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solidity/test/liblangutil/Scanner.cpp
chriseth ffc5cfd9a5 Remove scanner from compiler stack.
2021-08-03 15:43:17 +02:00

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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/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Unit tests for the solidity scanner.
*/
#include <liblangutil/Scanner.h>
#include <boost/test/unit_test.hpp>
using namespace std;
using namespace solidity::langutil;
namespace solidity::langutil::test
{
BOOST_AUTO_TEST_SUITE(ScannerTest)
BOOST_AUTO_TEST_CASE(test_empty)
{
CharStream stream{};
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(smoke_test)
{
CharStream stream("function break;765 \t \"string1\",'string2'\nidentifier1", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Break);
BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "765");
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "string1");
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "string2");
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "identifier1");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(assembly_assign)
{
CharStream stream("let a := 1", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Let);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssemblyAssign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "1");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(assembly_multiple_assign)
{
CharStream stream("let a, b, c := 1", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Let);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssemblyAssign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "1");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(string_printable)
{
for (unsigned v = 0x20; v < 0x7e; v++) {
string lit{static_cast<char>(v)};
// Escape \ and " (since we are quoting with ")
if (v == '\\' || v == '"')
lit = string{'\\'} + lit;
CharStream stream(" { \"" + lit + "\"", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), string{static_cast<char>(v)});
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
// Special case of unescaped " for strings quoted with '
CharStream stream(" { '\"'", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "\"");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(string_nonprintable)
{
for (unsigned v = 0; v < 0xff; v++) {
// Skip the valid ones
if (v >= 0x20 && v <= 0x7e)
continue;
string lit{static_cast<char>(v)};
CharStream stream(" { \"" + lit + "\"", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
if (v == '\n' || v == '\v' || v == '\f' || v == '\r')
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalStringEndQuote);
else
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalCharacterInString);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
}
}
BOOST_AUTO_TEST_CASE(string_escapes)
{
CharStream stream(" { \"a\\x61\"", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "aa");
}
BOOST_AUTO_TEST_CASE(string_escapes_all)
{
CharStream stream(" { \"a\\x61\\n\\r\\t\"", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "aa\n\r\t");
}
struct TestScanner
{
unique_ptr<CharStream> stream;
unique_ptr<Scanner> scanner;
explicit TestScanner(string _text) { reset(move(_text)); }
void reset(std::string _text)
{
stream = make_unique<CharStream>(move(_text), "");
scanner = make_unique<Scanner>(*stream);
}
decltype(auto) currentToken() { return scanner->currentToken(); }
decltype(auto) next() { return scanner->next(); }
decltype(auto) currentError() { return scanner->currentError(); }
decltype(auto) currentLiteral() { return scanner->currentLiteral(); }
decltype(auto) currentCommentLiteral() { return scanner->currentCommentLiteral(); }
decltype(auto) currentLocation() { return scanner->currentLocation(); }
};
BOOST_AUTO_TEST_CASE(string_escapes_legal_before_080)
{
TestScanner scanner(" { \"a\\b");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalEscapeSequence);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
scanner.reset(" { \"a\\f");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalEscapeSequence);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
scanner.reset(" { \"a\\v");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalEscapeSequence);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(string_escapes_with_zero)
{
TestScanner scanner(" { \"a\\x61\\x00abc\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("aa\0abc", 6));
}
BOOST_AUTO_TEST_CASE(string_escape_illegal)
{
CharStream stream(" bla \"\\x6rf\" (illegalescape)", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalEscapeSequence);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "");
// TODO recovery from illegal tokens should be improved
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(hex_numbers)
{
TestScanner scanner("var x = 0x765432536763762734623472346;");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Var);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Assign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "0x765432536763762734623472346");
BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("0x1234");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "0x1234");
scanner.reset("0X1234");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
}
BOOST_AUTO_TEST_CASE(octal_numbers)
{
TestScanner scanner("07");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
scanner.reset("007");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
scanner.reset("-07");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
scanner.reset("-.07");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
scanner.reset("0");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
scanner.reset("0.1");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
}
BOOST_AUTO_TEST_CASE(scientific_notation)
{
CharStream stream("var x = 2e10;", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Var);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Assign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "2e10");
BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_dot_in_identifier)
{
TestScanner scanner("function .a(");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("function .a(");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(middle_dot_in_identifier)
{
TestScanner scanner("function a..a(");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("function a...a(");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(trailing_dot_in_identifier)
{
TestScanner scanner("function a.(");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("function a.(");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(trailing_dot_in_numbers)
{
TestScanner scanner("2.5");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("2.5e10");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(".5");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(".5e10");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("2.");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_underscore_decimal_is_identifier)
{
// Actual error is cought by SyntaxChecker.
