Add binop_hint
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@ -107,6 +107,16 @@ impl TypeKind {
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}
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}
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pub fn binop_hint(&self, op: &BinaryOperator) -> Option<TypeKind> {
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match op {
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BinaryOperator::Add | BinaryOperator::Minus | BinaryOperator::Mult => {
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Some(self.clone())
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}
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BinaryOperator::And => None,
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BinaryOperator::Cmp(_) => None,
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}
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}
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pub fn signed(&self) -> bool {
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match self {
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TypeKind::Bool => false,
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@ -408,7 +408,11 @@ impl Expression {
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ExprKind::BinOp(op, lhs, rhs) => {
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// TODO make sure lhs and rhs can actually do this binary
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// operation once relevant
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let lhs_res = lhs.typecheck(state, &typerefs, hint_t);
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let lhs_res = lhs.typecheck(
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state,
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&typerefs,
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hint_t.and_then(|t| t.binop_hint(op)).as_ref(),
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);
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let lhs_type = state.or_else(lhs_res, TypeKind::Vague(Vague::Unknown), lhs.1);
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let rhs_res = rhs.typecheck(state, &typerefs, Some(&lhs_type));
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let rhs_type = state.or_else(rhs_res, TypeKind::Vague(Vague::Unknown), rhs.1);
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@ -5,5 +5,5 @@ pub fn OneHalf(var1: f32) -> f32 {
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}
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pub fn main() -> bool {
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return 7.5 > 5.5;
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return (7.5 > 5.5);
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}
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