mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-25 18:00:10 +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`.
130 lines
5.5 KiB
Plaintext
130 lines
5.5 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/function/extern.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/function/extern.carbon
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// --- extern.carbon
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extern fn G();
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// --- library.carbon
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extern library "foo" fn G();
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// --- default_library.carbon
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extern library default fn G();
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// --- fail_name_missing.carbon
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// CHECK:STDERR: fail_name_missing.carbon:[[@LINE+4]]:16: error: expected `default` or a string literal to specify the library name [ExpectedLibraryNameOrDefault]
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// CHECK:STDERR: extern library fn G();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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extern library fn G();
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// --- fail_identifier.carbon
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// CHECK:STDERR: fail_identifier.carbon:[[@LINE+8]]:16: error: expected `default` or a string literal to specify the library name [ExpectedLibraryNameOrDefault]
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// CHECK:STDERR: extern library foo fn G();
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_identifier.carbon:[[@LINE+4]]:16: error: unrecognized declaration introducer [UnrecognizedDecl]
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// CHECK:STDERR: extern library foo fn G();
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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extern library foo fn G();
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// --- extern_def.carbon
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extern fn G() {}
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// --- library_def.carbon
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extern library "foo" fn G() {}
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// CHECK:STDOUT: - filename: extern.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ ├─ExternModifier 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: ├─FunctionDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: library.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ ╭─LibraryName '"foo"'
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// CHECK:STDOUT: │ │ ╭─LibrarySpecifier 'library'
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// CHECK:STDOUT: │ ├─ExternModifierWithLibrary 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: ├─FunctionDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: default_library.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ ╭─DefaultLibrary 'default'
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// CHECK:STDOUT: │ │ ╭─LibrarySpecifier 'library'
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// CHECK:STDOUT: │ ├─ExternModifierWithLibrary 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: ├─FunctionDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: fail_name_missing.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ ╭─LibraryName 'fn' has_error
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// CHECK:STDOUT: │ │ ╭─LibrarySpecifier 'library'
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// CHECK:STDOUT: │ ├─ExternModifierWithLibrary 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
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// CHECK:STDOUT: │ ├─ExplicitParamList ')'
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// CHECK:STDOUT: ├─FunctionDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: fail_identifier.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─InvalidParseStart 'foo' has_error
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// CHECK:STDOUT: │ │ ╭─LibraryName 'foo' has_error
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// CHECK:STDOUT: │ │ ╭─LibrarySpecifier 'library'
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// CHECK:STDOUT: │ ├─ExternModifierWithLibrary 'extern'
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// CHECK:STDOUT: ├─InvalidParseSubtree ';' has_error
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: extern_def.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ ├─ExternModifier 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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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: ├─FunctionDefinition '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: library_def.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
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// CHECK:STDOUT: │ │ ╭─LibraryName '"foo"'
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// CHECK:STDOUT: │ │ ╭─LibrarySpecifier 'library'
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// CHECK:STDOUT: │ ├─ExternModifierWithLibrary 'extern'
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// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'G'
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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: ├─FunctionDefinition '}'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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