// 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/operators/unary.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/operators/unary.carbon

// --- fail_space_before.carbon

fn F() {
  // CHECK:STDERR: fail_space_before.carbon:[[@LINE+4]]:16: error: whitespace is required before this unary operator [UnaryOperatorRequiresWhitespace]
  // CHECK:STDERR:   if (false) {}--0;
  // CHECK:STDERR:                ^~
  // CHECK:STDERR:
  if (false) {}--0;
}

// --- todo_fail_space_before_op_with_keyword.carbon

fn F() {
  if (false) {}--false;
}

// CHECK:STDOUT: - filename: fail_space_before.carbon
// CHECK:STDOUT:   parse_tree: [
// CHECK:STDOUT:     {kind: 'FileStart', text: ''},
// CHECK:STDOUT:         {kind: 'FunctionIntroducer', text: 'fn'},
// CHECK:STDOUT:         {kind: 'IdentifierNameMaybeBeforeSignature', text: 'F'},
// CHECK:STDOUT:           {kind: 'ExplicitParamListStart', text: '('},
// CHECK:STDOUT:         {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 5},
// CHECK:STDOUT:           {kind: 'IfConditionStart', text: '('},
// CHECK:STDOUT:           {kind: 'BoolLiteralFalse', text: 'false'},
// CHECK:STDOUT:         {kind: 'IfCondition', text: ')', subtree_size: 3},
// CHECK:STDOUT:           {kind: 'CodeBlockStart', text: '{'},
// CHECK:STDOUT:         {kind: 'CodeBlock', text: '}', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'IfStatement', text: 'if', subtree_size: 6},
// CHECK:STDOUT:           {kind: 'IntLiteral', text: '0'},
// CHECK:STDOUT:         {kind: 'PrefixOperatorMinusMinus', text: '--', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'ExprStatement', text: ';', subtree_size: 3},
// CHECK:STDOUT:     {kind: 'FunctionDefinition', text: '}', subtree_size: 15},
// CHECK:STDOUT:     {kind: 'FileEnd', text: ''},
// CHECK:STDOUT:   ]
// CHECK:STDOUT: - filename: todo_fail_space_before_op_with_keyword.carbon
// CHECK:STDOUT:   parse_tree: [
// CHECK:STDOUT:     {kind: 'FileStart', text: ''},
// CHECK:STDOUT:         {kind: 'FunctionIntroducer', text: 'fn'},
// CHECK:STDOUT:         {kind: 'IdentifierNameMaybeBeforeSignature', text: 'F'},
// CHECK:STDOUT:           {kind: 'ExplicitParamListStart', text: '('},
// CHECK:STDOUT:         {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 5},
// CHECK:STDOUT:           {kind: 'IfConditionStart', text: '('},
// CHECK:STDOUT:           {kind: 'BoolLiteralFalse', text: 'false'},
// CHECK:STDOUT:         {kind: 'IfCondition', text: ')', subtree_size: 3},
// CHECK:STDOUT:           {kind: 'CodeBlockStart', text: '{'},
// CHECK:STDOUT:         {kind: 'CodeBlock', text: '}', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'IfStatement', text: 'if', subtree_size: 6},
// CHECK:STDOUT:           {kind: 'BoolLiteralFalse', text: 'false'},
// CHECK:STDOUT:         {kind: 'PrefixOperatorMinusMinus', text: '--', subtree_size: 2},
// CHECK:STDOUT:       {kind: 'ExprStatement', text: ';', subtree_size: 3},
// CHECK:STDOUT:     {kind: 'FunctionDefinition', text: '}', subtree_size: 15},
// CHECK:STDOUT:     {kind: 'FileEnd', text: ''},
// CHECK:STDOUT:   ]
