webmcp
view framework/env/execute/wrapped.lua @ 58:e2b8f9dcc4a6
Bug fix in ui.form related to file upload
| author | bsw | 
|---|---|
| date | Sun Dec 18 22:19:40 2011 +0100 (2011-12-18) | 
| parents | 9fdfb27f8e67 | 
| children | 
 line source
     1 --[[--
     2 execute.wrapped(
     3   wrapper_func,   -- function with an execute.inner() call inside
     4   inner_func      -- function which is executed when execute.inner() is called
     5 )
     7 This function takes two functions as argument. The first function is executed, and must contain one call of execute.inner() during its execution. When execute.inner() is called, the second function is executed. After the second function finished, program flow continues in the first function.
     9 --]]--
    11 function execute.wrapped(wrapper_func, inner_func)
    12   if
    13     type(wrapper_func) ~= "function" or
    14     type(inner_func) ~= "function"
    15   then
    16     error("Two functions need to be passed to execute.wrapped(...).")
    17   end
    18   local stack = execute._wrap_stack
    19   local pos = #stack + 1
    20   stack[pos] = inner_func
    21   wrapper_func()
    22   -- if stack[pos] then
    23   --   error("Wrapper function did not call execute.inner().")
    24   -- end
    25   stack[pos] = nil
    26 end
