ni_nitdoc: added fast copy past utility to signatures.
[nit.git] / src / ni_nitdoc.nit
index e58f273..535614b 100644 (file)
@@ -1,7 +1,5 @@
 # This file is part of NIT ( http://www.nitlanguage.org ).
 #
-# Copyright 2008 Jean Privat <jean@pryen.org>
-#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Documentation generator for the nit language.
+# Generate API documentation in HTML format from nit source code.
 module ni_nitdoc
 
 import model_utils
-import abstract_compiler
+import modelize_property
 
+# The NitdocContext contains all the knowledge used for doc generation
 class NitdocContext
-       private var toolcontext: ToolContext
+
+       private var toolcontext = new ToolContext
        private var model: Model
-       private var modelbuilder: ModelBuilder
+       private var mbuilder: ModelBuilder
        private var mainmodule: MModule
        private var class_hierarchy: POSet[MClass]
        private var arguments: Array[String]
@@ -43,9 +45,7 @@ class NitdocContext
        private var opt_custom_overview_text: OptionString = new OptionString("Text displayed as introduction of Overview page before the modules list", "--custom-overview-text")
        private var opt_custom_footer_text: OptionString = new OptionString("Text displayed as footer of all pages", "--custom-footer-text")
 
-       init(toolcontext: ToolContext) do
-               # We need a model to collect stufs
-               self.toolcontext = toolcontext
+       init do
                self.arguments = toolcontext.option_context.rest
                toolcontext.option_context.options.clear
                toolcontext.option_context.add_option(opt_dir)
@@ -58,7 +58,6 @@ class NitdocContext
                toolcontext.option_context.add_option(opt_custom_overview_text)
                toolcontext.option_context.add_option(opt_custom_menu_items)
                toolcontext.process_options
-               process_options
 
                if arguments.length < 1 then
                        toolcontext.option_context.usage
@@ -66,11 +65,11 @@ class NitdocContext
                end
 
                model = new Model
-               modelbuilder = new ModelBuilder(model, toolcontext)
+               mbuilder = new ModelBuilder(model, toolcontext)
                # Here we load an process all modules passed on the command line
-               var mmodules = modelbuilder.parse_and_build(arguments)
-               modelbuilder.full_propdef_semantic_analysis
+               var mmodules = mbuilder.parse(arguments)
                if mmodules.is_empty then return
+               mbuilder.run_phases
 
                if mmodules.length == 1 then
                        mainmodule = mmodules.first
@@ -80,6 +79,7 @@ class NitdocContext
                        mainmodule.set_imported_mmodules(mmodules)
                end
                self.class_hierarchy = mainmodule.flatten_mclass_hierarchy
+               self.process_options
        end
 
        private fun process_options do
@@ -117,7 +117,7 @@ class NitdocContext
                source = opt_source.value
        end
 
-       fun start do
+       fun generate_nitdoc do
                # Create destination dir if it's necessary
                if not output_dir.file_exists then output_dir.mkdir
                sys.system("cp -r {share_dir.to_s}/* {output_dir.to_s}/")
@@ -130,17 +130,17 @@ class NitdocContext
                quicksearch_list
        end
 
-       fun overview do
+       private fun overview do
                var overviewpage = new NitdocOverview(self, dot_dir)
                overviewpage.save("{output_dir.to_s}/index.html")
        end
 
-       fun fullindex do
+       private fun fullindex do
                var fullindex = new NitdocFullindex(self)
                fullindex.save("{output_dir.to_s}/full-index.html")
        end
 
-       fun modules do
+       private fun modules do
                for mmodule in model.mmodules do
                        if mmodule.name == "<main>" then continue
                        var modulepage = new NitdocModule(mmodule, self, dot_dir)
@@ -148,29 +148,26 @@ class NitdocContext
                end
        end
 
-       fun classes do
-               for mclass in modelbuilder.model.mclasses do
+       private fun classes do
+               for mclass in mbuilder.model.mclasses do
                        var classpage = new NitdocClass(mclass, self, dot_dir, source)
                        classpage.save("{output_dir.to_s}/{mclass.url}")
                end
        end
 
-       # Generate QuickSearch file
-       fun quicksearch_list do
+       private fun quicksearch_list do
                var file = new OFStream.open("{output_dir.to_s}/quicksearch-list.js")
-               var content = new Buffer
-               content.append("var entries = \{ ")
-
+               file.write("var entries = \{ ")
                for mmodule in model.mmodules do
-                       content.append("\"{mmodule.name}\": [")
-                       content.append("\{txt: \"{mmodule.name}\", url:\"{mmodule.url}\" \},")
-                       content.append("],")
+                       file.write("\"{mmodule.name}\": [")
+                       file.write("\{txt: \"{mmodule.name}\", url:\"{mmodule.url}\" \},")
+                       file.write("],")
                end
                for mclass in model.mclasses do
                        if mclass.visibility < min_visibility then continue
-                       content.append("\"{mclass.name}\": [")
-                       content.append("\{txt: \"{mclass.name}\", url:\"{mclass.url}\" \},")
-                       content.append("],")
+                       file.write("\"{mclass.name}\": [")
+                       file.write("\{txt: \"{mclass.name}\", url:\"{mclass.url}\" \},")
+                       file.write("],")
                end
                var name2mprops = new HashMap[String, Set[MPropDef]]
                for mproperty in model.mproperties do
@@ -180,15 +177,13 @@ class NitdocContext
                        name2mprops[mproperty.name].add_all(mproperty.mpropdefs)
                end
                for mproperty, mpropdefs in name2mprops do
-                       content.append("\"{mproperty}\": [")
+                       file.write("\"{mproperty}\": [")
                        for mpropdef in mpropdefs do
-                               content.append("\{txt: \"{mpropdef.full_name}\", url:\"{mpropdef.url}\" \},")
+                               file.write("\{txt: \"{mpropdef.full_name}\", url:\"{mpropdef.url}\" \},")
                        end
-                       content.append("],")
+                       file.write("],")
                end
-
-               content.append(" \};")
-               file.write(content.to_s)
+               file.write(" \};")
                file.close
        end
 
@@ -205,13 +200,13 @@ abstract class NitdocPage
                self.ctx = ctx
        end
 
-       fun append(str: String) do html.append(str)
-       var html = new Buffer
-
-       fun head do
+       protected fun head do
                append("<meta charset='utf-8'/>")
                append("<script type='text/javascript' src='scripts/jquery-1.7.1.min.js'></script>")
+               append("<script type='text/javascript' src='scripts/ZeroClipboard.min.js'></script>")
                append("<script type='text/javascript' src='quicksearch-list.js'></script>")
+               append("<script type='text/javascript' src='scripts/base64.js'></script>")
+               append("<script type='text/javascript' src='scripts/github.js'></script>")
                append("<script type='text/javascript' src='scripts/js-facilities.js'></script>")
                append("<link rel='stylesheet' href='styles/main.css' type='text/css' media='screen'/>")
                var title = ""
@@ -221,71 +216,34 @@ abstract class NitdocPage
                append("<title>{self.title}{title}</title>")
        end
 
-       fun menu do
+       protected fun menu do
                if ctx.opt_custom_menu_items.value != null then
                        append(ctx.opt_custom_menu_items.value.to_s)
                end
        end
 
-       fun title: String is abstract
+       protected fun title: String is abstract
 
-       fun header do
+       protected fun header do
                append("<header>")
                append("<nav class='main'>")
                append("<ul>")
                menu
-               append("<li id='liGitHub'>")
-               append("<a class='btn' id='logGitHub'>")
-               append("<img id='imgGitHub' src='resources/icons/github-icon.png' alt='GitHub'/>")
-               append("</a>")
-               append("<div class='popover bottom'>")
-               append("<div class='arrow'>&nbsp;</div>")
-               append("<div class='githubTitle'>")
-               append("<h3>Github Sign In</h3>")
-               append("</div>")
-               append("<div>")
-               append("<label id='lbloginGit'>Username</label>")
-               append("<input id='loginGit' name='login' type='text'/>")
-               append("<label id='logginMessage'>Hello ")
-               append("<a id='githubAccount'><strong id='nickName'></strong></a>")
-               append("</label>")
-               append("</div>")
-               append("<div>")
-               append("<label id='lbpasswordGit'>Password</label>")
-               append("<input id='passwordGit' name='password' type='password'/>")
-               append("<div id='listBranches'>")
-               append("<label id='lbBranches'>Branch</label>")
-               append("<select class='dropdown' id='dropBranches' name='dropBranches' tabindex='1'></select>")
-               append("</div>")
-               append("</div>")
-               append("<div>")
-               append("<label id='lbrepositoryGit'>Repository</label>")
-               append("<input id='repositoryGit' name='repository' type='text'/>")
-               append("</div>")
-               append("<div>")
-               append("<label id='lbbranchGit'>Branch</label>")
-               append("<input id='branchGit' name='branch' type='text'/>")
-               append("</div>")
-               append("<div>")
-               append("<a id='signIn'>Sign In</a>")
-               append("</div>")
-               append("</div>")
-               append("</li>")
                append("</ul>")
                append("</nav>")
                append("</header>")
        end
 
