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_global_no_STF_opt: OptionBool = new OptionBool("Do not use SFT optimization", "--no-global-SFT-optimization")
  34         readable var _opt_global_no_DMR_opt: OptionBool = new OptionBool("Do not use dead method removal optimization", "--no-global-DMR-optimization")
  35         readable var _opt_global_no_inline_get_set: OptionBool = new OptionBool("Do not automatically inline getters/setters", "--no-global-get-set-inlining")
  36         readable var _opt_global_no_RFIMA: OptionBool = new OptionBool("Do not use a specialized algorithm to find reachable methods from initializers", "--no-global-RFIM-analysis")
  37         readable var _opt_global_callgraph: OptionEnum = new OptionEnum(["none", "cha", "rta"], "The algorithm to use to build the callgraph", 2, "--global-callgraph")
  38         readable var _opt_clibdir: OptionString = new OptionString("NIT C library directory", "--clibdir")
  39         readable var _opt_bindir: OptionString = new OptionString("NIT tools directory", "--bindir")
  40         readable var _opt_compdir: OptionString = new OptionString("Intermediate compilation directory", "--compdir")
  41         readable var _opt_extension_prefix: OptionString = new OptionString("Append prefix to file extension", "-p", "--extension-prefix")
  42         readable var _opt_dump: OptionBool = new OptionBool("Dump intermediate code", "--dump")
  43
  44         init
  45         do
  46                 super("nitc")
  47                 option_context.add_option(opt_output, opt_boost, opt_no_cc, opt_global, opt_clibdir, opt_bindir, opt_compdir, opt_extension_prefix, opt_dump, opt_global_no_STF_opt, opt_global_no_DMR_opt, opt_global_callgraph, opt_global_no_inline_get_set, opt_global_no_RFIMA)
  48         end
  49
  50         redef fun process_options
  51         do
  52                 super
  53                 output_file = opt_output.value
  54                 boost = opt_boost.value
  55                 no_cc = opt_no_cc.value
  56                 var ext = opt_extension_prefix.value
  57                 if ext != null then ext_prefix = ext else ext_prefix = ""
  58                 global = opt_global.value
  59                 use_SFT_optimization = not opt_global_no_STF_opt.value
  60                 no_dead_method_removal = opt_global_no_DMR_opt.value
  61                 no_inline_get_set = opt_global_no_inline_get_set.value
  62                 no_callgraph_from_init = opt_global_no_RFIMA.value
  63                 global_callgraph = opt_global_callgraph.value_name
  64                 compdir = opt_compdir.value
  65                 if compdir == null then
  66                         var dir = once ("NIT_COMPDIR".to_symbol).environ
  67                         if not dir.is_empty then
  68                                 compdir = dir
  69                         end
  70                         if compdir == null then
  71                                 compdir = ".nit_compile"
  72                         end
  73                 end
  74                 compdir += ext_prefix
  75
  76                 clibdir = opt_clibdir.value
  77                 if clibdir == null then
  78                         var dir = once ("NIT_DIR".to_symbol).environ
  79                         if dir.is_empty then
  80                                 dir = "{sys.program_name.dirname}/../clib"
  81                                 if dir.file_exists then clibdir = dir
  82                         else
  83                                 dir = "{dir}/clib"
  84                                 if dir.file_exists then clibdir = dir
  85                         end
  86                         if clibdir == null then
  87                                 fatal_error(null, "Error: Cannot locate NIT C library directory. Uses --clibdir or envvar NIT_DIR.")
  88                         end
  89                 end
  90                 bindir = opt_bindir.value
  91
  92                 if bindir == null then
  93                         var dir = once ("NIT_DIR".to_symbol).environ
  94                         if dir.is_empty then
  95                                 dir = "{sys.program_name.dirname}/../bin"
  96                                 if dir.file_exists then bindir = dir
  97                         else
  98                                 dir = "{dir}/bin"
  99                                 if dir.file_exists then bindir = dir
 100                         end
 101                         if bindir == null then
 102                                 fatal_error(null, "Error: Cannot locate NIT tools directory. Uses --bindir or envvar NIT_DIR.")
 103                         end
 104                 end
 105         end
 106
 107         fun dump_intermediate_code(mods: Collection[MMModule])
 108         do
 109                 for mod in mods do
 110                         for c in mod.local_classes do
 111                                 if not c isa MMConcreteClass then continue
 112                                 for p in c.local_local_properties do
 113                                         var routine: nullable IRoutine = null
 114                                         if p isa MMAttribute then
 115                                                 routine = p.iroutine
 116                                         else if p isa MMMethod then
 117                                                 routine = p.iroutine
 118                                         end
 119                                         if routine == null then continue
 120                                         print "**** Property {p.full_name} ****"
 121                                         var icd = new ICodeDumper
 122                                         routine.dump(icd)
 123                                         print "**** OPTIMIZE {p.full_name} ****"
 124                                         routine.optimize(mod)
 125                                         icd = new ICodeDumper
 126                                         routine.dump(icd)
 127                                 end
 128                         end
 129                 end
 130         end
 131
 132         redef fun perform_work(mods)
 133         do
 134                 if opt_dump.value then
 135                         dump_intermediate_code(mods)
 136                 end
 137                 for mod in mods do
 138                         var p = new Program(mod, self)
 139                         p.compute_main_method
 140                         p.generate_allocation_iroutines
 141                         if global then
 142                                 p.do_global_pre_analysis_optimizations
 143                                 p.do_global_analysis
 144                                 p.do_global_post_analysis_optimizations
 145                                 if opt_log.value then
 146                                         p.dump_global_analysis_information(log_directory)
 147                                 end
 148                         end
 149                         p.do_table_computation
 150                         p.compile_prog_to_c
 151                 end
 152         end
 153 end
 154
 155 var c = new NitCompiler
 156 c.exec_cmd_line