style: move parser to a separate file

5 files changed, 209 insertions, 205 deletions

diff --git a/hcl2.gemspec b/hcl2.gemspec
index 191670c..be2ff58 100644
--- a/hcl2.gemspec
+++ b/hcl2.gemspec
@@ -26,5 +26,5 @@ Gem::Specification.new do |spec|
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
-  spec.add_dependency 'parslet', '~> 2.0'
+  spec.add_dependency "parslet", "~> 2.0"
 end
diff --git a/lib/hcl2.rb b/lib/hcl2.rb
index e6f2fb8..89b2d98 100644
--- a/lib/hcl2.rb
+++ b/lib/hcl2.rb
@@ -1,109 +1,9 @@
 # frozen_string_literal: true
 
 require "parslet"
+require_relative "hcl2/parser"
 require_relative "hcl2/version"
 
 module Hcl2
   class Error < StandardError; end
-
-  class Parser < ::Parslet::Parser
-    rule(:alpha) { match['a-zA-Z'] }
-    rule(:assign) { str('=') }
-    rule(:colon) { str(':') }
-    rule(:comma) { str(',') }
-    rule(:comment) { (str('#') | str('//')) >> ((str("\n") >> str("\r").maybe).absent? >> any).repeat >> eol }
-    rule(:crlf) { match('[\r\n]') }
-    rule(:digit) { match('\d') }
-    rule(:dot) { str('.') }
-    rule(:eol) { whitespace? >> crlf.repeat }
-    rule(:greater_than_or_equal_to) { str('>=') }
-    rule(:hyphen) { str('-') }
-    rule(:lbracket) { str('[') }
-    rule(:lcurly) { str('{') }
-    rule(:major) { number }
-    rule(:major_minor) { (number >> dot >> number) }
-    rule(:major_minor_patch) { number >> dot >> number >> dot >> number }
-    rule(:multiline_comment) { str('/*') >> (str('*/').absent? >> any).repeat >> str('*/') }
-    rule(:number) { digit.repeat }
-    rule(:plus) { str('+') }
-    rule(:pre_release) { hyphen >> (alpha | digit).repeat }
-    rule(:pre_release?) { pre_release.maybe }
-    rule(:quote) { str('"') }
-    rule(:rbracket) { str(']') }
-    rule(:rcurly) { str('}') }
-    rule(:slash) { str('/') }
-    rule(:space) { match('\s') }
-    rule(:tilda_wacka) { str('~>') }
-    rule(:version) { number >> dot >> number >> dot >> number >> pre_release? }
-    rule(:whitespace) { (multiline_comment | comment | space).repeat }
-    rule(:whitespace?) { whitespace.maybe }
-
-    rule(:pessimistic_version_constraint) do
-      tilda_wacka >> whitespace >> (
-        major_minor_patch |
-        major_minor |
-        major
-      )
-    end
-
-    rule(:greater_than_or_equal_to_version) do
-      greater_than_or_equal_to >> whitespace >> (
-        major_minor_patch |
-        major_minor |
-        major
-      )
-    end
-
-    rule(:version_constraint) do
-      pessimistic_version_constraint | greater_than_or_equal_to_version
-    end
-
-    rule :version_assignment do
-      str('version') >> whitespace >> assign >> whitespace >> quote >> version.as(:version) >> quote
-    end
-
-    rule :constraint_assignment do
-      str('constraints') >> whitespace >> assign >> whitespace >> quote >> version_constraint.as(:constraints) >> quote
-    end
-
-    rule :string do
-      quote >> (
-        digit | dot | alpha | str('~> ') | slash | colon | assign | plus
-      ).repeat(1).as(:value) >> quote
-    end
-
-    rule :array_item do
-      whitespace? >> string >> comma.maybe >> eol
-    end
-
-    rule :array do
-      lbracket >> eol >> array_item.repeat >> whitespace >> rbracket
-    end
-
-    rule :argument_value do
-      (array.as(:values) | string) >> eol
-    end
-
-    rule :argument do
-      whitespace >> alpha.repeat(1).as(:name) >> whitespace >> assign >> whitespace >> argument_value
-    end
-
-    rule :block_body do
-      lcurly >> crlf >> argument.repeat.as(:arguments) >> rcurly
-    end
-
-    rule :identifier do
-      whitespace >> quote >> (alpha | dot | slash).repeat(1).as(:name) >> quote >> whitespace
-    end
-
-    rule :block do
-      alpha.repeat(1).as(:type) >> identifier >> block_body
-    end
-
