Class: FWI::Generator::CPP

Inherits:
Object
  • Object
show all
Defined in:
lib/fwi/compilers/cpp/gen.rb

Constant Summary collapse

TYPE_MAP = 
{
    :float64 => "double",
    :float32 => "float",
    :u64 => "uint64_t",
    :u32 => "uint32_t",
    :u16 => "uint16_t",
    :u8 => "uint8_t",
    :i64 => "int64_t",
    :i32 => "int32_t",
    :i16 => "int16_t",
    :i8 => "int8_t",
    :string => "char *",
    :bool => "bool"
}

Instance Method Summary collapse

Instance Method Details

#_func_util(mode, name, member, truncate = true, relative_types = true, fulltype = "") ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 54

def _func_util mode, name, member, truncate=true, relative_types=true, fulltype=""
    type = member[:type]
    type_sym = relative_types ? :reltype : :element_name

    ctype = TYPE_MAP[type]
    ctype = member[type_sym] + (member[:element_type] == :block ? " *" : "") if (member[:type] == :reference)
    ctype = member[:attribute_map]["ctype"] unless member[:attribute_map]["ctype"].nil?

    param = member[:array].nil? ? "" : "int index#{mode == :setter ? ', ' : ''}"
    custom_getter = member[:attribute_map]["getter"]
    custom_setter = member[:attribute_map]["setter"]
    custom_length = member[:attribute_map]["length_func"]
    prefix = relative_types ? "" : (fulltype + "::")
    func_name = prefix
    func_sig = ""
    if mode == :setter
        func_name += custom_setter.nil? ? "set_#{name}" : custom_setter
        func_sig = "FWIFUNC void #{func_name}(#{param}#{ctype} value)"
    elsif mode == :getter
        func_name += custom_getter.nil? ? "get_#{name}" : custom_getter
        func_sig = "FWIFUNC #{ctype} #{func_name}(#{param})"
    elsif mode == :length
        func_name += custom_length.nil? ? "#{name}_length" : custom_length
        func_sig = "FWIFUNC int #{func_name}(#{param})"
    end
    func_sig += truncate ? ";" : ' {'
    index = member[:index]
    index = "#{index} + (#{member[:typesize]} * index)" unless member[:array].nil?
    { :ctype => ctype, :prefix => prefix, :func_name => func_name, :func_sig => func_sig, :index => index }
end

#_get_for_file(bitmap, file) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 193

def _get_for_file bitmap, file
    map = { :members => {}, :type => :namespace }
    bitmap[:members].each do |name, member|
        if member[:type] == :namespace
            ret = _get_for_file member, file
            map[:members][name] = ret unless ret[:members].empty?
        else
            map[:members][name] = member if member[:file] == file
        end
    end
    map
end

#_write_fwd(name, namespace, indent, buffer) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 38

def _write_fwd name, namespace, indent, buffer
    append(buffer, indent, "namespace #{name} {")
    indent += 1
    namespace[:members].each do |name, child|
        _write_fwd_child name, child, indent, buffer
    end
    indent -= 1
    append(buffer, indent, "}")
end

#_write_fwd_child(name, child, indent, buffer) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 23

def _write_fwd_child name, child, indent, buffer
    if child[:type] == :namespace
        _write_fwd name, child, indent, buffer
    elsif child[:type] == :block
        append(buffer, indent, "struct #{name};")
    elsif child[:type] == :enum
        type = child[:reltype]
        append(buffer, indent, "enum class #{name} {")
        indent += 1
        append(buffer, indent, child[:members].map { |n| "#{n[:name]} = #{n[:val]}" }.join(",\n"))
        indent -= 1
        append(buffer, indent, "};")
    end
end

#append(buffer, indent, string) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 19

def append buffer, indent, string
    string.split(/\n/).each { |y| buffer << ("\t" * indent) + y + "\n" }
end

