nitdoc: remove warnings from doc_readme

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/src/doc/doc_phases/doc_readme.nit b/src/doc/doc_phases/doc_readme.nit
index c026b77..f80b7af 100644 (file)
--- a/src/doc/doc_phases/doc_readme.nit
+++ b/src/doc/doc_phases/doc_readme.nit
@@ -38,7 +38,8 @@ class ReadmePhase
        fun warning(location: nullable MDLocation, page: ReadmePage, message: String) do
                var loc = null
                if location != null then
-                       loc = location.to_location(page.mentity.mdoc.location.file)
+                       var mdoc = page.mentity.mdoc
+                       if mdoc != null then loc = location.to_location(mdoc.location.file)
                end
                ctx.warning(loc, "readme-warning", message)
        end
@@ -51,14 +52,15 @@ end
 
 redef class ReadmePage
        redef fun build_content(v, doc) do
-               if mentity.mdoc == null then
+               var mdoc = mentity.mdoc
+               if mdoc == null then
                        v.warning(null, self, "Empty README for group `{mentity}`")
                        return
                end
                var proc = new MarkdownProcessor
                proc.emitter = new ReadmeMdEmitter(proc, self, v)
                proc.emitter.decorator = new ReadmeDecorator
-               var md = mentity.mdoc.content.join("\n")
+               var md = mdoc.content.join("\n")
                proc.process(md)
        end
 end
@@ -91,6 +93,7 @@ class ReadmeMdEmitter
        # Called from `add_headline`.
        private fun open_section(lvl: Int, title: String) do
                var section = new ReadmeSection(title.escape_to_c, title, lvl, processor)
+               var current_section = self.current_section
                if current_section == null then
                        page.root.add_child(section)
                else
@@ -119,6 +122,7 @@ class ReadmeMdEmitter
        # This closes the current article, inserts `article` then opens a new article.
        private fun add_article(article: DocArticle) do
                close_article
+               var current_section = self.current_section
                if current_section == null then
                        page.root.add_child(article)
                else
@@ -187,12 +191,12 @@ class ReadmeDecorator
        redef type EMITTER: ReadmeMdEmitter
 
        redef fun add_headline(v, block) do
-               var txt = block.block.first_line.value
+               var txt = block.block.first_line.as(not null).value
                var lvl = block.depth
                if not v.context.is_empty then
                        v.close_article
                        while v.current_section != null do
-                               if v.current_section.depth < lvl then break
+                               if v.current_section.as(not null).depth < lvl then break
                                v.close_section
                        end
                end
@@ -201,7 +205,7 @@ class ReadmeDecorator
        end
 
        redef fun add_wikilink(v, token) do
-               var link = token.link.to_s
+               var link = token.link.as(not null).to_s
                var cmd = new DocCommand(link)
                if cmd isa UnknownCommand then
                        # search MEntities by name
@@ -223,8 +227,9 @@ class ReadmeDecorator
                # TODO real link
                var link = mentity.full_name
                if name == null then name = mentity.name
-               if comment == null and mentity.mdoc != null then
-                       comment = mentity.mdoc.synopsis
+               if comment == null then
+                       var mdoc = mentity.mdoc
+                       if mdoc != null then comment = mdoc.synopsis
                end
                add_link(v, link, name, comment)
        end