diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
new file mode 100644
index 0000000..f1cb35e
--- /dev/null
+++ b/.cargo_vcs_info.json
@@ -0,0 +1,6 @@
+{
+  "git": {
+    "sha1": "6f09fca6ece8243a7d002f7f87a015fe9139af17"
+  },
+  "path_in_vcs": ""
+}
\ No newline at end of file
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..462b347
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,18 @@
+version: 2
+updates:
+- package-ecosystem: cargo
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "13:00"
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: syn
+    versions:
+    - 1.0.60
+  - dependency-name: quote
+    versions:
+    - 1.0.8
+  - dependency-name: proc-macro2
+    versions:
+    - 1.0.24
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..57e01df
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,70 @@
+name: test
+
+on:
+  push:
+    branches:
+      - main
+      - release/**
+  pull_request:
+    branches:
+      - main
+      - release/**
+  schedule:
+    - cron:  '0 3 * * 4'
+
+jobs:
+  ## Run all default oriented feature sets across all platforms.
+  platform-matrix:
+    name: platform
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        #os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest]
+    steps:
+    - uses: actions/checkout@v1
+
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+
+    - name: cargo test --all --all-targets --all-features
+      run: cargo test --all --all-targets --all-features
+
+  ## Execute the clippy checks
+  cleanliness:
+    name: cleanliness
+    runs-on: ubuntu-latest
+    needs: platform-matrix
+    steps:
+    - uses: actions/checkout@v1
+
+    # not using the cargo cache here, since this differs significantly
+    - name: cargo-all cache
+      uses: actions/cache@v1
+      with:
+        path: ~/.cargo
+        key: ${{ runner.os }}-cargo-all-${{ hashFiles('**/Cargo.toml') }}-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-cargo-all-${{ hashFiles('**/Cargo.toml') }}
+          ${{ runner.os }}-cargo-all
+          ${{ runner.os }}-cargo
+
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        components: rustfmt, clippy
+        override: true
+    
+    # Clippy
+    - name: cargo clippy
+      run: cargo clippy --lib --examples --tests --bins --all-features -- -D warnings
+    # Rustfmt
+    - name: cargo fmt
+      run: cargo fmt -- --check
+    # Audit
+    - name: cargo audit
+      run: cargo install cargo-audit && cargo audit --deny warnings
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53eaa21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..dac8938
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,73 @@
+# Change Log: enum-as-inner
+
+All notable changes to this project will be documented in this file.
+This project adheres to [Semantic Versioning](http://semver.org/).
+
+## 0.6.0
+
+- Previous changes deserved a minor version bump, 0.5.2 yanked, 0.6.0 released
+
+## 0.5.2
+
+- Add is_* impl for non unit variants, #91 by goolmoos
+- Fully qualify both Option and Result in generated code, #96 by kepler-5
+
+## 0.5.1
+
+- Generated functions now marked `#[inline]` to help with lto across crate boundaries for libraries, #87 by zxch3n
+
+## 0.5.0
+
+- Changed all references in generated functions to use `Self` where applicable.
+
+## 0.4.0
+
+### Changed
+
+- Change unit variants to use predicate functions (@CeleritasCelery) #76
+
+## 0.3.4
+
+### Changed
+
+- updated `heck` to 0.4 #82
+
+## 0.3.3
+
+### Added
+
+- Support for Generic enum members (@Jan561) #19
+
+## 0.3.2
+
+### Added
+
+- Added `as_mut_*` for mutable access to inners (@yuyoyuppe) #14
+
+## 0.3.1
+
+### Added
+
+- this CHANGELOG.md
+
+### Changes
+
+- Updated docs for new `use` syntax of macros
+
+## 0.3
+
+### Changes
+
+- Upgrade to work with 1.0 versions of proc-macro2, quote, and syn
+
+## 0.2
+
+### Fixes
+
+- some bug fixes for edge conditions
+
+## 0.1
+
+### Added
+
+- first release
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..4055613
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at benjaminfry@me.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..dd3921f
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,69 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "enum-as-inner"
+version = "0.6.1"
+authors = ["Benjamin Fry <benjaminfry@me.com>"]
+build = false
+autobins = false
+autoexamples = false
+autotests = false
+autobenches = false
+description = """
+A proc-macro for deriving inner field accessor functions on enums.