CharStream stream("_1.2", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_underscore_decimal_after_dot_illegal)
{
// Actual error is cought by SyntaxChecker.
TestScanner scanner("1._2");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("1._");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_underscore_exp_are_identifier)
{
// Actual error is cought by SyntaxChecker.
CharStream stream("_1e2", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_underscore_exp_after_e_illegal)
{
// Actual error is cought by SyntaxChecker.
CharStream stream("1e_2", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "1e_2");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(leading_underscore_hex_illegal)
{
CharStream stream("0x_abc", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(fixed_number_invalid_underscore_front)
{
// Actual error is cought by SyntaxChecker.
CharStream stream("12._1234_1234", "");
Scanner scanner(stream);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(number_literals_with_trailing_underscore_at_eos)
{
// Actual error is cought by SyntaxChecker.
TestScanner scanner("0x123_");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("123_");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("12.34_");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(negative_numbers)
{
TestScanner scanner("var x = -.2 + -0x78 + -7.3 + 8.9 + 2e-2;");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Var);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Assign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), ".2");
BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "0x78");
BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "7.3");
BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "8.9");
BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "2e-2");
BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(locations)
{
TestScanner scanner("function_identifier has ; -0x743/*comment*/\n ident //comment");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLocation().start, 0);
BOOST_CHECK_EQUAL(scanner.currentLocation().end, 19);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLocation().start, 20);
BOOST_CHECK_EQUAL(scanner.currentLocation().end, 23);
BOOST_CHECK_EQUAL(scanner.next(), Token::Semicolon);
BOOST_CHECK_EQUAL(scanner.currentLocation().start, 24);
BOOST_CHECK_EQUAL(scanner.currentLocation().end, 25);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLocation().start, 27);
BOOST_CHECK_EQUAL(scanner.currentLocation().end, 32);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLocation().start, 45);
BOOST_CHECK_EQUAL(scanner.currentLocation().end, 50);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(ambiguities)
{
// test scanning of some operators which need look-ahead
TestScanner scanner("<=" "<" "+ +=a++ =>" "<<" ">>" " >>=" ">>>" ">>>=" " >>>>>=><<=");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LessThanOrEqual);
BOOST_CHECK_EQUAL(scanner.next(), Token::LessThan);
BOOST_CHECK_EQUAL(scanner.next(), Token::Add);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssignAdd);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Inc);
BOOST_CHECK_EQUAL(scanner.next(), Token::DoubleArrow);
BOOST_CHECK_EQUAL(scanner.next(), Token::SHL);
BOOST_CHECK_EQUAL(scanner.next(), Token::SAR);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssignSar);
BOOST_CHECK_EQUAL(scanner.next(), Token::SHR);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssignShr);
// the last "monster" token combination
BOOST_CHECK_EQUAL(scanner.next(), Token::SHR);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssignSar);
BOOST_CHECK_EQUAL(scanner.next(), Token::GreaterThan);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssignShl);
}
BOOST_AUTO_TEST_CASE(documentation_comments_parsed_begin)
{
TestScanner scanner("/// Send $(value / 1000) chocolates to the user");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(multiline_documentation_comments_parsed_begin)
{
TestScanner scanner("/** Send $(value / 1000) chocolates to the user*/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(documentation_comments_parsed)
{
TestScanner scanner("some other tokens /// Send $(value / 1000) chocolates to the user");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(multiline_documentation_comments_parsed)
{
TestScanner scanner("some other tokens /**\n"
"* Send $(value / 1000) chocolates to the user\n"
"*/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), " Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(multiline_documentation_no_stars)
{
TestScanner scanner("some other tokens /**\n"
" Send $(value / 1000) chocolates to the user\n"
"*/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(multiline_documentation_whitespace_hell)
{
TestScanner scanner("some other tokens /** \t \r \n"
"\t \r * Send $(value / 1000) chocolates to the user\n"
"*/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), " Send $(value / 1000) chocolates to the user");
}
BOOST_AUTO_TEST_CASE(comment_before_eos)
{
TestScanner scanner("//");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(documentation_comment_before_eos)
{
TestScanner scanner("///");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(empty_multiline_comment)
{
TestScanner scanner("/**/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(empty_multiline_documentation_comment_before_eos)
{
TestScanner scanner("/***/");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(comments_mixed_in_sequence)
{
TestScanner scanner("hello_world ///documentation comment \n"
"//simple comment \n"
"<<");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::SHL);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "documentation comment ");
}
BOOST_AUTO_TEST_CASE(ether_subdenominations)
{
