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+<!--
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL GLSL Conformance Tests - Reserved Words</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
+<script src="../../../js/js-test-pre.js"></script>
+<script src="../../../js/webgl-test-utils.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script id="vertexShader0" type="text/something-not-javascript">
+struct $replaceMe {
+  vec4 $replaceMe;
+};
+struct Foo {
+  $replaceMe $replaceMe;
+};
+attribute vec4 position;
+void main()
+{
+    Foo f;
+    f.$replaceMe.$replaceMe = position;
+    gl_Position = f.$replaceMe.$replaceMe;
+}
+</script>
+<script id="fragmentShader0" type="text/something-not-javascript">
+precision mediump float;
+vec4 $replaceMe() {
+    return vec4(0,1,0,1);
+}
+void main()
+{
+    gl_FragColor = $replaceMe();
+}
+</script>
+<script id="vertexShader1" type="text/something-not-javascript">
+attribute vec4 $replaceMe;
+void main()
+{
+    gl_Position = $replaceMe;
+}
+</script>
+<script id="fragmentShader1" type="text/something-not-javascript">
+precision mediump float;
+vec4 foo(vec4 $replaceMe) {
+  return $replaceMe;
+}
+void main()
+{
+    gl_FragColor = foo(vec4(1,0,1,1));
+}
+</script>
+<script id="vertexShader2" type="text/something-not-javascript">
+varying vec4 $replaceMe;
+attribute vec4 position;
+void main()
+{
+    gl_Position = position;
+    $replaceMe = position;
+}
+</script>
+<script id="fragmentShader2" type="text/something-not-javascript">
+precision mediump float;
+varying vec4 $replaceMe;
+void main()
+{
+    gl_FragColor = $replaceMe;
+}
+</script>
+<script id="vertexShader3" type="text/something-not-javascript">
+attribute vec4 position;
+void main()
+{
+    gl_Position = position;
+}
+</script>
+<script id="fragmentShader3" type="text/something-not-javascript">
+precision mediump float;
+uniform vec4 $replaceMe;
+void main()
+{
+    gl_FragColor = $replaceMe;
+}
+</script>
+<script>
+"use strict";
+var GLSL_1_0_17_words = [
+  "attribute",
+  "const",
+  "uniform",
+  "varying",
+  "break",
+  "continue",
+  "do",
+  "for",
+  "while",
+  "if",
+  "else",
+  "in",
+  "out",
+  "inout",
+  "float",
+  "int",
+  "void",
+  "bool",
+  "true",
+  "false",
+  "lowp",
+  "mediump",
+  "highp",
+  "precision",
+  "invariant",
+  "discard",
+  "return",
+  "mat2",
+  "mat3",
+  "mat4",
+  "vec2",
+  "vec3",
+  "vec4",
+  "ivec2",
+  "ivec3",
+  "ivec4",
+  "bvec2",
+  "bvec3",
+  "bvec4",
+  "sampler2D",
+  "samplerCube",
+  "struct"
+]
+
+var GLSL_1_0_17_FutureWords = [
+  "asm",
+  "class",
+  "union",
+  "enum",
+  "typedef",
+  "template",
+  "this",
+  "packed",
+  "goto",
+  "switch",
+  "default",
+  "inline",
+  "noinline",
+  "volatile",
+  "public",
+  "static",
+  "extern",
+  "external",
+  "interface",
+  "flat",
+  "long",
+  "short",
+  "double",
+  "half",
+  "fixed",
+  "unsigned",
+  "superp",
+  "input",
+  "output",
+  "hvec2",
+  "hvec3",
+  "hvec4",
+  "dvec2",
+  "dvec3",
+  "dvec4",
+  "fvec2",
+  "fvec3",
+  "fvec4",
+  "sampler1D",
+  "sampler3D",
+  "sampler1DShadow",
+  "sampler2DShadow",
+  "sampler2DRect",
+  "sampler3DRect",
+  "sampler2DRectShadow",
+  "sizeof",
+  "cast",
+  "namespace",
+  "using",
+  "__foo",      // something that has 2 underscores
+  "foo__bar",   // something that has 2 underscores
+  "gl_foo",     // something that starts with gl_
+  "webgl_foo"   // something that starts with webgl_
+];
+
+description();
+
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext();
+
+var reservedWordsLists = [
+  GLSL_1_0_17_words,
+  GLSL_1_0_17_FutureWords
+];
+
+var reservedWords = [];
+for (var ii = 0; ii < reservedWordsLists.length; ++ii) {
+  var list = reservedWordsLists[ii];
+  for (var jj = 0; jj < list.length; ++jj) {
+    reservedWords.push(list[jj]);
+  }
+}
+
+var src = [];
+for (var ii = 0; ii < 4; ++ii) {
+  var vsrc = document.getElementById("vertexShader" + ii).text;
+  var fsrc = document.getElementById("fragmentShader" + ii).text;
+  src.push({vsrc: vsrc, fsrc: fsrc});
+}
+
+var wordNdx = 0;
+
+function testNextWord() {
+  if (wordNdx >= reservedWords.length) {
+    finishTest();
+    return;
+  }
+  testWord(reservedWords[wordNdx]);
+  ++wordNdx;
+  setTimeout(testNextWord, 0);
+}
+testNextWord();
+
+function testWord(word) {
+  debug("");
+  debug("testing: " + word);
+
+  for (var ii = 0; ii < src.length; ++ii) {
+    var vs = src[ii].vsrc.replace(/\$replaceMe/g, word);
+    var fs = src[ii].fsrc.replace(/\$replaceMe/g, word);
+
+    var success = true;
+    var program = wtu.loadProgram(gl, vs, fs, function(msg) {
+      //debug(msg);
+      success = false;
+    }, true);
+    if (success) {
+      testFailed("shader with: '" + word + "' compiled even though it should not");
+    } else {
+      testPassed("shader with: '" + word + "' correctly failed to compile");
+    }
+    if (program) {
+      gl.deleteProgram(program);
+    }
+    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no GL errors");
+  }
+}
+
+var successfullyParsed = true;
+</script>
+</body>
+</html>