71 lines
1.6 KiB
Rust
71 lines
1.6 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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vec![
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(Instruction::load_constant(0, 0, false), Span(0, 2)),
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(Instruction::r#return(true), Span(2, 2))
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],
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vec![ValueOwned::Primitive(Primitive::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(ValueOwned::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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vec![(Instruction::r#return(false), 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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vec![
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(
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*Instruction::add(0, 0, 1)
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.set_b_is_constant()
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.set_c_is_constant(),
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Span(3, 4)
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),
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(
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*Instruction::multiply(1, 0, 2).set_c_is_constant(),
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Span(8, 9)
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),
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(Instruction::r#return(true), Span(11, 11)),
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],
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vec![
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ValueOwned::integer(1),
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ValueOwned::integer(2),
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ValueOwned::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(ValueOwned::integer(9))));
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}
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