generate_php_symbols.php
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	#!/usr/bin/env php
	<?php

	$root = dirname(dirname(dirname(__FILE__)));
	require_once $root.'/scripts/__init_script__.php';

	if ($argc !== 1 \|\| posix_isatty(STDIN)) {
	echo phutil_console_format(
	"usage: find . -type f -name '*.php' \| ./generate_php_symbols.php\n");
	exit(1);
	}

	$input = file_get_contents('php://stdin');
	$input = trim($input);
	$input = explode("\n", $input);

	$data = array();
	$futures = array();

	foreach ($input as $file) {
	$file = Filesystem::readablePath($file);
	$data[$file] = Filesystem::readFile($file);
	$futures[$file] = xhpast_get_parser_future($data[$file]);
	}

	$futures = id(new FutureIterator($futures))
	->limit(8);
	foreach ($futures as $file => $future) {
	$tree = XHPASTTree::newFromDataAndResolvedExecFuture(
	$data[$file],
	$future->resolve());

	$root = $tree->getRootNode();
	$scopes = array();

	$functions = $root->selectDescendantsOfType('n_FUNCTION_DECLARATION');
	foreach ($functions as $function) {
	$name = $function->getChildByIndex(2);
	// Skip anonymous functions
	if (!$name->getConcreteString()) {
	continue;
	}
	print_symbol($file, 'function', $name);
	}

	$classes = $root->selectDescendantsOfType('n_CLASS_DECLARATION');
	foreach ($classes as $class) {
	$class_name = $class->getChildByIndex(1);
	print_symbol($file, 'class', $class_name);
	$scopes[] = array($class, $class_name);
	}

	$interfaces = $root->selectDescendantsOfType('n_INTERFACE_DECLARATION');
	foreach ($interfaces as $interface) {
	$interface_name = $interface->getChildByIndex(1);
	// We don't differentiate classes and interfaces in highlighters.
	print_symbol($file, 'class', $interface_name);
	$scopes[] = array($interface, $interface_name);
	}

	$constants = $root->selectDescendantsOfType('n_CONSTANT_DECLARATION_LIST');
	foreach ($constants as $constant_list) {
	foreach ($constant_list->getChildren() as $constant) {
	$constant_name = $constant->getChildByIndex(0);
	print_symbol($file, 'constant', $constant_name);
	}
	}

	foreach ($scopes as $scope) {
	// this prints duplicate symbols in the case of nested classes
	// luckily, PHP doesn't allow those
	list($class, $class_name) = $scope;

	$consts = $class->selectDescendantsOfType(
	'n_CLASS_CONSTANT_DECLARATION_LIST');
	foreach ($consts as $const_list) {
	foreach ($const_list->getChildren() as $const) {
	$const_name = $const->getChildByIndex(0);
	print_symbol($file, 'class_const', $const_name, $class_name);
	}
	}

	$members = $class->selectDescendantsOfType(
	'n_CLASS_MEMBER_DECLARATION_LIST');
	foreach ($members as $member_list) {
	foreach ($member_list->getChildren() as $member) {
	if ($member->getTypeName() == 'n_CLASS_MEMBER_MODIFIER_LIST') {
	continue;
	}
	$member_name = $member->getChildByIndex(0);
	print_symbol($file, 'member', $member_name, $class_name);
	}
	}

	$methods = $class->selectDescendantsOfType('n_METHOD_DECLARATION');
	foreach ($methods as $method) {
	$method_name = $method->getChildByIndex(2);
	print_symbol($file, 'method', $method_name, $class_name);
	}
	}
	}

	function print_symbol($file, $type, $token, $context = null) {
	$parts = array(
	$context ? $context->getConcreteString() : '',
	// variable tokens are `$name`, not just `name`, so strip the $ off of
	// class field names
	ltrim($token->getConcreteString(), '$'),
	$type,
	'php',
	$token->getLineNumber(),
	'/'.ltrim($file, './'),
	);
	echo implode(' ', $parts)."\n";
	}

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