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<?php |
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namespace LesserPhp\Library; |
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use LesserPhp\Exception\GeneralException; |
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/** |
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* lesserphp |
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* https://www.maswaba.de/lesserphp |
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* |
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* LESS CSS compiler, adapted from http://lesscss.org |
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* |
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* Copyright 2013, Leaf Corcoran <[email protected]> |
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* Copyright 2016, Marcus Schwarz <[email protected]> |
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* Licensed under MIT or GPLv3, see LICENSE |
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* @package LesserPhp |
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*/ |
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class Assertions |
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{ |
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private $coerce; |
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64 |
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public function __construct(Coerce $coerce) |
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{ |
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64 |
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$this->coerce = $coerce; |
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64 |
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} |
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public function assertColor($value, $error = "expected color value") |
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{ |
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$color = $this->coerce->coerceColor($value); |
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if ($color === null) { |
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throw new GeneralException($error); |
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} |
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return $color; |
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} |
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public function assertNumber($value, $error = "expecting number") |
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{ |
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if ($value[0] === "number") { |
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return $value[1]; |
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} |
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throw new GeneralException($error); |
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} |
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public function assertArgs($value, $expectedArgs, $name = "") |
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{ |
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if ($expectedArgs == 1) { |
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return $value; |
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} else { |
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if ($value[0] !== "list" || $value[1] !== ",") { |
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throw new GeneralException('expecting list'); |
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} |
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$values = $value[2]; |
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$numValues = count($values); |
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if ($expectedArgs != $numValues) { |
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if ($name) { |
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$name .= ": "; |
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} |
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throw new GeneralException("${name}expecting $expectedArgs arguments, got $numValues"); |
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} |
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return $values; |
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} |
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} |
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public function assertMinArgs($value, $expectedMinArgs, $name = "") |
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{ |
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if ($value[0] !== "list" || $value[1] !== ",") { |
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throw new GeneralException("expecting list"); |
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} |
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$values = $value[2]; |
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$numValues = count($values); |
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if ($expectedMinArgs > $numValues) { |
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if ($name) { |
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$name .= ": "; |
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} |
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throw new GeneralException("${name}expecting at least $expectedMinArgs arguments, got $numValues"); |
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} |
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return $values; |
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} |
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} |
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