本文整理汇总了Java中jdk.nashorn.internal.ir.Symbol.clearFlag方法的典型用法代码示例。如果您正苦于以下问题：Java Symbol.clearFlag方法的具体用法？Java Symbol.clearFlag怎么用？Java Symbol.clearFlag使用的例子？那么恭喜您, 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jdk.nashorn.internal.ir.Symbol的用法示例。
在下文中一共展示了Symbol.clearFlag方法的3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Java代码示例。
示例1: enterCatchNode
import jdk.nashorn.internal.ir.Symbol; //导入方法依赖的package包/类
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
final IdentNode exception = catchNode.getException();
final Block block = lc.getCurrentBlock();
start(catchNode);
// define block-local exception variable
final String exname = exception.getName();
// If the name of the exception starts with ":e", this is a synthetic catch block, likely a catch-all. Its
// symbol is naturally internal, and should be treated as such.
final boolean isInternal = exname.startsWith(EXCEPTION_PREFIX.symbolName());
// IS_LET flag is required to make sure symbol is not visible outside catch block. However, we need to
// clear the IS_LET flag after creation to allow redefinition of symbol inside the catch block.
final Symbol symbol = defineSymbol(block, exname, catchNode, IS_VAR | IS_LET | (isInternal ? IS_INTERNAL : 0) | HAS_OBJECT_VALUE);
symbol.clearFlag(IS_LET);
return true;
}
示例2: removeUnusedSlots
import jdk.nashorn.internal.ir.Symbol; //导入方法依赖的package包/类
/**
* Checks if various symbols that were provisionally marked as needing a slot ended up unused, and marks them as not
* needing a slot after all.
* @param functionNode the function node
* @return the passed in node, for easy chaining
*/
private static FunctionNode removeUnusedSlots(final FunctionNode functionNode) {
if (!functionNode.needsCallee()) {
functionNode.compilerConstant(CALLEE).setNeedsSlot(false);
}
if (!(functionNode.hasScopeBlock() || functionNode.needsParentScope())) {
functionNode.compilerConstant(SCOPE).setNeedsSlot(false);
}
// Named function expressions that end up not referencing themselves won't need a local slot for the self symbol.
if(functionNode.isNamedFunctionExpression() && !functionNode.usesSelfSymbol()) {
final Symbol selfSymbol = functionNode.getBody().getExistingSymbol(functionNode.getIdent().getName());
if(selfSymbol != null && selfSymbol.isFunctionSelf()) {
selfSymbol.setNeedsSlot(false);
selfSymbol.clearFlag(Symbol.IS_VAR);
}
}
return functionNode;
}
示例3: enterCatchNode
import jdk.nashorn.internal.ir.Symbol; //导入方法依赖的package包/类
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
final IdentNode exception = catchNode.getExceptionIdentifier();
final Block block = lc.getCurrentBlock();
start(catchNode);
// define block-local exception variable
final String exname = exception.getName();
// If the name of the exception starts with ":e", this is a synthetic catch block, likely a catch-all. Its
// symbol is naturally internal, and should be treated as such.
final boolean isInternal = exname.startsWith(EXCEPTION_PREFIX.symbolName());
// IS_LET flag is required to make sure symbol is not visible outside catch block. However, we need to
// clear the IS_LET flag after creation to allow redefinition of symbol inside the catch block.
final Symbol symbol = defineSymbol(block, exname, catchNode, IS_VAR | IS_LET | (isInternal ? IS_INTERNAL : 0) | HAS_OBJECT_VALUE);
symbol.clearFlag(IS_LET);
return true;
}