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/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*/
#include "token.hpp"
#include <common.hpp>
#include <parse/parseerror.hpp>
#include "interpolated_fragment.hpp"
#include <ast/types.hpp>
#include <ast/ast.hpp>
#include <ast/expr.hpp> // for reasons
Token::~Token()
{
switch(m_type)
{
case TOK_INTERPOLATED_TYPE:
delete reinterpret_cast<TypeRef*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_PATTERN:
delete reinterpret_cast<AST::Pattern*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_PATH:
delete reinterpret_cast<AST::Path*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_EXPR:
delete reinterpret_cast<AST::ExprNode*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_STMT:
delete reinterpret_cast<AST::ExprNode*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_BLOCK:
delete reinterpret_cast<AST::ExprNode*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_META:
delete reinterpret_cast<AST::Attribute*>(m_data.as_Fragment());
break;
case TOK_INTERPOLATED_VIS:
delete reinterpret_cast<AST::Visibility*>(m_data.as_Fragment());
break;
default:
break;
}
}
Token::Token():
m_type(TOK_NULL)
{
}
Token::Token(enum eTokenType type):
m_type(type)
{
}
Token::Token(enum eTokenType type, RcString str):
m_type(type),
m_data(Data::make_IString(mv$(str)))
{
}
Token::Token(enum eTokenType type, ::std::string str):
m_type(type),
m_data(Data::make_String(mv$(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}) )
{
}
Token::Token(const InterpolatedFragment& frag)
{
switch(frag.m_type)
{
case InterpolatedFragment::TT:
throw "";
case InterpolatedFragment::VIS:
m_type = TOK_INTERPOLATED_VIS;
m_data = new AST::Visibility( *reinterpret_cast<const AST::Visibility*>(frag.m_ptr) );
break;
case InterpolatedFragment::TYPE:
m_type = TOK_INTERPOLATED_TYPE;
m_data = new TypeRef( reinterpret_cast<const TypeRef*>(frag.m_ptr)->clone() );
break;
case InterpolatedFragment::PAT:
m_type = TOK_INTERPOLATED_PATTERN;
m_data = new AST::Pattern( reinterpret_cast<const AST::Pattern*>(frag.m_ptr)->clone() );
break;
case InterpolatedFragment::PATH:
m_type = TOK_INTERPOLATED_PATH;
m_data = new AST::Path( *reinterpret_cast<const AST::Path*>(frag.m_ptr) );
break;
case InterpolatedFragment::EXPR:
m_type = TOK_INTERPOLATED_EXPR; if(0)
case InterpolatedFragment::STMT:
m_type = TOK_INTERPOLATED_STMT; if(0)
case InterpolatedFragment::BLOCK:
m_type = TOK_INTERPOLATED_BLOCK;
m_data = reinterpret_cast<const AST::ExprNode*>(frag.m_ptr)->clone().release();
break;
case InterpolatedFragment::META:
m_type = TOK_INTERPOLATED_META;
m_data = new AST::Attribute( reinterpret_cast<const AST::Attribute*>(frag.m_ptr)->clone() );
break;
case InterpolatedFragment::ITEM: {
m_type = TOK_INTERPOLATED_ITEM;
const auto& named = *reinterpret_cast<const AST::Named<AST::Item>*>(frag.m_ptr);
auto item = named.data.clone();
m_data = new AST::Named<AST::Item>( named.span, named.attrs.clone(), named.is_pub, named.name, mv$(item) );
break; }
}
}
Token::Token(TagTakeIP, InterpolatedFragment frag)
{
switch(frag.m_type)
{
case InterpolatedFragment::TT:
throw "";
case InterpolatedFragment::VIS:
m_type = TOK_INTERPOLATED_VIS;
m_data = new AST::Visibility( mv$(*reinterpret_cast<AST::Visibility*>(frag.m_ptr)) );
break;
case InterpolatedFragment::TYPE:
m_type = TOK_INTERPOLATED_TYPE;
m_data = new TypeRef( mv$(*reinterpret_cast<TypeRef*>(frag.m_ptr)) );
break;
case InterpolatedFragment::PAT:
m_type = TOK_INTERPOLATED_PATTERN;
m_data = new AST::Pattern( mv$(*reinterpret_cast<AST::Pattern*>(frag.m_ptr)) );
break;
case InterpolatedFragment::PATH:
m_type = TOK_INTERPOLATED_PATH;
m_data = new AST::Path( mv$(*reinterpret_cast<AST::Path*>(frag.m_ptr)) );
break;
case InterpolatedFragment::EXPR:
