org.luaj.vm2

类 LuaFunction

java.lang.Object

org.luaj.vm2.Varargs

org.luaj.vm2.LuaValue

org.luaj.vm2.LuaFunction

直接已知子类:

LibFunction, LuaClosure

public abstract class LuaFunction
extends LuaValue

Base class for functions implemented in Java.

Direct subclass include LibFunction which is the base class for all built-in library functions coded in Java, and LuaClosure, which represents a lua closure whose bytecode is interpreted when the function is invoked.

另请参阅:

LuaValue, LuaClosure, LibFunction

字段概要

字段

限定符和类型	字段和说明
static LuaValue	s_metatable Shared static metatable for all functions and closures.

从类继承的字段 org.luaj.vm2.LuaValue

ADD, BAND, BNOT, BOR, BXOR, CALL, CONCAT, DIV, EMPTYSTRING, ENV, EQ, FALSE, IDIV, INDEX, LE, LEN, LT, METATABLE, MINUSONE, MOD, MODE, MUL, NEWINDEX, NIL, NILS, NONE, NOVALS, ONE, POW, SHL, SHR, SUB, TBOOLEAN, TFUNCTION, TINT, TLIGHTUSERDATA, TNIL, TNONE, TNUMBER, TOSTRING, TRUE, TSTRING, TTABLE, TTHREAD, TUSERDATA, TVALUE, TYPE_NAMES, UNM, uservalue, ZERO

构造器概要

构造器

构造器和说明
LuaFunction()
LuaFunction(LuaValue env)

方法概要

限定符和类型	方法和说明
LuaFunction	checkfunction() Check that the value is a function , or throw LuaError if not A LuaFunction may either be a Java function that implements functionality directly in Java, or a LuaClosure which is a LuaFunction that executes lua bytecode.
String	classnamestub() Return the last part of the class name, to be used as a function name in tojstring and elsewhere.
LuaValue	getfenv()
LuaValue	getmetatable() Get the metatable for this LuaValue For LuaTable and LuaUserdata instances, the metatable returned is this instance metatable.
boolean	isfunction() Check if this is a function
String	name() Return a human-readable name for this function.
LuaFunction	optfunction(LuaFunction defval) Check that optional argument is a function and return as LuaFunction A LuaFunction may either be a Java function that implements functionality directly in Java, or a LuaClosure which is a LuaFunction that executes lua bytecode.
void	setfenv(LuaValue env)
LuaString	strvalue() Convert this value to a string if it is a LuaString or LuaNumber, or throw a LuaError if it is not
String	tojstring() Convert to human readable String for any type.
int	type() Get the enumeration value for the type of this value.
String	typename() Get the String name of the type of this value.

从类继承的方法 org.luaj.vm2.LuaValue

add, add, add, and, arg, arg1, argerror, argerror, aritherror, aritherror, arithmt, arithmtwith, assert_, band, band, bnot, bor, bor, buffer, bxor, bxor, call, call, call, call, call, callmt, checkboolean, checkclosure, checkdouble, checkglobals, checkint, checkinteger, checkjstring, checklong, checkmetatag, checknotnil, checknumber, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, compareerror, compareerror, comparemt, concat, concat, concatmt, concatTo, concatTo, concatTo, div, div, div, divInto, eq_b, eq, eqmtcall, equals, error, get, get, get, gettable, getuservalue, gt_b, gt_b, gt_b, gt, gt, gt, gteq_b, gteq_b, gteq_b, gteq, gteq, gteq, idiv, idiv, illegal, inext, initupvalue1, invoke, invoke, invoke, invoke, invoke, invoke, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, isboolean, isclosure, isint, isinttype, islong, isnil, isnumber, isstring, istable, isthread, isuserdata, isuserdata, isvalidkey, jcall, jget, jset, len, lenerror, length, listOf, listOf, load, lt_b, lt_b, lt_b, lt, lt, lt, lteq_b, lteq_b, lteq_b, lteq, lteq, lteq, metatableOf, metatag, method, method, method, method, method, method, mod, mod, mod, modFrom, mul, mul, mul, narg, neg, neq_b, neq, next, not, onInvoke, optboolean, optclosure, optdouble, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, or, pow, pow, pow, powWith, powWith, presize, raweq, raweq, raweq, raweq, raweq, rawget, rawget, rawget, rawlen, rawset, rawset, rawset, rawset, rawset, rawset, rawset, rawsetlist, set, set, set, set, set, set, set, setmetatable, settable, setuservalue, shl, shl, shr, shr, strcmp, strcmp, strongvalue, sub, sub, sub, subargs, subFrom, subFrom, tableOf, tableOf, tableOf, tableOf, tableOf, tableOf, tailcallOf, testfor_b, toboolean, tobyte, tochar, todouble, tofloat, toint, tolong, tonumber, toshort, tostring, toString, touserdata, touserdata, typerror, unimplemented, userdataOf, userdataOf, valueOf, valueOf, valueOf, valueOf, valueOf, valueOf, valueOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf

