webmcp
view framework/env/execute/inner.lua @ 29:0b7e87f2dc91
add trace.debug_traceback() function
It inserts a traceback into the trace debug log. Usefull on development of unknown code.
It inserts a traceback into the trace debug log. Usefull on development of unknown code.
| author | Daniel Poelzleithner <poelzi@poelzi.org> |
|---|---|
| date | Mon Sep 20 15:29:23 2010 +0200 (2010-09-20) |
| 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