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Code Issues

Write some failing analyzer tests

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This commit is contained in:
Jeff 2024-08-12 19:39:26 -04:00
parent 390511fa20
commit f3bef42563
1 changed files with 60 additions and 1 deletions
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61
dust-lang/src/analyzer.rs
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@ -445,6 +445,12 @@ pub enum AnalyzerError {
actual: usize,
position: Span,
},
IndexOutOfBounds {
list: Node<Statement>,
index: Node<Statement>,
index_value: usize,
length: usize,
},
TypeConflict {
actual_statement: Node<Statement>,
actual_type: Type,
@ -472,6 +478,9 @@ impl AnalyzerError {
AnalyzerError::ExpectedMap { actual } => actual.position,
AnalyzerError::ExpectedValue { actual } => actual.position,
AnalyzerError::ExpectedValueArgumentCount { position, .. } => *position,
AnalyzerError::IndexOutOfBounds { list, index, .. } => {
(list.position.0, index.position.1)
}
AnalyzerError::TypeConflict {
actual_statement, ..
} => actual_statement.position,
@ -507,6 +516,16 @@ impl Display for AnalyzerError {
AnalyzerError::ExpectedValueArgumentCount {
expected, actual, ..
} => write!(f, "Expected {} value arguments, found {}", expected, actual),
AnalyzerError::IndexOutOfBounds {
list,
index,
index_value,
length,
} => write!(
f,
"Index {} out of bounds for list {} with length {}",
index_value, list, length
),
AnalyzerError::TypeConflict {
actual_statement,
actual_type,
@ -537,6 +556,46 @@ mod tests {
use super::*;
#[test]
fn constant_list_index_out_of_bounds() {
let source = "[1, 2, 3][3]";
assert_eq!(
analyze(source),
Err(DustError::AnalyzerError {
analyzer_error: AnalyzerError::IndexOutOfBounds {
list: Node::new(
Statement::List(vec![
Node::new(Statement::Constant(Value::integer(1)), (1, 2)),
Node::new(Statement::Constant(Value::integer(2)), (4, 5)),
Node::new(Statement::Constant(Value::integer(3)), (7, 8)),
]),
(0, 9)
),
index: Node::new(Statement::Constant(Value::integer(3)), (10, 11)),
index_value: 3,
length: 3
},
source
})
);
}
#[test]
fn nonexistant_field() {
let source = "{ x = 1 }.y";
assert_eq!(
analyze(source),
Err(DustError::AnalyzerError {
analyzer_error: AnalyzerError::UndefinedVariable {
identifier: Node::new(Statement::Identifier(Identifier::new("y")), (10, 11)),
},
source
})
);
}
#[test]
fn malformed_list_index() {
let source = "[1, 2, 3]['foo']";
@ -553,7 +612,7 @@ mod tests {
}
#[test]
fn malformed_property_access() {
fn malformed_field_access() {
let source = "{ x = 1 }.0";
assert_eq!(