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/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*/
#include "token.hpp"
#include <common.hpp>
#include <parse/parseerror.hpp>
Token::Token():
m_type(TOK_NULL)
{
}
Token::Token(enum eTokenType type):
m_type(type)
{
}
Token::Token(enum eTokenType type, ::std::string str):
m_type(type),
m_data(Data::make_String(mv$(str)))
{
}
Token::Token(uint64_t val, enum eCoreType datatype):
m_type(TOK_INTEGER),
m_data( Data::make_Integer({datatype, val}) )
{
}
Token::Token(double val, enum eCoreType datatype):
m_type(TOK_FLOAT),
m_data( Data::make_Float({datatype, val}) )
{
}
const char* Token::typestr(enum eTokenType type)
{
switch(type)
{
#define _(t) case t: return #t;
#include "eTokenType.enum.h"
#undef _
}
return ">>BUGCHECK: BADTOK<<";
}
enum eTokenType Token::typefromstr(const ::std::string& s)
{
if(s == "")
return TOK_NULL;
#define _(t) else if( s == #t ) return t;
#include "eTokenType.enum.h"
#undef _
else
return TOK_NULL;
}
struct EscapedString {
const ::std::string& s;
EscapedString(const ::std::string& s): s(s) {}
friend ::std::ostream& operator<<(::std::ostream& os, const EscapedString& x) {
for(auto b : x.s) {
switch(b)
{
case '"':
os << "\\\"";
break;
case '\\':
os << "\\\\";
break;
case '\n':
os << "\\n";
break;
default:
if( ' ' <= b && b < 0x7F )
os << b;
else
os << "\\u{" << ::std::hex << (unsigned int)b << "}";
break;
}
}
return os;
}
};
::std::string Token::to_str() const
{
switch(m_type)
{
case TOK_NULL: return "/*null*/";
case TOK_EOF: return "/*eof*/";
case TOK_NEWLINE: return "\n";
case TOK_WHITESPACE: return " ";
case TOK_COMMENT: return "/*" + m_data.as_String() + "*/";
// Value tokens
case TOK_IDENT: return m_data.as_String();
case TOK_MACRO: return m_data.as_String() + "!";
case TOK_LIFETIME: return "'" + m_data.as_String();
case TOK_INTEGER: return FMT(m_data.as_Integer().m_intval); // TODO: suffix for type
case TOK_CHAR: return FMT("'\\u{"<< ::std::hex << m_data.as_Integer().m_intval << "}");
case TOK_FLOAT: return FMT(m_data.as_Float().m_floatval);
case TOK_STRING: return FMT("\"" << EscapedString(m_data.as_String()) << "\"");
case TOK_BYTESTRING:return FMT("b\"" << m_data.as_String() << "\"");
case TOK_CATTR_OPEN:return "#![";
case TOK_ATTR_OPEN: return "#[";
case TOK_UNDERSCORE:return "_";
// Symbols
case TOK_PAREN_OPEN: return "(";
case TOK_PAREN_CLOSE: return ")";
case TOK_BRACE_OPEN: return "{";
case TOK_BRACE_CLOSE: return "}";
case TOK_LT: return "<";
case TOK_GT: return ">";
case TOK_SQUARE_OPEN: return "[";
case TOK_SQUARE_CLOSE: return "]";
case TOK_COMMA: return ",";
case TOK_SEMICOLON: return ";";
case TOK_COLON: return ":";
case TOK_DOUBLE_COLON: return ":";
case TOK_STAR: return "*";
case TOK_AMP: return "&";
case TOK_PIPE: return "|";
case TOK_FATARROW: return "=>"; // =>
case TOK_THINARROW: return "->"; // ->
case TOK_PLUS: return "+";
case TOK_DASH: return "-";
case TOK_EXCLAM: return "!";
case TOK_PERCENT: return "%";
case TOK_SLASH: return "/";
case TOK_DOT: return ".";
case TOK_DOUBLE_DOT: return "...";
case TOK_TRIPLE_DOT: return "..";
case TOK_EQUAL: return "=";
case TOK_PLUS_EQUAL: return "+=";
case TOK_DASH_EQUAL: return "-";
case TOK_PERCENT_EQUAL: return "%=";
case TOK_SLASH_EQUAL: return "/=";
case TOK_STAR_EQUAL: return "*=";
case TOK_AMP_EQUAL: return "&=";
case TOK_PIPE_EQUAL: return "|=";
case TOK_DOUBLE_EQUAL: return "==";
case TOK_EXCLAM_EQUAL: return "!=";
case TOK_GTE: return ">=";
case TOK_LTE: return "<=";
case TOK_DOUBLE_AMP: return "&&";
case TOK_DOUBLE_PIPE: return "||";
case TOK_DOUBLE_LT: return "<<";
case TOK_DOUBLE_GT: return ">>";
case TOK_DOUBLE_LT_EQUAL: return "<=";
case TOK_DOUBLE_GT_EQUAL: return ">=";
case TOK_DOLLAR: return "$";
