webmcp
view framework/env/execute/inner.lua @ 155:185e944182cb
Better C macros for null-marker in JSON library
| author | jbe | 
|---|---|
| date | Thu Jul 31 03:18:04 2014 +0200 (2014-07-31) | 
| parents | 9fdfb27f8e67 | 
| children | 1fcdd5c6f498 | 
 line source
     1 --[[--
     2 execute.inner()
     4 It is MANDATORY to call this function once in each filter of a WebMCP application. Calling execute.inner() calls the next filter in the filter chain, or the view or action, if there are no more filters following. Code executed BEFORE calling this function is executed BEFORE the view or action, while code executed AFTER calling this function is executed AFTER the view of action.
     6 --]]--
     8 function execute.inner()
     9   local stack = execute._wrap_stack
    10   local pos = #stack
    11   if pos == 0 then
    12     error("Unexpected call of execute.inner().")
    13   end
    14   local inner_func = stack[pos]
    15   if not inner_func then
    16     error("Repeated call of execute.inner().")
    17   end
    18   stack[pos] = false
    19   inner_func()
    20 end
