341 lines
13 KiB
PHP
341 lines
13 KiB
PHP
<?php
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function disjoint_set_find(&$parents, $x) {
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if ($parents[$x] !== $x) {
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return $parents[$x] = disjoint_set_find($parents, $parents[$x]);
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}
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return $x;
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}
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function disjoint_set_union(&$parents, $x, $y) {
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$x = disjoint_set_find($parents, $x);
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$y = disjoint_set_find($parents, $y);
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if ($x !== $y) {
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if (rand(0, 1) == 0) {
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$parents[$x] = $y;
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} else {
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$parents[$y] = $x;
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}
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}
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}
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function split_file($file, $chunks, $undo) {
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$cpp_name = "$file.cpp";
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echo "Processing file $cpp_name".PHP_EOL;
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$new_files = array();
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foreach (range(0, $chunks - 1) as $n) {
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$new_files[] = "$file$n.cpp";
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}
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$is_generated = (strpos($file, 'td/generate/') === 0);
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$cmake_file = $is_generated ? 'td/generate/CMakeLists.txt' : 'CMakeLists.txt';
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$cmake = file_get_contents($cmake_file);
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$cmake_cpp_name = $cpp_name;
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$cmake_new_files = $new_files;
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if ($is_generated) {
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foreach ($cmake_new_files as &$file_ref) {
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$file_ref = str_replace('td/generate', '${CMAKE_CURRENT_SOURCE_DIR}', $file_ref);
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}
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$cmake_cpp_name = str_replace('td/generate', '${CMAKE_CURRENT_SOURCE_DIR}', $cmake_cpp_name);
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}
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if ($undo) {
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foreach ($new_files as $file) {
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if (file_exists($file)) {
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echo "Unlinking ".$file.PHP_EOL;
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unlink($file);
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}
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}
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if (strpos($cmake, $cmake_cpp_name) === false) {
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$cmake = str_replace(implode(PHP_EOL.' ', $cmake_new_files), $cmake_cpp_name, $cmake);
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file_put_contents($cmake_file, $cmake);
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}
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return;
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}
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if (strpos($cmake, $cmake_cpp_name) !== false) {
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$cmake = str_replace($cmake_cpp_name, implode(PHP_EOL.' ', $cmake_new_files), $cmake);
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file_put_contents($cmake_file, $cmake);
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}
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if (!file_exists($cpp_name)) {
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echo "ERROR: skip unexisting file $cpp_name".PHP_EOL;
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return;
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}
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$lines = file($cpp_name);
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$depth = 0;
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$target_depth = 1 + $is_generated;
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$is_static = false;
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$in_define = false;
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$current = '';
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$common = '';
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$functions = array();
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$namespace_begin = '';
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$namespace_end = '';
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foreach ($lines as $line) {
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$add_depth = strpos($line, 'namespace ') === 0 ? 1 : (strpos($line, '} // namespace') === 0 ? -1 : 0);
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if ($add_depth) {
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# namespace begin/end
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if ($add_depth > 0) {
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$depth += $add_depth;
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}
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if ($depth <= $target_depth) {
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if ($add_depth > 0) {
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$namespace_begin .= $line;
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} else {
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$namespace_end .= $line;
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}
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}
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if ($add_depth < 0) {
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$depth += $add_depth;
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}
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if ($is_static) {
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$common .= $current;
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} else {
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$functions[] = $current;
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}
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$common .= $line;
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$current = '';
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$is_static = false;
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$in_define = false;
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continue;
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}
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if (strpos($line, '#undef') === 0 && !trim($current)) {
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continue;
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}
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if ($depth !== $target_depth) {
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$common .= $line;
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continue;
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}
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if (strpos($line, 'static ') === 0 && $depth === $target_depth) {
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$is_static = true;
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}
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if (!trim($current) && strpos($line, '#define ') === 0) {
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$is_static = true;
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$in_define = true;
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}
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$current .= $line;
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if ((strpos($line, '}') === 0 || ($in_define && !trim($line)) || preg_match('/^[a-z].*;\s*$/i', $line)) && $depth === $target_depth) {
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# block end
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if ($is_static) {
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$common .= $current;
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} else {
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$functions[] = $current;
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}
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$current = '';
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$is_static = false;
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$in_define = false;
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}
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}
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if (!empty(trim($current))) {
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fwrite(STDERR, "ERROR: $current".PHP_EOL);
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exit();
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}
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if (count($functions) < $chunks) {
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fwrite(STDERR, "ERROR: file is too small to be splitted more".PHP_EOL);
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return;
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}
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$deps = array(); // all functions from the same subarray must be in the same file
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$parents = array();
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foreach ($functions as $i => $f) {
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if (preg_match_all('/(?J)(create_handler|create_net_actor)<(?<name>[A-Z][A-Za-z]*)>|'.
