Examples with Expression org.beetl.core.statement.Expression used on opensource projects

Example 11 with Expression

use of org.beetl.core.statement.Expression in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseWhile.

protected WhileStatement parseWhile(WhileStContext wc) {
    pbCtx.enterBlock();
    // break，continue语句到此为止
    pbCtx.current.canStopContinueBreakFlag = true;
    ExpressionContext condtionCtx = wc.parExpression().expression();
    StatementContext bodyCtx = wc.statement();
    Expression condtion = this.parseExpress(condtionCtx);
    Statement body = this.parseStatment(bodyCtx);
    WhileStatement whileStat = new WhileStatement(condtion, body, this.getBTToken(wc.getStart()));
    pbCtx.exitBlock();
    return whileStat;
}

Example 12 with Expression

use of org.beetl.core.statement.Expression in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseSafeOutput.

protected Expression parseSafeOutput(Safe_outputContext soctx) {
    Expression safeExp = null;
    List list = soctx.children;
    if (list.size() == 1) {
        safeExp = null;
    } else {
        // just xxx!exp
        Safe_allow_expContext allowExp = (Safe_allow_expContext) list.get(1);
        if (allowExp.literal() != null) {
            safeExp = this.parseLiteralExpress(allowExp.literal());
        } else if (allowExp.nativeCall() != null) {
            safeExp = this.parseNativeCallExpression(allowExp.nativeCall());
        } else if (allowExp.functionCall() != null) {
            safeExp = this.parseFunExp(allowExp.functionCall());
        } else if (allowExp.expression() != null) {
            safeExp = this.parseExpress(allowExp.expression());
        } else if (allowExp.varRef() != null) {
            safeExp = this.parseVarRefExpression(allowExp.varRef());
        }
    }
    return safeExp;
}

Example 13 with Expression

use of org.beetl.core.statement.Expression in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseMuldivmodExpression.

protected ArthExpression parseMuldivmodExpression(MuldivmodExpContext ctx) {
    Expression a = this.parseExpress(ctx.expression(0));
    Expression b = this.parseExpress(ctx.expression(1));
    TerminalNode tn = (TerminalNode) ctx.children.get(1);
    short mode = 0;
    if (ctx.MUlTIP() != null) {
        mode = ArthExpression.MUL;
    } else if (ctx.DIV() != null) {
        mode = ArthExpression.DIV;
    } else if (ctx.MOD() != null) {
        mode = ArthExpression.MOD;
    }
    return new ArthExpression(a, b, mode, this.getBTToken(tn.getSymbol()));
}

Example 14 with Expression

use of org.beetl.core.statement.Expression in project beetl2.0 by javamonkey.

the class VarAttributeNodeListener method onEvent.

@Override
public Object onEvent(Event e) {
    Stack stack = (Stack) e.getEventTaget();
    Object o = stack.peek();
    if (o instanceof VarRef) {
        VarRef ref = (VarRef) o;
        VarAttribute[] attrs = ref.attributes;
        for (int i = 0; i < attrs.length; i++) {
            GroupTemplate gt = (GroupTemplate) ((Map) stack.get(0)).get("groupTemplate");
            VarAttribute attr = attrs[i];
            if (attr.getClass() == VarAttribute.class) {
                Type type = attr.type;
                String name = attr.token != null ? attr.token.text : null;
                // 换成速度较快的属性访问类
                try {
                    AttributeAccess aa = gt.getAttributeAccessFactory().buildFiledAccessor(type.cls, name, gt);
                    attr.aa = aa;
                } catch (BeetlException ex) {
                    ex.pushToken(attr.token);
                    throw ex;
                }
            } else if (attr.getClass() == VarSquareAttribute.class) {
                Type type = attr.type;
                Class c = type.cls;
                if (Map.class.isAssignableFrom(c)) {
                    attr.setAA(gt.getAttributeAccessFactory().getMapAA());
                } else if (List.class.isAssignableFrom(c) || Set.class.isAssignableFrom(c)) {
                    attr.setAA(gt.getAttributeAccessFactory().getListAA());
                } else if (c.isArray()) {
                    attr.setAA(gt.getAttributeAccessFactory().getArrayAA());
                } else {
                    Expression exp = ((VarSquareAttribute) attr).exp;
                    if (exp instanceof Literal) {
                        Literal literal = (Literal) exp;
                        if (literal.obj instanceof String) {
                            try {
                                String attributeName = (String) literal.obj;
                                AttributeAccess aa = gt.getAttributeAccessFactory().buildFiledAccessor(c, attributeName, gt);
                                ref.attributes[i] = new VarSquareAttribute2((VarSquareAttribute) attrs[i], attributeName, aa);
                            } catch (BeetlException ex) {
                                ex.pushToken(attr.token);
                                throw ex;
                            }
                        }
                    }
                }
            } else if (attr.getClass() == VarVirtualAttribute.class) {
                // 对虚拟属性~size做优化
                if (attr.token.text.equals("size")) {
                    // 优化
                    Class c = attr.type.cls;
                    if (Map.class.isAssignableFrom(c)) {
                        ref.attributes[i] = new MapSizeVirtualAttribute((VarVirtualAttribute) attr);
                    } else if (Collection.class.isAssignableFrom(c)) {
                        ref.attributes[i] = new CollectionSizeVirtualAttribute((VarVirtualAttribute) attr);
                    } else if (c.isArray()) {
                        ref.attributes[i] = new ArraySizeVirtualAttribute((VarVirtualAttribute) attr);
                    }
                }
            }
        }
    }
    return null;
}

Example 15 with Expression

use of org.beetl.core.statement.Expression in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseVarAttribute.

protected VarAttribute[] parseVarAttribute(List<VarAttributeContext> list) {
    List<VarAttribute> listVarAttr = new ArrayList<VarAttribute>();
    for (VarAttributeContext vac : list) {
        if (vac instanceof VarAttributeGeneralContext) {
            VarAttributeGeneralContext zf = (VarAttributeGeneralContext) vac;
            VarAttribute attr = new VarAttribute(this.getBTToken(zf.Identifier().getSymbol()));
            listVarAttr.add(attr);
            attr.setAA(ObjectAA.defaultObjectAA());
        } else if (vac instanceof VarAttributeArrayOrMapContext) {
            VarAttributeArrayOrMapContext zf = (VarAttributeArrayOrMapContext) vac;
            Expression exp = this.parseExpress(zf.expression());
            VarSquareAttribute attr = new VarSquareAttribute(exp, this.getBTToken("[]", exp.token.line));
            attr.setAA(ObjectAA.defaultObjectAA());
            listVarAttr.add(attr);
        } else if (vac instanceof VarAttributeVirtualContext) {
            VarAttributeVirtualContext zf = (VarAttributeVirtualContext) vac;
            VarVirtualAttribute attr = new VarVirtualAttribute(this.getBTToken(zf.Identifier().getSymbol()));
            listVarAttr.add(attr);
        }
    }
    return listVarAttr.toArray(new VarAttribute[0]);
}