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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Code\Generator\Support; |
| 16 | |
| 17 | use Pop\Code\Generator\Exception; |
| 18 | use Pop\Code\Generator\Literal; |
| 19 | |
| 20 | /** |
| 21 | * Value formatter class |
| 22 | * |
| 23 | * Turns a real PHP value into its PHP literal source form. Shared by PropertyGenerator, |
| 24 | * ConstantGenerator, and FunctionTrait's argument-default formatting so all three format values the |
| 25 | * same way instead of each carrying its own (previously divergent) copy of this logic. |
| 26 | * |
| 27 | * @category Pop |
| 28 | * @package Pop\Code |
| 29 | * @author Nick Sagona, III <dev@noladev.com> |
| 30 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 31 | * @license https://www.popphp.org/license New BSD License |
| 32 | * @version 6.0.0 |
| 33 | */ |
| 34 | class ValueFormatter |
| 35 | { |
| 36 | |
| 37 | /** |
| 38 | * Format a value as PHP literal source (no trailing semicolon) |
| 39 | * |
| 40 | * @param mixed $value |
| 41 | * @param ?string $type |
| 42 | * @param string $indent |
| 43 | * @param bool $compact render an array value on a single line instead of the default |
| 44 | * multi-line bracket-literal form -- used for attribute arguments, |
| 45 | * which always render inline (even a top-level `#[...]` is |
| 46 | * conventionally one physical line) and would otherwise force a |
| 47 | * multi-line array literal into the middle of a parameter list |
| 48 | * @return string |
| 49 | */ |
| 50 | public static function format(mixed $value, ?string $type = null, string $indent = '', bool $compact = false): string |
| 51 | { |
| 52 | if ($value === null) { |
| 53 | return 'null'; |
| 54 | } |
| 55 | |
| 56 | // A Literal wraps a raw PHP-source expression (e.g. 'self::FOO') that must be emitted |
| 57 | // verbatim rather than quoted/escaped -- must be checked before the object/Stringable |
| 58 | // check below, since Literal itself has no __toString() and would otherwise incorrectly |
| 59 | // hit that exception path. |
| 60 | if ($value instanceof Literal) { |
| 61 | return $value->getValue(); |
| 62 | } |
| 63 | |
| 64 | // Enum cases (e.g. a class constant like `const DEFAULT = self::Active;`) aren't |
| 65 | // Stringable, but they do have a well-defined literal form: <ShortClassName>::<CaseName>. |
| 66 | // Using the short name (not an FQCN) matches how the rest of this codebase renders |
| 67 | // in-namespace type references, and is always valid PHP when the value is a case of the |
| 68 | // enum being rendered, since that reference lands back in the same namespace. |
| 69 | if ($value instanceof \UnitEnum) { |
| 70 | return (new \ReflectionClass($value))->getShortName() . '::' . $value->name; |
| 71 | } |
| 72 | |
| 73 | if (is_object($value) && !method_exists($value, '__toString')) { |
| 74 | throw new Exception('Error: Cannot format an object value of type ' . get_class($value) . '.'); |
| 75 | } |
| 76 | |
| 77 | $effectiveType = $type ?? strtolower(gettype($value)); |
| 78 | |
| 79 | // A union type string (e.g. 'int|string') doesn't match any of the single-type checks |
| 80 | // below, so it fell through to the catch-all string-quoting branch regardless of the |
| 81 | // value's actual type -- silently coercing e.g. an int|string default that's really an |
| 82 | // int into a quoted string literal. Pick the union member matching the value's actual |
| 83 | // PHP type, if present, so formatting proceeds as if that were the declared type. |
| 84 | if (str_contains($effectiveType, '|')) { |
| 85 | $actualType = strtolower(gettype($value)); |
| 86 | $actualType = match ($actualType) { |
| 87 | 'integer' => 'int', |
| 88 | 'double' => 'float', |
| 89 | 'boolean' => 'bool', |
| 90 | default => $actualType, |
| 91 | }; |
| 92 | $members = explode('|', $effectiveType); |
| 93 | if (in_array($actualType, $members, true)) { |
| 94 | $effectiveType = $actualType; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | if ($effectiveType === 'array') { |
| 99 | if (count($value) === 0) { |
| 100 | return '[]'; |
| 101 | } |
| 102 | return $compact ? self::formatArrayCompact($value) : self::formatArray($value, $indent); |
| 103 | } |
| 104 | |
| 105 | if (in_array($effectiveType, ['int', 'integer', 'float', 'double'], true)) { |
| 106 | return (string) $value; |
| 107 | } |
| 108 | |
| 109 | if (in_array($effectiveType, ['bool', 'boolean'], true)) { |
| 110 | return $value ? 'true' : 'false'; |
| 111 | } |
| 112 | |
| 113 | return "'" . addcslashes((string) $value, "'\\") . "'"; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Format an array value as PHP bracket-literal source |
| 118 | * |
| 119 | * @param array $value |
| 120 | * @param string $indent |
| 121 | * @return string |
| 122 | */ |
| 123 | protected static function formatArray(array $value, string $indent): string |
| 124 | { |
| 125 | $ary = str_replace(PHP_EOL, PHP_EOL . $indent . ' ', var_export($value, true)); |
| 126 | $ary = str_replace('array (', '[', $ary); |
| 127 | $ary = str_replace(' )', ']', $ary); |
| 128 | $ary = str_replace('NULL', 'null', $ary); |
| 129 | |
| 130 | $isAssoc = array_keys($value) !== range(0, count($value) - 1); |
| 131 | |
| 132 | if (!$isAssoc) { |
| 133 | $ary = preg_replace('/^(\s*)\d+ => /m', '$1', $ary); |
| 134 | } |
| 135 | |
| 136 | return $ary; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Format a non-empty array value as a single-line PHP bracket-literal source |
| 141 | * |
| 142 | * @param array $value |
| 143 | * @return string |
| 144 | */ |
| 145 | protected static function formatArrayCompact(array $value): string |
| 146 | { |
| 147 | $keys = array_keys($value); |
| 148 | $isAssoc = false; |
| 149 | |
| 150 | for ($i = 0; $i < count($keys); $i++) { |
| 151 | if ($keys[$i] != $i) { |
| 152 | $isAssoc = true; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | $parts = []; |
| 157 | foreach ($value as $key => $item) { |
| 158 | $formattedItem = self::format($item, null, '', true); |
| 159 | $parts[] = $isAssoc ? var_export($key, true) . ' => ' . $formattedItem : $formattedItem; |
| 160 | } |
| 161 | |
| 162 | return '[' . implode(', ', $parts) . ']'; |
| 163 | } |
| 164 | |
| 165 | } |