类的使用
org.beetl.core.statement.ASTNode

使用ASTNode的程序包

程序包	说明
org.beetl.core
org.beetl.core.misc
org.beetl.core.statement

org.beetl.core中ASTNode的使用

参数类型为ASTNode的org.beetl.core中的方法

限定符和类型	方法和说明
void	ProgramBuilderContext.addVarAndPostion(ASTNode first)
protected void	AntlrProgramBuilder.registerNewVar(ASTNode vas)
protected void	AntlrProgramBuilder.registerVar(ASTNode vas)
void	ProgramBuilderContext.setVarPosition(String varName, ASTNode where)

org.beetl.core.misc中ASTNode的使用

参数类型为ASTNode的org.beetl.core.misc中的方法

限定符和类型	方法和说明
static Object	ALU.div(Object o1, Object o2, ASTNode node1, ASTNode node2)
static boolean	ALU.greater(Object o1, Object o2, ASTNode node1, ASTNode node2)
static boolean	ALU.greaterEquals(Object o1, Object o2, ASTNode node1, ASTNode node2)
static Boolean	ALU.isTrue(Object o, ASTNode node)
static boolean	ALU.less(Object o1, Object o2, ASTNode node1, ASTNode node2)
static boolean	ALU.lessEquals(Object o1, Object o2, ASTNode node1, ASTNode node2)
static Object	ALU.minus(Object o1, Object o2, ASTNode node1, ASTNode node2)
static Object	ALU.minusOne(Object o1, ASTNode node)
static Object	ALU.mod(Object o1, Object o2, ASTNode node1, ASTNode node2)
static Object	ALU.mult(Object o1, Object o2, ASTNode node1, ASTNode node2)
static Object	ALU.negative(Object o1, ASTNode node)
static Object	ALU.plus(Object o1, Object o2, ASTNode node1, ASTNode node2) 不同于js，数字类型允许一个为null，beetl中，如果数字相加，有一个是null，则抛出异常
static Object	ALU.plusOne(Object o1, ASTNode node)

org.beetl.core.statement中ASTNode的使用

org.beetl.core.statement中ASTNode的子类

限定符和类型	类和说明
class	AjaxStatement #ajax id:{...}
class	AndExpression exp1+exp2
class	ArthExpression a+b,a-b,a*b,a/b,a%b
class	BlockStatement { statement1;statement2 }
class	BreakStatement break;
class	CompareExpression a> b,a>=b,a==b,a>b,a>=b
class	ContentBodyExpression var a = { ...}
class	ContinueStatement continue;
class	DirectiveStatement directive safe_output_open
class	EndStatement ; ; 多余分号
class	Expression 表达式基类
class	FormatExpression ${date,dateFormat='yyyy-mm-dd'}
class	ForStatement for(user:list){}elsefor{}
class	FunctionExpression call();
class	FunctionStatement call();
class	GeneralForStatement for(var a=0;a <10;i++){}elsefor{}
class	IfStatement if()else{}
class	IncDecExpression ++i 或者 i++ 或者--i 或者i--
class	JsonArrayExpression var a = [1,2,3]
class	JsonMapExpression {a:1,b:2}
class	Literal String ,Number ,Boolean
class	NativeCallExpression
class	NegExpression -exp
class	NotBooleanExpression !
class	OrExpression exp1 or exp2
class	PlaceholderST ${exp,format=""}
class	ReturnStatement return
class	SafePlaceholderST !
class	SelectStatement same with switch-case
class	Statement 执行语句
class	StatementExpression 表达式语句，如fun();
class	StaticTextASTNode 模板的静态部分
class	StaticTextByteASTNode 模板的静态部分
class	SwitchStatement 类似go语言的switch
class	TagStatement 标签，如: cache(){ ...... }
class	TagVarBindingStatement
class	TernaryExpression 三元表达式 condtion?
class	TryCatchStatement try{ }catch(error){ }
class	VarAssignExpression if( (xxx = exp)==1);
class	VarAssignNullStatment var xx = null;
class	VarAssignStatement var xxx = exp;
class	VarAssignStatementSeq var a=1,b=2
class	VarAttribute user.name
class	VarDefineNode var c
class	VarRef user.name
class	VarSquareAttribute a.[]
class	VarTemplateAssignStatement var a = { ..... };
class	VarVirtualAttribute list.
class	WhileStatement while(exp) whileBody