-    rule :blocks do
-      whitespace? >> (block >> eol.maybe).repeat(1).as(:blocks)
-    end
-
-    root(:blocks)
-  end
 end
diff --git a/lib/hcl2/parser.rb b/lib/hcl2/parser.rb
new file mode 100644
index 0000000..6afcbd0
--- /dev/null
+++ b/lib/hcl2/parser.rb
@@ -0,0 +1,104 @@
+# frozen_string_literal: true
+
+module Hcl2
+  class Parser < ::Parslet::Parser
+    rule(:alpha) { match["a-zA-Z"] }
+    rule(:assign) { str("=") }
+    rule(:colon) { str(":") }
+    rule(:comma) { str(",") }
+    rule(:comment) { (str("#") | str("//")) >> ((str("\n") >> str("\r").maybe).absent? >> any).repeat >> eol }
+    rule(:crlf) { match('[\r\n]') }
+    rule(:digit) { match('\d') }
+    rule(:dot) { str(".") }
+    rule(:eol) { whitespace? >> crlf.repeat }
+    rule(:greater_than_or_equal_to) { str(">=") }
+    rule(:hyphen) { str("-") }
+    rule(:lbracket) { str("[") }
+    rule(:lcurly) { str("{") }
+    rule(:major) { number }
+    rule(:major_minor) { (number >> dot >> number) }
+    rule(:major_minor_patch) { number >> dot >> number >> dot >> number }
+    rule(:multiline_comment) { str("/*") >> (str("*/").absent? >> any).repeat >> str("*/") }
+    rule(:number) { digit.repeat }
+    rule(:plus) { str("+") }
+    rule(:pre_release) { hyphen >> (alpha | digit).repeat }
+    rule(:pre_release?) { pre_release.maybe }
+    rule(:quote) { str('"') }
+    rule(:rbracket) { str("]") }
+    rule(:rcurly) { str("}") }
+    rule(:slash) { str("/") }
+    rule(:space) { match('\s') }
+    rule(:tilda_wacka) { str("~>") }
+    rule(:version) { number >> dot >> number >> dot >> number >> pre_release? }
+    rule(:whitespace) { (multiline_comment | comment | space).repeat }
+    rule(:whitespace?) { whitespace.maybe }
+
+    rule(:pessimistic_version_constraint) do
+      tilda_wacka >> whitespace >> (
+        major_minor_patch |
+        major_minor |
+        major
+      )
+    end
+
+    rule(:greater_than_or_equal_to_version) do
+      greater_than_or_equal_to >> whitespace >> (
+        major_minor_patch |
+        major_minor |
+        major
+      )
+    end
+
+    rule(:version_constraint) do
+      pessimistic_version_constraint | greater_than_or_equal_to_version
+    end
+
+    rule :version_assignment do
+      str("version") >> whitespace >> assign >> whitespace >> quote >> version.as(:version) >> quote
+    end
+
+    rule :constraint_assignment do
+      str("constraints") >> whitespace >> assign >> whitespace >> quote >> version_constraint.as(:constraints) >> quote
+    end
+
+    rule :string do
+      quote >> (
+        digit | dot | alpha | str("~> ") | slash | colon | assign | plus
+      ).repeat(1).as(:value) >> quote
+    end
+
+    rule :array_item do
+      whitespace? >> string >> comma.maybe >> eol
+    end
+
+    rule :array do
+      lbracket >> eol >> array_item.repeat >> whitespace >> rbracket
+    end
+
+    rule :argument_value do
+      (array.as(:values) | string) >> eol
+    end
+
+    rule :argument do
+      whitespace >> alpha.repeat(1).as(:name) >> whitespace >> assign >> whitespace >> argument_value
+    end
+
+    rule :block_body do
+      lcurly >> crlf >> argument.repeat.as(:arguments) >> rcurly
+    end
+
+    rule :identifier do
+      whitespace >> quote >> (alpha | dot | slash).repeat(1).as(:name) >> quote >> whitespace
+    end
+
+    rule :block do
+      alpha.repeat(1).as(:type) >> identifier >> block_body
+    end
+
+    rule :blocks do
+      whitespace? >> (block >> eol.maybe).repeat(1).as(:blocks)
+    end
+
+    root(:blocks)
+  end
+end
diff --git a/spec/parser_spec.rb b/spec/parser_spec.rb
index 0e356ea..a397ecf 100644
--- a/spec/parser_spec.rb
+++ b/spec/parser_spec.rb
@@ -3,10 +3,10 @@
 RSpec.describe Hcl2::Parser do
   subject(:parser) { described_class.new }
 
