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Support tuple patterns outside parameter lists (#4923)

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Parameter lists need substantially different treatment than tuple
patterns in other contexts, so this change splits them into separate
parse node kinds.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
Geoff Romer
2025-02-20 03:17:45 +00:00
committed by GitHub
co-authored by Jon Ross-Perkins
parent 35f5a7f115
commit 74e1a9949f
201 changed files with 1680 additions and 860 deletions
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toolchain/parse/testdata/function/declaration/implicit_empty.carbon
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+2 -2
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@@ -17,8 +17,8 @@ fn foo[]();
// CHECK:STDOUT: {kind: 'IdentifierNameBeforeParams', text: 'foo'},
// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 2},
// CHECK:STDOUT: {kind: 'TuplePatternStart', text: '('},
// CHECK:STDOUT: {kind: 'TuplePattern', text: ')', subtree_size: 2},
// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
// CHECK:STDOUT: {kind: 'FunctionDecl', text: ';', subtree_size: 7},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]