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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/choice/fail_missing_definition_parameterized.carbon
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+2 -2
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@@ -19,11 +19,11 @@ choice MissingDefinition(T:! type);
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'ChoiceIntroducer', text: 'choice'},
// CHECK:STDOUT: {kind: 'IdentifierNameBeforeParams', text: 'MissingDefinition'},
// CHECK:STDOUT: {kind: 'TuplePatternStart', text: '('},
// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'T'},
// CHECK:STDOUT: {kind: 'TypeTypeLiteral', text: 'type'},
// CHECK:STDOUT: {kind: 'CompileTimeBindingPattern', text: ':!', subtree_size: 3},
// CHECK:STDOUT: {kind: 'TuplePattern', text: ')', subtree_size: 5},
// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 5},
// CHECK:STDOUT: {kind: 'ChoiceDefinitionStart', text: ';', has_error: yes, subtree_size: 8},
// CHECK:STDOUT: {kind: 'ChoiceDefinition', text: ';', has_error: yes, subtree_size: 9},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},