-  describe '#parse' do
+  describe "#parse" do
     subject { parser.parse_with_debug(content) }
 
-    context 'when parsing a single provider' do
+    context "when parsing a single provider" do
       let(:content) do
         <<~HCL
           # This file is maintained automatically by "terraform init".
@@ -39,62 +39,62 @@ RSpec.describe Hcl2::Parser do
       end
 
       specify { expect(subject).to be_truthy }
-      specify { expect(subject[:blocks][0][:name].to_s).to eql('registry.terraform.io/hashicorp/aws') }
-      specify { expect(subject[:blocks][0][:type].to_s).to eql('provider') }
+      specify { expect(subject[:blocks][0][:name].to_s).to eql("registry.terraform.io/hashicorp/aws") }
+      specify { expect(subject[:blocks][0][:type].to_s).to eql("provider") }
 
       specify do
         expect(subject[:blocks][0][:arguments]).to match_array([
-          { name: 'version', value: '3.39.0' },
-          { name: 'constraints', value: '~> 3.27' },
+          { name: "version", value: "3.39.0" },
+          { name: "constraints", value: "~> 3.27" },
           {
-            name: 'hashes',
+            name: "hashes",
             values: [
-              { value: 'h1:fjlp3Pd3QsTLghNm7TUh/KnEMM2D3tLb7jsDLs8oWUE=' },
-              { value: 'zh:2014b397dd93fa55f2f2d1338c19e5b2b77b025a76a6b1fceea0b8696e984b9c' },
-              { value: 'zh:23d59c68ab50148a0f5c911a801734e9934a1fccd41118a8efb5194135cbd360' },
-              { value: 'zh:412eab41d4934ca9c47083faa128e4cd585c3bb44ad718e40d67091aebc02f4e' },
-              { value: 'zh:4b75e0a259b56d97e66b7d69f3f25bd4cc7be2440c0fe35529f46de7d40a49d3' },
-              { value: 'zh:694a32519dcca5bd8605d06481d16883d55160d97c1f4039deb13c6ca8de8427' },
-              { value: 'zh:6a0bcef43c2d9a97aeaaac3c5d1d6728dc2464a51a014f118c691c79029d0903' },
-              { value: 'zh:6d78fc7c663247ca2a80f276008dcdafece4cac75e2639bbce188c08b796040a' },
-              { value: 'zh:78f846a505d7b64b67feed1527d4d2b40130dadaf8e3112113685e148f49b156' },
-              { value: 'zh:881bc969432d3ef6ec70f5a762c3415e037904338579b0a360c6818b74d26e59' },
-              { value: 'zh:96c1ca80c1d693a3eef80489adb45c076ee8e6878e461d6c29b05388d4b95f48' },
-              { value: 'zh:9be5fa342272586fc6e319e20f21c0c5c801b05dcf7d59e473ad0882c9ecfa70' },
