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/*
* Copyright (c) 2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ASTStringDumper.h"
#include "AST.h"
#include "Parser.h"
#include "TestWGSLAPI.h"
#include "WGSLShaderModule.h"
namespace TestWGSLAPI {
static String toString(WGSL::ShaderModule& shaderModule)
{
WGSL::AST::StringDumper dumper;
dumper.visit(shaderModule);
return dumper.toString();
}
TEST(WGSLASTDumperTests, dumpTriangleVert)
{
auto source =
"@vertex\n"
"fn main(\n"
" @builtin(vertex_index) VertexIndex : u32\n"
") -> @builtin(position) vec4<f32> {\n"
" var pos = array<vec2<f32>, 3>(\n"
" vec2<f32>(0.0, 0.5),\n"
" vec2<f32>(-0.5, -0.5),\n"
" vec2<f32>(0.5, -0.5)\n"
" );\n\n"
" return vec4<f32>(pos[VertexIndex], 0.0, 1.0);\n"
"}\n"_s;
WGSL::ShaderModule shader(source, { 8 });
auto maybeError = WGSL::parse(shader);
EXPECT_FALSE(maybeError.has_value());
EXPECT_EQ(
toString(shader),
"@vertex\n"
"fn main(\n"
" @builtin(vertex_index) VertexIndex: u32\n"
") -> @builtin(position) vec4<f32>\n"
"{\n"
" var pos = array<vec2<f32>, 3>(vec2<f32>(0.000000, 0.500000), vec2<f32>(-0.500000, -0.500000), vec2<f32>(0.500000, -0.500000));\n"
" return vec4<f32>(pos[VertexIndex], 0.000000, 1.000000);\n"
"}\n\n"_str);
}
} // namespace TestWGSLAPI
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