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Shapeless Guide Code

Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.

This repository contains code for the main examples in The Type Astronaut's Guide to Shapeless.

If you want to discuss the content or exercises with the authors, join us in our chat room on Gitter.

Gitter

Using the Source Code

This repository contains two branches: one for exercises and one for solutions. The directory structure is the same in each branch.

You will need to have Git and Java and an internet connection to run the exercises. All other dependendencies are either included with the repo or downloaded on demand during compilation.

Notes on Editors and IDEs

If you don't have a particular preference for a Scala editor or IDE, we recommend the Atom editor and a Linux or OS X terminal. See the instructions below to get started.

If you want to use Scala IDE for Eclipse, we recommend using sbteclipse. Follow the instructions on the sbteclipse web page to install it as a global SBT plugin.

If you want to use IntelliJ IDEA, follow the instructions for Importing an SBT Project in the IntelliJ online documentation.

Getting Started on Linux or OS X

To get started:

  1. Clone this repository to a directory on your hard drive, e.g. ~/shapeless-guide-code:

    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:

    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script. You may have to wait while SBT downloads various dependencies:

    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt. You may have to wait while SBT downloads various dependencies.

  5. If you see the message "Hello from shapeless!", you're ready to go!

If you have any problems getting started, get in touch on Gitter.

About

Example code to accompany shapeless-guide.

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

132 stars

Watchers

5 watching

Forks

51 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
About
Example code to accompany shapeless-guide.
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
132 stars
Watchers
5 watching
Forks
51 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Shapeless Guide Code
Copyright 2016-17 Dave Gurnell. Licensed Apache 2.0.
This repository contains code for the main examples in
The Type Astronaut's Guide to Shapeless.
If you want to discuss the content or exercises with the authors,
join us in our chat room on Gitter.
Gitter
Using the Source Code
This repository contains two branches: one for exercises and one for solutions.
The directory structure is the same in each branch.
You will need to have Git and Java and an internet connection to run the exercises.
All other dependendencies are either included with the repo
or downloaded on demand during compilation.
Notes on Editors and IDEs
If you don't have a particular preference for a Scala editor or IDE,
we recommend the Atom editor and a Linux or OS X terminal.
See the instructions below to get started.
If you want to use Scala IDE for Eclipse,
we recommend using sbteclipse.
Follow the instructions on the sbteclipse web page
to install it as a global SBT plugin.
If you want to use IntelliJ IDEA,
follow the instructions for Importing an SBT Project
in the IntelliJ online documentation.
Getting Started on Linux or OS X
To get started:
  1. Clone this repository to a directory on your hard drive,
e.g. ~/shapeless-guide-code:
    bash$ git clone https://github.com/underscoreio/shapeless-guide-code.git

  2. Change to the root directory in the repository:
    bash$ cd shapeless-guide-code

  3. Run the sbt.sh script.
You may have to wait while SBT downloads various dependencies:
    bash$ ./sbt.sh
# Lots of output here...
# The first run will take a while...
>

  4. Type helloworld/run at the SBT prompt.
You may have to wait while SBT downloads various dependencies.
  5. If you see the message "Hello from shapeless!", you're ready to go!
If you have any problems getting started, get in touch on Gitter.
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Example code to accompany shapeless-guide.
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