54 lines
1.7 KiB
Rust
54 lines
1.7 KiB
Rust
use dust_lang::*;
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#[test]
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fn r#while() {
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let source = "let mut x = 0; while x < 5 { x = x + 1 } x";
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assert_eq!(
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compile(source),
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Ok(Chunk::with_data(
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None,
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FunctionType {
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type_parameters: None,
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value_parameters: None,
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return_type: Box::new(Type::Integer),
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},
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vec![
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(
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Instruction::load_constant(Destination::Register(0), 0, false),
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Span(12, 13)
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),
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(Instruction::define_local(0, 0, true), Span(8, 9)),
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(
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Instruction::less(true, Argument::Local(0), Argument::Constant(2)),
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Span(23, 24)
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),
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(Instruction::jump(2, true), Span(41, 42)),
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(
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Instruction::add(
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Destination::Local(0),
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Argument::Local(0),
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Argument::Constant(3)
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),
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Span(35, 36)
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),
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(Instruction::jump(3, false), Span(41, 42)),
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(
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Instruction::get_local(Destination::Register(1), 0),
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Span(41, 42)
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),
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(Instruction::r#return(true), Span(42, 42)),
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],
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vec![
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ConcreteValue::Integer(0),
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ConcreteValue::string("x"),
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ConcreteValue::Integer(5),
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ConcreteValue::Integer(1),
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],
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vec![Local::new(1, Type::Integer, true, Scope::default())]
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)),
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(5))));
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}
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