update

1 files changed, 42 insertions, 0 deletions

diff --git a/script/vm/value.lua b/script/vm/value.lua
new file mode 100644
index 00000000..f2708de1
--- /dev/null
+++ b/script/vm/value.lua
@@ -0,0 +1,42 @@
+local nodeMgr = require 'vm.node'
+
+---@class vm.value-manager
+local m = {}
+
+---@param source parser.object
+---@return boolean|nil
+function m.test(source)
+    local compiler = require 'vm.compiler'
+    local node = compiler.compileNode(source)
+    local hasTrue, hasFalse
+    for n in nodeMgr.eachNode(node) do
+        if n.type == 'boolean' then
+            if n[1] == true then
+                hasTrue = true
+            end
+            if n[1] == false then
+                hasTrue = false
+            end
+        end
+        if n.type == 'nil' then
+            hasFalse = true
+        end
+        if n.type == 'string'
+        or n.type == 'number'
+        or n.type == 'integer'
+        or n.type == 'table'
+        or n.type == 'function' then
+            hasTrue = true
+        end
+    end
+    if hasTrue == hasFalse then
+        return nil
+    end
+    if hasTrue then
+        return true
+    else
+        return false
+    end
+end
+
+return m