org.jruby.runtime.Block.isGiven()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中org.jruby.runtime.Block.isGiven()方法的一些代码示例，展示了Block.isGiven()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Block.isGiven()方法的具体详情如下：
包路径：org.jruby.runtime.Block
类名称：Block
方法名：isGiven

Block.isGiven介绍

[英]Is the current block a real yield'able block instead a null one
[中]当前块是一个真正的可产出块，而不是一个空块吗

代码示例

代码示例来源：origin: bazelbuild/bazel

@JRubyMethod(name = "add_enum")
public IRubyObject addEnum(ThreadContext context, IRubyObject name, Block block) {
  RubyEnumDescriptor enumDef = (RubyEnumDescriptor) cEnumDescriptor.newInstance(context, Block.NULL_BLOCK);
  IRubyObject ctx = cEnumBuilderContext.newInstance(context, enumDef, Block.NULL_BLOCK);
  enumDef.setName(context, name);
  if (block.isGiven()) {
    if (block.arity() == Arity.ONE_ARGUMENT) {
      block.yield(context, ctx);
    } else {
      Binding binding = block.getBinding();
      binding.setSelf(ctx);
      block.yieldSpecific(context);
    }
  }
  this.pendingList.add(enumDef);
  return context.runtime.getNil();
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod
public static IRubyObject each_byte(final ThreadContext context, IRubyObject recv, final Block block) {
  if (!block.isGiven()) return enumeratorize(context.runtime, recv, "each_byte");
  IRubyObject bt;
  while ((bt = getc(context, recv)) != context.nil) {
    block.yield(context, bt);
  }
  return recv;
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(optional = 1)
public IRubyObject each_line(ThreadContext context, IRubyObject[] args, Block block) {
  if (!block.isGiven()) return RubyEnumerator.enumeratorize(context.runtime, this, "each_line", args);
  return each(context, args, block);
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(module = true)
public static IRubyObject yield_self(ThreadContext context, IRubyObject recv, Block block) {
  if (block.isGiven()) {
    return block.yield(context, recv);
  } else {
    SizeFn enumSizeFn = RubyArray.newArray(context.runtime, context.nil).enumLengthFn();
    return RubyEnumerator.enumeratorizeWithSize(context, recv, "yield_self", enumSizeFn);
  }
}

代码示例来源：origin: org.jruby/jruby-complete

/** rb_hash_delete
 *
 */
@JRubyMethod
public IRubyObject delete(ThreadContext context, IRubyObject key, Block block) {
  modify();
  final RubyHashEntry entry = internalDelete(key);
  if (entry != NO_ENTRY) return entry.value;
  if (block.isGiven()) return block.yield(context, key);
  return context.nil;
}

代码示例来源：origin: org.jruby/jruby-complete

/** rb_ary_cycle
 *
 */
@JRubyMethod(name = "cycle")
public IRubyObject cycle(ThreadContext context, Block block) {
  if (!block.isGiven()) return enumeratorizeWithSize(context, this, "cycle", cycleSizeFn(context));
  return cycleCommon(context, -1, block);
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod
public IRubyObject each_char(final ThreadContext context, final Block block) {
  if (!block.isGiven()) return enumeratorize(context.runtime, this, "each_char");
  IRubyObject c;
  while (!(c = getc(context)).isNil()) {
    block.yieldSpecific(context, c);
  }
  return this;
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(name = "each_line")
public IRubyObject each_line(ThreadContext context, Block block) {
  if (!block.isGiven()) return enumeratorize(context.runtime, this, "each_line");
  return each(context, block);
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod
public IRubyObject each(final ThreadContext context, Block block) {
  if ( ! block.isGiven() ) {
    return enumeratorizeWithSize(context, this, "each", enumSize());
  }
  for (IRubyObject elem : elementsOrdered()) block.yield(context, elem);
  return this;
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(rest = true, meta = true)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
  IRubyObject tcpServer = recv.callMethod(context, "new", args);
  if (!block.isGiven()) return tcpServer;
  try {
    return block.yield(context, tcpServer);
  } finally {
    tcpServer.callMethod(context, "close");
  }
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(name = "select!")
public IRubyObject select_bang(final ThreadContext context, final Block block) {
  if (block.isGiven()) return keep_ifCommon(context, block) ? this : context.nil;
  return enumeratorizeWithSize(context, this, "select!", enumSizeFn());
}