m_type = TOK_INTERPOLATED_EXPR; if(0)
case InterpolatedFragment::STMT:
m_type = TOK_INTERPOLATED_STMT; if(0)
case InterpolatedFragment::BLOCK:
m_type = TOK_INTERPOLATED_BLOCK;
m_data = reinterpret_cast<AST::ExprNode*>(frag.m_ptr);
frag.m_ptr = nullptr;
break;
case InterpolatedFragment::ITEM:
m_type = TOK_INTERPOLATED_ITEM;
m_data = frag.m_ptr;
frag.m_ptr = nullptr;
break;
case InterpolatedFragment::META:
m_type = TOK_INTERPOLATED_META;
m_data = frag.m_ptr;
frag.m_ptr = nullptr;
break;
}
}
Token::Token(const Token& t):
m_type(t.m_type),
m_data( Data::make_None({}) ),
m_pos( t.m_pos )
{
assert( t.m_data.tag() != Data::TAGDEAD );
TU_MATCH(Data, (t.m_data), (e),
(None, ),
(IString, m_data = Data::make_IString(e); ),
(String, m_data = Data::make_String(e); ),
(Integer, m_data = Data::make_Integer(e);),
(Float, m_data = Data::make_Float(e);),
(Fragment, BUG(t.m_pos, "Attempted to copy a fragment - " << t);)
)
}
Token Token::clone() const
{
Token rv(m_type);
rv.m_pos = m_pos;
assert( m_data.tag() != Data::TAGDEAD );
TU_MATCH(Data, (m_data), (e),
(None,
),
(IString,
rv.m_data = Data::make_IString(e);
),
(String,
rv.m_data = Data::make_String(e);
),
(Integer,
rv.m_data = Data::make_Integer(e);
),
(Float,
rv.m_data = Data::make_Float(e);
),
(Fragment,
assert(e);
switch(m_type)
{
case TOK_INTERPOLATED_TYPE:
rv.m_data = new TypeRef( reinterpret_cast<TypeRef*>(e)->clone() );
break;
case TOK_INTERPOLATED_PATTERN:
rv.m_data = new AST::Pattern( reinterpret_cast<AST::Pattern*>(e)->clone() );
break;
case TOK_INTERPOLATED_PATH:
rv.m_data = new AST::Path( *reinterpret_cast<AST::Path*>(e) );
break;
case TOK_INTERPOLATED_EXPR:
rv.m_data = reinterpret_cast<AST::ExprNode*>(e)->clone().release();
break;
case TOK_INTERPOLATED_STMT:
rv.m_data = reinterpret_cast<AST::ExprNode*>(e)->clone().release();
break;
case TOK_INTERPOLATED_BLOCK:
rv.m_data = reinterpret_cast<AST::ExprNode*>(e)->clone().release();
break;
case TOK_INTERPOLATED_META:
rv.m_data = new AST::Attribute( reinterpret_cast<AST::Attribute*>(e)->clone() );
break;
case TOK_INTERPOLATED_ITEM:
TODO(m_pos, "clone interpolated item");
//rv.m_data = new AST::Named( AST::Item( reinterpret_cast<AST::Attribute*>(e)->clone() ) );
break;
default:
BUG(m_pos, "Fragment with invalid token type (" << *this << ")");
break;
}
assert(rv.m_data.is_Fragment());
)
)
return rv;
}
::std::unique_ptr<AST::ExprNode> Token::take_frag_node()
{
assert( m_type == TOK_INTERPOLATED_EXPR || m_type == TOK_INTERPOLATED_STMT || m_type == TOK_INTERPOLATED_BLOCK );
auto ptr = m_data.as_Fragment();
m_data.as_Fragment() = nullptr;
return ::std::unique_ptr<AST::ExprNode>( reinterpret_cast<AST::ExprNode*>( ptr ) );
}
::AST::Named<AST::Item> Token::take_frag_item()
{
assert( m_type == TOK_INTERPOLATED_ITEM );
auto ptr = reinterpret_cast<AST::Named<AST::Item>*>(m_data.as_Fragment());
m_data.as_Fragment() = nullptr;
auto rv = mv$( *ptr );
delete ptr;
return mv$(rv);
}
::AST::Visibility Token::take_frag_vis()
{
assert( m_type == TOK_INTERPOLATED_VIS );
auto ptr = reinterpret_cast<AST::Visibility*>(m_data.as_Fragment());
m_data.as_Fragment() = nullptr;
auto rv = mv$( *ptr );
delete ptr;
return mv$(rv);
}
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) if( s == #t ) return t;
#include "eTokenType.enum.h"
#undef _
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
{
::std::stringstream ss;
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() + "*/";
case TOK_INTERPOLATED_TYPE:
reinterpret_cast<const ::TypeRef*>(m_data.as_Fragment())->print(ss, false);
return ss.str();
case TOK_INTERPOLATED_PATH:
reinterpret_cast<const ::AST::Path*>(m_data.as_Fragment())->print_pretty(ss, true);
return ss.str();
case TOK_INTERPOLATED_PATTERN:
// TODO: Use a pretty printer too?
