ocelot_interpreter/
interpret_script.rs

1use crate::interpreter::Interpreter;
2use ocelot_ast::script::Script;
3use ocelot_base::result::OcelotResult;
4use ocelot_pal::pal::Pal;
5
6/// Executes a parsed script.
7pub fn interpret_script(script: &Script, pal: &dyn Pal) -> OcelotResult<()> {
8    Interpreter::new(pal).interpret_script(script)
9}
10
11#[cfg(test)]
12mod tests {
13    use super::interpret_script;
14    use ocelot_ast::expression::Expression;
15    use ocelot_ast::expression_kind::ExpressionKind;
16    use ocelot_ast::item::Item;
17    use ocelot_ast::item_kind::ItemKind;
18    use ocelot_ast::println_statement::PrintlnStatement;
19    use ocelot_ast::script::Script;
20    use ocelot_ast::statement::Statement;
21    use ocelot_ast::statement_kind::StatementKind;
22    use ocelot_ast::string_literal_expression::StringLiteralExpression;
23    use ocelot_ast::test_item::TestItem;
24    use ocelot_base::span::Span;
25    use ocelot_pal::pal_mock::PalMock;
26
27    #[test]
28    fn interprets_println_string_literal() {
29        let script = Script::new(
30            vec![Item::new(
31                ItemKind::Statement(Statement::new(
32                    StatementKind::Println(PrintlnStatement::new(Expression::new(
33                        ExpressionKind::StringLiteral(StringLiteralExpression::new("hello")),
34                        Span::new(8, 15),
35                    ))),
36                    Span::new(0, 17),
37                )),
38                Span::new(0, 17),
39            )],
40            Span::new(0, 17),
41        );
42        let pal = PalMock::new();
43
44        interpret_script(&script, &pal).unwrap();
45
46        assert_eq!(pal.take_printed_output(), "hello\n");
47    }
48
49    #[test]
50    fn ignores_test_items_during_normal_script_execution() {
51        let script = Script::new(
52            vec![
53                Item::new(
54                    ItemKind::Statement(Statement::new(
55                        StatementKind::Println(PrintlnStatement::new(Expression::new(
56                            ExpressionKind::StringLiteral(StringLiteralExpression::new("setup")),
57                            Span::new(8, 15),
58                        ))),
59                        Span::new(0, 17),
60                    )),
61                    Span::new(0, 17),
62                ),
63                Item::new(
64                    ItemKind::Test(TestItem::new(
65                        "prints hello",
66                        vec![Statement::new(
67                            StatementKind::Println(PrintlnStatement::new(Expression::new(
68                                ExpressionKind::StringLiteral(StringLiteralExpression::new(
69                                    "hello",
70                                )),
71                                Span::new(32, 39),
72                            ))),
73                            Span::new(24, 41),
74                        )],
75                        Span::new(18, 43),
76                    )),
77                    Span::new(18, 43),
78                ),
79            ],
80            Span::new(0, 43),
81        );
82        let pal = PalMock::new();
83
84        interpret_script(&script, &pal).unwrap();
85
86        assert_eq!(pal.take_printed_output(), "setup\n");
87    }
88}
ocelot_interpreter/interpret_script.rs

ocelot_interpreter/
interpret_script.rs
