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carbon-lang/toolchain/parse/testdata/array/fail_syntax.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/array/fail_syntax.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/array/fail_syntax.carbon
// --- fail_no_comma.carbon
// CHECK:STDERR: fail_no_comma.carbon:[[@LINE+8]]:17: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: var x: array(i32);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_comma.carbon:[[@LINE+4]]:17: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array(i32);
// CHECK:STDERR: ^
// CHECK:STDERR:
var x: array(i32);
// --- fail_invalid_char.carbon
// CHECK:STDERR: fail_invalid_char.carbon:[[@LINE+16]]:17: error: expected expression [ExpectedExpr]
// CHECK:STDERR: fn X() -> array(:);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_invalid_char.carbon:[[@LINE+12]]:17: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: fn X() -> array(:);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_invalid_char.carbon:[[@LINE+8]]:17: error: expected expression [ExpectedExpr]
// CHECK:STDERR: fn X() -> array(:);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_invalid_char.carbon:[[@LINE+4]]:17: error: unexpected tokens before `)` [ExpectedCloseSymbol]
// CHECK:STDERR: fn X() -> array(:);
// CHECK:STDERR: ^
// CHECK:STDERR:
fn X() -> array(:);
// --- fail_unlexed_expr.carbon
// CHECK:STDERR: fail_unlexed_expr.carbon:[[@LINE+12]]:14: error: encountered unrecognized characters while parsing [UnrecognizedCharacters]
// CHECK:STDERR: var y: array(`);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_unlexed_expr.carbon:[[@LINE+8]]:14: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: var y: array(`);
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_unlexed_expr.carbon:[[@LINE+4]]:14: error: unexpected tokens before `)` [ExpectedCloseSymbol]
// CHECK:STDERR: var y: array(`);
// CHECK:STDERR: ^
// CHECK:STDERR:
var y: array(`);
// --- fail_no_open_paren.carbon
// CHECK:STDERR: fail_no_open_paren.carbon:[[@LINE+4]]:14: error: expected `(` after `array` [ExpectedParenAfter]
// CHECK:STDERR: var x: array i32, 1;
// CHECK:STDERR: ^~~
// CHECK:STDERR:
var x: array i32, 1;
// --- fail_no_close_paren.carbon
// CHECK:STDERR: fail_no_close_paren.carbon:[[@LINE+16]]:13: error: opening symbol without a corresponding closing symbol [UnmatchedOpening]
// CHECK:STDERR: var x: array(i32,;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_close_paren.carbon:[[@LINE+12]]:13: error: expected `(` after `array` [ExpectedParenAfter]
// CHECK:STDERR: var x: array(i32,;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_close_paren.carbon:[[@LINE+8]]:13: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: var x: array(i32,;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_close_paren.carbon:[[@LINE+4]]:13: error: `var` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR: var x: array(i32,;
// CHECK:STDERR: ^
// CHECK:STDERR:
var x: array(i32,;
// --- fail_no_length.carbon
// CHECK:STDERR: fail_no_length.carbon:[[@LINE+4]]:18: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array(i32,);
// CHECK:STDERR: ^
// CHECK:STDERR:
var x: array(i32,);
// --- fail_no_params.carbon
// CHECK:STDERR: fail_no_params.carbon:[[@LINE+12]]:14: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array();
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_params.carbon:[[@LINE+8]]:14: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: var x: array();
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_no_params.carbon:[[@LINE+4]]:14: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array();
// CHECK:STDERR: ^
// CHECK:STDERR:
var x: array();
// --- fail_keyword_alone.carbon
// CHECK:STDERR: fail_keyword_alone.carbon:[[@LINE+16]]:13: error: expected `(` after `array` [ExpectedParenAfter]
// CHECK:STDERR: var x: array;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_keyword_alone.carbon:[[@LINE+12]]:13: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_keyword_alone.carbon:[[@LINE+8]]:13: error: expected `,` in `array(Type, Count)` [ExpectedArrayComma]
// CHECK:STDERR: var x: array;
// CHECK:STDERR: ^
// CHECK:STDERR:
// CHECK:STDERR: fail_keyword_alone.carbon:[[@LINE+4]]:13: error: expected expression [ExpectedExpr]
// CHECK:STDERR: var x: array;
// CHECK:STDERR: ^
// CHECK:STDERR:
var x: array;
// CHECK:STDOUT: - filename: fail_no_comma.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen '('
// CHECK:STDOUT: │ │ │ ├─IntTypeLiteral 'i32'
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma ')' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse ')' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr ')' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_invalid_char.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─FunctionIntroducer 'fn'
// CHECK:STDOUT: │ ├─IdentifierNameMaybeBeforeSignature 'X'
// CHECK:STDOUT: │ │ ╭─ExplicitParamListStart '('
// CHECK:STDOUT: │ ├─ExplicitParamList ')'
// CHECK:STDOUT: │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ ├─ArrayExprOpenParen '('
// CHECK:STDOUT: │ │ ├─InvalidParse ':' has_error
// CHECK:STDOUT: │ │ ├─ArrayExprComma ':' has_error
// CHECK:STDOUT: │ │ ├─InvalidParse ':' has_error
// CHECK:STDOUT: │ │ ╭─ArrayExpr ')' has_error
// CHECK:STDOUT: │ ├─ReturnType '->'
// CHECK:STDOUT: ├─FunctionDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_unlexed_expr.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'y'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen '('
// CHECK:STDOUT: │ │ │ ├─InvalidParse '`' has_error
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma '`' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse '`' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr ')' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_no_open_paren.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen 'array' has_error
// CHECK:STDOUT: │ │ │ ├─IntTypeLiteral 'i32'
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma ','
// CHECK:STDOUT: │ │ │ ├─IntLiteral '1'
// CHECK:STDOUT: │ │ ├─ArrayExpr 'array' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_no_close_paren.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen 'array' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse '(' has_error
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma '(' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse '(' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr 'array' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_no_length.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen '('
// CHECK:STDOUT: │ │ │ ├─IntTypeLiteral 'i32'
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma ','
// CHECK:STDOUT: │ │ │ ├─InvalidParse ')' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr ')' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_no_params.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen '('
// CHECK:STDOUT: │ │ │ ├─InvalidParse ')' has_error
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma ')' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse ')' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr ')' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_keyword_alone.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
// CHECK:STDOUT: │ │ ╭─IdentifierNameNotBeforeSignature 'x'
// CHECK:STDOUT: │ │ ├─BindingPatternTypeStart ':'
// CHECK:STDOUT: │ │ │ ╭─ArrayExprKeyword 'array'
// CHECK:STDOUT: │ │ │ ├─ArrayExprOpenParen 'array' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse ';' has_error
// CHECK:STDOUT: │ │ │ ├─ArrayExprComma ';' has_error
// CHECK:STDOUT: │ │ │ ├─InvalidParse ';' has_error
// CHECK:STDOUT: │ │ ├─ArrayExpr 'array' has_error
// CHECK:STDOUT: │ │ ╭─VarBindingPattern ':'
// CHECK:STDOUT: │ ├─VariablePattern 'var'
// CHECK:STDOUT: ├─VariableDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
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