Compare commits
8 Commits
Author | SHA1 | Date | |
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3effe65f01 | |||
221d85ebbe | |||
dc19df8811 | |||
b1f87428f5 | |||
87a6fbc642 | |||
e3ff1f259e | |||
d1c3ed3481 | |||
f789ed94fd |
23
.drone.yml
23
.drone.yml
@ -29,7 +29,18 @@ steps:
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- java -jar /drone/lib/spt/org.metaborg.spt.cmd/target/org.metaborg.spt.cmd* -l . -s /drone/lib/spt/org.metaborg.meta.lang.spt -t tests
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- mkdir -p lib
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- curl -o lib/sunshine.jar -L 'http://artifacts.metaborg.org/service/local/artifact/maven/redirect?r=snapshots&g=org.metaborg&a=org.metaborg.sunshine2&v=LATEST'
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- bin/fosgen tests/emit_sum.fos
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- name: setup_gen
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image: gcc
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volumes:
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- name: m2
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path: /root/.m2
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commands:
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- git clone https://github.com/facebook/nailgun.git
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- cd nailgun
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- make
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- cd ../bin
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- ln -s ../nailgun/nailgun-client/target/ng .
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- cd ..
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- name: extract_tests
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image: xonsh/xonsh
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commands:
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@ -41,7 +52,8 @@ steps:
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path: /drone/lib
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- name: m2
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path: /root/.m2
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commands:
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commands: # Note we first make sure that fosgen is working
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- bin/fosgen -d tests/emit_sum.fos
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- bin/generate_test_code
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- name: python_tests
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image: python:slim
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@ -55,6 +67,13 @@ steps:
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image: haskell
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commands:
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- bin/run_tests runghc hs
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- name: ocaml_tests
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image: ocaml/opam
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commands:
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- ls -als tests/extracted
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- opam init
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- eval $(opam env)
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- bin/run_tests ocaml ml
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volumes:
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- name: lib
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6
.gitignore
vendored
6
.gitignore
vendored
@ -12,10 +12,16 @@
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.pydevproject
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a.out
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*.aterm
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/site
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bin/ng
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tests/extracted/*
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tests/*.js
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tests/*.py
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tests/*.hs
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tests/*.ml
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tests/*.cmi
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tests/*.cmo
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adhoc*
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@ -19,6 +19,7 @@ EXP = 'expect'
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for path in TEST_LIST:
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destdir = pf"{DESTINATION}/{path.stem}"
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mkdir -p @(destdir)
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chmod ugo+rwx @(destdir)
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contents = path.read_text()
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tests = re.split(r'test\s*(.+?)\s*\[\[.*?\n', contents)[1:]
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testit = iter(tests)
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20
bin/fosgen
20
bin/fosgen
@ -5,6 +5,7 @@ erro() { printf "%s\n" "$*" >&2; }
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##### Set defaults:
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SUPPRESS_ERR=YES
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USE_NAILGUN=YES
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LANGUAGE=Python
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##### Extract command line options:
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@ -14,18 +15,23 @@ do
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-h|--help)
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echo
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echo "Usage:"
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echo " fosgen [-d] [-l LANGUAGE] FILE"
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echo " fosgen [-d] [-j] [-l LANGUAGE] FILE"
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echo
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echo "Writes to standard output the code generated from the fostr"
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echo "program in FILE, targeting the specified LANGUAGE (which"
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echo "defaults to Python)."
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echo
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echo "The -d option writes diagnostic output to standard error."
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echo "The -j option uses the Spoofax Sunshine JAR directly, rather"
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echo "than via nailgun."
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exit
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;;
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-d)
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SUPPRESS_ERR=''
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;;
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-j)
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USE_NAILGUN=''
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;;
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-l)
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shift
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LANGUAGE="$1"
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@ -67,5 +73,17 @@ then
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exec 2>/dev/null
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fi
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if [[ $USE_NAILGUN ]]
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then
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if [[ $SUPPRESS_ERR ]]
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then
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$BINDIR/let_sun_shine
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else
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$BINDIR/let_sun_shine noisy
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fi
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$BINDIR/ng sunshine transform -p $PROJDIR -n $LANGUAGE -i $PROGRAM
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exit $?
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fi
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java -jar $SUNJAR transform -p $PROJDIR -l $PROJDIR -l $MVN_REPO -n $LANGUAGE -i $PROGRAM
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exit $?
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@ -4,7 +4,7 @@ failed=0
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for dir in tests/extracted/*; do
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for file in $dir/*.fos; do
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for language in Python Javascript Haskell; do
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for language in Python Javascript Haskell OCaml; do
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echo bin/fosgen -l ${language%.*} $file ...
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bin/fosgen -l $language $file
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if [[ $? -ne 0 ]]; then
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40
bin/let_sun_shine
Executable file
40
bin/let_sun_shine
Executable file
@ -0,0 +1,40 @@
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#!/bin/bash
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# Helper for fosgen, not intended to be used directly
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# With an argument, print diagnostic output
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BINDIR=$(dirname $BASH_SOURCE)
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if $BINDIR/ng sunshine --help
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then
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if [[ $1 ]]
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then
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echo "sun already shining."
