kc3-lang/kc3/libc3/tag_init.rb

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• Hash : 44f16529
  Author : Thomas de Grivel
  Date : 2023-12-14T01:13:47
  

  wip struct

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• libc3/tag_init.rb

• #!/usr/bin/env ruby
  
  class Arg
    attr_reader :name
    attr_reader :type
    attr_reader :type_space
  
    def initialize(type, name)
      @type = type
      @name = name
      @type_space = type.match?(/\*$/) ? type : "#{type} "
    end
  end
  
  class TagInit
    attr_reader :args
    attr_reader :args_list
    attr_reader :args_proto
    attr_reader :args_proto_comma
    attr_reader :args_ptr
    attr_reader :comma_args
    attr_reader :comma_args_proto
    attr_reader :data_name
    attr_reader :first_arg_deref
    attr_reader :init_mode
    attr_reader :name
    attr_reader :name_suffix
    attr_reader :suffix
    attr_reader :tag_type
  
    def initialize(name, suffix = nil, tag_type, init_mode, args_list)
      @name = name
      @suffix = suffix ? "_#{suffix}" : nil
      @tag_type = tag_type
      @init_mode = init_mode
      @args_list = args_list
  
      @args = ""
      @args_ptr = ""
      @args_proto = ""
      @args_proto_comma = ""
      @comma_args = ""
      @comma_args_proto = ""
      @data_name = @name == "struct" ? "struct_" : @name
  
      @args_list.each do |arg|
        @first_arg_deref ||= arg.type != "const s_sym *" &&
                             arg.type != "s_list *" &&
                             arg.type.match?(/\*$/) ?
                               "*#{arg.name}" : arg.name
        @args = @args == "" ? arg.name : "#{@args}, #{arg.name}"
        arg_ptr = "&#{arg.name}"
        @args_ptr = @args_ptr == "" ? arg_ptr : "#{@args_ptr}, #{arg_ptr}"
        arg_proto = "#{arg.type_space}#{arg.name}"
        @args_proto = @args_proto == "" ? arg_proto :
                        "#{@args_proto}, #{arg_proto}"
        @comma_args = "#{@comma_args}, #{arg.name}"
        @comma_args_proto = "#{@comma_args_proto}, #{arg_proto}"
        @args_proto_comma = "#{@args_proto_comma}#{arg_proto}, "
      end
  
      @args_proto = "void" if @args_proto == ""
  
      @name_suffix = "#{name}#{@suffix}"
  end
  
    def tag_proto
      "s_tag * tag_#{name_suffix} (s_tag *tag#{comma_args_proto});"
    end
  
    def tag_init_proto
      "s_tag * tag_init_#{name_suffix} (s_tag *tag#{comma_args_proto});"
    end
  
    def tag_new_proto
      "s_tag * tag_new_#{name_suffix} (#{args_proto});"
    end
  
    def with_list?
      ! ["1", "copy", "list"].include?(name)
    end
  
    def list_proto
      if with_list?
        "s_list * list_#{name_suffix} (s_list *list#{comma_args_proto});"
      else
        ""
      end
    end
    
    def list_init_proto
      if with_list?
        "s_list * list_init_#{name_suffix} (s_list *list#{comma_args_proto}, s_list *next);"
      else
        ""
      end
    end
  
    def list_new_proto
      if with_list?
        "s_list * list_new_#{name_suffix} (#{args_proto_comma}s_list *next);"
      else
        ""
      end
    end
  
    def def_tag
      <<EOF
  
  #{tag_proto[0..-2]}
  {
    s_tag tmp = {0};
    assert(tag);
    tag_clean(tag);
    #{tag_type ? "tmp.type = #{tag_type};\n" : ""}#{def_tag_init_init}  *tag = tmp;
    return tag;
  }
  EOF
    end
  
    def def_tag_init
      <<EOF
  
  #{tag_init_proto[0..-2]}
  {
    s_tag tmp = {0};
    assert(tag);
    #{tag_type ? "tmp.type = #{tag_type};\n" : ""}#{def_tag_init_init}  *tag = tmp;
    return tag;
  }
  EOF
    end
  
    def def_tag_init_init
      case init_mode
      when :init_mode_none
        ""
      when :init_mode_init
        "  if (! #{name}_init#{suffix}(#{name == "list" ? "" : "&"}tmp.data.#{data_name}#{comma_args}))
      return NULL;
  "
      when :init_mode_direct
        "  tmp.data.#{name} = #{first_arg_deref};
  "
      when :init_mode_buf_parse
        "  s_buf buf;
    uw len;
    sw r;
    len = strlen(p);
    if (! buf_init(&buf, false, len, p))
      return NULL;
    if ((r = buf_parse_#{name}(&buf, &tmp.data.#{data_name}) < 0)
      return NULL;
    else if (r != len) {
      #{name}_clean(&tmp);
      return NULL;
    }
  "
      else
        raise "unknown init mode: #{init_mode}"
      end
    end
  
