mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-04 22:02:52 +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`.
82 lines
4.2 KiB
Plaintext
82 lines
4.2 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/precedence_assign.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/precedence_assign.carbon
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fn F(c: bool) {
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var a: i32;
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var b: i32;
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var p: i32*;
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*p = if c then 1 else 2;
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// This is valid to _parse_ even though rejected semantically.
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(if c then a else b) += if c then 1 else 2;
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}
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// CHECK:STDOUT: - filename: precedence_assign.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: │ │ │ ╭─IdentifierNameNotBeforeSignature 'c'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ ├─BoolTypeLiteral 'bool'
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// CHECK:STDOUT: │ │ ├─LetBindingPattern ':'
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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 'a'
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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: │ ├─VariableDecl ';'
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// CHECK:STDOUT: │ │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'b'
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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: │ ├─VariableDecl ';'
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// CHECK:STDOUT: │ │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'p'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ╭─IntTypeLiteral 'i32'
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// CHECK:STDOUT: │ │ │ ├─PostfixOperatorStar '*'
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// CHECK:STDOUT: │ │ │ ╭─VarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─VariablePattern 'var'
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// CHECK:STDOUT: │ ├─VariableDecl ';'
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// CHECK:STDOUT: │ │ ╭─IdentifierNameExpr 'p'
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// CHECK:STDOUT: │ │ ╭─PrefixOperatorStar '*'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ │ ╭─IntLiteral '1'
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// CHECK:STDOUT: │ │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '2'
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// CHECK:STDOUT: │ │ ├─IfExprElse 'else'
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// CHECK:STDOUT: │ │ ╭─InfixOperatorEqual '='
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// CHECK:STDOUT: │ ├─ExprStatement ';'
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// CHECK:STDOUT: │ │ ╭─ParenExprStart '('
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameExpr 'a'
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// CHECK:STDOUT: │ │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ │ ├─IdentifierNameExpr 'b'
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// CHECK:STDOUT: │ │ ├─IfExprElse 'else'
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// CHECK:STDOUT: │ │ ╭─ParenExpr ')'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameExpr 'c'
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// CHECK:STDOUT: │ │ │ ╭─IfExprIf 'if'
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// CHECK:STDOUT: │ │ │ │ ╭─IntLiteral '1'
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// CHECK:STDOUT: │ │ │ ├─IfExprThen 'then'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '2'
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// CHECK:STDOUT: │ │ ├─IfExprElse 'else'
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// CHECK:STDOUT: │ │ ╭─InfixOperatorPlusEqual '+='
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// CHECK:STDOUT: │ ├─ExprStatement ';'
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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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