代码示例来源：origin: org.jruby/jruby-core

@JRubyMethod
public static IRubyObject each_byte(final ThreadContext context, IRubyObject recv, final Block block) {
  if (!block.isGiven()) return enumeratorize(context.runtime, recv, "each_byte");
  IRubyObject bt;
  while ((bt = getc(context, recv)) != context.nil) {
    block.yield(context, bt);
  }
  return recv;
}

代码示例来源：origin: bazelbuild/bazel

@JRubyMethod(name = "add_message")
public IRubyObject addMessage(ThreadContext context, IRubyObject name, Block block) {
  RubyDescriptor msgdef = (RubyDescriptor) cDescriptor.newInstance(context, Block.NULL_BLOCK);
  IRubyObject ctx = cMessageBuilderContext.newInstance(context, msgdef, this, Block.NULL_BLOCK);
  msgdef.setName(context, name);
  if (block.isGiven()) {
    if (block.arity() == Arity.ONE_ARGUMENT) {
      block.yield(context, ctx);
    } else {
      Binding binding = block.getBinding();
      binding.setSelf(ctx);
      block.yieldSpecific(context);
    }
  }
  this.pendingList.add(msgdef);
  return context.runtime.getNil();
}

代码示例来源：origin: org.jruby/jruby-complete

/** rb_str_upto_m
 *
 */
@JRubyMethod(name = "upto")
public final IRubyObject upto(ThreadContext context, IRubyObject end, Block block) {
  Ruby runtime = context.runtime;
  return block.isGiven() ? uptoCommon(context, end, false, block) : enumeratorize(runtime, this, "upto", end);
}

代码示例来源：origin: org.jruby/jruby-core

@JRubyMethod(module = true)
public static IRubyObject yield_self(ThreadContext context, IRubyObject recv, Block block) {
  if (block.isGiven()) {
    return block.yield(context, recv);
  } else {
    SizeFn enumSizeFn = RubyArray.newArray(context.runtime, context.nil).enumLengthFn();
    return RubyEnumerator.enumeratorizeWithSize(context, recv, "yield_self", enumSizeFn);
  }
}

代码示例来源：origin: org.kill-bill.billing/killbill-osgi-bundles-jruby

@JRubyMethod(rest = true, meta = true)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
  IRubyObject tcpServer = recv.callMethod(context, "new", args);
  if (!block.isGiven()) return tcpServer;
  try {
    return block.yield(context, tcpServer);
  } finally {
    tcpServer.callMethod(context, "close");
  }
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod(required = 1)
public IRubyObject each_with_object(final ThreadContext context, IRubyObject arg, Block block) {
  return block.isGiven() ? RubyEnumerable.each_with_objectCommon(context, this, block, arg) :
      enumeratorizeWithSize(context, this, "each_with_object", new IRubyObject[]{arg}, enumSizeFn(context));
}

代码示例来源：origin: org.jruby/jruby-complete

/** rb_ary_take_while
 *
 */
@JRubyMethod(name = "take_while")
public IRubyObject take_while(ThreadContext context, Block block) {
  Ruby runtime = context.runtime;
  if (!block.isGiven()) return enumeratorize(runtime, this, "take_while");
  int i = 0;
  for (; i < realLength; i++) {
    if (!block.yield(context, eltOk(i)).isTrue()) break;
  }
  return subseq(0, i);
}

代码示例来源：origin: org.jruby/jruby-complete

@JRubyMethod
public static IRubyObject detect(ThreadContext context, IRubyObject self, final Block block) {
  boolean blockGiven = block.isGiven();
  if (self instanceof RubyArray && blockGiven) return ((RubyArray) self).find(context, null, block);
  return block.isGiven() ? detectCommon(context, self, block) : enumeratorize(context.runtime, self, "detect");
}

代码示例来源：origin: org.jruby/jruby-core

@JRubyMethod
public IRubyObject each(final ThreadContext context, Block block) {
  if ( ! block.isGiven() ) {
    return enumeratorizeWithSize(context, this, "each", enumSize());
  }
  for (IRubyObject elem : elementsOrdered()) block.yield(context, elem);
  return this;
}

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