1 files changed, 2 insertions, 57 deletions
diff --git a/core/control_flow.nom b/core/control_flow.nom
index e760b00..15c1ca1 100644
--- a/core/control_flow.nom
+++ b/core/control_flow.nom
@@ -359,51 +359,6 @@ immediately
                 end --when % = ?
         return %code
 
-# Try/except
-immediately
-    compile [..]
-        try %action and if it succeeds %success or if it barfs %msg %fallback
-        try %action and if it barfs %msg %fallback or if it succeeds %success
-    ..to
-        Lua ".."
-            do
-                local fell_through = false
-                local err, erred = nil, false
-                local ok, ret = xpcall(function()
-                    \(%action as lua statements)
-                    fell_through = true
-                end, function(\(%msg as lua expr))
-                    local ok, ret = pcall(function()
-                        \(%fallback as lua statements)
-                    end)
-                    if not ok then err, erred = ret, true end
-                end)
-                if ok then
-                    \(%success as lua statements)
-                    if not fell_through then
-                        return ret
-                    end
-                elseif erred then
-                    error(err, 0)
-                end
-            end
-immediately
-    parse [..]
-        try %action and if it succeeds %success or if it barfs %fallback
-        try %action and if it barfs %fallback or if it succeeds %success
-    ..as: try %action and if it succeeds %success or if it barfs (=lua "") %fallback
-immediately
-    parse [try %action] as
-        try %action and if it succeeds: do nothing
-        ..or if it barfs: do nothing
-    parse [try %action and if it barfs %fallback] as
-        try %action and if it succeeds: do nothing
-        ..or if it barfs %fallback
-    parse [try %action and if it barfs %msg %fallback] as
-        try %action and if it succeeds: do nothing
-        ..or if it barfs %msg %fallback
-    parse [try %action and if it succeeds %success] as
-        try %action and if it succeeds %success or if it barfs: do nothing
 
 # Do/finally
 immediately
@@ -433,17 +388,7 @@ immediately
         declare locals in %body
         return
             Lua value ".."
-                ((function()
+                (function()
                     \%body
-                end)())
+                end)()
 
-# Coroutines:
-immediately
-    compile [values %body, coroutine %body, generator %body] to
-        Lua value ".."
-            (function()
-                \(%body as lua statements)
-            end)
-    compile [->] to: Lua "coroutine.yield(true);"
-    compile [-> %] to: Lua "coroutine.yield(true, \(% as lua expr));"
-    compile [-> %k = %v] to: Lua "coroutine.yield(\(%k as lua expr), \(%v as lua expr));"