+"""
+documentation = "https://docs.rs/enum-as-inner"
+readme = "README.md"
+license = "MIT/Apache-2.0"
+repository = "https://github.com/bluejekyll/enum-as-inner"
+
+[lib]
+name = "enum_as_inner"
+path = "src/lib.rs"
+proc-macro = true
+
+[[test]]
+name = "basic"
+path = "tests/basic.rs"
+
+[[test]]
+name = "generics"
+path = "tests/generics.rs"
+
+[[test]]
+name = "named"
+path = "tests/named.rs"
+
+[[test]]
+name = "snake_case"
+path = "tests/snake_case.rs"
+
+[[test]]
+name = "unit"
+path = "tests/unit.rs"
+
+[[test]]
+name = "unnamed"
+path = "tests/unnamed.rs"
+
+[dependencies.heck]
+version = "0.5"
+
+[dependencies.proc-macro2]
+version = "1.0"
+
+[dependencies.quote]
+version = "1.0"
+
+[dependencies.syn]
+version = "2.0"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
new file mode 100644
index 0000000..5138c6a
--- /dev/null
+++ b/Cargo.toml.orig
@@ -0,0 +1,24 @@
+[package]
+name = "enum-as-inner"
+version = "0.6.1"
+authors = ["Benjamin Fry <benjaminfry@me.com>"]
+edition = "2018"
+
+description = """
+A proc-macro for deriving inner field accessor functions on enums.
+"""
+
+documentation = "https://docs.rs/enum-as-inner"
+repository = "https://github.com/bluejekyll/enum-as-inner"
+
+readme = "README.md"
+license = "MIT/Apache-2.0"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+heck = "0.5"
+proc-macro2 = "1.0"
+quote = "1.0"
+syn = "2.0"
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..fdc5db7
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,224 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
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+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
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+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
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+   2. Grant of Copyright License. Subject to the terms and conditions of
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+   3. Grant of Patent License. Subject to the terms and conditions of
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+      or contributory patent infringement, then any patent licenses
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+
+   4. Redistribution. You may reproduce and distribute copies of the
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+      You may add Your own copyright statement to Your modifications and
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+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
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+   6. Trademarks. This License does not grant permission to use the trade
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
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+      To apply the Apache License to your work, attach the following
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
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+-----
+
+Copyright (c) 2015 The trust-dns Developers
+Copyright (c) 2017 Google LLC.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
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diff --git a/LICENSE-APACHE b/LICENSE-APACHE
new file mode 100644
index 0000000..8f71f43
--- /dev/null
+++ b/LICENSE-APACHE
@@ -0,0 +1,202 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
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+   4. Redistribution. You may reproduce and distribute copies of the
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+      (a) You must give any other recipients of the Work or
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+      (b) You must cause any modified files to carry prominent notices
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+      (c) You must retain, in the Source form of any Derivative Works
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
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+
+      You may add Your own copyright statement to Your modifications and
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
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+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
diff --git a/LICENSE-MIT b/LICENSE-MIT
new file mode 100644
index 0000000..b497b09
--- /dev/null
+++ b/LICENSE-MIT
@@ -0,0 +1,20 @@
+Copyright (c) 2015 The trust-dns Developers
+Copyright (c) 2017 Google LLC.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..b2d734a
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,21 @@
+name: "enum-as-inner"
+description: "()"
+third_party {
+  identifier {
+    type: "crates.io"
+    value: "enum-as-inner"
+  }
+  identifier {
+    type: "Archive"
+    value: "https://static.crates.io/crates/enum-as-inner/enum-as-inner-0.6.1.crate"
+    primary_source: true
+  }
+  version: "0.6.1"
+  # Dual-licensed, using the least restrictive per go/thirdpartylicenses#same.
+  license_type: NOTICE
+  last_upgrade_date {
+    year: 2024
+    month: 10
+    day: 15
+  }
+}
diff --git a/MODULE_LICENSE_APACHE2 b/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_APACHE2
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..5a2b844
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:main:/OWNERS
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..3ab4eab
--- /dev/null
+++ b/README.md
@@ -0,0 +1,102 @@
+# enum-as-inner
+
+A deriving proc-macro for generating functions to automatically give access to the inner members of enum.