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'(?<name>[A-Z][A-Za-z]*) : public (Td::ResultHandler|NetActor|Request)|'.
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'(CREATE_REQUEST|CREATE_NO_ARGS_REQUEST)[(](?<name>[A-Z][A-Za-z]*)|'.
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'(?<name>complete_pending_preauthentication_requests)|'.
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'(Up|Down)load[a-zA-Z]*C(?<name>allback)|(up|down)load_[a-z_]*_c(?<name>allback)_|'.
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'(?<name>lazy_to_json)|'.
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'(?<name>LogEvent)[^sA]|'.
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'(?<name>parse)[(]|'.
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'(?<name>store)[(]/', $f, $matches, PREG_SET_ORDER)) {
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foreach ($matches as $match) {
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$name = $match['name'];
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if ($name === 'parse' || $name === 'store') {
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if ($is_generated) {
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continue;
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}
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$name = 'LogEvent';
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}
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$deps[$name][] = $i;
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}
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}
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$parents[$i] = $i;
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}
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foreach ($deps as $func_ids) {
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foreach ($func_ids as $func_id) {
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disjoint_set_union($parents, $func_ids[0], $func_id);
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}
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}
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$sets = array();
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$set_sizes = array();
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foreach ($functions as $i => $f) {
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$parent = disjoint_set_find($parents, $i);
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if (!isset($sets[$parent])) {
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$sets[$parent] = '';
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$set_sizes[$parent] = 0;
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}
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$sets[$parent] .= $f;
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$set_sizes[$parent] += preg_match('/Td::~?Td/', $f) ? 1000000 : strlen($f);
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}
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arsort($set_sizes);
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$files = array_fill(0, $chunks, '');
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$file_sizes = array_fill(0, $chunks, 0);
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foreach ($set_sizes as $parent => $size) {
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$file_id = array_search(min($file_sizes), $file_sizes);
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$files[$file_id] .= $sets[$parent];
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$file_sizes[$file_id] += $size;
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}
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foreach ($files as $n => $f) {
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$new_content = $common.$namespace_begin.$f.$namespace_end;
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$std_methods = array();
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preg_match_all('/std::[a-z_0-9]*/', $new_content, $std_methods);
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$std_methods = array_unique($std_methods[0]);
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$needed_std_headers = array();
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$type_headers = array(
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'std::move' => '',
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'std::vector' => '',
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'std::string' => '',
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'std::uint32_t' => '',
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'std::int32_t' => '',
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'std::int64_t' => '',
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'std::fill' => 'algorithm',
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'std::find' => 'algorithm',
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'std::max' => 'algorithm',
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'std::min' => 'algorithm',
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'std::remove' => 'algorithm',
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'std::reverse' => 'algorithm',
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'std::rotate' => 'algorithm',
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'std::sort' => 'algorithm',
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'std::abs' => 'cmath',
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'std::numeric_limits' => 'limits',
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'std::make_shared' => 'memory',
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'std::shared_ptr' => 'memory',
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'std::tie' => 'tuple',
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'std::tuple' => 'tuple',
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'std::decay_t' => 'type_traits',
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'std::is_same' => 'type_traits',
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'std::make_pair' => 'utility',
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'std::pair' => 'utility',
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'std::swap' => 'utility',
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'std::unordered_map' => 'unordered_map',
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'std::unordered_set' => 'unordered_set');
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foreach ($type_headers as $type => $header) {
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if (in_array($type, $std_methods)) {
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$std_methods = array_diff($std_methods, array($type));
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if ($header && !in_array($header, $needed_std_headers)) {
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$needed_std_headers[] = $header;
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}
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}
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}
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if (!$std_methods) { // know all needed std headers
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$new_content = preg_replace_callback(
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'/#include <([a-z_]*)>/',
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function ($matches) use ($needed_std_headers) {
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if (in_array($matches[1], $needed_std_headers)) {
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return $matches[0];
