tseeker-pub/rust-crafting-interpreters-part-1
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Interpreter - String conversion when using the + operator

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Emmanuel BENOîT 2023-01-19 19:09:59 +01:00
parent c26ae0c053
commit a81adf888e
1 changed files with 6 additions and 0 deletions
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6
src/interpreter/interpretable.rs
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@ -417,6 +417,12 @@ fn on_binary(
TokenType::Plus => match (left_value, right_value) {
(Value::Number(a), Value::Number(b)) => Ok(Value::Number(a + b).into()),
(Value::String(a), Value::String(b)) => Ok(Value::String(a + &b).into()),
(a, Value::String(b)) => {
Ok(Value::String(a.convert_to_string(es, operator)? + &b).into())
}
(Value::String(a), b) => {
Ok(Value::String(a + &b.convert_to_string(es, operator)?).into())
}
_ => error(operator, "type error"),
},