Difference between revisions of "(global)"
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__NOTOC__ | __NOTOC__ | ||
− | |||
<!-- GIDEROSOBJ:(global) --> | <!-- GIDEROSOBJ:(global) --> | ||
+ | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]]<br/> | ||
+ | '''Available since:''' Gideros 2011.6<br/> | ||
− | + | === Description === | |
− | |||
− | |||
− | === | ||
Global scope of Lua environment. | Global scope of Lua environment. | ||
− | === | + | === Example === |
'''Prints all current global variables:''' | '''Prints all current global variables:''' | ||
<source lang="lua"> | <source lang="lua"> | ||
Line 20: | Line 18: | ||
globalVariable() | globalVariable() | ||
</source> | </source> | ||
+ | |||
{|- | {|- | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
− | === | + | === Methods === |
− | [[ | + | [[assert]] ''error if v nil or false, otherwise returns v''<br/><!--GIDEROSMTD:assert(v,message) error if v nil or false, otherwise returns v--> |
− | <!-- GIDEROSMTD:assert(v,message) error if v nil or false, otherwise returns v --> | + | [[collectgarbage]] ''opts: stop, restart, collect, count, step, setpause, setstepmul''<br/><!--GIDEROSMTD:collectgarbage(opt,arg) opts: stop, restart, collect, count, step, setpause, setstepmul--> |
− | [[ | + | [[dofile]] ''executes as Lua chunk, default stdin, returns value''<br/><!--GIDEROSMTD:dofile(filename) executes as Lua chunk, default stdin, returns value--> |
− | <!-- GIDEROSMTD:collectgarbage(opt,arg) opts: stop, restart, collect, count, step, setpause, setstepmul --> | + | [[error]] ''terminates protected func, never returns''<br/><!--GIDEROSMTD:error(message,level) terminates protected func, never returns--> |
− | [[ | + | [[getfenv]] ''gets env, f can be a function or number(stack level)''<br/><!--GIDEROSMTD:getfenv(f) gets env, f can be a function or number(stack level)--> |
− | <!-- GIDEROSMTD:dofile(filename) executes as Lua chunk, default stdin, returns value --> | + | [[getmetatable]] ''returns metatable of given object, otherwise nil''<br/><!--GIDEROSMTD:getmetatable(object) returns metatable of given object, otherwise nil--> |
− | [[ | + | [[ipairs]] ''returns an iterator function, table t and 0''<br/><!--GIDEROSMTD:ipairs(t) returns an iterator function, table t and 0--> |
− | <!-- GIDEROSMTD:error(message,level) terminates protected func, never returns --> | + | [[loadfile]] ''loads chunk without execution, returns chunk as function, else nil plus error''<br/><!--GIDEROSMTD:loadfile(filename) loads chunk without execution, returns chunk as function, else nil plus error--> |
− | [[ | + | [[loadstring]] ''loads string as chunk, returns chunk as function, else nil plus error''<br/><!--GIDEROSMTD:loadstring(string,chunkname) loads string as chunk, returns chunk as function, else nil plus error--> |
− | <!-- GIDEROSMTD:getfenv(f) gets env, f can be a function or number(stack level) --> | + | [[next]] ''returns next index,value pair, if index=nil(default-, returns first index''<br/><!--GIDEROSMTD:next(table,index) returns next index,value pair, if index=nil(default-, returns first index--> |
− | [[ | + | [[pairs]] ''returns the next function and table t plus a nil, iterates over all key-value pairs''<br/><!--GIDEROSMTD:pairs(t) returns the next function and table t plus a nil, iterates over all key-value pairs--> |
− | <!-- GIDEROSMTD:getmetatable(object) returns metatable of given object, otherwise nil --> | + | [[pcall]] ''protected mode call, catches errors, returns status code first''<br/><!--GIDEROSMTD:pcall(f,arg1,arg2,...) protected mode call, catches errors, returns status code first--> |
− | [[ | + | [[print]] ''prints values to stdout using tostring''<br/><!--GIDEROSMTD:print(e1,e2,...) prints values to stdout using tostring--> |
− | <!-- GIDEROSMTD:ipairs(t) returns an iterator function, table t and 0 --> | + | [[rawequal]] ''non-metamethod v1==v2, returns boolean''<br/><!--GIDEROSMTD:rawequal(v1,v2) non-metamethod v1==v2, returns boolean--> |
− | [[ | + | [[rawget]] ''non-metamethod get value of table[index], index != nil''<br/><!--GIDEROSMTD:rawget(table,key) non-metamethod get value of table[index], index != nil--> |
