322 lines
12 KiB
PHP
322 lines
12 KiB
PHP
<?php
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abstract class TlDocumentationGenerator
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{
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private $current_line = '';
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private $documentation = array();
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private $line_replacement = array();
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final protected function printError($error)
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{
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fwrite(STDERR, "$error near line \"".rtrim($this->current_line)."\"\n");
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}
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final protected function addDocumentation($code, $doc) {
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if (isset($this->documentation[$code])) {
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$this->printError("Duplicate documentation for \"$code\"");
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}
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$this->documentation[$code] = $doc;
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// $this->printError($code);
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}
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final protected function addLineReplacement($line, $new_line) {
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if (isset($this->line_replacement[$line])) {
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$this->printError("Duplicate line replacement for \"$line\"");
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}
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$this->line_replacement[$line] = $new_line;
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}
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final protected function addDot($str) {
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if (!$str) {
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return '';
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}
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$len = strlen($str);
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if ($str[$len - 1] === '.') {
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return $str;
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}
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if ($str[$len - 1] === ')') {
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// trying to place dot inside the brackets
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$bracket_count = 1;
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for ($pos = $len - 2; $pos >= 0; $pos--) {
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if ($str[$pos] === ')') {
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$bracket_count++;
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}
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if ($str[$pos] === '(') {
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$bracket_count--;
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if ($bracket_count === 0) {
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break;
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}
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}
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}
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if ($bracket_count === 0) {
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if (ctype_upper($str[$pos + 1])) {
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return substr($str, 0, -1).'.)';
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}
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} else {
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$this->printError("Unmatched bracket");
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}
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}
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return $str.'.';
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}
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abstract protected function escapeDocumentation($doc);
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abstract protected function getFieldName($name, $class_name);
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abstract protected function getClassName($name);
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abstract protected function getTypeName($type);
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abstract protected function getBaseClassName($is_function);
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abstract protected function needRemoveLine($line);
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abstract protected function needSkipLine($line);
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abstract protected function isHeaderLine($line);
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abstract protected function extractClassName($line);
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abstract protected function fixLine($line);
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abstract protected function addGlobalDocumentation();
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abstract protected function addAbstractClassDocumentation($class_name, $value);
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abstract protected function getFunctionReturnTypeDescription($return_type, $for_constructor);
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abstract protected function addClassDocumentation($class_name, $base_class_name, $description);
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abstract protected function addFieldDocumentation($class_name, $field_name, $type_name, $field_info, $may_be_null);
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abstract protected function addDefaultConstructorDocumentation($class_name, $class_description);
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abstract protected function addFullConstructorDocumentation($class_name, $class_description, $known_fields, $info);
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public function generate($tl_scheme_file, $source_file)
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{
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$lines = array_filter(array_map('trim', file($tl_scheme_file)));
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$description = '';
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$current_class = '';
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$is_function = false;
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$need_class_description = false;
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$this->addGlobalDocumentation();
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foreach ($lines as $line) {
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$this->current_line = $line;
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if ($line === '---types---') {
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$is_function = false;
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} elseif ($line === '---functions---') {
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$is_function = true;
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$current_class = '';
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$need_class_description = false;
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} elseif ($line[0] === '/') {
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if ($line[1] !== '/') {
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$this->printError('Wrong comment');
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continue;
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}
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if ($line[2] === '@' || $line[2] === '-') {
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$description .= trim(substr($line, 2 + intval($line[2] === '-'))).' ';
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} else {
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$this->printError('Unexpected comment');
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}
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} elseif (strpos($line, '? =') || strpos($line, ' = Vector t;') || $line === 'boolFalse = Bool;' ||
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$line === 'boolTrue = Bool;' || $line === 'bytes = Bytes;' || $line === 'int32 = Int32;' ||
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$line === 'int53 = Int53;'|| $line === 'int64 = Int64;') {
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// skip built-in types
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continue;
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} else {
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$description = trim($description);
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if ($description[0] !== '@') {
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$this->printError('Wrong description begin');
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}
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$docs = explode('@', $description);
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array_shift($docs);
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$info = array();
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foreach ($docs as $doc) {
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list($key, $value) = explode(' ', $doc, 2);
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$value = trim($value);
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if ($need_class_description) {
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if ($key === 'description') {
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$need_class_description = false;
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$value = $this->escapeDocumentation($this->addDot($value));
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$this->addAbstractClassDocumentation($current_class, $value);
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continue;
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} else {
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$this->printError('Expected abstract class description');
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}
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}
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if ($key === 'class') {
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$current_class = $this->getClassName($value);
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$need_class_description = true;
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if ($is_function) {
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$this->printError('Unexpected class definition');
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}
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} else {
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if (isset($info[$key])) {
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$this->printError("Duplicate info about `$key`");
