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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,232 @@ | ||
| module Ruby | ||
| module Signature | ||
| class Writer | ||
| attr_reader :out | ||
|
|
||
| def initialize(out:) | ||
| @out = out | ||
| end | ||
|
|
||
| def write_annotation(annotations, level:) | ||
| prefix = " " * level | ||
|
|
||
| annotations.each do |annotation| | ||
| string = annotation.string | ||
| case | ||
| when string !~ /\}/ | ||
| out.puts "#{prefix}%a{#{string}}" | ||
| when string !~ /\)/ | ||
| out.puts "#{prefix}%a(#{string})" | ||
| when string !~ /\]/ | ||
| out.puts "#{prefix}%a[#{string}]" | ||
| when string !~ /\>/ | ||
| out.puts "#{prefix}%a<#{string}>" | ||
| when string !~ /\|/ | ||
| out.puts "#{prefix}%a|#{string}|" | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def write_comment(comment, level:) | ||
| if comment | ||
| prefix = " " * level | ||
| comment.string.lines.each do |line| | ||
| out.puts "#{prefix}# #{line}" | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def write(decls) | ||
| decls.each.with_index do |decl, index| | ||
| if index > 0 | ||
| out.puts | ||
| end | ||
|
|
||
| write_decl decl | ||
| end | ||
| end | ||
|
|
||
| def write_decl(decl) | ||
| case decl | ||
| when AST::Declarations::Class | ||
| super_class = if decl.super_class | ||
| " < #{name_and_args(decl.super_class.name, decl.super_class.args)}" | ||
| end | ||
| write_comment decl.comment, level: 0 | ||
| write_annotation decl.annotations, level: 0 | ||
| out.puts "class #{name_and_args(decl.name, decl.type_params)}#{super_class}" | ||
|
|
||
| decl.members.each.with_index do |member, index| | ||
| if index > 0 | ||
| out.puts | ||
| end | ||
| write_member member | ||
| end | ||
|
|
||
| out.puts "end" | ||
|
|
||
| when AST::Declarations::Module | ||
| self_type = if decl.self_type | ||
| " : #{decl.self_type}" | ||
| end | ||
|
|
||
| write_comment decl.comment, level: 0 | ||
| write_annotation decl.annotations, level: 0 | ||
| out.puts "module #{name_and_args(decl.name, decl.type_params)}#{self_type}" | ||
| decl.members.each.with_index do |member, index| | ||
| if index > 0 | ||
| out.puts | ||
| end | ||
| write_member member | ||
| end | ||
| out.puts "end" | ||
| when AST::Declarations::Constant | ||
| write_comment decl.comment, level: 0 | ||
| out.puts "#{decl.name}: #{decl.type}" | ||
|
|
||
| when AST::Declarations::Global | ||
| write_comment decl.comment, level: 0 | ||
| out.puts "#{decl.name}: #{decl.type}" | ||
|
|
||
| when AST::Declarations::Alias | ||
| write_comment decl.comment, level: 0 | ||
| write_annotation decl.annotations, level: 0 | ||
| out.puts "type #{decl.name} = #{decl.type}" | ||
|
|
||
| when AST::Declarations::Interface | ||
| write_comment decl.comment, level: 0 | ||
| write_annotation decl.annotations, level: 0 | ||
| out.puts "interface #{name_and_args(decl.name, decl.type_params)}" | ||
| decl.members.each.with_index do |member, index| | ||
| if index > 0 | ||
| out.puts | ||
| end | ||
| write_member member | ||
| end | ||
| out.puts "end" | ||
|
|
||
| when AST::Declarations::Extension | ||
| write_comment decl.comment, level: 0 | ||
| write_annotation decl.annotations, level: 0 | ||
| out.puts "extension #{name_and_args(decl.name, decl.type_params)} (#{decl.extension_name})" | ||
| decl.members.each.with_index do |member, index| | ||
| if index > 0 | ||
| out.puts | ||
| end | ||
| write_member member | ||
| end | ||
| out.puts "end" | ||
| end | ||
| end | ||
|
|
||
| def name_and_args(name, args) | ||
| if name && args | ||
| if args.empty? | ||
| "#{name}" | ||
| else | ||
| "#{name}[#{args.join(", ")}]" | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def write_member(member) | ||
| case member | ||
| when AST::Members::Include | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " include #{name_and_args(member.name, member.args)}" | ||
| when AST::Members::Extend | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " extend #{name_and_args(member.name, member.args)}" | ||
| when AST::Members::Prepend | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " prepend #{name_and_args(member.name, member.args)}" | ||
| when AST::Members::AttrAccessor | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " #{attribute(:accessor, member)}" | ||
| when AST::Members::AttrReader | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " #{attribute(:reader, member)}" | ||
| when AST::Members::AttrWriter | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| out.puts " #{attribute(:writer, member)}" | ||
| when AST::Members::Public | ||
| out.puts " public" | ||
| when AST::Members::Private | ||
| out.puts " private" | ||
| when AST::Members::Alias | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| new_name = member.singleton? ? "self.#{member.new_name}" : member.new_name | ||
| old_name = member.singleton? ? "self.#{member.old_name}" : member.old_name | ||
| out.puts " alias #{new_name} #{old_name}" | ||
| when AST::Members::InstanceVariable | ||
| write_comment member.comment, level: 2 | ||
| out.puts " #{member.name}: #{member.type}" | ||
| when AST::Members::ClassInstanceVariable | ||
| write_comment member.comment, level: 2 | ||
| out.puts " self.#{member.name}: #{member.type}" | ||
| when AST::Members::ClassVariable | ||
| write_comment member.comment, level: 2 | ||
| out.puts " #{member.name}: #{member.type}" | ||
| when AST::Members::MethodDefinition | ||
| write_comment member.comment, level: 2 | ||
| write_annotation member.annotations, level: 2 | ||
| write_def member | ||
| end | ||
| end | ||
|
|
||
| def method_name(name) | ||
| s = name.to_s | ||
|
|
||
| if s =~ Parser::KEYWORDS_RE | ||
| "`#{s}`" | ||
| else | ||
| s | ||
| end | ||
| end | ||
|
|
||
| def write_def(member) | ||
| name = case member.kind | ||
| when :instance | ||
| "#{method_name(member.name)}" | ||
| when :singleton_instance | ||
| "self?.#{method_name(member.name)}" | ||
| when :singleton | ||
| "self.#{method_name(member.name)}" | ||
| end | ||
|
|
||
| attrs = member.attributes.empty? ? "" : member.attributes.join(" ") + " " | ||
| prefix = " #{attrs}def #{name}:" | ||
| padding = " " * (prefix.size-1) | ||
|
|
||
| out.print prefix | ||
|
|
||
| member.types.each.with_index do |type, index| | ||
| if index > 0 | ||
| out.print padding | ||
| out.print "|" | ||
| end | ||
| out.puts " #{type}" | ||
| end | ||
| end | ||
|
|
||
| def attribute(kind, attr) | ||
| var = case attr.ivar_name | ||
| when nil | ||
| "" | ||
| when false | ||
| "()" | ||
| else | ||
| "(#{attr.ivar_name})" | ||
| end | ||
| "attr_#{kind} #{attr.name}#{var}: #{attr.type}" | ||
| end | ||
| end | ||
| end | ||
| end |
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