src/tint/lang/wgsl/ast/transform/first_index_offset_fuzz.cc

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#include "src/tint/api/common/binding_point.h"
#include "src/tint/cmd/fuzz/wgsl/fuzz.h"
#include "src/tint/lang/wgsl/ast/module.h"
#include "src/tint/lang/wgsl/ast/transform/first_index_offset.h"
#include "src/tint/lang/wgsl/sem/variable.h"

namespace tint::ast::transform {
namespace {

bool CanRun(const Program& program, const FirstIndexOffset::BindingPoint& binding_point) {
    for (auto& global : program.AST().GlobalVariables()) {
        if (auto* sem = program.Sem().Get<sem::GlobalVariable>(global)) {
            if (sem->Attributes().binding_point ==
                BindingPoint{binding_point.group, binding_point.binding}) {
                // Might cause binding point collision
                return false;
            }
        }
    }
    return true;
}

void FirstIndexOffsetFuzzer(const Program& program,
                            const FirstIndexOffset::BindingPoint& binding_point) {
    if (!CanRun(program, binding_point)) {
        return;
    }

    DataMap inputs;
    inputs.Add<FirstIndexOffset::BindingPoint>(std::move(binding_point));

    DataMap outputs;
    if (auto result = FirstIndexOffset{}.Apply(program, inputs, outputs)) {
        if (!result->IsValid()) {
            TINT_ICE() << "FirstIndexOffset returned invalid program:\n" << result->Diagnostics();
        }
    }
}

}  // namespace
}  // namespace tint::ast::transform

TINT_WGSL_PROGRAM_FUZZER(tint::ast::transform::FirstIndexOffsetFuzzer);