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package org.jruby.ext.jruby;
import java.util.Map;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.ExecutionContext;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
@JRubyClass(name = "JRuby::FiberLocal")
public final class JRubyFiberLocal extends JRubyExecutionContextLocal {
public static final ObjectAllocator ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass type) {
return new JRubyFiberLocal(runtime, type);
}
};
public JRubyFiberLocal(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(name = "with_value", required = 1)
public IRubyObject withValue(ThreadContext context, IRubyObject value, Block block) {
final Map<Object, IRubyObject> contextVariables;
contextVariables = getContextVariables(context);
final IRubyObject old_value;
old_value = contextVariables.get(this);
contextVariables.put(this, value);
try {
return block.yieldSpecific(context);
} finally {
contextVariables.put(this, old_value);
}
}
protected final ExecutionContext getExecutionContext(ThreadContext context) {
final ExecutionContext fiber;
fiber = context.getFiber();
if (fiber != null) {
return fiber;
} else {
/* root fiber */
return context.getThread();
}
}
}