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}
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$info[$key] = trim($value);
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}
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}
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if (substr_count($line, '=') !== 1) {
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$this->printError("Wrong '=' count");
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continue;
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}
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list($fields, $type) = explode('=', $line);
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$type = $this->getClassName($type);
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$fields = explode(' ', trim($fields));
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$class_name = $this->getClassName(array_shift($fields));
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if ($type !== $current_class) {
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$current_class = '';
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$need_class_description = false;
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}
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if (!$is_function) {
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$type_lower = strtolower($type);
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$class_name_lower = strtolower($class_name);
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if (empty($current_class) === ($type_lower !== $class_name_lower)) {
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$this->printError('Wrong constructor name');
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}
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if (strpos($class_name_lower, $type_lower) !== 0) {
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// $this->printError('Wrong constructor name');
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}
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}
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$known_fields = array();
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foreach ($fields as $field) {
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list ($field_name, $field_type) = explode(':', $field);
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if (isset($info['param_'.$field_name])) {
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$known_fields['param_'.$field_name] = $field_type;
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continue;
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}
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if (isset($info[$field_name])) {
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$known_fields[$field_name] = $field_type;
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continue;
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}
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$this->printError("Have no info about field `$field_name`");
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}
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foreach ($info as $name => $value) {
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if (!$value) {
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$this->printError("info[$name] for $class_name is empty");
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} elseif (($value[0] < 'A' || $value[0] > 'Z') && ($value[0] < '0' || $value[0] > '9')) {
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$this->printError("info[$name] for $class_name doesn't begins with capital letter");
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}
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}
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foreach (array_diff_key($info, $known_fields) as $field_name => $field_info) {
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if ($field_name !== 'description') {
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$this->printError("Have info about unexisted field `$field_name`");
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}
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}
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if (!$info['description']) {
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$this->printError("Have no description for class `$class_name`");
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}
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foreach ($info as &$v) {
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$v = $this->escapeDocumentation($this->addDot($v));
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}
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$base_class_name = $current_class ?: $this->getBaseClassName($is_function);
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$class_description = $info['description'];
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if ($is_function) {
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$class_description .= $this->getFunctionReturnTypeDescription($this->getTypeName($type), false);
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}
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$this->addClassDocumentation($class_name, $base_class_name, $class_description);
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foreach ($known_fields as $name => $type) {
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$may_be_null = stripos($info[$name], 'may be null') !== false;
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$this->addFieldDocumentation($class_name, $this->getFieldName($name, $class_name), $this->getTypeName($type), $info[$name], $may_be_null);
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}
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if ($is_function) {
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$default_constructor_prefix = 'Default constructor for a function, which ';
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$full_constructor_prefix = 'Creates a function, which ';
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$class_description = lcfirst($info['description']);
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$class_description .= $this->getFunctionReturnTypeDescription($this->getTypeName($type), true);
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} else {
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$default_constructor_prefix = '';
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$full_constructor_prefix = '';
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}
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$this->addDefaultConstructorDocumentation($class_name, $default_constructor_prefix.$class_description);
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if ($known_fields) {
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$this->addFullConstructorDocumentation($class_name, $full_constructor_prefix.$class_description, $known_fields, $info);
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}
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$description = '';
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}
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}
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$lines = file($source_file);
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$result = '';
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$current_class = '';
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$current_headers = '';
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foreach ($lines as $line) {
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$this->current_line = $line;
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if ($this->needRemoveLine($line)) {
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continue;
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}
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if ($this->needSkipLine($line)) {
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$result .= $current_headers.$line;
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$current_headers = '';
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continue;
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}
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if ($this->isHeaderLine($line)) {
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$current_headers .= $line;
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continue;
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}
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$current_class = $this->extractClassName($line) ?: $current_class;
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$fixed_line = rtrim($this->fixLine($line));
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$doc = '';
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if (isset($this->documentation[$fixed_line])) {
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$doc = $this->documentation[$fixed_line];
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// unset($this->documentation[$fixed_line]);
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} elseif (isset($this->documentation[$current_class.$fixed_line])) {
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$doc = $this->documentation[$current_class.$fixed_line];
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// unset($this->documentation[$current_class.$fixed_line]);
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} else {
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$this->printError('Have no docs for "'.$fixed_line.'"');
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}
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if ($doc) {
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$result .= $doc."\n";
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}
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if (isset($this->line_replacement[$fixed_line])) {
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$line = $this->line_replacement[$fixed_line];
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} elseif (isset($this->line_replacement[$current_class.$fixed_line])) {
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$line = $this->line_replacement[$current_class.$fixed_line];
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}
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$result .= $current_headers.$line;
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$current_headers = '';
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}
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if (file_get_contents($source_file) !== $result) {
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file_put_contents($source_file, $result);
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}
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if (count($this->documentation)) {
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// $this->printError('Have unused docs '.print_r(array_keys($this->documentation), true));
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}
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}
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}
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