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fi
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else
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if [[ $1 ]]
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then
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echo "disperse the clouds."
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fi
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SUNJAR="$BINDIR/../lib/sunshine.jar"
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PROJDIR="$BINDIR/.."
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if [[ ! $MVN_REPO ]]; then
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MVN_REPO="$HOME/.m2/repository"
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fi
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if [[ ! -d $MVN_REPO ]]; then
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MVN_REPO="/root/.m2/repository"
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fi
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if [[ ! -d $MVN_REPO ]]; then
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echo "Cannot find your Maven repository. Please set environment variable"
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echo "MVN_REPO to its full path and re-run."
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exit 1
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fi
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if [[ $1 ]]
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then
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java -jar $SUNJAR server &
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else
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java -jar $SUNJAR server >/dev/null 2>&1 &
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fi
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sleep 5
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$BINDIR/ng sunshine load -l $PROJDIR -l $MVN_REPO
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fi
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@ -4,3 +4,4 @@ menus
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action: "Python" = to-python
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action: "Javascript" = to-javascript
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action: "Haskell" = to-haskell
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action: "OCaml" = to-ocaml
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@ -59,8 +59,8 @@ For example, this snippet generates the following Python:
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It generates nearly identical code in
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this simple example for Javascript (just with `"Hello, world!"`
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in place of `r'Hello, world!'`), although it generates a different
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preamble defining Stdio for each language. (Currently, Haskell code
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generation is also supported.)
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preamble defining Stdio for each language. (Currently, Haskell and OCaml
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code generation are also supported.)
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There's not much to break down in such a tiny program as this, but let's do
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it. The prefix operator `<<<` could be read as "the default stream receives...",
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@ -108,7 +108,7 @@ again. That way we can use the general (left-associative)
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parse to TopLevel(
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Gets(Gets(Gets(Gets(DefGets(LitString("'Two and '")),Int("2")),
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LitString("' make '")),Sum(Int("2"),Int("2"))),
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EscString("\"./n\"")))
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EscString("\".\n\"")))
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/** writes
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Two and 2 make 4.
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**/
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@ -6,6 +6,7 @@ imports
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pp
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outline
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analysis
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ocaml
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haskell
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javascript
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python
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@ -10,7 +10,7 @@ rules
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rule.
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C) We will use bottomup-para to traverse the full AST with the
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transformation from A so that we have access to the original expression
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(and get get the Statix-associated type when we need to).
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(and can get the Statix-associated type when we need to).
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Hence the transformation in (A) must actually take a pair of
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an (original) term and a term with value strings at each child,
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and be certain to return a value string.
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61
trans/ocaml.str
Normal file
61
trans/ocaml.str
Normal file
@ -0,0 +1,61 @@
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module ocaml
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imports libstrategolib signatures/- util signature/TYPE analysis
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/* Note will use bottomup-para to traverse the full AST so that
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we have access to the original expression (and can get the
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Statix-associated type when we need to).
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This means that every one of our local rules must take a pair
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of an original term and a term with every child replaced by
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its generated code.
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*/
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rules
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ml: (_, TopLevel(x)) -> $[(* fostr preamble *)
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type stream = { getS: string -> stream }
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let rec stdio = {
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getS = (fun s -> print_string s; stdio)
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};;
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(* End of preamble *)
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[x]]
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ml: (_, Stream()) -> $[stdio]
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ml: (_, Int(x)) -> x
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ml: (_, LitString(x)) -> $[{|[<un-single-quote>x]|}]
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ml: (_, EscString(x)) -> x
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ml: (_, Sum(x,y)) -> $[[x] + [y]]
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ml: (Gets(_,yn), Gets(x, y))
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-> $[([x]).getS ([<ml_str>(yn,y)])]
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ml: (To(xn,_), To(x, y))
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-> $[let _fto = ([x]) in (ignore (([y]).getS ([<ml_str>(xn,"_fto")])); _fto)]
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ml: (_, Terminate(x)) -> x
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ml: (_, Sequence(l)) -> <ml_seq>l
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ml_seq: [x] -> x
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ml_seq: [x | xs ] -> $[ignore ([x]);
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[<ml_seq>xs]]
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/* One drawback of using paramorphism is we have to handle lists
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explicitly:
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*/
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ml: (_, []) -> []
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ml: (_, [x | xs]) -> [x | xs]
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/* Another drawback of using paramorphism is at the very leaves we have
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to undouble the tuple:
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*/
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ml: (x, x) -> x where <is-string>x
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ml_str: (node, code) -> $[[<ml_string_cast>node]([code])]
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strategies
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ml_string_cast = get-type; (?INT() < !"string_of_int" + !"")
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ocaml = bottomup-para(try(ml))
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// Interface ocaml code generation with editor services and file system
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to-ocaml: (selected, _, _, path, project-path) -> (filename, result)
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with filename := <guarantee-extension(|"ml")> path
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; result := <ocaml> selected
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Loading…
Reference in New Issue
Block a user