implicitly-yours

Sample Code for Dallas Scala Enthusiasts presentation

The Slides

TL;DR Slides here

Since the default branch is gh-pages, go to http://gangstead.github.io/implicitly-yours to view the slides.

To view the slides locally start a static http server from that directory. My preferred way:

# one time, to install the dependency
> npm install -g http-server

# start the server in the base directory. -o flag opens browser
> http-server -o

The Code

TL;DR `sbt run`

Running

The sample code has multiple main classes. From the command line type sbt run and you will get prompted to choose one:

gangstead$ sbt run
[info] Loading global plugins from /Users/gangstead/.sbt/0.13/plugins
[info] Loading project definition from /Users/gangstead/scala/implicitly-yours/project
[info] Set current project to implicitly-yours (in build file:/Users/gangstead/scala/implicitly-yours/)
[info] Compiling 3 Scala sources to /Users/gangstead/scala/implicitly-yours/target/scala-2.11/classes...
[warn] Multiple main classes detected.  Run 'show discoveredMainClasses' to see the list

Multiple main classes detected, select one to run:

[1] gangstead.akka.main
[2] gangstead.ImplicitlyImplicit
[3] gangstead.ImplicitClassUseCase
[4] gangstead.ImplicitParams
[5] gangstead.ImplicitConversionUseCase

Enter number: 2

If you want to make changes to the code and see compiler output in real time then use the command sbt ~compile

gangstead$ sbt ~compile
[info] Loading global plugins from /Users/gangstead/.sbt/0.13/plugins
[info] Loading project definition from /Users/gangstead/scala/implicitly-yours/project
[info] Set current project to implicitly-yours (in build file:/Users/gangstead/scala/implicitly-yours/)
[info] Compiling 3 Scala sources to /Users/gangstead/scala/implicitly-yours/target/scala-2.11/classes...
[success] Total time: 7 s, completed Jan 9, 2015 12:32:05 PM
1. Waiting for source changes... (press enter to interrupt)
_

Now whenever you save a file sbt will recompile and display any warnings or errors.

Building IDE files

Eclipse

This project includes the plugin to generate Eclipse project files. From the console:

> sbt eclipse

Then in Eclipse File > Import > Existing Projects and find this project.

Optionally if you want to include the sources of the dependencies:

> sbt
#sbt starts up...
> eclipse with-source=true

This will take longer in big projects, but this project is small. I don't know why you can't just do sbt eclipse with-source=true. That's what the plugin docs say, but it won't work for me.

IDEA

Intellij IDEA can import SBT projects natively.

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