case TOK_QMARK: return "?";
case TOK_AT: return "@";
case TOK_TILDE: return "~";
case TOK_BACKSLASH: return "\\";
case TOK_CARET: return "^";
case TOK_CARET_EQUAL: return "^=";
case TOK_BACKTICK: return "`";
// Reserved Words
case TOK_RWORD_PUB: return "pub";
case TOK_RWORD_PRIV: return "priv";
case TOK_RWORD_MUT: return "mut";
case TOK_RWORD_CONST: return "const";
case TOK_RWORD_STATIC: return "static";
case TOK_RWORD_UNSAFE: return "unsafe";
case TOK_RWORD_EXTERN: return "extern";
case TOK_RWORD_CRATE: return "crate";
case TOK_RWORD_MOD: return "mod";
case TOK_RWORD_STRUCT: return "struct";
case TOK_RWORD_ENUM: return "enum";
case TOK_RWORD_TRAIT: return "trait";
case TOK_RWORD_FN: return "fn";
case TOK_RWORD_USE: return "use";
case TOK_RWORD_IMPL: return "impl";
case TOK_RWORD_TYPE: return "type";
case TOK_RWORD_WHERE: return "where";
case TOK_RWORD_AS: return "as";
case TOK_RWORD_LET: return "let";
case TOK_RWORD_MATCH: return "match";
case TOK_RWORD_IF: return "if";
case TOK_RWORD_ELSE: return "else";
case TOK_RWORD_LOOP: return "loop";
case TOK_RWORD_WHILE: return "while";
case TOK_RWORD_FOR: return "for";
case TOK_RWORD_IN: return "in";
case TOK_RWORD_DO: return "do";
case TOK_RWORD_CONTINUE:return "continue";
case TOK_RWORD_BREAK: return "break";
case TOK_RWORD_RETURN: return "return";
case TOK_RWORD_YIELD: return "yeild";
case TOK_RWORD_BOX: return "box";
case TOK_RWORD_REF: return "ref";
case TOK_RWORD_FALSE: return "false";
case TOK_RWORD_TRUE: return "true";
case TOK_RWORD_SELF: return "self";
case TOK_RWORD_SUPER: return "super";
case TOK_RWORD_PROC: return "proc";
case TOK_RWORD_MOVE: return "move";
case TOK_RWORD_ABSTRACT:return "abstract";
case TOK_RWORD_FINAL: return "final";
case TOK_RWORD_PURE: return "pure";
case TOK_RWORD_OVERRIDE:return "override";
case TOK_RWORD_VIRTUAL: return "virtual";
case TOK_RWORD_ALIGNOF: return "alignof";
case TOK_RWORD_OFFSETOF:return "offsetof";
case TOK_RWORD_SIZEOF: return "sizeof";
case TOK_RWORD_TYPEOF: return "typeof";
case TOK_RWORD_BE: return "be";
case TOK_RWORD_UNSIZED: return "unsized";
}
throw ParseError::BugCheck("Reached end of Token::to_str");
}
void operator%(::Serialiser& s, enum eTokenType c) {
s << Token::typestr(c);
}
void operator%(::Deserialiser& s, enum eTokenType& c) {
::std::string n;
s.item(n);
c = Token::typefromstr(n);
}
SERIALISE_TYPE(Token::, "Token", {
s % m_type;
s << Token::Data::tag_to_str(m_data.tag());
TU_MATCH(Token::Data, (m_data), (e),
(None, ),
(String,
s << e;
),
(Integer,
s % e.m_datatype;
s.item( e.m_intval );
),
(Float,
s % e.m_datatype;
s.item( e.m_floatval );
)
)
},{
s % m_type;
Token::Data::Tag tag;
{
::std::string tag_str;
s.item( tag_str );
tag = Token::Data::tag_from_str(tag_str);
}
switch(tag)
{
case Token::Data::TAGDEAD: break;
case Token::Data::TAG_None: break;
case Token::Data::TAG_String:{
::std::string str;
s.item( str );
m_data = Token::Data::make_String(str);
break; }
case Token::Data::TAG_Integer:{
enum eCoreType dt;
uint64_t v;
s % dt;
s.item( v );
m_data = Token::Data::make_Integer({dt, v});
break; }
case Token::Data::TAG_Float:{
enum eCoreType dt;
double v;
s % dt;
s.item( v );
m_data = Token::Data::make_Float({dt, v});
break; }
}
});
::std::ostream& operator<<(::std::ostream& os, const Token& tok)
{
os << Token::typestr(tok.type());
switch(tok.type())
{
case TOK_STRING:
case TOK_BYTESTRING:
case TOK_IDENT:
case TOK_MACRO:
case TOK_LIFETIME:
os << "\"" << EscapedString(tok.str()) << "\"";
break;
case TOK_INTEGER:
os << ":" << tok.intval();
break;
default:
break;
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const Position& p)
{
return os << p.filename << ":" << p.line;
}
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