mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 18:14:53 +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`.
93 lines
4.5 KiB
Plaintext
93 lines
4.5 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/operators/ref.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/operators/ref.carbon
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// --- ref_precedence.carbon
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var x: i32 = ref y as i32;
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// --- fail_if_ref.carbon
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// CHECK:STDERR: fail_if_ref.carbon:[[@LINE+4]]:18: error: parentheses are required around this unary `if` operator [UnaryOperatorRequiresParentheses]
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// CHECK:STDERR: var x: i32 = ref if b then c else d;
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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var x: i32 = ref if b then c else d;
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var x: i32 = ref (if b then c else d);
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var x: i32 = if b then ref c else ref d;
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// CHECK:STDOUT: - filename: ref_precedence.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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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 'y'
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// CHECK:STDOUT: │ │ ├─IntTypeLiteral 'i32'
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// CHECK:STDOUT: │ │ ╭─InfixOperatorAs 'as'
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// CHECK:STDOUT: │ ├─PrefixOperatorRef 'ref'
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// CHECK:STDOUT: ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: fail_if_ref.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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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 'b'
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// CHECK:STDOUT: │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ ├─IdentifierNameExpr 'd'
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// CHECK:STDOUT: │ │ ╭─IfExprElse 'else'
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// CHECK:STDOUT: │ ├─PrefixOperatorRef 'ref'
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// CHECK:STDOUT: ├─VariableDecl ';'
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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: │ │ ╭─ParenExprStart '('
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'b'
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// CHECK:STDOUT: │ │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameExpr 'd'
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// CHECK:STDOUT: │ │ ├─IfExprElse 'else'
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// CHECK:STDOUT: │ │ ╭─ParenExpr ')'
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// CHECK:STDOUT: │ ├─PrefixOperatorRef 'ref'
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// CHECK:STDOUT: ├─VariableDecl ';'
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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 'b'
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// CHECK:STDOUT: │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ │ ╭─PrefixOperatorRef 'ref'
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// CHECK:STDOUT: │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'd'
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// CHECK:STDOUT: │ │ ├─PrefixOperatorRef 'ref'
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// CHECK:STDOUT: │ ├─IfExprElse 'else'
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// CHECK:STDOUT: ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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