mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-25 14:20:19 +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`.
43 lines
2.1 KiB
Plaintext
43 lines
2.1 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/if_expr/fail_then_expr_missing.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/if_expr/fail_then_expr_missing.carbon
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fn F() {
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// CHECK:STDERR: fail_then_expr_missing.carbon:[[@LINE+4]]:28: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: var n: i32 = if true then;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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var n: i32 = if true then;
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}
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// CHECK:STDOUT: - filename: fail_then_expr_missing.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: │ │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'n'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ ├─IntTypeLiteral 'i32'
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// CHECK:STDOUT: │ │ │ ╭─VarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─VariablePattern 'var'
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// CHECK:STDOUT: │ │ ├─VariableInitializer '='
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// CHECK:STDOUT: │ │ │ ╭─BoolLiteralTrue 'true'
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// CHECK:STDOUT: │ │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ │ ╭─InvalidParse ';' has_error
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// CHECK:STDOUT: │ │ │ ├─IfExprThen 'then' has_error
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// CHECK:STDOUT: │ │ │ ├─InvalidParse ';' has_error
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// CHECK:STDOUT: │ │ ├─IfExprElse 'if' has_error
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// CHECK:STDOUT: │ ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FunctionDefinition '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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