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| rfc:noreturn_type [2021/03/31 13:47] – Make naming section more honest mattbrown | rfc:noreturn_type [2021/04/05 17:37] – levim |
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| ===== Introduction ===== | ===== Introduction ===== |
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| There has been a trend over the past few years that concepts initially just expressed in PHP docblocks eventually become native PHP types. | There has been a trend over the past few years that concepts initially just expressed in PHP docblocks eventually become native PHP types. Past examples are: [[https://wiki.php.net/rfc/scalar_type_hints_v5|scalar typehints]], [[https://wiki.php.net/rfc/return_types|return types]], [[https://wiki.php.net/rfc/union_types_v2|union types]], [[https://wiki.php.net/rfc/mixed_type_v2|mixed types]], and [[https://wiki.php.net/rfc/static_return_type|static types]]. |
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| Past examples are: [[https://wiki.php.net/rfc/scalar_type_hints_v5|scalar typehints]], [[https://wiki.php.net/rfc/return_types|return types]], [[https://wiki.php.net/rfc/union_types_v2|union types]], [[https://wiki.php.net/rfc/mixed_type_v2|mixed types]], and [[https://wiki.php.net/rfc/static_return_type|static types]]. | |
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| Our static analysis tools currently provide support for '' @return noreturn '' docblocks to denote functions that always ''throw'' or ''exit''. Users of these tools have found that syntax useful to describe the behaviour of their own code, but we think it’s even more useful as a native return type, where PHP compile-time and runtime type-checks can guarantee its behaviour. | Our static analysis tools currently provide support for '' @return noreturn '' docblocks to denote functions that always ''throw'' or ''exit''. Users of these tools have found that syntax useful to describe the behaviour of their own code, but we think it’s even more useful as a native return type, where PHP compile-time and runtime type-checks can guarantee its behaviour. |