C++ (Cpp) TokenStream::getHygieneの例

コード例 #1

ファイル: parse.cpp プロジェクト: spacekookie/mrustc

/// Parse an entire macro_rules! block into a format that exec.cpp can use
MacroRulesPtr Parse_MacroRules(TokenStream& lex)
{
    TRACE_FUNCTION_F("");

    Token tok;

    // Parse the patterns and replacements
    ::std::vector<MacroRule>    rules;
    while( GET_TOK(tok, lex) != TOK_EOF )
    {
        lex.putback(tok);

        rules.push_back( Parse_MacroRules_Var(lex) );
        if(GET_TOK(tok, lex) != TOK_SEMICOLON) {
            CHECK_TOK(tok, TOK_EOF);
            break;
        }
    }
    DEBUG("- " << rules.size() << " rules");

    ::std::vector<MacroRulesArm>    rule_arms;

    // Re-parse the patterns into a unified form
    for(auto& rule : rules)
    {
        MacroRulesArm   arm = MacroRulesArm( mv$(rule.m_pattern), mv$(rule.m_contents) );

        enumerate_names(arm.m_pattern,  arm.m_param_names);

        rule_arms.push_back( mv$(arm) );
    }

    auto rv = new MacroRules( );
    rv->m_hygiene = lex.getHygiene();
    rv->m_rules = mv$(rule_arms);

    return MacroRulesPtr(rv);
}