Began work on C++ back-end.

3 files changed, 190 insertions, 0 deletions

diff --git a/lux-c++/commands.md b/lux-c++/commands.md
new file mode 100644
index 000000000..53ad68455
--- /dev/null
+++ b/lux-c++/commands.md
@@ -0,0 +1,79 @@
+# Develop
+```
+cd ~/lux/lux-c++/ \
+&& lux clean \
+&& lux with python auto build
+```
+
+# Build
+
+```
+cd ~/lux/lux-c++/ \
+&& lux clean \
+&& lux with c++ auto build
+
+## Build JVM-based compiler
+cd ~/lux/lux-c++/ \
+&& lux clean \
+&& lux with jvm build \
+&& mv target/program.jar jvm_based_compiler.jar
+
+## Use JVM-based compiler to produce a c++/Node-based compiler.
+cd ~/lux/lux-c++/ \
+&& lux clean \
+&& time java -jar jvm_based_compiler.jar build --source ~/lux/lux-c++/source --target ~/lux/lux-c++/target --module program --program _ \
+&& mv target/program.c++ node_based_compiler.c++
+
+## Use C++/Node-based compiler to produce another c++/Node-based compiler.
+cd ~/lux/lux-c++/ \
+&& lux clean \
+&& node --stack_size=8192 node_based_compiler.c++ build --source ~/lux/lux-c++/source --target ~/lux/lux-c++/target --module program --program _
+```
+
+# Try
+
+```
+cd ~/lux/lux-c++/ \
+&& conda activate WORK \
+&& python3 target/program.py
+
+## Compile Lux's Standard Library's tests using a c++/Node-based compiler.
+cd ~/lux/stdlib/ \
+&& lux clean \
+&& node --stack_size=8192 ~/lux/lux-c++/target/program.c++ build --source ~/lux/stdlib/source --target ~/lux/stdlib/target --module test/lux --program _ \
+&& node ~/lux/stdlib/target/program.c++
+```
+
+# Deploy
+
+```
+cd ~/lux/lux-c++/ \
+&& mvn install:install-file -Dfile=target/program.c++ -DgroupId=com.github.luxlang -DartifactId=lux-c++ -Dversion=0.8.0-SNAPSHOT -Dpackaging=c++
+
+cd ~/lux/lux-c++/ && mvn deploy:deploy-file \
+-Durl=https://$NEXUS_USERNAME:$NEXUS_PASSWORD@oss.sonatype.org/content/repositories/snapshots/ \
+-Dfile=target/program.c++ \
+-DgroupId=com.github.luxlang \
+-DartifactId=lux-c++ \
+-Dversion=0.8.0-SNAPSHOT \
+-Dpackaging=c++
+```
+
+# Release
+
+```
+LUX_PROJECT=lux-c++ && \
+LUX_VERSION=0.7.0 && \
+cd ~/lux/$LUX_PROJECT/ && \
+lux pom && \
+mv pom.xml RELEASE/$LUX_PROJECT-$LUX_VERSION.pom && \
+mv target/program.c++ RELEASE/$LUX_PROJECT-$LUX_VERSION.c++ && \
+cd RELEASE && \
+touch README.md && \
+zip $LUX_PROJECT-$LUX_VERSION-sources.jar README.md && \
+zip $LUX_PROJECT-$LUX_VERSION-javadoc.jar README.md && \
+zip $LUX_PROJECT-$LUX_VERSION.jar README.md && \
+rm README.md && \
+for file in *.*; do gpg -ab $file; done
+```
+
diff --git a/lux-c++/project.lux b/lux-c++/project.lux
new file mode 100644
index 000000000..564c47f28
--- /dev/null
+++ b/lux-c++/project.lux
@@ -0,0 +1,24 @@
+[""
+ ["identity" ["com.github.luxlang" "lux-c++" "0.8.0-SNAPSHOT"]
+  "info" ["description" "A C++ compiler for Lux."
