示例#1
0
        protected override void DoAction(int action)
        {
            switch (action)
            {
            case 2: // progr -> block
            { root = ValueStack[ValueStack.Depth - 1].blVal; }
            break;

            case 3: // stlist -> statement
            {
                CurrentSemanticValue.blVal = new BlockNode(ValueStack[ValueStack.Depth - 1].stVal);
            }
            break;

            case 4: // stlist -> stlist, SEMICOLON, statement
            {
                ValueStack[ValueStack.Depth - 3].blVal.Add(ValueStack[ValueStack.Depth - 1].stVal);
                CurrentSemanticValue.blVal = ValueStack[ValueStack.Depth - 3].blVal;
            }
            break;

            case 5: // statement -> assign
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 6: // statement -> block
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].blVal; }
            break;

            case 7: // statement -> cycle
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 8: // statement -> while
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 9: // statement -> repeat
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 10: // statement -> for
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 11: // statement -> write
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 12: // statement -> if
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 13: // statement -> var
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 14: // ident -> ID
            {
                if (!InDefSect)
                {
                    if (SymbolTable.vars.ContainsKey(ValueStack[ValueStack.Depth - 1].sVal))
                    {
                        throw new Exception("(" + LocationStack[LocationStack.Depth - 1].StartLine + "," + LocationStack[LocationStack.Depth - 1].StartColumn + "): ѕеременна¤ " + ValueStack[ValueStack.Depth - 1].sVal + " уже определена");
                    }
                }
                CurrentSemanticValue.eVal = new IdNode(ValueStack[ValueStack.Depth - 1].sVal);
            }
            break;

            case 15: // assign -> ident, ASSIGN, expr
            { CurrentSemanticValue.stVal = new AssignNode(ValueStack[ValueStack.Depth - 3].eVal as IdNode, ValueStack[ValueStack.Depth - 1].eVal); }
            break;

            case 16: // block -> BEGIN, stlist, END
            { CurrentSemanticValue.blVal = ValueStack[ValueStack.Depth - 2].blVal; }
            break;

            case 17: // cycle -> CYCLE, expr, statement
            { CurrentSemanticValue.stVal = new CycleNode(ValueStack[ValueStack.Depth - 2].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 18: // while -> WHILE, expr, DO, statement
            { CurrentSemanticValue.stVal = new WhileNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 19: // repeat -> REPEAT, stlist, UNTIL, expr
            { CurrentSemanticValue.stVal = new RepeatNode(ValueStack[ValueStack.Depth - 3].blVal, ValueStack[ValueStack.Depth - 1].eVal); }
            break;

            case 20: // for -> FOR, ident, ASSIGN, expr, TO, expr, DO, statement
            { CurrentSemanticValue.stVal = new ForNode(ValueStack[ValueStack.Depth - 7].eVal as IdNode, ValueStack[ValueStack.Depth - 5].eVal, ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 21: // write -> WRITE, LEFT_BRACKET, expr, RIGHT_BRACKET
            { CurrentSemanticValue.stVal = new WriteNode(ValueStack[ValueStack.Depth - 2].eVal); }
            break;

            case 22: // if -> IF, expr, THEN, statement, ELSE, statement
            { CurrentSemanticValue.stVal = new IfNode(ValueStack[ValueStack.Depth - 5].eVal, ValueStack[ValueStack.Depth - 3].stVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 23: // if -> IF, expr, THEN, statement
            { CurrentSemanticValue.stVal = new IfNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 24: // varlist -> ident
            { CurrentSemanticValue.stVal = new VarDefNode(ValueStack[ValueStack.Depth - 1].eVal as IdNode); }
            break;

            case 25: // varlist -> varlist, COMMA, ident
            {
                (ValueStack[ValueStack.Depth - 3].stVal as VarDefNode).Add(ValueStack[ValueStack.Depth - 1].eVal as IdNode);
                CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 3].stVal;
            }
            break;

            case 26: // Anon@1 -> /* empty */
            { InDefSect = true; }
            break;

            case 27: // var -> VAR, Anon@1, varlist, SEMICOLON
            {
                foreach (var v in (ValueStack[ValueStack.Depth - 2].stVal as VarDefNode).Ids)
                {
                    SymbolTable.NewVarDef(v.Name, type.tint);
                }
                InDefSect = false;
            }
            break;

            case 28: // expr -> expr, PLUS, T
            { CurrentSemanticValue.eVal = new BinaryNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '+'); }
            break;

            case 29: // expr -> expr, MINUS, T
            { CurrentSemanticValue.eVal = new BinaryNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '-'); }
            break;

            case 30: // expr -> T
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal; }
            break;

            case 31: // T -> T, MULT, F
            { CurrentSemanticValue.eVal = new BinaryNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '*'); }
            break;

            case 32: // T -> T, DIV, F
            { CurrentSemanticValue.eVal = new BinaryNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '/'); }
            break;

            case 33: // T -> F
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal; }
            break;

            case 34: // F -> ident
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal as IdNode; }
            break;

            case 35: // F -> INUM
            { CurrentSemanticValue.eVal = new IntNumNode(ValueStack[ValueStack.Depth - 1].iVal); }
            break;

