Class: Beefcake::Generator
- Inherits:
-
Object
- Object
- Beefcake::Generator
- Defined in:
- lib/beefcake/generator.rb
Constant Summary collapse
- L =
CodeGeneratorRequest::FieldDescriptorProto::Label
- T =
CodeGeneratorRequest::FieldDescriptorProto::Type
Instance Attribute Summary collapse
-
#c ⇒ Object
readonly
Returns the value of attribute c.
Class Method Summary collapse
Instance Method Summary collapse
- #compile(ns, file) ⇒ Object
- #define!(mt) ⇒ Object
- #enum!(et) ⇒ Object
- #field!(pkg, f) ⇒ Object
- #indent(&blk) ⇒ Object
- #indent!(n) ⇒ Object
-
#initialize(c) ⇒ Generator
constructor
A new instance of Generator.
- #message!(pkg, mt) ⇒ Object
-
#name_for(b, mod, val) ⇒ Object
Determines the name for a.
- #ns!(modules, &blk) ⇒ Object
- #puts(msg = nil) ⇒ Object
Constructor Details
#initialize(c) ⇒ Generator
Returns a new instance of Generator.
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# File 'lib/beefcake/generator.rb', line 160 def initialize(c) @c = c @n = 0 end |
Instance Attribute Details
#c ⇒ Object (readonly)
Returns the value of attribute c.
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# File 'lib/beefcake/generator.rb', line 158 def c @c end |
Class Method Details
.compile(ns, req) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 143 def self.compile(ns, req) file = req.proto_file.map do |file| g = new(StringIO.new) g.compile(ns, file) g.c.rewind CodeGeneratorResponse::File.new( :name => File.basename(file.name, ".proto") + ".pb.rb", :content => g.c.read ) end CodeGeneratorResponse.new(:file => file) end |
Instance Method Details
#compile(ns, file) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 271 def compile(ns, file) puts "## Generated from #{file.name} for #{file.package}" puts "require \"beefcake\"" puts ns!(ns) do Array(file.enum_type).each do |et| enum!(et) end file..each do |mt| define! mt end file..each do |mt| (file.package, mt) end end end |
#define!(mt) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 175 def define!(mt) puts puts "class #{mt.name}" indent do puts "include Beefcake::Message" ## Enum Types Array(mt.enum_type).each do |et| enum!(et) end ## Nested Types Array(mt.nested_type).each do |nt| define!(nt) end end puts "end" end |
#enum!(et) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 214 def enum!(et) puts puts "module #{et.name}" indent do et.value.each do |v| puts "%s = %d" % [v.name, v.number] end end puts "end" end |
#field!(pkg, f) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 225 def field!(pkg, f) # Turn the label into Ruby label = name_for(f, L, f.label) # Turn the name into a Ruby name = ":#{f.name}" # Determine the type-name and convert to Ruby type = if f.type_name # We have a type_name so we will use it after converting to a # Ruby friendly version t = f.type_name if pkg t = t.gsub(pkg, "") # Remove the leading package name end t = t.gsub(/^\.*/, "") # Remove leading `.`s t.gsub(".", "::") # Convert to Ruby namespacing syntax else ":#{name_for(f, T, f.type)}" end # Finally, generate the declaration out = "%s %s, %s, %d" % [label, name, type, f.number] if f.default_value v = case f.type when T::TYPE_ENUM "%s::%s" % [type, f.default_value] when T::TYPE_STRING, T::TYPE_BYTES '"%s"' % [f.default_value.gsub('"', '\"')] else f.default_value end out += ", :default => #{v}" end puts out end |
#indent(&blk) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 165 def indent(&blk) @n += 1 blk.call @n -= 1 end |
#indent!(n) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 171 def indent!(n) @n = n end |
#message!(pkg, mt) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 195 def (pkg, mt) puts puts "class #{mt.name}" indent do ## Generate Types Array(mt.nested_type).each do |nt| (pkg, nt) end ## Generate Fields Array(mt.field).each do |f| field!(pkg, f) end end puts "end" end |
#name_for(b, mod, val) ⇒ Object
Determines the name for a
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# File 'lib/beefcake/generator.rb', line 267 def name_for(b, mod, val) b.name_for(mod, val).to_s.gsub(/.*_/, "").downcase end |
#ns!(modules, &blk) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 291 def ns!(modules, &blk) if modules.empty? blk.call else puts "module #{modules.first}" indent do ns!(modules[1..-1], &blk) end puts "end" end end |
#puts(msg = nil) ⇒ Object
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# File 'lib/beefcake/generator.rb', line 303 def puts(msg=nil) if msg c.puts((" " * @n) + msg) else c.puts end end |