model: use the robust `intro_mmodule` instead of `intro.mmodule`.
[nit.git] / src / highlight.nit
index d70281e..b2f856e 100644 (file)
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Highliting of Nit AST
+# Highlighting of Nit AST
 module highlight
 
 import frontend
@@ -48,6 +48,8 @@ class HighlightVisitor
                html.add_class("nitcode")
        end
 
+       # The entry-point of the highlighting.
+       # Will fill `html` with the generated HTML content.
        fun enter_visit(n: ANode)
        do
                n.parentize_tokens
@@ -55,6 +57,37 @@ class HighlightVisitor
                htmlize(s.first_token.as(not null), s.last_token.as(not null))
        end
 
+       private fun full_tag(anode: ANode, hv: HighlightVisitor): nullable HTMLTag
+       do
+               var tag = anode.make_tag(hv)
+               if tag == null then return null
+               var infobox = anode.infobox(hv)
+               if infobox == null and anode isa Token then
+                       var pa = anode.parent
+                       if pa != null then
+                               var c = anode
+                               if c isa TId or c isa TClassid or c isa TAttrid or c isa TokenLiteral or c isa TokenOperator or c isa TComment and pa isa ADoc then
+                                       infobox = pa.decorate_tag(hv, tag, anode)
+                               end
+                       end
+               end
+               var messages = anode.location.messages
+               if messages != null then
+                       tag.css("border-bottom", "solid 2px red")
+                       if infobox == null then
+                               infobox = new HInfoBox(hv, "Messages")
+                       end
+                       var c = infobox.new_dropdown("{messages.length} message(s)", "")
+                       for m in messages do
+                               c.open("li").append(m.text)
+                       end
+               end
+               if infobox != null then
+                       tag.attach_infobox(infobox)
+               end
+               return tag
+       end
+
        # Produce HTML between two tokens
        protected fun htmlize(first_token, last_token: Token)
        do
@@ -77,11 +110,9 @@ class HighlightVisitor
                                if c0 != null then starting = c0.starting_prods
                                if starting != null then for p in starting do
                                        if not p.is_block then continue
-                                       var tag = p.make_tag(hv)
+                                       var tag = full_tag(p, hv)
                                        if tag == null then continue
                                        tag.add_class("foldable")
-                                       var infobox = p.infobox(hv)
-                                       if infobox != null then tag.attach_infobox(infobox)
                                        stack2.add(html)
                                        html.add tag
                                        html = tag
@@ -106,10 +137,8 @@ class HighlightVisitor
                        starting = c.starting_prods
                        if starting != null then for p in starting do
                                if not p.is_span then continue
-                               var tag = p.make_tag(hv)
+                               var tag = full_tag(p, hv)
                                if tag == null then continue
-                               var infobox = p.infobox(hv)
-                               if infobox != null then tag.attach_infobox(infobox)
                                stack2.add(html)
                                html.add tag
                                html = tag
@@ -120,17 +149,8 @@ class HighlightVisitor
                        if c isa TEol then 
                                html.append "\n"
                        else
-                               var tag = c.make_tag(hv)
-                               var pa = c.parent
-                               var infobox = null
-                               if c isa TId or c isa TClassid or c isa TAttrid or c isa TokenLiteral or c isa TokenOperator then
-                                       assert c != null
-                                       if pa != null then infobox = pa.decorate_tag(hv, tag, c)
-                               else if c isa TComment and pa isa ADoc then
-                                       infobox = pa.decorate_tag(hv, tag, c)
-                               end
-                               if infobox != null then tag.attach_infobox(infobox)
-                               html.add tag
+                               var tag = full_tag(c, hv)
+                               if tag != null then html.add tag
                        end
 
                        # Handle ending span productions
@@ -163,8 +183,8 @@ class HighlightVisitor
 
                        c = n
                end
-               assert stack.is_empty
-               assert stack2.is_empty
+               #assert stack.is_empty
+               #assert stack2.is_empty
        end
 
        # Return a default CSS content related to CSS classes used in the `html` tree.
@@ -329,6 +349,7 @@ redef class MModule
                return res
        end
 
+       # The module HTML page
        fun href: String
        do
                return name + ".html"
@@ -352,7 +373,7 @@ redef class MClassDef
                        res.new_field("class").text(mclass.name)
                else
                        res.new_field("redef class").text(mclass.name)
-                       res.new_field("intro").add mclass.intro.linkto_text("in {mclass.intro.mmodule.to_s}")
+                       res.new_field("intro").add mclass.intro.linkto_text("in {mclass.intro_mmodule.to_s}")
                end
                var mdoc = self.mdoc
                if mdoc == null then mdoc = mclass.intro.mdoc
@@ -386,6 +407,7 @@ redef class MClassDef
                return res
        end
 
+       # The class HTML page (an anchor in the module page)
        fun href: String
        do
                return mmodule.href + "#" + to_s
@@ -432,6 +454,7 @@ redef class MPropDef
                return res
        end
 
+       # The property HTML page (an anchor in the module page)
        fun href: String
        do
                return self.mclassdef.mmodule.href + "#" + self.to_s
@@ -505,6 +528,33 @@ redef class MNullableType
        end
 end
 
+redef class MNotNullType
+       redef fun infobox(v)
+       do
+               return mtype.infobox(v)
+       end
+       redef fun linkto
+       do
+               var res = new HTMLTag("span")
+               res.append("not null ").add(mtype.linkto)
+               return res
+       end
+end
+
+redef class MNullType
+       redef fun infobox(v)
+       do
+               var res = new HInfoBox(v, to_s)
+               return res
+       end
+       redef fun linkto
+       do
+               var res = new HTMLTag("span")
+               res.append("null")
+               return res
+       end
+end
+
 redef class MSignature
        redef fun linkto
        do
@@ -606,6 +656,7 @@ redef class AStdClassdef
        end
        redef fun decorate_tag(v, res, token)
        do
+               if not token isa TClassid then return null
                res.add_class("nc_def")
 
                var md = mclassdef
@@ -865,8 +916,8 @@ redef class AType
        do
                var mt = mtype
                if mt == null then return null
-               mt = mt.as_notnullable
-               if mt isa MVirtualType or mt isa MParameterType then
+               mt = mt.undecorate
+               if mt isa MFormalType then
                        res.add_class("nc_vt")
                end
                return mt.infobox(v)