2016-02-22 01:13:41 +00:00
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/*
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2016-11-18 23:13:20 +00:00
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This file is part of solidity.
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2016-02-22 01:13:41 +00:00
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2016-11-18 23:13:20 +00:00
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solidity is free software: you can redistribute it and/or modify
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2016-02-22 01:13:41 +00:00
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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2016-11-18 23:13:20 +00:00
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solidity is distributed in the hope that it will be useful,
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2016-02-22 01:13:41 +00:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2016-11-18 23:13:20 +00:00
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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2016-02-22 01:13:41 +00:00
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2016
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* Unit tests for inline assembly.
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*/
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2017-02-17 15:04:42 +00:00
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#include "../TestHelper.h"
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2016-03-01 21:56:39 +00:00
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#include <libsolidity/inlineasm/AsmStack.h>
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2017-02-17 15:04:42 +00:00
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#include <libsolidity/parsing/Scanner.h>
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2016-02-22 01:13:41 +00:00
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#include <libsolidity/interface/Exceptions.h>
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#include <libsolidity/ast/AST.h>
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2017-02-17 15:04:42 +00:00
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#include <test/libsolidity/ErrorCheck.h>
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#include <libevmasm/Assembly.h>
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#include <boost/optional.hpp>
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2017-04-21 22:05:12 +00:00
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#include <boost/algorithm/string/replace.hpp>
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2017-02-17 15:04:42 +00:00
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#include <string>
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#include <memory>
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2016-02-22 01:13:41 +00:00
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using namespace std;
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namespace dev
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{
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namespace solidity
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{
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namespace test
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{
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namespace
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{
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2017-02-17 15:04:42 +00:00
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boost::optional<Error> parseAndReturnFirstError(string const& _source, bool _assemble = false, bool _allowWarnings = true)
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2016-02-22 01:13:41 +00:00
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{
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2016-03-01 21:56:39 +00:00
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assembly::InlineAssemblyStack stack;
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2017-02-17 15:04:42 +00:00
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bool success = false;
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2016-02-22 01:13:41 +00:00
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try
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{
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2017-02-17 15:04:42 +00:00
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success = stack.parse(std::make_shared<Scanner>(CharStream(_source)));
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if (success && _assemble)
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2016-03-01 21:56:39 +00:00
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stack.assemble();
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2016-02-22 01:13:41 +00:00
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}
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2017-02-20 10:57:50 +00:00
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catch (FatalError const&)
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2016-02-22 01:13:41 +00:00
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{
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2017-02-17 15:04:42 +00:00
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BOOST_FAIL("Fatal error leaked.");
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success = false;
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2016-02-22 01:13:41 +00:00
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}
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2017-02-17 15:04:42 +00:00
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if (!success)
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{
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2017-02-17 15:05:22 +00:00
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BOOST_REQUIRE_EQUAL(stack.errors().size(), 1);
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2017-02-17 15:04:42 +00:00
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return *stack.errors().front();
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}
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else
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{
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// If success is true, there might still be an error in the assembly stage.
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if (_allowWarnings && Error::containsOnlyWarnings(stack.errors()))
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return {};
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else if (!stack.errors().empty())
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{
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if (!_allowWarnings)
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BOOST_CHECK_EQUAL(stack.errors().size(), 1);
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return *stack.errors().front();
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}
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}
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return {};
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}
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2016-02-22 01:13:41 +00:00
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2017-02-17 15:04:42 +00:00
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bool successParse(std::string const& _source, bool _assemble = false, bool _allowWarnings = true)
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{
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return !parseAndReturnFirstError(_source, _assemble, _allowWarnings);
