mirror of
https://github.com/carbon-language/carbon-lang.git
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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`.
59 lines
2.8 KiB
Plaintext
59 lines
2.8 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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// Error recovery scans across the lines a multi-line string literal spans,
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// even when the literal's lines are less indented than the erroneous construct
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// and the literal is inside a skipped bracketed group.
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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/basics/multiline_string_recovery.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/basics/multiline_string_recovery.carbon
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// --- fail_string_in_skipped_group.carbon
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fn F() {
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// The error skips past the string literal's group and the tokens after the
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// closing delimiter, ending the declaration at the `;` so that the following
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// declaration parses cleanly.
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// CHECK:STDERR: fail_string_in_skipped_group.carbon:[[@LINE+4]]:20: error: `var` declarations must end with a `;` [ExpectedDeclSemi]
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// CHECK:STDERR: var x: i32 = bad bad ('''
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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var x: i32 = bad bad ('''
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str
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''') and_more;
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var y: i32 = 0;
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}
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// CHECK:STDOUT: - filename: fail_string_in_skipped_group.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 'x'
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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: │ │ ├─IdentifierNameExpr 'bad'
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// CHECK:STDOUT: │ ├─VariableDecl ';' has_error
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// CHECK:STDOUT: │ │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'y'
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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: │ │ ├─IntLiteral '0'
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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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