    def def_tag_new
      <<EOF
  
  #{tag_new_proto[0..-2]}
  {
    s_tag *tag;
    if (! (tag = calloc(1, sizeof(s_tag)))) {
      warn("tag_new_#{name_suffix}: calloc");
      return NULL;
    }
    #{tag_type ? "tag->type = #{tag_type};\n" : ""}#{def_tag_new_init}  return tag;
  }
  EOF
    end
  
    def def_tag_new_init
      case init_mode
      when :init_mode_none
        ""
      when :init_mode_init
        "  if (! #{name}_init#{suffix}(#{name == "list" ? "" : "&"}tag->data.#{data_name}#{comma_args})) {
      free(tag);
      return NULL;
    }
  "
      when :init_mode_direct
        "  tag->data.#{data_name} = #{first_arg_deref};
  "
      when :init_mode_buf_parse
        "  s_buf buf;
    uw len;
    sw r;
    len = strlen(p);
    if (! buf_init(&buf, false, len, p))
      return NULL;
    if ((r = buf_parse_#{name}(&buf, &tmp.data.#{data_name}) < 0)
      return NULL;
    else if (r != len) {
      #{name}_clean(&tmp);
      return NULL;
    }
  "
      else
        raise "unknown init mode: #{init_mode}"
      end
    end
  
    def def_list_init
      if with_list?
        <<EOF
  
  #{list_init_proto[0..-2]}
  {
    s_list tmp;
    assert(list);
    list_init(&tmp, next);
    if (! tag_init_#{name_suffix}(&tmp.tag#{comma_args}))
      return NULL;
    *list = tmp;
    return list;
  }
  EOF
      end
    end
  
    def def_list_new
      if with_list?
        <<EOF
  
  #{list_new_proto[0..-2]}
  {
    s_list *list;
    list = list_new(next);
    if (! list)
      return NULL;
    if (! tag_init_#{name_suffix}(&list->tag#{comma_args})) {
      free(list);
      return NULL;
    }
    return list;
  }
  EOF
      end
    end
  end
  
  class TagInitProto < TagInit
    def def_tag_init
      ""
    end
  
    def def_tag_new
      ""
    end
  
    def def_tag
      ""
    end
  
    def def_list_init
      ""
    end
  
    def def_list_new
      ""
    end
  end
  
  class TagInit1 < TagInit
    def initialize(name, suffix, tag_type, init_mode = :init_mode_init,
                   args_list = [Arg.new("const s8 *", "p")])
      super(name, suffix, tag_type, init_mode, args_list)
    end
  end
  
  class FileUpdate
    attr_reader   :path
    attr_accessor :content
    attr_reader   :content_old
  
    def initialize(path)
      @path = path
      @content_old = (File.read(path) rescue "")
    end
  
    def commit
      if @content != @content_old
        puts @path
        File.rename(@path, "#{@path}~") if File.exist?(@path)
        File.write(@path, @content)
      end
    end
  end
  
