remove text nodes when removing iterations of each block (#62)

compiler/generate/visitors/MustacheTag.js

@@ -16,5 +16,11 @@ export default {
 		generator.current.updateStatements.push( deindent`
 			${name}.data = ${snippet};
 		` );
+
+		if ( generator.current.localElementDepth === 0 ) {
+			generator.current.teardownStatements.push( deindent`
+				if ( detach ) ${name}.parentNode.removeChild( ${name} );
+			` );
+		}
 	}
 };

compiler/generate/visitors/Text.js

@@ -15,7 +15,7 @@ export default {
 			` );
 
 			generator.current.teardownStatements.push( deindent`
-				${name}.parentNode.removeChild( ${name} );
+				if ( detach ) ${name}.parentNode.removeChild( ${name} );
 			` );
 		}
 	}

test/compiler/each-block-text-node/_config.js

@@ -0,0 +1,14 @@
+export default {
+	data: {
+		animals: [ 'alpaca', 'baboon', 'capybara' ]
+	},
+
+	html: '(alpaca)(baboon)(capybara)',
+
+	test ( assert, component, target ) {
+		component.set({ animals: [ 'caribou', 'dogfish' ] });
+		assert.htmlEqual( target.innerHTML, '(caribou)(dogfish)' );
+		component.set({ animals: [] });
+		assert.htmlEqual( target.innerHTML, '' );
+	}
+};

test/compiler/each-block-text-node/main.html

@@ -0,0 +1,3 @@
+{{#each animals as animal}}
+	({{animal}})
+{{/each}}