struct-nesting-of-variable-names.html (3470B)
1 <!-- 2 Copyright (c) 2019 The Khronos Group Inc. 3 Use of this source code is governed by an MIT-style license that can be 4 found in the LICENSE.txt file. 5 --> 6 <!DOCTYPE html> 7 <html> 8 <head> 9 <meta charset="utf-8"> 10 <link rel="stylesheet" href="../../../resources/js-test-style.css" /> 11 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css" /> 12 <script src="../../../js/js-test-pre.js"></script> 13 <script src="../../../js/webgl-test-utils.js"></script> 14 <script src="../../../js/glsl-conformance-test.js"></script> 15 <title></title> 16 </head> 17 <body> 18 <div id="description"></div> 19 <div id="console"></div> 20 <script id="fragmentShader" type="text/something-not-javascript"> 21 precision mediump float; 22 struct S { $(outer_type) u; }; 23 void main() { 24 S S; // This is legal, 'S' as a typename is defined in another scope. 25 { 26 struct S { $(inner_type) a; }; // This is legal as well, 'S' is now defined as a variable name in an ancestor scope 27 S newvar; 28 newvar.a = $(initializer); 29 gl_FragColor = $(fragColor); 30 } 31 } 32 </script> 33 <script> 34 "use strict"; 35 description("This test verifies that defining a typename in a new scope when the typename is the name of a variable that hides a typename declaration succeeds for all combinations of GLSL types."); 36 var tests = []; 37 var wtu = WebGLTestUtils; 38 var typeInfo = [ 39 { Type: 'float', initializer: '1.0', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' }, 40 { Type: 'vec2', initializer: 'vec2(0.0, 1.0)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' }, 41 { Type: 'vec3', initializer: 'vec3(0.0, 1.0, 0.0)', fragColor: 'vec4(newvar.a, 1.0)' }, 42 { Type: 'vec4', initializer: 'vec4(0.0, 1.0, 0.0, 1.0)', fragColor: 'newvar.a' }, 43 { Type: 'int', initializer: '1', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' }, 44 { Type: 'ivec2', initializer: 'ivec2(0, 1)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' }, 45 { Type: 'ivec3', initializer: 'ivec3(0, 1, 0)', fragColor: 'vec4(newvar.a, 1.0)' }, 46 { Type: 'ivec4', initializer: 'ivec4(0, 1, 0, 1)', fragColor: 'vec4(newvar.a)' }, 47 { Type: 'bool', initializer: 'true', fragColor: 'vec4(0.0, newvar.a, 0.0, 1.0)' }, 48 { Type: 'bvec2', initializer: 'bvec2(false, true)', fragColor: 'vec4(newvar.a, 0.0, 1.0)' }, 49 { Type: 'bvec3', initializer: 'bvec3(false, true, false)', fragColor: 'vec4(newvar.a, 1.0)' }, 50 { Type: 'bvec4', initializer: 'bvec4(false,true,false,true)',fragColor: 'vec4(newvar.a)' }, 51 ]; 52 typeInfo.forEach(function (outerType) { 53 typeInfo.forEach(function (innerType) { 54 var replaceParams = { 55 outer_type: outerType.Type, 56 inner_type: innerType.Type, 57 // use the initializer and fragColor for the inner type. Its definition should override the variable name in the outerscope. 58 initializer: innerType.initializer, 59 fragColor: innerType.fragColor 60 }; 61 tests.push({ 62 fShaderSource: wtu.replaceParams(wtu.getScript('fragmentShader'), replaceParams), 63 passMsg: 'Outer struct type: ' + outerType.Type + ' inner struct type: ' + innerType.Type, 64 fShaderSuccess: true, 65 linkSuccess: true, 66 render: true 67 }); 68 }) 69 }) 70 GLSLConformanceTester.runTests(tests); 71 var successfullyParsed = true; 72 </script> 73 </body> 74 </html>