本文整理汇总了C++中ParseNode::getArity方法的典型用法代码示例。如果您正苦于以下问题：C++ ParseNode::getArity方法的具体用法？C++ ParseNode::getArity怎么用？C++ ParseNode::getArity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类ParseNode的用法示例。
在下文中一共展示了ParseNode::getArity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: switch
/*
* This function assumes the cloned tree is for use in the same statement and
* binding context as the original tree.
*/
static ParseNode *
CloneParseTree(ParseNode *opn, Parser *parser)
{
TreeContext *tc = parser->tc;
JS_CHECK_RECURSION(tc->sc->context, return NULL);
ParseNode *pn = parser->new_<ParseNode>(opn->getKind(), opn->getOp(), opn->getArity(),
opn->pn_pos);
if (!pn)
return NULL;
pn->setInParens(opn->isInParens());
pn->setDefn(opn->isDefn());
pn->setUsed(opn->isUsed());
switch (pn->getArity()) {
#define NULLCHECK(e) JS_BEGIN_MACRO if (!(e)) return NULL; JS_END_MACRO
case PN_FUNC:
NULLCHECK(pn->pn_funbox =
parser->newFunctionBox(opn->pn_funbox->object, pn, tc, opn->pn_funbox->strictModeState));
NULLCHECK(pn->pn_body = CloneParseTree(opn->pn_body, parser));
pn->pn_cookie = opn->pn_cookie;
pn->pn_dflags = opn->pn_dflags;
pn->pn_blockid = opn->pn_blockid;
break;
case PN_LIST:
pn->makeEmpty();
for (ParseNode *opn2 = opn->pn_head; opn2; opn2 = opn2->pn_next) {
ParseNode *pn2;
NULLCHECK(pn2 = CloneParseTree(opn2, parser));
pn->append(pn2);
}
pn->pn_xflags = opn->pn_xflags;
break;
case PN_TERNARY:
NULLCHECK(pn->pn_kid1 = CloneParseTree(opn->pn_kid1, parser));
NULLCHECK(pn->pn_kid2 = CloneParseTree(opn->pn_kid2, parser));
NULLCHECK(pn->pn_kid3 = CloneParseTree(opn->pn_kid3, parser));
break;
case PN_BINARY:
NULLCHECK(pn->pn_left = CloneParseTree(opn->pn_left, parser));
if (opn->pn_right != opn->pn_left)
NULLCHECK(pn->pn_right = CloneParseTree(opn->pn_right, parser));
else
pn->pn_right = pn->pn_left;
pn->pn_pval = opn->pn_pval;
pn->pn_iflags = opn->pn_iflags;
break;
case PN_UNARY:
NULLCHECK(pn->pn_kid = CloneParseTree(opn->pn_kid, parser));
pn->pn_hidden = opn->pn_hidden;
break;
case PN_NAME:
// PN_NAME could mean several arms in pn_u, so copy the whole thing.
pn->pn_u = opn->pn_u;
if (opn->isUsed()) {
/*
* The old name is a use of its pn_lexdef. Make the clone also be a
* use of that definition.
*/
Definition *dn = pn->pn_lexdef;
pn->pn_link = dn->dn_uses;
dn->dn_uses = pn;
} else if (opn->pn_expr) {
NULLCHECK(pn->pn_expr = CloneParseTree(opn->pn_expr, parser));
/*
* If the old name is a definition, the new one has pn_defn set.
* Make the old name a use of the new node.
*/
if (opn->isDefn()) {
opn->setDefn(false);
LinkUseToDef(opn, (Definition *) pn);
}
}
break;
case PN_NAMESET:
pn->pn_names = opn->pn_names;
NULLCHECK(pn->pn_tree = CloneParseTree(opn->pn_tree, parser));
break;
case PN_NULLARY:
// Even PN_NULLARY may have data (xmlpi for E4X -- what a botch).
pn->pn_u = opn->pn_u;
break;
#undef NULLCHECK
}
//.........这里部分代码省略.........