Add code

2026-09-11 22:44:59 -04:00 · 2019-01-23 22:52:45 -05:00
parent 3f69ec7987
commit ad50a19057
103 changed files with 5734 additions and 1 deletions
@@ -0,0 +1,22 @@
+using System.Linq;
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class ArrayInitializerParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            var values = parser.ParseSeparatedBy(ScriptTokenType.Comma, (_, first) =>
+            {
+                if (parser.Match(ScriptTokenType.RightBrace))
+                    return null;
+
+                return parser.ParseExpression();
+            }).ToList();
+
+            parser.Take(ScriptTokenType.RightBrace);
+            return new ArrayInitializerExpression(token, parser.Previous, values);
+        }
+    }
+}
@@ -0,0 +1,23 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class BinaryOperatorParselet : IInfixParselet
+    {
+        private readonly bool _isRight;
+
+        public BinaryOperatorParselet(PrecedenceValue precedence, bool isRight)
+        {
+            _isRight = isRight;
+            Precedence = (int)precedence;
+        }
+
+        public int Precedence { get; private set; }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var right = parser.ParseExpression(Precedence - (_isRight ? 1 : 0));
+            return new BinaryOperatorExpression(token.Type, left, right);
+        }
+    }
+}
@@ -0,0 +1,19 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class BoolParselet : IPrefixParselet
+    {
+        private readonly bool _value;
+
+        public BoolParselet(bool value)
+        {
+            _value = value;
+        }
+
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            return new BoolExpression(token, _value);
+        }
+    }
+}
@@ -0,0 +1,25 @@
+using System.Linq;
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class CallParselet : IInfixParselet
+    {
+        public int Precedence { get { return (int)PrecedenceValue.Suffix; } }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var parameters = parser.ParseSeparatedBy(ScriptTokenType.Comma, (_, first) =>
+            {
+                if (first && parser.Match(ScriptTokenType.RightParen))
+                    return null;
+
+                return parser.ParseExpression();
+            }).ToList();
+
+            parser.Take(ScriptTokenType.RightParen);
+
+            return new CallExpression(parser.Previous, left, parameters);
+        }
+    }
+}
@@ -0,0 +1,15 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class FieldParselet : IInfixParselet
+    {
+        public int Precedence { get { return (int)PrecedenceValue.Suffix; } }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var name = parser.Take(ScriptTokenType.Identifier);
+            return new FieldExpression(left, name);
+        }
+    }
+}
@@ -0,0 +1,54 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class GroupParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            if (IsCast(parser))
+            {
+                var type = parser.ParseType();
+                parser.Take(ScriptTokenType.RightParen);
+                var value = parser.ParseExpression((int)PrecedenceValue.Cast - 1);
+                return new CastExpression(token, type, value);
+            }
+
+            var expression = parser.ParseExpression();
+            parser.Take(ScriptTokenType.RightParen);
+            return expression;
+        }
+
+        private static bool IsCast(ScriptParser parser)
+        {
+            var token = parser.Peek();
+            if (token.Type != ScriptTokenType.Identifier)
+                return false;
+
+            if (token.Contents == "resizeable")
+                return true;
+
+            var i = 1;
+            while (parser.Match(ScriptTokenType.Dot, i) && parser.Match(ScriptTokenType.Identifier, i + 1))
+            {
+                i += 2;
+            }
+
+            var next1Type = parser.Peek(i).Type;
+            var next2Type = parser.Peek(i + 1).Type;
+
+            return (next1Type == ScriptTokenType.RightParen && IsCastable(next2Type)) ||
+                   (next1Type == ScriptTokenType.LeftSquare && next2Type == ScriptTokenType.RightSquare);
+        }
+
+        private static bool IsCastable(ScriptTokenType token)
+        {
+            return token == ScriptTokenType.Identifier ||
+                   token == ScriptTokenType.Number ||
+                   token == ScriptTokenType.Null ||
+                   token == ScriptTokenType.LeftParen ||
+                   token == ScriptTokenType.SingleString ||
+                   token == ScriptTokenType.String;
+        }
+    }
+}
@@ -0,0 +1,86 @@
+using System.Linq;
+using System.Text;
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class HashParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            var str = parser.Take(ScriptTokenType.String);
+            var crc = (int)StringtoCrc(str.Contents);
+            var crcStr = "0x" + crc.ToString("X8");
