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

Example 6 with Statement

use of org.beetl.core.statement.Statement 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;
    }
}

Example 7 with Statement

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

the class AntlrProgramBuilder method build.

/**
 * 通过Antlr的ParseTree生成Beetl的ProgramMetaData
 * @param tree
 * @return
 */
public ProgramMetaData build(ParseTree tree) {
    int size = tree.getChildCount() - 1;
    List<Statement> ls = new ArrayList<Statement>(size);
    for (int i = 0; i < size; i++) {
        Statement st = parseStatment((ParserRuleContext) tree.getChild(i));
        if (st != null) {
            ls.add(st);
        }
    }
    if (pbCtx.current.gotoValue == IGoto.RETURN || pbCtx.current.gotoValue == IGoto.BREAK) {
        // 如果顶级scope也有return 和break，则检测
        data.hasGoto = true;
    }
    pbCtx.anzlyszeGlobal();
    pbCtx.anzlyszeLocal();
    data.varIndexSize = pbCtx.varIndexSize;
    data.tempVarStartIndex = pbCtx.globalIndexMap.size();
    data.statements = ls.toArray(new Statement[0]);
    data.globalIndexMap = pbCtx.globalIndexMap;
    data.globalVarAttr = pbCtx.globaVarAttr;
    data.setTemplateRootScopeIndexMap(pbCtx.rootIndexMap);
    return data;
}

Example 8 with Statement

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

the class AntlrProgramBuilder method parseIf.

protected IfStatement parseIf(IfStContext ctx) {
    ParExpressionContext pe = ctx.parExpression();
    ExpressionContext expCtx = pe.expression();
    Expression exp = this.parseExpress(expCtx);
    StatementContext ifStatCtx = ctx.statement(0);
    Statement ifStat = this.parseStatment(ifStatCtx);
    StatementContext elseStatCtx = ctx.statement(1);
    Statement elseStat = null;
    if (elseStatCtx != null) {
        elseStat = this.parseStatment(elseStatCtx);
    }
    return new IfStatement(exp, ifStat, elseStat, this.getBTToken(ctx.If().getSymbol()));
}