rfc:namespaced_names_as_token

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rfc:namespaced_names_as_token [2020/06/15 15:19] – nikicrfc:namespaced_names_as_token [2020/06/15 17:05] – nikic
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 ===== Proposal ===== ===== Proposal =====
 +
 +==== Changes to namespaced names ====
  
 PHP distinguishes four kinds of namespaced names: PHP distinguishes four kinds of namespaced names:
Line 83: Line 85:
  
 <PHP> <PHP>
-// This is interpreted as T_LIST and cannot be used as an identifier:+// This is interpreted as T_LIST (i.e., as a reserved keyword):
 List List
 // All of the following are interpreted as legal namespaced names: // All of the following are interpreted as legal namespaced names:
Line 107: Line 109:
 // This would have previously been interpreted as $foo = Foo\call($bar), // This would have previously been interpreted as $foo = Foo\call($bar),
 // now it will result in a parser error. // now it will result in a parser error.
-$foo = Foo+$foo = Foo // <- Missing semicolon
 \call($bar); \call($bar);
 </PHP> </PHP>
 +
 +==== Changes to reserved keywords limitations ====
  
 In additional to the namespaced name changes, reserved keywords may now be used in a number of additional places: In additional to the namespaced name changes, reserved keywords may now be used in a number of additional places:
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 new \List; // Ok! new \List; // Ok!
 </PHP> </PHP>
 +
 +This also extends to function-like language constructs:
 +
 +<PHP>
 +function print($arg) {}
 +
 +print($arg); // This is the normal "print" language construct.
 +\print($arg) // This calls the print() function defined above.
 +</PHP>
 +
 +To avoid confusion in this particular case, it would be possible to prevent defining function symbols that clash with function-like language constructs.
  
 ===== Backward Incompatible Changes ===== ===== Backward Incompatible Changes =====
rfc/namespaced_names_as_token.txt · Last modified: 2020/07/31 12:54 by nikic

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