+
+## Basic unnamed field case
+
+The basic case is meant for single item enums, like:
+
+```rust
+use enum_as_inner::EnumAsInner;
+
+#[derive(Debug, EnumAsInner)]
+enum OneEnum {
+    One(u32),
+}
+```
+
+where the inner item can be retrieved with the `as_*()`/`as_*_mut()` or with the `into_*()` functions:
+
+```rust
+let one = OneEnum::One(1);
+
+assert_eq!(*one.as_one().unwrap(), 1);
+assert_eq!(one.into_one().unwrap(), 1);
+
+let mut one = OneEnum::One(2);
+
+assert_eq!(*one.as_one().unwrap(), 1);
+assert_eq!(*one.as_one_mut().unwrap(), 1);
+assert_eq!(one.into_one().unwrap(), 1);
+```
+
+where the result is either a reference for inner items or a tuple containing the inner items.
+
+## Unit case
+
+This will return true if enum's variant matches the expected type
+
+```rust
+use enum_as_inner::EnumAsInner;
+
+#[derive(EnumAsInner)]
+enum UnitVariants {
+    Zero,
+    One,
+    Two,
+}
+
+let unit = UnitVariants::Two;
+
+assert!(unit.is_two());
+```
+
+## Mutliple, unnamed field case
+
+This will return a tuple of the inner types:
+
+```rust
+use enum_as_inner::EnumAsInner;
+
+#[derive(Debug, EnumAsInner)]
+enum ManyVariants {
+    One(u32),
+    Two(u32, i32),
+    Three(bool, u32, i64),
+}
+```
+
+And can be accessed like:
+
+```rust
+let mut many = ManyVariants::Three(true, 1, 2);
+
+assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+assert_eq!(many.as_three_mut().unwrap(), (&mut true, &mut 1_u32, &mut 2_i64));
+assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+```
+
+## Multiple, named field case
+
+This will return a tuple of the inner types, like the unnamed option:
+
+```rust
+use enum_as_inner::EnumAsInner;
+
+#[derive(Debug, EnumAsInner)]
+enum ManyVariants {
+    One{ one: u32 },
+    Two{ one: u32, two: i32 },
+    Three{ one: bool, two: u32, three: i64 },
+}
+```
+
+And can be accessed like:
+
+```rust
+let mut many = ManyVariants::Three{ one: true, two: 1, three: 2 };
+
+assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+assert_eq!(many.as_three_mut().unwrap(), (&mut true, &mut 1_u32, &mut 2_i64));
+assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+```
diff --git a/copyright.txt b/copyright.txt
new file mode 100644
index 0000000..cdf7e65
--- /dev/null
+++ b/copyright.txt
@@ -0,0 +1,6 @@
+// Copyright 2015-2018 Benjamin Fry <benjaminfry@me.com>
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..51b0948
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,398 @@
+// Copyright 2015-2018 Benjamin Fry <benjaminfry@me.com>
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+//! # enum-as-inner
+//!
+//! A deriving proc-macro for generating functions to automatically give access to the inner members of enum.
+//!
+//! ## Basic unnamed field case
+//!
+//! The basic case is meant for single item enums, like:
+//!
+//! ```rust
+//! use enum_as_inner::EnumAsInner;
+//!
+//! #[derive(Debug, EnumAsInner)]
+//! enum OneEnum {
+//!     One(u32),
+//! }
+//!
+//! let one = OneEnum::One(1);
+//!
+//! assert_eq!(*one.as_one().unwrap(), 1);
+//! assert_eq!(one.into_one().unwrap(), 1);
+//! ```
+//!
+//! where the result is either a reference for inner items or a tuple containing the inner items.
+//!
+//! ## Unit case
+//!
+//! This will return true if enum's variant matches the expected type
+//!
+//! ```rust
+//! use enum_as_inner::EnumAsInner;
+//!
+//! #[derive(EnumAsInner)]
+//! enum UnitVariants {
+//!     Zero,
+//!     One,
+//!     Two,
+//! }
+//!
+//! let unit = UnitVariants::Two;
+//!
+//! assert!(unit.is_two());
+//! ```
+//!
+//! ## Mutliple, unnamed field case
+//!
+//! This will return a tuple of the inner types:
+//!
+//! ```rust
+//! use enum_as_inner::EnumAsInner;
+//!
+//! #[derive(Debug, EnumAsInner)]
+//! enum ManyVariants {
+//!     One(u32),
+//!     Two(u32, i32),
+//!     Three(bool, u32, i64),
+//! }
+//!
+//! let many = ManyVariants::Three(true, 1, 2);
+//!
+//! assert!(many.is_three());
+//! assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+//! assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+//! ```
+//!
+//! ## Multiple, named field case
+//!
+//! This will return a tuple of the inner types, like the unnamed option:
+//!
+//! ```rust
+//! use enum_as_inner::EnumAsInner;
+//!