TestScanner scanner("wei gwei ether");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::SubWei);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubGwei);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubEther);
}
BOOST_AUTO_TEST_CASE(time_subdenominations)
{
TestScanner scanner("seconds minutes hours days weeks years");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::SubSecond);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubMinute);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubHour);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubDay);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubWeek);
BOOST_CHECK_EQUAL(scanner.next(), Token::SubYear);
}
BOOST_AUTO_TEST_CASE(empty_comment)
{
TestScanner scanner("//\ncontract{}");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Contract);
BOOST_CHECK_EQUAL(scanner.next(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::RBrace);
}
// Unicode string escapes
BOOST_AUTO_TEST_CASE(valid_unicode_string_escape)
{
TestScanner scanner("{ \"\\u00DAnicode\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xC3\x9Anicode", 8));
}
BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_7f)
{
TestScanner scanner("{ \"\\u007Fnicode\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\x7Fnicode", 7));
}
BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_7ff)
{
TestScanner scanner("{ \"\\u07FFnicode\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xDF\xBFnicode", 8));
}
BOOST_AUTO_TEST_CASE(valid_unicode_string_escape_ffff)
{
TestScanner scanner("{ \"\\uFFFFnicode\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\xEF\xBF\xBFnicode", 9));
}
BOOST_AUTO_TEST_CASE(invalid_short_unicode_string_escape)
{
TestScanner scanner("{ \"\\uFFnicode\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
}
// Unicode string literal
BOOST_AUTO_TEST_CASE(unicode_prefix_only)
{
TestScanner scanner("{ unicode");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset("{ unicode");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "unicode");
}
BOOST_AUTO_TEST_CASE(unicode_invalid_space)
{
TestScanner scanner("{ unicode ");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
}
BOOST_AUTO_TEST_CASE(unicode_invalid_token)
{
TestScanner scanner("{ unicode test");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset("{ unicode test");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "unicode");
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "test");
}
BOOST_AUTO_TEST_CASE(valid_unicode_literal)
{
TestScanner scanner("{ unicode\"Hello 😃\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::UnicodeStringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("Hello \xf0\x9f\x98\x83", 10));
}
BOOST_AUTO_TEST_CASE(valid_nonprintable_in_unicode_literal)
{
// Non-printable characters are allowed in unicode strings...
TestScanner scanner("{ unicode\"Hello \007😃\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::UnicodeStringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("Hello \x07\xf0\x9f\x98\x83", 11));
}
// Hex string literal
BOOST_AUTO_TEST_CASE(hex_prefix_only)
{
TestScanner scanner("{ hex");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset("{ hex");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
}
BOOST_AUTO_TEST_CASE(hex_invalid_space)
{
TestScanner scanner("{ hex ");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
}
BOOST_AUTO_TEST_CASE(hex_invalid_token)
{
TestScanner scanner("{ hex test");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset("{ hex test");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
}
BOOST_AUTO_TEST_CASE(valid_hex_literal)
{
TestScanner scanner("{ hex\"00112233FF\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::HexStringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), std::string("\x00\x11\x22\x33\xFF", 5));
}
BOOST_AUTO_TEST_CASE(invalid_short_hex_literal)
{
TestScanner scanner("{ hex\"00112233F\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalHexString);
}
BOOST_AUTO_TEST_CASE(invalid_hex_literal_with_space)
{
TestScanner scanner("{ hex\"00112233FF \"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalHexString);
}
BOOST_AUTO_TEST_CASE(invalid_hex_literal_with_wrong_quotes)
{
TestScanner scanner("{ hex\"00112233FF'");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalHexString);
}
BOOST_AUTO_TEST_CASE(invalid_hex_literal_nonhex_string)
{
TestScanner scanner("{ hex\"hello\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalHexString);
}
// Comments
BOOST_AUTO_TEST_CASE(invalid_multiline_comment_close)
{
// This used to parse as "comment", "identifier"
TestScanner scanner("/** / x");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(multiline_doc_comment_at_eos)
{
// This used to parse as "whitespace"
TestScanner scanner("/**");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(multiline_comment_at_eos)
{
TestScanner scanner("/*");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(regular_line_break_in_single_line_comment)
{
for (auto const& nl: {"\r", "\n", "\r\n"})
{
TestScanner scanner("// abc " + string(nl) + " def ");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(irregular_line_breaks_in_single_line_comment)
{
for (auto const& nl: {"\v", "\f", "\xE2\x80\xA8", "\xE2\x80\xA9"})
{
TestScanner scanner("// abc " + string(nl) + " def ");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
for (size_t i = 0; i < string(nl).size() - 1; i++)
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(regular_line_breaks_in_single_line_doc_comment)
{
for (auto const& nl: {"\r", "\n", "\r\n"})
{
TestScanner scanner("/// abc " + string(nl) + " def ");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "abc ");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(regular_line_breaks_in_multiline_doc_comment)
{
// Test CR, LF, CRLF as line valid terminators for code comments.