+              { value: "h1:fjlp3Pd3QsTLghNm7TUh/KnEMM2D3tLb7jsDLs8oWUE=" },
+              { value: "zh:2014b397dd93fa55f2f2d1338c19e5b2b77b025a76a6b1fceea0b8696e984b9c" },
+              { value: "zh:23d59c68ab50148a0f5c911a801734e9934a1fccd41118a8efb5194135cbd360" },
+              { value: "zh:412eab41d4934ca9c47083faa128e4cd585c3bb44ad718e40d67091aebc02f4e" },
+              { value: "zh:4b75e0a259b56d97e66b7d69f3f25bd4cc7be2440c0fe35529f46de7d40a49d3" },
+              { value: "zh:694a32519dcca5bd8605d06481d16883d55160d97c1f4039deb13c6ca8de8427" },
+              { value: "zh:6a0bcef43c2d9a97aeaaac3c5d1d6728dc2464a51a014f118c691c79029d0903" },
+              { value: "zh:6d78fc7c663247ca2a80f276008dcdafece4cac75e2639bbce188c08b796040a" },
+              { value: "zh:78f846a505d7b64b67feed1527d4d2b40130dadaf8e3112113685e148f49b156" },
+              { value: "zh:881bc969432d3ef6ec70f5a762c3415e037904338579b0a360c6818b74d26e59" },
+              { value: "zh:96c1ca80c1d693a3eef80489adb45c076ee8e6878e461d6c29b05388d4b95f48" },
+              { value: "zh:9be5fa342272586fc6e319e20f21c0c5c801b05dcf7d59e473ad0882c9ecfa70" },
             ]
           },
         ])
       end
     end
 
-    context 'when parsing multiple provider blocks' do
-      let(:content) { fixture_file_content('terraform/multiple_providers/.terraform.lock.hcl') }
+    context "when parsing multiple provider blocks" do
+      let(:content) { fixture_file_content("terraform/multiple_providers/.terraform.lock.hcl") }
 
       specify { expect(subject).to be_truthy }
-      specify { expect(subject[:blocks][0][:name].to_s).to eql('registry.terraform.io/hashicorp/aws') }
-      specify { expect(subject[:blocks][0][:type].to_s).to eql('provider') }
-      specify { expect(subject[:blocks][1][:name].to_s).to eql('registry.terraform.io/hashicorp/azurerm') }
-      specify { expect(subject[:blocks][1][:type].to_s).to eql('provider') }
+      specify { expect(subject[:blocks][0][:name].to_s).to eql("registry.terraform.io/hashicorp/aws") }
+      specify { expect(subject[:blocks][0][:type].to_s).to eql("provider") }
+      specify { expect(subject[:blocks][1][:name].to_s).to eql("registry.terraform.io/hashicorp/azurerm") }
+      specify { expect(subject[:blocks][1][:type].to_s).to eql("provider") }
 