-       fun content is abstract
+       protected fun content is abstract
 
-       fun footer do
+       protected fun footer do
                if ctx.opt_custom_footer_text.value != null then
                        append("<footer>{ctx.opt_custom_footer_text.value.to_s}</footer>")
                end
        end
 
        # Generate a clickable graphviz image using a dot content
-       fun generate_dot(dot: String, name: String, alt: String) do
+       protected fun generate_dot(dot: String, name: String, alt: String) do
                var output_dir = dot_dir
                if output_dir == null then return
                var file = new OFStream.open("{output_dir}/{name}.dot")
@@ -301,7 +259,7 @@ abstract class NitdocPage
        end
 
        # Add a (source) link for a given location
-       fun show_source(l: Location): String
+       protected fun show_source(l: Location): String
        do
                if source == null then
                        return "({l.file.filename.simplify_path})"
@@ -313,12 +271,12 @@ abstract class NitdocPage
                        source = x.join(l.line_start.to_s)
                        x = source.split_with("%L")
                        source = x.join(l.line_end.to_s)
-                       return " (<a href=\"{source.to_s}\">source</a>)"
+                       return " (<a target='_blank' title='Show source' href=\"{source.to_s}\">source</a>)"
                end
        end
 
        # Render the page as a html string
-       fun render: String do
+       protected fun render do
                append("<!DOCTYPE html>")
                append("<head>")
                head
@@ -330,15 +288,18 @@ abstract class NitdocPage
                append("</div>")
                footer
                append("</body>")
-               return html.to_s
        end
 
+       # Append a string to the page
+       fun append(s: String) do out.write(s)
+
        # Save html page in the specified file
        fun save(file: String) do
-               var out = new OFStream.open(file)
-               out.write(render)
-               out.close
+               self.out = new OFStream.open(file)
+               render
+               self.out.close
        end
+       private var out: nullable OFStream
 end
 
 # The overview page
@@ -349,7 +310,7 @@ class NitdocOverview
 
        init(ctx: NitdocContext, dot_dir: nullable String) do
                super(ctx)
-               self.mbuilder = ctx.modelbuilder
+               self.mbuilder = ctx.mbuilder
                self.dot_dir = dot_dir
                # get modules
                var mmodules = new HashSet[MModule]
@@ -363,7 +324,7 @@ class NitdocOverview
                        end
                end
                # sort modules
-               var sorter = new ComparableSorter[MModule]
+               var sorter = new MModuleNameSorter
                self.mmodules.add_all(mmodules)
                sorter.sort(self.mmodules)
        end
@@ -377,7 +338,9 @@ class NitdocOverview
        end
 
        redef fun content do
-               append("<div class='content fullpage'>")
+               var footed = ""
+               if ctx.opt_custom_footer_text.value != null then footed = "footed"
+               append("<div class='content fullpage {footed}'>")
                var title = "Overview"
                if ctx.opt_custom_title.value != null then
                        title = ctx.opt_custom_title.value.to_s
@@ -395,7 +358,9 @@ class NitdocOverview
                for mmodule in mmodules do
                        if mbuilder.mmodule2nmodule.has_key(mmodule) then
                                var amodule = mbuilder.mmodule2nmodule[mmodule]
-                               append("<li>{mmodule.link(mbuilder)}&nbsp;{amodule.short_comment}</li>")
+                               append("<li>")
+                               mmodule.html_link(self)
+                               append("&nbsp;{amodule.short_comment}</li>")
                        end
                end
                append("</ul>")
@@ -405,15 +370,26 @@ class NitdocOverview
                append("</div>")
        end
 
-       fun process_generate_dot do
+       private fun process_generate_dot do
+               # build poset with public owners
+               var poset = new POSet[MModule]
+               for mmodule in mmodules do
+                       poset.add_node(mmodule)
+                       for omodule in mmodules do
+                               if mmodule == omodule then continue
+                               if mmodule.in_importation < omodule then
+                                       poset.add_node(omodule)
+                                       poset.add_edge(mmodule, omodule)
+                               end
+                       end
+               end
+               # build graph
                var op = new Buffer
                op.append("digraph dep \{ rankdir=BT; node[shape=none,margin=0,width=0,height=0,fontsize=10]; edge[dir=none,color=gray]; ranksep=0.2; nodesep=0.1;\n")
-               for mmodule in mmodules do
+               for mmodule in poset do
                        op.append("\"{mmodule.name}\"[URL=\"{mmodule.url}\"];\n")
-                       for imported in mmodule.in_importation.direct_greaters do
-                               if imported.direct_owner == null then
-                                       op.append("\"{mmodule.name}\"->\"{imported.name}\";\n")
-                               end
+                       for omodule in poset[mmodule].direct_greaters do
+                               op.append("\"{mmodule.name}\"->\"{omodule.name}\";\n")
                        end
                end
                op.append("\}\n")
@@ -439,7 +415,9 @@ class NitdocFullindex
        end
 
        redef fun content do
-               append("<div class='content fullpage'>")
+               var footed = ""
+               if ctx.opt_custom_footer_text.value != null then footed = "footed"
+               append("<div class='content fullpage {footed}'>")
                append("<h1>Full Index</h1>")
                module_column
                classes_column
@@ -448,43 +426,44 @@ class NitdocFullindex
        end
 
        # Add to content modules column
-       fun module_column do
-               var sorter = new ComparableSorter[MModule]
-               var sorted = new Array[MModule]
-               for mmodule in ctx.modelbuilder.model.mmodule_importation_hierarchy do
-                       sorted.add(mmodule)
-               end
+       private fun module_column do
+               var sorted = ctx.mbuilder.model.mmodule_importation_hierarchy.to_a
+               var sorter = new MModuleNameSorter
                sorter.sort(sorted)
                append("<article class='modules filterable'>")
                append("<h2>Modules</h2>")
                append("<ul>")
                for mmodule in sorted do
-                       append("<li>{mmodule.link(ctx.modelbuilder)}</li>")
+                       append("<li>")
+                       mmodule.html_link(self)
+                       append("</li>")
                end
                append("</ul>")
                append("</article>")
        end
 
        # Add to content classes modules
-       fun classes_column do
-               var sorted = ctx.modelbuilder.model.mclasses
-               var sorter = new ComparableSorter[MClass]
+       private fun classes_column do
+               var sorted = ctx.mbuilder.model.mclasses
+               var sorter = new MClassNameSorter
                sorter.sort(sorted)
                append("<article class='modules filterable'>")
                append("<h2>Classes</h2>")
                append("<ul>")
                for mclass in sorted do
                        if mclass.visibility < ctx.min_visibility then continue
-                       append("<li>{mclass.link(ctx.modelbuilder)}</li>")
+                       append("<li>")
+                       mclass.html_link(self)
+                       append("</li>")
                end
                append("</ul>")
                append("</article>")
        end
 
        # Insert the properties column of fullindex page
-       fun properties_column do
-               var sorted = ctx.modelbuilder.model.mproperties
-               var sorter = new ComparableSorter[MProperty]
+       private fun properties_column do
+               var sorted = ctx.mbuilder.model.mproperties
+               var sorter = new MPropertyNameSorter
                sorter.sort(sorted)
                append("<article class='modules filterable'>")
                append("<h2>Properties</h2>")
@@ -492,7 +471,11 @@ class NitdocFullindex
                for mproperty in sorted do
                        if mproperty.visibility < ctx.min_visibility then continue
                        if mproperty isa MAttribute then continue
-                       append("<li>{mproperty.intro.link(ctx.modelbuilder)} ({mproperty.intro.mclassdef.mclass.link(ctx.modelbuilder)})</li>")
+                       append("<li>")
+                       mproperty.intro.html_link(self)
+                       append(" (")
+                       mproperty.intro.mclassdef.mclass.html_link(self)
+                       append(")</li>")
                end
                append("</ul>")
                append("</article>")
@@ -510,7 +493,7 @@ class NitdocModule
        init(mmodule: MModule, ctx: NitdocContext, dot_dir: nullable String) do
                super(ctx)
                self.mmodule = mmodule
-               self.mbuilder = ctx.modelbuilder
+               self.mbuilder = ctx.mbuilder
                self.dot_dir = dot_dir
        end
 
@@ -532,43 +515,57 @@ class NitdocModule
 
        redef fun content do
                sidebar
-               append("<div class='content'>")
+               var footed = ""
+               if ctx.opt_custom_footer_text.value != null then footed = "footed"
+               append("<div class='content {footed}'>")
                append("<h1>{mmodule.name}</h1>")
-               append("<div class='subtitle'>{mmodule.html_signature(mbuilder)}</div>")
-               append(mmodule.html_full_comment(mbuilder))
+               append("<div class='subtitle info'>")
+               mmodule.html_signature(self)
+               append("</div>")
+               mmodule.html_full_comment(self)
                process_generate_dot
                classes
                properties
                append("</div>")
        end
 
