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Merge pull request #6727 from leviongit/lims/ovld

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Yukihiro "Matz" Matsumoto
2026-03-05 08:49:54 +09:00
committed by GitHub
parent 736ec46ba0 87f88a1ce8
commit 64263ebcea
2 changed files with 7 additions and 6 deletions
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doc/guides/language.md
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@@ -371,15 +371,15 @@ Fibers cannot cross C function boundaries. You cannot yield from a
fiber inside a C-implemented method. Only `mrb_fiber_yield` at
function return is supported.
### Array Subclasses
### Array and String Subclasses
`Array` does not support instance variables to reduce memory. This
means subclassing `Array` and adding `@fields` will raise an error.
`Array` and `String` do not support instance variables to reduce memory.
This means subclassing `Array` or `String` and adding `@fields` will raise an error.
### Operator Overriding
Operators cannot be overridden by user code. Redefining `+` on
`String` has no effect on the behavior of the `+` operator.
Operators of primitive classes cannot be overridden by user code.
Redefining `String#+` has no effect on the behavior of the `+` __operator__.
### Module Loading Hooks
doc/limitations.md
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@@ -111,7 +111,8 @@ Syntax error
## Operator modification
An operator can't be overwritten by the user.
Operators on some of the primitive classes cannot be overridden, as they are
optimized in the VM.
```ruby
class String