Clarify that the macro_rules! pat behaviour depends on the macro definition's edition

mattheww · mattheww · commit 94a041ff3680 · 2022-01-11T22:12:44.000Z
diff --git a/src/macros-by-example.md b/src/macros-by-example.md
@@ -143,6 +143,8 @@ transcribed more than once or not at all.
 > **Edition Differences**: Starting with the 2021 edition, `pat` fragment-specifiers match top-level or-patterns (that is, they accept [_Pattern_]).
 >
 > Before the 2021 edition, they match exactly the same fragments as `pat_param` (that is, they accept [_PatternNoTopAlt_]).
+>
+> The relevant edition is the one in effect for the `macro_rules!` definition.
 
 ## Repetitions
 

Original file line number	Diff line number	Diff line change
`@@ -143,6 +143,8 @@ transcribed more than once or not at all.`
`143`	`143`	> Edition Differences: Starting with the 2021 edition, `pat` fragment-specifiers match top-level or-patterns (that is, they accept [_Pattern_]).
`144`	`144`	`>`
`145`	`145`	> Before the 2021 edition, they match exactly the same fragments as `pat_param` (that is, they accept [_PatternNoTopAlt_]).
	`146`	`+>`
	`147`	+> The relevant edition is the one in effect for the `macro_rules!` definition.
`146`	`148`
`147`	`149`	`## Repetitions`
`148`	`150`