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

Example 1 with Statement

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

the class AntlrProgramBuilder method parseBlock.

protected BlockStatement parseBlock(List list, ParserRuleContext ctx) {
    pbCtx.enterBlock();
    ASTNode[] statements = new ASTNode[list.size()];
    List<Statement> nodes = new ArrayList<Statement>();
    boolean hasGoto = false;
    for (int i = 0; i < statements.length; i++) {
        nodes.add(parseStatment((ParserRuleContext) list.get(i)));
    }
    BlockStatement block = new BlockStatement(nodes.toArray(new Statement[0]), this.getBTToken(ctx.getStart()));
    this.checkGoto(block);
    pbCtx.exitBlock();
    return block;
}

Example 2 with Statement

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

the class AntlrProgramBuilder method parseForSt.

protected Statement parseForSt(ForStContext ctx) {
    pbCtx.enterBlock();
    // break，continue语句到此为止
    pbCtx.current.canStopContinueBreakFlag = true;
    StatementContext forContext = ctx.statement(0);
    StatementContext elseContext = null;
    ForControlContext forTypeCtx = ctx.forControl();
    if (forTypeCtx.forInControl() != null) {
        // for(a in list)...
        ForInControlContext forCtx = forTypeCtx.forInControl();
        VarDefineNode forVar = new VarDefineNode(this.getBTToken(forCtx.Identifier().getSymbol()));
        if (pbCtx.hasDefined(forVar.token.text) != null) {
            GrammarToken token = pbCtx.hasDefined(forVar.token.text);
            BeetlException ex = new BeetlException(BeetlException.VAR_ALREADY_DEFINED, "已经在第" + token.line + "行定义");
            ex.pushToken(forVar.token);
            throw ex;
        }
        VarDefineNode loopStatusVar = new VarDefineNode(new org.beetl.core.statement.GrammarToken(forCtx.Identifier().getSymbol().getText() + "LP", forCtx.Identifier().getSymbol().getLine(), 0));
        if (pbCtx.hasDefined(loopStatusVar.token.text) != null) {
            GrammarToken token = pbCtx.hasDefined(loopStatusVar.token.text);
            BeetlException ex = new BeetlException(BeetlException.VAR_ALREADY_DEFINED, "For循环隐含变量，已经在第" + token.line + "行定义");
            ex.pushToken(loopStatusVar.token);
            throw ex;
        }
        pbCtx.addVarAndPostion(forVar);
        pbCtx.addVarAndPostion(loopStatusVar);
        // //beetl.2 兼容
        // VarDefineNode indexVar = new VarDefineNode(new org.beetl.core.statement.GrammarToken(forCtx.Identifier()
        // .getSymbol().getText()
        // + "_index", forCtx.Identifier().getSymbol().getLine(), 0));
        // 
        // VarDefineNode sizeVar = new VarDefineNode(new org.beetl.core.statement.GrammarToken(forCtx.Identifier()
        // .getSymbol().getText()
        // + "_size", forCtx.Identifier().getSymbol().getLine(), 0));
        // 
        // pbCtx.addVarAndPostion(indexVar);
        // 
        // pbCtx.addVarAndPostion(sizeVar);
        Expression exp = this.parseExpress(forCtx.expression());
        Statement forPart = this.parseStatment(forContext);
        // elsefor
        Statement elseForPart = null;
        if (ctx.Elsefor() != null) {
            elseContext = ctx.statement(1);
            elseForPart = this.parseStatment(elseContext);
        }
        boolean hasSafe = false;
        if (exp instanceof VarRef) {
            VarRef varRef = (VarRef) exp;
            hasSafe = varRef.hasSafe;
        }
        if (pbCtx.isSafeOutput) {
            hasSafe = true;
        }
        ForStatement forStatement = new ForStatement(forVar, exp, hasSafe, forPart, elseForPart, forVar.token);
        this.checkGoto(forStatement);
        pbCtx.exitBlock();
        return forStatement;
    } else {
        GeneralForControlContext forCtx = forTypeCtx.generalForControl();
        Expression[] initExp = null;
        VarAssignStatementSeq varInitSeq = null;
        Expression condtion = null;
        Expression[] updateExp = null;
        if (forCtx.forInit() != null) {
            ForInitContext forInitCtx = forCtx.forInit();
            if (forInitCtx.Var() == null) {
                // for( a=1,b=3;
                List<ExpressionContext> list = forInitCtx.expressionList().expression();
                initExp = this.parseExpressionCtxList(list);
            } else {
                // for( var a=1,b=3;
                VarDeclareListContext varDeclare = forInitCtx.varDeclareList();
                varInitSeq = this.parseVarDeclareList(varDeclare);
            }
        }
        if (forCtx.expression() != null) {
            condtion = this.parseExpress(forCtx.expression());
        }
        if (forCtx.forUpdate() != null) {
            ForUpdateContext updateCtx = forCtx.forUpdate();
            List<ExpressionContext> list = updateCtx.expressionList().expression();
            updateExp = this.parseExpressionCtxList(list);
        }
        Statement forPart = this.parseStatment(forContext);
        // elsefor
        Statement elseForPart = null;
        if (ctx.Elsefor() != null) {
            elseContext = ctx.statement(1);
            elseForPart = this.parseStatment(elseContext);
        }
        String str = forTypeCtx.getText();
        GeneralForStatement forStat = new GeneralForStatement(varInitSeq, initExp, condtion, updateExp, forPart, elseForPart, this.getBTToken(str, forTypeCtx.start.getLine()));
        pbCtx.exitBlock();
        return forStat;
    }
}

Example 3 with Statement

use of org.beetl.core.statement.Statement 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 4 with Statement

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

the class TypeBindingProbe method infer.

/**
 * 确定表达式的类型
 */
protected void infer() {
    InferContext ctx = new InferContext();
    ctx.types = types;
    ctx.gt = this.program.gt;
    for (Statement st : this.program.metaData.statements) {
        st.infer(ctx);
    }
}

Example 5 with Statement

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

the class AntlrProgramBuilder method parseVarDeclareList.

private VarAssignStatementSeq parseVarDeclareList(VarDeclareListContext ctx) {
    List<AssignMentContext> list = ctx.assignMent();
    List<ASTNode> listNode = new ArrayList<ASTNode>();
    for (AssignMentContext amc : list) {
        VarAssignStatement vas = this.parseAssign(amc);
        listNode.add(vas);
        if (!(vas instanceof VarRefAssignStatement)) {
            // 如果是临时变量定义
            this.registerNewVar(vas);
        }
    }
    VarAssignStatementSeq seq = new VarAssignStatementSeq(listNode.toArray(new Statement[0]), null);
    return seq;
}