+//! #[derive(Debug, EnumAsInner)]
+//! enum ManyVariants {
+//!     One { one: u32 },
+//!     Two { one: u32, two: i32 },
+//!     Three { one: bool, two: u32, three: i64 },
+//! }
+//!
+//! let many = ManyVariants::Three { one: true, two: 1, three: 2 };
+//!
+//! assert!(many.is_three());
+//! assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+//! assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+//! ```
+
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use heck::ToSnakeCase;
+use proc_macro2::{Ident, Span, TokenStream};
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
+
+/// returns first the types to return, the match names, and then tokens to the field accesses
+fn unit_fields_return(variant_name: &syn::Ident, function_name: &Ident, doc: &str) -> TokenStream {
+    quote!(
+        #[doc = #doc]
+        #[inline]
+        pub fn #function_name(&self) -> bool {
+            matches!(self, Self::#variant_name)
+        }
+    )
+}
+
+/// returns first the types to return, the match names, and then tokens to the field accesses
+fn unnamed_fields_return(
+    variant_name: &syn::Ident,
+    (function_name_is, doc_is): (&Ident, &str),
+    (function_name_mut_ref, doc_mut_ref): (&Ident, &str),
+    (function_name_ref, doc_ref): (&Ident, &str),
+    (function_name_val, doc_val): (&Ident, &str),
+    fields: &syn::FieldsUnnamed,
+) -> TokenStream {
+    let (returns_mut_ref, returns_ref, returns_val, matches) = match fields.unnamed.len() {
+        1 => {
+            let field = fields.unnamed.first().expect("no fields on type");
+
+            let returns = &field.ty;
+            let returns_mut_ref = quote!(&mut #returns);
+            let returns_ref = quote!(&#returns);
+            let returns_val = quote!(#returns);
+            let matches = quote!(inner);
+
+            (returns_mut_ref, returns_ref, returns_val, matches)
+        }
+        0 => (quote!(()), quote!(()), quote!(()), quote!()),
+        _ => {
+            let mut returns_mut_ref = TokenStream::new();
+            let mut returns_ref = TokenStream::new();
+            let mut returns_val = TokenStream::new();
+            let mut matches = TokenStream::new();
+
+            for (i, field) in fields.unnamed.iter().enumerate() {
+                let rt = &field.ty;
+                let match_name = Ident::new(&format!("match_{}", i), Span::call_site());
+                returns_mut_ref.extend(quote!(&mut #rt,));
+                returns_ref.extend(quote!(&#rt,));
+                returns_val.extend(quote!(#rt,));
+                matches.extend(quote!(#match_name,));
+            }
+
+            (
+                quote!((#returns_mut_ref)),
+                quote!((#returns_ref)),
+                quote!((#returns_val)),
+                quote!(#matches),
+            )
+        }
+    };
+
+    quote!(
+        #[doc = #doc_is ]
+        #[inline]
+        #[allow(unused_variables)]
+        pub fn #function_name_is(&self) -> bool {
+            matches!(self, Self::#variant_name(#matches))
+        }
+
+        #[doc = #doc_mut_ref ]
+        #[inline]
+        pub fn #function_name_mut_ref(&mut self) -> ::core::option::Option<#returns_mut_ref> {
+            match self {
+                Self::#variant_name(#matches) => {
+                    ::core::option::Option::Some((#matches))
+                }
+                _ => ::core::option::Option::None
+            }
+        }
+
+        #[doc = #doc_ref ]
+        #[inline]
+        pub fn #function_name_ref(&self) -> ::core::option::Option<#returns_ref> {
+            match self {
+                Self::#variant_name(#matches) => {
+                    ::core::option::Option::Some((#matches))
+                }
+                _ => ::core::option::Option::None
+            }
+        }
+
+        #[doc = #doc_val ]
+        #[inline]
+        pub fn #function_name_val(self) -> ::core::result::Result<#returns_val, Self> {
+            match self {
+                Self::#variant_name(#matches) => {
+                    ::core::result::Result::Ok((#matches))
