Elango Cheran echeran

For your transpiler, how did you decide which source language and target language(s) to focus on?
Were there any existing transpiler solutions that solved part of all of the problem surface you were addressing? If so, which factors led to you choosing to create your own transpiler instead of reusing existing solutions?
Who were your stakeholders when starting the project?
What were obstacles that you faced when starting the project?
What were obstacles that you faced during the implementation of the project?
What factors led to the success of the project?
How much time has been spent on the project since the beginning?
Are there any remaining features that you would still like to fix in the transpiling project?
What are the technical considerations / challenges for anyone considering a transpiling approach? Are there unwritten pearls of wisdom about transpilers / compilers?
What is your opinion on why there are few (no?) “universal” general purpose one-to-all transpilers? Ex:

	(require '[clj-time.core :as t])
	(require '[flambo.api :as f])

	(defn date-filter-fn
	"Given a LocalDate, returns a serializable fn that takes a DateTime
	object and returns true if the DateTime fields match those of the
	provided LocalDate, else returns false."
	[local-date]
	;; returning a serializable fn to be used with Flambo/Spark's filter operation
	(f/fn

	(require '[claypoole.core :as tpool])

	;;
	;; helper fns
	;;
	(defn your-multi-threaded-spark-fn
	"Create a parallelized version of your-fn using a fixed-size threadpool.
	This fn is created to fit the signature of .mapPartitions in Spark."
	[extra-args-to-set-up-your-fn]
	(fn

	/**
	Copyright 2018 Google LLC.

	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

	https://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software

	/*
	Copyright 2018 Google LLC.

	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

	https://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software

	(ns your.namespace.async-util
	(:require
	[clojure.core.async :as a :refer [>! <! >!! <!! go chan buffer
	close! thread alts! alts!! timeout]]
	[clojure.core.match :as match :refer [match]]))

	;;
	;; core.async util fns
	;;

	2015-12-27 00:22:56,112 DEBUG com.google.cloud.dataflow.sdk.options.PipelineOptionsFactory - Provided Arguments: {}
	Exception in thread "main" java.lang.IllegalArgumentException: interface TestWordCountOptions is not visible from class loader
	at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:581)
	at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
	at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
	at java.lang.reflect.WeakCache.get(WeakCache.java:127)
	at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
	at java.lang.reflect.Proxy.getProxyClass(Proxy.java:371)
	at com.google.cloud.dataflow.sdk.options.PipelineOptionsFactory.validateWellFormed(PipelineOptionsFactory.java:587)
	at com.google.cloud.dataflow.sdk.options.PipelineOptionsFactory.parseObjects(PipelineOptionsFactory.java:1242)

	(defproject mvn-lein-test "0.1.0-SNAPSHOT"
	:description "FIXME: write description"
	:url "http://example.com/FIXME"
	:license {:name "Eclipse Public License"
	:url "http://www.eclipse.org/legal/epl-v10.html"}
	:dependencies [[org.clojure/clojure "1.7.0"]
	[medley "0.7.0"]
	[leiningen "2.5.3"]]
	:main mvnleintest.core
	:aot :all

	<project>
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.mycompany.app</groupId>
	<artifactId>my-app</artifactId>
	<version>1</version>

	<repositories>
	<repository>
	<id>clojars</id>
	<name>Clojars</name>