753ad5e1d5
At parse time we don't know if a[i] is an index expression or a type (or function) instantiation. Because instantiations accept a list of type arguments, and argument lists permit a trailing comma, a[i,] is either an instantiation or index expression. Document that a trailing comma is permitted in the syntax for index expressions. For comparison, the same problem arises with conversions which cannot be distinguished from function calls at parse time. The spec also permits a trailing comma for conversions T(x,). The grammar adjustment is the same (see line 5239). Fixes #55007. Change-Id: Ib9101efe52031589eb95a428cc6dff940d939f9e Reviewed-on: https://go-review.googlesource.com/c/go/+/452618 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Robert Griesemer <gri@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Robert Griesemer <gri@google.com> Auto-Submit: Robert Griesemer <gri@google.com> |
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SECURITY.md |
The Go Programming Language
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