mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2024-12-24 18:58:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

internal/shader: check types for && and || correctly

Browse Source 
Updates #2256
This commit is contained in:
Hajime Hoshi 2022-08-19 17:34:03 +09:00
parent d6047f3988
commit 85d54515cd
2 changed files with 62 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
internal/shader/expr.go
View File

@ -53,7 +53,11 @@ func isModAvailableForConsts(lhs, rhs *shaderir.Expr) bool {
return false
}
func canCompare(lhs, rhs *shaderir.Expr, lhst, rhst shaderir.Type) bool {
func canApplyBinaryOp(lhs, rhs *shaderir.Expr, lhst, rhst shaderir.Type, op shaderir.Op) bool {
if op == shaderir.AndAnd || op == shaderir.OrOr {
return lhst.Main == shaderir.Bool && rhst.Main == shaderir.Bool
}
switch {
case lhs.Const != nil && rhs.Const != nil:
switch {
@ -202,12 +206,23 @@ func (cs *compileState) parseExpr(block *block, fname string, expr ast.Expr, mar
var v gconstant.Value
var t shaderir.Type
switch op {
case token.EQL, token.NEQ, token.LSS, token.LEQ, token.GTR, token.GEQ:
if !canCompare(&lhs[0], &rhs[0], lhst, rhst) {
case token.EQL, token.NEQ, token.LSS, token.LEQ, token.GTR, token.GEQ, token.LAND, token.LOR:
op2, ok := shaderir.OpFromToken(op, lhst, rhst)
if !ok {
cs.addError(e.Pos(), fmt.Sprintf("unexpected operator: %s", op))
return nil, nil, nil, false
}
if !canApplyBinaryOp(&lhs[0], &rhs[0], lhst, rhst, op2) {
cs.addError(e.Pos(), fmt.Sprintf("types don't match: %s %s %s", lhst.String(), op, rhst.String()))
return nil, nil, nil, false
}
switch op {
case token.LAND, token.LOR:
b := gconstant.BoolVal(gconstant.BinaryOp(lhs[0].Const, op, rhs[0].Const))
v = gconstant.MakeBool(b)
default:
v = gconstant.MakeBool(gconstant.Compare(lhs[0].Const, op, rhs[0].Const))
}
t = shaderir.Type{Main: shaderir.Bool}
default:
if op == token.REM {
@ -253,7 +268,7 @@ func (cs *compileState) parseExpr(block *block, fname string, expr ast.Expr, mar
var t shaderir.Type
switch {
case op == shaderir.LessThanOp || op == shaderir.LessThanEqualOp || op == shaderir.GreaterThanOp || op == shaderir.GreaterThanEqualOp || op == shaderir.EqualOp || op == shaderir.NotEqualOp || op == shaderir.VectorEqualOp || op == shaderir.VectorNotEqualOp || op == shaderir.AndAnd || op == shaderir.OrOr:
if !canCompare(&lhs[0], &rhs[0], lhst, rhst) {
if !canApplyBinaryOp(&lhs[0], &rhs[0], lhst, rhst, op) {
cs.addError(e.Pos(), fmt.Sprintf("types don't match: %s %s %s", lhst.String(), e.Op, rhst.String()))
return nil, nil, nil, false
}

42
internal/shader/syntax_test.go
View File

@ -2321,6 +2321,48 @@ func TestSyntaxEqual(t *testing.T) {
{stmt: "a, b := mat2(1), vec2(1); _ = a != b", err: true},
{stmt: "a, b := mat2(1), mat2(1); _ = a == b", err: true}, // Comparing matrices are not allowed.
{stmt: "a, b := mat2(1), mat2(1); _ = a != b", err: true}, // Comparing matrices are not allowed.
{stmt: "_ = false && true", err: false},
{stmt: "_ = false || true", err: false},
{stmt: "_ = false && 1", err: true},
{stmt: "_ = false || 1", err: true},
{stmt: "_ = false && 1.0", err: true},
{stmt: "_ = false || 1.0", err: true},
{stmt: "_ = false && 1.1", err: true},
{stmt: "_ = false || 1.1", err: true},
{stmt: "a, b := false, true; _ = a && b", err: false},
{stmt: "a, b := false, true; _ = a || b", err: false},
{stmt: "a, b := false, 1; _ = a && b", err: true},
{stmt: "a, b := false, 1; _ = a || b", err: true},
{stmt: "a, b := false, 1.0; _ = a && b", err: true},
{stmt: "a, b := false, 1.0; _ = a || b", err: true},
{stmt: "a, b := false, 1.1; _ = a && b", err: true},
{stmt: "a, b := false, 1.1; _ = a || b", err: true},
{stmt: "a, b := false, vec2(1); _ = a && b", err: true},
{stmt: "a, b := false, vec2(1); _ = a || b", err: true},
{stmt: "a, b := false, mat2(1); _ = a && b", err: true},
{stmt: "a, b := false, mat2(1); _ = a || b", err: true},
{stmt: "_ = 1.0 && true", err: true},
{stmt: "_ = 1.0 || true", err: true},
{stmt: "_ = 1.0 && 1", err: true},
{stmt: "_ = 1.0 || 1", err: true},
{stmt: "_ = 1.0 && 1.0", err: true},
{stmt: "_ = 1.0 || 1.0", err: true},
{stmt: "_ = 1.0 && 1.1", err: true},
{stmt: "_ = 1.0 || 1.1", err: true},
{stmt: "a, b := 1.0, true; _ = a && b", err: true},
{stmt: "a, b := 1.0, true; _ = a || b", err: true},
{stmt: "a, b := 1.0, 1; _ = a && b", err: true},
{stmt: "a, b := 1.0, 1; _ = a || b", err: true},
{stmt: "a, b := 1.0, 1.0; _ = a && b", err: true},
{stmt: "a, b := 1.0, 1.0; _ = a || b", err: true},
{stmt: "a, b := 1.0, 1.1; _ = a && b", err: true},
{stmt: "a, b := 1.0, 1.1; _ = a || b", err: true},
{stmt: "a, b := 1.0, vec2(1); _ = a && b", err: true},
{stmt: "a, b := 1.0, vec2(1); _ = a || b", err: true},
{stmt: "a, b := 1.0, mat2(1); _ = a && b", err: true},
{stmt: "a, b := 1.0, mat2(1); _ = a || b", err: true},
}
for _, c := range cases {