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2016-02-22 01:13:41 +00:00
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}
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2016-11-15 08:16:33 +00:00
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bool successAssemble(string const& _source, bool _allowWarnings = true)
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2016-03-01 21:56:39 +00:00
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{
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2016-11-15 08:16:33 +00:00
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return successParse(_source, true, _allowWarnings);
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2016-03-01 21:56:39 +00:00
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}
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2017-02-17 15:04:42 +00:00
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Error expectError(std::string const& _source, bool _assemble, bool _allowWarnings = false)
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{
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auto error = parseAndReturnFirstError(_source, _assemble, _allowWarnings);
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BOOST_REQUIRE(error);
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return *error;
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}
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2017-02-14 14:40:58 +00:00
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void parsePrintCompare(string const& _source)
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{
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assembly::InlineAssemblyStack stack;
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BOOST_REQUIRE(stack.parse(std::make_shared<Scanner>(CharStream(_source))));
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BOOST_REQUIRE(stack.errors().empty());
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BOOST_CHECK_EQUAL(stack.toString(), _source);
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}
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2016-02-22 01:13:41 +00:00
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}
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2017-02-17 15:04:42 +00:00
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#define CHECK_ERROR(text, assemble, typ, substring) \
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do \
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{ \
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Error err = expectError((text), (assemble), false); \
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BOOST_CHECK(err.type() == (Error::Type::typ)); \
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BOOST_CHECK(searchErrorMessage(err, (substring))); \
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} while(0)
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#define CHECK_PARSE_ERROR(text, type, substring) \
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CHECK_ERROR(text, false, type, substring)
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#define CHECK_ASSEMBLE_ERROR(text, type, substring) \
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CHECK_ERROR(text, true, type, substring)
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2016-02-22 01:13:41 +00:00
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BOOST_AUTO_TEST_SUITE(SolidityInlineAssembly)
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2017-02-14 14:40:58 +00:00
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BOOST_AUTO_TEST_SUITE(Parsing)
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2016-02-22 01:13:41 +00:00
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BOOST_AUTO_TEST_CASE(smoke_test)
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{
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BOOST_CHECK(successParse("{ }"));
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}
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BOOST_AUTO_TEST_CASE(simple_instructions)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ dup1 dup1 mul dup1 sub pop }"));
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2016-02-22 01:13:41 +00:00
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}
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2016-10-05 11:00:36 +00:00
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BOOST_AUTO_TEST_CASE(suicide_selfdestruct)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ 0x01 suicide 0x02 selfdestruct }"));
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2016-10-05 11:00:36 +00:00
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}
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2016-04-05 12:57:40 +00:00
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BOOST_AUTO_TEST_CASE(keywords)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ 1 2 byte 2 return address pop }"));
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2016-04-05 12:57:40 +00:00
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}
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2016-02-22 01:13:41 +00:00
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BOOST_AUTO_TEST_CASE(constants)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ 7 8 mul pop }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(vardecl)
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{
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BOOST_CHECK(successParse("{ let x := 7 }"));
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}
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2017-05-17 12:20:24 +00:00
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BOOST_AUTO_TEST_CASE(vardecl_bool)
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{
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CHECK_PARSE_ERROR("{ let x := true }", ParserError, "True and false are not valid literals.");
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CHECK_PARSE_ERROR("{ let x := false }", ParserError, "True and false are not valid literals.");
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}
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2016-02-22 01:13:41 +00:00
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BOOST_AUTO_TEST_CASE(assignment)
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{
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2017-02-17 15:05:22 +00:00
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BOOST_CHECK(successParse("{ let x := 2 7 8 add =: x }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(label)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ 7 abc: 8 eq abc jump pop }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(label_complex)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ 7 abc: 8 eq jump(abc) jumpi(eq(7, 8), abc) pop }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(functional)
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{
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2017-03-22 12:21:41 +00:00
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BOOST_CHECK(successParse("{ let x := 2 add(7, mul(6, x)) mul(7, 8) add =: x }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(functional_assignment)
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{
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2017-02-17 15:05:22 +00:00
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BOOST_CHECK(successParse("{ let x := 2 x := 7 }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(functional_assignment_complex)
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{
