ball_syntaxtree.xml

这是一个用java语言编写的小型C语言的语法分析器。

<?xml version="1.0"?>
<root>
    <tree line="1" nodetype="ClassDecl" nodestring="Ball">
        <child>
            <tree line="3" nodetype="VarDecl" nodestring="b" vartype="int" modifier="private" isArray="0" />
            <tree line="4" nodetype="VarDecl" nodestring="size" vartype="int" modifier="private" isArray="0" />
            <tree line="5" nodetype="FunDecl" nodestring="Ball" rettype="void" modifier="constructor">
                <child>
                    <tree line="5" nodetype="Para" nodestring="x" vartype="int" isArray="0" />
                    <tree line="5" nodetype="Para" nodestring="y" vartype="int" isArray="0" />
                </child>
                <child>
                    <tree line="7" nodetype="AssignStm" nodestring="=">
                        <child>
                            <tree line="7" nodetype="VarID" nodestring="b" isArray="0" />
                        </child>
                        <child>
                            <tree line="7" nodetype="VarID" nodestring="x" isArray="0" />
                        </child>
                    </tree>
                    <tree line="8" nodetype="AssignStm" nodestring="=">
                        <child>
                            <tree line="8" nodetype="VarID" nodestring="size" isArray="0" />
                        </child>
                        <child>
                            <tree line="8" nodetype="VarID" nodestring="y" isArray="0" />
                        </child>
                    </tree>
                </child>
            </tree>
            <tree line="10" nodetype="FunDecl" nodestring="TestEX" rettype="void" modifier="public">
                <child>
                    <tree line="12" nodetype="VarDecl" nodestring="ex" vartype="int" modifier="" isArray="0" />
                    <tree line="13" nodetype="AssignStm" nodestring="=">
                        <child>
                            <tree line="13" nodetype="VarID" nodestring="ex" isArray="0" />
                        </child>
                        <child>
                            <tree line="13" nodetype="ConstID" nodestring="0" />
                        </child>
                    </tree>
                    <tree line="14" nodetype="TryStm" nodestring="try">
                        <child>
                            <tree line="15" nodetype="IfStm" nodestring="if">
                                <child>
                                    <tree line="15" nodetype="REQ" nodestring="==">
                                        <child>
                                            <tree line="15" nodetype="VarID" nodestring="b" isArray="0" />
                                        </child>
                                        <child>
                                            <tree line="15" nodetype="ConstID" nodestring="2" />
                                        </child>
                                    </tree>
                                </child>
                                <child>
                                    <tree line="16" nodetype="ThrowStm" nodestring="throw">
                                        <child>
                                            <tree line="16" nodetype="VarID" nodestring="ex" />
                                        </child>
                                    </tree>
                                </child>
                            </tree>
                            <tree line="17" nodetype="AssignStm" nodestring="=">
                                <child>
                                    <tree line="17" nodetype="VarID" nodestring="b" isArray="0" />
                                </child>
                                <child>
                                    <tree line="17" nodetype="ADD" nodestring="+">
                                        <child>
                                            <tree line="17" nodetype="VarID" nodestring="b" isArray="0" />
                                        </child>
                                        <child>
                                            <tree line="17" nodetype="ConstID" nodestring="1" />
                                        </child>
                                    </tree>
                                </child>
                            </tree>
                        </child>
                        <child>
                            <tree line="19" nodetype="CatchStm" nodestring="catch">
                                <child>
                                    <tree line="19" nodetype="Para" nodestring="e" vartype="int" isArray="0" />
                                </child>
                                <child>
                                    <tree line="21" nodetype="AssignStm" nodestring="=">
                                        <child>
                                            <tree line="21" nodetype="VarID" nodestring="b" isArray="0" />
                                        </child>
                                        <child>
                                            <tree line="21" nodetype="ConstID" nodestring="0" />
                                        </child>
                                    </tree>
                                </child>
                            </tree>
                        </child>
                    </tree>
                </child>
            </tree>
            <tree line="24" nodetype="FunDecl" nodestring="Increase" rettype="void" modifier="public" isVirtual="1">
                <child>
                    <tree line="26" nodetype="AssignStm" nodestring="=">
                        <child>
                            <tree line="26" nodetype="VarID" nodestring="b" isArray="0" />
                        </child>
                        <child>
                            <tree line="26" nodetype="ADD" nodestring="+">
                                <child>
                                    <tree line="26" nodetype="VarID" nodestring="b" isArray="0" />
                                </child>
                                <child>
                                    <tree line="26" nodetype="ConstID" nodestring="1" />
                                </child>
                            </tree>
                        </child>
                    </tree>
                </child>
            </tree>
            <tree line="28" nodetype="FunDecl" nodestring="size" rettype="int" modifier="public" isVirtual="1">
                <child>
                    <tree line="30" nodetype="ReturnStm" nodestring="return">
                        <child>
                            <tree line="30" nodetype="VarID" nodestring="size" isArray="0" />
                        </child>
                    </tree>
                </child>
            </tree>
        </child>
    </tree>
    <tree line="33" nodetype="ClassDecl" nodestring="basketBall">
        <child>
            <tree line="33" nodetype="BaseClsID" nodestring="Ball" modifier="public" />
        </child>
        <child>
            <tree line="35" nodetype="FunDecl" nodestring="basketBall" rettype="void" modifier="constructor" />
            <tree line="38" nodetype="FunDecl" nodestring="size" rettype="int" modifier="public">
                <child>
                    <tree line="40" nodetype="VarDecl" nodestring="bsize" vartype="int" modifier="" isArray="0" />
                    <tree line="41" nodetype="AssignStm" nodestring="=">
                        <child>
                            <tree line="41" nodetype="VarID" nodestring="bsize" isArray="0" />
                        </child>
                        <child>
                            <tree line="41" nodetype="ADD" nodestring="+">
                                <child>
                                    <tree line="41" nodetype="VarID" nodestring="size" isArray="0" />
                                </child>
                                <child>
                                    <tree line="41" nodetype="ConstID" nodestring="2" />
                                </child>
                            </tree>
                        </child>
                    </tree>
                    <tree line="42" nodetype="ReturnStm" nodestring="return">
                        <child>
                            <tree line="42" nodetype="VarID" nodestring="bsize" isArray="0" />
                        </child>
                    </tree>
                </child>