+          "url" "https://github.com/LuxLang/lux"
+          "scm" "https://github.com/LuxLang/lux.git"
+          "licenses" [["name" "Lux License v0.1.2"
+                       "url" "https://github.com/LuxLang/lux/blob/master/license.txt"
+                       "type" "repo"]]
+          "developers" [["name" "Eduardo Julian"
+                         "url" "https://github.com/eduardoejp"]]]
+  
+  "deploy_repositories" {"snapshots" "https://oss.sonatype.org/content/repositories/snapshots/"
+                         "releases" "https://oss.sonatype.org/service/local/staging/deploy/maven2/"}
+
+  "repositories" ["https://oss.sonatype.org/content/repositories/snapshots/"
+                  "https://oss.sonatype.org/service/local/staging/deploy/maven2/"]
+  
+  "dependencies" [... ["com.github.luxlang" "stdlib" "0.8.0-SNAPSHOT" "tar"]
+                  ]
+  
+  "program" program._]
+
+ "python"
+ ["lux" ["com.github.luxlang" "lux-python" "0.8.0-SNAPSHOT" "jar"]]]
diff --git a/lux-c++/source/program.lux b/lux-c++/source/program.lux
new file mode 100644
index 000000000..6bfa65d4f
--- /dev/null
+++ b/lux-c++/source/program.lux
@@ -0,0 +1,87 @@
+... https://github.com/wlav/cppyy
+(.require
+ [library
+  [lux (.except)
+   [program (.only program)]
+   ["[0]" ffi (.only import)]
+   ["[0]" debug]
+   [abstract
+    [monad (.only do)]]
+   [control
+    ["[0]" maybe (.use "[1]#[0]" monad)]
+    ["[0]" try (.only Try)]
+    ["[0]" exception (.only Exception)]
+    ["[0]" io (.only IO io)]
+    ["[0]" function]
+    [concurrency
+     ["[0]" async (.only Async)]]]
+   [data
+    ["[0]" product]
+    [text
+     ["%" \\format (.only format)]
+     [encoding
+      ["[0]" utf8]]]
+    [collection
+     ["[0]" array (.only Array)]]]
+   [math
+    [number
+     ["n" nat]
+     ["i" int]
+     ["[0]" i64]]]
+   ["[0]" world
+    ["[0]" file]
+    ["[1]/[0]" environment]]
+   [meta
+    ["@" target (.only)
+     ["_" js]]
+    [macro
+     ["^" pattern]
+     ["[0]" template]]
+    [compiler
+     [reference
+      [variable (.only Register)]]
+     [language
+      [lux
+       [program (.only Program)]
+       [translation (.only Host)]
+       [analysis
+        [macro (.only Expander)]]
+       ["[0]" phase (.only Operation Phase)
+        ["[0]" extension (.only Extender Handler)
+         ["[0]" analysis
+          ["[1]" js]]
+         ["[0]" translation
+          ["[1]" js]]]
+        [translation
+         ["[0]" reference]
+         ["[0]" js (.only)
+          ["[0]" runtime]
+          ["[1]/[0]" reference]]]]]]
+     [default
+      ["[0]" platform (.only Platform)]]
+     [meta
+      ["[0]" cli]
+      ["[0]" context]
+      [archive (.only Archive)
+       ["[0]" unit]]
+      ["[0]" packager
+       ["[1]" script]]]]]]]
+ [program
+  ["/" compositor]])
+
+(import cppyy
+  "[1]::[0]"
+  ("static" cppdef [Text] "io" Bit)
+  ("static" gbl (ffi.Object Any)))
+
+(def _
+  (program []
+    (do io.monad
+      [? (cppyy::cppdef ["void say_hello() { std::cout << 123 << std::endl; }"])
+       .let [_ (debug.log! (%.format "BEFORE " (%.bit ?)))]
+       global (cppyy::gbl)
+       .let [say_hello (as ffi.Function
+                           (.python_object_get# "say_hello" global))
+             _ (debug.log! "AFTER")
+             _ (.python_apply# say_hello [])]]
+      (in (debug.log! "Hello, C++")))))