+++ /dev/null
-# This file is part of NIT ( http://www.nitlanguage.org ).
-#
-# Copyright 2008 Jean Privat <jean@pryen.org>
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Common things for NIT compilation and C generation
-module compiling_base
-
-import mmloader
-private import utils
-private import primitive_info
-import program
-import compiling_writer
-
-redef class ToolContext
- readable writable var _compdir: nullable String = null
- readable writable var _clibdir: nullable String = null
- readable writable var _bindir: nullable String = null
- readable writable var _output_file: nullable String = null
- readable writable var _boost: Bool = false
- readable writable var _no_cc: Bool = false
- readable writable var _cc_link: Bool = false
- readable writable var _cc_libs: Array[String] = new Array[String]
- readable writable var _cc_lib_paths: Array[String] = new Array[String]
- readable writable var _cc_include_paths: Array[String] = new Array[String]
- readable writable var _ext_prefix: String = ""
-end
-
-# A program that is compiled to C
-class CProgram
- init(p: Program)
- do
- _program = p
- _compdir = p.tc.compdir.as(not null)
- _build_file = "{compdir}/{program.main_module.cname}._build.sh"
- end
-
- # The Nit program compiled to C
- readable var _program: Program
-
- # C files (full path) required to compile
- readable var _files: Array[String] = new Array[String]
-
- # Includes paths (gcc -I) required to find the headers (.h) of native modules
- readable var _include_dirs: ArraySet[String] = new ArraySet[String]
-
- # The path of the building script
- readable var _build_file: String
-
- # The directory where all files are generated
- readable var _compdir: String
-
- # Return the basename of the public header file (.h) of a module
- fun module_header_name(m: MMModule): String
- do
- if _module_include.has_key(m) then
- return _module_include[m]
- end
- var filename = "{m.cname}.{get_file_ending}.h"
- _module_include[m] = filename
- return filename
- end
-
- # Cache for module_header_name
- var _module_include: Map[MMModule, String] = new HashMap[MMModule, String]
-
- # When we are using global compilation, we generate _glob files instead
- # of _sep files so that we do not corrupt separate compilation
- fun get_file_ending: String do return if program.tc.global then "_glob" else "_sep"
-
- # Generate the shell script that build the program by calling gccx
- fun generate_build_file
- do
- var f = new OFStream.open(_build_file)
- var verbose = ""
- var tc = program.tc
-
- if tc.verbose_level == 1 then
- verbose = "-v"
- else if tc.verbose_level >= 2 then
- # We catch tc.verbose_level >= 2, since 3+ is not valid with gccx
- verbose = "-vv"
- end
-
- # include compdir to find frontier files (._nitni.h) from native
- # implementations as .nit.h must have an import of <{name}._nitni.h>
- include_dirs.add( "-I {compdir}" )
-
- f.write("#!/bin/sh\n")
- f.write("# This shell script is generated by NIT to compile the program {program.main_module.full_name}.\n")
- f.write("CLIBDIR=\"{tc.clibdir.as(not null)}\"\n")
- f.write("{tc.bindir.as(not null)}/gccx {verbose} -d {compdir} -I $CLIBDIR {include_dirs.join(" ")}")
- if tc.output_file != null then
- f.write(" -o {tc.output_file.as(not null)}")
- else if tc.ext_prefix.is_empty then
- f.write(" -o {program.main_module.name}")
- else
- f.write(" -o {program.main_module.name}_{tc.ext_prefix}")
- end
- if tc.boost then f.write(" -O")
- if not tc.cc_link then f.write(" -x \"-c\"")
- for l in tc.cc_libs do f.write(" -l {l}")
- for lp in tc.cc_lib_paths do f.write(" -x \"-L {lp}\"")
- for ip in tc.cc_include_paths do f.write(" -x \"-I {ip}\"")
- f.write(" \"$@\" \\\n {files.join("\\\n ")}\n")
- f.close
- end
-
- # Invoke the build_file
- fun run_c_compiler
- do
- program.tc.info("Building",1)
- sys.system("sh {_build_file}")
- end
-end
-
-# Class used to generate files.
-# Note that in fact it is not a visitor.
-# Note also that this class is unefficient and poorly designed thus requires love.
