示例#1
0
        private bool InternalCompile(string source, [NotNullWhen(true)] out CompiledProgram?program)
#endif
        {
            Functions.Clear();
            Variables.Clear();
            Literals.Clear();
            Lexer.Reset();
            Writer.Reset();

            InHeader        = true;
            CurrentFunction = null;
            Errors.Clear();

            program = null;

            // Add intrinsic functions to function collection
            foreach (var function in IntrinsicFunctions.Values)
            {
                Functions.Add(function.Name, function);
            }
            // Add intrinsic variables to variable collection
            foreach (var pair in IntrinsicVariables.GetKeyValuePairs())
            {
                Variables.Add(pair.Key, pair.Value);
            }
            // Add internal functions and variables
            if (EnableInternalFunctions)
            {
                InternalFunctions.AddInternalFunctionsAndVariables(Functions, Variables);
            }

            try
            {
                // Prepare to parse source code
                Lexer.Reset(source);

                // Write bytecodes to call function main.
                // Also causes error if main function is not defined
                Writer.Write(ByteCode.ExecFunction, GetFunctionId(Function.Main));
                // Parse statements
                while (ParseStatement())
                {
                    ;
                }
                // Verify end of file
                Token token = Lexer.GetNext();
                if (token.Type != TokenType.EndOfFile)
                {
                    Error(ErrorCode.UnexpectedToken, token);
                }
                // Check for undefined functions
                foreach (var funcInfo in Functions.GetKeyValuePairs())
                {
                    if (funcInfo.Value == null)
                    {
                        if (funcInfo.Key.Equals(Function.Main, StringComparison.CurrentCultureIgnoreCase))
                        {
                            Error(ErrorCode.MainNotDefined, Function.Main.MakeQuoted());
                        }
                        else
                        {
                            Error(ErrorCode.FunctionNotDefined, funcInfo.Key.MakeQuoted());
                        }
                    }
                }
            }
            catch (TooManyErrorsException)
            {
                // Already handled
            }
            catch (Exception ex)
            {
                Error(ErrorCode.InternalError, ex.Message, ErrorLevel.FatalError);
            }
            // Done if compile failed
            if (Errors.Count > 0)
            {
                return(false);
            }

            // Implement logging
            if (CreateLogFile)
            {
                string?logFile = LogFile;
                if (logFile == null)
                {
                    if (SourceFile != null)
                    {
                        logFile = Path.ChangeExtension(SourceFile, "log");
                    }
                    else
                    {
                        throw new InvalidOperationException("Unable to create log file : LogFile must be set when no source file name is provided.");
                    }
                }
                Writer.WriteLogFile(source, logFile, SourceFile);
            }

            // Return compiled data
            program = new CompiledProgram(Writer.GetBytecodes(),
                                          Functions.Values.Select(f =>
                                                                  (f is CompileTimeUserFunction userFunction) ? new UserFunction(userFunction) : f).ToArray(),
                                          Variables.Values.ToArray(),
                                          Literals.ToArray(),
                                          EnableLineNumbers ? Writer.GetLineNumbers() : null);
            return(true);
        }
示例#2
0
文件: Compiler.cs 项目: battyone/Silk
        public bool Compile(string path, out CompiledProgram program)
        {
            Functions       = new OrderedDictionary <string, Function>(StringComparer.OrdinalIgnoreCase);
            Variables       = new OrderedDictionary <string, Variable>(StringComparer.OrdinalIgnoreCase);
            Literals        = new List <Variable>();
            Lexer           = new LexicalAnalyzer(this);
            Lexer.Error    += Lexer_Error;
            Writer          = new ByteCodeWriter(Lexer);
            InHeader        = true;
            CurrentFunction = null;
            Errors          = new List <Error>();
            program         = null;

            // Add intrinsic functions to function collection
            foreach (var function in IntrinsicFunctions.Values)
            {
                Functions.Add(function.Name, function);
            }
            // Add intrinsic variables to variable collection
            foreach (var pair in IntrinsicVariables.GetKeyValuePairs())
            {
                Variables.Add(pair.Key, pair.Value);
            }
            // Add internal functions and variables
            if (EnableInternalFunctions)
            {
                InternalFunctions.AddInternalFunctionsAndVariables(Functions, Variables);
            }

            try
            {
                // Load file and initialize lexer
                Lexer.Reset(File.ReadAllText(path));
                // Write bytecodes to call function main.
                // Also causes error if main function is not defined
                Writer.Write(ByteCode.ExecFunction, GetFunctionId(Function.Main));
                // Parse statements
                while (ParseStatement())
                {
                    ;
                }
                // Verify end of file
                Token token = Lexer.GetNext();
                if (token.Type != TokenType.EndOfFile)
                {
                    Error(ErrorCode.UnexpectedToken, token);
                }
                // Check for undefined functions
                foreach (var funcInfo in Functions.GetKeyValuePairs())
                {
                    if (funcInfo.Value == null)
                    {
                        if (funcInfo.Key.Equals(Function.Main, StringComparison.CurrentCultureIgnoreCase))
                        {
                            Error(ErrorCode.MainNotDefined, Function.Main.MakeQuoted());
                        }
                        else
                        {
                            Error(ErrorCode.FunctionNotDefined, funcInfo.Key.MakeQuoted());
                        }
                    }
                }
            }
            catch (TooManyErrorsException)
            {
                // Already handled
            }
            catch (Exception ex)
            {
                Error(ErrorCode.InternalError, ex.Message, ErrorLevel.FatalError);
            }
            // Done if compile failed
            if (Errors.Count > 0)
            {
                return(false);
            }
            // Implement logging
            if (CreateLogFile)
            {
                Writer.WriteLogFile(path, Path.ChangeExtension(path, "log"));
            }
            // Return compiled data
            program = new CompiledProgram
            {
                ByteCodes = Writer.GetBytecodes(),
                Functions = Functions.Values.Select(f =>
                                                    (f is CompileTimeUserFunction userFunction) ? new UserFunction(userFunction) : f).ToArray(),
                Variables   = Variables.Values.ToArray(),
                Literals    = Literals.ToArray(),
                LineNumbers = EnableLineNumbers ? Writer.GetLineNumbers() : null,
            };
            return(true);
        }