+            return new NumberExpression(new ScriptToken(str, ScriptTokenType.Number, crcStr));
+        }
+
+        private static uint StringtoCrc(string input)
+        {
+            byte[] bytes = Encoding.ASCII.GetBytes(input.ToArray());
+            uint crc = 0xFFFFFFFF;
+
+            for (int i = 0; i < bytes.Length; ++i)
+            {
+                crc = _crcTable[(bytes[i] ^ (crc >> 24)) & 0x000000FF] ^ (crc << 8);
+            }
+
+            return ~crc;
+        }
+
+        private static uint[] _crcTable =
+        {
+            0x0000000,
+            0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B,
+            0x1A864DB2, 0x1E475005, 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6,
+            0x2B4BCB61, 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD,
+            0x4C11DB70, 0x48D0C6C7, 0x4593E01E, 0x4152FDA9, 0x5F15ADAC,
+            0x5BD4B01B, 0x569796C2, 0x52568B75, 0x6A1936C8, 0x6ED82B7F,
+            0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, 0x709F7B7A,
+            0x745E66CD, 0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039,
+            0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 0xBE2B5B58,
+            0xBAEA46EF, 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033,
+            0xA4AD16EA, 0xA06C0B5D, 0xD4326D90, 0xD0F37027, 0xDDB056FE,
+            0xD9714B49, 0xC7361B4C, 0xC3F706FB, 0xCEB42022, 0xCA753D95,
+            0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, 0xE13EF6F4,
+            0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 0x34867077, 0x30476DC0,
+            0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5,
+            0x2AC12072, 0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16,
+            0x018AEB13, 0x054BF6A4, 0x0808D07D, 0x0CC9CDCA, 0x7897AB07,
+            0x7C56B6B0, 0x71159069, 0x75D48DDE, 0x6B93DDDB, 0x6F52C06C,
+            0x6211E6B5, 0x66D0FB02, 0x5E9F46BF, 0x5A5E5B08, 0x571D7DD1,
+            0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA,
+            0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B,
+            0xBB60ADFC, 0xB6238B25, 0xB2E29692, 0x8AAD2B2F, 0x8E6C3698,
+            0x832F1041, 0x87EE0DF6, 0x99A95DF3, 0x9D684044, 0x902B669D,
+            0x94EA7B2A, 0xE0B41DE7, 0xE4750050, 0xE9362689, 0xEDF73B3E,
+            0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2, 0xC6BCF05F,
+            0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34,
+            0xDC3ABDED, 0xD8FBA05A, 0x690CE0EE, 0x6DCDFD59, 0x608EDB80,
+            0x644FC637, 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB,
+            0x4F040D56, 0x4BC510E1, 0x46863638, 0x42472B8F, 0x5C007B8A,
+            0x58C1663D, 0x558240E4, 0x51435D53, 0x251D3B9E, 0x21DC2629,
+            0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, 0x3F9B762C,
+            0x3B5A6B9B, 0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF,
+            0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 0xF12F560E,
+            0xF5EE4BB9, 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65,
+            0xEBA91BBC, 0xEF68060B, 0xD727BBB6, 0xD3E6A601, 0xDEA580D8,
+            0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, 0xCDA1F604, 0xC960EBB3,
+            0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, 0xAE3AFBA2,
+            0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 0x9B3660C6, 0x9FF77D71,
+            0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74,
+            0x857130C3, 0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640,
+            0x4E8EE645, 0x4A4FFBF2, 0x470CDD2B, 0x43CDC09C, 0x7B827D21,
+            0x7F436096, 0x7200464F, 0x76C15BF8, 0x68860BFD, 0x6C47164A,
+            0x61043093, 0x65C52D24, 0x119B4BE9, 0x155A565E, 0x18197087,
+            0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC,
+            0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D,
+            0x2056CD3A, 0x2D15EBE3, 0x29D4F654, 0xC5A92679, 0xC1683BCE,
+            0xCC2B1D17, 0xC8EA00A0, 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB,
+            0xDBEE767C, 0xE3A1CBC1, 0xE760D676, 0xEA23F0AF, 0xEEE2ED18,
+            0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4, 0x89B8FD09,
+            0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662,
+            0x933EB0BB, 0x97FFAD0C, 0xAFB010B1, 0xAB710D06, 0xA6322BDF,
+            0xA2F33668, 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4
+        };
+    }
+}
@@ -0,0 +1,12 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class IdentifierParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            return new IdentifierExpression(token);
+        }
+    }
+}
@@ -0,0 +1,18 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class IndexerParselet : IInfixParselet
+    {
+        public int Precedence { get { return (int)PrecedenceValue.Suffix; } }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var index = parser.ParseExpression();
+            
