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// unit-test-translation-unit-import.cpp
#include "slang.h"
#include <stdio.h>
#include <stdlib.h>
#include "tools/unit-test/slang-unit-test.h"
#include "slang-com-ptr.h"
#include "../../source/core/slang-io.h"
#include "../../source/core/slang-process.h"
using namespace Slang;
// Test that the API supports discovering previously checked translation unit in the same
// FrontEndCompileRequest.
SLANG_UNIT_TEST(translationUnitImport)
{
// Source for the first translation unit.
const char* generatedSource =
"public int f() {"
" return 5;"
"};";
// Source for the a file that imports the first translation unit.
// The import should succeed and `f` should be visible to this module.
const char* fileSource =
R"(
import generatedUnit;
public int g(){ return f(); }
)";
// Source for a module that transitively uses the generated source via a file.
const char* userSourceBody = R"(
[shader("compute")]
[numthreads(4,1,1)]
void computeMain(
uint3 sv_dispatchThreadID : SV_DispatchThreadID,
uniform RWStructuredBuffer<int> buffer)
{
buffer[sv_dispatchThreadID.x] = g();
})";
auto moduleName = "moduleG" + String(Process::getId());
String userSource = "import " + moduleName + ";\n" + userSourceBody;
auto session = spCreateSession();
auto request = spCreateCompileRequest(session);
File::writeAllText(moduleName + ".slang", fileSource);
spAddCodeGenTarget(request, SLANG_HLSL);
int generatedTranslationUnitIndex = spAddTranslationUnit(request, SLANG_SOURCE_LANGUAGE_SLANG, "generatedUnit");
spAddTranslationUnitSourceString(
request, generatedTranslationUnitIndex, "generatedFile", generatedSource);
int entryPointTranslationUnitIndex = spAddTranslationUnit(request, SLANG_SOURCE_LANGUAGE_SLANG, "userUnit");
spAddTranslationUnitSourceString(
request, entryPointTranslationUnitIndex, "userFile", userSource.getUnownedSlice().begin());
spAddEntryPoint(request, entryPointTranslationUnitIndex, "computeMain", SLANG_STAGE_COMPUTE);
auto compileResult = spCompile(request);
SLANG_CHECK(compileResult == SLANG_OK);
Slang::ComPtr<ISlangBlob> outBlob;
spGetEntryPointCodeBlob(request, 0, 0, outBlob.writeRef());
SLANG_CHECK(outBlob && outBlob->getBufferSize() != 0);
spDestroyCompileRequest(request);
spDestroySession(session);
File::remove(moduleName + ".slang");
}
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