       specify do
         expect(subject[:blocks][0][:arguments]).to match_array([
-          { name: 'version', value: '3.40.0' },
-          { name: 'constraints', value: '~> 3.27' },
+          { name: "version", value: "3.40.0" },
+          { name: "constraints", value: "~> 3.27" },
           {
-            name: 'hashes',
+            name: "hashes",
             values: [
-              { value: 'h1:0r9TS3qACD9xJhrfTPZR7ygoCKDWHRX4c0D5GCyfAu4=' },
-              { value: 'zh:2fd824991b19837e200d19b17d8188bf71efb92c36511809484549e77b4045dd' },
-              { value: 'zh:47250cb58b3bd6f2698ca17bfb962710542d6adf95637cd560f6119abf97dba2' },
-              { value: 'zh:515722a8c8726541b05362ec71331264977603374a2e4d4d64f89940873143ea' },
-              { value: 'zh:61b6b7542da2113278c987a0af9f230321f5ed605f1e3098824603cb09ac771b' },
-              { value: 'zh:66aad13ada6344b64adbc67abad4f35c414e62838a99f78626befb8b74c760d8' },
-              { value: 'zh:7d4436aeb53fa348d7fd3c2ab4a727b03c7c59bfdcdecef4a75237760f3bb3cf' },
-              { value: 'zh:a4583891debc49678491510574b1c28bb4fe3f83ed2bb353959c4c1f6f409f1f' },
-              { value: 'zh:b8badecea52f6996ae832144560be87e0b7c2da7fe1dcd6e6230969234b2fc55' },
-              { value: 'zh:cecf64a085f640c30437ccc31bd964c21004ae8ae00cfbd95fb04037e46b88ca' },
-              { value: 'zh:d81dbb9ad8ce5eca4d1fc5a7a06bbb9c47ea8691f1502e94760fa680e20e4afc' },
-              { value: 'zh:f0fc724a964c7f8154bc5911d572ee411f5d181414f9b1f09de7ebdacb0d884b' },
+              { value: "h1:0r9TS3qACD9xJhrfTPZR7ygoCKDWHRX4c0D5GCyfAu4=" },
+              { value: "zh:2fd824991b19837e200d19b17d8188bf71efb92c36511809484549e77b4045dd" },
+              { value: "zh:47250cb58b3bd6f2698ca17bfb962710542d6adf95637cd560f6119abf97dba2" },
+              { value: "zh:515722a8c8726541b05362ec71331264977603374a2e4d4d64f89940873143ea" },
+              { value: "zh:61b6b7542da2113278c987a0af9f230321f5ed605f1e3098824603cb09ac771b" },
+              { value: "zh:66aad13ada6344b64adbc67abad4f35c414e62838a99f78626befb8b74c760d8" },
+              { value: "zh:7d4436aeb53fa348d7fd3c2ab4a727b03c7c59bfdcdecef4a75237760f3bb3cf" },
+              { value: "zh:a4583891debc49678491510574b1c28bb4fe3f83ed2bb353959c4c1f6f409f1f" },
+              { value: "zh:b8badecea52f6996ae832144560be87e0b7c2da7fe1dcd6e6230969234b2fc55" },
+              { value: "zh:cecf64a085f640c30437ccc31bd964c21004ae8ae00cfbd95fb04037e46b88ca" },
+              { value: "zh:d81dbb9ad8ce5eca4d1fc5a7a06bbb9c47ea8691f1502e94760fa680e20e4afc" },
+              { value: "zh:f0fc724a964c7f8154bc5911d572ee411f5d181414f9b1f09de7ebdacb0d884b" },
             ]
           },
         ])
@@ -102,23 +102,23 @@ RSpec.describe Hcl2::Parser do
 
