blob: ff63a55df7bd0bd5edaeb96ca32b5615f2352157 [file] [log] [blame]
// Copyright 2021 The Dawn & Tint Authors
//
// 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.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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#include "src/tint/lang/wgsl/ast/transform/add_empty_entry_point.h"
#include <utility>
#include "src/tint/lang/wgsl/program/clone_context.h"
#include "src/tint/lang/wgsl/program/program_builder.h"
#include "src/tint/lang/wgsl/resolver/resolve.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::transform::AddEmptyEntryPoint);
using namespace tint::core::number_suffixes; // NOLINT
namespace tint::ast::transform {
namespace {
bool ShouldRun(const Program& program) {
for (auto* func : program.AST().Functions()) {
if (func->IsEntryPoint()) {
return false;
}
}
return true;
}
} // namespace
AddEmptyEntryPoint::AddEmptyEntryPoint() = default;
AddEmptyEntryPoint::~AddEmptyEntryPoint() = default;
Transform::ApplyResult AddEmptyEntryPoint::Apply(const Program& src,
const DataMap&,
DataMap&) const {
if (!ShouldRun(src)) {
return SkipTransform;
}
ProgramBuilder b;
program::CloneContext ctx{&b, &src, /* auto_clone_symbols */ true};
b.Func(b.Symbols().New("unused_entry_point"), {}, b.ty.void_(), {},
tint::Vector{
b.Stage(PipelineStage::kCompute),
b.WorkgroupSize(1_i),
});
ctx.Clone();
return resolver::Resolve(b);
}
} // namespace tint::ast::transform