1818
1919class Mapping
2020{
21- private const FUNCTION_PREFIX = 'fn ' ;
22- private const VARIABLE_PREFIX = 'v ' ;
23- private const CLASS_PREFIX = 'C ' ;
24- private const METHOD_PREFIX = 'm ' ;
21+ private const string PREFIX_FUNCTION = 'fn ' ;
22+ private const string PREFIX_VARIABLE = 'v ' ;
23+ private const string PREFIX_CLASS = 'C ' ;
24+ private const string PREFIX_METHOD = 'm ' ;
2525
2626 /** @var array<string, MappingEntry> */
2727 private array $ invertedFunctionMapping = [];
@@ -107,7 +107,7 @@ public function addFunction(string $name): string
107107
108108 $ stableName = $ unaliasedName ;
109109 } else {
110- $ stableName = self ::FUNCTION_PREFIX . count ($ this ->invertedFunctionMapping );
110+ $ stableName = self ::PREFIX_FUNCTION . count ($ this ->invertedFunctionMapping );
111111 }
112112
113113 $ this ->invertedFunctionMapping [$ lcName ] = $ entry = new MappingEntry ($ stableName );
@@ -122,7 +122,7 @@ public function addVariable(string $name): string
122122 {
123123 $ entry = $ this ->invertedVariableMapping [$ name ] ?? null ;
124124 if ($ entry === null ) {
125- $ stableName = self ::VARIABLE_PREFIX . count ($ this ->invertedVariableMapping );
125+ $ stableName = self ::PREFIX_VARIABLE . count ($ this ->invertedVariableMapping );
126126 $ this ->invertedVariableMapping [$ name ] = $ entry = new MappingEntry ($ stableName );
127127 $ entry ->addValue ($ name );
128128 }
@@ -135,7 +135,7 @@ public function addClass(string $name): string
135135 // TRANSFORM: Class names are case-insensitive in PHP
136136 $ lcName = strtolower ($ name );
137137 $ entry = $ this ->invertedClassMapping [$ lcName ]
138- ??= new MappingEntry (self ::CLASS_PREFIX . count ($ this ->invertedClassMapping ));
138+ ??= new MappingEntry (self ::PREFIX_CLASS . count ($ this ->invertedClassMapping ));
139139 $ entry ->addValue ($ name );
140140
141141 return $ entry ->getStableName ();
@@ -146,7 +146,7 @@ public function addMethod(string $name): string
146146 // TRANSFORM: Method names are case-insensitive in PHP
147147 $ lcName = strtolower ($ name );
148148 $ entry = $ this ->invertedMethodMapping [$ lcName ]
149- ??= new MappingEntry (self ::METHOD_PREFIX . count ($ this ->invertedMethodMapping ));
149+ ??= new MappingEntry (self ::PREFIX_METHOD . count ($ this ->invertedMethodMapping ));
150150 $ entry ->addValue ($ name );
151151
152152 return $ entry ->getStableName ();
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