46 lines
1020 B
Rust
46 lines
1020 B
Rust
use dust_lang::*;
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#[test]
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fn block_scope_captures_parent() {
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let source = "let x = 42; { x }";
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assert_eq!(run(source), Ok(Some(Value::integer(42))));
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}
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#[test]
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fn block_scope_does_not_capture_child() {
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let source = "{ let x = 42; } x";
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assert_eq!(
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run(source),
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Err(DustError::analysis(
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[AnalysisError::UndefinedVariable {
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identifier: Node::new(Identifier::new("x"), (16, 17))
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}],
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source
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))
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);
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}
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#[test]
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fn block_scope_does_not_capture_sibling() {
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let source = "{ let x = 42; } { x }";
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assert_eq!(
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run(source),
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Err(DustError::analysis(
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[AnalysisError::UndefinedVariable {
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identifier: Node::new(Identifier::new("x"), (18, 19))
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}],
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source
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))
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);
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}
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#[test]
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fn block_scope_does_not_pollute_parent() {
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let source = "let x = 42; { let x = \"foo\"; let x = \"bar\"; } x";
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assert_eq!(run(source), Ok(Some(Value::integer(42))));
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}
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