36 lines
1.0 KiB
Rust
36 lines
1.0 KiB
Rust
use dust_lang::*;
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#[test]
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fn subtract_assign() {
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let source = "let mut x = 42; x -= 2; 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: Type::Integer,
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},
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vec![
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(Instruction::load_constant(0, 0, false), Span(12, 14)),
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(
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Instruction::subtract(0, Argument::Register(0), Argument::Constant(2)),
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Span(18, 20)
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),
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(Instruction::get_local(1, 0), Span(24, 25)),
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(Instruction::r#return(true), Span(25, 25)),
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],
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vec![
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ConcreteValue::Integer(42),
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ConcreteValue::string("x"),
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ConcreteValue::Integer(2)
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],
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vec![Local::new(1, 0, true, Scope::default())]
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)),
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(40))));
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}
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