       specify do
         expect(subject[:blocks][1][:arguments]).to match_array([
-          { name: 'version', value: '2.59.0' },
-          { name: 'constraints', value: '~> 2.1' },
+          { name: "version", value: "2.59.0" },
+          { name: "constraints", value: "~> 2.1" },
           {
-            name: 'hashes',
+            name: "hashes",
             values: [
-              { value: 'h1:Mp7ECMHocobalN1+ASSKG5dHB7RnhZ6Y0rEEFTT5urA=' },
-              { value: 'zh:0996d1c85bccdb15aeb6bc32f763c2d85ff854b33c3c3d62c34859669e05785e' },
-              { value: 'zh:37807677e68058381514897ce10dc73a0dd0f503aba98113ac79844d310010e3' },
-              { value: 'zh:3bccf9215bdbcc89327582b1d9d2a633c59215ca6452dbb4f9d0a7a661074c5b' },
-              { value: 'zh:4801791332ab81e51d1ead47a62e0081ec4c1f23ef0fc2e8b15fef315ecdf07a' },
-              { value: 'zh:5bad44816a3eaeb335f665f6eef9b41a403a40e9bddb2db8406ab0e847f639ca' },
-              { value: 'zh:64f79c4ddc2bf8384f1a42c4e430ffdc53cb1fbc565bfe1cdc6b075dcdf098e9' },
-              { value: 'zh:75c96fcb592ed80cc403944faadda25aeadda7fd6de9162a8d365249b1ec1c17' },
-              { value: 'zh:8604558f2f201eefe25f4c611a5d4ef4d7c75338bf2f4a6321da5caa94937947' },
-              { value: 'zh:cab930e374d33b3b980c6774f3d0ac3e3d7e1e596aba586d4368d8bcf05cf9c5' },
-              { value: 'zh:cf0e78eb1e84b6dd11031283878e392e55801e3acd9c5592309e6f76ebe3a621' },
-              { value: 'zh:eba02fcab150775b8b8beeec0c7dbba1585a57f4e97272f48c71021c5e289579' },
+              { value: "h1:Mp7ECMHocobalN1+ASSKG5dHB7RnhZ6Y0rEEFTT5urA=" },
+              { value: "zh:0996d1c85bccdb15aeb6bc32f763c2d85ff854b33c3c3d62c34859669e05785e" },
+              { value: "zh:37807677e68058381514897ce10dc73a0dd0f503aba98113ac79844d310010e3" },
+              { value: "zh:3bccf9215bdbcc89327582b1d9d2a633c59215ca6452dbb4f9d0a7a661074c5b" },
+              { value: "zh:4801791332ab81e51d1ead47a62e0081ec4c1f23ef0fc2e8b15fef315ecdf07a" },
+              { value: "zh:5bad44816a3eaeb335f665f6eef9b41a403a40e9bddb2db8406ab0e847f639ca" },
+              { value: "zh:64f79c4ddc2bf8384f1a42c4e430ffdc53cb1fbc565bfe1cdc6b075dcdf098e9" },
+              { value: "zh:75c96fcb592ed80cc403944faadda25aeadda7fd6de9162a8d365249b1ec1c17" },
+              { value: "zh:8604558f2f201eefe25f4c611a5d4ef4d7c75338bf2f4a6321da5caa94937947" },
+              { value: "zh:cab930e374d33b3b980c6774f3d0ac3e3d7e1e596aba586d4368d8bcf05cf9c5" },
+              { value: "zh:cf0e78eb1e84b6dd11031283878e392e55801e3acd9c5592309e6f76ebe3a621" },
+              { value: "zh:eba02fcab150775b8b8beeec0c7dbba1585a57f4e97272f48c71021c5e289579" },
             ]
           },
         ])
@@ -126,7 +126,7 @@ RSpec.describe Hcl2::Parser do
     end
   end
 
-  describe '#version_assignment' do
+  describe "#version_assignment" do
     subject { parser.version_assignment }
 
     [
@@ -145,20 +145,20 @@ RSpec.describe Hcl2::Parser do
     end
   end
 
-  describe '#version' do
+  describe "#version" do
     [
-      '0.1.1-alpha',
-      '0.1.1-beta',
-      '1.2.3',
-      '3.39.0',
-      '3.39.0-d15aad9f',
-      '3.39.0-d15aad9f6ad69c4248a70b11a6534c1c841ec6f9',
+      "0.1.1-alpha",
+      "0.1.1-beta",
+      "1.2.3",
+      "3.39.0",
+      "3.39.0-d15aad9f",
+      "3.39.0-d15aad9f6ad69c4248a70b11a6534c1c841ec6f9",
     ].each do |raw|
       specify { expect(parser.version).to parse(raw) }
     end
   end
 
-  describe '#constraint_assignment' do
+  describe "#constraint_assignment" do
     subject { parser.constraint_assignment }
 
