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mini spec: Label scopes, Blank identifier #2019

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Nov 20, 2024
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mini spec: Label scopes, Blank identifier #2019

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9 changes: 9 additions & 0 deletions doc/spec-mini.md
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Expand Up @@ -1764,6 +1764,15 @@ The [package clause]() is not a declaration; the package name does not appear in

### Label scopes

Labels are declared by [labeled statements](#labeled-statements) and are used in the "[break](#break-statements)", "[continue](#continue-statements)", and "[goto](#goto-statements)" statements. It is illegal to define a label that is never used. In contrast to other identifiers, labels are not block scoped and do not conflict with identifiers that are not labels. The scope of a label is the body of the function in which it is declared and excludes the body of any nested function.


### Blank identifier

The _blank identifier_ is represented by the underscore character `_`. It serves as an anonymous placeholder instead of a regular (non-blank) identifier and has special meaning in [declarations](#declarations-and-scope), as an [operand](), and in [assignment statements](#assignment-statements).

### Predeclared identifiers

TODO


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