lean4-htt/src/library/vm/vm_string.cpp
2017-02-17 13:03:47 +01:00

34 lines
852 B
C++

/*
Copyright (c) 2016 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Author: Leonardo de Moura
*/
#include <string>
#include "util/interrupt.h"
#include "library/vm/vm_string.h"
namespace lean {
static void to_string(vm_obj const & o, std::string & s) {
check_system("to_string");
if (!is_simple(o)) {
to_string(cfield(o, 1), s);
s += static_cast<unsigned char>(cidx(cfield(o, 0)));
}
}
std::string to_string(vm_obj const & o) {
std::string r;
to_string(o, r);
return r;
}
vm_obj to_obj(std::string const & str) {
vm_obj r = mk_vm_simple(0);
for (unsigned i = 0; i < str.size(); i++) {
vm_obj args[2] = { mk_vm_simple(static_cast<unsigned char>(str[i])), r };
r = mk_vm_constructor(1, 2, args);
}
return r;
}
}