src/nitc.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2008 Jean Privat <jean@pryen.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # Nit compiler main module
  18 package nitc
  19
  20 import abstracttool
  21 import analysis
  22 import program
  23 private import compiling
  24 private import syntax
  25
  26 # The main class of the nitcompiler program
  27 class NitCompiler
  28 special AbstractCompiler
  29         readable var _opt_output: OptionString = new OptionString("Output file", "-o", "--output")
  30         readable var _opt_boost: OptionBool = new OptionBool("Optimize compilation", "-O", "--boost")
  31         readable var _opt_no_cc: OptionBool = new OptionBool("Do not invoke C compiler", "--no_cc")
  32         readable var _opt_global: OptionBool = new OptionBool("Use global compilation", "--global")
  33         readable var _opt_clibdir: OptionString = new OptionString("NIT C library directory", "--clibdir")
  34         readable var _opt_bindir: OptionString = new OptionString("NIT tools directory", "--bindir")
  35         readable var _opt_compdir: OptionString = new OptionString("Intermediate compilation directory", "--compdir")
  36         readable var _opt_extension_prefix: OptionString = new OptionString("Append prefix to file extension", "-p", "--extension-prefix")
  37         readable var _opt_dump: OptionBool = new OptionBool("Dump intermediate code", "--dump")
  38
  39         init
  40         do
  41                 super("nitc")
  42                 option_context.add_option(opt_output, opt_boost, opt_no_cc, opt_global, opt_clibdir, opt_bindir, opt_compdir, opt_extension_prefix, opt_dump)
  43         end
  44
  45         redef fun process_options
  46         do
  47                 super
  48                 output_file = opt_output.value
  49                 boost = opt_boost.value
  50                 no_cc = opt_no_cc.value
  51                 var ext = opt_extension_prefix.value
  52                 if ext != null then ext_prefix = ext else ext_prefix = ""
  53                 global = opt_global.value
  54                 compdir = opt_compdir.value
  55                 if compdir == null then
  56                         var dir = once ("NIT_COMPDIR".to_symbol).environ
  57                         if not dir.is_empty then
  58                                 compdir = dir
  59                         end
  60                         if compdir == null then
  61                                 compdir = ".nit_compile"
  62                         end
  63                 end
  64                 compdir += ext_prefix
  65
  66                 clibdir = opt_clibdir.value
  67                 if clibdir == null then
  68                         var dir = once ("NIT_DIR".to_symbol).environ
  69                         if dir.is_empty then
  70                                 dir = "{sys.program_name.dirname}/../clib"
  71                                 if dir.file_exists then clibdir = dir
  72                         else
  73                                 dir = "{dir}/clib"
  74                                 if dir.file_exists then clibdir = dir
  75                         end
  76                         if clibdir == null then
  77                                 fatal_error(null, "Error: Cannot locate NIT C library directory. Uses --clibdir or envvar NIT_DIR.")
  78                         end
  79                 end
  80                 bindir = opt_bindir.value
  81
  82                 if bindir == null then
  83                         var dir = once ("NIT_DIR".to_symbol).environ
  84                         if dir.is_empty then
  85                                 dir = "{sys.program_name.dirname}/../bin"
  86                                 if dir.file_exists then bindir = dir
  87                         else
  88                                 dir = "{dir}/bin"
  89                                 if dir.file_exists then bindir = dir
  90                         end
  91                         if bindir == null then
  92                                 fatal_error(null, "Error: Cannot locate NIT tools directory. Uses --bindir or envvar NIT_DIR.")
  93                         end
  94                 end
  95         end
  96
  97         fun dump_intermediate_code(mods: Collection[MMModule])
  98         do
  99                 for mod in mods do
 100                         for c in mod.local_classes do
 101                                 if not c isa MMConcreteClass then continue
 102                                 for p in c.local_local_properties do
 103                                         var routine: nullable IRoutine = null
 104                                         if p isa MMAttribute then
 105                                                 routine = p.iroutine
 106                                         else if p isa MMMethod then
 107                                                 routine = p.iroutine
 108                                         end
 109                                         if routine == null then continue
 110                                         print "**** Property {p.full_name} ****"
 111                                         var icd = new ICodeDumper
 112                                         routine.dump(icd)
 113                                         print "**** OPTIMIZE {p.full_name} ****"
 114                                         routine.optimize(mod)
 115                                         icd = new ICodeDumper
 116                                         routine.dump(icd)
 117                                 end
 118                         end
 119                 end
 120         end
 121
 122         redef fun perform_work(mods)
 123         do
 124                 if opt_dump.value then
 125                         dump_intermediate_code(mods)
 126                 end
 127                 for mod in mods do
 128                         var p = new Program(mod)
 129                         p.compute_main_method
 130                         p.do_table_computation(self)
 131                         p.generate_classes_init_to_icode
 132                         p.compile_prog_to_c(self)
 133                 end
 134         end
 135 end
 136
 137 var c = new NitCompiler
 138 c.exec_cmd_line