| 1 | <?php |
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| 12 | abstract class AbstractPass |
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| 13 | { |
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| 14 | /** |
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| 15 | * @var TokenStream Token stream of the source being processed |
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| 16 | */ |
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| 17 | protected $stream; |
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| 18 | |||
| 19 | /** |
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| 20 | * Optimize a given list of tokens |
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| 21 | * |
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| 22 | * @param TokenStream $stream |
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| 23 | * @return void |
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| 24 | */ |
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| 25 | public function optimize(TokenStream $stream) |
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| 30 | |||
| 31 | /** |
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| 32 | * Optimize the stored token stream |
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| 33 | * |
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| 34 | * @return void |
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| 35 | */ |
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| 36 | abstract protected function optimizeStream(); |
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| 37 | } |