tseeker-pub/rust-crafting-interpreters-part-1
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Interpreter - Access methods through get expressions

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This commit is contained in:
Emmanuel BENOîT 2023-01-09 07:32:50 +01:00
parent e371217df0
commit 58c1bbcf68
1 changed files with 11 additions and 7 deletions
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14
src/interpreter/classes.rs
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@ -71,14 +71,18 @@ impl Instance {
}
pub(super) fn get(&self, name: &Token) -> SloxResult<Value> {
match self.fields.get(&name.lexeme) {
Some(value) => Ok(value.clone()),
None => Err(SloxError::with_token(
if let Some(value) = self.fields.get(&name.lexeme) {
return Ok(value.clone());
}
if let Some(method) = self.class.borrow().methods.get(&name.lexeme) {
return Ok(Value::from(method.clone()));
}
Err(SloxError::with_token(
ErrorKind::Runtime,
name,
"undefined property".to_owned(),
)),
}
))
}
pub(super) fn set(&mut self, name: &Token, value: Value) {