Examples with OpDec cn.taketoday.expression.spel.ast.OpDec used on opensource projects

Example 1 with OpDec

use of cn.taketoday.expression.spel.ast.OpDec in project today-framework by TAKETODAY.

the class InternalSpelExpressionParser method eatPowerIncDecExpression.

// powerExpr  : unaryExpression (POWER^ unaryExpression)? (INC || DEC) ;
@Nullable
private SpelNodeImpl eatPowerIncDecExpression() {
    SpelNodeImpl expr = eatUnaryExpression();
    if (peekToken(TokenKind.POWER)) {
        // consume POWER
        Token t = takeToken();
        SpelNodeImpl rhExpr = eatUnaryExpression();
        checkRightOperand(t, rhExpr);
        return new OperatorPower(t.startPos, t.endPos, expr, rhExpr);
    }
    if (expr != null && peekToken(TokenKind.INC, TokenKind.DEC)) {
        // consume INC/DEC
        Token t = takeToken();
        if (t.kind == TokenKind.INC) {
            return new OpInc(t.startPos, t.endPos, true, expr);
        }
        return new OpDec(t.startPos, t.endPos, true, expr);
    }
    return expr;
}

Example 2 with OpDec

use of cn.taketoday.expression.spel.ast.OpDec in project today-framework by TAKETODAY.

the class InternalSpelExpressionParser method eatUnaryExpression.

// unaryExpression: (PLUS^ | MINUS^ | BANG^ | INC^ | DEC^) unaryExpression | primaryExpression ;
@Nullable
private SpelNodeImpl eatUnaryExpression() {
    if (peekToken(TokenKind.PLUS, TokenKind.MINUS, TokenKind.NOT)) {
        Token t = takeToken();
        SpelNodeImpl expr = eatUnaryExpression();
        Assert.state(expr != null, "No node");
        if (t.kind == TokenKind.NOT) {
            return new OperatorNot(t.startPos, t.endPos, expr);
        }
        if (t.kind == TokenKind.PLUS) {
            return new OpPlus(t.startPos, t.endPos, expr);
        }
        Assert.isTrue(t.kind == TokenKind.MINUS, "Minus token expected");
        return new OpMinus(t.startPos, t.endPos, expr);
    }
    if (peekToken(TokenKind.INC, TokenKind.DEC)) {
        Token t = takeToken();
        SpelNodeImpl expr = eatUnaryExpression();
        if (t.kind == TokenKind.INC) {
            return new OpInc(t.startPos, t.endPos, false, expr);
        }
        return new OpDec(t.startPos, t.endPos, false, expr);
    }
    return eatPrimaryExpression();
}

Example 3 with OpDec

use of cn.taketoday.expression.spel.ast.OpDec in project today-infrastructure by TAKETODAY.

the class InternalSpelExpressionParser method eatPowerIncDecExpression.

// powerExpr  : unaryExpression (POWER^ unaryExpression)? (INC || DEC) ;
@Nullable
private SpelNodeImpl eatPowerIncDecExpression() {
    SpelNodeImpl expr = eatUnaryExpression();
    if (peekToken(TokenKind.POWER)) {
        // consume POWER
        Token t = takeToken();
        SpelNodeImpl rhExpr = eatUnaryExpression();
        checkRightOperand(t, rhExpr);
        return new OperatorPower(t.startPos, t.endPos, expr, rhExpr);
    }
    if (expr != null && peekToken(TokenKind.INC, TokenKind.DEC)) {
        // consume INC/DEC
        Token t = takeToken();
        if (t.kind == TokenKind.INC) {
            return new OpInc(t.startPos, t.endPos, true, expr);
        }
        return new OpDec(t.startPos, t.endPos, true, expr);
    }
    return expr;
}

Example 4 with OpDec

use of cn.taketoday.expression.spel.ast.OpDec in project today-infrastructure by TAKETODAY.

the class InternalSpelExpressionParser method eatUnaryExpression.

// unaryExpression: (PLUS^ | MINUS^ | BANG^ | INC^ | DEC^) unaryExpression | primaryExpression ;
@Nullable
private SpelNodeImpl eatUnaryExpression() {
    if (peekToken(TokenKind.PLUS, TokenKind.MINUS, TokenKind.NOT)) {
        Token t = takeToken();
        SpelNodeImpl expr = eatUnaryExpression();
        Assert.state(expr != null, "No node");
        if (t.kind == TokenKind.NOT) {
            return new OperatorNot(t.startPos, t.endPos, expr);
        }
        if (t.kind == TokenKind.PLUS) {
            return new OpPlus(t.startPos, t.endPos, expr);
        }
        Assert.isTrue(t.kind == TokenKind.MINUS, "Minus token expected");
        return new OpMinus(t.startPos, t.endPos, expr);
    }
    if (peekToken(TokenKind.INC, TokenKind.DEC)) {
        Token t = takeToken();
        SpelNodeImpl expr = eatUnaryExpression();
        if (t.kind == TokenKind.INC) {
            return new OpInc(t.startPos, t.endPos, false, expr);
        }
        return new OpDec(t.startPos, t.endPos, false, expr);
    }
    return eatPrimaryExpression();
}