-       fun process_generate_dot do
-               var name = "dep_{mmodule.name}"
+       private fun process_generate_dot do
+               # build poset with public owners
+               var poset = new POSet[MModule]
+               for mmodule in self.mmodule.in_importation.poset do
+                       if mmodule.name == "<main>" then continue
+                       if mmodule.public_owner != null then continue
+                       if not mmodule.in_importation < self.mmodule and not self.mmodule.in_importation < mmodule and mmodule != self.mmodule then continue
+                       poset.add_node(mmodule)
+                       for omodule in mmodule.in_importation.poset do
+                               if mmodule == omodule then continue
+                               if omodule.name == "<main>" then continue
+                               if omodule.public_owner != null then continue
+                               if mmodule.in_importation < omodule then
+                                       poset.add_node(omodule)
+                                       poset.add_edge(mmodule, omodule)
+                               end
+                       end
+               end
+               # build graph
                var op = new Buffer
+               var name = "dep_{mmodule.name}"
                op.append("digraph {name} \{ rankdir=BT; node[shape=none,margin=0,width=0,height=0,fontsize=10]; edge[dir=none,color=gray]; ranksep=0.2; nodesep=0.1;\n")
-               for m in mmodule.in_importation.poset do
-                       if m.name == "<main>" then continue
-                       var public_owner = m.public_owner
-                       if public_owner == null then
-                               public_owner = m
-                               if m == mmodule then
-                                       op.append("\"{m.name}\"[shape=box,margin=0.03];\n")
-                               else
-                                       op.append("\"{m.name}\"[URL=\"{m.url}\"];\n")
-                               end
+               for mmodule in poset do
+                       if mmodule == self.mmodule then
+                               op.append("\"{mmodule.name}\"[shape=box,margin=0.03];\n")
+                       else
+                               op.append("\"{mmodule.name}\"[URL=\"{mmodule.url}\"];\n")
                        end
-                       for imported in m.in_importation.direct_greaters do
-                               if imported.name == "<main>" then continue
-                               if imported.public_owner == null then
-                                       op.append("\"{public_owner.name}\"->\"{imported.name}\";\n")
-                               end
+                       for omodule in poset[mmodule].direct_greaters do
+                               op.append("\"{mmodule.name}\"->\"{omodule.name}\";\n")
                        end
                end
                op.append("\}\n")
                generate_dot(op.to_s, name, "Dependency graph for module {mmodule.name}")
        end
 
-       fun sidebar do
+       private fun sidebar do
                append("<div class='menu'>")
                append("<nav>")
                append("<h3>Module Hierarchy</h3>")
@@ -583,6 +580,7 @@ class NitdocModule
                end
                var clients = new Array[MModule]
                for dep in mmodule.in_importation.smallers do
+                       if dep.name == "<main>" then continue
                        if dep == mmodule or dep.public_owner != null then continue
                        clients.add(dep)
                end
@@ -591,25 +589,31 @@ class NitdocModule
                        display_module_list(clients)
                end
                append("</nav>")
-               if mmodule.in_nesting.direct_greaters.length > 0 then
-                       append("<nav>")
-                       append("<h3>Nested Modules</h3>")
-                       display_module_list(mmodule.in_nesting.direct_greaters.to_a)
-                       append("</nav>")
+               if ctx.min_visibility < protected_visibility then
+                       if mmodule.in_nesting.direct_greaters.length > 0 then
+                               append("<nav>")
+                               append("<h3>Nested Modules</h3>")
+                               display_module_list(mmodule.in_nesting.direct_greaters.to_a)
+                               append("</nav>")
+                       end
                end
                append("</div>")
        end
 
        private fun display_module_list(list: Array[MModule]) do
                append("<ul>")
-               var sorter = new ComparableSorter[MModule]
+               var sorter = new MModuleNameSorter
                sorter.sort(list)
-               for m in list do append("<li>{m.link(mbuilder)}</li>")
+               for m in list do
+                       append("<li>")
+                       m.html_link(self)
+                       append("</li>")
+               end
                append("</ul>")
        end
 
        # display the class column
-       fun classes do
+       private fun classes do
                var intro_mclasses = mmodule.intro_mclasses
                var redef_mclasses = mmodule.redef_mclasses
                var all_mclasses = new HashSet[MClass]
@@ -622,7 +626,7 @@ class NitdocModule
 
                var sorted = new Array[MClass]
                sorted.add_all(all_mclasses)
-               var sorter = new ComparableSorter[MClass]
+               var sorter = new MClassNameSorter
                sorter.sort(sorted)
                append("<div class='module'>")
                append("<article class='classes filterable'>")
@@ -637,7 +641,7 @@ class NitdocModule
                                append("<li class='intro'>")
                                append("<span title='introduced in this module'>I </span>")
                        end
-                       append(c.link(mbuilder))
+                       c.html_link(self)
                        append("</li>")
                end
                append("</ul>")
@@ -646,7 +650,7 @@ class NitdocModule
        end
 
        # display the property column
-       fun properties do
+       private fun properties do
                # get properties
                var mpropdefs = new HashSet[MPropDef]
                for m in mmodule.in_nesting.greaters do
@@ -654,7 +658,7 @@ class NitdocModule
                end
                for c in mmodule.mclassdefs do mpropdefs.add_all(c.mpropdefs)
                var sorted = mpropdefs.to_a
-               var sorter = new ComparableSorter[MPropDef]
+               var sorter = new MPropDefNameSorter
                sorter.sort(sorted)
                # display properties in one column
                append("<article class='properties filterable'>")
@@ -663,7 +667,7 @@ class NitdocModule
                for mprop in sorted do
                        if mprop isa MAttributeDef then continue
                        if mprop.mproperty.visibility < ctx.min_visibility then continue
-                       append(mprop.html_list_item(mbuilder))
+                       mprop.html_list_item(self)
                end
                append("</ul>")
                append("</article>")
@@ -675,7 +679,6 @@ class NitdocClass
        super NitdocPage
 
        private var mclass: MClass
-       private var mbuilder: ModelBuilder
        private var vtypes = new HashSet[MVirtualTypeDef]
        private var consts = new HashSet[MMethodDef]
        private var meths = new HashSet[MMethodDef]
@@ -684,7 +687,6 @@ class NitdocClass
        init(mclass: MClass, ctx: NitdocContext, dot_dir: nullable String, source: nullable String) do
                super(ctx)
                self.mclass = mclass
-               self.mbuilder = ctx.modelbuilder
                self.dot_dir = dot_dir
                self.source = source
                # load properties
@@ -702,23 +704,28 @@ class NitdocClass
                        end
                end
                # get inherited properties
-               for mprop in mclass.inherited_mproperties do
-                       var mpropdef = mprop.intro
-                       if mprop.visibility < ctx.min_visibility then continue
-                       if mpropdef isa MVirtualTypeDef then vtypes.add(mpropdef)
-                       if mpropdef isa MMethodDef then
-                               if mpropdef.mproperty.is_init then
-                                       consts.add(mpropdef)
-                               else
-                                       meths.add(mpropdef)
+               for pclass in mclass.in_hierarchy(ctx.mainmodule).greaters do
+                       if pclass == mclass then continue
+                       for pclassdef in pclass.mclassdefs do
+                               for mprop in pclassdef.intro_mproperties do
+                                       var mpropdef = mprop.intro
+                                       if mprop.visibility < ctx.min_visibility then continue
+                                       if mpropdef isa MVirtualTypeDef then vtypes.add(mpropdef)
+                                       if mpropdef isa MMethodDef then
+                                               if mpropdef.mproperty.is_init then
+                                                       consts.add(mpropdef)
+                                               else
+                                                       meths.add(mpropdef)
+                                               end
+                                       end
+                                       inherited.add(mpropdef)
                                end
                        end
-                       inherited.add(mpropdef)
                end
        end
 
        redef fun title do
-               var nclass = mbuilder.mclassdef2nclassdef[mclass.intro]
+               var nclass = ctx.mbuilder.mclassdef2nclassdef[mclass.intro]
                if nclass isa AStdClassdef then
                        return "{mclass.name} class | {nclass.short_comment}"
                else
@@ -731,9 +738,13 @@ class NitdocClass
                append("<li><a href='index.html'>Overview</a></li>")
                var public_owner = mclass.public_owner
                if public_owner is null then
-                       append("<li>{mclass.intro_mmodule.link(mbuilder)}</li>")
+                       append("<li>")
+                       mclass.intro_mmodule.html_link(self)
+                       append("</li>")
                else
-                       append("<li>{public_owner.link(mbuilder)}</li>")
+                       append("<li>")
+                       public_owner.html_link(self)
+                       append("</li>")
                end
                append("<li class='current'>{mclass.name}</li>")
                append("<li><a href='full-index.html'>Full Index</a></li>")
@@ -744,13 +755,15 @@ class NitdocClass
                properties_column
                inheritance_column
                append("</div>")
-               append("<div class='content'>")
+               var footed = ""
+               if ctx.opt_custom_footer_text.value != null then footed = "footed"
+               append("<div class='content {footed}'>")
                class_doc
                append("</div>")
        end
 