// Any accepted non-LF is being canonicalized to LF.
for (auto const& nl : {"\r"s, "\n"s, "\r\n"s})
{
TestScanner scanner{"/// Hello" + nl + "/// World" + nl + "ident"};
auto const& lit = scanner.currentCommentLiteral();
BOOST_CHECK_EQUAL(lit, "Hello\n World");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "Hello\n World");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "ident");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(irregular_line_breaks_in_single_line_doc_comment)
{
for (auto const& nl: {"\v", "\f", "\xE2\x80\xA8", "\xE2\x80\xA9"})
{
TestScanner scanner("/// abc " + string(nl) + " def ");
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "abc ");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
for (size_t i = 0; i < string(nl).size() - 1; i++)
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(regular_line_breaks_in_strings)
{
for (auto const& nl: {"\r"s, "\n"s, "\r\n"s})
{
TestScanner scanner("\"abc " + nl + " def\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(irregular_line_breaks_in_strings)
{
for (auto const& nl: {"\v", "\f", "\xE2\x80\xA8", "\xE2\x80\xA9"})
{
TestScanner scanner("\"abc " + string(nl) + " def\"");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
for (size_t i = 0; i < string(nl).size(); i++)
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "def");
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
}
BOOST_AUTO_TEST_CASE(solidity_keywords)
{
// These are tokens which have a different meaning in Yul.
string keywords = "return byte bool address var in true false leave switch case default";
TestScanner scanner(keywords);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Return);
BOOST_CHECK_EQUAL(scanner.next(), Token::Byte);
BOOST_CHECK_EQUAL(scanner.next(), Token::Bool);
BOOST_CHECK_EQUAL(scanner.next(), Token::Address);
BOOST_CHECK_EQUAL(scanner.next(), Token::Var);
BOOST_CHECK_EQUAL(scanner.next(), Token::In);
BOOST_CHECK_EQUAL(scanner.next(), Token::TrueLiteral);
BOOST_CHECK_EQUAL(scanner.next(), Token::FalseLiteral);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Switch);
BOOST_CHECK_EQUAL(scanner.next(), Token::Case);
BOOST_CHECK_EQUAL(scanner.next(), Token::Default);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(keywords);
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::TrueLiteral);
BOOST_CHECK_EQUAL(scanner.next(), Token::FalseLiteral);
BOOST_CHECK_EQUAL(scanner.next(), Token::Leave);
BOOST_CHECK_EQUAL(scanner.next(), Token::Switch);
BOOST_CHECK_EQUAL(scanner.next(), Token::Case);
BOOST_CHECK_EQUAL(scanner.next(), Token::Default);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(yul_keyword_like)
{
TestScanner scanner("leave.function");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("leave.function");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(yul_identifier_with_dots)
{
TestScanner scanner("mystorage.slot := 1");
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Period);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssemblyAssign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset("mystorage.slot := 1");
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::AssemblyAssign);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(yul_function)
{
string sig = "function f(a, b) -> x, y";
TestScanner scanner(sig);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::RParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::RightArrow);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(sig);
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::RParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::RightArrow);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(yul_function_with_whitespace)
{
string sig = "function f (a, b) - > x, y";
TestScanner scanner(sig);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::RParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::GreaterThan);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(sig);
scanner.scanner->setScannerMode(ScannerKind::Yul);
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Function);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::LParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::RParen);
BOOST_CHECK_EQUAL(scanner.next(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::GreaterThan);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::Comma);
BOOST_CHECK_EQUAL(scanner.next(), Token::Identifier);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_SUITE_END()
} // end namespaces
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