#gen_cpp(bitmap, cpp_ext, hpp_ext) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 305

def gen_cpp bitmap, cpp_ext, hpp_ext
    map = {}
    bitmap[:files].each do |name, file|
        filename = name.sub ".fwi", cpp_ext
        contents = "#include \"#{name.sub '.fwi', hpp_ext}\"\n\n"

        blocks = file[:blocks].map do |b|
            ref = bitmap
            name = ""
            b.split("::").each do |c|
                ref = ref[:members][c]
                name = c
            end
            { :name => name, :block => ref }
        end

        gen_cpp_for contents, 0, blocks

        map[filename] = contents
    end
    map
end

#gen_cpp_for(buffer, indent, blocks) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 256

def gen_cpp_for buffer, indent, blocks
    blocks.each do |obj|
        name = obj[:name]
        block = obj[:block]

        b_refs, mems = block[:members].partition { |x| x[:type] == :reference && x[:element_type] == :block }

        b_refs.each do |block_ref|
            write_getter buffer, block_ref[:name], block_ref, indent, false, false, block[:fulltype]
            buffer << "\n"
        end

        mems.each do |member_ref|
            write_getter buffer, member_ref[:name], member_ref, indent, false, false, block[:fulltype]
            if member_ref[:type] == :string
                write_length buffer, member_ref[:name], member_ref, indent, false, false, block[:fulltype]
            else
                write_setter buffer, member_ref[:name], member_ref, indent, false, false, block[:fulltype]
            end
            buffer << "\n"
        end

        buffer << "\n"

        write_ptr_update(buffer, b_refs, indent, false, (block[:fulltype] + "::"))
    end
end

#gen_hpp(bitmap, hpp_ext, hpp_only) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 284

def gen_hpp bitmap, hpp_ext, hpp_only
    map = {}
    bitmap[:files].each do |name, file|
        filename = name.sub ".fwi", hpp_ext
        contents = "#pragma once\n\n#include \"fwi.hpp\"\n"
        file[:imports].each do |import|
            append(contents, 0, "#include \"#{import.sub '.fwi', hpp_ext}\"")
        end
        contents << "\n" unless file[:imports].empty?

        filtered_bitmap = _get_for_file(bitmap, name)

        write_fwd_declarations contents, filtered_bitmap, 0
        contents << "\n"
        gen_hpp_for contents, 0, filtered_bitmap, hpp_only

        map[filename] = contents
    end
    map
end

#gen_hpp_for(buffer, indent, filtered, hpp_only) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 206

def gen_hpp_for buffer, indent, filtered, hpp_only
    namespace, object = filtered[:members].partition { |n,x| x[:type] == :namespace }

    object.select { |n,x| x[:type] == :block }.each do |name, block|
        append(buffer, indent, "struct #{name} : public FWI::Block {")
        indent += 1
        append(buffer, indent, "static const int SIZE = #{block[:size]};")
        b_refs, mems = block[:members].partition { |x| x[:type] == :reference && x[:element_type] == :block }
        buffer << "\n"

        trunc = !hpp_only

        b_refs.each do |block_ref|
            write_getter buffer, block_ref[:name], block_ref, indent, trunc, true
            buffer << "\n"
        end

        mems.each do |member_ref|
            write_getter buffer, member_ref[:name], member_ref, indent, trunc, true
            if member_ref[:type] == :string
                write_length buffer, member_ref[:name], member_ref, indent, trunc, true
            else
                write_setter buffer, member_ref[:name], member_ref, indent, trunc, true
            end
            buffer << "\n"
        end

        b_refs.each do |block_ref|
            if block_ref[:array].nil?
                append(buffer, indent, "#{block_ref[:reltype]} _#{block_ref[:name]};")
            else
                append(buffer, indent, "#{block_ref[:reltype]} _#{block_ref[:name]}[#{block_ref[:array]}];")
            end
        end

        buffer << "\n"

        write_ptr_update buffer, b_refs, indent, trunc

        indent -= 1
        append(buffer, indent, "}; // struct: #{name}")
    end

    namespace.each do |name, ns|
        append(buffer, indent, "namespace #{name} {")
        gen_hpp_for buffer, indent + 1, ns, hpp_only
        append(buffer, indent, "} // namespace: #{name}")
    end
end

#write_fwd_declarations(str, root, indent) ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 48

def write_fwd_declarations str, root, indent
    root[:members].each do |name, child|
        _write_fwd_child name, child, indent, str
    end
end

