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Grammar rule *parameter_modifier* disallows valid V7 constructs #1209

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Grammar rule *parameter_modifier* disallows valid V7 constructs #1209

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9b57f62
fix grammar and add constraint
RexJaeschke Nov 17, 2024
9dff369
allow both modifier orders
RexJaeschke May 29, 2025
75a3f90
add punctuation
RexJaeschke May 29, 2025
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3 changes: 2 additions & 1 deletion standard/classes.md
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Expand Up @@ -2130,7 +2130,7 @@ default_argument

parameter_modifier
: parameter_mode_modifier
| 'this'
| 'this' parameter_mode_modifier?
;

parameter_mode_modifier
Expand Down Expand Up @@ -3056,6 +3056,7 @@ When the first parameter of a method includes the `this` modifier, that method i

- It may only be an input parameter if it has a value type
- It may only be a reference parameter if it has a value type or has a generic type constrained to struct
- It shall not be an output parameter.
- It shall not be a pointer type.

> *Example*: The following is an example of a static class that declares two extension methods:
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