-       fun properties_column do
-               var sorter = new ComparableSorter[MPropDef]
+       private fun properties_column do
+               var sorter = new MPropDefNameSorter
                append("<nav class='properties filterable'>")
                append("<h3>Properties</h3>")
                # virtual types
@@ -761,7 +774,7 @@ class NitdocClass
                        append("<h4>Virtual Types</h4>")
                        append("<ul>")
                        for mprop in vts do
-                               append(mprop.html_sidebar_item(self))
+                               mprop.html_sidebar_item(self)
                        end
                        append("</ul>")
                end
@@ -773,7 +786,8 @@ class NitdocClass
                        append("<h4>Constructors</h4>")
                        append("<ul>")
                        for mprop in cts do
-                               append(mprop.html_sidebar_item(self))
+                               if mprop.mproperty.name == "init" and mprop.mclassdef.mclass != mclass then continue
+                               mprop.html_sidebar_item(self)
                        end
                        append("</ul>")
                end
@@ -786,50 +800,55 @@ class NitdocClass
                        append("<ul>")
                        for mprop in mts do
                                if mclass.name != "Object" and mprop.mproperty.intro_mclassdef.mclass.name == "Object" and mprop.mproperty.visibility <= protected_visibility then continue
-                               append(mprop.html_sidebar_item(self))
+                               mprop.html_sidebar_item(self)
                        end
                        append("</ul>")
                end
                append("</nav>")
        end
 
-       fun inheritance_column do
+       private fun inheritance_column do
                var sorted = new Array[MClass]
-               var sorterp = new ComparableSorter[MClass]
+               var sorterp = new MClassNameSorter
                append("<nav>")
                append("<h3>Inheritance</h3>")
-               if mclass.ancestors.length > 1 then
-                       sorted = mclass.ancestors.to_a
-                       sorterp.sort(sorted)
+               var greaters = mclass.in_hierarchy(ctx.mainmodule).greaters.to_a
+               if greaters.length > 1 then
+                       ctx.mainmodule.linearize_mclasses(greaters)
                        append("<h4>Superclasses</h4>")
                        append("<ul>")
-                       for sup in sorted do
+                       for sup in greaters do
                                if sup == mclass then continue
-                               append("<li>{sup.link(mbuilder)}</li>")
+                               append("<li>")
+                               sup.html_link(self)
+                               append("</li>")
                        end
                        append("</ul>")
                end
-
-               if mclass.descendants.length <= 1 then
+               var smallers = mclass.in_hierarchy(ctx.mainmodule).smallers.to_a
+               var direct_smallers = mclass.in_hierarchy(ctx.mainmodule).direct_smallers.to_a
+               if smallers.length <= 1 then
                        append("<h4>No Known Subclasses</h4>")
-               else if mclass.descendants.length <= 100 then
-                       sorted = mclass.descendants.to_a
-                       sorterp.sort(sorted)
+               else if smallers.length <= 100 then
+                       ctx.mainmodule.linearize_mclasses(smallers)
                        append("<h4>Subclasses</h4>")
                        append("<ul>")
-                       for sub in sorted do
+                       for sub in smallers do
                                if sub == mclass then continue
-                               append("<li>{sub.link(mbuilder)}</li>")
+                               append("<li>")
+                               sub.html_link(self)
+                               append("</li>")
                        end
                        append("</ul>")
-               else if mclass.children.length <= 100 then
-                       sorted = mclass.children.to_a
-                       sorterp.sort(sorted)
+               else if direct_smallers.length <= 100 then
+                       ctx.mainmodule.linearize_mclasses(direct_smallers)
                        append("<h4>Direct Subclasses Only</h4>")
                        append("<ul>")
-                       for sub in sorted do
+                       for sub in direct_smallers do
                                if sub == mclass then continue
-                               append("<li>{sub.link(mbuilder)}</li>")
+                               append("<li>")
+                               sub.html_link(self)
+                               append("</li>")
                        end
                        append("</ul>")
                else
@@ -838,17 +857,15 @@ class NitdocClass
                append("</nav>")
        end
 
-       fun class_doc do
+       private fun class_doc do
                # title
-               append("<h1>{mclass.html_signature}</h1>")
-               append("<div class='subtitle info'>{mclass.html_full_signature(mbuilder)}")
-
+               append("<h1>{mclass.signature}</h1>")
+               append("<div class='subtitle info'>")
+               mclass.html_full_signature(self)
                append("</div>")
                # comment
-               var nclass = mbuilder.mclassdef2nclassdef[mclass.intro]
-               append("<div style=\"float: right;\"><a id=\"lblDiffCommit\"></a></div>")
+               var nclass = ctx.mbuilder.mclassdef2nclassdef[mclass.intro]
                append("<section class='description'>")
-               if nclass isa AStdClassdef and not nclass.comment.is_empty then append("<pre class=\"text_label\" title=\"122\" name=\"\" tag=\"{mclass.mclassdefs.first.location.to_s}\" type=\"2\">{nclass.comment}</pre><textarea id=\"fileContent\" class=\"edit\" cols=\"76\" rows=\"1\" style=\"display: none;\"></textarea><a id=\"cancelBtn\" style=\"display: none;\">Cancel</a><a id=\"commitBtn\" style=\"display: none;\">Commit</a><pre id=\"preSave\" class=\"text_label\" type=\"2\"></pre>")
                process_generate_dot
                append("</section>")
                # concerns
@@ -877,7 +894,7 @@ class NitdocClass
                append("<h2 class='section-header'>Concerns</h2>")
                append("<ul>")
                for owner, mmodules in sections do
-                       var nowner = mbuilder.mmodule2nmodule[owner]
+                       var nowner = ctx.mbuilder.mmodule2nmodule[owner]
                        append("<li>")
                        if nowner.short_comment.is_empty then
                                append("<a href=\"#{owner.anchor}\">{owner.name}</a>")
@@ -887,7 +904,7 @@ class NitdocClass
                        if not mmodules.is_empty then
                                append("<ul>")
                                for mmodule in mmodules do
-                                       var nmodule = mbuilder.mmodule2nmodule[mmodule]
+                                       var nmodule = ctx.mbuilder.mmodule2nmodule[mmodule]
                                        if nmodule.short_comment.is_empty then
                                                append("<li><a href=\"#{mmodule.anchor}\">{mmodule.name}</a></li>")
                                        else
@@ -901,9 +918,7 @@ class NitdocClass
                append("</ul>")
                append("</section>")
                # properties
-               var prop_sorter = new ComparableSorter[MPropDef]
-               var sorterprop = new ComparableSorter[MProperty]
-               var sorterc = new ComparableSorter[MClass]
+               var prop_sorter = new MPropDefNameSorter
                var lmmodule = new List[MModule]
                # virtual and formal types
                var local_vtypes = new Array[MVirtualTypeDef]
@@ -915,14 +930,16 @@ class NitdocClass
                        if mclass.arity > 0 and nclass isa AStdClassdef then
                                for ft, bound in mclass.parameter_types do
                                        append("<article id='FT_{ft}'>")
-                                       append("<h3 class='signature'>{ft}: {bound.link(mbuilder)}</h3>")
+                                       append("<h3 class='signature' data-untyped-signature='{ft.to_s}'><span>{ft}: ")
+                                       bound.html_link(self)
+                                       append("</span></h3>")
                                        append("<div class=\"info\">formal generic type</div>")
                                        append("</article>")
                                end
                        end
                        # virtual types
                        prop_sorter.sort(local_vtypes)
-                       for prop in local_vtypes do append(prop.html_full_desc(self))
+                       for prop in local_vtypes do prop.html_full_desc(self)
                        append("</section>")
                end
                # constructors
@@ -932,7 +949,7 @@ class NitdocClass
                if local_consts.length > 0 then
                        append("<section class='constructors'>")
                        append("<h2 class='section-header'>Constructors</h2>")
-                       for prop in local_consts do append(prop.html_full_desc(self))
+                       for prop in local_consts do prop.html_full_desc(self)
                        append("</section>")
                end
                # methods
@@ -942,32 +959,36 @@ class NitdocClass
                        for owner, mmodules in sections do
                                append("<a id=\"{owner.anchor}\"></a>")
                                if owner != mclass.intro_mmodule and owner != mclass.public_owner then
-                                       var nowner = mbuilder.mmodule2nmodule[owner]
-                                       append("<h3 class=\"concern-toplevel\">Methods refined in {owner.link(mbuilder)}</h3>")
-                                       if nowner.short_comment.is_empty then
-                                               append("<p class=\"concern-doc\">{owner.link(mbuilder)}</p>")
-                                       else
-                                               append("<p class=\"concern-doc\">{owner.link(mbuilder)}: {nowner.short_comment}</p>")
+                                       var nowner = ctx.mbuilder.mmodule2nmodule[owner]
+                                       append("<h3 class=\"concern-toplevel\">Methods refined in ")
+                                       owner.html_link(self)
+                                       append("</h3>")
+                                       append("<p class=\"concern-doc\">")
+                                       owner.html_link(self)
+                                       if not nowner.short_comment.is_empty then
+                                               append(": {nowner.short_comment}")
                                        end
+                                       append("</p>")
                                end
                                if concern2meths.has_key(owner) then
                                        var mmethods = concern2meths[owner]
                                        prop_sorter.sort(mmethods)
-                                       for prop in mmethods do append(prop.html_full_desc(self))
+                                       for prop in mmethods do prop.html_full_desc(self)
                                end
                                for mmodule in mmodules do
                                        append("<a id=\"{mmodule.anchor}\"></a>")
-                                       var nmodule = mbuilder.mmodule2nmodule[mmodule]
+                                       var nmodule = ctx.mbuilder.mmodule2nmodule[mmodule]
                                        if mmodule != mclass.intro_mmodule and mmodule != mclass.public_owner then
-                                               if nmodule.short_comment.is_empty then
-                                                       append("<p class=\"concern-doc\">{mmodule.link(mbuilder)}</p>")
-                                               else
-                                                       append("<p class=\"concern-doc\">{mmodule.link(mbuilder)}: {nmodule.short_comment}</p>")
+                                               append("<p class=\"concern-doc\">")
+                                               mmodule.html_link(self)
+                                               if not nmodule.short_comment.is_empty then
+                                                       append(": {nmodule.short_comment}")
                                                end
+                                               append("</p>")
                                        end
                                        var mmethods = concern2meths[mmodule]
                                        prop_sorter.sort(mmethods)
-                                       for prop in mmethods do append(prop.html_full_desc(self))
+                                       for prop in mmethods do prop.html_full_desc(self)
                                end
                        end
                end
@@ -985,10 +1006,12 @@ class NitdocClass
                        append("<h3>Inherited Properties</h3>")
                        for c, mmethods in classes do
                                prop_sorter.sort(mmethods)
-                               append("<p>Defined in {c.link(mbuilder)}: ")
+                               append("<p>Defined in ")
+                               c.html_link(self)
+                               append(": ")
                                for i in [0..mmethods.length[ do
                                        var mmethod = mmethods[i]
-                                       append(mmethod.link(mbuilder))
+                                       mmethod.html_link(self)
                                        if i <= mmethods.length - 1 then append(", ")
                                end
                                append("</p>")
@@ -997,7 +1020,7 @@ class NitdocClass
                append("</section>")
        end
 
