionContent .= "\n";
$connectionContent .= " /**\n";
$connectionContent .= " * Callback when heartbeat timer timed out.\n";
$connectionContent .= " */\n";
$connectionContent .= " public function onHeartbeat(): void\n";
$connectionContent .= " {\n";
$connectionContent .= " \$now = microtime(true);\n";
$connectionContent .= " \$nextHeartbeat = (\$this->lastWrite ?: \$now) + \$this->options['heartbeat'];\n";
$connectionContent .= "\n";
$connectionContent .= " if (\$now >= \$nextHeartbeat) {\n";
$connectionContent .= " \$this->writer->appendFrame(new HeartbeatFrame(), \$this->writeBuffer);\n";
$connectionContent .= " \$this->flushWriteBuffer();\n";
$connectionContent .= "\n";
$connectionContent .= " \$this->heartbeatTimer = Loop::addTimer(\$this->options['heartbeat'], [\$this, 'onHeartbeat']);\n";
$connectionContent .= " if (is_callable(\$this->options['heartbeat_callback'] ?? null)) {\n";
$connectionContent .= " \$this->options['heartbeat_callback'](\$this);\n";
$connectionContent .= " }\n";
$connectionContent .= " } else {\n";
$connectionContent .= " \$this->heartbeatTimer = Loop::addTimer(\$nextHeartbeat - \$now, [\$this, 'onHeartbeat']);\n";
$connectionContent .= " }\n";
$connectionContent .= " }\n";
$connectionContent .= "}\n";
file_put_contents(__DIR__ . "/../src/Connection.php", $connectionContent);
$channelMethodsContent .= "}\n";
file_put_contents(__DIR__ . "/../src/ChannelMethods.php", $channelMethodsContent);