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diff --git a/src/parser/PhutilTypeSpec.php b/src/parser/PhutilTypeSpec.php
index c49fccf4..c7998074 100644
--- a/src/parser/PhutilTypeSpec.php
+++ b/src/parser/PhutilTypeSpec.php
@@ -1,1921 +1,1925 @@
<?php
/**
* Perform type checks using a simple type grammar. The grammar supports the
* following basic types:
*
* int
* float
* bool
* string
* null
* callable
* regex
* wild
* AnyClassOrInterfaceName
*
* It supports the following complex types:
*
* list<type>
* map<type, type>
* type|type
*
* A type may be marked as optional by suffixing it with "?" or prefixing it
* with the word "optional":
*
* int?
* optional int
*
* A type may have a human-readable comment in parentheses, at the end:
*
* int (must be even)
*
* For example, these are valid type specifications:
*
* int|string
* map<int, bool>
* list<list<wild>>
* optional int
* string (uppercase)
*
*/
final class PhutilTypeSpec extends Phobject {
private $type;
private $subtypes = array();
private $optional;
private $comment;
private function __construct() {}
public function getType() {
return $this->type;
}
public function check($value, $name = null) {
switch ($this->type) {
case 'int':
if (!is_int($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'float':
if (!is_float($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'bool':
if (!is_bool($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'string':
if (!is_string($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'regex':
+ if (!is_string($value)) {
+ throw new PhutilTypeCheckException($this, $value, $name);
+ }
+
$trap = new PhutilErrorTrap();
$ok = @preg_match($value, '');
$err = $trap->getErrorsAsString();
$trap->destroy();
if ($ok === false) {
throw new PhutilTypeCheckException($this, $value, $name, $err);
}
break;
case 'null':
if (!is_null($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'list':
if (!is_array($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
if ($value && !phutil_is_natural_list($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
try {
foreach ($value as $v) {
$this->subtypes[0]->check($v);
}
} catch (PhutilTypeCheckException $ex) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'map':
if (!is_array($value)) {
throw new PhutilTypeCheckException($this, $value, $name);
}
try {
foreach ($value as $k => $v) {
$this->subtypes[0]->check($k);
$this->subtypes[1]->check($v);
}
} catch (PhutilTypeCheckException $ex) {
throw new PhutilTypeCheckException($this, $value, $name);
}
break;
case 'or':
foreach ($this->subtypes as $subtype) {
try {
$subtype->check($value);
return;
} catch (PhutilTypeCheckException $ex) {
// Ignore.
}
}
throw new PhutilTypeCheckException($this, $value, $name);
case 'wild':
return;
default:
if (class_exists($this->type, false)) {
if ($value instanceof $this->type) {
return;
}
} else if (interface_exists($this->type, false)) {
if ($value instanceof $this->type) {
return;
}
}
throw new PhutilTypeCheckException($this, $value, $name);
}
}
public static function checkMap(array $values, array $types) {
$extra = array_diff_key($values, $types);
if ($extra) {
throw new PhutilTypeExtraParametersException($extra);
}
$missing = array();
foreach ($types as $key => $type) {
$types[$key] = self::newFromString($type);
if (!array_key_exists($key, $values)) {
if (!$types[$key]->optional) {
$missing[] = $key;
}
}
}
if ($missing) {
throw new PhutilTypeMissingParametersException($missing);
}
foreach ($types as $key => $type) {
if (array_key_exists($key, $values)) {
$type->check($values[$key], $key);
}
}
}
public static function getCommonParentClass($class_a, $class_b) {
// Make sure both classes are really classes.
try {
if (!class_exists($class_a) || !class_exists($class_b)) {
return null;
}
} catch (PhutilMissingSymbolException $ex) {
return null;
}
$ancestors_a = array();
do {
$ancestors_a[] = $class_a;
} while ($class_a = get_parent_class($class_a));
$ancestors_b = array();
do {
$ancestors_b[] = $class_b;
} while ($class_b = get_parent_class($class_b));
return head(array_intersect($ancestors_a, $ancestors_b));
}
public static function getTypeOf($value) {
if (is_int($value)) {
return 'int';
} else if (is_float($value)) {
return 'float';
} else if (is_bool($value)) {
return 'bool';
} else if (is_string($value)) {
return 'string';
} else if (is_null($value)) {
return 'null';
} else if (is_object($value)) {
return get_class($value);
} else if (is_array($value)) {
$vtype = self::getTypeOfVector($value);
if ($value && phutil_is_natural_list($value)) {
return 'list<'.$vtype.'>';
} else {
$ktype = self::getTypeOfVector(array_keys($value));
return "map<{$ktype}, {$vtype}>";
}
} else {
return 'wild';
}
}
private static function getTypeOfVector(array $vector) {
if (!$vector) {
return 'wild';
}
$type = null;
foreach ($vector as $value) {
$vtype = self::getTypeOf($value);
if ($type === null) {
$type = $vtype;
} else if ($type === $vtype) {
continue;
} else {
$parent = self::getCommonParentClass($type, $vtype);
if ($parent) {
$type = $parent;
} else {
return 'wild';
}
}
}
return $type;
}
public function toString() {
$sub = array();
foreach ($this->subtypes as $subtype) {
$sub[] = $subtype->toString();
}
switch ($this->type) {
case 'map':
$string = 'map<'.$sub[0].', '.$sub[1].'>';
break;
case 'list':
$string = 'list<'.$sub[0].'>';
break;
case 'or':
$string = implode('|', $sub);
break;
default:
$string = $this->type;
break;
}
if ($this->optional) {
$string = 'optional '.$string;
}
if ($this->comment) {
$string .= ' ('.$this->comment.')';
}
return $string;
}
public static function newFromString($string) {
$lexer = self::getLexer();
$tokens = $lexer->getTokens($string);
// Strip whitespace tokens.
