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dust/dust-lang/tests/logic.rs

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2.9 KiB
Rust
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use dust_lang::*;
#[test]
fn and() {
let source = "true && false";
assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
None,
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FunctionType {
type_parameters: None,
value_parameters: None,
return_type: Box::new(Type::Boolean),
},
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vec![
(Instruction::load_boolean(0, true, false), Span(0, 4)),
(Instruction::test(Argument::Register(0), true), Span(5, 7)),
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(Instruction::jump(1, true), Span(5, 7)),
(Instruction::load_boolean(1, false, false), Span(8, 13)),
(Instruction::r#return(true), Span(13, 13)),
],
vec![],
vec![]
))
);
assert_eq!(run(source), Ok(Some(ConcreteValue::Boolean(false))));
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}
#[test]
fn or() {
let source = "true || false";
assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
None,
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FunctionType {
type_parameters: None,
value_parameters: None,
return_type: Box::new(Type::Boolean),
},
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vec![
(Instruction::load_boolean(0, true, false), Span(0, 4)),
(Instruction::test(Argument::Register(0), false), Span(5, 7)),
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(Instruction::jump(1, true), Span(5, 7)),
(Instruction::load_boolean(1, false, false), Span(8, 13)),
(Instruction::r#return(true), Span(13, 13)),
],
vec![],
vec![]
))
);
assert_eq!(run(source), Ok(Some(ConcreteValue::Boolean(true))));
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}
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#[test]
fn variable_and() {
let source = "let a = true; let b = false; a && b";
assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
None,
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FunctionType {
type_parameters: None,
value_parameters: None,
return_type: Box::new(Type::Boolean),
},
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vec![
(Instruction::load_boolean(0, true, false), Span(8, 12)),
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(Instruction::define_local(0, 0, false), Span(4, 5)),
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(Instruction::load_boolean(1, false, false), Span(22, 27)),
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(Instruction::define_local(1, 1, false), Span(18, 19)),
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(Instruction::get_local(2, 0), Span(29, 30)),
(Instruction::test(Argument::Register(2), true), Span(31, 33)),
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(Instruction::jump(1, true), Span(31, 33)),
(Instruction::get_local(3, 1), Span(34, 35)),
(Instruction::r#return(true), Span(35, 35)),
],
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vec![ConcreteValue::string("a"), ConcreteValue::string("b"),],
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vec![
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Local::new(0, Type::Boolean, false, Scope::default()),
Local::new(1, Type::Boolean, false, Scope::default()),
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]
))
);
assert_eq!(run(source), Ok(Some(ConcreteValue::Boolean(false))));
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}