Check if the decorators are undefined in the export (#562)

Author: kevineaton

src/lib/converter/nodes/export.ts

@@ -25,21 +25,25 @@ export class ExportConverter extends ConverterNodeComponent<ts.ExportAssignment>
         }
         if (symbol) {
             const project = context.project;
-            symbol.declarations.forEach((declaration) => {
-                if (!declaration.symbol) {
-                    return;
-                }
-                const id = project.symbolMapping[context.getSymbolID(declaration.symbol)];
-                if (!id) {
-                    return;
-                }
-
-                const reflection = project.reflections[id];
-                if (node.isExportEquals && reflection instanceof DeclarationReflection) {
-                    (<DeclarationReflection> reflection).setFlag(ReflectionFlag.ExportAssignment, true);
-                }
-                markAsExported(reflection);
-            });
+            // if the symbol declarations are undefined due to an export, we skip it
+            // fixes https://github.com/TypeStrong/typedoc/issues/513
+            if (symbol.declarations) {
+                symbol.declarations.forEach((declaration) => {
+                    if (!declaration.symbol) {
+                        return;
+                    }
+                    const id = project.symbolMapping[context.getSymbolID(declaration.symbol)];
+                    if (!id) {
+                        return;
+                    }
+
+                    const reflection = project.reflections[id];
+                    if (node.isExportEquals && reflection instanceof DeclarationReflection) {
+                        (<DeclarationReflection> reflection).setFlag(ReflectionFlag.ExportAssignment, true);
+                    }
+                    markAsExported(reflection);
+                });
+            }
         }
 
         function markAsExported(reflection: Reflection) {

src/test/renderer/specs/classes/_default_export_.defaultexportedclass.html

@@ -74,7 +74,7 @@ <h1>Class DefaultExportedClass</h1>
 					<div class="lead">
 						<p>This class is exported via es6 export syntax.</p>
 					</div>
-					<pre><code><span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">DefaultExportedClass</span></span>
+					<pre><code><span class="hljs-builtin-name">export</span><span class="hljs-built_in"> default </span>class DefaultExportedClass
 </code></pre>
 				</div>
 			</section>