1 files changed, 68 insertions, 0 deletions
diff --git a/indra/newview/scripts/lua/test_mapargs.lua b/indra/newview/scripts/lua/test_mapargs.lua
new file mode 100644
index 0000000000..999a57acb4
--- /dev/null
+++ b/indra/newview/scripts/lua/test_mapargs.lua
@@ -0,0 +1,68 @@
+local mapargs = require 'mapargs'
+local inspect = require 'inspect'
+
+function tabfunc(...)
+    local a = mapargs({'a1', 'a2', 'a3'}, ...)
+    print(inspect(a))
+end
+
+print('----------')
+print('f(10, 20, 30)')
+tabfunc(10, 20, 30)
+print('f(10, nil, 30)')
+tabfunc(10, nil, 30)
+print('f{10, 20, 30}')
+tabfunc{10, 20, 30}
+print('f{10, nil, 30}')
+tabfunc{10, nil, 30}
+print('f{a3=300, a1=100}')
+tabfunc{a3=300, a1=100}
+print('f{1, a3=3}')
+tabfunc{1, a3=3}
+print('f{a3=3, 1}')
+tabfunc{a3=3, 1}
+print('----------')
+
+if false then
+    -- the code below was used to explore ideas that became mapargs()
+    mixed = { '[1]', nil, '[3]', abc='[abc]', '[3]', def='[def]' }
+    local function showtable(desc, t)
+        print(string.format('%s (len %s)\n%s', desc, #t, inspect(t)))
+    end
+    showtable('mixed', mixed)
+
+    print('ipairs(mixed)')
+    for k, v in ipairs(mixed) do
+        print(string.format('[%s] = %s', k, tostring(v)))
+    end
+
+    print('table.pack(mixed)')
+    print(inspect(table.pack(mixed)))
+
+    local function nilarg(desc, a, b, c)
+        print(desc)
+        print('a = ' .. tostring(a))
+        print('b = ' .. tostring(b))
+        print('c = ' .. tostring(c))
+    end
+
+    nilarg('nilarg(1)', 1)
+    nilarg('nilarg(1, nil, 3)', 1, nil, 3)
+
+    local function nilargs(desc, ...)
+        args = table.pack(...)
+        showtable(desc, args)
+    end
+
+    nilargs('nilargs{a=1, b=2, c=3}', {a=1, b=2, c=3})
+    nilargs('nilargs(1, 2, 3)', 1, 2, 3)
+    nilargs('nilargs(1, nil, 3)', 1, nil, 3)
+    nilargs('nilargs{1, 2, 3}', {1, 2, 3})
+    nilargs('nilargs{1, nil, 3}', {1, nil, 3})
+
+    print('table.unpack({1, nil, 3})')
+    a, b, c = table.unpack({1, nil, 3})
+    print('a = ' .. tostring(a))
+    print('b = ' .. tostring(b))
+    print('c = ' .. tostring(c))
+end