rusefi
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debugger.lua
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Make dbg.pretty() overloadable.

This commit is contained in:
slembcke 2023-03-02 09:51:45 -06:00
parent 1ddfb6b29b
commit a37cc46213
2 changed files with 7 additions and 6 deletions
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1
README.md
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@ -81,6 +81,7 @@ There are several overloadable functions you can use to customize debugger.lua.
* `dbg.write(str)` - Write a string to the output. (Defaults to write to stdout)
* `dbg.shorten_path(path)` - Return a shortened version of a path. (Defaults to simply return `path`)
* `dbg.exit(err)` - Stop debugging. (Defaults to `os.exit(err)`)
* `dbg.pretty(obj)' - Output a pretty print string for an object. (Defaults to a reasonable version using __tostring metamethods and such)
Using these you can customize the debugger to work in your environment. For instance, you can divert the I/O over a network socket or to a GUI window.

12
debugger.lua
View File

@ -290,7 +290,7 @@ local function cmd_print(expr)
else
local output = ""
for i = 2, results.n do
output = output..(i ~= 2 and ", " or "")..pretty(results[i])
output = output..(i ~= 2 and ", " or "")..dbg.pretty(results[i])
end
if output == "" then output = "<no result>" end
@ -395,7 +395,7 @@ local function cmd_locals()
-- Skip the debugger object itself, "(*internal)" values, and Lua 5.2's _ENV object.
if not rawequal(v, dbg) and k ~= "_ENV" and not k:match("%(.*%)") then
dbg_writeln(" "..COLOR_BLUE..k.. GREEN_CARET..pretty(v))
dbg_writeln(" "..COLOR_BLUE..k.. GREEN_CARET..dbg.pretty(v))
end
end
@ -517,7 +517,7 @@ dbg.writeln = dbg_writeln
dbg.pretty_depth = 3
dbg.pretty = pretty
dbg.pp = function(value, depth) dbg_writeln(pretty(value, depth)) end
dbg.pp = function(value, depth) dbg_writeln(dbg.pretty(value, depth)) end
dbg.auto_where = false
dbg.auto_eval = false
@ -527,7 +527,7 @@ local lua_error, lua_assert = error, assert
-- Works like error(), but invokes the debugger.
function dbg.error(err, level)
level = level or 1
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..pretty(err))
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..dbg.pretty(err))
dbg(false, level, "dbg.error()")
lua_error(err, level)
@ -546,7 +546,7 @@ end
-- Works like pcall(), but invokes the debugger on an error.
function dbg.call(f, ...)
return xpcall(f, function(err)
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..pretty(err))
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..dbg.pretty(err))
dbg(false, 1, "dbg.call()")
return err
@ -556,7 +556,7 @@ end
-- Error message handler that can be used with lua_pcall().
function dbg.msgh(...)
if debug.getinfo(2) then
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..pretty(...))
dbg_writeln(COLOR_RED.."ERROR: "..COLOR_RESET..dbg.pretty(...))
dbg(false, 1, "dbg.msgh()")
else
dbg_writeln(COLOR_RED.."debugger.lua: "..COLOR_RESET.."Error did not occur in Lua code. Execution will continue after dbg_pcall().")