− | <!-- GIDEROSMTD:loadfile(filename) loads chunk without execution, returns chunk as function, else nil plus error --> | + | [[rawset]] ''non-metamethod set value of table[index], index != nil''<br/><!--GIDEROSMTD:rawset(table,key,value) non-metamethod set value of table[index], index != nil--> |
− | [[ | + | [[require]] ''loads package, updates _LOADED, returns boolean''<br/><!--GIDEROSMTD:require(packagename) loads package, updates _LOADED, returns boolean--> |
− | <!-- GIDEROSMTD:loadstring(string,chunkname) loads string as chunk, returns chunk as function, else nil plus error --> | + | [[setfenv]] ''sets env, f can be a function or number(stack level, default=1-, 0=global env''<br/><!--GIDEROSMTD:setfenv(f,table) sets env, f can be a function or number(stack level, default=1-, 0=global env--> |
− | [[ | + | [[setmetatable]] ''sets metatable, nil to remove metatable''<br/><!--GIDEROSMTD:setmetatable(table,metatable) sets metatable, nil to remove metatable--> |
− | <!-- GIDEROSMTD:next(table,index) returns next index,value pair, if index=nil(default-, returns first index --> | + | [[tonumber]] ''convert to number, returns number, nil if non-convertible, 2<=base<=36''<br/><!--GIDEROSMTD:tonumber(e,base) convert to number, returns number, nil if non-convertible, 2<=base<=36--> |
− | [[ | + | [[tostring]] ''convert to string, returns string''<br/><!--GIDEROSMTD:tostring(e) convert to string, returns string--> |
− | <!-- GIDEROSMTD:pairs(t) returns the next function and table t plus a nil, iterates over all key-value pairs --> | + | [[type]] ''returns type of v as a string''<br/><!--GIDEROSMTD:type(v) returns type of v as a string--> |
− | [[ | + | [[unpack]] ''returns all elements from list''<br/><!--GIDEROSMTD:unpack(list) returns all elements from list--> |
− | <!-- GIDEROSMTD:pcall(f,arg1,arg2,...) protected mode call, catches errors, returns status code first --> | + | [[xpcall]] ''pcall function f with new error handler err''<br/><!--GIDEROSMTD:xpcall(f,err) pcall function f with new error handler err--> |
− | [[ | ||
− | <!-- GIDEROSMTD:print(e1,e2,...) prints values to stdout using tostring --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:rawequal(v1,v2) non-metamethod v1==v2, returns boolean --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:rawget(table,key) non-metamethod get value of table[index], index != nil --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:rawset(table,key,value) non-metamethod set value of table[index], index != nil --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:require(packagename) loads package, updates _LOADED, returns boolean --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:setfenv(f,table) sets env, f can be a function or number(stack level, default=1-, 0=global env --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:setmetatable(table,metatable) sets metatable, nil to remove metatable --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:tonumber(e,base) convert to number, returns number, nil if non-convertible, 2<=base<=36 --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:tostring(e) convert to string, returns string --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:type(v) returns type of v as a string --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:unpack(list) returns all elements from list --> | ||
− | [[ | ||
− | <!-- GIDEROSMTD:xpcall(f,err) pcall function f with new error handler err --> | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
− | === | + | === Events === |
− | === | + | === Constants === |
− | [[ | + | [[_G]]<br/><!--GIDEROSCST:_G--> |
− | [[ | + | [[_VERSION]]<br/><!--GIDEROSCST:_VERSION Lua 5.x.x--> |
|} | |} | ||
{{GIDEROS IMPORTANT LINKS}} | {{GIDEROS IMPORTANT LINKS}} |
Revision as of 23:42, 26 January 2022
Supported platforms:
Available since: Gideros 2011.6
Description
Global scope of Lua environment.
Example
Prints all current global variables:
local function globalVariable()
for k,v in pairs(_G) do
print(k,v)
end
end
globalVariable()
Methodsassert error if v nil or false, otherwise returns v |
EventsConstants |