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C++ EnumDeclaration::toChars方法代码示例

本文整理汇总了C++中EnumDeclaration::toChars方法的典型用法代码示例。如果您正苦于以下问题:C++ EnumDeclaration::toChars方法的具体用法?C++ EnumDeclaration::toChars怎么用?C++ EnumDeclaration::toChars使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在EnumDeclaration的用法示例。


在下文中一共展示了EnumDeclaration::toChars方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: semantic

void EnumDeclaration::semantic(Scope *sc)
{
    uinteger_t number;
    Type *t;
    Scope *sce;

    //printf("EnumDeclaration::semantic(sd = %p, '%s')\n", sc->scopesym, sc->scopesym->toChars());
    if (!memtype)
        memtype = Type::tint32;

    if (symtab)                 // if already done
    {   if (isdone || !scope)
            return;             // semantic() already completed
    }
    else
        symtab = new DsymbolTable();

    Scope *scx = NULL;
    if (scope)
    {   sc = scope;
        scx = scope;            // save so we don't make redundant copies
        scope = NULL;
    }

    unsigned dprogress_save = Module::dprogress;

    if (sc->stc & STCdeprecated)
        isdeprecated = 1;

    parent = sc->scopesym;
    memtype = memtype->semantic(loc, sc);

    /* Check to see if memtype is forward referenced
     */
    if (memtype->ty == Tenum)
    {   EnumDeclaration *sym = (EnumDeclaration *)memtype->toDsymbol(sc);
        if (!sym->memtype)
        {
            error("base enum %s is forward referenced", sym->toChars());
            memtype = Type::tint32;
        }
    }

    if (!memtype->isintegral())
    {   error("base type must be of integral type, not %s", memtype->toChars());
        memtype = Type::tint32;
    }

    isdone = 1;
    Module::dprogress++;

    t = isAnonymous() ? memtype : type;
    symtab = new DsymbolTable();
    sce = sc->push(this);
    sce->parent = this;
    number = 0;
    if (!members)               // enum ident;
        return;
    if (members->dim == 0)
        error("enum %s must have at least one member", toChars());
    int first = 1;
    for (size_t i = 0; i < members->dim; i++)
    {
        EnumMember *em = ((Dsymbol *)members->data[i])->isEnumMember();
        Expression *e;

        if (!em)
            /* The e->semantic(sce) can insert other symbols, such as
             * template instances and function literals.
             */
            continue;

        //printf("Enum member '%s'\n",em->toChars());
        e = em->value;
        if (e)
        {
            assert(e->dyncast() == DYNCAST_EXPRESSION);
            e = e->semantic(sce);
            e = e->optimize(WANTvalue);
            // Need to copy it because we're going to change the type
            e = e->copy();
            e = e->implicitCastTo(sc, memtype);
            e = e->optimize(WANTvalue);
            number = e->toInteger();
            e->type = t;
        }
        else
        {   // Default is the previous number plus 1

            // Check for overflow
            if (!first)
            {
                switch (t->toBasetype()->ty)
                {
                    case Tbool:
                        if (number == 2)        goto Loverflow;
                        break;

                    case Tint8:
                        if (number == 128) goto Loverflow;
//.........这里部分代码省略.........
开发者ID:alekseysidorov,项目名称:ldc,代码行数:101,代码来源:enum.c


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