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Design changes for pattern index/range (#2446)

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Andy Gocke 2019-04-17 00:46:15 -07:00 committed by GitHub
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proposals/index-range-changes.md
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@ -298,3 +298,12 @@ would not apply to any nested expressions.
## Design Meetings
- https://github.com/dotnet/csharplang/blob/master/meetings/2019/LDM-2019-04-01.md
## Decisions made during implementation
- All members in the pattern must be instance members
- If a Length method is found but it has the wrong return type, continue looking for Count
- The indexer used for the Index pattern must have exactly one int parameter
- The Slice method used for the Range pattern must have exactly two int parameters
- When looking for the pattern members, we look for original definitions, not constructed members