Add editor/ crate

Cargo.lock

@@ -1065,6 +1065,7 @@ dependencies = [
  "roc_can",
  "roc_collections",
  "roc_constrain",
+ "roc_editor",
  "roc_gen",
  "roc_load",
  "roc_module",
@@ -1152,6 +1153,40 @@ dependencies = [
  "roc_uniq",
 ]
 
+[[package]]
+name = "roc_editor"
+version = "0.1.0"
+dependencies = [
+ "bumpalo",
+ "im",
+ "im-rc",
+ "indoc",
+ "inkwell",
+ "inlinable_string",
+ "maplit",
+ "pretty_assertions",
+ "quickcheck",
+ "quickcheck_macros",
+ "roc_builtins",
+ "roc_can",
+ "roc_collections",
+ "roc_constrain",
+ "roc_gen",
+ "roc_load",
+ "roc_module",
+ "roc_mono",
+ "roc_parse",
+ "roc_problem",
+ "roc_region",
+ "roc_reporting",
+ "roc_solve",
+ "roc_types",
+ "roc_unify",
+ "roc_uniq",
+ "target-lexicon",
+ "tokio",
+]
+
 [[package]]
 name = "roc_fmt"
 version = "0.1.0"

Cargo.toml

@@ -22,6 +22,7 @@ members = [
     "vendor/ena",
     "vendor/pathfinding",
     "vendor/pretty",
+    "editor",
     "cli"
 ]
 

editor/Cargo.toml

@@ -0,0 +1,57 @@
+[package]
+name = "roc_editor"
+version = "0.1.0"
+authors = ["Richard Feldman <oss@rtfeldman.com>"]
+edition = "2018"
+description = "An editor for Roc"
+license = "Apache-2.0"
+
+[dependencies]
+roc_collections = { path = "../compiler/collections" }
+roc_can = { path = "../compiler/can" }
+roc_parse = { path = "../compiler/parse" }
+roc_region = { path = "../compiler/region" }
+roc_module = { path = "../compiler/module" }
+roc_problem = { path = "../compiler/problem" }
+roc_types = { path = "../compiler/types" }
+roc_builtins = { path = "../compiler/builtins" }
+roc_constrain = { path = "../compiler/constrain" }
+roc_uniq = { path = "../compiler/uniq" }
+roc_unify = { path = "../compiler/unify" }
+roc_solve = { path = "../compiler/solve" }
+roc_mono = { path = "../compiler/mono" }
+roc_load = { path = "../compiler/load" }
+roc_gen = { path = "../compiler/gen" }
+roc_reporting = { path = "../compiler/reporting" }
+ # TODO switch to clap 3.0.0 once it's out. Tried adding clap = "~3.0.0-beta.1" and cargo wouldn't accept it
+im    = "14" # im and im-rc should always have the same version!
+im-rc = "14" # im and im-rc should always have the same version!
+bumpalo = { version = "3.2", features = ["collections"] }
+inlinable_string = "0.1.0"
+tokio = { version = "0.2", features = ["blocking", "fs", "sync", "rt-threaded", "process", "io-driver"] }
+# NOTE: rtfeldman/inkwell is a fork of TheDan64/inkwell which does not change anything.
+#
+# The reason for this fork is that the way Inkwell is designed, you have to use
+# a particular branch (e.g. "llvm8-0") in Cargo.toml. That would be fine, except that
+# breaking changes get pushed directly to that branch, which breaks our build
+# without warning.
+#
+# We tried referencing a specific rev on TheDan64/inkwell directly (instead of branch),
+# but although that worked locally, it did not work on GitHub Actions. (After a few
+# hours of investigation, gave up trying to figure out why.) So this is the workaround:
+# having an immutable tag on the rtfeldman/inkwell fork which points to
+# a particular "release" of Inkwell.
+#
+# When we want to update Inkwell, we can sync up rtfeldman/inkwell to the latest
+# commit of TheDan64/inkwell, push a new tag which points to the latest commit,
+# change the tag value in this Cargo.toml to point to that tag, and `cargo update`.
+# This way, GitHub Actions works and nobody's builds get broken.
+inkwell = { git = "https://github.com/rtfeldman/inkwell", tag = "llvm10-0.release1" }
+target-lexicon = "0.10"
+
+[dev-dependencies]
+pretty_assertions = "0.5.1"
+maplit = "1.0.1"
+indoc = "0.3.3"
+quickcheck = "0.8"
+quickcheck_macros = "0.8"

editor/src/lib.rs

@@ -0,0 +1,8 @@
+use std::io;
+
+/// The editor is actually launched from the CLI if you pass it zero arguments.
+pub fn launch() -> io::Result<()> {
+    println!("TODO launch the editor.");
+
+    Ok(())
+}