-       fun process_generate_dot do
+       private fun process_generate_dot do
                var pe = ctx.class_hierarchy[mclass]
                var cla = new HashSet[MClass]
                var sm = new HashSet[MClass]
@@ -1049,129 +1072,105 @@ end
 #
 
 redef class MModule
-       super Comparable
-       redef type OTHER: MModule
-       redef fun <(other: OTHER): Bool do return self.name < other.name
-
-       # Get the list of all methods in a module
-       fun imported_methods: Set[MMethod] do
-               var methods = new HashSet[MMethod]
-               for mclass in imported_mclasses do
-                       for method in mclass.intro_methods do
-                               methods.add(method)
-                       end
-               end
-               return methods
-       end
-
-       # Get the list aof all refined methods in a module
-       fun redef_methods: Set[MMethod] do
-               var methods = new HashSet[MMethod]
-               for mclass in redef_mclasses do
-                       for method in mclass.intro_methods do
-                               methods.add(method)
-                       end
-               end
-               return methods
-       end
-
        # URL to nitdoc page
        fun url: String do
-               var res = new Buffer
-               res.append("module_")
-               var mowner = public_owner
-               if mowner != null then
-                       res.append("{public_owner.name}_")
+               if url_cache == null then
+                       var res = new Buffer
+                       res.append("module_")
+                       var mowner = public_owner
+                       if mowner != null then
+                               res.append("{public_owner.name}_")
+                       end
+                       res.append("{self.name}.html")
+                       url_cache = res.to_s
                end
-               res.append("{self.name}.html")
-               return res.to_s
+               return url_cache.as(not null)
        end
+       private var url_cache: nullable String
 
        # html anchor id to the module in a nitdoc page
        fun anchor: String do
-               var res = new Buffer
-               res.append("MOD_")
-               var mowner = public_owner
-               if mowner != null then
-                       res.append("{public_owner.name}_")
+               if anchor_cache == null then
+                       var res = new Buffer
+                       res.append("MOD_")
+                       var mowner = public_owner
+                       if mowner != null then
+                               res.append("{public_owner.name}_")
+                       end
+                       res.append(self.name)
+                       anchor_cache = res.to_s
                end
-               res.append(self.name)
-               return res.to_s
+               return anchor_cache.as(not null)
        end
+       private var anchor_cache: nullable String
 
        # Return a link (html a tag) to the nitdoc module page
-       fun link(mbuilder: ModelBuilder): String do
-               if mbuilder.mmodule2nmodule.has_key(self) then
-                       return "<a href='{url}' title='{mbuilder.mmodule2nmodule[self].short_comment}'>{name}</a>"
-               else
-                       return "<a href='{url}'>{name}</a>"
+       fun html_link(page: NitdocPage) do
+               if html_link_cache == null then
+                       var res = new Buffer
+                       if page.ctx.mbuilder.mmodule2nmodule.has_key(self) then
+                               res.append("<a href='{url}' title='{page.ctx.mbuilder.mmodule2nmodule[self].short_comment}'>{name}</a>")
+                       else
+                               res.append("<a href='{url}'>{name}</a>")
+                       end
+                       html_link_cache = res.to_s
                end
+               page.append(html_link_cache.as(not null))
        end
+       private var html_link_cache: nullable String
 
        # Return the module signature decorated with html
-       fun html_signature(mbuilder: ModelBuilder): String do
-               return "<span>module {html_full_namespace(mbuilder)}</span>"
+       fun html_signature(page: NitdocPage) do
+               page.append("<span>module ")
+               html_full_namespace(page)
+               page.append("</span>")
        end
 
        # Return the module full namespace decorated with html
-       fun html_full_namespace(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               res.append("<span>")
+       fun html_full_namespace(page: NitdocPage) do
+               page.append("<span>")
                var mowner = public_owner
                if mowner != null then
-                       res.append(public_owner.html_namespace(mbuilder))
-                       res.append("::")
+                       public_owner.html_namespace(page)
+                       page.append("::")
                end
-               res.append(self.link(mbuilder))
-               res.append("</span>")
-               return res.to_s
+               html_link(page)
+               page.append("</span>")
        end
 
        # Return the module full namespace decorated with html
-       fun html_namespace(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               res.append("<span>")
+       fun html_namespace(page: NitdocPage) do
+               page.append("<span>")
                var mowner = public_owner
                if mowner != null then
-                       res.append(public_owner.html_namespace(mbuilder))
+                       public_owner.html_namespace(page)
                else
-                       res.append(self.link(mbuilder))
+                       html_link(page)
                end
-               res.append("</span>")
-               return res.to_s
+               page.append("</span>")
        end
 
        # Return the full comment of the module decorated with html
-       fun html_full_comment(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               if mbuilder.mmodule2nmodule.has_key(self) then
-                       res.append("<div id='description'>")
-                       res.append("<pre class='text_label'>{mbuilder.mmodule2nmodule[self].comment}</pre>")
-                       res.append("<textarea class='edit' rows='1' cols='76' id='fileContent'></textarea>")
-                       res.append("<a id='cancelBtn'>Cancel</a>")
-                       res.append("<a id='commitBtn'>Commit</a>")
-                       res.append("<pre class='text_label' id='preSave' type='2'></pre>")
-                       res.append("</div>")
+       fun html_full_comment(page: NitdocPage) do
+               if page.ctx.mbuilder.mmodule2nmodule.has_key(self) then
+                       page.append("<div id='description'>")
+                       page.append("<pre class='text_label'>{page.ctx.mbuilder.mmodule2nmodule[self].full_comment}</pre>")
+                       page.append("</div>")
                end
-               return res.to_s
        end
 end
 
 redef class MClass
-       super Comparable
-       redef type OTHER: MClass
-       redef fun <(other: OTHER): Bool do return self.name < other.name
-
        # Return the module signature decorated with html
-       fun html_full_signature(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               if visibility < public_visibility then res.append("{visibility.to_s} ")
-               res.append("{kind} {html_namespace(mbuilder)}")
-               return res.to_s
+       fun html_full_signature(page: NitdocPage) do
+               if visibility < public_visibility then page.append("{visibility.to_s} ")
+               page.append("{kind} ")
+               html_namespace(page)
        end
 
-       # Add type parameters
-       fun html_signature: String do
+       # name with formal parameter
+       # Foo[A, B]
+       private fun signature: String do
                if arity > 0 then
                        return "{name}[{intro.parameter_names.join(", ")}]"
                else
@@ -1180,29 +1179,33 @@ redef class MClass
        end
 
        # Return a link (html a tag) to the nitdoc class page
-       fun link(mbuilder: ModelBuilder): String do
-               if mbuilder.mclassdef2nclassdef.has_key(intro) then
-                       var nclass = mbuilder.mclassdef2nclassdef[intro]
-                       if nclass isa AStdClassdef then
-                               return "<a href='{url}' title=\"{nclass.short_comment}\">{html_signature}</a>"
-                       else
-                               return "<a href='{url}'>{html_signature}</a>"
+       fun html_link(page: NitdocPage) do
+               if html_link_cache == null then
+                       var res = new Buffer
+                       res.append("<a href='{url}'")
+                       if page.ctx.mbuilder.mclassdef2nclassdef.has_key(intro) then
+                               var nclass = page.ctx.mbuilder.mclassdef2nclassdef[intro]
+                               if nclass isa AStdClassdef then
+                                       res.append(" title=\"{nclass.short_comment}\"")
+                               end
                        end
-               else
-                       return "<a href='{url}'>{html_signature}</a>"
+                       res.append(">{signature}</a>")
+                       html_link_cache = res.to_s
                end
+               page.append(html_link_cache.as(not null))
        end
+       private var html_link_cache: nullable String
 
