diff options
Diffstat (limited to 'libsolidity/parsing/Parser.cpp')
| -rw-r--r-- | libsolidity/parsing/Parser.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libsolidity/parsing/Parser.cpp b/libsolidity/parsing/Parser.cpp index 9de2146e..bcb28988 100644 --- a/libsolidity/parsing/Parser.cpp +++ b/libsolidity/parsing/Parser.cpp @@ -22,6 +22,8 @@ #include <libsolidity/parsing/Parser.h> +#include <libsolidity/analysis/SemVerHandler.h> +#include <libsolidity/interface/Version.h> #include <libyul/AsmParser.h> #include <libyul/backends/evm/EVMDialect.h> #include <liblangutil/ErrorReporter.h> @@ -106,6 +108,20 @@ ASTPointer<SourceUnit> Parser::parse(shared_ptr<Scanner> const& _scanner) } } +void Parser::parsePragmaVersion(vector<Token> const& tokens, vector<string> const& literals) +{ + SemVerMatchExpressionParser parser(tokens, literals); + auto matchExpression = parser.parse(); + static SemVerVersion const currentVersion{string(VersionString)}; + // FIXME: only match for major version incompatibility + if (!matchExpression.matches(currentVersion)) + fatalParserError( + "Source file requires different compiler version (current compiler is " + + string(VersionString) + " - note that nightly builds are considered to be " + "strictly less than the released version" + ); +} + ASTPointer<PragmaDirective> Parser::parsePragmaDirective() { RecursionGuard recursionGuard(*this); @@ -134,6 +150,15 @@ ASTPointer<PragmaDirective> Parser::parsePragmaDirective() while (m_scanner->currentToken() != Token::Semicolon && m_scanner->currentToken() != Token::EOS); nodeFactory.markEndPosition(); expectToken(Token::Semicolon); + + if (literals.size() >= 2 && literals[0] == "solidity") + { + parsePragmaVersion( + vector<Token>(tokens.begin() + 1, tokens.end()), + vector<string>(literals.begin() + 1, literals.end()) + ); + } + return nodeFactory.createNode<PragmaDirective>(tokens, literals); } |