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joeduffy cff883211b Implement function calls in the interpreter
This change adds support for function calls.  We do not yet wire it
into the various function call expressions, however, that should be
relatively trivial after this change.  (It is dependent on figuring
out the runtime representation of load location objects and subsequent
uses of them).  This change also updates the scoping logic to respect
"activation frame" style of lexical scoping, where an inner function
as a result of a call should not have access to the callee context.

This change also includes logic to detect unhandled exceptions and to
print an error as a result.  Eventually, we will want stack traces here.
2017-01-25 15:04:47 -08:00
cmd Move compiler options to pkg/compiler/core 2017-01-23 08:10:49 -08:00
docs Start a MuJS design document 2017-01-17 11:42:49 -08:00
examples Add a example web crawler Mu blueprint 2017-01-12 14:59:18 -08:00
lib Rearrange the library code 2017-01-20 10:30:43 -08:00
pkg Implement function calls in the interpreter 2017-01-25 15:04:47 -08:00
tools/mujs Begin doing evaluation 2017-01-25 10:13:06 -08:00
.gitignore Move all cloud switching to mu/x MuPackage 2017-01-20 09:46:59 -08:00
.gitmodules Add Docker Compose and Kubernetes conversions as submodules 2016-11-01 10:30:39 -07:00
glide.lock Switch back to the official YAML repo 2016-12-09 11:59:05 -08:00
glide.yaml Switch back to the official YAML repo 2016-12-09 11:59:05 -08:00
main.go Move glogging into Mu command startup/teardown 2016-11-19 16:42:27 -08:00
Makefile Test packages when making the project 2016-11-15 19:25:06 -08:00
README.md Add a README pointer to the overview doc 2017-01-01 15:19:22 -08:00

Mu

Mu is a framework and toolset for creating reusable stacks of services.

If you are learning about Mu for the first time, please see the overview document.

Building and Testing

To build Mu, first clone it into a standard Go workspace:

$ mkdir -p $GOPATH/src/github.com/marapongo
$ git clone git@github.com:marapongo/mu $GOPATH/src/github.com/marapongo/mu

A good default value for GOPATH is ~/go.

Mu needs to know where to look for its runtime, library, etc. By default, it will look in /usr/local/mu, however you can override this with the MUPATH variable. Normally it's easiest just to create a symlink:

$ ln -s $GOPATH/src/github.com/marapongo/mu /usr/local/mu

There is one additional build-time dependency, golint, which can be installed using:

$ go get -u github.com/golang/lint/golint

And placed on your path by:

$ export PATH=$PATH:$GOPATH/bin

At this point you should be able to build and run tests from the root directory:

$ cd $GOPATH/src/github.com/marapongo/mu
$ make

This installs the mu binary into $GOPATH/bin, which may now be run provided make exited successfully.