+                },
+                _ => ::core::result::Result::Err(self)
+            }
+        }
+    )
+}
+
+/// returns first the types to return, the match names, and then tokens to the field accesses
+fn named_fields_return(
+    variant_name: &syn::Ident,
+    (function_name_is, doc_is): (&Ident, &str),
+    (function_name_mut_ref, doc_mut_ref): (&Ident, &str),
+    (function_name_ref, doc_ref): (&Ident, &str),
+    (function_name_val, doc_val): (&Ident, &str),
+    fields: &syn::FieldsNamed,
+) -> TokenStream {
+    let (returns_mut_ref, returns_ref, returns_val, matches) = match fields.named.len() {
+        1 => {
+            let field = fields.named.first().expect("no fields on type");
+            let match_name = field.ident.as_ref().expect("expected a named field");
+
+            let returns = &field.ty;
+            let returns_mut_ref = quote!(&mut #returns);
+            let returns_ref = quote!(&#returns);
+            let returns_val = quote!(#returns);
+            let matches = quote!(#match_name);
+
+            (returns_mut_ref, returns_ref, returns_val, matches)
+        }
+        0 => (quote!(()), quote!(()), quote!(()), quote!(())),
+        _ => {
+            let mut returns_mut_ref = TokenStream::new();
+            let mut returns_ref = TokenStream::new();
+            let mut returns_val = TokenStream::new();
+            let mut matches = TokenStream::new();
+
+            for field in fields.named.iter() {
+                let rt = &field.ty;
+                let match_name = field.ident.as_ref().expect("expected a named field");
+
+                returns_mut_ref.extend(quote!(&mut #rt,));
+                returns_ref.extend(quote!(&#rt,));
+                returns_val.extend(quote!(#rt,));
+                matches.extend(quote!(#match_name,));
+            }
+
+            (
+                quote!((#returns_mut_ref)),
+                quote!((#returns_ref)),
+                quote!((#returns_val)),
+                quote!(#matches),
+            )
+        }
+    };
+
+    quote!(
+        #[doc = #doc_is ]
+        #[inline]
+        #[allow(unused_variables)]
+        pub fn #function_name_is(&self) -> bool {
+            matches!(self, Self::#variant_name{ #matches })
+        }
+
+        #[doc = #doc_mut_ref ]
+        #[inline]
+        pub fn #function_name_mut_ref(&mut self) -> ::core::option::Option<#returns_mut_ref> {
+            match self {
+                Self::#variant_name{ #matches } => {
+                    ::core::option::Option::Some((#matches))
+                }
+                _ => ::core::option::Option::None
+            }
+        }
+
+        #[doc = #doc_ref ]
+        #[inline]
+        pub fn #function_name_ref(&self) -> ::core::option::Option<#returns_ref> {
+            match self {
+                Self::#variant_name{ #matches } => {
+                    ::core::option::Option::Some((#matches))
+                }
+                _ => ::core::option::Option::None
+            }
+        }
+
+        #[doc = #doc_val ]
+        #[inline]
+        pub fn #function_name_val(self) -> ::core::result::Result<#returns_val, Self> {
+            match self {
+                Self::#variant_name{ #matches } => {
+                    ::core::result::Result::Ok((#matches))
+                }
+                _ => ::core::result::Result::Err(self)
+            }
+        }
+    )
+}
+
+fn impl_all_as_fns(ast: &DeriveInput) -> TokenStream {
+    let name = &ast.ident;
+    let generics = &ast.generics;
+
+    let enum_data = if let syn::Data::Enum(data) = &ast.data {
+        data
+    } else {
+        panic!("{} is not an enum", name);
+    };
+
+    let mut stream = TokenStream::new();
+
+    for variant_data in &enum_data.variants {
+        let variant_name = &variant_data.ident;
+        let function_name_ref = Ident::new(
+            &format!("as_{}", variant_name).to_snake_case(),
+            Span::call_site(),
+        );
+        let doc_ref = format!(
