1 | <?php |
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2 | /* |
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3 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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4 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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5 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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6 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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7 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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8 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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9 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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10 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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11 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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12 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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13 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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14 | * |
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15 | * This software consists of voluntary contributions made by many individuals |
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16 | * and is licensed under the MIT license. For more information, see |
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17 | * <http://www.doctrine-project.org>. |
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18 | */ |
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19 | |||
20 | namespace Doctrine\ORM\Query\AST; |
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21 | |||
22 | /** |
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23 | * Abstract class of an AST node. |
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24 | * |
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25 | * @link www.doctrine-project.org |
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26 | * @since 2.0 |
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27 | * @author Guilherme Blanco <[email protected]> |
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28 | * @author Jonathan Wage <[email protected]> |
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29 | * @author Roman Borschel <[email protected]> |
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30 | */ |
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31 | abstract class Node |
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32 | { |
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33 | /** |
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34 | * Double-dispatch method, supposed to dispatch back to the walker. |
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35 | * |
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36 | * Implementation is not mandatory for all nodes. |
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37 | * |
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38 | * @param \Doctrine\ORM\Query\SqlWalker $walker |
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39 | * |
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40 | * @return string |
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41 | * |
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42 | * @throws ASTException |
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43 | */ |
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44 | public function dispatch($walker) |
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45 | { |
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46 | throw ASTException::noDispatchForNode($this); |
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47 | } |
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48 | |||
49 | /** |
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50 | * Dumps the AST Node into a string representation for information purpose only. |
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51 | * |
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52 | * @return string |
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53 | */ |
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54 | 3 | public function __toString() |
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55 | { |
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56 | 3 | return $this->dump($this); |
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57 | } |
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58 | |||
59 | /** |
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60 | * @param object $obj |
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61 | * |
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62 | * @return string |
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63 | */ |
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64 | 3 | public function dump($obj) |
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65 | { |
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66 | 3 | static $ident = 0; |
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67 | |||
68 | 3 | $str = ''; |
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69 | |||
70 | 3 | if ($obj instanceof Node) { |
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71 | 3 | $str .= get_class($obj) . '(' . PHP_EOL; |
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72 | 3 | $props = get_object_vars($obj); |
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73 | |||
74 | 3 | foreach ($props as $name => $prop) { |
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75 | 3 | $ident += 4; |
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76 | 3 | $str .= str_repeat(' ', $ident) . '"' . $name . '": ' |
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77 | 3 | . $this->dump($prop) . ',' . PHP_EOL; |
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78 | 3 | $ident -= 4; |
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79 | } |
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80 | |||
81 | 3 | $str .= str_repeat(' ', $ident) . ')'; |
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82 | 3 | } else if (is_array($obj)) { |
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83 | $ident += 4; |
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84 | $str .= 'array('; |
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85 | $some = false; |
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86 | |||
87 | foreach ($obj as $k => $v) { |
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88 | $str .= PHP_EOL . str_repeat(' ', $ident) . '"' |
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89 | . $k . '" => ' . $this->dump($v) . ','; |
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90 | $some = true; |
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91 | } |
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92 | |||
93 | $ident -= 4; |
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94 | $str .= ($some ? PHP_EOL . str_repeat(' ', $ident) : '') . ')'; |
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95 | 3 | } else if (is_object($obj)) { |
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96 | $str .= 'instanceof(' . get_class($obj) . ')'; |
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97 | } else { |
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98 | 3 | $str .= var_export($obj, true); |
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99 | } |
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100 | |||
101 | 3 | return $str; |
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102 | } |
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103 | } |
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104 |