From 06b145649996dc7c0bcd31dad82867c5783ba877 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Wed, 20 Nov 2013 11:03:53 +0100
Subject: [PATCH] Improve type checking in ol.renderer.webgl.Layer

---
 src/ol/renderer/webgl/webgllayerrenderer.js | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/ol/renderer/webgl/webgllayerrenderer.js b/src/ol/renderer/webgl/webgllayerrenderer.js
index f99258937b..73395f96dc 100644
--- a/src/ol/renderer/webgl/webgllayerrenderer.js
+++ b/src/ol/renderer/webgl/webgllayerrenderer.js
@@ -124,12 +124,18 @@ ol.renderer.webgl.Layer.prototype.bindFramebuffer =
       this.framebufferDimension != framebufferDimension) {
 
     frameState.postRenderFunctions.push(
-        goog.partial(function(gl, framebuffer, texture) {
-          if (!gl.isContextLost()) {
-            gl.deleteFramebuffer(framebuffer);
-            gl.deleteTexture(texture);
-          }
-        }, gl, this.framebuffer, this.texture));
+        goog.partial(
+            /**
+             * @param {WebGLRenderingContext} gl GL.
+             * @param {WebGLFramebuffer} framebuffer Framebuffer.
+             * @param {WebGLTexture} texture Texture.
+             */
+            function(gl, framebuffer, texture) {
+              if (!gl.isContextLost()) {
+                gl.deleteFramebuffer(framebuffer);
+                gl.deleteTexture(texture);
+              }
+            }, gl, this.framebuffer, this.texture));
 
     var texture = gl.createTexture();
     gl.bindTexture(goog.webgl.TEXTURE_2D, texture);