        # Return the class namespace decorated with html
-       fun html_namespace(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               res.append(intro_mmodule.html_namespace(mbuilder))
-               res.append("::<span>{self.link(mbuilder)}</span>")
-               return res.to_s
+       fun html_namespace(page: NitdocPage) do
+               intro_mmodule.html_namespace(page)
+               page.append("::<span>")
+               html_link(page)
+               page.append("</span>")
        end
 
        fun url: String do
-               return "class_{public_owner}_{c_name}.html"
+               return "class_{public_owner}_{name}.html"
        end
 
        # Escape name for html output
@@ -1210,13 +1213,12 @@ redef class MClass
 end
 
 redef class MProperty
-       super Comparable
-       redef type OTHER: MProperty
-       redef fun <(other: OTHER): Bool do return self.name < other.name
-
        # Return the property namespace decorated with html
-       fun html_namespace(mbuilder: ModelBuilder): String do
-               return "{intro_mclassdef.mclass.html_namespace(mbuilder)}::<span>{intro.link(mbuilder)}</span>"
+       fun html_namespace(page: NitdocPage) do
+               intro_mclassdef.mclass.html_namespace(page)
+               page.append("::<span>")
+               intro.html_link(page)
+               page.append("</span>")
        end
 
        # Escape name for html output
@@ -1224,113 +1226,127 @@ redef class MProperty
 end
 
 redef class MType
-       fun link(mbuilder: ModelBuilder): String is abstract
+       fun html_link(page: NitdocPage) is abstract
 end
 
 redef class MClassType
-       redef fun link(mbuilder) do return mclass.link(mbuilder)
+       redef fun html_link(page) do mclass.html_link(page)
 end
 
 redef class MNullableType
-       redef fun link(mbuilder) do return "nullable {mtype.link(mbuilder)}"
+       redef fun html_link(page) do
+               page.append("nullable ")
+               mtype.html_link(page)
+       end
 end
 
 redef class MGenericType
-       redef fun link(mbuilder) do
-               var res = new Buffer
-               res.append("<a href='{mclass.url}'>{mclass.name}</a>[")
+       redef fun html_link(page) do
+               page.append("<a href='{mclass.url}'>{mclass.name}</a>[")
                for i in [0..arguments.length[ do
-                       res.append(arguments[i].link(mbuilder))
-                       if i < arguments.length - 1 then res.append(", ")
+                       arguments[i].html_link(page)
+                       if i < arguments.length - 1 then page.append(", ")
                end
-               res.append("]")
-               return res.to_s
+               page.append("]")
        end
 end
 
 redef class MParameterType
-       redef fun link(mbuilder) do
+       redef fun html_link(page) do
                var name = mclass.intro.parameter_names[rank]
-               return "<a href='{mclass.url}#FT_{name}' title='formal type'>{name}</a>"
+               page.append("<a href='{mclass.url}#FT_{name}' title='formal type'>{name}</a>")
        end
 end
 
 redef class MVirtualType
-       redef fun link(mbuilder) do return mproperty.intro.link(mbuilder)
+       redef fun html_link(page) do mproperty.intro.html_link(page)
 end
 
 redef class MClassDef
        # Return the classdef namespace decorated with html
-       fun html_namespace(mbuilder: ModelBuilder): String do
-               var res = new Buffer
-               res.append(mmodule.html_full_namespace(mbuilder))
-               res.append("::<span>{self.mclass.link(mbuilder)}</span>")
-               return res.to_s
+       fun html_namespace(page: NitdocPage) do
+               mmodule.html_full_namespace(page)
+               page.append("::<span>")
+               mclass.html_link(page)
+               page.append("</span>")
        end
 end
 
 redef class MPropDef
-       super Comparable
-       redef type OTHER: MPropDef
-       redef fun <(other: OTHER): Bool do return self.mproperty.name < other.mproperty.name
+       fun url: String do
+               if url_cache == null then
+                       url_cache = "{mclassdef.mclass.url}#{anchor}"
+               end
+               return url_cache.as(not null)
+       end
+       private var url_cache: nullable String
 
-       fun url: String do return "{mclassdef.mclass.url}#{anchor}"
-       fun anchor: String do return "PROP_{mclassdef.mclass.public_owner.name}_{c_name}"
+       fun anchor: String do
+               if anchor_cache == null then
+                       anchor_cache = "PROP_{mclassdef.mclass.public_owner.name}_{mproperty.name}"
+               end
+               return anchor_cache.as(not null)
+       end
+       private var anchor_cache: nullable String
 
        # Return a link (html a tag) to the nitdoc class page
-       fun link(mbuilder: ModelBuilder): String do
-               if mbuilder.mpropdef2npropdef.has_key(self) then
-                       var nprop = mbuilder.mpropdef2npropdef[self]
-                       return "<a href=\"{url}\" title=\"{nprop.short_comment}\">{mproperty.name}</a>"
-               else
-                       return "<a href=\"{url}\">{mproperty.name}</a>"
+       fun html_link(page: NitdocPage) do
+               if html_link_cache == null then
+                       var res = new Buffer
+                       if page.ctx.mbuilder.mpropdef2npropdef.has_key(self) then
+                               var nprop = page.ctx.mbuilder.mpropdef2npropdef[self]
+                               res.append("<a href=\"{url}\" title=\"{nprop.short_comment}\">{mproperty.name}</a>")
+                       else
+                               res.append("<a href=\"{url}\">{mproperty.name}</a>")
+                       end
+                       html_link_cache = res.to_s
                end
+               page.append(html_link_cache.as(not null))
        end
+       private var html_link_cache: nullable String
 
        # Return a list item for the mpropdef
-       fun html_list_item(mbuilder: ModelBuilder): String do
-               var res = new Buffer
+       private fun html_list_item(page: NitdocPage) do
                if is_intro then
-                       res.append("<li class='intro'>")
-                       res.append("<span title='introduction'>I</span>&nbsp;{link(mbuilder)} ({mclassdef.mclass.link(mbuilder)})")
-                       res.append("</li>")
+                       page.append("<li class='intro'>")
+                       page.append("<span title='introduction'>I</span>&nbsp;")
                else
-                       res.append("<li class='redef'>")
-                       res.append("<span title='redefinition'>R</span>&nbsp;{link(mbuilder)} ({mclassdef.mclass.link(mbuilder)})")
-                       res.append("</li>")
+                       page.append("<li class='redef'>")
+                       page.append("<span title='redefinition'>R</span>&nbsp;")
                end
-               return res.to_s
+               html_link(page)
+               page.append("(")
+               mclassdef.mclass.html_link(page)
+               page.append(")")
+               page.append("</li>")
        end
 
        # Return a list item for the mpropdef
-       fun html_sidebar_item(page: NitdocClass): String do
-               var res = new Buffer
+       private fun html_sidebar_item(page: NitdocClass) do
                if is_intro and mclassdef.mclass == page.mclass then
-                       res.append("<li class='intro'>")
-                       res.append("<span title='Introduced'>I</span>")
+                       page.append("<li class='intro'>")
+                       page.append("<span title='Introduced'>I</span>")
                else if is_intro and mclassdef.mclass != page.mclass then
-                       res.append("<li class='inherit'>")
-                       res.append("<span title='Inherited'>H</span>")
+                       page.append("<li class='inherit'>")
+                       page.append("<span title='Inherited'>H</span>")
                else
-                       res.append("<li class='redef'>")
-                       res.append("<span title='Redefined'>R</span>")
+                       page.append("<li class='redef'>")
+                       page.append("<span title='Redefined'>R</span>")
                end
-               res.append(link(page.mbuilder))
-               res.append("</li>")
-               return res.to_s
+               html_link(page)
+               page.append("</li>")
        end
 
-       fun html_full_desc(page: NitdocClass): String is abstract
-       fun html_info(page: NitdocClass): String is abstract
+       private fun html_full_desc(page: NitdocClass) is abstract
+       private fun html_info(page: NitdocClass) is abstract
 
        fun full_name: String do
                return "{mclassdef.mclass.public_owner.name}::{mclassdef.mclass.name}::{mproperty.name}"
        end
 
