mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 22:02:37 +01:00
Geoff Romer
4a0cf6c1fb
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.
91 lines
5.4 KiB
Plaintext
91 lines
5.4 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/operators/ref.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/operators/ref.carbon
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// --- ref_precedence.carbon
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var x: i32 = ref y as i32;
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// --- fail_if_ref.carbon
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// CHECK:STDERR: fail_if_ref.carbon:[[@LINE+4]]:18: error: parentheses are required around this unary `if` operator [UnaryOperatorRequiresParentheses]
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// CHECK:STDERR: var x: i32 = ref if b then c else d;
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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var x: i32 = ref if b then c else d;
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var x: i32 = ref (if b then c else d);
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var x: i32 = if b then ref c else ref d;
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// CHECK:STDOUT: - filename: ref_precedence.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'y'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'InfixOperatorAs', text: 'as', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'PrefixOperatorRef', text: 'ref', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 11},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: fail_if_ref.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'IfExprIf', text: 'if', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'c'},
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// CHECK:STDOUT: {kind: 'IfExprThen', text: 'then', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'd'},
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// CHECK:STDOUT: {kind: 'IfExprElse', text: 'else', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'PrefixOperatorRef', text: 'ref', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 14},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'ParenExprStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'IfExprIf', text: 'if', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'c'},
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// CHECK:STDOUT: {kind: 'IfExprThen', text: 'then', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'd'},
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// CHECK:STDOUT: {kind: 'IfExprElse', text: 'else', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'ParenExpr', text: ')', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'PrefixOperatorRef', text: 'ref', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 16},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'IfExprIf', text: 'if', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'c'},
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// CHECK:STDOUT: {kind: 'PrefixOperatorRef', text: 'ref', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IfExprThen', text: 'then', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'd'},
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// CHECK:STDOUT: {kind: 'PrefixOperatorRef', text: 'ref', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IfExprElse', text: 'else', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 15},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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