Files
carbon-lang/toolchain/parse/testdata/generics/interface/default_fn.carbon
T
Geoff Romer 6429c1655c Make the tree structure more explicit in parse dumps (#7591)
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`.
2026-07-31 16:44:18 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/generics/interface/default_fn.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/generics/interface/default_fn.carbon
interface Foo {
fn Scale(self, s: i32) -> Self;
// Default definition of `Invert` calls `Scale`.
default fn Invert(self) -> Self {
return self.Scale(-1);
}
}
// CHECK:STDOUT: - filename: default_fn.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─InterfaceIntroducer 'interface'
// CHECK:STDOUT: │ ├─IdentifierNameNotBeforeSignature 'Foo'
// CHECK:STDOUT: │ ╭─InterfaceDefinitionStart '{'
// CHECK:STDOUT: │ │ ╭─FunctionIntroducer 'fn'
// CHECK:STDOUT: │ │ ├─IdentifierNameMaybeBeforeSignature 'Scale'
// CHECK:STDOUT: │ │ │ ╭─ExplicitParamListStart '('
// CHECK:STDOUT: │ │ │ │ ╭─SelfValueName 'self'
// CHECK:STDOUT: │ │ │ ├─SelfBindingPattern 'self'
// CHECK:STDOUT: │ │ │ ├─PatternListComma ','
// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
// CHECK:STDOUT: │ │ │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ │ ├─IntTypeLiteral 'i32'
// CHECK:STDOUT: │ │ │ ├─LetBindingPattern ':'
// CHECK:STDOUT: │ │ ├─ExplicitParamList ')'
// CHECK:STDOUT: │ │ │ ╭─SelfTypeNameExpr 'Self'
// CHECK:STDOUT: │ │ ├─ReturnType '->'
// CHECK:STDOUT: │ ├─FunctionDecl ';'
// CHECK:STDOUT: │ │ ╭─FunctionIntroducer 'fn'
// CHECK:STDOUT: │ │ ├─DefaultModifier 'default'
// CHECK:STDOUT: │ │ ├─IdentifierNameMaybeBeforeSignature 'Invert'
// CHECK:STDOUT: │ │ │ ╭─ExplicitParamListStart '('
// CHECK:STDOUT: │ │ │ │ ╭─SelfValueName 'self'
// CHECK:STDOUT: │ │ │ ├─SelfBindingPattern 'self'
// CHECK:STDOUT: │ │ ├─ExplicitParamList ')'
// CHECK:STDOUT: │ │ │ ╭─SelfTypeNameExpr 'Self'
// CHECK:STDOUT: │ │ ├─ReturnType '->'
// CHECK:STDOUT: │ │ ╭─FunctionDefinitionStart '{'
// CHECK:STDOUT: │ │ │ ╭─ReturnStatementStart 'return'
// CHECK:STDOUT: │ │ │ │ ╭─SelfValueNameExpr 'self'
// CHECK:STDOUT: │ │ │ │ ├─IdentifierNameNotBeforeSignature 'Scale'
// CHECK:STDOUT: │ │ │ │ ╭─MemberAccessExpr '.'
// CHECK:STDOUT: │ │ │ │ ╭─CallExprStart '('
// CHECK:STDOUT: │ │ │ │ │ ╭─IntLiteral '1'
// CHECK:STDOUT: │ │ │ │ ├─PrefixOperatorMinus '-'
// CHECK:STDOUT: │ │ │ ├─CallExpr ')'
// CHECK:STDOUT: │ │ ├─ReturnStatement ';'
// CHECK:STDOUT: │ ├─FunctionDefinition '}'
// CHECK:STDOUT: ├─InterfaceDefinition '}'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)