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Example 1 with TagVarBindingStatement

use of org.beetl.core.statement.TagVarBindingStatement 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;
    }
}
Also used : BeetlException(org.beetl.core.exception.BeetlException) BlockContext(org.beetl.core.parser.BeetlParser.BlockContext) ContinueStatement(org.beetl.core.statement.ContinueStatement) DirectiveStatement(org.beetl.core.statement.DirectiveStatement) WhileStatement(org.beetl.core.statement.WhileStatement) AjaxStatement(org.beetl.core.statement.AjaxStatement) BreakStatement(org.beetl.core.statement.BreakStatement) ReturnStatement(org.beetl.core.statement.ReturnStatement) TagVarBindingStatement(org.beetl.core.statement.TagVarBindingStatement) EndStatement(org.beetl.core.statement.EndStatement) VarAssignStatement(org.beetl.core.statement.VarAssignStatement) GeneralForStatement(org.beetl.core.statement.GeneralForStatement) Statement(org.beetl.core.statement.Statement) BlockStatement(org.beetl.core.statement.BlockStatement) IfStatement(org.beetl.core.statement.IfStatement) ForStatement(org.beetl.core.statement.ForStatement) SwitchStatement(org.beetl.core.statement.SwitchStatement) TagStatement(org.beetl.core.statement.TagStatement) VarRefAssignStatement(org.beetl.core.statement.VarRefAssignStatement) SelectStatement(org.beetl.core.statement.SelectStatement) TryCatchStatement(org.beetl.core.statement.TryCatchStatement) ExpressionListContext(org.beetl.core.parser.BeetlParser.ExpressionListContext) TagStatement(org.beetl.core.statement.TagStatement) StatementExpressionContext(org.beetl.core.parser.BeetlParser.StatementExpressionContext) ExpressionContext(org.beetl.core.parser.BeetlParser.ExpressionContext) ParExpressionContext(org.beetl.core.parser.BeetlParser.ParExpressionContext) ContentBodyExpression(org.beetl.core.statement.ContentBodyExpression) ArthExpression(org.beetl.core.statement.ArthExpression) JsonMapExpression(org.beetl.core.statement.JsonMapExpression) CompareExpression(org.beetl.core.statement.CompareExpression) FunctionExpression(org.beetl.core.statement.FunctionExpression) IncDecExpression(org.beetl.core.statement.IncDecExpression) Expression(org.beetl.core.statement.Expression) AndExpression(org.beetl.core.statement.AndExpression) StatementExpression(org.beetl.core.statement.StatementExpression) NativeCallExpression(org.beetl.core.statement.NativeCallExpression) NegExpression(org.beetl.core.statement.NegExpression) FormatExpression(org.beetl.core.statement.FormatExpression) TernaryExpression(org.beetl.core.statement.TernaryExpression) OrExpression(org.beetl.core.statement.OrExpression) JsonArrayExpression(org.beetl.core.statement.JsonArrayExpression) NotBooleanExpression(org.beetl.core.statement.NotBooleanExpression) Literal(org.beetl.core.statement.Literal) VarDefineNode(org.beetl.core.statement.VarDefineNode) TagVarBindingStatement(org.beetl.core.statement.TagVarBindingStatement)

Aggregations

BeetlException (org.beetl.core.exception.BeetlException)1 BlockContext (org.beetl.core.parser.BeetlParser.BlockContext)1 ExpressionContext (org.beetl.core.parser.BeetlParser.ExpressionContext)1 ExpressionListContext (org.beetl.core.parser.BeetlParser.ExpressionListContext)1 ParExpressionContext (org.beetl.core.parser.BeetlParser.ParExpressionContext)1 StatementExpressionContext (org.beetl.core.parser.BeetlParser.StatementExpressionContext)1 AjaxStatement (org.beetl.core.statement.AjaxStatement)1 AndExpression (org.beetl.core.statement.AndExpression)1 ArthExpression (org.beetl.core.statement.ArthExpression)1 BlockStatement (org.beetl.core.statement.BlockStatement)1 BreakStatement (org.beetl.core.statement.BreakStatement)1 CompareExpression (org.beetl.core.statement.CompareExpression)1 ContentBodyExpression (org.beetl.core.statement.ContentBodyExpression)1 ContinueStatement (org.beetl.core.statement.ContinueStatement)1 DirectiveStatement (org.beetl.core.statement.DirectiveStatement)1 EndStatement (org.beetl.core.statement.EndStatement)1 Expression (org.beetl.core.statement.Expression)1 ForStatement (org.beetl.core.statement.ForStatement)1 FormatExpression (org.beetl.core.statement.FormatExpression)1 FunctionExpression (org.beetl.core.statement.FunctionExpression)1