src/compiling/compiling.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 # Compute and generate tables for classes and modules.
  18 package compiling
  19
  20 import compiling_base
  21 private import compiling_methods
  22 private import compiling_global
  23 private import syntax
  24
  25 redef class MMSrcModule
  26         # Compile the program
  27         # Generate all sep files (_sep.[ch]), the main file (_table.c) and the build file (_build.sh)
  28         # Then execute the build.sh
  29         meth compile_prog_to_c(tc: ToolContext)
  30         do
  31                 for m in mhe.greaters_and_self do
  32                         assert m isa MMSrcModule
  33                         m.local_analysis(tc)
  34                 end
  35
  36                 var ga = global_analysis(tc)
  37
  38                 tc.compdir.mkdir
  39
  40                 var files = new Array[String]
  41                 var includes = new ArraySet[String]
  42                 files.add("$CLIBDIR/nit_main.c")
  43                 for m in mhe.greaters_and_self do
  44                         assert m isa MMSrcModule
  45                         files.add("{tc.compdir}/{m.name}._sep.c")
  46                         m.compile_separate_module(tc, ga)
  47                         var native_name = m.filename.strip_extension(".nit")
  48                         if (native_name + "_nit.h").file_exists then
  49                                 includes.add("-I {native_name.dirname}")
  50                         end
  51                         native_name += "_nit.c"
  52                         if native_name.file_exists then files.add(native_name)
  53                 end
  54
  55                 files.add("{tc.compdir}/{name}._tables.c")
  56                 compile_main(tc, ga)
  57
  58                 var fn = "{tc.compdir}/{name}._build.sh"
  59                 var f = new OFStream.open(fn)
  60                 f.write("#!/bin/sh\n")
  61                 f.write("# This shell script is generated by NIT to compile the program {name}.\n")
  62                 f.write("CLIBDIR=\"{tc.clibdir}\"\n")
  63                 f.write("{tc.bindir}/gccx -d {tc.compdir} -I $CLIBDIR {includes.join(" ")}")
  64                 if tc.output_file != null then
  65                         f.write(" -o {tc.output_file}")
  66                 else if tc.ext_prefix.is_empty then
  67                         f.write(" -o {name}")
  68                 else
  69                         f.write(" -o {name}_{tc.ext_prefix}")
  70                 end
  71                 if tc.boost then f.write(" -O")
  72                 f.write(" \"$@\" \\\n  {files.join("\\\n  ")}\n")
  73                 f.close
  74
  75                 if not tc.no_cc then
  76                         sys.system("sh {fn}")
  77                 end
  78         end
  79
  80         # Compile the main file
  81         private meth compile_main(tc: ToolContext, ga: GlobalAnalysis)
  82         do
  83                 var v = new GlobalCompilerVisitor(self, tc, ga)
  84                 v.add_decl("#include <nit_common.h>")
  85                 compile_tables_to_c(v)
  86                 compile_main_part(v)
  87                 var f = new OFStream.open("{tc.compdir}/{name}._tables.c")
  88                 f.write("/* This C file is generated by NIT to compile program {name}. */\n")
  89                 for m in mhe.greaters_and_self do
  90                         f.write("#include \"{m.name}._sep.h\"\n")
  91                 end
  92                 f.write(v.to_s)
  93                 f.close
  94         end
  95
  96         # Compile the sep files (of the current module only)
  97         private meth compile_separate_module(tc: ToolContext, ga: GlobalAnalysis)
  98         do
  99                 var v = new GlobalCompilerVisitor(self, tc, ga)
 100                 v.add_decl("#include <nit_common.h>")
 101                 var native_name = filename.strip_extension(".nit")
 102                 native_name += ("_nit.h")
 103                 if native_name.file_exists then v.add_decl("#include <{native_name.basename("")}>")
 104                 declare_class_tables_to_c(v)
 105                 compile_mod_to_c(v)
 106                 var f = new OFStream.open("{tc.compdir}/{name}._sep.h")
 107                 f.write("/* This C header file is generated by NIT to compile modules and programs that requires {name}. */\n")
 108                 f.write("#ifndef {name}_sep\n")
 109                 f.write("#define {name}_sep\n")
 110                 for m in mhe.direct_greaters do f.write("#include \"{m.name}._sep.h\"\n")
 111                 f.write(v.ctx.decls.join("\n"))
 112                 f.write("\n#endif\n")
 113                 f.close
 114                 var f = new OFStream.open("{tc.compdir}/{name}._sep.c")
 115                 f.write("/* This C file is generated by NIT to compile module {name}. */\n")
 116                 f.write("#include \"{name}._sep.h\"\n")
 117                 f.write(v.ctx.instrs.join("\n"))
 118                 f.write("\n")
 119                 f.close
 120         end
 121 end
 122