Update plugins wiki page (#23)

#22

Author: carsakiller

src/content/wiki/plugins.mdx

@@ -1,16 +1,18 @@
 ---
 title: Plugins
 description: Add support for a custom syntax that can export standard Lua.
-incomplete: true
 ---
 
-import Remark from "~/components/common/Remark.astro";
-import Icon from "~/components/common/Icon.astro";
+import Accordion from "~/components/common/Accordion.astro";
 
 <video autoplay controls loop muted>
   <source src="/videos/wiki/plugin-diff.webm" type="video/webm" />
   <source src="/videos/wiki/plugin-diff.mp4" type="video/mp4" />
 </video>
+<div align="center">*[View code](#demo-example)*</div>
+
+## Introduction
+Plugins allow you to create a custom syntax that will then be output to a separate file. They cannot be used to report custom [diagnostics](/wiki/diagnostics).
 
 ## Template
 
@@ -43,9 +45,8 @@ This function provides the uri and text of the file that has been edited and exp
 function OnSetText(uri, text) end
 ```
 
-## Example
-
-The example [above](#plugins) uses the below code:
+<Accordion>
+<span slot="summary" id="demo-example">Example</span>
 
 ```Lua
 function OnSetText(uri, text)
@@ -75,3 +76,58 @@ function OnSetText(uri, text)
     return diffs
 end
 ```
+
+</Accordion>
+
+### OnTransformAst
+This function provides the ability to modify `ast`.
+
+After the token is generated and before the comments are compiled, so it is possible to modify ast directly and ensure that changes to the comments take effect as well.
+
+You can return new one `ast` or modify the origin `ast`.
+
+```Lua
+---@param  uri  string # The uri of file
+---@param  ast  parser.object # The file ast
+---@return parser.object? ast
+function OnTransformAst(uri, ast) end
+```
+
+### VM.OnCompileFunctionParam
+This function modifies the behavior of a function when compiling (presumably) the type of its arguments.
+
+`next` is the compiler's default behavior for functions. `func` is the function to be compiled, `param` is the parameter.
+If all functions return `false`, the parameter is defined as `any`.
+
+```Lua
+---@param next  fun(func:parser.object, param:parser.object) # Default behavior
+---@param func  parser.object                                # The function
+---@param param parser.object                                # The param
+---@return boolean? ready                                    # Already know the type.
+function VM.OnCompileFunctionParam(next, func, param) end
+```
+
+<Accordion>
+<span slot="summary">Example</span>
+
+```Lua
+local nodeHelper = reuqire 'nodeHelper'
+-- Create pattern that already matches code in the form of `*.components.`
+local pattern = nodeHelper.createFieldPattern("*.components")
+
+function VM.OnCompileFunctionParam (next, func, param)
+    -- Call the default
+    if next(func, param) then
+        return true -- If ready known the type, return true. Also you can continue
+    end
+    -- Try match pattern
+    if nodeHelper.matchPattern(source, pattern) then
+        -- Add a TestClass type to the parameters that match the pattern
+        local type = vm.declareGlobal('type', 'TestClass', TESTURI)
+        vm.setNode(source, vm.createNode(type, source))
+        return true
+    end
+end
+```
+
+</Accordion>