109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
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//
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// misc.cpp: Rcpp R/C++ interface class library -- misc unit tests
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//
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// Copyright (C) 2013 - 2022 Dirk Eddelbuettel and Romain Francois
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//
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// This file is part of Rcpp.
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//
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// Rcpp is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 2 of the License, or
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// (at your option) any later version.
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//
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// Rcpp is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
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// [[Rcpp::plugins(cpp11)]]
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#include <Rcpp.h>
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using namespace Rcpp;
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// Class that indicates to R caller whether C++ stack was unwound
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struct unwindIndicator {
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unwindIndicator(Environment indicator_) {
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// Reset the indicator to NULL
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indicator = indicator_;
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indicator["unwound"] = R_NilValue;
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}
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// Set indicator to TRUE when stack unwinds
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~unwindIndicator() {
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indicator["unwound"] = LogicalVector::create(1);
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}
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Environment indicator;
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};
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// [[Rcpp::export]]
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SEXP testFastEval(RObject expr, Environment env, Environment indicator) {
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unwindIndicator my_data(indicator);
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return Rcpp::Rcpp_fast_eval(expr, env);
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}
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// [[Rcpp::export]]
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SEXP testSendInterrupt() {
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Rf_onintr();
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return R_NilValue;
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}
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SEXP maybeThrow(void* data) {
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bool* fail = (bool*) data;
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if (*fail)
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Rf_error("throw!");
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else
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return NumericVector::create(42);
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}
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// [[Rcpp::export]]
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SEXP testUnwindProtect(Environment indicator, bool fail) {
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unwindIndicator my_data(indicator);
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SEXP out = R_NilValue;
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#ifdef RCPP_USING_UNWIND_PROTECT
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out = Rcpp::unwindProtect(&maybeThrow, &fail);
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#endif
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return out;
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}
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// [[Rcpp::export]]
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SEXP testUnwindProtectLambda(Environment indicator, bool fail) {
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unwindIndicator my_data(indicator);
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SEXP out = R_NilValue;
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#ifdef RCPP_USING_UNWIND_PROTECT
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out = Rcpp::unwindProtect([&] () { return maybeThrow(&fail); });
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#endif
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return out;
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}
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struct FunctionObj {
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FunctionObj(int data_, bool fail_) : data(data_), fail(fail_) { }
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SEXP operator() () {
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NumericVector x = maybeThrow(&fail);
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x[0] = x[0] * data;
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return x;
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}
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int data;
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bool fail;
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};
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// [[Rcpp::export]]
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SEXP testUnwindProtectFunctionObject(Environment indicator, bool fail) {
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unwindIndicator my_data(indicator);
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SEXP out = R_NilValue;
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#ifdef RCPP_USING_UNWIND_PROTECT
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out = Rcpp::unwindProtect(FunctionObj(10, fail));
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#endif
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return out;
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}
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