+            "Optionally returns references to the inner fields if this is a `{}::{}`, otherwise `None`",
+            name,
+            variant_name,
+        );
+        let function_name_mut_ref = Ident::new(
+            &format!("as_{}_mut", variant_name).to_snake_case(),
+            Span::call_site(),
+        );
+        let doc_mut_ref = format!(
+            "Optionally returns mutable references to the inner fields if this is a `{}::{}`, otherwise `None`",
+            name,
+            variant_name,
+        );
+
+        let function_name_val = Ident::new(
+            &format!("into_{}", variant_name).to_snake_case(),
+            Span::call_site(),
+        );
+        let doc_val = format!(
+            "Returns the inner fields if this is a `{}::{}`, otherwise returns back the enum in the `Err` case of the result",
+            name,
+            variant_name,
+        );
+
+        let function_name_is = Ident::new(
+            &format!("is_{}", variant_name).to_snake_case(),
+            Span::call_site(),
+        );
+        let doc_is = format!(
+            "Returns true if this is a `{}::{}`, otherwise false",
+            name, variant_name,
+        );
+
+        let tokens = match &variant_data.fields {
+            syn::Fields::Unit => unit_fields_return(variant_name, &function_name_is, &doc_is),
+            syn::Fields::Unnamed(unnamed) => unnamed_fields_return(
+                variant_name,
+                (&function_name_is, &doc_is),
+                (&function_name_mut_ref, &doc_mut_ref),
+                (&function_name_ref, &doc_ref),
+                (&function_name_val, &doc_val),
+                unnamed,
+            ),
+            syn::Fields::Named(named) => named_fields_return(
+                variant_name,
+                (&function_name_is, &doc_is),
+                (&function_name_mut_ref, &doc_mut_ref),
+                (&function_name_ref, &doc_ref),
+                (&function_name_val, &doc_val),
+                named,
+            ),
+        };
+
+        stream.extend(tokens);
+    }
+
+    let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
+
+    quote!(
+        impl #impl_generics #name #ty_generics #where_clause {
+            #stream
+        }
+    )
+}
+
+/// Derive functions on an Enum for easily accessing individual items in the Enum
+#[proc_macro_derive(EnumAsInner)]
+pub fn enum_as_inner(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+    // get a usable token stream
+    let ast: DeriveInput = parse_macro_input!(input as DeriveInput);
+
+    // Build the impl
+    let expanded: TokenStream = impl_all_as_fns(&ast);
+
+    // Return the generated impl
+    proc_macro::TokenStream::from(expanded)
+}
diff --git a/tests/basic.rs b/tests/basic.rs
new file mode 100644
index 0000000..49e2d35
--- /dev/null
+++ b/tests/basic.rs
@@ -0,0 +1,90 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[derive(Debug, EnumAsInner)]
+enum EmptyTest {}
+
+#[test]
+fn test_empty() {
+    let empty = std::option::Option::None::<EmptyTest>;
+
+    assert!(empty.is_none());
+}
+
+#[derive(Debug, EnumAsInner)]
+enum EmptyParendsTest {
+    Empty(),
+}
+
+#[test]
+fn test_empty_parends() {
+    let mut empty = EmptyParendsTest::Empty();
+
+    assert!(empty.is_empty());
+
+    empty
+        .as_empty()
+        .expect("should have been something and a unit");
+    empty
+        .as_empty_mut()
+        .expect("should have been something and a unit");
+
+    empty
+        .into_empty()
+        .expect("should have been something and a unit");
+}
+
+#[derive(Debug, EnumAsInner)]
+enum OneTest {
+    One(u32),
+}
+
+#[test]
+fn test_one() {
+    let mut empty = OneTest::One(1);
+
+    assert!(empty.is_one());
+    assert_eq!(*empty.as_one().unwrap(), 1);
+    assert_eq!(*empty.as_one_mut().unwrap(), 1);
+    assert_eq!(empty.into_one().unwrap(), 1);
+}
+
+#[derive(Debug, EnumAsInner)]
+enum MultiTest {
+    Multi(u32, u32),
+}
+
+#[test]
+fn test_multi() {
+    let mut multi = MultiTest::Multi(1, 1);
+
+    assert!(multi.is_multi());
+    assert_eq!(multi.as_multi().unwrap(), (&1_u32, &1_u32));
