remove `namespace` key from generated code

src/generators/Generator.js

@@ -232,6 +232,7 @@ export default class Generator {
 
 		const imports = this.imports;
 		const computations = [];
+		let defaultExport = null;
 		const templateProperties = {};
 
 		if ( js ) {
@@ -251,7 +252,7 @@ export default class Generator {
 				}
 			}
 
-			const defaultExport = js.content.body.find( node => node.type === 'ExportDefaultDeclaration' );
+			defaultExport = js.content.body.find( node => node.type === 'ExportDefaultDeclaration' );
 
 			if ( defaultExport ) {
 				const finalNode = js.content.body[ js.content.body.length - 1 ];
@@ -319,6 +320,7 @@ export default class Generator {
 
 		return {
 			computations,
+			defaultExport,
 			templateProperties
 		};
 	}

src/generators/dom/index.js

@@ -3,6 +3,7 @@ import getBuilders from './utils/getBuilders.js';
 import CodeBuilder from '../../utils/CodeBuilder.js';
 import namespaces from '../../utils/namespaces.js';
 import processCss from '../shared/processCss.js';
+import removeObjectKey from '../../utils/removeObjectKey.js';
 import visitors from './visitors/index.js';
 import Generator from '../Generator.js';
 import * as shared from '../../shared/index.js';
@@ -162,7 +163,7 @@ export default function dom ( parsed, source, options, names ) {
 
 	const generator = new DomGenerator( parsed, source, name, names, visitors, options );
 
-	const { computations, templateProperties } = generator.parseJs();
+	const { computations, defaultExport, templateProperties } = generator.parseJs();
 
 	// Remove these after version 2
 	if ( templateProperties.onrender ) {
@@ -188,7 +189,7 @@ export default function dom ( parsed, source, options, names ) {
 		const ns = templateProperties.namespace.value.value;
 		namespace = namespaces[ ns ] || ns;
 
-		// TODO remove the namespace property from the generated code, it's unused past this point
+		removeObjectKey( generator.code, defaultExport.declaration, 'namespace' );
 	}
 
 	if ( templateProperties.components ) {

src/utils/removeObjectKey.js

@@ -0,0 +1,9 @@
+export default function removeObjectKey ( code, parsed, key ) {
+	if ( parsed.type !== 'ObjectExpression' ) return;
+	const properties = parsed.properties;
+	const index = properties.findIndex( property => property.key.type === 'Identifier' && property.key.name === key );
+	if ( index === -1 ) return;
+	const a = properties[ index ].start;
+	const b = index < properties.length - 1 ? properties[ index + 1 ].start : properties[ index ].end;
+	code.remove( a, b );
+}