            case 36: // F -> LEFT_BRACKET, expr, RIGHT_BRACKET
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 2].eVal; }
            break;
            }
        }
示例#2
0
        protected override void DoAction(int action)
        {
#pragma warning disable 162, 1522
            switch (action)
            {
            case 2: // progr -> block
            { root = ValueStack[ValueStack.Depth - 1].blVal; }
            break;

            case 3: // stlist -> statement
            {
                CurrentSemanticValue.blVal = new BlockNode(ValueStack[ValueStack.Depth - 1].stVal);
            }
            break;

            case 4: // stlist -> stlist, SEMICOLON, statement
            {
                ValueStack[ValueStack.Depth - 3].blVal.Add(ValueStack[ValueStack.Depth - 1].stVal);
                CurrentSemanticValue.blVal = ValueStack[ValueStack.Depth - 3].blVal;
            }
            break;

            case 5: // statement -> assign
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 6: // statement -> block
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].blVal; }
            break;

            case 7: // statement -> cycle
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 8: // statement -> write
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 9: // statement -> var
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 10: // statement -> empty
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 11: // statement -> if
            { CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 1].stVal; }
            break;

            case 12: // empty -> /* empty */
            { CurrentSemanticValue.stVal = new EmptyNode(); }
            break;

            case 13: // ident -> ID
            {
                if (!InDefSect)
                {
                    if (!SymbolTable.vars.ContainsKey(ValueStack[ValueStack.Depth - 1].sVal))
                    {
                        throw new Exception("(" + LocationStack[LocationStack.Depth - 1].StartLine + "," + LocationStack[LocationStack.Depth - 1].StartColumn + "): Ïåðåìåííàÿ " + ValueStack[ValueStack.Depth - 1].sVal + " íå îïèñàíà");
                    }
                }
                CurrentSemanticValue.eVal = new IdNode(ValueStack[ValueStack.Depth - 1].sVal);
            }
            break;

            case 14: // assign -> ident, ASSIGN, expr
            { CurrentSemanticValue.stVal = new AssignNode(ValueStack[ValueStack.Depth - 3].eVal as IdNode, ValueStack[ValueStack.Depth - 1].eVal); }
            break;

            case 15: // expr -> expr, PLUS, T
            { CurrentSemanticValue.eVal = new BinOpNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '+'); }
            break;

            case 16: // expr -> expr, MINUS, T
            { CurrentSemanticValue.eVal = new BinOpNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '-'); }
            break;

            case 17: // expr -> T
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal; }
            break;

            case 18: // T -> T, MULT, F
            { CurrentSemanticValue.eVal = new BinOpNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '*'); }
            break;

            case 19: // T -> T, DIVIDE, F
            { CurrentSemanticValue.eVal = new BinOpNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '/'); }
            break;

            case 20: // T -> T, MOD, F
            { CurrentSemanticValue.eVal = new BinOpNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].eVal, '%'); }
            break;

            case 21: // T -> F
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal; }
            break;

            case 22: // F -> ident
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 1].eVal as IdNode; }
            break;

            case 23: // F -> INUM
            { CurrentSemanticValue.eVal = new IntNumNode(ValueStack[ValueStack.Depth - 1].iVal); }
            break;

            case 24: // F -> LPAREN, expr, RPAREN
            { CurrentSemanticValue.eVal = ValueStack[ValueStack.Depth - 2].eVal; }
            break;

            case 25: // block -> BEGIN, stlist, END
            { CurrentSemanticValue.blVal = ValueStack[ValueStack.Depth - 2].blVal; }
            break;

            case 26: // cycle -> CYCLE, expr, statement
            { CurrentSemanticValue.stVal = new CycleNode(ValueStack[ValueStack.Depth - 2].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 27: // write -> WRITE, LPAREN, expr, RPAREN
            { CurrentSemanticValue.stVal = new WriteNode(ValueStack[ValueStack.Depth - 2].eVal); }
            break;

            case 28: // Anon@1 -> /* empty */
            { InDefSect = true; }
            break;

            case 29: // var -> VAR, Anon@1, varlist
            {
                foreach (var v in (ValueStack[ValueStack.Depth - 1].stVal as VarDefNode).vars)
                {
                    SymbolTable.NewVarDef(v.Name, type.tint);
                }
                InDefSect = false;
            }
            break;

            case 30: // varlist -> ident
            {
                CurrentSemanticValue.stVal = new VarDefNode(ValueStack[ValueStack.Depth - 1].eVal as IdNode);
            }
            break;

            case 31: // varlist -> varlist, COLUMN, ident
            {
                (ValueStack[ValueStack.Depth - 3].stVal as VarDefNode).Add(ValueStack[ValueStack.Depth - 1].eVal as IdNode);
                CurrentSemanticValue.stVal = ValueStack[ValueStack.Depth - 3].stVal;
            }
            break;

            case 32: // if -> IF, expr, THEN, statement
            { CurrentSemanticValue.stVal = new IfNode(ValueStack[ValueStack.Depth - 3].eVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;

            case 33: // if -> IF, expr, THEN, statement, ELSE, statement
            { CurrentSemanticValue.stVal = new IfNode(ValueStack[ValueStack.Depth - 5].eVal, ValueStack[ValueStack.Depth - 3].stVal, ValueStack[ValueStack.Depth - 1].stVal); }
            break;
            }
#pragma warning restore 162, 1522
        }