4 files changed, 32 insertions, 14 deletions
diff --git a/core/stream/base.moon b/core/stream/base.moon
index ee4ee17..cdccdc2 100644
--- a/core/stream/base.moon
+++ b/core/stream/base.moon
@@ -53,17 +53,6 @@ class Stream
   --
   -- @tfield ?table meta
 
-  __tostring: =>
-    value = if @meta.name
-      @meta.name
-    else if 'table' == (type @value) and rawget @value, '__base'
-      @value.__name
-    else
-      tostring @value
-    "<#{@@__name} #{@type}: #{value}>"
-
-  __inherited: (cls) => cls.__base.__tostring = @__tostring
-
 --- static functions
 -- @section static
 
diff --git a/core/stream/event.moon b/core/stream/event.moon
index 5dbf846..f7b49c4 100644
--- a/core/stream/event.moon
+++ b/core/stream/event.moon
@@ -26,7 +26,7 @@ class EventStream extends Stream
       @events = {}
 
     @updated = registry.Registry.active!.tick
-    table.insert @events, {}
+    table.insert @events, event
 
   --- get the sequence of current events (if any).
   --
@@ -45,11 +45,19 @@ class EventStream extends Stream
   -- Used to wrap insulate eval-cycles from each other.
   --
   -- @treturn EventStream
-  fork: => EventStream @type
+  fork: => @@ @type
 
   --- alias for `unwrap`.
   __call: (...) => @unwrap ...
 
+  __tostring: =>
+    "<#{@@__name} #{@type}>"
+
+  --- Stream metatype.
+  --
+  -- @tfield string metatype
+  metatype: 'event'
+
   --- the type name of the stream.
   --
   -- the following builtin typenames are used:
diff --git a/core/stream/io.moon b/core/stream/io.moon
index fcaeb9f..e3e59a2 100644
--- a/core/stream/io.moon
+++ b/core/stream/io.moon
@@ -24,6 +24,13 @@ class IOStream extends EventStream
   -- @tparam string type the typename of this stream.
   new: (type) => super type
 
+  --- create a mutable copy of this stream.
+  --
+  -- Used to wrap insulate eval-cycles from each other.
+  --
+  -- @treturn IOStream
+  fork: => @
+
   --- poll for changes.
   --
   -- Called every frame by the main event loop to update internal state.
@@ -32,7 +39,7 @@ class IOStream extends EventStream
   --- check whether this adapter requires processing.
   --
   -- Must return a boolean indicating whether `Op`s that refer to this instance
-  -- via `Input.io` should be notified (via `Op:tick`). May be called multiple
+  -- via `Input.hot` should be notified (via `Op:tick`). May be called multiple
   -- times. May be called before `tick` on the first frame after construction.
   --
   -- If this is not overrided, the `EventStream` interface can be used, see
diff --git a/core/stream/value.moon b/core/stream/value.moon
index 0220f06..ce3ffc7 100644
--- a/core/stream/value.moon
+++ b/core/stream/value.moon
@@ -57,6 +57,20 @@ class ValueStream extends Stream
   -- Compares two `ValueStream`s by comparing their types and their Lua values.
   __eq: (other) => other.type == @type and other.value == @value
 
+  __tostring: =>
+    value = if @meta.name
+      @meta.name
+    else if 'table' == (type @value) and rawget @value, '__base'
+      @value.__name
+    else
+      tostring @value
+    "<#{@@__name} #{@type}: #{value}>"
+
+  --- Stream metatype.
+  --
+  -- @tfield string metatype
+  metatype: 'value'
+
   --- the type name of this stream.
   --
   -- the following builtin typenames are used: