| Conditions | 10 |
| Paths | 17 |
| Total Lines | 62 |
| Code Lines | 33 |
| Lines | 0 |
| Ratio | 0 % |
| Tests | 21 |
| CRAP Score | 14.8069 |
| Changes | 6 | ||
| Bugs | 1 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 130 | 1 | private function processGeneratorContainer(GeneratorContainer $gc, Deferred $deferred = null) |
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| 131 | 1 | { |
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| 132 | // If generator has no more yields... |
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| 133 | 1 | if (!$gc->valid()) { |
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| 134 | // If exception has been thrown in generator, we have to propagate it as rejected value |
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| 135 | 1 | if ($gc->thrown()) { |
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| 136 | $deferred->reject($gc->getReturnOrThrown()); |
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| 137 | return; |
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| 138 | } |
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| 139 | // Now we normalize returned value |
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| 140 | try { |
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| 141 | 1 | $returned = Utils::normalize($gc->getReturnOrThrown(), $gc->getOptions()); |
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| 142 | 1 | $yieldables = Utils::getYieldables($returned); |
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| 143 | // If normalized value contains yieldables, we have to chain resolver |
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| 144 | 1 | if ($yieldables) { |
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| 145 | $this->promiseAll($yieldables, true)->then( |
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| 146 | self::getApplier($returned, $yieldables, [$deferred, 'resolve']), |
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| 147 | [$deferred, 'reject'] |
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| 148 | ); |
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| 149 | return; |
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| 150 | } |
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| 151 | // Propagate normalized returned value |
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| 152 | 1 | $deferred && $deferred->resolve($returned); |
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| 153 | } catch (\RuntimeException $e) { |
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| 154 | // Propagate exception thrown in normalization |
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| 155 | $deferred && $deferred->reject($e); |
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| 156 | } |
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| 157 | 1 | return; |
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| 158 | } |
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| 159 | |||
| 160 | // Now we normalize yielded value |
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| 161 | try { |
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| 162 | 1 | $yielded = Utils::normalize($gc->current(), $gc->getOptions(), $gc->key()); |
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| 163 | } catch (\RuntimeException $e) { |
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| 164 | // If exception thrown in normalization... |
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| 165 | // - If generator accepts exception, we throw it into generator |
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| 166 | // - If generator does not accept exception, we assume it as non-exception value |
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| 167 | $gc->throwAcceptable() ? $gc->throw_($e) : $gc->send($e); |
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| 168 | // Continue |
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| 169 | $this->processGeneratorContainer($gc, $deferred); |
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| 170 | return; |
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| 171 | } |
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| 172 | |||
| 173 | // Search yieldables from yielded value |
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| 174 | 1 | $yieldables = Utils::getYieldables($yielded); |
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| 175 | 1 | if (!$yieldables) { |
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| 176 | // If there are no yieldables, send yielded value back into generator |
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| 177 | 1 | $gc->send($yielded); |
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| 178 | // Continue |
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| 179 | 1 | $this->processGeneratorContainer($gc, $deferred); |
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| 180 | 1 | return; |
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| 181 | } |
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| 182 | |||
| 183 | // Chain resolver |
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| 184 | 1 | $this->promiseAll($yieldables, $gc->throwAcceptable())->then( |
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| 185 | 1 | self::getApplier($yielded, $yieldables, [$gc, 'send']), |
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| 186 | 1 | [$gc, 'throw_'] |
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| 187 | )->always(function () use ($gc, $deferred) { |
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| 188 | // Continue |
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| 189 | 1 | $this->processGeneratorContainer($gc, $deferred); |
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| 190 | 1 | }); |
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| 191 | 1 | } |
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| 192 | |||
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: