98 lines
2.5 KiB
Rust
98 lines
2.5 KiB
Rust
use dust_lang::*;
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#[test]
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fn constant() {
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let source = "42";
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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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Type::Integer,
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Span(0, 2)
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),
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(Instruction::r#return(true), Type::None, Span(2, 2))
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],
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vec![ConcreteValue::Integer(42)],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(42))));
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}
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#[test]
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fn empty() {
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let source = "";
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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::None)
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},
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vec![(Instruction::r#return(false), Type::None, Span(0, 0))],
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vec![],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(None));
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}
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#[test]
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fn parentheses_precedence() {
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let source = "(1 + 2) * 3";
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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::add(
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Destination::Register(0),
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Argument::Constant(0),
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Argument::Constant(1)
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),
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Type::Integer,
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Span(3, 4)
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),
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(
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Instruction::multiply(
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Destination::Register(1),
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Argument::Register(0),
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Argument::Constant(2)
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),
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Type::Integer,
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Span(8, 9)
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),
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(Instruction::r#return(true), Type::None, Span(11, 11)),
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],
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vec![
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ConcreteValue::Integer(1),
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ConcreteValue::Integer(2),
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ConcreteValue::Integer(3)
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],
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vec![]
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))
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);
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assert_eq!(run(source), Ok(Some(ConcreteValue::Integer(9))));
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}
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