-       fun html_inheritance(page: NitdocClass): String do
-               var res = new Buffer
+       private fun html_inheritance(page: NitdocClass) do
                # definitions block
-               res.append("<p class='info'>")
+               page.append("<p class='info'>")
                page.ctx.mainmodule.linearize_mpropdefs(mproperty.mpropdefs)
                var previous_defs = new Array[MPropDef]
                var next_defs = new Array[MPropDef]
@@ -1341,282 +1357,237 @@ redef class MPropDef
                                continue
                        end
                        if not self_passed then
-                               if not page.mclass.ancestors.has(def.mclassdef.mclass) then continue
+                               if def.mclassdef.mclass.in_hierarchy(page.ctx.mainmodule) < page.mclass then continue
                                if def.is_intro then continue
                                previous_defs.add(def)
                        else
-                               if not page.mclass.descendants.has(def.mclassdef.mclass) then continue
+                               if page.mclass.in_hierarchy(page.ctx.mainmodule) < def.mclassdef.mclass then continue
                                next_defs.add(def)
                        end
                end
-               var source = ""
-               if page.mbuilder.mpropdef2npropdef.has_key(self) then
-                       source = " {page.show_source(page.mbuilder.mpropdef2npropdef[self].location)}"
+               page.append("defined by ")
+               mclassdef.mmodule.html_full_namespace(page)
+               if page.ctx.mbuilder.mpropdef2npropdef.has_key(self) then
+                       page.append(" {page.show_source(page.ctx.mbuilder.mpropdef2npropdef[self].location)}")
                end
-               res.append("defined by {mclassdef.mmodule.html_full_namespace(page.mbuilder)}{source}")
                if not is_intro then
-                       source = ""
-                       if page.mbuilder.mpropdef2npropdef.has_key(mproperty.intro) then 
-                               source = " {page.show_source(page.mbuilder.mpropdef2npropdef[mproperty.intro].location)}"
+                       page.append(", introduced by ")
+                       mproperty.intro.mclassdef.mclass.html_link(page)
+                       if page.ctx.mbuilder.mpropdef2npropdef.has_key(self) then
+                               page.append(" {page.show_source(page.ctx.mbuilder.mpropdef2npropdef[self].location)}")
                        end
-                       res.append(", introduced by {mproperty.intro.mclassdef.mclass.link(page.mbuilder)}{source}")
                end
                if not previous_defs.is_empty then
-                       res.append(", inherited from ")
+                       page.append(", inherited from ")
                        for i in [0..previous_defs.length[ do
                                var def = previous_defs[i]
-                               source = ""
-                               if page.mbuilder.mpropdef2npropdef.has_key(def) then 
-                                       source = " {page.show_source(page.mbuilder.mpropdef2npropdef[def].location)}"
+                               def.mclassdef.mclass.html_link(page)
+                               if page.ctx.mbuilder.mpropdef2npropdef.has_key(def) then
+                                       page.append(" {page.show_source(page.ctx.mbuilder.mpropdef2npropdef[def].location)}")
                                end
-                               res.append("{def.mclassdef.mclass.link(page.mbuilder)}{source}")
-                               if i < previous_defs.length - 1 then res.append(", ")
+
+                               if i < previous_defs.length - 1 then page.append(", ")
                        end
                end
                if not next_defs.is_empty then
-                       res.append(", redefined by ")
+                       page.append(", redefined by ")
                        for i in [0..next_defs.length[ do
                                var def = next_defs[i]
-                               source = ""
-                               if page.mbuilder.mpropdef2npropdef.has_key(def) then 
-                                       source = " {page.show_source(page.mbuilder.mpropdef2npropdef[def].location)}"
+                               def.mclassdef.mclass.html_link(page)
+                               if page.ctx.mbuilder.mpropdef2npropdef.has_key(def) then
+                                       page.append(" {page.show_source(page.ctx.mbuilder.mpropdef2npropdef[def].location)}")
                                end
-                                res.append("{def.mclassdef.mclass.link(page.mbuilder)}{source}")
-                                if i < next_defs.length - 1 then res.append(", ")
+                               if i < next_defs.length - 1 then page.append(", ")
                        end
                end
-               res.append(".</p>")
-               return res.to_s
+               page.append(".</p>")
+       end
+
+       private fun html_comment(page: NitdocClass) do
+               if not page.ctx.mbuilder.mpropdef2npropdef.has_key(self) then return
+               var nprop = page.ctx.mbuilder.mpropdef2npropdef[self]
+               page.append("<div class='description'>")
+               if not is_intro and page.ctx.mbuilder.mpropdef2npropdef.has_key(mproperty.intro) then
+                       var intro_nprop = page.ctx.mbuilder.mpropdef2npropdef[mproperty.intro]
+                       page.append("<p class='info'>from ")
+                       mproperty.html_namespace(page)
+                       page.append("</p>")
+                       if intro_nprop.full_comment == "" then
+                               page.append("<span class=\"noComment\">No comment</span>")
+                       else
+                               page.append("<pre>{intro_nprop.full_comment}</pre>")
+                       end
+                       page.append("<p class='info'>from ")
+                       mclassdef.html_namespace(page)
+                       page.append("</p>")
+               end
+               if nprop.full_comment == "" then
+                       page.append("<span class=\"noComment\">No comment</span>")
+               else
+                       page.append("<pre>{nprop.full_comment}</pre>")
+               end
+               html_inheritance(page)
+               page.append("</div>")
        end
 end
 
 redef class MMethodDef
        redef fun html_full_desc(page) do
-               if not page.mbuilder.mpropdef2npropdef.has_key(self) then
-                       return ""
-               end
-               var res = new Buffer
-               var mprop = mproperty
-               var nprop = page.mbuilder.mpropdef2npropdef[self]
                var classes = new Array[String]
-               var is_redef = mprop.intro_mclassdef.mclass != page.mclass
-               classes.add("fun")
-               if mprop.is_init then classes.add("init")
-               if is_redef then classes.add("redef")
-               classes.add(mproperty.visibility.to_s)
-               res.append("<article class='{classes.join(" ")}' id='{anchor}'>")
-               if nprop isa AAttrPropdef then
-                       if nprop.mreadpropdef == self then
-                               res.append("<h3 class='signature'>{mprop.name}: {nprop.html_signature(page.mbuilder)}</h3>")
-                       else
-                               res.append("<h3 class='signature'>{mprop.name}(value: {nprop.html_signature(page.mbuilder)})</h3>")
-                       end
+               var is_redef = mproperty.intro_mclassdef.mclass != page.mclass
+               if mproperty.is_init then
+                       classes.add("init")
                else
-                       var intro_nprop = page.mbuilder.mpropdef2npropdef[mprop.intro]
-                       res.append("<h3 class='signature'>{mprop.name}{intro_nprop.html_signature(page.mbuilder)}</h3>")
+                       classes.add("fun")
                end
-               res.append(html_info(page))
-               res.append("<div class='description'>")
-               if nprop.comment == "" then
-                       res.append("<a class=\"newComment\" title=\"32\" tag=\"\">New Comment</a>")
+               if is_redef then classes.add("redef")
+               classes.add(mproperty.visibility.to_s)
+               page.append("<article class='{classes.join(" ")}' id='{anchor}'>")
+               if page.ctx.mbuilder.mpropdef2npropdef.has_key(self) then
+                       page.append("<h3 class='signature' data-untyped-signature='{mproperty.name}{msignature.untyped_signature(page)}'>")
+                       page.append("<span>{mproperty.name}")
+                       msignature.html_signature(page)
+                       page.append("</span></h3>")
                else
-                       res.append("<pre class=\"text_label\" title=\"\" name=\"\" tag=\"\" type=\"1\">{nprop.comment}</pre>")
+                       page.append("<h3 class='signature' data-untyped-signature='init{msignature.untyped_signature(page)}'>")
+                       page.append("<span>init")
+                       msignature.html_signature(page)
+                       page.append("</span></h3>")
                end
-               res.append("<textarea id=\"fileContent\" class=\"edit\" cols=\"76\" rows=\"1\" style=\"display: none;\"></textarea><a id=\"cancelBtn\" style=\"display: none;\">Cancel</a><a id=\"commitBtn\" style=\"display: none;\">Commit</a><pre id=\"preSave\" class=\"text_label\" type=\"2\"></pre>")
-               res.append(html_inheritance(page))
-               res.append("</div>")
-               res.append("</article>")
-               return res.to_s
+               html_info(page)
+               html_comment(page)
+               page.append("</article>")
        end
 
        redef fun html_info(page) do
-               var res = new Buffer
-               res.append("<div class='info'>")
-               if mproperty.visibility < public_visibility then res.append("{mproperty.visibility.to_s} ")
-               if mproperty.intro_mclassdef.mclass != page.mclass then res.append("redef ")
-               res.append("fun {mproperty.html_namespace(page.mbuilder)}")
-               res.append("</div>")
-               res.append("<div style=\"float: right;\"><a id=\"lblDiffCommit\"></a></div>")
-               return res.to_s
+               page.append("<div class='info'>")
+               if mproperty.visibility < public_visibility then page.append("{mproperty.visibility.to_s} ")
+               if mproperty.intro_mclassdef.mclass != page.mclass then page.append("redef ")
+               if mproperty.is_init then
+                       page.append("init ")
+               else
+                       page.append("fun ")
+               end
+               mproperty.html_namespace(page)
+               page.append("</div>")
        end
 end
 
