Ship support for decorators in source code at parsing level

packages/webdoc-parser/src/symbols-babel/build-symbol-tree.js

@@ -134,7 +134,7 @@ export default function buildSymbolTree(
   file: string,
   source: SourceFile,
   config: LanguageConfig,
-  plugins: string[],
+  plugins: Array<string | [string, any]>,
 ): Symbol {
   const moduleSymbol = SymbolUtils.createModuleSymbol();
   let ast;

packages/webdoc-parser/src/symbols-babel/index.js

@@ -16,6 +16,7 @@ const defaultPreset = [
   "classPrivateMethods",
   "classPrivateProperties",
   "classProperties",
+  ["decorators", {decoratorsBeforeExport: true}],
   "doExpressions",
   "dynamicImport",
   "exportDefaultFrom",

packages/webdoc-parser/test/lang-js.js

@@ -123,4 +123,17 @@ describe("@webdoc/parser.LanguageIntegration{@lang js}", function() {
       `),
     ).to.not.throw();
   });
+
+  it("should work with decorators", function() {
+    const symtree = buildSymbolTree(`
+      class DecoratorGarden {
+        @decorator({ withParam: 'some-value' })
+        decorated() {
+
+        }
+      }
+    `);
+
+    expect(symtree.members[0].members.length).to.equal(1);
+  });
 });

packages/webdoc-parser/test/lang-ts.js

@@ -146,4 +146,17 @@ describe("@webdoc/parser.LanguageIntegration{@lang ts}", function() {
     expect(specializedArrayBufferImpl.meta.implements[0]).to.equal("Special.IArrayBuffer");
     expect(specializedArrayBufferImpl.meta.extends[0]).to.equal("Special.ArrayBuffer");
   });
+
+  it("should work with decorators", function() {
+    const symtree = buildSymbolTree(`
+      class DecoratorGarden {
+        @decorator({ withParam: 'some-value' })
+        decorated() {
+
+        }
+      }
+    `, "*.ts");
+
+    expect(symtree.members[0].members.length).to.equal(1);
+  });
 });