+    assert_eq!(multi.as_multi_mut().unwrap(), (&mut 1_u32, &mut 1_u32));
+    assert_eq!(multi.into_multi().unwrap(), (1_u32, 1_u32));
+}
diff --git a/tests/generics.rs b/tests/generics.rs
new file mode 100644
index 0000000..f7a515b
--- /dev/null
+++ b/tests/generics.rs
@@ -0,0 +1,53 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, Copy, EnumAsInner)]
+enum WithGenerics<T: Clone + Copy> {
+    A(T),
+    B(T),
+}
+
+#[test]
+fn with_generics() {
+    let mut with_generics = WithGenerics::A(100);
+
+    assert!(with_generics.is_a());
+    assert!(!with_generics.is_b());
+
+    assert!(with_generics.as_a().is_some());
+    assert!(with_generics.as_b().is_none());
+
+    assert_eq!(with_generics.into_a().unwrap(), 100);
+    assert_eq!(*with_generics.as_a().unwrap(), 100);
+    assert_eq!(*with_generics.as_a_mut().unwrap(), 100);
+
+    assert!(with_generics.into_b().is_err());
+    assert!(with_generics.as_b().is_none());
+    assert!(with_generics.as_b_mut().is_none());
+}
diff --git a/tests/named.rs b/tests/named.rs
new file mode 100644
index 0000000..d642722
--- /dev/null
+++ b/tests/named.rs
@@ -0,0 +1,99 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[derive(Debug, EnumAsInner)]
+enum ManyVariants {
+    One { one: u32 },
+    Two { one: u32, two: i32 },
+    Three { one: bool, two: u32, three: i64 },
+}
+
+#[test]
+fn test_one_named() {
+    let mut many = ManyVariants::One { one: 1 };
+
+    assert!(many.is_one());
+    assert!(!many.is_two());
+    assert!(!many.is_three());
+
+    assert!(many.as_one().is_some());
+    assert!(many.as_two().is_none());
+    assert!(many.as_three().is_none());
+
+    assert!(many.as_one_mut().is_some());
+    assert!(many.as_two_mut().is_none());
+    assert!(many.as_three_mut().is_none());
+
+    assert_eq!(*many.as_one().unwrap(), 1_u32);
+    assert_eq!(*many.as_one_mut().unwrap(), 1_u32);
+}
+
+#[test]
+fn test_two_named() {
+    let mut many = ManyVariants::Two { one: 1, two: 2 };
+
+    assert!(!many.is_one());
+    assert!(many.is_two());
+    assert!(!many.is_three());
+    assert!(many.as_one().is_none());
+    assert!(many.as_two().is_some());
+    assert!(many.as_three().is_none());
+    assert!(many.as_one_mut().is_none());
+    assert!(many.as_two_mut().is_some());
+    assert!(many.as_three_mut().is_none());
+
+    assert_eq!(many.as_two().unwrap(), (&1_u32, &2_i32));
+    assert_eq!(many.as_two_mut().unwrap(), (&mut 1_u32, &mut 2_i32));
+    assert_eq!(many.into_two().unwrap(), (1_u32, 2_i32));
+}
+
+#[test]
+fn test_three_named() {
+    let mut many = ManyVariants::Three {
+        one: true,
+        two: 1,
+        three: 2,
+    };
+
+    assert!(!many.is_one());
+    assert!(!many.is_two());
+    assert!(many.is_three());
+    assert!(many.as_one().is_none());
+    assert!(many.as_two().is_none());
+    assert!(many.as_three().is_some());
+    assert!(many.as_one_mut().is_none());
+    assert!(many.as_two_mut().is_none());
+    assert!(many.as_three_mut().is_some());
+
+    assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+    assert_eq!(
+        many.as_three_mut().unwrap(),
+        (&mut true, &mut 1_u32, &mut 2_i64)
+    );
+    assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+}
diff --git a/tests/snake_case.rs b/tests/snake_case.rs
new file mode 100644
index 0000000..4b7d593
--- /dev/null
+++ b/tests/snake_case.rs
@@ -0,0 +1,69 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[derive(Debug, EnumAsInner)]
+#[allow(non_camel_case_types)]
+#[allow(clippy::upper_case_acronyms)]
+enum MixedCaseVariants {
+    XMLIsNotCool,
+    Rust_IsCoolThough(u32),
+    YMCA { named: i16 },
+}
+
+#[test]
+fn test_xml_unit() {
+    let mixed = MixedCaseVariants::XMLIsNotCool;
+
+    assert!(mixed.is_xml_is_not_cool());
+    assert!(mixed.as_rust_is_cool_though().is_none());
+    assert!(mixed.as_ymca().is_none());
+}
+
+#[test]
+fn test_rust_unnamed() {
+    let mixed = MixedCaseVariants::Rust_IsCoolThough(42);
+
+    assert!(!mixed.is_xml_is_not_cool());
+    assert!(mixed.as_rust_is_cool_though().is_some());