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}
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return '';
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},
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$new_content
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);
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}
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if (!preg_match('/Td::~?Td/', $new_content)) { // destructor Td::~Td needs to see definitions of all forward-declared classes
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$td_methods = array(
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'animations_manager[_(-][^.]|AnimationsManager[^;>]' => "AnimationsManager",
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'audios_manager[_(-][^.]|AudiosManager' => "AudiosManager",
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'auth_manager[_(-][^.]|AuthManager' => 'AuthManager',
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'ConfigShared|shared_config[(]' => 'ConfigShared',
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'contacts_manager[_(-][^.]|ContactsManager([^ ;.]| [^*])' => 'ContactsManager',
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'documents_manager[_(-][^.]|DocumentsManager' => "DocumentsManager",
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'file_reference_manager[_(-][^.]|FileReferenceManager|file_references[)]' => 'FileReferenceManager',
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'file_manager[_(-][^.]|FileManager([^ ;.]| [^*])|update_file[)]' => 'files/FileManager',
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'G[(][)]|Global[^A-Za-z]' => 'Global',
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'HashtagHints' => 'HashtagHints',
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'inline_queries_manager[_(-][^.]|InlineQueriesManager' => 'InlineQueriesManager',
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'language_pack_manager[_(-][^.]|LanguagePackManager' => 'LanguagePackManager',
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'get_erase_logevent_promise|parse_time|store_time' => 'logevent/LogEventHelper',
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'messages_manager[_(-][^.]|MessagesManager' => 'MessagesManager',
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'notification_manager[_(-][^.]|NotificationManager|notifications[)]' => 'NotificationManager',
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'PublicDialogType|get_public_dialog_type' => 'PublicDialogType',
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'SecretChatActor' => 'SecretChatActor',
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'secret_chats_manager[_(-][^.]|SecretChatsManager' => 'SecretChatsManager',
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'stickers_manager[_(-][^.]|StickersManager' => 'StickersManager',
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'[>](td_db[(][)]|get_td_db_impl[(])|TdDb[^A-Za-z]' => 'TdDb',
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'TopDialogCategory|top_dialog_category_from_td_api' => 'TopDialogCategory',
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'top_dialog_manager[_(-][^.]|TopDialogManager' => 'TopDialogManager',
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'updates_manager[_(-][^.]|UpdatesManager|get_difference[)]' => 'UpdatesManager',
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'WebPageId(Hash)?' => 'WebPageId',
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'web_pages_manager[_(-][^.]|WebPagesManager' => 'WebPagesManager');
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foreach ($td_methods as $pattern => $header) {
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if (strpos($cpp_name, $header) !== false) {
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continue;
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}
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$include_name = '#include "td/telegram/'.$header.'.h"';
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if (strpos($new_content, $include_name) !== false && preg_match('/'.$pattern.'/', str_replace($include_name, '', $new_content)) === 0) {
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$new_content = str_replace($include_name, '', $new_content);
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}
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}
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} else {
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$new_content = preg_replace_callback(
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'|#include "[a-z_A-Z/0-9.]*"|',
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function ($matches) {
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if (strpos($matches[0], "Manager") !== false || strpos($matches[0], "HashtagHints") !== false || strpos($matches[0], "Td.h") !== false) {
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return $matches[0];
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}
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return '';
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},
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$new_content
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);
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}
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if (!file_exists($new_files[$n]) || file_get_contents($new_files[$n]) !== $new_content) {
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echo "Writing file ".$new_files[$n].PHP_EOL;
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file_put_contents($new_files[$n], $new_content);
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}
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}
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}
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if (in_array('--help', $argv) || in_array('-h', $argv)) {
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echo "Usage: php SplitSource.php [OPTION]...\n".
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"Splits some source files to reduce a maximum amount of RAM needed for compiling a single file.\n".
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" -u, --undo Undo all source code changes.\n".
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" -h, --help Show this help.\n";
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exit(2);
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}
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$undo = in_array('--undo', $argv) || in_array('-u', $argv);
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$files = array('td/telegram/ContactsManager' => 20,
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'td/telegram/MessagesManager' => 50,
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'td/telegram/NotificationManager' => 10,
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'td/telegram/StickersManager' => 10,
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'td/telegram/Td' => 50,
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'td/generate/auto/td/telegram/td_api' => 10,
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'td/generate/auto/td/telegram/td_api_json' => 10,
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'td/generate/auto/td/telegram/telegram_api' => 10);
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foreach ($files as $file => $chunks) {
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split_file($file, $chunks, $undo);
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}
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