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Add and pass analyzer tests

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This commit is contained in:
Jeff 2024-08-08 13:01:25 -04:00
parent e4ea402dfa
commit f5e822e916
1 changed files with 75 additions and 3 deletions
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78
dust-lang/src/analyzer.rs
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@ -7,7 +7,7 @@
/// - `Analyzer` struct
use std::collections::HashMap;
use crate::{AbstractSyntaxTree, Identifier, Node, Span, Statement, Type, Value};
use crate::{AbstractSyntaxTree, BuiltInFunction, Identifier, Node, Span, Statement, Type, Value};
/// Analyzes the abstract syntax tree for errors.
///
@ -152,11 +152,22 @@ impl<'a> Analyzer<'a> {
{
// Left side is valid
} else {
return Err(AnalyzerError::ExpectedIdentifier {
return Err(AnalyzerError::ExpectedIdentifierOrValue {
actual: left.as_ref().clone(),
});
}
if let Statement::BuiltInFunctionCall { function, .. } = &right.statement {
if function == &BuiltInFunction::IsEven || function == &BuiltInFunction::IsOdd {
if let Some(Type::Integer) = left.statement.expected_type(self.variables) {
} else {
return Err(AnalyzerError::ExpectedIntegerOrFloat {
actual: left.as_ref().clone(),
});
}
}
}
self.analyze_node(right)?;
}
}
@ -167,18 +178,79 @@ impl<'a> Analyzer<'a> {
#[derive(Clone, Debug, PartialEq)]
pub enum AnalyzerError {
ExpectedBoolean { actual: Node },
ExpectedFunction { position: Span },
ExpectedIdentifier { actual: Node },
ExpectedIdentifierOrValue { actual: Node },
ExpectedIntegerOrFloat { actual: Node },
UnexpectedIdentifier { identifier: Node },
}
#[cfg(test)]
mod tests {
use crate::{Identifier, Value};
use crate::{BuiltInFunction, Identifier, Value};
use super::*;
#[test]
fn is_even_expects_number() {
let abstract_tree = AbstractSyntaxTree {
nodes: [Node::new(
Statement::PropertyAccess(
Box::new(Node::new(Statement::Constant(Value::boolean(true)), (0, 1))),
Box::new(Node::new(
Statement::BuiltInFunctionCall {
function: BuiltInFunction::IsEven,
type_arguments: None,
value_arguments: None,
},
(1, 2),
)),
),
(0, 2),
)]
.into(),
};
let variables = HashMap::new();
let analyzer = Analyzer::new(&abstract_tree, &variables);
assert_eq!(
analyzer.analyze(),
Err(AnalyzerError::ExpectedIntegerOrFloat {
actual: Node::new(Statement::Constant(Value::boolean(true)), (0, 1))
})
)
}
#[test]
fn is_odd_expects_number() {
let abstract_tree = AbstractSyntaxTree {
nodes: [Node::new(
Statement::PropertyAccess(
Box::new(Node::new(Statement::Constant(Value::boolean(true)), (0, 1))),
Box::new(Node::new(
Statement::BuiltInFunctionCall {
function: BuiltInFunction::IsOdd,
type_arguments: None,
value_arguments: None,
},
(1, 2),
)),
),
(0, 2),
)]
.into(),
};
let variables = HashMap::new();
let analyzer = Analyzer::new(&abstract_tree, &variables);
assert_eq!(
analyzer.analyze(),
Err(AnalyzerError::ExpectedIntegerOrFloat {
actual: Node::new(Statement::Constant(Value::boolean(true)), (0, 1))
})
)
}
#[test]
fn multiply_expect_integer_or_float() {
let abstract_tree = AbstractSyntaxTree {