  class TagInitList
    attr_accessor :items
  
    def self.all
      new(
        [TagInit.new("array", "TAG_ARRAY", :init_mode_init,
                     [Arg.new("const s_sym *", "type"),
                      Arg.new("uw", "dimension"),
                      Arg.new("const uw *", "dimensions")]),
         TagInit.new("bool", "TAG_BOOL", :init_mode_direct,
                     [Arg.new("bool", "b")]),
         TagInit.new("call", "TAG_CALL", :init_mode_init, []),
         TagInit.new("character", "TAG_CHARACTER", :init_mode_direct,
                     [Arg.new("character", "c")]),
         TagInitProto.new("copy", nil, :init_mode_none,
                          [Arg.new("const s_tag *", "src")]),
         TagInit.new("f32", "TAG_F32", :init_mode_direct,
                     [Arg.new("f32", "f")]),
         TagInit.new("f64", "TAG_F64", :init_mode_direct,
                     [Arg.new("f64", "f")]),
         TagInit.new("ident", "TAG_IDENT", :init_mode_direct,
                     [Arg.new("const s_ident *", "ident")]),
         TagInit1.new("ident", "1", "TAG_IDENT", :init_mode_init),
  #       TagInit.new("integer", "TAG_INTEGER", :init_mode_init, []),
         TagInit1.new("integer", "1", "TAG_INTEGER", :init_mode_init),
         TagInit.new("integer", "copy", "TAG_INTEGER", :init_mode_init,
                     [Arg.new("const s_integer *", "i")]),
         TagInit.new("integer", "zero", "TAG_INTEGER", :init_mode_init,
                     []),
         TagInit.new("list", "TAG_LIST", :init_mode_direct,
                     [Arg.new("s_list *", "list")]),
  #       TagInit1.new("list", "1", "TAG_LIST", :init_mode_init,
  #                    [Arg.new("const s8 *", "p"),
  #                     Arg.new("s_list *", "next")]),
         TagInit.new("map", "TAG_MAP", :init_mode_init,
                     [Arg.new("uw", "count")]),
         TagInit1.new("map", "1", "TAG_MAP", :init_mode_init),
         TagInit.new("ptr", "TAG_PTR", :init_mode_init,
                     [Arg.new("void *", "p")]),
         TagInit.new("ptr_free", "TAG_PTR_FREE", :init_mode_init,
                     [Arg.new("void *", "p")]),
         TagInit.new("s8", "TAG_S8", :init_mode_direct,
                     [Arg.new("s8", "i")]),
         TagInit.new("s16", "TAG_S16", :init_mode_direct,
                     [Arg.new("s16", "i")]),
         TagInit.new("s32", "TAG_S32", :init_mode_direct,
                     [Arg.new("s32", "i")]),
         TagInit.new("s64", "TAG_S64", :init_mode_direct,
                     [Arg.new("s64", "i")]),
         TagInit.new("str", "TAG_STR", :init_mode_init,
                     [Arg.new("s8 *", "p_free"),
                      Arg.new("uw", "size"),
                      Arg.new("const s8 *", "p")]),
         TagInit.new("str", "1", "TAG_STR", :init_mode_init,
                     [Arg.new("s8 *", "p_free"),
                      Arg.new("const s8 *", "p")]),
         TagInit.new("struct", "TAG_STRUCT", :init_mode_init,
                     [Arg.new("const s_sym *", "module")]),
         TagInit.new("struct", "with_data", "TAG_STRUCT", :init_mode_init,
                     [Arg.new("const s_sym *", "module"),
                      Arg.new("bool", "free_data"),
                      Arg.new("void *", "data")]),
         TagInit.new("sw", "TAG_SW", :init_mode_direct,
                     [Arg.new("sw", "i")]),
         TagInit.new("sym", "TAG_SYM", :init_mode_direct,
                     [Arg.new("const s_sym *", "sym")]),
         TagInit1.new("sym", "1", "TAG_SYM", :init_mode_init),
         TagInit.new("tuple", "TAG_TUPLE", :init_mode_init,
                     [Arg.new("uw", "count")]),
         TagInit.new("tuple", "2", "TAG_TUPLE", :init_mode_init,
                     [Arg.new("const s_tag *", "a"),
                      Arg.new("const s_tag *", "b")]),
         TagInitProto.new("time", "TAG_TIME", :init_mode_none, []),
         TagInit.new("u8", "TAG_U8", :init_mode_direct,
                     [Arg.new("u8", "i")]),
         TagInit.new("u16", "TAG_U16", :init_mode_direct,
                     [Arg.new("u16", "i")]),
         TagInit.new("u32", "TAG_U32", :init_mode_direct,
                     [Arg.new("u32", "i")]),
         TagInit.new("u64", "TAG_U64", :init_mode_direct,
                     [Arg.new("u64", "i")]),
         TagInit.new("uw", "TAG_UW", :init_mode_direct,
                     [Arg.new("uw", "i")]),
         TagInit.new("var", "TAG_VAR", :init_mode_none, []),
         TagInit.new("void", "TAG_VOID", :init_mode_none, [])])
    end
  
    def initialize(items)
      @items = items
    end
  
    def tag_proto
      protos = @items.map &:tag_proto
      protos.join "\n"
    end
  
    def tag_init_proto
      protos = @items.map &:tag_init_proto
      protos.join "\n"
    end
  
    def tag_new_proto
      protos = @items.map &:tag_new_proto
      protos.join "\n"
    end
  
    def list_proto
      protos = @items.map &:list_proto
      protos.join "\n"
    end
  
    def list_init_proto
      protos = @items.map &:list_init_proto
      protos.join "\n"
    end
  
    def list_new_proto
      protos = @items.map &:list_new_proto
      protos.join "\n"
    end
  
    def def_tag
      protos = @items.map &:def_tag
      protos.join
    end
  
    def def_tag_init
      protos = @items.map &:def_tag_init
      protos.join
    end
  
    def def_tag_new
      protos = @items.map &:def_tag_new
      protos.join
    end
  
    def def_list_init
      protos = @items.map &:def_list_init
      protos.join
    end
  
    def def_list_new
      protos = @items.map &:def_list_new
      protos.join
    end
  end
  