     [
@@ -173,41 +173,41 @@ RSpec.describe Hcl2::Parser do
     end
   end
 
-  describe '#version_constraint' do
+  describe "#version_constraint" do
     [
-      '~> 3',
-      '~> 3.27',
-      '~> 3.27.0',
-      '>= 1.2.0',
-      '>= 1.20',
-      '>= 10',
+      "~> 3",
+      "~> 3.27",
+      "~> 3.27.0",
+      ">= 1.2.0",
+      ">= 1.20",
+      ">= 10",
     ].each do |raw|
       specify { expect(parser.version_constraint).to parse(raw) }
     end
   end
 
-  (('a'..'z').to_a + ('A'..'Z').to_a).each do |letter|
+  (("a".."z").to_a + ("A".."Z").to_a).each do |letter|
     specify { expect(parser.alpha).to parse(letter) }
   end
 
   (0..9).each { |digit| specify { expect(parser.digit).to parse(digit.to_s) } }
-  specify { expect(parser.assign).not_to parse('==') }
-  specify { expect(parser.assign).to parse('=') }
-  specify { expect(parser.comment).to parse('# Manual edits may be lost in future updates.') }
+  specify { expect(parser.assign).not_to parse("==") }
+  specify { expect(parser.assign).to parse("=") }
+  specify { expect(parser.comment).to parse("# Manual edits may be lost in future updates.") }
   specify { expect(parser.comment).to parse('# This file is maintained automatically by "terraform init".') }
   specify { expect(parser.comment).to parse('// This file is maintained automatically by "terraform init".') }
   specify { expect(parser.crlf).to parse("\n") }
   specify { expect(parser.crlf).to parse("\r") }
-  specify { expect(parser.dot).to parse('.') }
+  specify { expect(parser.dot).to parse(".") }
   specify { expect(parser.eol).to parse(" \n") }
   specify { expect(parser.eol).to parse("\n") }
-  specify { expect(parser.lcurly).to parse('{') }
-  specify { expect(parser.number).to parse('123') }
+  specify { expect(parser.lcurly).to parse("{") }
+  specify { expect(parser.number).to parse("123") }
   specify { expect(parser.quote).to parse('"') }
-  specify { expect(parser.rcurly).to parse('}') }
-  specify { expect(parser.space).to parse(' ') }
-  specify { expect(parser.whitespace).to parse('# This is a comment') }
-  specify { expect(parser.whitespace).to parse('// This is a comment') }
+  specify { expect(parser.rcurly).to parse("}") }
+  specify { expect(parser.space).to parse(" ") }
+  specify { expect(parser.whitespace).to parse("# This is a comment") }
+  specify { expect(parser.whitespace).to parse("// This is a comment") }
   specify { expect(parser.string).to parse('"h1:fjlp3Pd3QsTLghNm7TUh/KnEMM2D3tLb7jsDLs8oWUE="') }
   specify { expect(parser.string).to parse('"zh:2014b397dd93fa55f2f2d1338c19e5b2b77b025a76a6b1fceea0b8696e984b9c"') }
 
@@ -276,10 +276,10 @@ RSpec.describe Hcl2::Parser do
     HCL
   end
 
-  describe '#blocks' do
+  describe "#blocks" do
     subject { parser.blocks.parse_with_debug(hcl) }
 
-    context 'when parsing multiple multi-line empty blocks' do
+    context "when parsing multiple multi-line empty blocks" do
       let(:hcl) do
         <<~HCL
           provider "thingy" {
@@ -290,15 +290,15 @@ RSpec.describe Hcl2::Parser do
         HCL
       end
 
-      it 'parses multiple empty blocks' do
+      it "parses multiple empty blocks" do
         expect(subject[:blocks]).to match_array([
-          { type: 'provider', name: 'thingy', arguments: [] },
-          { type: 'provider', name: 'other.thingy', arguments: [] },
+          { type: "provider", name: "thingy", arguments: [] },
+          { type: "provider", name: "other.thingy", arguments: [] },
         ])
       end
     end
 
