1 files changed, 81 insertions, 0 deletions
diff --git a/script-beta/vm/vm.lua b/script-beta/vm/vm.lua
new file mode 100644
index 00000000..23a691df
--- /dev/null
+++ b/script-beta/vm/vm.lua
@@ -0,0 +1,81 @@
+local guide     = require 'parser.guide'
+local util      = require 'utility'
+
+local setmetatable = setmetatable
+local assert       = assert
+local require      = require
+local type         = type
+
+_ENV = nil
+
+local specials = {
+    ['_G']           = true,
+    ['rawset']       = true,
+    ['rawget']       = true,
+    ['setmetatable'] = true,
+    ['require']      = true,
+    ['dofile']       = true,
+    ['loadfile']     = true,
+}
+
+---@class vm
+local m = {}
+
+function m.lock(tp, source)
+    if m.locked[tp][source] then
+        return nil
+    end
+    m.locked[tp][source] = true
+    return function ()
+        m.locked[tp][source] = nil
+    end
+end
+
+--- 获取link的uri
+function m.getLinkUris(call)
+    local workspace = require 'workspace'
+    local func = call.node
+    local name = func.special
+    if name == 'require' then
+        local args = call.args
+        if not args[1] then
+            return nil
+        end
+        local literal = guide.getLiteral(args[1])
+        if type(literal) ~= 'string' then
+            return nil
+        end
+        return workspace.findUrisByRequirePath(literal, true)
+    end
+end
+
+m.cacheTracker = setmetatable({}, { __mode = 'kv' })
+
+--- 刷新缓存
+function m.refreshCache()
+    if m.cache then
+        m.cache.dead = true
+    end
+    m.cache = {
+        eachRef     = {},
+        eachField   = {},
+        getGlobals  = {},
+        getLinks    = {},
+        getGlobal   = {},
+        specialName = {},
+        getLibrary  = {},
+        getValue    = {},
+        specials    = nil,
+    }
+    m.locked = {
+        eachRef    = {},
+        eachField  = {},
+        getGlobals = {},
+        getLinks   = {},
+        getLibrary = {},
+        getValue   = {},
+    }
+    m.cacheTracker[m.cache] = true
+end
+
+return m