  $license = File.read("../license.h").strip
  
  def h_header(name)
    "#{$license}
  #ifndef #{name}
  #define #{name}
  
  #include \"types.h\""
  end
  
  def h_footer(name)
    "#endif /* #{name} */"
  end
  
  class String
    def c_word_wrap
      lines = split("\n")
      wrapped_lines = []
      lines.each do |line|
        rest = line
        while rest.length > 72
          space_pos = rest[0..71].rindex(/,\s/)
          space_pos += 1 if space_pos
          space_pos ||= rest[0..71].rindex(/[\*\s]/)
          line1 = rest[0..space_pos]
          rest = rest[(space_pos + 1)..(rest.length - 1)]
          wrapped_lines += [line1]
          index = line1.rindex(/[\(\{\[]/)
          if index
            paren_pos = index + 1
          end
          rest = paren_pos ? (" " * paren_pos + rest) : rest
        end
        wrapped_lines += [rest]
      end
      wrapped_lines.join("\n")
    end
  end
  
  inits = TagInitList.all
  
  tag_init_c = FileUpdate.new("tag_init.c")
  tag_init_c.content = <<EOF
  #{$license}
  #include <assert.h>
  #include <err.h>
  #include <string.h>
  #include "array.h"
  #include "buf.h"
  #include "buf_inspect.h"
  #include "buf_parse.h"
  #include "call.h"
  #include "cfn.h"
  #include "compare.h"
  #include "env.h"
  #include "fn.h"
  #include "frame.h"
  #include "hash.h"
  #include "ident.h"
  #include "integer.h"
  #include "list.h"
  #include "map.h"
  #include "ptr.h"
  #include "ptr_free.h"
  #include "quote.h"
  #include "str.h"
  #include "struct.h"
  #include "tag.h"
  #include "tag_init.h"
  #include "time.h"
  #include "tuple.h"
  #{inits.def_tag_init.c_word_wrap}
  #{inits.def_tag_new.c_word_wrap}
  #{inits.def_tag.c_word_wrap}
  EOF
  tag_init_c.commit
  
  tag_init_h = FileUpdate.new("tag_init.h")
  tag_init_h.content = """#{h_header("LIBC3_TAG_INIT_H")}
  
  /* Stack-allocation compatible functions, call tag_clean after use. */
  #{inits.tag_init_proto.c_word_wrap}
  
  /* Heap-allocation functions, call tag_delete after use. */
  #{inits.tag_new_proto.c_word_wrap}
  
  /* Setters. */
  #{inits.tag_proto.c_word_wrap}
  
  #{h_footer("LIBC3_TAG_INIT_H")}
  """
  tag_init_h.commit
  
  list_init_c = FileUpdate.new("list_init.c")
  list_init_c.content = <<EOF
  #{$license}
  #include <assert.h>
  #include <err.h>
  #include <string.h>
  #include "array.h"
  #include "buf.h"
  #include "buf_inspect.h"
  #include "buf_parse.h"
  #include "call.h"
  #include "cfn.h"
  #include "compare.h"
  #include "env.h"
  #include "fn.h"
  #include "frame.h"
  #include "hash.h"
  #include "ident.h"
  #include "integer.h"
  #include "list.h"
  #include "map.h"
  #include "ptr.h"
  #include "ptr_free.h"
  #include "quote.h"
  #include "str.h"
  #include "struct.h"
  #include "tag.h"
  #include "list_init.h"
  #include "time.h"
  #include "tuple.h"
  #{inits.def_list_init.c_word_wrap}
  #{inits.def_list_new.c_word_wrap}
  EOF
  list_init_c.commit
  
  list_init_h = FileUpdate.new("list_init.h")
  list_init_h.content = """#{h_header("LIBC3_LIST_INIT_H")}
  
  /* Stack-allocation compatible functions, call list_clean after use. */
  #{inits.list_init_proto.c_word_wrap}
  
  /* Heap-allocation functions, call list_delete after use. */
  #{inits.list_new_proto.c_word_wrap}
  
  /* Setters. */
  #{inits.list_proto.c_word_wrap}
  
  #{h_footer("LIBC3_LIST_INIT_H")}
  """
  list_init_h.commit
  

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