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type_token.cpp
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type_token.cpp
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//===-- support/type_token.cpp ----------------------------------*- C++ -*-===//
//
// The RoSA Framework
//
//===----------------------------------------------------------------------===//
///
/// \file support/type_token.cpp
///
/// \author David Juhasz (david.juhasz@tuwien.ac.at)
///
/// \date 2017
///
/// \brief Implementation for rosa/support/type_token.hpp.
///
/// \todo Automatically generate proper cases for the switches with a big number
/// of handcrafted similar cases in them.
///
//===----------------------------------------------------------------------===//
#include "rosa/support/type_token.hpp"
namespace rosa {
using namespace token;
bool validToken(const Token T) {
Token TT = T;
bool Valid = true;
while (Valid && !emptyToken(TT)) {
Valid &= validTypeNumber(headOfToken(TT));
dropHeadOfToken(TT);
}
return Valid;
}
bool emptyToken(const Token T) { return static_cast<token_t>(T) == 0; }
size_t lengthOfToken(const Token T) {
Token TT = T;
size_t N = 0;
while (!emptyToken(TT)) {
++N;
dropHeadOfToken(TT);
}
return N;
}
size_t sizeOfValuesOfToken(const Token T) {
ASSERT(validToken(T));
Token TT = T;
size_t S = 0;
while (!emptyToken(TT)) {
S += sizeOfHeadOfToken(TT);
dropHeadOfToken(TT);
}
return S;
}
#define SIZECASE(N) \
{ \
case N: \
return TypeForNumber<static_cast<TypeNumber>(N)>::Size; \
}
size_t sizeOfHeadOfToken(const Token T) {
ASSERT(!emptyToken(T) && validToken(T));
switch (static_cast<type_nr_t>(headOfToken(T))) {
default: {
// Should never come here when \p T is valid and the case-list below covers
// \c rosa::BuiltinTypes.
ROSA_CRITICAL("unknown type number");
}
SIZECASE(1);
SIZECASE(2);
SIZECASE(3);
SIZECASE(4);
SIZECASE(5);
SIZECASE(6);
SIZECASE(7);
SIZECASE(8);
SIZECASE(9);
SIZECASE(10);
SIZECASE(11);
SIZECASE(12);
SIZECASE(13);
SIZECASE(14);
SIZECASE(15);
}
}
#define NAMECASE(N) \
{ \
case N: \
return TypeForNumber<static_cast<TypeNumber>(N)>::Name; \
}
const char *nameOfHeadOfToken(const Token T) {
ASSERT(!emptyToken(T) && validToken(T));
switch (static_cast<type_nr_t>(headOfToken(T))) {
default: {
// Should never come here when \p T is valid and the case-list below covers
// \c rosa::BuiltinTypes.
ROSA_CRITICAL("unknown type number");
}
NAMECASE(1);
NAMECASE(2);
NAMECASE(3);
NAMECASE(4);
NAMECASE(5);
NAMECASE(6);
NAMECASE(7);
NAMECASE(8);
NAMECASE(9);
NAMECASE(10);
NAMECASE(11);
NAMECASE(12);
NAMECASE(13);
NAMECASE(14);
NAMECASE(15);
}
}
void dropHeadOfToken(Token &T) {
T = static_cast<Token>(static_cast<token_t>(T) >> RepresentationBits);
}
void dropNOfToken(Token &T, const size_t N) {
T = static_cast<Token>(static_cast<token_t>(T) >> (N * RepresentationBits));
}
} // End namespace rosa

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