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Parser: boolCast boolean results even if not evaluated
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Even if the expression is not evaluated, we need the result to be
an integral type

Fixes #686
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ehaas committed Apr 18, 2024
1 parent 8a9b531 commit b75d695
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Showing 2 changed files with 9 additions and 0 deletions.
6 changes: 6 additions & 0 deletions src/aro/Parser.zig
Original file line number Diff line number Diff line change
Expand Up @@ -6447,6 +6447,8 @@ fn landExpr(p: *Parser) Error!Result {
if (try lhs.adjustTypes(tok, &rhs, p, .boolean_logic)) {
const res = lhs.val.toBool(p.comp) and rhs.val.toBool(p.comp);
lhs.val = Value.fromBool(res);
} else {
lhs.val.boolCast(p.comp);
}
try lhs.boolRes(p, .bool_and_expr, rhs);
}
Expand Down Expand Up @@ -6516,6 +6518,8 @@ fn eqExpr(p: *Parser) Error!Result {
const op: std.math.CompareOperator = if (tag == .equal_expr) .eq else .neq;
const res = lhs.val.compare(op, rhs.val, p.comp);
lhs.val = Value.fromBool(res);
} else {
lhs.val.boolCast(p.comp);
}
try lhs.boolRes(p, tag, rhs);
}
Expand Down Expand Up @@ -6545,6 +6549,8 @@ fn compExpr(p: *Parser) Error!Result {
};
const res = lhs.val.compare(op, rhs.val, p.comp);
lhs.val = Value.fromBool(res);
} else {
lhs.val.boolCast(p.comp);
}
try lhs.boolRes(p, tag, rhs);
}
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3 changes: 3 additions & 0 deletions test/cases/binary expressions.c
Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,9 @@ _Static_assert((-1 ^ 0) == -1, "");
_Static_assert((-1 ^ -1) == 0, "");
_Static_assert((-2 ^ 2) == -4, "");

_Static_assert(2.0||(2.0 == 2.0), "");
_Static_assert(2.0||(3.0 > 2.0), "");
_Static_assert(2.0||(2.0 && 2.0), "");

#define EXPECTED_ERRORS "binary expressions.c:3:7: error: invalid operands to binary expression ('long' and 'float')" \
"binary expressions.c:6:13: error: invalid operands to binary expression ('char' and 'int *')" \
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