mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 18:31:08 +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`.
100 lines
4.1 KiB
Plaintext
100 lines
4.1 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/observe/observe.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/observe/observe.carbon
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// --- base.carbon
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observe A == B == C;
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// --- impls.carbon
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observe T impls I;
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// --- equal_equal_impls.carbon
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observe T == U impls I;
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observe A == B == C == D impls I;
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// --- statement.carbon
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fn F() {
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observe A == B;
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}
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interface I {
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observe A == B;
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}
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// CHECK:STDOUT: - filename: base.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ ╭─IdentifierNameExpr 'A'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'B'
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// CHECK:STDOUT: │ │ ╭─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'C'
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// CHECK:STDOUT: │ ├─ObserveEqualEqual '=='
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// CHECK:STDOUT: ├─ObserveDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: impls.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ ╭─IdentifierNameExpr 'T'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'I'
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// CHECK:STDOUT: │ ├─ObserveImpls 'impls'
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// CHECK:STDOUT: ├─ObserveDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: equal_equal_impls.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ ╭─IdentifierNameExpr 'T'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'U'
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// CHECK:STDOUT: │ │ ╭─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'I'
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// CHECK:STDOUT: │ ├─ObserveImpls 'impls'
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// CHECK:STDOUT: ├─ObserveDecl ';'
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// CHECK:STDOUT: │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ ╭─IdentifierNameExpr 'A'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'B'
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// CHECK:STDOUT: │ │ ╭─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'C'
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// CHECK:STDOUT: │ │ ╭─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'D'
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// CHECK:STDOUT: │ │ ╭─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'I'
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// CHECK:STDOUT: │ ├─ObserveImpls 'impls'
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// CHECK:STDOUT: ├─ObserveDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: statement.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'F'
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// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: │ ╭─FunctionDefinitionStart '{'
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// CHECK:STDOUT: │ │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'A'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameExpr 'B'
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// CHECK:STDOUT: │ │ ├─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ ├─ObserveDecl ';'
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// CHECK:STDOUT: ├─FunctionDefinition '}'
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// CHECK:STDOUT: │ ╭─InterfaceIntroducer 'interface'
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// CHECK:STDOUT: │ ├─IdentifierNameNotBeforeSignature 'I'
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// CHECK:STDOUT: │ ╭─InterfaceDefinitionStart '{'
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// CHECK:STDOUT: │ │ ╭─ObserveIntroducer 'observe'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'A'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameExpr 'B'
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// CHECK:STDOUT: │ │ ├─ObserveEqualEqual '=='
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// CHECK:STDOUT: │ ├─ObserveDecl ';'
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// CHECK:STDOUT: ├─InterfaceDefinition '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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