1 files changed, 56 insertions, 0 deletions
diff --git a/script-beta/src/core/hover/init.lua b/script-beta/src/core/hover/init.lua
new file mode 100644
index 00000000..b99c14b2
--- /dev/null
+++ b/script-beta/src/core/hover/init.lua
@@ -0,0 +1,56 @@
+local files     = require 'files'
+local guide     = require 'parser.guide'
+local vm        = require 'vm'
+local getLabel  = require 'core.hover.label'
+
+local function getHoverAsFunction(source)
+    local values = vm.getValue(source)
+    local labels = {}
+    for _, value in ipairs(values) do
+        if value.type == 'function' then
+            labels[#labels+1] = getLabel(value.source)
+        end
+    end
+
+    local label = table.concat(labels, '\n')
+    return {
+        label  = label,
+        source = source,
+    }
+end
+
+local function getHoverAsValue(source)
+    local label = getLabel(source)
+    return {
+        label  = label,
+        source = source,
+    }
+end
+
+local function getHover(source)
+    local isFunction = vm.hasType(source, 'function')
+    if isFunction then
+        return getHoverAsFunction(source)
+    else
+        return getHoverAsValue(source)
+    end
+end
+
+return function (uri, offset)
+    local ast = files.getAst(uri)
+    if not ast then
+        return nil
+    end
+    local hover = guide.eachSourceContain(ast.ast, offset, function (source)
+        if source.type == 'local'
+        or source.type == 'setlocal'
+        or source.type == 'getlocal'
+        or source.type == 'setglobal'
+        or source.type == 'getglobal'
+        or source.type == 'field'
+        or source.type == 'method' then
+            return getHover(source)
+        end
+    end)
+    return hover
+end