foreach ($tokens as $key => $token) {
$type = $token[0];
if ($type == ' ') {
unset($tokens[$key]);
}
}
$tokens = array_values($tokens);
$callback = array(__CLASS__, 'didReduceTokens');
return self::parseTokens($tokens, $callback);
}
public static function didReduceTokens($rule, $production, array $tokens) {
switch ($rule) {
case 'start':
case 'some_type':
case 'not_or_type':
return $tokens[0];
case 'type':
if ($production == 'yes') {
$tokens[0]->optional = true;
}
return $tokens[0];
case 'basic_type':
$obj = new PhutilTypeSpec();
$obj->type = $tokens[0][1];
return $obj;
case 'or_type':
$l = $tokens[0];
$r = $tokens[2];
if ($l->type == 'or') {
if ($r->type == 'or') {
foreach ($r->subtypes as $subtype) {
$l->subtypes[] = $subtype;
}
} else {
$l->subtypes[] = $r;
}
return $l;
} else if ($r->type == 'or') {
$r->subtypes[] = $l;
return $r;
} else {
$obj = new PhutilTypeSpec();
$obj->type = 'or';
$obj->subtypes[] = $l;
$obj->subtypes[] = $r;
return $obj;
}
break;
case 'map_type':
$obj = new PhutilTypeSpec();
$obj->type = 'map';
$obj->subtypes[] = $tokens[2];
$obj->subtypes[] = $tokens[4];
return $obj;
case 'list_type':
$obj = new PhutilTypeSpec();
$obj->type = 'list';
$obj->subtypes[] = $tokens[2];
return $obj;
case 'maybe_optional':
if ($production == 'yes') {
$tokens[1]->optional = true;
return $tokens[1];
} else {
return $tokens[0];
}
break;
case 'maybe_comment':
if ($production == 'yes') {
$tokens[0]->comment = $tokens[1];
}
return $tokens[0];
case 'comment':
return $tokens[1];
case 'comment_text':
$result = '';
foreach ($tokens as $token) {
if (is_array($token)) {
$result .= $token[1];
} else {
$result .= $token;
}
}
return $result;
default:
throw new Exception(pht("Unhandled parser rule '%s'!", $rule));
}
}
private static function getLexer() {
static $lexer;
if (!$lexer) {
$lexer = new PhutilTypeLexer();
}
return $lexer;
}
private static function parseTokens(array $tokens, $callback) {
// NOTE: This is automatically generated by the script
// `support/parser/generate-type-parser.php`.
