Function flattenOrSequence

src/ast/ast_simulate.cpp:2697–2708

we flatten or(or(or(a,b),c),d) into a single vector {a,b,c,d}

    // we flatten or(or(or(a,b),c),d) into a single vector {a,b,c,d}
    void flattenOrSequence ( const ExprOp2 * op, vector<ExpressionPtr> & ret ) {
        if ( op->left->rtti_isOp2() && static_cast<ExprOp2*>(op->left)->op==op->op ) {
            flattenOrSequence(static_cast<ExprOp2*>(op->left), ret);
        } else {
            ret.push_back(op->left);
        }
        if ( op->right->rtti_isOp2() && static_cast<ExprOp2*>(op->right)->op==op->op ) {
            flattenOrSequence(static_cast<ExprOp2*>(op->right), ret);
        } else {
            ret.push_back(op->right);
        }
    }

    ExpressionPtr SimulateVisitor::visit(ExprOp2 * expr) {
        const auto &at = expr->at;