从类继承的方法 org.luaj.vm2.Varargs

argcheck, checkboolean, checkclosure, checkdouble, checkfunction, checkint, checkinteger, checkjstring, checklong, checknotnil, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, checkvalue, dealias, eval, isfunction, isnil, isnoneornil, isnumber, isstring, istable, isTailcall, isthread, isuserdata, isvalue, optboolean, optclosure, optdouble, optfunction, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, toboolean, tobyte, tochar, todouble, tofloat, toint, tojstring, tolong, toshort, touserdata, touserdata, type

从类继承的方法 java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细资料

s_metatable

public static LuaValue s_metatable

Shared static metatable for all functions and closures.

构造器详细资料

LuaFunction

public LuaFunction()

LuaFunction

public LuaFunction(LuaValue env)

方法详细资料

type

public int type()

从类复制的说明: LuaValue

Get the enumeration value for the type of this value.

指定者:

type 在类中 LuaValue

返回:

value for this type, one of LuaValue.TNIL, LuaValue.TBOOLEAN, LuaValue.TNUMBER, LuaValue.TSTRING, LuaValue.TTABLE, LuaValue.TFUNCTION, LuaValue.TUSERDATA, LuaValue.TTHREAD

另请参阅:

LuaValue.typename()

typename

public String typename()

从类复制的说明: LuaValue

Get the String name of the type of this value.

指定者:

typename 在类中 LuaValue

返回:

name from type name list LuaValue.TYPE_NAMES corresponding to the type of this value: "nil", "boolean", "number", "string", "table", "function", "userdata", "thread"

另请参阅:

LuaValue.type()

isfunction

public boolean isfunction()

从类复制的说明: LuaValue

Check if this is a function

覆盖:

isfunction 在类中 LuaValue

返回:

true if this is a function, otherwise false

另请参阅:

LuaValue.isclosure(), LuaValue.checkfunction(), LuaValue.optfunction(LuaFunction), LuaValue.TFUNCTION

checkfunction

public LuaFunction checkfunction()

从类复制的说明: LuaValue

Check that the value is a function , or throw LuaError if not

A LuaFunction may either be a Java function that implements functionality directly in Java, or a LuaClosure which is a LuaFunction that executes lua bytecode.

覆盖:

checkfunction 在类中 LuaValue

返回:

this if it is a lua function or closure

另请参阅:

LuaValue.checkclosure()

optfunction

public LuaFunction optfunction(LuaFunction defval)

从类复制的说明: LuaValue

Check that optional argument is a function and return as LuaFunction

A LuaFunction may either be a Java function that implements functionality directly in Java, or a LuaClosure which is a LuaFunction that executes lua bytecode.

覆盖:

optfunction 在类中 LuaValue

参数:

defval - LuaFunction to return if this is nil or none

返回:

this cast to LuaFunction if a function, defval if nil or none, throws LuaError otherwise

另请参阅:

LuaValue.checkfunction(), LuaValue.isfunction(), LuaValue.TFUNCTION

getmetatable

public LuaValue getmetatable()

从类复制的说明: LuaValue

Get the metatable for this LuaValue

For LuaTable and LuaUserdata instances, the metatable returned is this instance metatable. For all other types, the class metatable value will be returned.

覆盖:

getmetatable 在类中 LuaValue

返回:

metatable, or null if it there is none

另请参阅:

LuaBoolean.s_metatable, LuaNumber.s_metatable, LuaNil.s_metatable, s_metatable, LuaThread.s_metatable

tojstring

public String tojstring()

从类复制的说明: LuaValue

Convert to human readable String for any type.

覆盖:

tojstring 在类中 LuaValue

返回:

String for use by human readers based on type.

另请参阅:

LuaValue.tostring(), LuaValue.optjstring(String), LuaValue.checkjstring(), LuaValue.isstring(), LuaValue.TSTRING

strvalue

public LuaString strvalue()

从类复制的说明: LuaValue

Convert this value to a string if it is a LuaString or LuaNumber, or throw a LuaError if it is not

覆盖:

strvalue 在类中 LuaValue

返回:

LuaString corresponding to the value if a string or number

classnamestub

public String classnamestub()

Return the last part of the class name, to be used as a function name in tojstring and elsewhere.

返回:

String naming the last part of the class name after the last dot (.) or dollar sign ($).

name

public String name()

Return a human-readable name for this function. Returns the last part of the class name by default. Is overridden by LuaClosure to return the source file and line, and by LibFunctions to return the name.

返回:

common name for this function.

getfenv

public LuaValue getfenv()

覆盖:

getfenv 在类中 LuaValue

setfenv

public void setfenv(LuaValue env)

覆盖:

setfenv 在类中 LuaValue