// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include "Token.h"
#include "Literals.h"

using namespace CPlusPlus;

const char *token_names[] = {
    (""),
    ("<error>"),

    // comments
    ("<C++ comment>"),
    ("<C++ doxy comment>"),
    ("<comment>"),
    ("<doxy comment>"),

    ("<identifier>"),

    // literals
    ("<numeric literal>"),
    ("<char literal>"),
    ("<wide char literal>"),
    ("<utf16 char literal>"),
    ("<utf32 char literal>"),
    ("<string literal>"),
    ("<wide string literal>"),
    ("<utf8 string literal>"),
    ("<utf16 string literal>"),
    ("<utf32 string literal>"),
    ("<raw string literal>"),
    ("<raw wide string literal>"),
    ("<raw utf8 string literal>"),
    ("<raw utf16 string literal>"),
    ("<raw utf32 string literal>"),
    ("<@string literal>"),
    ("<angle string literal>"),

    // punctuation
    (":"),
    ("::"),
    (","),
    (">"),
    ("<"),
    ("{"),
    ("["),
    ("("),
    ("}"),
    ("]"),
    (")"),
    (";"),

    // operators
    ("&"),
    ("&&"),
    ("&="),
    ("->"),
    ("->*"),
    ("^"),
    ("^="),
    ("/"),
    ("/="),
    ("."),
    ("..."),
    (".*"),
    ("="),
    ("=="),
    ("!"),
    ("!="),
    (">="),
    (">>"),
    (">>="),
    ("<="),
    ("<<"),
    ("<<="),
    ("<=>"),
    ("-"),
    ("-="),
    ("--"),
    ("%"),
    ("%="),
    ("|"),
    ("|="),
    ("||"),
    ("+"),
    ("+="),
    ("++"),
    ("#"),
    ("##"),
    ("?"),
    ("*"),
    ("*="),
    ("~"),
    ("~="),

    // keywords
    ("alignas"),
    ("alignof"),
    ("asm"),
    ("auto"),
    ("break"),
    ("case"),
    ("catch"),
    ("class"),
    ("co_await"),
    ("co_return"),
    ("co_yield"),
    ("concept"),
    ("const"),
    ("const_cast"),
    ("consteval"),
    ("constexpr"),
    ("constinit"),
    ("continue"),
    ("decltype"),
    ("default"),
    ("delete"),
    ("do"),
    ("dynamic_cast"),
    ("else"),
    ("enum"),
    ("explicit"),
    ("export"),
    ("extern"),
    ("false"),
    ("for"),
    ("friend"),
    ("goto"),
    ("if"),
    ("inline"),
    ("mutable"),
    ("namespace"),
    ("new"),
    ("noexcept"),
    ("nullptr"),
    ("operator"),
    ("private"),
    ("protected"),
    ("public"),
    ("register"),
    ("reinterpret_cast"),
    ("requires"),
    ("return"),
    ("sizeof"),
    ("static"),
    ("static_assert"),
    ("static_cast"),
    ("struct"),
    ("switch"),
    ("template"),
    ("this"),
    ("thread_local"),
    ("throw"),
    ("true"),
    ("try"),
    ("typedef"),
    ("typeid"),
    ("typename"),
    ("union"),
    ("using"),
    ("virtual"),
    ("volatile"),
    ("while"),

    // gnu
    ("__attribute__"),
    ("__thread"),
    ("__typeof__"),

    // msvc
    ("__declspec"),

    // objc @keywords
    ("@catch"),
    ("@class"),
    ("@compatibility_alias"),
    ("@defs"),
    ("@dynamic"),
    ("@encode"),
    ("@end"),
    ("@finally"),
    ("@implementation"),
    ("@interface"),
    ("@not_keyword"),
    ("@optional"),
    ("@package"),
    ("@private"),
    ("@property"),
    ("@protected"),
    ("@protocol"),
    ("@public"),
    ("@required"),
    ("@selector"),
    ("@synchronized"),
    ("@synthesize"),
    ("@throw"),
    ("@try"),

    // Primitive types
    ("bool"),
    ("char"),
    ("char8_t"),
    ("char16_t"),
    ("char32_t"),
    ("double"),
    ("float"),
    ("int"),
    ("long"),
    ("short"),
    ("signed"),
    ("unsigned"),
    ("void"),
    ("wchar_t"),

    // Qt keywords
    ("emit"),
    ("SIGNAL"),
    ("SLOT"),
    ("Q_SIGNAL"),
    ("Q_SLOT"),
    ("signals"),
    ("slots"),
    ("Q_FOREACH"),
    ("Q_D"),
    ("Q_Q"),
    ("Q_INVOKABLE"),
    ("Q_PROPERTY"),
    ("T_Q_PRIVATE_PROPERTY"),
    ("Q_INTERFACES"),
    ("Q_EMIT"),
    ("Q_ENUMS"),
    ("Q_FLAGS"),
    ("Q_PRIVATE_SLOT"),
    ("Q_DECLARE_INTERFACE"),
    ("Q_OBJECT"),
    ("Q_GADGET"),
};

void Token::reset()
{
    flags = 0;
    byteOffset = 0;
    utf16charOffset = 0;
    ptr = nullptr;
}

const char *Token::name(int kind)
{ return token_names[kind]; }

const char *Token::spell() const
{
    switch (f.kind) {
    case T_IDENTIFIER:
        return identifier->chars();

    case T_NUMERIC_LITERAL:
    case T_CHAR_LITERAL:
    case T_WIDE_CHAR_LITERAL:
    case T_UTF16_CHAR_LITERAL:
    case T_UTF32_CHAR_LITERAL:
    case T_STRING_LITERAL:
    case T_WIDE_STRING_LITERAL:
    case T_UTF8_STRING_LITERAL:
    case T_UTF16_STRING_LITERAL:
    case T_UTF32_STRING_LITERAL:
    case T_RAW_STRING_LITERAL:
    case T_RAW_WIDE_STRING_LITERAL:
    case T_RAW_UTF8_STRING_LITERAL:
    case T_RAW_UTF16_STRING_LITERAL:
    case T_RAW_UTF32_STRING_LITERAL:
    case T_AT_STRING_LITERAL:
    case T_ANGLE_STRING_LITERAL:
        return literal->chars();

    default:
        return token_names[f.kind];
    } // switch
}