 redef class MVirtualTypeDef
        redef fun html_full_desc(page) do
-               var res = new Buffer
-               var mprop = mproperty
-               var is_redef = mprop.intro_mclassdef.mclass != page.mclass
+               var is_redef = mproperty.intro_mclassdef.mclass != page.mclass
                var classes = new Array[String]
                classes.add("type")
                if is_redef then classes.add("redef")
                classes.add(mproperty.visibility.to_s)
-               res.append("<article class='{classes.join(" ")}' id='{anchor}'>")
-               res.append("<h3 class='signature'>{mprop.name}: {bound.link(page.mbuilder)}</h3>")
-               res.append(html_info(page))
-               res.append("<div class='description'>")
-
-               if page.mbuilder.mpropdef2npropdef.has_key(self) and page.mbuilder.mpropdef2npropdef[self].comment != "" then
-                       var nprop = page.mbuilder.mpropdef2npropdef[self]
-                       res.append("<pre class=\"text_label\" title=\"\" name=\"\" tag=\"\" type=\"1\">{nprop.comment}</pre>")
-               else
-                       res.append("<a class=\"newComment\" title=\"32\" tag=\"\">New Comment</a>")
-               end
-               res.append("<textarea id=\"fileContent\" class=\"edit\" cols=\"76\" rows=\"1\" style=\"display: none;\"></textarea><a id=\"cancelBtn\" style=\"display: none;\">Cancel</a><a id=\"commitBtn\" style=\"display: none;\">Commit</a><pre id=\"preSave\" class=\"text_label\" type=\"2\"></pre>")
-               res.append(html_inheritance(page))
-               res.append("</div>")
-               res.append("</article>")
-               return res.to_s
+               page.append("<article class='{classes.join(" ")}' id='{anchor}'>")
+               page.append("<h3 class='signature' data-untyped-signature='{mproperty.name}'><span>{mproperty.name}: ")
+               bound.html_link(page)
+               page.append("</span></h3>")
+               html_info(page)
+               html_comment(page)
+               page.append("</article>")
        end
 
        redef fun html_info(page) do
-               var res = new Buffer
-               res.append("<div class='info'>")
-               if mproperty.intro_mclassdef.mclass != page.mclass then res.append("redef ")
-               res.append("type {mproperty.html_namespace(page.mbuilder)}")
-               res.append("</div>")
-               res.append("<div style=\"float: right;\"><a id=\"lblDiffCommit\"></a></div>")
-               return res.to_s
+               page.append("<div class='info'>")
+               if mproperty.intro_mclassdef.mclass != page.mclass then page.append("redef ")
+               page.append("type ")
+               mproperty.html_namespace(page)
+               page.append("</div>")
        end
 end
 
-#
-# Nodes redefs
-#
-
-redef class AModule
-       private fun comment: String do
-               var ret = new Buffer
-               if n_moduledecl == null or n_moduledecl.n_doc == null then return ""
-               for t in n_moduledecl.n_doc.n_comment do
-                       ret.append(t.text.substring_from(1))
+redef class MSignature
+       private fun html_signature(page: NitdocPage) do
+               if not mparameters.is_empty then
+                       page.append("(")
+                       for i in [0..mparameters.length[ do
+                               mparameters[i].html_link(page)
+                               if i < mparameters.length - 1 then page.append(", ")
+                       end
+                       page.append(")")
                end
-               return ret.to_s.html_escape
-       end
-
-       private fun short_comment: String do
-               var ret = new Buffer
-               if n_moduledecl != null and n_moduledecl.n_doc != null then
-                       ret.append(n_moduledecl.n_doc.n_comment.first.text.substring_from(2).replace("\n", ""))
+               if return_mtype != null then
+                       page.append(": ")
+                       return_mtype.html_link(page)
                end
-               return ret.to_s.html_escape
        end
-end
 
-redef class AStdClassdef
-       private fun comment: String do
-               var ret = new Buffer
-               if n_doc != null then
-                       for t in n_doc.n_comment do ret.append(t.text.substring_from(1))
+       private fun untyped_signature(page: NitdocPage): String do
+               var res = new Buffer
+               if not mparameters.is_empty then
+                       res.append("(")
+                       for i in [0..mparameters.length[ do
+                               res.append(mparameters[i].name)
+                               if i < mparameters.length - 1 then res.append(", ")
+                       end
+                       res.append(")")
                end
-               return ret.to_s.html_escape
-       end
-
-       private fun short_comment: String do
-               var ret = new Buffer
-               if n_doc != null then ret.append(n_doc.n_comment.first.text.substring_from(2).replace("\n", ""))
-               return ret.to_s.html_escape
+               return res.to_s
        end
 end
 
-redef class APropdef
-       private fun short_comment: String is abstract
-       private fun html_signature(mbuilder: ModelBuilder): String is abstract
-       private fun comment: String is abstract
+redef class MParameter
+       private fun html_link(page: NitdocPage) do
+               page.append("{name}: ")
+               mtype.html_link(page)
+               if is_vararg then page.append("...")
+       end
 end
 
-redef class AAttrPropdef
-       redef fun short_comment do
-               var ret = new Buffer
-               if n_doc != null then ret.append(n_doc.n_comment.first.text.substring_from(2).replace("\n", ""))
-               return ret.to_s.html_escape
-       end
+#
+# Nodes redefs
+#
 
-       redef private fun comment: String do
-               var ret = new Buffer
-               if n_doc != null then
-                       for t in n_doc.n_comment do ret.append(t.text.substring_from(1))
+redef class AModule
+       private fun short_comment: String do
+               if n_moduledecl != null and n_moduledecl.n_doc != null then
+                       return n_moduledecl.n_doc.n_comment.first.text.substring_from(2).replace("\n", "").html_escape
                end
-               return ret.to_s.html_escape
-       end
-
-       redef fun html_signature(mbuilder) do
-               if n_type != null then return n_type.mtype.link(mbuilder)
                return ""
        end
-end
-
-redef class AMethPropdef
-       redef fun short_comment do
-               var ret = new Buffer
-               if n_doc != null then ret.append(n_doc.n_comment.first.text.substring_from(2).replace("\n", ""))
-               return ret.to_s.html_escape
-       end
 
-       redef private fun comment: String do
-               var ret = new Buffer
-               if n_doc != null then
-                       for t in n_doc.n_comment do ret.append(t.text.substring_from(1))
+       private fun full_comment: String do
+               var res = new Buffer
+               if n_moduledecl != null and n_moduledecl.n_doc != null then
+                       for t in n_moduledecl.n_doc.n_comment do
+                               res.append(t.text.substring_from(1).html_escape)
+                       end
                end
-               return ret.to_s.html_escape
-       end
-
-       redef fun html_signature(mbuilder) do
-               if n_signature != null then return n_signature.to_html(mbuilder)
-               return ""
+               return res.to_s
        end
 end
 
-redef class ATypePropdef
-       redef fun short_comment do
-               var ret = new Buffer
-               if n_doc != null then ret.append(n_doc.n_comment.first.text.substring_from(2).replace("\n", ""))
-               return ret.to_s.html_escape
+redef class AStdClassdef
+       private fun short_comment: String do
+               if n_doc != null then return n_doc.n_comment.first.text.substring_from(2).replace("\n", "").html_escape
+               return ""
        end
 
-       redef private fun comment: String do
-               var ret = new Buffer
+       private fun full_comment: String do
+               var res = new Buffer
                if n_doc != null then
-                       for t in n_doc.n_comment do ret.append(t.text.substring_from(1))
+                       for t in n_doc.n_comment do res.append(t.text.substring_from(1).html_escape)
                end
-               return ret.to_s.html_escape
+               return res.to_s
        end
+end
 
-       redef fun html_signature(mbuilder) do
-               return mpropdef.bound.link(mbuilder)
+redef class APropdef
+       private fun short_comment: String do
+               if n_doc != null then return n_doc.n_comment.first.text.substring_from(2).replace("\n", "").html_escape
+               return ""
        end
-end
 
-redef class ASignature
-       fun to_html(mbuilder: ModelBuilder): String do
-               #TODO closures
+       private fun full_comment: String do
                var res = new Buffer
-               if not n_params.is_empty then
-                       res.append("(")
-                       for i in [0..n_params.length[ do
-                               res.append(n_params[i].to_html(mbuilder))
-                               if i < n_params.length - 1 then res.append(", ")
-                       end
-                       res.append(")")
+               if n_doc != null then
+                       for t in n_doc.n_comment do res.append(t.text.substring_from(1).html_escape)
                end
-               if n_type != null and n_type.mtype.link(mbuilder) != "" then res.append(": {n_type.mtype.link(mbuilder)}")
                return res.to_s
        end
 end
 
-redef class AParam
-       fun to_html(mbuilder: ModelBuilder): String do
-               var ret = "{n_id.text}"
-               if n_type != null then
-                       ret = "{ret}: {n_type.mtype.link(mbuilder)}"
-                       if n_dotdotdot != null then ret = "{ret}..."
-               end
-               return ret
-       end
-end
-
-# Create a tool context to handle options and paths
-var toolcontext = new ToolContext
-
-# Here we launch the nit index
-var nitdoc = new NitdocContext(toolcontext)
-nitdoc.start
+var nitdoc = new NitdocContext
+nitdoc.generate_nitdoc