105 lines
3.4 KiB
Rust
105 lines
3.4 KiB
Rust
use dust_lang::*;
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#[test]
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fn function() {
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let source = "fn(a: int, b: int) -> int { a + b }";
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assert_eq!(
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run(source),
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Ok(Some(ValueOwned::function(Chunk::with_data(
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None,
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vec![
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(Instruction::add(2, 0, 1), Span(30, 31)),
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(Instruction::r#return(true), Span(35, 35)),
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],
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vec![ValueOwned::string("a"), ValueOwned::string("b"),],
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vec![
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Local::new(0, Type::Integer, false, Scope::default()),
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Local::new(1, Type::Integer, false, Scope::default())
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]
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))))
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);
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}
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#[test]
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fn function_call() {
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let source = "fn(a: int, b: int) -> int { a + b }(1, 2)";
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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, 36)),
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(Instruction::load_constant(1, 1, false), Span(36, 37)),
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(Instruction::load_constant(2, 2, false), Span(39, 40)),
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(Instruction::call(3, 0, 2), Span(35, 41)),
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(Instruction::r#return(true), Span(41, 41)),
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],
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vec![
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ValueOwned::function(Chunk::with_data(
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None,
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vec![
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(Instruction::add(2, 0, 1), Span(30, 31)),
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(Instruction::r#return(true), Span(35, 36)),
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],
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vec![ValueOwned::string("a"), ValueOwned::string("b"),],
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vec![
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Local::new(0, Type::Integer, false, Scope::default()),
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Local::new(1, Type::Integer, false, Scope::default())
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]
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)),
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ValueOwned::integer(1),
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ValueOwned::integer(2)
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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(3))));
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}
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#[test]
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fn function_declaration() {
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let source = "fn add (a: int, b: int) -> int { a + b }";
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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, 1, false), Span(0, 40)),
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(Instruction::define_local(0, 0, false), Span(3, 6)),
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(Instruction::r#return(false), Span(40, 40))
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],
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vec![
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ValueOwned::string("add"),
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ValueOwned::function(Chunk::with_data(
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None,
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vec![
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(Instruction::add(2, 0, 1), Span(35, 36)),
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(Instruction::r#return(true), Span(40, 40)),
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],
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vec![ValueOwned::string("a"), ValueOwned::string("b")],
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vec![
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Local::new(0, Type::Integer, false, Scope::default()),
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Local::new(1, Type::Integer, false, Scope::default())
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]
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),)
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],
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vec![Local::new(
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0,
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Type::Function(FunctionType {
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type_parameters: None,
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value_parameters: Some(vec![(0, Type::Integer), (1, Type::Integer)]),
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return_type: Box::new(Type::Integer),
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}),
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false,
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Scope::default(),
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)],
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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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