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Lua Quick Start Guide

You're reading from   Lua Quick Start Guide The easiest way to learn Lua programming

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781789343229
Length 202 pages
Edition 1st Edition
Languages
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Author (1):
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Gabor Szauer Gabor Szauer
Author Profile Icon Gabor Szauer
Gabor Szauer
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Toc

Functions

Global functions can be registered with Lua Bridge as well. These functions don't need to have the same signature as lua_CFunction; as Lua Bridge will generate the required glue code. Functions can be exposed with the addFunction function. This function takes two arguments. The first one is the Lua-side name of the function, and the second is a pointer to the function. The following code demonstrates how to do this:

int bar() {
return 2;
}

getGlobalNamespace(L)
.beginNamespace("foo")
.addFunction("bar", bar)
.endNamespace()

It is also possible to register functions written against the Lua C API that match the signature of lua_CFunction. You will most often do this if you need to port some legacy code over, in order to use Lua Bridge. Adding these functions works almost the same; the only difference is that the name of the function...

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