+    assert!(mixed.as_ymca().is_none());
+
+    assert_eq!(*mixed.as_rust_is_cool_though().unwrap(), 42);
+    assert_eq!(mixed.into_rust_is_cool_though().unwrap(), 42);
+}
+
+#[test]
+fn test_ymca_named() {
+    let mixed = MixedCaseVariants::YMCA { named: -32_768 };
+
+    assert!(!mixed.is_xml_is_not_cool());
+    assert!(mixed.as_rust_is_cool_though().is_none());
+    assert!(mixed.as_ymca().is_some());
+
+    assert_eq!(*mixed.as_ymca().unwrap(), (-32_768));
+    assert_eq!(mixed.into_ymca().unwrap(), (-32_768));
+}
diff --git a/tests/unit.rs b/tests/unit.rs
new file mode 100644
index 0000000..a1a92ff
--- /dev/null
+++ b/tests/unit.rs
@@ -0,0 +1,61 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[derive(EnumAsInner)]
+enum UnitVariants {
+    Zero,
+    One,
+    Two,
+}
+
+#[test]
+fn test_zero_unit() {
+    let unit = UnitVariants::Zero;
+
+    assert!(unit.is_zero());
+    assert!(!unit.is_one());
+    assert!(!unit.is_two());
+}
+
+#[test]
+fn test_one_unit() {
+    let unit = UnitVariants::One;
+
+    assert!(!unit.is_zero());
+    assert!(unit.is_one());
+    assert!(!unit.is_two());
+}
+
+#[test]
+fn test_two_unit() {
+    let unit = UnitVariants::Two;
+
+    assert!(!unit.is_zero());
+    assert!(!unit.is_one());
+    assert!(unit.is_two());
+}
diff --git a/tests/unnamed.rs b/tests/unnamed.rs
new file mode 100644
index 0000000..4bf0ea5
--- /dev/null
+++ b/tests/unnamed.rs
@@ -0,0 +1,100 @@
+#![warn(
+    clippy::default_trait_access,
+    clippy::dbg_macro,
+    clippy::print_stdout,
+    clippy::unimplemented,
+    clippy::use_self,
+    missing_copy_implementations,
+    missing_docs,
+    non_snake_case,
+    non_upper_case_globals,
+    rust_2018_idioms,
+    unreachable_pub
+)]
+
+use enum_as_inner::EnumAsInner;
+
+pub mod name_collisions {
+    #![allow(dead_code, missing_copy_implementations, missing_docs)]
+    pub struct Option;
+    pub struct Some;
+    pub struct None;
+    pub struct Result;
+    pub struct Ok;
+    pub struct Err;
+}
+#[allow(unused_imports)]
+use name_collisions::*;
+
+#[derive(Debug, EnumAsInner)]
+enum ManyVariants {
+    One(u32),
+    Two(u32, i32),
+    Three(bool, u32, i64),
+}
+
+#[test]
+fn test_one_unnamed() {
+    let mut many = ManyVariants::One(1);
+
+    assert!(many.is_one());
+    assert!(!many.is_two());
+    assert!(!many.is_three());
+
+    assert!(many.as_one().is_some());
+    assert!(many.as_two().is_none());
+    assert!(many.as_three().is_none());
+
+    assert!(many.as_one_mut().is_some());
+    assert!(many.as_two_mut().is_none());
+    assert!(many.as_three_mut().is_none());
+
+    assert_eq!(*many.as_one().unwrap(), 1_u32);
+    assert_eq!(*many.as_one_mut().unwrap(), 1_u32);
+    assert_eq!(many.into_one().unwrap(), 1_u32);
+}
+
+#[test]
+fn test_two_unnamed() {
+    let mut many = ManyVariants::Two(1, 2);
+
+    assert!(!many.is_one());
+    assert!(many.is_two());
+    assert!(!many.is_three());
+
+    assert!(many.as_one().is_none());
+    assert!(many.as_two().is_some());
+    assert!(many.as_three().is_none());
+
+    assert!(many.as_one_mut().is_none());
+    assert!(many.as_two_mut().is_some());
+    assert!(many.as_three_mut().is_none());
+
+    assert_eq!(many.as_two().unwrap(), (&1_u32, &2_i32));
+    assert_eq!(many.as_two_mut().unwrap(), (&mut 1_u32, &mut 2_i32));
+    assert_eq!(many.into_two().unwrap(), (1_u32, 2_i32));
+}
+
+#[test]
+fn test_three_unnamed() {
+    let mut many = ManyVariants::Three(true, 1, 2);
+
+    assert!(!many.is_one());
+    assert!(!many.is_two());
+    assert!(many.is_three());
+
+    assert!(many.as_one().is_none());
+    assert!(many.as_two().is_none());
+    assert!(many.as_three().is_some());
+
+    assert!(many.as_one_mut().is_none());
+    assert!(many.as_two_mut().is_none());
+    assert!(many.as_three_mut().is_some());
+
+    assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
+    assert_eq!(
+        many.as_three_mut().unwrap(),
+        (&mut true, &mut 1_u32, &mut 2_i64)
+    );
+    assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
+}