Examples with BlockContext org.beetl.core.parser.BeetlParser.BlockContext used on opensource projects

Example 1 with BlockContext

use of org.beetl.core.parser.BeetlParser.BlockContext in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseTryCatch.

protected TryCatchStatement parseTryCatch(TryStContext tryStCtx) {
    BlockContext tryBlockCtx = tryStCtx.block(0);
    BlockStatement tryPart = (BlockStatement) this.parseBlock(tryBlockCtx.statement(), tryBlockCtx);
    BlockStatement catchPart = null;
    VarDefineNode errorNode = null;
    if (tryStCtx.Catch() != null) {
        this.pbCtx.enterBlock();
        if (tryStCtx.Identifier() != null) {
            Token errorToken = tryStCtx.Identifier().getSymbol();
            errorNode = new VarDefineNode(this.getBTToken(errorToken));
            this.pbCtx.addVarAndPostion(errorNode);
        }
        BlockContext catchBlockCtx = tryStCtx.block(1);
        catchPart = (BlockStatement) this.parseBlock(catchBlockCtx.statement(), catchBlockCtx);
        this.pbCtx.exitBlock();
    }
    TryCatchStatement statement = new TryCatchStatement(tryPart, catchPart, errorNode, this.getBTToken(tryStCtx.Try().getSymbol()));
    return statement;
}

Example 2 with BlockContext

use of org.beetl.core.parser.BeetlParser.BlockContext in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseAssign.

/**
 * 定义变量
 * @param amc
 * @return
 */
protected VarAssignStatement parseAssign(AssignMentContext amc) {
    VarAssignStatement vas = null;
    if (amc instanceof AssignGeneralInStContext) {
        AssignGeneralInStContext agc = (AssignGeneralInStContext) amc;
        ExpressionContext expCtx = agc.generalAssignExp().expression();
        Expression exp = parseExpress(expCtx);
        VarRefContext varRefCtx = agc.generalAssignExp().varRef();
        if (varRefCtx.children.size() == 1) {
            // var a=1;
            Token token = varRefCtx.Identifier().getSymbol();
            vas = new VarAssignStatement(exp, getBTToken(token));
        } else {
            // var a.b=1 since 2.7.0
            VarRef ref = this.parseVarRefInLeftExpression(varRefCtx);
            vas = new VarRefAssignStatement(exp, ref);
        }
        return vas;
    } else if (amc instanceof AssignIdContext) {
        AssignIdContext idCtx = (AssignIdContext) amc;
        vas = new VarAssignStatement(Literal.NULLLiteral, getBTToken(idCtx.Identifier().getSymbol()));
        return vas;
    } else if (amc instanceof AssignTemplateVarContext) {
        AssignTemplateVarContext templateVarCtx = (AssignTemplateVarContext) amc;
        BlockContext blockCtx = templateVarCtx.block();
        BlockStatement block = this.parseBlock(blockCtx.statement(), blockCtx);
        ContentBodyExpression bodyExp = new ContentBodyExpression(block, getBTToken(templateVarCtx.Identifier().getSymbol()));
        vas = new VarAssignStatement(bodyExp, getBTToken(templateVarCtx.Identifier().getSymbol()));
    } else {
        throw new RuntimeException("不支持 在 " + amc.start.getLine());
    }
    return vas;
}

Example 3 with BlockContext

use of org.beetl.core.parser.BeetlParser.BlockContext in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseAjax.

protected AjaxStatement parseAjax(AjaxStContext ajaxCtx) {
    GrammarToken token = null;
    String flag = "render";
    List<TerminalNode> nodes = ajaxCtx.Identifier();
    if (nodes.size() == 1) {
        token = this.getBTToken(nodes.get(0).getSymbol());
    } else {
        token = this.getBTToken(nodes.get(1).getSymbol());
        flag = nodes.get(0).getSymbol().getText();
        if (!(flag.equals("render") || flag.equals("norender"))) {
            BeetlException be = new BeetlException(BeetlException.AJAX_PROPERTY_ERROR, "expect render or norender ,but " + flag);
            be.pushToken(token);
            throw be;
        }
    }
    BlockContext blockCtx = ajaxCtx.block();
    BlockStatement block = (BlockStatement) this.parseBlock(blockCtx.statement(), blockCtx);
    AjaxStatement ajaxStat = new AjaxStatement(block, token, flag.equals("render"));
    if (this.data.ajaxs == null) {
        this.data.ajaxs = new HashMap<String, AjaxStatement>();
    }
    String anchor = ajaxStat.token.text;
    if (this.data.ajaxs.containsKey(anchor)) {
        GrammarToken lastToken = this.data.ajaxs.get(anchor).token;
        BeetlException ex = new BeetlException(BeetlException.AJAX_ALREADY_DEFINED, "已经在第" + lastToken.line + "行定义");
        ex.pushToken(token);
        throw ex;
    }
    this.data.ajaxs.put(anchor, ajaxStat);
    return ajaxStat;
}

Example 4 with BlockContext

use of org.beetl.core.parser.BeetlParser.BlockContext in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseTag.

protected TagStatement parseTag(FunctionTagCallContext fc) {
    String id = this.getID(fc.functionNs().Identifier());
    ExpressionListContext expListCtx = fc.expressionList();
    List<ExpressionContext> list = null;
    if (expListCtx != null) {
        list = fc.expressionList().expression();
    } else {
        list = Collections.EMPTY_LIST;
    }
    Expression[] expList = this.parseExpressionCtxList(list);
    if (id.equals("htmltagvar")) {
        int line = fc.functionNs().getStart().getLine();
        // 标签具有绑定变量功能
        Literal l = (Literal) expList[2];
        String varList = (String) l.obj;
        String[] vars = varList.split(",");
        // 定义的变量仅仅在标签体内可见
        this.pbCtx.enterBlock();
        VarDefineNode[] varDefine = new VarDefineNode[vars.length];
        for (int i = 0; i < vars.length; i++) {
            VarDefineNode varNode = new VarDefineNode(this.getBTToken(vars[i].trim(), line));
            this.pbCtx.addVarAndPostion(varNode);
            varDefine[i] = varNode;
        }
        BlockContext blockCtx = fc.block();
        Statement block = parseBlock(blockCtx.statement(), blockCtx);
        this.pbCtx.exitBlock();
        TagFactory tf = this.gt.getTagFactory(id);
        if (tf == null) {
            BeetlException ex = new BeetlException(BeetlException.TAG_NOT_FOUND);
            ex.pushToken(this.getBTToken(id, fc.functionNs().getStart().getLine()));
            throw ex;
        }
        TagStatement tag = new TagVarBindingStatement(id, expList, block, varDefine, this.getBTToken(id, line));
        return tag;
    } else {
        BlockContext blockCtx = fc.block();
        Statement block = parseBlock(blockCtx.statement(), blockCtx);
        TagFactory tf = this.gt.getTagFactory(id);
        if (tf == null) {
            BeetlException ex = new BeetlException(BeetlException.TAG_NOT_FOUND);
            ex.pushToken(this.getBTToken(id, fc.functionNs().getStart().getLine()));
            throw ex;
        }
        TagStatement tag = new TagStatement(id, expList, block, this.getBTToken(id, fc.functionNs().getStart().getLine()));
        return tag;
    }
}