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annotate core/src/luan/init.luan @ 200:9fb218211763

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add Package.block(); add LuanException.getFullMessage(); git-svn-id: https://luan-java.googlecode.com/svn/trunk@201 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 03 Jul 2014 22:22:16 +0000
parents cf939124461a
children 5aafb5b9f70f
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1 import "Package"
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2 import "Basic"
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3 import "Table"
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4 import "Io"
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5
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6 function Package.global(module,fn_name)
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7 local function fn(...)
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8 return module[fn_name](...)
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9 end
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10 _G[fn_name] = fn
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11 return fn
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12 end
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13
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14 local require = Package.global(Package,"require")
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15 Package.global(Basic,"assert")
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16 Package.global(Basic,"assert_boolean")
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17 Package.global(Basic,"assert_nil")
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18 Package.global(Basic,"assert_number")
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19 Package.global(Basic,"assert_string")
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20 Package.global(Basic,"assert_table")
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21 local do_file = Package.global(Basic,"do_file")
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22 Package.global(Basic,"error")
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23 Package.global(Basic,"get_metatable")
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24 Package.global(Basic,"ipairs")
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25 local load = Package.global(Basic,"load")
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26 Package.global(Basic,"load_file")
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27 Package.global(Basic,"pairs")
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28 Package.global(Basic,"range")
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29 Package.global(Basic,"raw_equal")
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30 Package.global(Basic,"raw_get")
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31 Package.global(Basic,"raw_len")
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32 Package.global(Basic,"raw_set")
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33 Package.global(Basic,"repr")
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34 Package.global(Basic,"set_metatable")
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35 Package.global(Basic,"to_number")
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36 local to_string = Package.global(Basic,"to_string")
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37 Package.global(Basic,"type")
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38
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39 do_file "java:luan/version.luan"
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40
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41
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42 function Package.block(mod_name)
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43 local fn,path = Package.search(mod_name)
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44 if path == nil then
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45 error("module '"..mod_name.."' not found")
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46 end
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47 Package.block_lib(path)
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48 end
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49
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50 function Io.print_to(out,...)
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51 local list = {}
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52 for _,v in Basic.values(...) do
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53 list[#list+1] = to_string(v)
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54 list[#list+1] = '\t'
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55 end
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56 if #list == 0 then
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57 out.write( '\n' )
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58 else
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59 list[#list] = '\n'
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60 out.write( Table.unpack(list) )
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61 end
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62 end
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63
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64 function Basic.print(...)
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65 Io.print_to(Io.stdout,...)
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66 end
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67 local print = Package.global(Basic,"print")
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68
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69 local Debug = {}
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70 Package.loaded.Debug = Debug
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71 _G.Debug = Debug
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72
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73 function Debug.print_if_something(...)
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74 if Table.pack(...).n > 0 then
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75 print(...)
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76 end
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77 end
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78
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79 function Debug.debug(prompt)
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80 prompt = prompt or "luan_debug> "
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81 local function console()
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82 return Io.read_console_line(prompt)
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83 end
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84 local env = {}
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85 for line in console do
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86 try
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87 local fn = load(line,"stdin",env,true)
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88 Debug.print_if_something( fn() )
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89 catch e do
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90 print(e)
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91 end
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92 end
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93 end
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