src/awesomewm.d.tl/entity/Module_Doc.tl

@@ -9,6 +9,7 @@ local record Module_Doc
    constructors: List<Function_Info.Function_Info>
    methods: List<Function_Info.Function_Info>
    static_functions: List<Function_Info.Function_Info>
+   signals: List<string>
 end
 
 local __Module_Doc: metatable<Module_Doc> = {

src/awesomewm.d.tl/generator/snippets.tl

@@ -1,17 +1,14 @@
 local Function_Info = require "entity.Function_Info"
 local List = require "pl.List"
-local utils = require "utils"
+local stringx = require "pl.stringx"
 local template = require "pl.template"
+local utils = require "utils"
 
 local snippets = {}
 
 function snippets.indent(str: string, level: number): string
    level = level or 1
-   local ret = ""
-   for line in str:gmatch("[^\n]+") do
-      ret = ret .. string.rep(" ", level * 3) .. line .. "\n"
-   end
-   return ret
+   return stringx.rstrip(stringx.indent(str, level, string.rep(" ", 3)))
 end
 
 function snippets.render_typed_variable(name: string, types: List<string>): string
@@ -47,4 +44,22 @@ function snippets.render_record_functions(items: List<Function_Info.Function_Inf
    end):concat("\n")
 end
 
+function snippets.render_enum(name: string, values: List<string>): string
+   local tmpl = [[
+enum $(name)
+$(indent(body))
+end
+]]
+
+   local tmpl_args = {
+      name = name,
+      body = values:map(function(value: string): string
+         return string.format('"%s"', value)
+      end):concat("\n"),
+      indent = snippets.indent,
+   }
+
+   return utils.do_or_fail(template.substitute, tmpl, tmpl_args)
+end
+
 return snippets

src/awesomewm.d.tl/generator/teal_type_definitions.tl

@@ -8,15 +8,11 @@ local snippets = require "generator.snippets"
 local tmpl = [[
 -- Auto generated file (Do not manually edit this file!)
 
-# if module.signals then
-local enum signals
-#  for _, signal in ipairs(module.signals) do
-   "$(signal.name)"
-#  end
-end
+local record $(mod_name)
+# if #module.signals then
+$(snippets.indent(snippets.render_enum("Signal", module.signals)))
 
 # end -- /signals
-local record $(mod_name)
 # if #module.methods then
    -- Object methods
 $(snippets.indent(snippets.render_record_functions(module.methods)))

src/awesomewm.d.tl/scraper/module_doc.tl

@@ -8,6 +8,10 @@ local utils = require "utils"
 
 local log = logger.log("scraper")
 
+local function extract_node_text(node: scan.HTMLNode): string
+   return utils.sanitize_string(node:inner_text())
+end
+
 local function extract_function_name(function_name_node: scan.HTMLNode): string
    return function_name_node and ((function_name_node.attr.name as string):gsub(".*:", ""))
 end
@@ -20,9 +24,7 @@ local function extract_function_return_types(function_return_types_node: scan.HT
    local selector = "span.types .type"
    local html = function_return_types_node:outer_html()
 
-   return scraper_utils.scrape(html, selector, function(node: scan.HTMLNode): string
-      return utils.sanitize_string(node:inner_text())
-   end)
+   return scraper_utils.scrape(html, selector, extract_node_text)
 end
 
 local function extract_section_functions(dl: string): { Function_Info.Function_Info }
@@ -50,6 +52,12 @@ local function extract_section_functions(dl: string): { Function_Info.Function_I
    )
 end
 
+local function extract_section_signal(dl: string): { string }
+   local selector = "dt strong"
+
+   return scraper_utils.scrape(dl, selector, extract_node_text)
+end
+
 local module = {}
 
 function module.get_doc_from_page(html: string): Module_Doc.Module_Doc
@@ -80,7 +88,7 @@ function module.get_doc_from_page(html: string): Module_Doc.Module_Doc
       elseif section_name == "Object methods" then
          module_doc.methods = List(extract_section_functions(dl_html))
       elseif section_name == "Signals" then
-         log:warn("Not implemented: Signals")
+         module_doc.signals = List(extract_section_signal(dl_html))
       else
          error("Unknown section name: " .. section_name)
       end

types/pl.d.tl

@@ -832,6 +832,9 @@ local record pl
         rpartition: function(string, string): string, string, string
         at: function(string, number): string
 
+        indent: function(string, number, string): string
+        dedent: function(string): string
+
         lines: function(string): function(): string
 
         title: function(string): string