+            parser.Take(ScriptTokenType.RightSquare);
+
+            return new IndexerExpression(parser.Previous, left, index);
+        }
+    }
+}
@@ -0,0 +1,15 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class InstanceOfParselet : IInfixParselet
+    {
+        public int Precedence { get { return (int)PrecedenceValue.Relational; } }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var type = parser.ParseType();
+            return new InstanceOfExpression(parser.Previous, left, type);
+        }
+    }
+}
@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using System.Linq;
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class NewParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            var type = string.Join(".", parser.ParseSeparatedBy(ScriptTokenType.Dot, (_, first) => parser.Take(ScriptTokenType.Identifier).Contents));
+
+            if (type == "string")
+                type = "String";
+
+            var isArray = parser.Match(ScriptTokenType.LeftSquare);
+
+            parser.Take(isArray ? ScriptTokenType.LeftSquare : ScriptTokenType.LeftParen);
+
+            var parameters = parser.ParseSeparatedBy(ScriptTokenType.Comma, (_, first) =>
+            {
+                if (first && parser.Match(isArray ? ScriptTokenType.RightSquare : ScriptTokenType.RightParen))
+                    return null;
+
+                return parser.ParseExpression();
+            }).ToList();
+
+            parser.Take(isArray ? ScriptTokenType.RightSquare : ScriptTokenType.RightParen);
+
+            List<Expression> values = null;
+            if (isArray && parser.MatchAndTake(ScriptTokenType.LeftBrace))
+            {
+                values = parser.ParseSeparatedBy(ScriptTokenType.Comma, (_, first) =>
+                {
+                    if (parser.Match(ScriptTokenType.RightBrace))
+                        return null;
+
+                    return parser.ParseExpression();
+                }).ToList();
+
+                parser.MatchAndTake(ScriptTokenType.RightBrace);
+            }
+
+            int arrayDimensions = isArray ? 1 : 0;
+            if (isArray)
+            {
+                while (parser.Match(ScriptTokenType.LeftSquare) && parser.Match(ScriptTokenType.RightSquare, 1))
+                {
+                    parser.Take(ScriptTokenType.LeftSquare);
+                    parser.Take(ScriptTokenType.RightSquare);
+                    arrayDimensions++;
+                }
+            }
+
+            return new NewExpression(token, parser.Previous, type, arrayDimensions, parameters, values);
+        }
+    }
+}
@@ -0,0 +1,12 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class NullParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            return new NullExpression(token);
+        }
+    }
+}
@@ -0,0 +1,12 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class NumberParselet : IPrefixParselet
+    {
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            return new NumberExpression(token);
+        }
+    }
+}
@@ -0,0 +1,19 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class PostfixOperatorParselet : IInfixParselet
+    {
+        public PostfixOperatorParselet(PrecedenceValue precedence)
+        {
+            Precedence = (int)precedence;
+        }
+
+        public int Precedence { get; private set; }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            return new PostfixOperatorExpression(token, left);
+        }
+    }
+}
@@ -0,0 +1,20 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class PrefixOperatorParselet : IPrefixParselet
+    {
+        private readonly int _precedence;
+
+        public PrefixOperatorParselet(PrecedenceValue precedence)
+        {
+            _precedence = (int)precedence;
+        }
+
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            var right = parser.ParseExpression(_precedence);
+            return new PrefixOperatorExpression(token, right);
+        }
+    }
+}
@@ -0,0 +1,19 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class StringParselet : IPrefixParselet
+    {
+        private readonly bool _singleQuote;
+
+        public StringParselet(bool singleQuote)
+        {
+            _singleQuote = singleQuote;
+        }
+
+        public Expression Parse(ScriptParser parser, ScriptToken token)
+        {
+            return new StringExpression(token, _singleQuote);
+        }
+    }
+}
@@ -0,0 +1,18 @@
+using ScriptConverter.Ast.Expressions;
+
+namespace ScriptConverter.Parser.Parselets.Expressions
+{
+    class TernaryParselet : IInfixParselet
+    {
+        public int Precedence { get { return (int)PrecedenceValue.Ternary; } }
+
+        public Expression Parse(ScriptParser parser, Expression left, ScriptToken token)
+        {
+            var trueExpr = parser.ParseExpression();
+            parser.Take(ScriptTokenType.Colon);
+            var falseExpr = parser.ParseExpression();
+
+            return new TernaryExpression(left, trueExpr, falseExpr);
+        }
+    }
+}