return FMT( *reinterpret_cast<const ::AST::Pattern*>(m_data.as_Fragment()) );
case TOK_INTERPOLATED_STMT:
case TOK_INTERPOLATED_BLOCK:
case TOK_INTERPOLATED_EXPR: {
::std::stringstream ss;
reinterpret_cast<const ::AST::ExprNode*>(m_data.as_Fragment())->print(ss);
return ss.str();
}
case TOK_INTERPOLATED_META: return "/*:meta*/";
case TOK_INTERPOLATED_ITEM: return "/*:item*/";
case TOK_INTERPOLATED_IDENT: return "/*:ident*/";
case TOK_INTERPOLATED_VIS: return "/*:vis*/";
// Value tokens
case TOK_IDENT: return m_data.as_IString().c_str();
case TOK_LIFETIME: return FMT("'" << m_data.as_IString().c_str());
case TOK_INTEGER:
if( m_data.as_Integer().m_datatype == CORETYPE_ANY ) {
return FMT(m_data.as_Integer().m_intval);
}
else {
return FMT(m_data.as_Integer().m_intval << "_" << m_data.as_Integer().m_datatype);
}
case TOK_CHAR: return FMT("'\\u{"<< ::std::hex << m_data.as_Integer().m_intval << "}");
case TOK_FLOAT:
if( m_data.as_Float().m_datatype == CORETYPE_ANY ) {
return FMT(m_data.as_Float().m_floatval);
}
else {
return FMT(m_data.as_Float().m_floatval << "_" << m_data.as_Float().m_datatype);
}
case TOK_STRING: return FMT("\"" << EscapedString(m_data.as_String()) << "\"");
case TOK_BYTESTRING:return FMT("b\"" << m_data.as_String() << "\"");
case TOK_HASH: 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_THINARROW_LEFT: 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_DOUBLE_DOT_EQUAL: 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";
case TOK_RWORD_MACRO: return "macro";
}
throw ParseError::BugCheck("Reached end of Token::to_str");
}
::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_LIFETIME:
if( tok.m_data.is_String() )
os << "\"" << EscapedString(tok.str()) << "\"";
break;
case TOK_INTEGER:
if( tok.m_data.is_Integer() )
os << ":" << tok.intval();
break;
case TOK_INTERPOLATED_TYPE:
os << ":" << *reinterpret_cast<TypeRef*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_PATTERN:
os << ":" << *reinterpret_cast<AST::Pattern*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_PATH:
os << ":" << *reinterpret_cast<AST::Path*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_EXPR:
os << ":" << *reinterpret_cast<const AST::ExprNode*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_STMT:
os << ":" << *reinterpret_cast<const AST::ExprNode*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_BLOCK:
os << ":" << *reinterpret_cast<const AST::ExprNode*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_META:
os << ":" << *reinterpret_cast<AST::Attribute*>(tok.m_data.as_Fragment());
break;
case TOK_INTERPOLATED_ITEM: {
const auto& named_item = *reinterpret_cast<const AST::Named<AST::Item>*>(tok.m_data.as_Fragment());
os << ":" << named_item.data.tag_str() << "(" << named_item.name << ")";
} break;
default:
break;
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const Position& p)
{
return os << ::std::dec << p.filename << ":" << p.line;
}
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