3 files changed, 72 insertions, 63 deletions
diff --git a/script/vm/literal-node.lua b/script/vm/literal-node.lua
new file mode 100644
index 00000000..9c1f70a8
--- /dev/null
+++ b/script/vm/literal-node.lua
@@ -0,0 +1,57 @@
+local util       = require 'utility'
+local guide      = require 'parser.guide'
+
+---@class vm.literal-node
+local m = {}
+---@type table<uri, parser.object[]>
+m.literals = util.multiTable(2)
+---@type table<parser.object, table<parser.object, boolean>>
+m.literalSubs = util.multiTable(2, function ()
+    return setmetatable({}, util.MODE_K)
+end)
+---@type table<parser.object, boolean>
+m.allLiterals = {}
+
+---@param source parser.object
+function m.declareLiteral(source)
+    if m.allLiterals[source] then
+        return
+    end
+    m.allLiterals[source] = true
+    local uri = guide.getUri(source)
+    local literals = m.literals[uri]
+    literals[#literals+1] = source
+end
+
+---@param source parser.object
+---@param node   vm.node
+function m.subscribeLiteral(source, node)
+    if not node then
+        return
+    end
+    if node.type == 'union'
+    or node.type == 'cross' then
+        node:subscribeLiteral(source)
+        return
+    end
+    if not m.allLiterals[source] then
+        return
+    end
+    m.literalSubs[node][source] = true
+end
+
+---@param uri uri
+function m.dropUri(uri)
+    local literals = m.literals[uri]
+    m.literals[uri] = nil
+    for _, literal in ipairs(literals) do
+        m.allLiterals[literal] = nil
+        local literalSubs = m.literalSubs[literal]
+        m.literalSubs[literal] = nil
+        for source in pairs(literalSubs) do
+            source._node = nil
+        end
+    end
+end
+
+return m
diff --git a/script/vm/node/compiler.lua b/script/vm/node/compiler.lua
index dfe4bc0c..e8595ebf 100644
--- a/script/vm/node/compiler.lua
+++ b/script/vm/node/compiler.lua
@@ -1,8 +1,8 @@
-local guide    = require 'parser.guide'
-local util     = require 'utility'
-local state    = require 'vm.state'
-local union    = require 'vm.node.union'
-local localID  = require 'vm.local-id'
+local guide       = require 'parser.guide'
+local util        = require 'utility'
+local union       = require 'vm.node.union'
+local localID     = require 'vm.local-id'
+local literalNode = require 'vm.literal-node'
 
 ---@class parser.object
 ---@field _compiledNodes  boolean
@@ -119,7 +119,7 @@ local compilerMap = util.switch()
     : case 'string'
     : case 'function'
     : call(function (source)
-        m.setNode(source, state.declareLiteral(source))
+        m.setNode(source, literalNode.declareLiteral(source))
     end)
     : case 'local'
     : call(function (source)
@@ -183,7 +183,10 @@ function m.compileNode(source)
     if compiler then
         compiler(source)
     end
-    state.subscribeLiteral(source, source._node)
+    literalNode.subscribeLiteral(source, source._node)
+    if source._globalNode then
+        m.setNode(source, source._globalNode)
+    end
     return source._node
 end
 
diff --git a/script/vm/state.lua b/script/vm/state.lua
index b0689384..901cf081 100644
--- a/script/vm/state.lua
+++ b/script/vm/state.lua
@@ -1,61 +1,10 @@
-local util       = require 'utility'
-local files      = require 'files'
-local globalNode = require 'vm.global-node'
-local guide      = require 'parser.guide'
+
+local files       = require 'files'
+local globalNode  = require 'vm.global-node'
+local literalNode = require 'vm.literal-node'
 
 ---@class vm.state
 local m = {}
----@type table<uri, parser.object[]>
-m.literals = util.multiTable(2)
----@type table<parser.object, table<parser.object, boolean>>
-m.literalSubs = util.multiTable(2, function ()
-    return setmetatable({}, util.MODE_K)
-end)
----@type table<parser.object, boolean>
-m.allLiterals = {}
-
----@param source parser.object
-function m.declareLiteral(source)
-    if m.allLiterals[source] then
-        return
-    end
-    m.allLiterals[source] = true
-    local uri = guide.getUri(source)
-    local literals = m.literals[uri]
-    literals[#literals+1] = source
-end
-
----@param source parser.object
----@param node   vm.node
-function m.subscribeLiteral(source, node)
-    if not node then
-        return
-    end
-    if node.type == 'union'
-    or node.type == 'cross' then
-        node:subscribeLiteral(source)
-        return
-    end
-    if not m.allLiterals[source] then
-        return
-    end
-    m.literalSubs[node][source] = true
-end
-
----@param uri uri
-function m.dropUri(uri)
-    local literals = m.literals[uri]
-    m.literals[uri] = nil
-    for _, literal in ipairs(literals) do
-        m.allLiterals[literal] = nil
-        local literalSubs = m.literalSubs[literal]
-        m.literalSubs[literal] = nil
-        for source in pairs(literalSubs) do
-            source._node = nil
-        end
-    end
-end
-
 for uri in files.eachFile() do
     local state = files.getState(uri)
     if state then
@@ -71,8 +20,8 @@ files.watch(function (ev, uri)
         end
     end
     if ev == 'remove' then
-        m.dropUri(uri)
         globalNode.dropUri(uri)
+        literalNode.dropUri(uri)
     end
 end)