Update to Nim-2.0.0

nix_actor.nimble

@@ -1,4 +1,4 @@
-version = "20230730"
+version = "20230824"
 author = "Emery Hemingway"
 description = "Syndicated Nix Actor"
 license = "Unlicense"

shell.nix

@@ -1,4 +1,4 @@
 let
-  flake = builtins.getFlake "syndicate";
+  flake = builtins.getFlake "/home/emery/src/syndicate-flake";
   pkgs = import <nixpkgs> { overlays = [ flake.overlays.default ]; };
-in pkgs.nix_actor
+in pkgs.nim2Packages.nix_actor

src/nix_actor.nim

@@ -143,23 +143,21 @@ type
   DaemonSideArgs {.preservesDictionary.} = object
     `daemon-socket`: string
 
-main.initNix()
+proc runNixActor(nixState: EvalState) =
-libexpr.initGC()
+  let erisStore = newMemoryStore()
-
+  runActor("nix_actor") do (root: Cap; turn: var Turn):
-runActor("main") do (root: Cap; turn: var Turn):
-  let
-    erisStore = newMemoryStore()
-    nixStore = openStore()
-    nixState = newEvalState(nixStore)
     connectStdio(root, turn)
 
-  during(turn, root, ?CapArgs) do (ds: Cap):
+    let pat = ?CapArgs
+    during(turn, root, pat) do (ds: Cap):
+
       discard publish(turn, ds,
         initRecord("nixVersion", toPreserve($nixVersion.c_str)))
 
       discard bootNixFacet(turn, ds)
 
-    during(turn, ds, ?Observe(pattern: !Eval) ?? {0: grabLit(), 1: grabDict()}) do (e: string, o: Assertion):
+      let pat = ?Observe(pattern: !Eval) ?? {0: grabLit(), 1: grabDict()}
+      during(turn, ds, pat) do (e: string, o: Assertion):
         var ass = Eval(expr: e)
         doAssert fromPreserve(ass.options, unpackLiterals(o))
           # unused options
@@ -176,3 +174,11 @@ runActor("main") do (root: Cap; turn: var Turn):
 
       during(turn, root, ?DaemonSideArgs) do (socketPath: string):
         bootDaemonSide(turn, ds, erisStore, socketPath)
+
+proc main =
+  initNix()
+  initGC()
+  let nixStore = openStore()
+  runNixActor(newEvalState(nixStore))
+
+main()

src/nix_actor/libnix/libexpr.nim

@@ -83,11 +83,11 @@ type
   ExprObj {.importcpp: "nix::Expr", header: "nixexpr.hh".} = object
     discard
   Expr* = ptr ExprObj
-  EvalState* {.importcpp: "nix::ref<nix::EvalState>", header: "eval.hh".} = object
+  EvalState* {.importcpp: "std::shared_ptr<nix::EvalState>", header: "eval.hh".} = object
     discard
 
 proc newEvalState*(store: Store): EvalState {.
-  importcpp: "nix::newEvalState(@)", header: "seepuspus.hh".}
+  importcpp: "nix::newEvalState(@)", header: "seepuspus.hh", constructor.}
 
 proc parseExprFromString*(state: EvalState; s, basePath: cstring): Expr {.
   importcpp: "#->parseExprFromString(@)".}

src/nix_actor/libnix/seepuspus.hh

@@ -3,7 +3,7 @@
 
 namespace nix {
 
-  ref<EvalState> newEvalState(ref<Store> store)
+  std::shared_ptr<nix::EvalState> newEvalState(ref<Store> store)
   {
     auto searchPath = Strings();
     auto evalState =
@@ -15,7 +15,7 @@ namespace nix {
           searchPath, store, store)
       #endif
         ;
-    return ref<EvalState>(evalState);
+    return evalState;
   }
 
 }