git » jacl.git » commit 3cbb4bf

OMG WE HAVE REPL

author Alan Dipert
2019-12-22 06:48:16 UTC
committer Alan Dipert
2019-12-22 06:48:16 UTC
parent 4eeb8803c6fa61ac05212fc6caefe4f26ca6c7d4
OMG WE HAVE REPL
jacl.js +41 -17
repl-client/.gitignore +0 -2
repl-client/Cargo.lock +0 -938
repl-client/Cargo.toml +0 -11
repl-client/jacl-client.R +35 -0
repl-client/src/main.rs +0 -17 
diff --git a/jacl.js b/jacl.js
index a8a5fcf..84379bc 100644
--- a/jacl.js
+++ b/jacl.js
@@ -1828,23 +1828,47 @@ const emitter = (() => {
   };
 });
 
-var buf = new BufferedStream(),
-    rdr = new Reader(buf);
-
-(async function() {
-  for await(const obj of rdr) {
-    console.log('read:', obj);
-    const node = analyze(emptyEnv, null, obj);
-    console.log('analyzed:', node);
-    const sb = new StringBuffer();
-    emitNode(sb.append.bind(sb), node);
-    const code = sb.toString();
-    console.log('generated:', code);
-    const evald = eval(code);
-    console.log('evaled:', evald);
-    //console.log('parsed', parseLambdaList(evald));
-  }
-})()
+let replInputStream, replReader;
+
+const startRepl = async () => {
+  replInputStream = new BufferedStream(),
+  replReader = new Reader(replInputStream);
+  try {
+    for await(const obj of replReader) {
+      const node = analyze(emptyEnv, null, obj);
+      const sb = new StringBuffer();
+      emitNode(sb.append.bind(sb), node);
+      const code = sb.toString();
+      const result = eval(code);
+      console.log(result);
+    }
+  } catch (e) {
+    console.error(e);
+    startRepl();
+  }
+};
+
+const replWrite = str => replInputStream.writeEach(str);
+
+startRepl();
+
+//var buf = new BufferedStream(),
+//    rdr = new Reader(buf);
+//
+//(async function() {
+//  for await(const obj of rdr) {
+//    console.log('read:', obj);
+//    const node = analyze(emptyEnv, null, obj);
+//    console.log('analyzed:', node);
+//    const sb = new StringBuffer();
+//    emitNode(sb.append.bind(sb), node);
+//    const code = sb.toString();
+//    console.log('generated:', code);
+//    const evald = eval(code);
+//    console.log('evaled:', evald);
+//    //console.log('parsed', parseLambdaList(evald));
+//  }
+//})()
 
 // buf.writeEach(String.raw`(\. (js |window|) (|alert| (to-js "hello, world!")))`)
 // buf.writeEach('(jacl::%call (jacl::%dot js::|window| |alert|) "hi")')
diff --git a/repl-client/.gitignore b/repl-client/.gitignore
deleted file mode 100644
index ee44a96..0000000
--- a/repl-client/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-.idea
-target
diff --git a/repl-client/Cargo.lock b/repl-client/Cargo.lock
deleted file mode 100644
index b19b5af..0000000
--- a/repl-client/Cargo.lock
+++ /dev/null
@@ -1,938 +0,0 @@
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diff --git a/repl-client/Cargo.toml b/repl-client/Cargo.toml
deleted file mode 100644
index 7dc6a7f..0000000
--- a/repl-client/Cargo.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-[package]
-name = "repl-client"
-version = "0.1.0"
-authors = ["Alan Dipert <alan@dipert.org>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-failure = "0.1"
-headless_chrome = "0.9.0"
diff --git a/repl-client/jacl-client.R b/repl-client/jacl-client.R
new file mode 100755
index 0000000..72f2a69
--- /dev/null
+++ b/repl-client/jacl-client.R
@@ -0,0 +1,35 @@
+#!/usr/bin/env Rscript
+
+library(chromote)
+library(jsonlite)
+
+muffle <- function(expr) {
+  if (.Platform$OS.type == "unix") {
+    sink("/dev/null")
+  } else {
+    sink("NUL")
+  }
+  force(expr)
+  sink()
+}
+
+muffle({
+  b <- ChromoteSession$new()
+  b$Page$navigate("file:///home/alan/github/alandipert/jacl/index.html")
+  b$Console$messageAdded(function (msg) { 
+    cat(msg$message$text)
+    cat('\n> ')
+  })
+  b$Console$enable()
+})
+
+cat('> ')
+f <- file("stdin")
+open(f, blocking = TRUE)
+while(isOpen(f)) {
+  ch <- readChar(f, 1)
+  json_str <- toJSON(ch, auto_unbox = TRUE)
+  code <- paste0('replWrite(', json_str, ')')
+  b$Runtime$evaluate(code)
+}
+
diff --git a/repl-client/src/main.rs b/repl-client/src/main.rs
deleted file mode 100644
index 88c3370..0000000
--- a/repl-client/src/main.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-use std::env;
-use failure::Fallible;
-use headless_chrome::Browser;
-
-fn connect(ws_url: String) -> Fallible<()> {
-    let browser = Browser::connect(ws_url.to_string())?;
-    let tab = browser.wait_for_initial_tab()?;
-    tab.evaluate("alert(123)", false);
-    Ok(())
-}
-
-fn main() {
-    let args: Vec<String> = env::args().collect();
-    if args.len() < 2 { panic!("WS URL is a required argument"); }
-    let ws_url = &args[1];
-    connect(ws_url.to_string());
-}