1 files changed, 0 insertions, 55 deletions
diff --git a/etc/setfallback.lua b/etc/setfallback.lua
deleted file mode 100644
index 783b8667..00000000
--- a/etc/setfallback.lua
+++ /dev/null
@@ -1,55 +0,0 @@
---------------------------------------------------------------
--- Definition of "setfallback" using tag methods
--- (for compatibility with old code)
---------------------------------------------------------------
-
-
--- default fallbacks for each event:
-local defaults = {
-  gettable = function () error('indexed expression not a table') end,
-  settable = function () error('indexed expression not a table') end,
-  index = function () return nil end,
-  getglobal = function () return nil end,
-  arith = function () error('number expected in arithmetic operation') end,
-  order = function () error('incompatible types in comparison') end,
-  concat = function () error('string expected in concatenation') end,
-  gc = function () return nil end,
-  ['function'] = function () error('called expression not a function') end,
-  error = function (s) write(_STDERR, s, '\n') end,
-}
-
-
-function setfallback (name, func)
-
-  -- set the given function as the tag method for all "standard" tags
-  -- (since some combinations may cause errors, use call to avoid messages)
-  local fillvalids = function (n, func)
-    call(settagmethod, {0, n, func}, 'x', nil)
-    call(settagmethod, {tag(0), n, func}, 'x', nil)
-    call(settagmethod, {tag(''), n, func}, 'x', nil)
-    call(settagmethod, {tag{}, n, func}, 'x', nil)
-    call(settagmethod, {tag(function () end), n, func}, 'x', nil)
-    call(settagmethod, {tag(settagmethod), n, func}, 'x', nil)
-    call(settagmethod, {tag(nil), n, func}, 'x', nil)
-  end
-
-  assert(type(func) == 'function')
-  local oldfunc
-  if name == 'error' then
-    oldfunc = seterrormethod(func)
-  elseif name == 'getglobal' then
-    oldfunc = settagmethod(tag(nil), 'getglobal', func)
-  elseif name == 'arith' then
-    oldfunc = gettagmethod(tag(0), 'pow')
-    foreach({"add", "sub", "mul", "div", "unm", "pow"},
-            function(_, n) %fillvalids(n, %func) end)
-  elseif name == 'order' then
-    oldfunc = gettagmethod(tag(nil), 'lt')
-    foreach({"lt", "gt", "le", "ge"},
-            function(_, n) %fillvalids(n, %func) end)
-  else
-    oldfunc = gettagmethod(tag(nil), name)
-    fillvalids(name, func)
-  end
-  return oldfunc or rawgettable(%defaults, name)
-end