close #254 supports multiple class inheritance

2 files changed, 36 insertions, 33 deletions

diff --git a/script/core/diagnostics/circle-doc-class.lua b/script/core/diagnostics/circle-doc-class.lua
index 7ef76603..f3721fd9 100644
--- a/script/core/diagnostics/circle-doc-class.lua
+++ b/script/core/diagnostics/circle-doc-class.lua
@@ -28,21 +28,23 @@ return function (uri, callback)
                     goto CONTINUE
                 end
                 if current.extends then
-                    local newName = current.extends[1]
-                    if newName == myName then
-                        callback {
-                            start   = doc.start,
-                            finish  = doc.finish,
-                            message = lang.script('DIAG_CIRCLE_DOC_CLASS', myName)
-                        }
-                        goto CONTINUE
-                    end
-                    if not mark[newName] then
-                        mark[newName] = true
-                        local docs = vm.getDocTypes(newName)
-                        for _, otherDoc in ipairs(docs) do
-                            if otherDoc.type == 'doc.class.name' then
-                                list[#list+1] = otherDoc.parent
+                    for _, extend in ipairs(current.extends) do
+                        local newName = extend[1]
+                        if newName == myName then
+                            callback {
+                                start   = doc.start,
+                                finish  = doc.finish,
+                                message = lang.script('DIAG_CIRCLE_DOC_CLASS', myName)
+                            }
+                            goto CONTINUE
+                        end
+                        if not mark[newName] then
+                            mark[newName] = true
+                            local docs = vm.getDocTypes(newName)
+                            for _, otherDoc in ipairs(docs) do
+                                if otherDoc.type == 'doc.class.name' then
+                                    list[#list+1] = otherDoc.parent
+                                end
                             end
                         end
                     end
diff --git a/script/core/diagnostics/undefined-doc-class.lua b/script/core/diagnostics/undefined-doc-class.lua
index 8e0be20a..7d23971a 100644
--- a/script/core/diagnostics/undefined-doc-class.lua
+++ b/script/core/diagnostics/undefined-doc-class.lua
@@ -20,28 +20,29 @@ return function (uri, callback)
     }
     for _, doc in ipairs(state.ast.docs) do
         if doc.type == 'doc.class' then
-            local ext = doc.extends
-            if not ext then
+            if not doc.extends then
                 goto CONTINUE
             end
-            local name = ext[1]
-            local docs = vm.getDocTypes(name)
-            if cache[name] == nil then
-                cache[name] = false
-                for _, otherDoc in ipairs(docs) do
-                    if otherDoc.type == 'doc.class.name' then
-                        cache[name] = true
-                        break
+            for _, ext in ipairs(doc.extends) do
+                local name = ext[1]
+                local docs = vm.getDocTypes(name)
+                if cache[name] == nil then
+                    cache[name] = false
+                    for _, otherDoc in ipairs(docs) do
+                        if otherDoc.type == 'doc.class.name' then
+                            cache[name] = true
+                            break
+                        end
                     end
                 end
-            end
-            if not cache[name] then
-                callback {
-                    start   = ext.start,
-                    finish  = ext.finish,
-                    related = cache,
-                    message = lang.script('DIAG_UNDEFINED_DOC_CLASS', name)
-                }
+                if not cache[name] then
+                    callback {
+                        start   = ext.start,
+                        finish  = ext.finish,
+                        related = cache,
+                        message = lang.script('DIAG_UNDEFINED_DOC_CLASS', name)
+                    }
+                end
             end
         end
         ::CONTINUE::