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annotate core/src/luan/modules/Debug.luan @ 326:db37d6aee4db

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remove try-catch statement; add Luan.try() and Luan.pcall(); git-svn-id: https://luan-java.googlecode.com/svn/trunk@327 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 19 Mar 2015 00:01:57 +0000
parents f8ece87df2b1
children 92c3d22745b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 321
diff changeset
1 local Luan = require "luan:Luan"
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 321
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2 local load = Luan.load
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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3 local try = Luan.try
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 300
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4 local Io = require "luan:Io"
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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5 local print = Io.print
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 321
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6 local Table = require "luan:Table"
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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9 function print_if_something(...)
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10 if Table.pack(...).n > 0 then
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11 print(...)
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12 end
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13 end
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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15 function debug(prompt)
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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16 prompt = prompt or "luan_debug> "
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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17 local function console()
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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18 return Io.read_console_line(prompt)
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19 end
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20 local env = {}
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21 for line in console do
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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22 try {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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23 function()
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parents: 322
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24 local fn = load(line,"stdin",env,true)
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parents: 322
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25 print_if_something( fn() )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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26 end;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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27 catch = function(e)
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parents: 322
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28 print(e)
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 322
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29 end;
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parents: 322
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30 }
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31 end
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32 end
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