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solidity/test/liblangutil/Scanner.cpp
Alex Beregszaszi 66ee3ec533 Remove the \b, \f, \v escape sequences from the Scanner
2020-12-07 21:10:03 +00:00

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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)
{
Scanner scanner(CharStream{});
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(smoke_test)
{
Scanner scanner(CharStream("function break;765 \t \"string1\",'string2'\nidentifier1", ""));
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)
{
Scanner scanner(CharStream("let a := 1", ""));
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)
{
Scanner scanner(CharStream("let a, b, c := 1", ""));
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;
Scanner scanner(CharStream(" { \"" + lit + "\"", ""));
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 '
Scanner scanner(CharStream(" { '\"'", ""));
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)};
Scanner scanner(CharStream(" { \"" + lit + "\"", ""));
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)
{
Scanner scanner(CharStream(" { \"a\\x61\"", ""));
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)
{
Scanner scanner(CharStream(" { \"a\\x61\\n\\r\\t\"", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::StringLiteral);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "aa\n\r\t");
}
BOOST_AUTO_TEST_CASE(string_escapes_legal_before_080)
{
Scanner scanner(CharStream(" { \"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(CharStream(" { \"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(CharStream(" { \"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)
{
Scanner scanner(CharStream(" { \"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)
{
Scanner scanner(CharStream(" bla \"\\x6rf\" (illegalescape)", ""));
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)
{
Scanner scanner(CharStream("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(CharStream("0x1234", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.currentLiteral(), "0x1234");
scanner.reset(CharStream("0X1234", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
}
BOOST_AUTO_TEST_CASE(octal_numbers)
{
Scanner scanner(CharStream("07", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
scanner.reset(CharStream("007", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
scanner.reset(CharStream("-07", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
scanner.reset(CharStream("-.07", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Sub);
BOOST_CHECK_EQUAL(scanner.next(), Token::Number);
scanner.reset(CharStream("0", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
scanner.reset(CharStream("0.1", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
}
BOOST_AUTO_TEST_CASE(scientific_notation)
{
Scanner scanner(CharStream("var x = 2e10;", ""));
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)
{
Scanner scanner(CharStream("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(CharStream("function .a(", ""));
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)
{
Scanner scanner(CharStream("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(CharStream("function a...a(", ""));
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)
{
Scanner scanner(CharStream("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(CharStream("function a.(", ""));
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)
{
Scanner scanner(CharStream("2.5", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream("2.5e10", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream(".5", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream(".5e10", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream("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.
Scanner scanner(CharStream("_1.2", ""));
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.
Scanner scanner(CharStream("1._2", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream("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.
Scanner scanner(CharStream("_1e2", ""));
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.
Scanner scanner(CharStream("1e_2", ""));
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)
{
Scanner scanner(CharStream("0x_abc", ""));
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.
Scanner scanner(CharStream("12._1234_1234", ""));
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.
Scanner scanner(CharStream("0x123_", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream("123_", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
scanner.reset(CharStream("12.34_", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Number);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(negative_numbers)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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
Scanner scanner(CharStream("<=" "<" "+ +=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)
{
Scanner scanner(CharStream("/// 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)
{
Scanner scanner(CharStream("/** 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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("//", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(documentation_comment_before_eos)
{
Scanner scanner(CharStream("///", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(empty_multiline_comment)
{
Scanner scanner(CharStream("/**/", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(empty_multiline_documentation_comment_before_eos)
{
Scanner scanner(CharStream("/***/", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::EOS);
BOOST_CHECK_EQUAL(scanner.currentCommentLiteral(), "");
}
BOOST_AUTO_TEST_CASE(comments_mixed_in_sequence)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("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)
{
Scanner scanner(CharStream("//\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)
{
Scanner scanner(CharStream("{ \"\\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)
{
Scanner scanner(CharStream("{ \"\\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)
{
Scanner scanner(CharStream("{ \"\\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)
{
Scanner scanner(CharStream("{ \"\\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)
{
Scanner scanner(CharStream("{ \"\\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)
{
Scanner scanner(CharStream("{ unicode", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset(CharStream("{ unicode", ""));
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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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(CharStream("{ unicode test", ""));
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)
{
Scanner scanner(CharStream("{ 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...
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ hex", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::LBrace);
BOOST_CHECK_EQUAL(scanner.next(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.currentError(), ScannerError::IllegalToken);
scanner.reset(CharStream("{ hex", ""));
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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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(CharStream("{ hex test", ""));
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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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)
{
Scanner scanner(CharStream("{ 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"
Scanner scanner(CharStream("/** / 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"
Scanner scanner(CharStream("/**", ""));
BOOST_CHECK_EQUAL(scanner.currentToken(), Token::Illegal);
BOOST_CHECK_EQUAL(scanner.next(), Token::EOS);
}
BOOST_AUTO_TEST_CASE(multiline_comment_at_eos)
{
Scanner scanner(CharStream("/*", ""));
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"})
{
Scanner scanner(CharStream("// 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"})
{
Scanner scanner(CharStream("// 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"})
{
Scanner scanner(CharStream("/// 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})
{
Scanner scanner{CharStream{"/// 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"})
{
Scanner scanner(CharStream("/// 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})
{
Scanner scanner(CharStream("\"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"})
{
Scanner scanner(CharStream("\"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";
Scanner scanner(CharStream(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(CharStream(keywords, ""));
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)
{
Scanner scanner(CharStream("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(CharStream("leave.function", ""));
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)
{
Scanner scanner(CharStream("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(CharStream("mystorage.slot := 1", ""));
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";
Scanner scanner(CharStream(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(CharStream(sig, ""));
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";
Scanner scanner(CharStream(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(CharStream(sig, ""));
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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