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Created: Tue, Jul 7, 8:10 AM

externc.cpp
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	#include "gtest/gtest.h"
	#include "passmanager.h"
	#include "Scanner.h"
	#include "Parser.h"
	#include <iostream>
	#include <llvm/Support/DynamicLibrary.h>

	using namespace std;

	TEST(InterfaceExternC, testAST){
	std::string code = " \
	interface(extern-c){ \
	xml2 = library:: pkgconfig(\"libxml-2.0\"). \
	\
	include { \
	xml2 = [\"libxml/tree.h\"] \
	}. \
	} \
	";

	Scanner scanner(reinterpret_cast<const unsigned char*>(code.c_str()), code.size());
	Parser parser(&scanner);
	parser.Parse();

	ASSERT_EQ(1, parser.root.__externdata.size());

	for (const ExternEntry& lib: parser.root.__externdata){
	ASSERT_EQ("libxml-2.0", lib.package);
	ASSERT_EQ(1, lib.headers.size());
	ASSERT_EQ("libxml/tree.h", lib.headers.at(0));
	}
	}

	TEST(InterfaceExternC, testfetchPackageHeaders){
	ExternEntry entry{"libxml-2.0", {}};

	vector<string> args = ExternLayer::fetchPackageFlags(entry);
	ASSERT_EQ(1, args.size());
	ASSERT_EQ("-I/usr/include/libxml2", args.at(0));
	}

	TEST(InterfaceExternC, testfetchPackageLibs){
	ExternEntry entry{"libxml-2.0", {}};

	vector<string> args = ExternLayer::fetchPackageLibs(entry);
	ASSERT_EQ(1, args.size());
	ASSERT_EQ("xml2", args.at(0));
	}

	TEST(InterfaceExternC, testLoadLib){
	std::string msgErr;
	if (!llvm::sys::DynamicLibrary::LoadLibraryPermanently("-lpcre -lxml2", &msgErr)){
	cout << msgErr;
	ASSERT_EQ("", msgErr);
	}

	ASSERT_TRUE(true);
	}

	TEST(InterfaceExternC, testBSD1){
	std::string code = " \n\
	interface(extern-c){ \n\
	libbsd = library:: pkgconfig(\"libbsd\"). \n\
	\n\
	include { \n\
	libbsd = [\"bsd/stdlib.h\"] \n\
	}. \n\
	}\n"
	"main= function():: int; entry{arc4random() }";

	std::unique_ptr<PassManager> program(PassManager::prepareForCode(move(code)));

	void* entryPtr = program->run();
	int (entry)() = (int ()())(intptr_t)entryPtr;

	int answer = 24;
	answer = entry();
	cout << answer;
	ASSERT_NE(24, answer);
	}

	TEST(InterfaceExternC, testStructFields1){
	FILE* input = fopen("scripts/testspass/Containers_Implementation_LinkedList1.xreate","r");
	assert(input != nullptr);

	Scanner scanner(input);
	Parser parser(&scanner);
	parser.Parse();

	AST& ast = parser.root;
	CodeScope* body = ast.findFunction("test")->getEntryScope();

	Symbol symbTree = body->findSymbol("tree");

	const TypeAnnotation& tTree = CodeScope::findDeclaration(symbTree).type;
	const ExpandedType& t2Tree = ast.expandType(tTree);
	LLVMLayer llvm(&ast);
	TypeUtils utils(&llvm);

	std::vector<std::string>fields = utils.getStructFields(t2Tree);

	auto field = std::find(fields.begin(), fields.end(), "children");
	ASSERT_TRUE(field != fields.end());
	}

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