bool ValidateLimitations::validateIndexing(TIntermBinary *node)
{
ASSERT((node->getOp() == EOpIndexDirect) ||
(node->getOp() == EOpIndexIndirect));
bool valid = true;
TIntermTyped *index = node->getRight();
// The index expression must have integral type.
if (!index->isScalarInt()) {
error(index->getLine(),
"Index expression must have integral type",
index->getCompleteString().c_str());
valid = false;
}
// The index expession must be a constant-index-expression unless
// the operand is a uniform in a vertex shader.
TIntermTyped *operand = node->getLeft();
bool skip = (mShaderType == GL_VERTEX_SHADER) &&
(operand->getQualifier() == EvqUniform);
if (!skip && !isConstIndexExpr(index))
{
error(index->getLine(), "Index expression must be constant", "[]");
valid = false;
}
return valid;
}
