Apr 5, 2023
diff --git a/README.md b/README.md
 * `plugin/single_quotes` - This will change all of your string literals to use single quotes instead of the default double quotes.
 * `plugin/trailing_comma` - This will put trailing commas into multiline array literals, hash literals, and method calls that can support trailing commas.
 * `plugin/disable_auto_ternary` - This will prevent the automatic conversion of `if ... else` to ternary expressions.
 * `plugin/strip_hash` - This will remove the spaces at the beginning and end of hashes.

 If you're using Syntax Tree as a library, you can require those files directly or manually pass those options to the formatter initializer through the `SyntaxTree::Formatter::Options` class.

diff --git a/lib/syntax_tree/formatter.rb b/lib/syntax_tree/formatter.rb
      attr_reader :quote,
                  :trailing_comma,
                  :disable_auto_ternary,
                  :target_ruby_version
                  :target_ruby_version,
                  :strip_hash

      def initialize(
        quote: :default,
        trailing_comma: :default,
        disable_auto_ternary: :default,
        target_ruby_version: :default
        target_ruby_version: :default,
        strip_hash: :default
      )
        @quote =
          if quote == :default
          else
            target_ruby_version
          end

        @strip_hash =
          if strip_hash == :default
            # This plugin removes the spaces at the beginning and end of hashes.
            defined?(STRIP_HASH)
          else
            strip_hash
          end
      end
    end

    attr_reader :quote,
                :trailing_comma,
                :disable_auto_ternary,
                :target_ruby_version
                :target_ruby_version,
                :strip_hash

    alias trailing_comma? trailing_comma
    alias disable_auto_ternary? disable_auto_ternary
    alias strip_hash? strip_hash

    def initialize(source, *args, options: Options.new)
      super(*args)
      @trailing_comma = options.trailing_comma
      @disable_auto_ternary = options.disable_auto_ternary
      @target_ruby_version = options.target_ruby_version
      @strip_hash = options.strip_hash
    end

    def self.format(source, node, base_indentation = 0)
diff --git a/lib/syntax_tree/node.rb b/lib/syntax_tree/node.rb
        q.breakable_empty
      else
        q.indent do
          q.breakable_space
          q.strip_hash? ? q.breakable_empty : q.breakable_space
          q.seplist(assocs) { |assoc| q.format(assoc) }
          q.if_break { q.text(",") } if q.trailing_comma?
        end
        q.breakable_space
        q.strip_hash? ? q.breakable_empty : q.breakable_space
      end

      q.text("}")
diff --git a/lib/syntax_tree/plugin/strip_hash.rb b/lib/syntax_tree/plugin/strip_hash.rb
 # frozen_string_literal: true

 module SyntaxTree
  class Formatter
    STRIP_HASH = true
  end
 end
diff --git a/test/plugin/strip_hash_test.rb b/test/plugin/strip_hash_test.rb
 # frozen_string_literal: true

 require_relative "../test_helper"

 module SyntaxTree
  class StripHashTest < Minitest::Test
    def test_single_hash
      assert_format("{foo: 1}\n")
    end

    def test_multi_line_hash
      assert_format(<<~EXPECTED)
        {
          fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo: 1,
          baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: 2
        }
      EXPECTED
    end

    private

    def assert_format(expected, source = expected)
      options = Formatter::Options.new(strip_hash: true)
      formatter = Formatter.new(source, [], options: options)
      SyntaxTree.parse(source).format(formatter)

      formatter.flush
      assert_equal(expected, formatter.output.join)
    end
  end
 end
Original file line number	Diff line number	Diff line change
Expand Up		@@ -711,6 +711,7 @@ To register plugins, define a file somewhere in your load path named `syntax_tre
		* `plugin/single_quotes` - This will change all of your string literals to use single quotes instead of the default double quotes.
		* `plugin/trailing_comma` - This will put trailing commas into multiline array literals, hash literals, and method calls that can support trailing commas.
		* `plugin/disable_auto_ternary` - This will prevent the automatic conversion of `if ... else` to ternary expressions.
		* `plugin/strip_hash` - This will remove the spaces at the beginning and end of hashes.

		If you're using Syntax Tree as a library, you can require those files directly or manually pass those options to the formatter initializer through the `SyntaxTree::Formatter::Options` class.

Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -24,13 +24,15 @@ class Options
		attr_reader :quote,
		:trailing_comma,
		:disable_auto_ternary,
		:target_ruby_version
		:target_ruby_version,
		:strip_hash

		def initialize(
		quote: :default,
		trailing_comma: :default,
		disable_auto_ternary: :default,
		target_ruby_version: :default
		target_ruby_version: :default,
		strip_hash: :default
		)
		@quote =
		if quote == :default
Expand DownExpand Up		@@ -74,6 +76,14 @@ def initialize(
		else
		target_ruby_version
		end

		@strip_hash =
		if strip_hash == :default
		# This plugin removes the spaces at the beginning and end of hashes.
		defined?(STRIP_HASH)
		else
		strip_hash
		end
		end
		end

Expand All		@@ -87,10 +97,12 @@ def initialize(
		attr_reader :quote,
		:trailing_comma,
		:disable_auto_ternary,
		:target_ruby_version
		:target_ruby_version,
		:strip_hash

		alias trailing_comma? trailing_comma
		alias disable_auto_ternary? disable_auto_ternary
		alias strip_hash? strip_hash

		def initialize(source, *args, options: Options.new)
		super(*args)
Expand All		@@ -103,6 +115,7 @@ def initialize(source, *args, options: Options.new)
		@trailing_comma = options.trailing_comma
		@disable_auto_ternary = options.disable_auto_ternary
		@target_ruby_version = options.target_ruby_version
		@strip_hash = options.strip_hash
		end

		def self.format(source, node, base_indentation = 0)
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -5754,11 +5754,11 @@ def format_contents(q)
		q.breakable_empty
		else
		q.indent do
		q.breakable_space
		q.strip_hash? ? q.breakable_empty : q.breakable_space
		q.seplist(assocs) { \|assoc\| q.format(assoc) }
		q.if_break { q.text(",") } if q.trailing_comma?
		end
		q.breakable_space
		q.strip_hash? ? q.breakable_empty : q.breakable_space
		end

		q.text("}")
Expand Down
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,7 @@
		# frozen_string_literal: true

		module SyntaxTree
		class Formatter
		STRIP_HASH = true
		end
		end
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,31 @@
		# frozen_string_literal: true

		require_relative "../test_helper"

		module SyntaxTree
		class StripHashTest < Minitest::Test
		def test_single_hash
		assert_format("{foo: 1}\n")
		end

		def test_multi_line_hash
		assert_format(<<~EXPECTED)
		{
		fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo: 1,
		baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: 2
		}
		EXPECTED
		end

		private

		def assert_format(expected, source = expected)
		options = Formatter::Options.new(strip_hash: true)
		formatter = Formatter.new(source, [], options: options)
		SyntaxTree.parse(source).format(formatter)

		formatter.flush
		assert_equal(expected, formatter.output.join)
		end
		end
		end