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2017-02-17 15:05:22 +00:00
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BOOST_CHECK(successParse("{ let x := 2 x := add(7, mul(6, x)) mul(7, 8) add }"));
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(vardecl_complex)
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{
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2017-02-17 15:05:22 +00:00
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BOOST_CHECK(successParse("{ let y := 2 let x := add(7, mul(6, y)) add mul(7, 8) }"));
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}
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BOOST_AUTO_TEST_CASE(variable_use_before_decl)
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{
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CHECK_PARSE_ERROR("{ x := 2 let x := 3 }", DeclarationError, "Variable x used before it was declared.");
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CHECK_PARSE_ERROR("{ let x := mul(2, x) }", DeclarationError, "Variable x used before it was declared.");
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2016-02-22 01:13:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(blocks)
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{
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BOOST_CHECK(successParse("{ let x := 7 { let y := 3 } { let z := 2 } }"));
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}
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2017-01-31 22:59:41 +00:00
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BOOST_AUTO_TEST_CASE(function_definitions)
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{
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2017-04-26 16:12:26 +00:00
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BOOST_CHECK(successParse("{ function f() { } function g(a) -> x { } }"));
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2017-01-31 22:59:41 +00:00
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}
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BOOST_AUTO_TEST_CASE(function_definitions_multiple_args)
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{
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2017-04-26 16:12:26 +00:00
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BOOST_CHECK(successParse("{ function f(a, d) { } function g(a, d) -> x, y { } }"));
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2017-01-31 22:59:41 +00:00
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}
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2017-02-01 20:20:21 +00:00
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BOOST_AUTO_TEST_CASE(function_calls)
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{
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2017-04-26 16:12:26 +00:00
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BOOST_CHECK(successParse("{ function f(a) -> b {} function g(a, b, c) {} function x() { g(1, 2, f(mul(2, 3))) x() } }"));
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2017-02-17 15:05:22 +00:00
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}
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BOOST_AUTO_TEST_CASE(opcode_for_functions)
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{
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CHECK_PARSE_ERROR("{ function gas() { } }", ParserError, "Cannot use instruction names for identifier names.");
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}
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BOOST_AUTO_TEST_CASE(opcode_for_function_args)
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{
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CHECK_PARSE_ERROR("{ function f(gas) { } }", ParserError, "Cannot use instruction names for identifier names.");
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2017-04-26 16:12:26 +00:00
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CHECK_PARSE_ERROR("{ function f() -> gas { } }", ParserError, "Cannot use instruction names for identifier names.");
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2017-02-17 15:05:22 +00:00
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}
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BOOST_AUTO_TEST_CASE(name_clashes)
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{
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CHECK_PARSE_ERROR("{ let g := 2 function g() { } }", DeclarationError, "Function name g already taken in this scope");
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}
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BOOST_AUTO_TEST_CASE(variable_access_cross_functions)
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{
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2017-03-22 12:21:41 +00:00
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CHECK_PARSE_ERROR("{ let x := 2 function g() { x pop } }", DeclarationError, "Identifier not found.");
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2017-02-01 20:20:21 +00:00
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}
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2017-02-14 14:40:58 +00:00
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BOOST_AUTO_TEST_SUITE_END()
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BOOST_AUTO_TEST_SUITE(Printing)
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BOOST_AUTO_TEST_CASE(print_smoke)
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{
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parsePrintCompare("{\n}");
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}
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BOOST_AUTO_TEST_CASE(print_instructions)
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{
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2017-03-22 12:21:41 +00:00
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parsePrintCompare("{\n 7\n 8\n mul\n dup10\n add\n pop\n}");
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2017-02-14 14:40:58 +00:00
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}
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BOOST_AUTO_TEST_CASE(print_subblock)
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{
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parsePrintCompare("{\n {\n dup4\n add\n }\n}");
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}
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BOOST_AUTO_TEST_CASE(print_functional)
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{
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2017-03-22 12:21:41 +00:00
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parsePrintCompare("{\n let x := mul(sload(0x12), 7)\n}");
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2017-02-14 14:40:58 +00:00
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}
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BOOST_AUTO_TEST_CASE(print_label)
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{
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parsePrintCompare("{\n loop:\n jump(loop)\n}");
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}
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BOOST_AUTO_TEST_CASE(print_assignments)
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{
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parsePrintCompare("{\n let x := mul(2, 3)\n 7\n =: x\n x := add(1, 2)\n}");
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}
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BOOST_AUTO_TEST_CASE(print_string_literals)
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{
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2017-03-22 12:21:41 +00:00
