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C# SymbolTable.Find方法代码示例

本文整理汇总了C#中SymbolTable.Find方法的典型用法代码示例。如果您正苦于以下问题:C# SymbolTable.Find方法的具体用法?C# SymbolTable.Find怎么用?C# SymbolTable.Find使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在SymbolTable的用法示例。


在下文中一共展示了SymbolTable.Find方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: NTF_Factor2

        // <factor2> ::= <indicestar>
        //             | ( <aparams> )
        protected bool NTF_Factor2(int p, SemanticInfo si)
        {
            bool error = SkipErrors(p, Lexer.Token.TokenType.OpenSquareBracket, Lexer.Token.TokenType.Multiplicative,
                Lexer.Token.TokenType.Additive, Lexer.Token.TokenType.Comma, Lexer.Token.TokenType.CloseBracket,
                Lexer.Token.TokenType.Comparison, Lexer.Token.TokenType.Semicolon, Lexer.Token.TokenType.OpenBracket);

            // first(<factor2>.1)=first(<indicestar>)+follow(<factor2>)
            // =[+multop+addop+,+)+;
            if (lookahead.Type == Lexer.Token.TokenType.OpenSquareBracket || lookahead.Type == Lexer.Token.TokenType.Multiplicative
                || lookahead.Type == Lexer.Token.TokenType.Additive || lookahead.Type == Lexer.Token.TokenType.Comma
                || lookahead.Type == Lexer.Token.TokenType.CloseBracket || lookahead.Type == Lexer.Token.TokenType.Comparison
                || lookahead.Type == Lexer.Token.TokenType.Semicolon)
            {
                error |= !NTF_IndiceStar(p, si);

                if (p == 2)
                {
                    SymbolTable st = CurrentScope;
                    SymbolTable.Information info;

                    si.Offset = 0;

                    foreach (SemanticInfo.ParameterInfo pi in si.Parameters)
                    {
                        info = st.Find(pi.Name, true);
                        if (info == null || info.Kind != SymbolTable.Information.EKind.Variable)
                        {
                            SemanticErrorVariableNotFound(pi.Name);
                            return false;
                        }

                        si.Offset += (int)info.Properties["variable_offset"];

                        info = Global.Find(info.Properties["variable_type"] as string, false);
                        if (info == null || info.Kind != SymbolTable.Information.EKind.Class)
                        {
                            SemanticErrorWrongType(pi.Name);
                            return false;
                        }

                        st = info.Properties["class_symtable"] as SymbolTable;
                    }

                    info = st.Find(si.Name, false);
                    if (info == null || info.Kind != SymbolTable.Information.EKind.Variable)
                    {
                        // fall through if it's not qualified and i'm in a class
                        if (si.Parameters.Count == 0 && CurrentScope != Global)
                        {
                            info = CurrentScope.Parent.Find(si.Name, false);
                            if (info == null || info.Kind != SymbolTable.Information.EKind.Variable)
                            {
                                SemanticErrorFunctionNotFound(si.Name);
                                return false;
                            }
                            else
                            {
                                // copy from r12+info.offset into temp variables
                                int tmp = CompilerStack.Peek().RequestTemp((int)info.Properties["variable_size"]);
                                for (int k = 0; k < (int)info.Properties["variable_size"]; k += 4)
                                {
                                    si.Code.Append("addi r2,r12," +
                                        (si.Offset + (int)info.Properties["variable_offset"] + k) + "\nlw r1,stack(r2)\n" +
                                        "addi r2,r14," + (tmp + k) + "\nsw stack(r2),r1\n");
                                }

                                si.Offset = tmp;
                                si.Type = info.Properties["variable_type"] as string;

                                return error;
                            }
                        }
                        else
                        {
                            SemanticErrorFunctionNotFound(si.Name);
                            return false;
                        }
                    }

                    si.Offset += (int)info.Properties["variable_offset"];
                    si.Type = (string)info.Properties["variable_type"];
                }

                if (!error && p == 1)
                    Log(LogType.Parse, "<factor2> ::= <indicestar>");
            }
            else if (lookahead.Type == Lexer.Token.TokenType.OpenBracket)
            {
                error |= !Match(p, Lexer.Token.TokenType.OpenBracket);
                SemanticInfo si2 = new SemanticInfo();
                error |= !NTF_AParams(p, si2);
                if (p == 2)
                {
                    // this is a function call. check the symbol table for the parameters
                    // and see if they are all ok for starters
                    // resolve the function call
                    SymbolTable st = CurrentScope;
                    SymbolTable.Information info;
//.........这里部分代码省略.........
开发者ID:myblindy,项目名称:jc,代码行数:101,代码来源:Parser.cs


注:本文中的SymbolTable.Find方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。