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view framework/env/execute/wrapped.lua @ 559:318fdbb5f0f4

Add linefeed after raw_header in email
author jbe
date Tue Jun 09 13:25:29 2020 +0200 (2020-06-09)
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

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