/
FullyQualifiedStrictTypesFixer.php
229 lines (190 loc) · 7.15 KB
/
FullyQualifiedStrictTypesFixer.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
<?php
declare(strict_types=1);
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace PhpCsFixer\Fixer\Import;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Analyzer\Analysis\TypeAnalysis;
use PhpCsFixer\Tokenizer\Analyzer\FunctionsAnalyzer;
use PhpCsFixer\Tokenizer\Analyzer\NamespacesAnalyzer;
use PhpCsFixer\Tokenizer\Analyzer\NamespaceUsesAnalyzer;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @author VeeWee <toonverwerft@gmail.com>
*/
final class FullyQualifiedStrictTypesFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function getDefinition(): FixerDefinitionInterface
{
return new FixerDefinition(
'Transforms imported FQCN parameters and return types in function arguments to short version.',
[
new CodeSample(
'<?php
use Foo\Bar;
class SomeClass
{
public function doSomething(\Foo\Bar $foo)
{
}
}
'
),
new CodeSample(
'<?php
use Foo\Bar;
use Foo\Bar\Baz;
class SomeClass
{
public function doSomething(\Foo\Bar $foo): \Foo\Bar\Baz
{
}
}
'
),
]
);
}
/**
* {@inheritdoc}
*
* Must run before NoSuperfluousPhpdocTagsFixer.
* Must run after PhpdocToReturnTypeFixer.
*/
public function getPriority(): int
{
return 7;
}
/**
* {@inheritdoc}
*/
public function isCandidate(Tokens $tokens): bool
{
return $tokens->isTokenKindFound(T_FUNCTION);
}
/**
* {@inheritdoc}
*/
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
$namespacesAnalyzer = new NamespacesAnalyzer();
$namespaceUsesAnalyzer = new NamespaceUsesAnalyzer();
$functionsAnalyzer = new FunctionsAnalyzer();
foreach ($namespacesAnalyzer->getDeclarations($tokens) as $namespace) {
$namespaceName = strtolower($namespace->getFullName());
$uses = [];
foreach ($namespaceUsesAnalyzer->getDeclarationsInNamespace($tokens, $namespace) as $use) {
$uses[strtolower(ltrim($use->getFullName(), '\\'))] = $use->getShortName();
}
for ($index = $namespace->getScopeStartIndex(); $index < $namespace->getScopeEndIndex(); ++$index) {
if ($tokens[$index]->isGivenKind(T_FUNCTION)) {
$this->fixFunction($functionsAnalyzer, $tokens, $index, $uses, $namespaceName);
}
}
}
}
/**
* @param array<string, string> $uses
*/
private function fixFunction(FunctionsAnalyzer $functionsAnalyzer, Tokens $tokens, int $index, array $uses, string $namespaceName): void
{
$arguments = $functionsAnalyzer->getFunctionArguments($tokens, $index);
foreach ($arguments as $argument) {
if ($argument->hasTypeAnalysis()) {
$this->replaceByShortType($tokens, $argument->getTypeAnalysis(), $uses, $namespaceName);
}
}
$returnTypeAnalysis = $functionsAnalyzer->getFunctionReturnType($tokens, $index);
if (null !== $returnTypeAnalysis) {
$this->replaceByShortType($tokens, $returnTypeAnalysis, $uses, $namespaceName);
}
}
/**
* @param array<string, string> $uses
*/
private function replaceByShortType(Tokens $tokens, TypeAnalysis $type, array $uses, string $namespaceName): void
{
if ($type->isReservedType()) {
return;
}
$typeStartIndex = $type->getStartIndex();
if ($tokens[$typeStartIndex]->isGivenKind(CT::T_NULLABLE_TYPE)) {
$typeStartIndex = $tokens->getNextMeaningfulToken($typeStartIndex);
}
$namespaceNameLength = \strlen($namespaceName);
$types = $this->getTypes($tokens, $typeStartIndex, $type->getEndIndex());
foreach ($types as $typeName => [$startIndex, $endIndex]) {
if (!str_starts_with($typeName, '\\')) {
continue; // no shorter type possible
}
$typeName = substr($typeName, 1);
$typeNameLower = strtolower($typeName);
if (isset($uses[$typeNameLower])) {
// if the type without leading "\" equals any of the full "uses" long names, it can be replaced with the short one
$tokens->overrideRange($startIndex, $endIndex, $this->namespacedStringToTokens($uses[$typeNameLower]));
} elseif ('' === $namespaceName) {
// if we are in the global namespace and the type is not imported the leading '\' can be removed (TODO nice config candidate)
foreach ($uses as $useShortName) {
if (strtolower($useShortName) === $typeNameLower) {
continue 2;
}
}
$tokens->overrideRange($startIndex, $endIndex, $this->namespacedStringToTokens($typeName));
} elseif ($typeNameLower !== $namespaceName && str_starts_with($typeNameLower, $namespaceName)) {
// if the type starts with namespace and the type is not the same as the namespace it can be shortened
$typeNameShort = substr($typeName, $namespaceNameLength + 1);
$tokens->overrideRange($startIndex, $endIndex, $this->namespacedStringToTokens($typeNameShort));
}
}
}
private function getTypes(Tokens $tokens, int $index, int $endIndex): iterable
{
$index = $typeStartIndex = $typeEndIndex = $tokens->getNextMeaningfulToken($index - 1);
$type = $tokens[$index]->getContent();
while (true) {
$index = $tokens->getNextMeaningfulToken($index);
if ($tokens[$index]->isGivenKind([CT::T_TYPE_ALTERNATION, CT::T_TYPE_INTERSECTION])) {
yield $type => [$typeStartIndex, $typeEndIndex];
$index = $typeStartIndex = $typeEndIndex = $tokens->getNextMeaningfulToken($index);
$type = $tokens[$index]->getContent();
continue;
}
if ($index > $endIndex || !$tokens[$index]->isGivenKind([T_STRING, T_NS_SEPARATOR])) {
yield $type => [$typeStartIndex, $typeEndIndex];
break;
}
$typeEndIndex = $index;
$type .= $tokens[$index]->getContent();
}
}
/**
* @return Token[]
*/
private function namespacedStringToTokens(string $input): array
{
$tokens = [];
$parts = explode('\\', $input);
foreach ($parts as $index => $part) {
$tokens[] = new Token([T_STRING, $part]);
if ($index !== \count($parts) - 1) {
$tokens[] = new Token([T_NS_SEPARATOR, '\\']);
}
}
return $tokens;
}
}