aboutsummaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--server/parser/parser.hpp27
1 files changed, 16 insertions, 11 deletions
diff --git a/server/parser/parser.hpp b/server/parser/parser.hpp
index 596f84f..7d6f31d 100644
--- a/server/parser/parser.hpp
+++ b/server/parser/parser.hpp
@@ -41,25 +41,30 @@ private:
double exec_expr(double lhs, unsigned min_prec) {
for (auto op = peek_operator(); op.has_value() && op->get_precedence() >= min_prec;) {
- const auto lhs_op = *op;
+ const auto prev = *op;
+ const auto prev_prec = prev.get_precedence();
+
m_lexer.drop_token();
auto rhs = exec_primary();
for (op = peek_operator(); op.has_value(); op = peek_operator()) {
- const auto op_prec = op->get_precedence();
- const auto lhs_prec = lhs_op.get_precedence();
- const auto ok_left_assoc = op->is_left_associative() && op_prec > lhs_prec;
- const auto ok_right_assoc = op->is_right_associative() && op_prec == lhs_prec;
- const auto ok = ok_left_assoc || ok_right_assoc;
-
- if (!ok) {
- break;
+ const auto next = *op;
+ const auto next_prec = next.get_precedence();
+
+ {
+ const auto acc_left_assoc = next.is_left_associative() && next_prec > prev_prec;
+ const auto acc_right_assoc = next.is_right_associative() && next_prec == prev_prec;
+ const auto acc = acc_left_assoc || acc_right_assoc;
+
+ if (!acc) {
+ break;
+ }
}
- rhs = exec_expr(rhs, op->get_precedence());
+ rhs = exec_expr(rhs, next_prec);
}
- lhs = lhs_op.exec(lhs, rhs);
+ lhs = prev.exec(lhs, rhs);
}
return lhs;
}