Whoops, missed resetting the unexpectedState back to nil if there are additional items.

Greg Titus · Greg Titus · commit abe65361b7cb · 2024-06-02T07:05:34.000-07:00
diff --git a/Sources/SwiftParser/Expressions.swift b/Sources/SwiftParser/Expressions.swift
@@ -2380,6 +2380,8 @@ extension Parser {
             elements: [RawSyntax(caseToken)],
             arena: self.arena
           )
+        } else {
+            unexpectedPrePatternCase = nil
         }
       } while keepGoing != nil && self.hasProgressed(&loopProgress)
     }
diff --git a/Tests/SwiftParserTest/translated/SwitchTests.swift b/Tests/SwiftParserTest/translated/SwitchTests.swift
@@ -1356,7 +1356,7 @@ final class SwitchTests: ParserTestCase {
       assertParse(
         """
         switch x {
-        case 1, 1️⃣case 2:
+        case 1, 1️⃣case 2, 3:
         }
         """,
         diagnostics: [

Original file line number	Diff line number	Diff line change
`@@ -2380,6 +2380,8 @@ extension Parser {`
`2380`	`2380`	`elements: [RawSyntax(caseToken)],`
`2381`	`2381`	`arena: self.arena`
`2382`	`2382`	`)`
	`2383`	`+ } else {`
	`2384`	`+ unexpectedPrePatternCase = nil`
`2383`	`2385`	`}`
`2384`	`2386`	`} while keepGoing != nil && self.hasProgressed(&loopProgress)`
`2385`	`2387`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1356,7 +1356,7 @@ final class SwitchTests: ParserTestCase {`
`1356`	`1356`	`assertParse(`
`1357`	`1357`	`"""`
`1358`	`1358`	`switch x {`
`1359`		`- case 1, 1️⃣case 2:`
	`1359`	`+ case 1, 1️⃣case 2, 3:`
`1360`	`1360`	`}`
`1361`	`1361`	`""",`
`1362`	`1362`	`diagnostics: [`