-class CompilerVisitor
- # Add a line in the current declaration block
- fun add_decl(s: String)
- do
- add_line_to(_decl_writer, s)
- end
-
- # Add a line in the current instr block
- fun add_instr(s: String)
- do
- add_line_to(_writer, s)
- end
-
-
- fun add_indent(w: Writer)
- do
- if _indent_level >= 8 then
- w.add("\t\t")
- else
- for i in [0.._indent_level[ do
- w.add(" ")
- end
- end
- end
-
- fun add_line_to(w: Writer, s: String)
- do
- add_indent(w)
- w.add(s)
- w.add("\n")
- end
-
- # Add a assignment between a variable and an expression
- fun add_assignment(v: String, s: String)
- do
- if v != s then
- var w = _writer
- add_indent(w)
- w.add(v)
- w.add(" = ")
- w.add(s)
- w.add(";\n")
- end
- end
-
- # Return a unique new number for the instance
- fun new_number: Int
- do
- var res = _number_cpt
- _number_cpt = res + 1
- return res
- end
- # next number for new_number
- var _number_cpt: Int = 0
-
- # Add an indent level.
- # New decl and instr will be indented.
- fun indent do _indent_level += 1
-
- # Remove an indent level.
- fun unindent
- do
- _indent_level -= 1
- if _indent_level < 0 then _indent_level = 0
- end
-
- # The processed mmmodule
- readable var _mmmodule: MMModule
-
- # Where header decl are stored (public stuff)
- readable writable var _header_writer: Writer
-
- # Where current instr are stored (current function declaration)
- readable writable var _writer: Writer
-
- # Where current decl are stored (current function instructions)
- readable writable var _decl_writer: Writer
-
- # Where body instr are stored (C functions body)
- readable writable var _top_writer: Writer
-
- # Where body decl are stored (private C function proptypes and typedefs)
- readable writable var _top_decl_writer: Writer
-
- # The current indent lever
- readable writable var _indent_level: Int = 0
-
- # The program we are compiling
- readable var _program: Program
-
- # The cprogram associed with program
- readable var _cprogram: CProgram
-
- # Create a new CompilerVisitor based on a module
- init(mod: MMModule, cp: CProgram)
- do
- _mmmodule = mod
- _cprogram = cp
- _program = cp.program
-
- var w = new Writer
- _header_writer = w
- _decl_writer = w
- w = new Writer
- _writer = w
- _top_writer = w
- _top_decl_writer = w.sub
- end
-end
-
-redef class MMGlobalProperty
- # C symbol refering a method inocation
- fun meth_call: String
- do
- return "CALL_{intro.cname}"
- end
-
- # C symbol refering an attribure access
- fun attr_access: String
- do
- return "ATTR_{intro.cname}"
- end
-
- # C symbol refering a virtual type class color
- fun vt_class_color: String
- do
- return "VTCOLOR_{intro.cname}"
- end
-
- # C symbol refering a virtual type class id
- fun vt_class_id: String
- do
- return "VTID_{intro.cname}"
- end
-end
-
-redef class MMGlobalClass
- # Cacher result of cname
- var _cname_cache: nullable String
-
- # The mangled name of the global class
- fun cname: String
- do
- var cname = _cname_cache
- if cname == null then
- cname = intro.mmmodule.cname + "___" + cmangle(intro.name)
- _cname_cache = cname
- end
- return cname
- end
-
- # C symbol refering the identifier of the class
- fun id_id: String
- do
- return "ID_{cname}"
- end
-
- # C symbol refering the color of the class (for subtype tests)
- fun color_id: String
- do
- return "COLOR_{cname}"
- end
-
- # C symbol refering the init table position of the class (for constructor linearization)
- fun init_table_pos_id: String
- do
- return "INIT_TABLE_POS_{cname}"
- end
-end
-
-redef class MMModule
- # Cacher result of cname
- var _cname_cache: nullable String
-
- # The mangled name of the module
- fun cname: String
- do
- var cname = _cname_cache
- if cname == null then
- var l = new List[String]
- var m: nullable MMModule = self
- while m != null do
- l.unshift(cmangle(m.name))
- var d: nullable MMDirectory = m.directory
- while d != null and d.owner == m do d = d.parent
- if d == null then m = null else m = d.owner
- end
- cname = l.to_a.join("___")
- _cname_cache = cname
- end
- return cname
- end
-end
-
-redef class MMLocalClass
- # The mangled name of the global class
- fun cname: String do return global.cname
-end
-
-redef class MMLocalProperty
- # Cacher result of cname
- var _cname_cache: nullable String
-
- # The mangled name of the method
- fun cname: String
- do
- var cname = _cname_cache
- if cname == null then
- cname = mmmodule.cname + "___" + cmangle(local_class.name, name)
- _cname_cache = cname
- end
- return cname
- end
-
- # C macro used to get the function for the call of a super property
- fun super_meth_call: String
- do
- return "CALL_SUPER_{cname}"
- end
-end
-
nitlanguage / nit.git / blobdiff