示例#1
0
        void ALELA()
        {
            List <AST> liste = new List <AST>(); List <AST> elist = new List <AST>();
            AST        e; SymDeclaring e1 = null; AST idval;

            DECL(out e);
            liste.Add(e);
            while (StartOf(1))
            {
                DECL(out e);
                liste.Add(e);
            }
            Expect(8);
            BLOCK(out elist);
            liste.Add(new ProgSetup(elist));
            Expect(9);
            BLOCK(out elist);
            liste.Add(new ProgLoop(elist));
            while (StartOf(1))
            {
                DCL(out e1, out idval);
                FUNCDECL(out e, e1);
                liste.Add(e);
            }
            ProgramAST = new Prog(liste);
        }
示例#2
0
        void FUNCDECL(out AST eo, SymDeclaring e1)
        {
            AST e = null; AST rv = null; SymDeclaring e11; List <SymDeclaring> e2 = new List <SymDeclaring>();  List <AST> e3 = new List <AST>();

            Expect(17);
            if (StartOf(1))
            {
                TYPE(out e11);
                Expect(3);
                e11.id = t.val; e2.Add(e11);
                while (la.kind == 14)
                {
                    Get();
                    TYPE(out e11);
                    Expect(3);
                    e11.id = t.val;  e2.Add(e11);
                }
            }
            Expect(18);
            Expect(10);
            while (StartOf(2))
            {
                STMT(out e);
                e3.Add(e);
            }
            if (la.kind == 28)
            {
                Get();
                EXPR(out rv);
                Expect(11);
            }
            Expect(13);
            eo = new FuncDecl(e1, e2, e3, rv);
        }
示例#3
0
文件: AST.cs 项目: mkju19/P4
 public FuncDecl(SymDeclaring Declaring, List <SymDeclaring> Declarings, List <AST> Statments, AST ReturnValue)
 {
     declaring   = Declaring;
     declarings  = Declarings;
     statments   = Statments;
     returnValue = ReturnValue;
 }
示例#4
0
        void TYPE(out SymDeclaring e)
        {
            e = null; SymDeclaring lt = null;
            switch (la.kind)
            {
            case 43: {
                Get();
                e = new VoidDcl();
                break;
            }

            case 44: {
                Get();
                e = new IntDcl();
                break;
            }

            case 45: {
                Get();
                e = new FloatDcl();
                break;
            }

            case 46: {
                Get();
                e = new StringDcl();
                break;
            }

            case 47: {
                Get();
                e = new BooleanDcl();
                break;
            }

            case 48: {
                Get();
                e = new StructDcl();
                break;
            }

            case 49: {
                Get();
                Expect(36);
                TYPE(out lt);
                Expect(34);
                e = new ListDcl(lt);
                break;
            }

            default: SynErr(52); break;
            }
        }
示例#5
0
文件: Visitor.cs 项目: mkju19/P4
 public abstract void Visit(SymDeclaring n);
示例#6
0
 void DCL(out SymDeclaring e, out AST idval)
 {
     TYPE(out e);
     Expect(3);
     idval = new SymReferencing(t.val); e.id = t.val;
 }
示例#7
0
文件: AST.cs 项目: mkju19/P4
 public Decl(SymDeclaring Declaring, AST Assigning)
 {
     declaring = Declaring;
     assigning = Assigning;
 }
示例#8
0
文件: AST.cs 项目: mkju19/P4
 public ListDcl(string i, SymDeclaring ListType)
 {
     id = i; listType = ListType;
 }
示例#9
0
文件: AST.cs 项目: mkju19/P4
 public ListDcl(SymDeclaring ListType)
 {
     listType = ListType;
 }