-    context 'when parsing multiple multi-line blocks with one argument assignment to a string in the first block' do
+    context "when parsing multiple multi-line blocks with one argument assignment to a string in the first block" do
       let(:hcl) do
         <<~HCL
           provider "thingy" {
@@ -310,15 +310,15 @@ RSpec.describe Hcl2::Parser do
         HCL
       end
 
-      it 'parses multiple empty blocks' do
+      it "parses multiple empty blocks" do
         expect(subject[:blocks]).to match_array([
-          { type: 'provider', name: 'thingy', arguments: [{ name: 'name', value: 'blah' }] },
-          { type: 'provider', name: 'other.thingy', arguments: [] },
+          { type: "provider", name: "thingy", arguments: [{ name: "name", value: "blah" }] },
+          { type: "provider", name: "other.thingy", arguments: [] },
         ])
       end
     end
 
-    context 'when parsing multiple multi-line blocks with one argument assignment to a string in the second block' do
+    context "when parsing multiple multi-line blocks with one argument assignment to a string in the second block" do
       let(:hcl) do
         <<~HCL
           provider "thingy" {
@@ -330,15 +330,15 @@ RSpec.describe Hcl2::Parser do
         HCL
       end
 
-      it 'parses multiple empty blocks' do
+      it "parses multiple empty blocks" do
         expect(subject[:blocks]).to match_array([
-          { type: 'provider', name: 'thingy', arguments: [] },
-          { type: 'provider', name: 'other.thingy', arguments: [{ name: 'name', value: 'blah' }] },
+          { type: "provider", name: "thingy", arguments: [] },
+          { type: "provider", name: "other.thingy", arguments: [{ name: "name", value: "blah" }] },
         ])
       end
     end
 
-    context 'when parsing a blocks with one assignment to an empty array' do
+    context "when parsing a blocks with one assignment to an empty array" do
       let(:hcl) do
         <<~HCL
           provider "thingy" {
@@ -348,14 +348,14 @@ RSpec.describe Hcl2::Parser do
         HCL
       end
 
-      pending 'parses multiple empty blocks' do
+      pending "parses multiple empty blocks" do
         expect(subject[:blocks]).to match_array([
-          { type: 'provider', name: 'thingy', arguments: [{ name: 'names', values: [] }] },
+          { type: "provider", name: "thingy", arguments: [{ name: "names", values: [] }] },
         ])
       end
     end
 
-    context 'when parsing multiple multi-line blocks with one assignment to a multi-line array' do
+    context "when parsing multiple multi-line blocks with one assignment to a multi-line array" do
       let(:hcl) do
         <<~HCL
           provider "thingy" {
@@ -369,10 +369,10 @@ RSpec.describe Hcl2::Parser do
         HCL
       end
 
-      it 'parses multiple empty blocks' do
+      it "parses multiple empty blocks" do
         expect(subject[:blocks]).to match_array([
-          { type: 'provider', name: 'thingy', arguments: [{ name: 'names', values: [{ value: 'blah' }] }] },
-          { type: 'provider', name: 'other.thingy', arguments: [] },
+          { type: "provider", name: "thingy", arguments: [{ name: "names", values: [{ value: "blah" }] }] },
+          { type: "provider", name: "other.thingy", arguments: [] },
         ])
       end
     end
diff --git a/spec/support/files.rb b/spec/support/files.rb
index 81ea2f3..780e1df 100644
--- a/spec/support/files.rb
+++ b/spec/support/files.rb
@@ -3,7 +3,7 @@
 RSpec.configure do |config|
   config.include(Module.new do
     def fixture_file(path)
-      Pathname.new(__FILE__).parent.join('../fixtures', path)
+      Pathname.new(__FILE__).parent.join("../fixtures", path)
     end
 
     def fixture_file_content(path)