Disambiguator.

1 files changed, 177 insertions, 0 deletions

diff --git a/test/libjulia/Disambiguator.cpp b/test/libjulia/Disambiguator.cpp
new file mode 100644
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+++ b/test/libjulia/Disambiguator.cpp
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+/*
+    This file is part of solidity.
+
+    solidity is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    solidity is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @date 2017
+ * Unit tests for the iulia name disambiguator.
+ */
+
+#include <libsolidity/parsing/Scanner.h>
+
+#include <libsolidity/inlineasm/AsmParser.h>
+#include <libsolidity/inlineasm/AsmAnalysis.h>
+#include <libsolidity/inlineasm/AsmPrinter.h>
+
+#include <libsolidity/interface/ErrorReporter.h>
+#include <libsolidity/interface/SourceReferenceFormatter.h>
+
+#include <libjulia/optimiser/Disambiguator.h>
+
+#include <boost/test/unit_test.hpp>
+
+#include <string>
+#include <memory>
+
+using namespace std;
+using namespace dev::solidity::assembly;
+
+namespace dev
+{
+namespace solidity
+{
+namespace test
+{
+
+namespace
+{
+
+void printErrors(ErrorList const& _errors, Scanner const& _scanner)
+{
+	for (auto const& error: _errors)
+		SourceReferenceFormatter::printExceptionInformation(
+			cout,
+			*error,
+			(error->type() == Error::Type::Warning) ? "Warning" : "Error",
+			[&](std::string const&) -> Scanner const& { return _scanner; }
+		);
+}
+
+
+pair<shared_ptr<Block>, shared_ptr<AsmAnalysisInfo>> parse(string const& _source)
+{
+	ErrorList errors;
+	ErrorReporter errorReporter(errors);
+	auto scanner = make_shared<Scanner>(CharStream(_source), "");
+	auto parserResult = assembly::Parser(errorReporter, true).parse(scanner);
+	if (parserResult)
+	{
+		BOOST_REQUIRE(errorReporter.errors().empty());
+		auto analysisInfo = make_shared<assembly::AsmAnalysisInfo>();
+		assembly::AsmAnalyzer analyzer(*analysisInfo, errorReporter, true);
+		if (analyzer.analyze(*parserResult))
+		{
+			BOOST_REQUIRE(errorReporter.errors().empty());
+			return make_pair(parserResult, analysisInfo);
+		}
+	}
+	printErrors(errors, *scanner);
+	BOOST_FAIL("Invalid source.");
+
+	// Unreachable.
+	return {};
+}
+
+string disambiguate(string const& _source)
+{
+	auto result = parse(_source);
+	julia::Disambiguator disambiguator(*result.first, *result.second);
+	return assembly::AsmPrinter(true)(*disambiguator.run());
+}
+
+string format(string const& _source)
+{
+	return assembly::AsmPrinter(true)(*parse(_source).first);
+}
+
+}
+
+#define CHECK(_original, _expectation)\
+do\
+{\
+	BOOST_CHECK_EQUAL(disambiguate(_original), format(_expectation));\
+	BOOST_CHECK_EQUAL(disambiguate(_original), disambiguate(disambiguate(_original)));\
+}\
+while(false)
+
+BOOST_AUTO_TEST_SUITE(IuliaDisambiguator)
+
+BOOST_AUTO_TEST_CASE(smoke_test)
+{
+	CHECK("{ }", "{ }");
+}
+
+BOOST_AUTO_TEST_CASE(variables)
+{
+	CHECK(
+		"{ { let a:u256 } { let a:u256 } }",
+		"{ { let a:u256 } { let a_1:u256 } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(variables_clash)
+{
+	CHECK(
+		"{ { let a:u256 let a_1:u256 } { let a:u256 } }",
+		"{ { let a:u256 let a_1:u256 } { let a_2:u256 } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(variables_inside_functions)
+{
+	CHECK(
+		"{ { let c:u256 let b:u256 } function f(a:u256, c:u256) -> b:u256 { let x:u256 } { let a:u256 let x:u256 } }",
+		"{ { let c:u256 let b:u256 } function f(a:u256, c_1:u256) -> b_1:u256 { let x:u256 } { let a_1:u256 let x_1:u256 } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(function_call)
+{
+	CHECK(
+		"{ { let a:u256, b:u256, c:u256, d:u256, f:u256 } { function f(a:u256) -> c:u256, d:u256 { let b:u256, c_1:u256 := f(a) } } }",
+		"{ { let a:u256, b:u256, c:u256, d:u256, f:u256 } { function f_1(a_1:u256) -> c_1:u256, d_1:u256 { let b_1:u256, c_1_1:u256 := f_1(a_1) } } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(for_statement)
+{
+	CHECK(
+		"{ { let a:u256, b:u256 } { for { let a:u256 } a { a := a } { let b:u256 := a } } }",
+		"{ { let a:u256, b:u256 } { for { let a_1:u256 } a_1 { a_1 := a_1 } { let b_1:u256 := a_1 } } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(switch_statement)
+{
+	CHECK(
+		"{ { let a:u256, b:u256, c:u256 } { let a:u256 switch a case 0:u256 { let b:u256 := a } default { let c:u256 := a } } }",
+		"{ { let a:u256, b:u256, c:u256 } { let a_1:u256 switch a_1 case 0:u256 { let b_1:u256 := a_1 } default { let c_1:u256 := a_1 } } }"
+	);
+}
+
+BOOST_AUTO_TEST_CASE(if_statement)
+{
+	CHECK(
+		"{ { let a:u256, b:u256, c:u256 } { let a:bool if a { let b:bool := a } } }",
+		"{ { let a:u256, b:u256, c:u256 } { let a_1:bool if a_1 { let b_1:bool := a_1 } } }"
+	);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+
+}
+}
+} // end namespaces