mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 22:02:37 +01:00
Geoff Romer
6429c1655c
It's hard to track 2-space indent levels across large vertical gaps, and it can be hard to suppress the instinct to read the dump as if it were preorder. This change introduces a new dump mode that addresses both problems by using box-drawing characters to explicitly represent the parent-child edges of the tree. This new mode is the default, but the old behavior remains available with `--parse-dump-format=yaml-postorder`.
128 lines
5.9 KiB
Plaintext
128 lines
5.9 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/generics/impl/match_first.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/generics/impl/match_first.carbon
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// --- empty.carbon
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match_first {}
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// --- fail_missing_braces.carbon
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// CHECK:STDERR: fail_missing_braces.carbon:[[@LINE+4]]:12: error: expected `{` after `match_first` [ExpectedCurlyBraceAfter]
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// CHECK:STDERR: match_first;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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match_first;
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// --- fail_eof.carbon
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match_first
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// CHECK:STDERR: fail_eof.carbon:[[@LINE+4]]:1: error: expected `{` after `match_first` [ExpectedCurlyBraceAfter]
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// CHECK:STDERR:
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// --- with_impls.carbon
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match_first {
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impl forall [T: I] T as Interface {
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fn Add(self, b: Self) -> Self;
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}
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impl forall [T: J] T as Interface {
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fn Add(self, b: Self) -> Self;
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}
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}
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// CHECK:STDOUT: - filename: empty.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─MatchFirstIntroducer 'match_first'
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// CHECK:STDOUT: │ ╭─MatchFirstDefinitionStart '{'
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// CHECK:STDOUT: ├─MatchFirst '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: fail_missing_braces.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─MatchFirstIntroducer 'match_first'
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// CHECK:STDOUT: │ ╭─MatchFirstDefinitionStart 'match_first' has_error
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// CHECK:STDOUT: ├─MatchFirst 'match_first' has_error
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// CHECK:STDOUT: ├─EmptyDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: fail_eof.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─MatchFirstIntroducer 'match_first'
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// CHECK:STDOUT: │ ╭─MatchFirstDefinitionStart 'match_first' has_error
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// CHECK:STDOUT: ├─MatchFirst 'match_first' has_error
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: with_impls.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─MatchFirstIntroducer 'match_first'
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// CHECK:STDOUT: │ ╭─MatchFirstDefinitionStart '{'
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// CHECK:STDOUT: │ │ ╭─ImplIntroducer 'impl'
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// CHECK:STDOUT: │ │ ├─Forall 'forall'
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// CHECK:STDOUT: │ │ │ ╭─ImplicitParamListStart '['
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 'T'
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// CHECK:STDOUT: │ │ │ │ ├─CompileTimeBindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ├─IdentifierNameExpr 'I'
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// CHECK:STDOUT: │ │ │ ├─CompileTimeBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─ImplicitParamList ']'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'T'
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// CHECK:STDOUT: │ │ ├─ImplTypeAs 'as'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'Interface'
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// CHECK:STDOUT: │ │ ╭─ImplDefinitionStart '{'
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// CHECK:STDOUT: │ │ │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameMaybeBeforeSignature 'Add'
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// CHECK:STDOUT: │ │ │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ │ │ │ │ ╭─SelfValueName 'self'
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// CHECK:STDOUT: │ │ │ │ ├─SelfBindingPattern 'self'
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// CHECK:STDOUT: │ │ │ │ ├─PatternListComma ','
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// CHECK:STDOUT: │ │ │ │ │ ╭─IdentifierNameNotBeforeSignature 'b'
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// CHECK:STDOUT: │ │ │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ │ ├─SelfTypeNameExpr 'Self'
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// CHECK:STDOUT: │ │ │ │ ├─LetBindingPattern ':'
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// CHECK:STDOUT: │ │ │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: │ │ │ │ ╭─SelfTypeNameExpr 'Self'
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// CHECK:STDOUT: │ │ │ ├─ReturnType '->'
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// CHECK:STDOUT: │ │ ├─FunctionDecl ';'
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// CHECK:STDOUT: │ ├─ImplDefinition '}'
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// CHECK:STDOUT: │ │ ╭─ImplIntroducer 'impl'
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// CHECK:STDOUT: │ │ ├─Forall 'forall'
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// CHECK:STDOUT: │ │ │ ╭─ImplicitParamListStart '['
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 'T'
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// CHECK:STDOUT: │ │ │ │ ├─CompileTimeBindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ├─IdentifierNameExpr 'J'
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// CHECK:STDOUT: │ │ │ ├─CompileTimeBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─ImplicitParamList ']'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'T'
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// CHECK:STDOUT: │ │ ├─ImplTypeAs 'as'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'Interface'
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// CHECK:STDOUT: │ │ ╭─ImplDefinitionStart '{'
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// CHECK:STDOUT: │ │ │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameMaybeBeforeSignature 'Add'
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// CHECK:STDOUT: │ │ │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ │ │ │ │ ╭─SelfValueName 'self'
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// CHECK:STDOUT: │ │ │ │ ├─SelfBindingPattern 'self'
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// CHECK:STDOUT: │ │ │ │ ├─PatternListComma ','
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// CHECK:STDOUT: │ │ │ │ │ ╭─IdentifierNameNotBeforeSignature 'b'
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// CHECK:STDOUT: │ │ │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ │ ├─SelfTypeNameExpr 'Self'
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// CHECK:STDOUT: │ │ │ │ ├─LetBindingPattern ':'
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// CHECK:STDOUT: │ │ │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: │ │ │ │ ╭─SelfTypeNameExpr 'Self'
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// CHECK:STDOUT: │ │ │ ├─ReturnType '->'
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// CHECK:STDOUT: │ │ ├─FunctionDecl ';'
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// CHECK:STDOUT: │ ├─ImplDefinition '}'
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// CHECK:STDOUT: ├─MatchFirst '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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