Track the start of a signature more accurately (#6760)

This change ensures that a function signature always starts with an
`IdentifierNameMaybeBeforeSignature` node (renamed from
`IdentifierNameBeforeParams`), even in the case of function declarations
like `fn F -> T` that have no parameter list. As a consequence, this
ensures that we push new entries onto `pattern_block_stack` and
`full_pattern_stack` when we start processing the function signature.
This commit is contained in:
Geoff Romer
2026-02-23 22:46:03 +00:00
committed by GitHub
parent 375a736c42
commit 4a0cf6c1fb
282 changed files with 1041 additions and 1039 deletions
+4 -4
View File
@@ -19,14 +19,14 @@ fn F() -> i32 {
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'FunctionIntroducer', text: 'fn'},
// CHECK:STDOUT: {kind: 'IdentifierNameBeforeParams', text: 'F'},
// CHECK:STDOUT: {kind: 'IdentifierNameMaybeBeforeSignature', text: 'F'},
// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
// CHECK:STDOUT: {kind: 'ReturnType', text: '->', subtree_size: 2},
// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 7},
// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'n'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'n'},
// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
@@ -34,7 +34,7 @@ fn F() -> i32 {
// CHECK:STDOUT: {kind: 'IntLiteral', text: '0'},
// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 8},
// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'p'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'p'},
// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
// CHECK:STDOUT: {kind: 'PostfixOperatorStar', text: '*', subtree_size: 2},
// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 4},
@@ -44,7 +44,7 @@ fn F() -> i32 {
// CHECK:STDOUT: {kind: 'PrefixOperatorAmp', text: '&', subtree_size: 2},
// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 10},
// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'q'},
// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'q'},
// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
// CHECK:STDOUT: {kind: 'PostfixOperatorStar', text: '*', subtree_size: 2},
// CHECK:STDOUT: {kind: 'PostfixOperatorStar', text: '*', subtree_size: 3},