DefinitionTree {
    definitions: [
        Namespace(
            NamespaceDefinition {
                namespace: Keyword {
                    value: "namespace",
                    position: 0,
                },
                name: Identifier {
                    position: 10,
                    value: "A\B\C\D\E",
                },
                semicolon: 19,
                definitions: [
                    Function(
                        FunctionDefinition {
                            comments: CommentGroup {
                                comments: [],
                            },
                            attributes: [],
                            function: Keyword {
                                value: "function",
                                position: 22,
                            },
                            name: Identifier {
                                position: 31,
                                value: "foo",
                            },
                            templates: None,
                            parameters: FunctionLikeParameterListDefinition {
                                comments: CommentGroup {
                                    comments: [],
                                },
                                left_parenthesis: 34,
                                parameters: CommaSeparated {
                                    inner: [
                                        FunctionLikeParameterDefinition {
                                            comments: CommentGroup {
                                                comments: [],
                                            },
                                            attributes: [],
                                            type_definition: String(
                                                Keyword {
                                                    value: "string",
                                                    position: 35,
                                                },
                                            ),
                                            ellipsis: None,
                                            variable: Variable {
                                                position: 42,
                                                name: "$s",
                                            },
                                            default: None,
                                        },
                                    ],
                                    commas: [],
                                },
                                right_parenthesis: 44,
                            },
                            return_type: FunctionLikeReturnTypeDefinition {
                                colon: 45,
                                type_definition: Identifier(
                                    TemplatedIdentifier {
                                        name: Identifier {
                                            position: 47,
                                            value: "self",
                                        },
                                        templates: None,
                                    },
                                ),
                            },
                            body: BlockStatement {
                                comments: CommentGroup {
                                    comments: [],
                                },
                                left_brace: 52,
                                statements: [
                                    Expression(
                                        ExpressionStatement {
                                            comments: CommentGroup {
                                                comments: [],
                                            },
                                            expression: ExitConstruct(
                                                ExitWith {
                                                    comments: CommentGroup {
                                                        comments: [],
                                                    },
                                                    exit: Keyword {
                                                        value: "exit",
                                                        position: 59,
                                                    },
                                                    left_parenthesis: 63,
                                                    value: Some(
                                                        Literal(
                                                            Integer(
                                                                LiteralInteger {
                                                                    comments: CommentGroup {
                                                                        comments: [],
                                                                    },
                                                                    value: "0",
                                                                    position: 64,
                                                                },
                                                            ),
                                                        ),
                                                    ),
                                                    right_parenthesis: 65,
                                                },
                                            ),
                                            semicolon: 66,
                                        },
                                    ),
                                ],
                                right_brace: 68,
                            },
                        },
                    ),
                ],
            },
        ),
    ],
    eof: 70,
}