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#include "rust-token.h"
#include "rust-diagnostics.h" // for error_at
namespace Rust {
// Hackily defined way to get token description for enum value using x-macros
const char *
get_token_description (TokenId id)
{
switch (id)
{
#define RS_TOKEN(name, descr) \
case name: \
return descr;
#define RS_TOKEN_KEYWORD(x, y) RS_TOKEN (x, y)
RS_TOKEN_LIST
#undef RS_TOKEN_KEYWORD
#undef RS_TOKEN
default:
gcc_unreachable ();
}
}
/* Hackily defined way to get token description as a string for enum value using
* x-macros */
const char *
token_id_to_str (TokenId id)
{
switch (id)
{
#define RS_TOKEN(name, _) \
case name: \
return #name;
#define RS_TOKEN_KEYWORD(x, y) RS_TOKEN (x, y)
RS_TOKEN_LIST
#undef RS_TOKEN_KEYWORD
#undef RS_TOKEN
default:
gcc_unreachable ();
}
}
const char *
get_type_hint_string (PrimitiveCoreType type)
{
switch (type)
{
case CORETYPE_BOOL:
return "bool";
case CORETYPE_CHAR:
return "char";
case CORETYPE_STR:
return "str";
// case CORETYPE_INT:
case CORETYPE_ISIZE:
return "isize";
// case CORETYPE_UINT:
case CORETYPE_USIZE:
return "usize";
case CORETYPE_F32:
return "f32";
case CORETYPE_F64:
return "f64";
case CORETYPE_I8:
return "i8";
case CORETYPE_I16:
return "i16";
case CORETYPE_I32:
return "i32";
case CORETYPE_I64:
return "i64";
case CORETYPE_I128:
return "i128";
case CORETYPE_U8:
return "u8";
case CORETYPE_U16:
return "u16";
case CORETYPE_U32:
return "u32";
case CORETYPE_U64:
return "u64";
case CORETYPE_U128:
return "u128";
case CORETYPE_UNKNOWN:
default:
return "unknown";
}
}
const char *
Token::get_type_hint_str () const
{
return get_type_hint_string (type_hint);
}
const std::string &
Token::get_str () const
{
// FIXME: attempt to return null again
// gcc_assert(str != NULL);
// HACK: allow referencing an empty string
static const std::string empty = "";
if (str == NULL)
{
rust_error_at (get_locus (),
"attempted to get string for '%s', which has no string. "
"returning empty string instead.",
get_token_description ());
return empty;
}
return *str;
}
} // namespace Rust
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