return PhutilParserGenerator::parseTokensWithTables(
array(
0 => array(
'opt' => array(
0 => 'S',
1 => 3,
),
'k' => array(
0 => 'S',
1 => 20,
),
'map' => array(
0 => 'S',
1 => 21,
),
'list' => array(
0 => 'S',
1 => 71,
),
),
1 => array(
'(end-of-file)' => array(
0 => 'A',
),
),
2 => array(
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'start',
1 => 0,
2 => 1,
),
),
),
3 => array(
'k' => array(
0 => 'S',
1 => 20,
),
'map' => array(
0 => 'S',
1 => 21,
),
'list' => array(
0 => 'S',
1 => 71,
),
),
4 => array(
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'maybe_optional',
1 => 'yes',
2 => 2,
),
),
),
5 => array(
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'maybe_comment',
1 => 'no',
2 => 1,
),
),
'(' => array(
0 => 'S',
1 => 7,
),
),
6 => array(
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'maybe_comment',
1 => 'yes',
2 => 2,
),
),
),
7 => array(
'cm' => array(
0 => 'S',
1 => 11,
),
),
8 => array(
')' => array(
0 => 'S',
1 => 9,
),
'cm' => array(
0 => 'S',
1 => 10,
),
),
9 => array(
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'comment',
1 => 0,
2 => 3,
),
),
),
10 => array(
')' => array(
0 => 'R',
1 => array(
0 => 'comment_text',
1 => 0,
2 => 2,
),
),
'cm' => array(
0 => 'R',
1 => array(
0 => 'comment_text',
1 => 0,
2 => 2,
),
),
),
11 => array(
')' => array(
0 => 'R',
1 => array(
0 => 'comment_text',
1 => 1,
2 => 1,
),
),
'cm' => array(
0 => 'R',
1 => array(
0 => 'comment_text',
1 => 1,
2 => 1,
),
),
),
12 => array(
'(' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'no',
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'no',
2 => 1,
),
),
'?' => array(
0 => 'S',
1 => 13,
),
),
13 => array(
'(' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'yes',
2 => 2,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'yes',
2 => 2,
),
),
),
14 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 0,
2 => 1,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 0,
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'S',
1 => 15,
),
),
15 => array(
'k' => array(
0 => 'S',
1 => 20,
),
'map' => array(
0 => 'S',
1 => 21,
),
'list' => array(
0 => 'S',
1 => 71,
),
),
16 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
),
17 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
),
18 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
),
19 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
),
20 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
),
21 => array(
'<' => array(
0 => 'S',
1 => 22,
),
),
22 => array(
'k' => array(
0 => 'S',
1 => 57,
),
'map' => array(
0 => 'S',
1 => 58,
),
'list' => array(
0 => 'S',
1 => 67,
),
),
23 => array(
',' => array(
0 => 'S',
1 => 24,
),
),
24 => array(
'k' => array(
0 => 'S',
1 => 35,
),
'map' => array(
0 => 'S',
1 => 36,
),
'list' => array(
0 => 'S',
1 => 45,
),
),
25 => array(
'>' => array(
0 => 'S',
1 => 26,
),
),
26 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
'(' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
'(end-of-file)' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
),
27 => array(
'>' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'no',
2 => 1,
),
),
'?' => array(
0 => 'S',
1 => 28,
),
),
28 => array(
'>' => array(
0 => 'R',
1 => array(
0 => 'type',
1 => 'yes',
2 => 2,
),
),
),
29 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 0,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'S',
1 => 30,
),
),
30 => array(
'k' => array(
0 => 'S',
1 => 35,
),
'map' => array(
0 => 'S',
1 => 36,
),
'list' => array(
0 => 'S',
1 => 45,
),
),
31 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 0,
2 => 3,
),
),
),
32 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 0,
2 => 1,
),
),
),
33 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 1,
2 => 1,
),
),
),
34 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'not_or_type',
1 => 2,
2 => 1,
),
),
),
35 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'basic_type',
1 => 0,
2 => 1,
),
),
),
36 => array(
'<' => array(
0 => 'S',
1 => 37,
),
),
37 => array(
'k' => array(
0 => 'S',
1 => 57,
),
'map' => array(
0 => 'S',
1 => 58,
),
'list' => array(
0 => 'S',
1 => 67,
),
),
38 => array(
',' => array(
0 => 'S',
1 => 39,
),
),
39 => array(
'k' => array(
0 => 'S',
1 => 35,
),
'map' => array(
0 => 'S',
1 => 36,
),
'list' => array(
0 => 'S',
1 => 45,
),
),
40 => array(
'>' => array(
0 => 'S',
1 => 41,
),
),
41 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'map_type',
1 => 0,
2 => 6,
),
),
),
42 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 1,
2 => 1,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'some_type',
1 => 1,
2 => 1,
),
),
'|' => array(
0 => 'S',
1 => 43,
),
),
43 => array(
'k' => array(
0 => 'S',
1 => 35,
),
'map' => array(
0 => 'S',
1 => 36,
),
'list' => array(
0 => 'S',
1 => 45,
),
),
44 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 1,
2 => 3,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 1,
2 => 3,
),
),
'|' => array(
0 => 'R',
1 => array(
0 => 'or_type',
1 => 1,
2 => 3,
),
),
),
45 => array(
'<' => array(
0 => 'S',
1 => 46,
),
),
46 => array(
'k' => array(
0 => 'S',
1 => 35,
),
'map' => array(
0 => 'S',
1 => 36,
),
'list' => array(
0 => 'S',
1 => 45,
),
),
47 => array(
'>' => array(
0 => 'S',
1 => 48,
),
),
48 => array(
'?' => array(
0 => 'R',
1 => array(
0 => 'list_type',
1 => 0,
2 => 4,
),
),
'>' => array(
0 => 'R',
1 => array(
0 => 'list_type',
1 => 0,
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'(end-of-file)',
$tokens,
$callback);
}
}

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Content licensed under Creative Commons Attribution-ShareAlike 4.0 (CC-BY-SA) unless otherwise noted; code licensed under Apache 2.0 or other open source licenses. · CC BY-SA 4.0 · Apache 2.0