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parsePrintCompare("{\n \"\\n'\\xab\\x95\\\"\"\n pop\n}");
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2017-02-14 14:40:58 +00:00
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}
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2017-02-15 14:21:11 +00:00
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BOOST_AUTO_TEST_CASE(print_string_literal_unicode)
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{
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2017-03-22 12:21:41 +00:00
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string source = "{ let x := \"\\u1bac\" }";
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string parsed = "{\n let x := \"\\xe1\\xae\\xac\"\n}";
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2017-02-15 14:21:11 +00:00
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assembly::InlineAssemblyStack stack;
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BOOST_REQUIRE(stack.parse(std::make_shared<Scanner>(CharStream(source))));
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BOOST_REQUIRE(stack.errors().empty());
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BOOST_CHECK_EQUAL(stack.toString(), parsed);
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parsePrintCompare(parsed);
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}
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2017-02-14 15:08:33 +00:00
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BOOST_AUTO_TEST_CASE(function_definitions_multiple_args)
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{
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2017-04-26 16:12:26 +00:00
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parsePrintCompare("{\n function f(a, d)\n {\n mstore(a, d)\n }\n function g(a, d) -> x, y\n {\n }\n}");
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2017-02-14 15:08:33 +00:00
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}
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BOOST_AUTO_TEST_CASE(function_calls)
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{
|
2017-03-22 15:53:15 +00:00
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|
|
string source = R"({
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function y()
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|
{
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|
|
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}
|
2017-04-26 16:12:26 +00:00
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function f(a) -> b
|
2017-03-22 15:53:15 +00:00
|
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|
{
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|
|
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}
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|
function g(a, b, c)
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|
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{
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|
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|
}
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g(1, mul(2, address), f(mul(2, caller)))
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|
|
|
y()
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|
|
|
})";
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|
|
|
boost::replace_all(source, "\t", " ");
|
|
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|
parsePrintCompare(source);
|
2017-02-14 15:08:33 +00:00
|
|
|
}
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|
|
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|
2017-02-14 14:40:58 +00:00
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|
|
|
|
|
|
BOOST_AUTO_TEST_SUITE(Analysis)
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|
|
|
|
2016-03-01 21:56:39 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(string_literals)
|
|
|
|
{
|
|
|
|
BOOST_CHECK(successAssemble("{ let x := \"12345678901234567890123456789012\" }"));
|
|
|
|
}
|
|
|
|
|
|
|
|
BOOST_AUTO_TEST_CASE(oversize_string_literals)
|
|
|
|
{
|
2017-02-20 10:42:23 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ let x := \"123456789012345678901234567890123\" }", TypeError, "String literal too long");
|
2016-03-01 21:56:39 +00:00
|
|
|
}
|
|
|
|
|
2016-10-06 13:32:11 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(assignment_after_tag)
|
|
|
|
{
|
2017-03-22 12:21:41 +00:00
|
|
|
BOOST_CHECK(successParse("{ let x := 1 { 7 tag: =: x } }"));
|
2016-10-06 13:32:11 +00:00
|
|
|
}
|
|
|
|
|
2016-10-07 23:03:56 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(magic_variables)
|
|
|
|
{
|
2017-02-17 15:05:22 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ this pop }", DeclarationError, "Identifier not found");
|
|
|
|
CHECK_ASSEMBLE_ERROR("{ ecrecover pop }", DeclarationError, "Identifier not found");
|
2017-03-22 12:21:41 +00:00
|
|
|
BOOST_CHECK(successAssemble("{ let ecrecover := 1 ecrecover pop }"));
|
2016-10-07 23:03:56 +00:00
|
|
|
}
|
|
|
|
|
2017-04-11 17:24:38 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(stack_variables)
|
|
|
|
{
|
|
|
|
BOOST_CHECK(successAssemble("{ let y := 3 { 2 { let x := y } pop} }"));
|
|
|
|
}
|
|
|
|
|
2016-11-15 08:16:33 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(imbalanced_stack)
|
|
|
|
{
|
|
|
|
BOOST_CHECK(successAssemble("{ 1 2 mul pop }", false));
|
2017-03-22 12:21:41 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ 1 }", DeclarationError, "Unbalanced stack at the end of a block: 1 surplus item(s).");
|
|
|
|
CHECK_ASSEMBLE_ERROR("{ pop }", DeclarationError, "Unbalanced stack at the end of a block: 1 missing item(s).");
|
2016-11-15 08:16:33 +00:00
|
|
|
BOOST_CHECK(successAssemble("{ let x := 4 7 add }", false));
|
|
|
|
}
|
|
|
|
|
2016-10-20 11:30:10 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(error_tag)
|
|
|
|
{
|
2017-04-28 11:09:48 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ jump(invalidJumpLabel) }", DeclarationError, "Identifier not found");
|
2016-10-20 11:30:10 +00:00
|
|
|
}
|
|
|
|
|
2017-01-27 21:24:58 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(designated_invalid_instruction)
|
|
|
|
{
|
|
|
|
BOOST_CHECK(successAssemble("{ invalid }"));
|
|
|
|
}
|
|
|
|
|
2017-01-25 16:27:01 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(inline_assembly_shadowed_instruction_declaration)
|
2017-01-25 16:24:43 +00:00
|
|
|
{
|
2017-02-17 15:04:42 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ let gas := 1 }", ParserError, "Cannot use instruction names for identifier names.");
|
2017-01-25 16:24:43 +00:00
|
|
|
}
|
|
|
|
|
2017-01-25 16:27:01 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(inline_assembly_shadowed_instruction_assignment)
|
|
|
|
{
|
2017-02-17 15:04:42 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ 2 =: gas }", ParserError, "Identifier expected, got instruction name.");
|
2017-01-25 16:27:01 +00:00
|
|
|
}
|
|
|
|
|
2017-01-26 12:40:40 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(inline_assembly_shadowed_instruction_functional_assignment)
|
|
|
|
{
|
2017-02-17 15:04:42 +00:00
|
|
|
CHECK_ASSEMBLE_ERROR("{ gas := 2 }", ParserError, "Label name / variable name must precede \":\"");
|
2017-01-26 12:40:40 +00:00
|
|
|
}
|
|
|
|
|
2017-02-09 16:34:48 +00:00
|
|
|
BOOST_AUTO_TEST_CASE(revert)
|
|
|
|
{
|
|
|
|
BOOST_CHECK(successAssemble("{ revert(0, 0) }"));
|
|
|
|
}
|
|
|
|
|
2016-02-22 01:13:41 +00:00
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|
|
|
2017-02-14 14:40:58 +00:00
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|
|
|
2016-02-22 01:13:41 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
} // end namespaces
|