Fixing documentation. Adding an example.

Doc/Manual/Lua.html

@@ -1346,15 +1346,20 @@ int module_variable = 9;
 namespace MyWorld {
   class World {
   public:
+    World():
+      world_max_count(9) {}
     int create_world() { return 17; }
-    const int world_max_count = 9;
+    const int world_max_count; // = 9
   };
   namespace Nested {
     class Dweller {
-      enum Gender { MALE, FEMALE };
-      static int populate_cave() { return 19; }
-      int create_cave() { return 13; }
-      int food_count; // = 11
+      public:
+        Dweller():
+          food_count(11) {}
+        enum Gender { MALE = 0, FEMALE = 1 };
+        static int populate_cave() { return 19; }
+        int create_cave() { return 13; }
+        int food_count; // = 11
     };
   }
 }
@@ -1364,15 +1369,13 @@ Now, from Lua usage is as follows:
 > print(example.module_function())
 7
 > print(example.module_variable)
-8
+9
 > print(example.MyWorld.World():create_world())
 17
 > print(example.MyWorld.World.world_max_count)
 9
 > print(example.MyWorld.Nested.Dweller.MALE)
 0
-> print(example.MyWorld.Nested.Dweller().food_count)
-11
 >
 </pre></div>
 <H4> Backward compatibility </H4>

Examples/lua/check.list

@@ -11,6 +11,7 @@ funcptr3
 functest
 functor
 import
+nspace
 owner
 pointer
 simple

Examples/lua/nspace/Makefile

@@ -0,0 +1,19 @@
+TOP        = ../..
+SWIG       = $(TOP)/../preinst-swig
+CXXSRCS    = 
+TARGET     = example
+INTERFACE  = example.i
+
+check: build
+	$(MAKE) -f $(TOP)/Makefile lua_run
+
+build:
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' lua_cpp
+
+static:
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	TARGET='mylua' INTERFACE='$(INTERFACE)' lua_cpp_static
+
+clean:
+	$(MAKE) -f $(TOP)/Makefile lua_clean

Examples/lua/nspace/example.h

@@ -0,0 +1,28 @@
+#ifndef _example_guardian_
+#define _example_guardian_
+
+int module_function() { return 7; }
+int module_variable = 9;
+
+namespace MyWorld {
+  class World {
+  public:
+    World():
+      world_max_count(9) {}
+    int create_world() { return 17; }
+    const int world_max_count; // = 9
+  };
+  namespace Nested {
+    class Dweller {
+      public:
+        Dweller():
+          food_count(11) {}
+        enum Gender { MALE = 0, FEMALE = 1 };
+        static int populate_cave() { return 19; }
+        int create_cave() { return 13; }
+        int food_count; // = 11
+    };
+  }
+}
+
+#endif

Examples/lua/nspace/example.i

@@ -0,0 +1,10 @@
+%module example
+
+%{
+#include "example.h"
+%}
+
+ %nspace MyWorld::Nested::Dweller;
+ %nspace MyWorld::World;
+
+%include "example.h"

Examples/lua/nspace/runme.lua

@@ -0,0 +1,41 @@
+-- file: runme.lua
+
+-- This file illustrates class C++ interface generated
+-- by SWIG.
+
+---- importing ----
+if string.sub(_VERSION,1,7)=='Lua 5.0' then
+	-- lua5.0 doesnt have a nice way to do this
+	lib=loadlib('example.dll','luaopen_example') or loadlib('example.so','luaopen_example')
+	assert(lib)()
+else
+	-- lua 5.1 does
+	require('example')
+end
+
+ex = example
+
+-- Calling a module function ( aka global function )
+assert( ex.module_function() == 7 )
+print("example.module_function(): ", ex.module_function())
+
+-- Accessing a module (aka global) variable
+assert( ex.module_variable == 9 )
+print("example.module_variable: ", ex.module_variable)
+
+-- Creating an instance of the class
+w1 = ex.MyWorld.World()
+print("Creating class instance: w1 = ex.MyWorld.World(): ", w1)
+
+-- Accessing class members 
+assert( ex.MyWorld.World():create_world() == 17 )
+print( "w1:create_world() = ", w1:create_world() )
+assert( w1:create_world() == 17 )
+print( "w1:world_max_count = ", w1.world_max_count )
+assert( w1.world_max_count == 9 )
+
+-- Accessing enums from class within namespace
+print( "Accessing enums: ex.MyWorld.Nested.Dweller.MALE = ", ex.MyWorld.Nested.Dweller.MALE )
+assert( ex.MyWorld.Nested.Dweller.MALE == 0 )
+assert( ex.MyWorld.Nested.Dweller.FEMALE == 1 )
+