#write_getter(str, name, member, indent, truncate = true, relative_types = true, fulltype = "") ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 85

def write_getter str, name, member, indent, truncate=true, relative_types=true, fulltype=""
    return "" if member[:attributes].include? "no-getter"
    util = _func_util :getter, name, member, truncate, relative_types, fulltype

    append(str, indent, util[:func_sig])
    unless truncate
        type = member[:type]
        ctype = util[:ctype]

        indent += 1
        if type == :reference
            if member[:element_type] == :enum
                append(str, indent, "return (#{ctype})(_store[#{util[:index]}]);")
            else
                if member[:array].nil?
                    append(str, indent, "return &_#{member[:name]};")
                else
                    append(str, indent, "return &_#{member[:name]}[index];")
                end
            end
        elsif type == :string
            append(str, indent, "return (_store + #{util[:index]});")
        elsif type == :bool
            if member[:array].nil?
                append(str, indent, "return FWI_IS_BIT_SET(_store[#{util[:index]}], #{member[:bit_index]});")
            else
                append(str, indent, "return FWI_IS_BIT_SET(_store[#{member[:index]} + index / 8], index % 8);")
            end
        else
            append(str, indent, "return FWI_MEM_VAL(#{util[:ctype]}, _store, #{util[:index]});")
        end
        indent -= 1
        append(str, indent, "}")
    end
    str
end

#write_length(str, name, member, indent, truncate = true, relative_types = true, fulltype = "") ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 149

def write_length str, name, member, indent, truncate=true, relative_types=true, fulltype=""
    return "" if member[:attributes].include? "no-len"
    util = _func_util :length, name, member, truncate, relative_types, fulltype

    append(str, indent, util[:func_sig])
    unless truncate
        indent += 1
        append(str, indent, "return #{member[:size]};")
        indent -= 1
        append(str, indent, "}")
    end
    str
end

#write_ptr_update(buffer, b_refs, indent, truncate = true, prefix = "") ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 163

def write_ptr_update buffer, b_refs, indent, truncate=true, prefix=""
    unless b_refs.empty?
        virt = prefix.empty? ? "virtual " : ""
        if truncate
            append(buffer, indent, "#{virt}void #{prefix}_update_ptr();")
        else
            append(buffer, indent, "#{virt}void #{prefix}_update_ptr() {")
            indent += 1
            i_def = false
            b_refs.each do |ref|
                if ref[:array].nil?
                    append(buffer, indent, "_#{ref[:name]}.map_to(_store + #{ref[:index]});")
                else
                    unless i_def
                        i_def = true
                        append(buffer, indent, "int i;")
                    end
                    append(buffer, indent, "for (i = 0; i < #{ref[:array]}; i++) {")
                    indent += 1
                    append(buffer, indent, "_#{ref[:name]}[i].map_to(_store + #{ref[:index]} + (#{ref[:typesize]} * i));")
                    indent -= 1
                    append(buffer, indent, "}")
                end
            end
            indent -= 1
            append(buffer, indent, "}")
        end
    end
end

#write_setter(str, name, member, indent, truncate = true, relative_types = true, fulltype = "") ⇒ Object 



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# File 'lib/fwi/compilers/cpp/gen.rb', line 122

def write_setter str, name, member, indent, truncate=true, relative_types=true, fulltype=""
    return "" if member[:attributes].include? "no-setter"
    util = _func_util :setter, name, member, truncate, relative_types, fulltype

    append(str, indent, util[:func_sig])
    unless truncate
        type = member[:type]
        ctype = util[:ctype]

        indent += 1
        if type == :reference
            append(str, indent, "_store[#{util[:index]}] = (char)value;")
        elsif type == :bool
            if member[:array].nil?
                append(str, indent, "FWI_SET_BIT_TO(_store[#{util[:index]}], #{member[:bit_index]}, value ? 1 : 0);")
            else
                append(str, indent, "FWI_SET_BIT_TO(_store[#{member[:index]} + index / 8], index % 8, value ? 1 : 0);")
            end
        else
            append(str, indent, "FWI_MEM_VAL(#{ctype}, _store, #{util[:index]}) = value;")
        end
        indent -= 1
        append(str, indent, "}")
    end
    str
end