Package org.codehaus.groovy.vmplugin.v8

Class CacheableCallSite

java.lang.Object
java.lang.invoke.CallSite
java.lang.invoke.MutableCallSite
org.codehaus.groovy.vmplugin.v8.CacheableCallSite
public class CacheableCallSite extends MutableCallSite
Represents a cacheable call site, which can reduce the cost of resolving methods
Since:
3.0.0

  • Constructor Details

    • CacheableCallSite

      public CacheableCallSite(MethodType type, MethodHandles.Lookup lookup)
      Creates a cacheable call site for the supplied type and lookup context.
      Parameters:
      type - the call-site type
      lookup - the lookup used to unreflect targets

  • Method Details

    • getAndPut

      public org.codehaus.groovy.vmplugin.v8.MethodHandleWrapper getAndPut(String className, MemoizeCache.ValueProvider<? super String,? extends org.codehaus.groovy.vmplugin.v8.MethodHandleWrapper> valueProvider)
      Returns a cached method-handle wrapper for the receiver class, computing and storing it if needed.
      Parameters:
      className - the receiver cache key
      valueProvider - the provider used to compute a missing entry
      Returns:
      the cached or newly created wrapper

    • put

      public org.codehaus.groovy.vmplugin.v8.MethodHandleWrapper put(String name, org.codehaus.groovy.vmplugin.v8.MethodHandleWrapper mhw)
      Stores a method-handle wrapper under the supplied cache key.
      Parameters:
      name - the receiver cache key
      mhw - the wrapper to cache
      Returns:
      the previously cached wrapper, or null if none existed

    • incrementFallbackCount

      public long incrementFallbackCount()
      Increments the number of fallback executions for this call site.
      Returns:
      the updated fallback count

    • resetFallbackCount

      public void resetFallbackCount()
      Resets the fallback count and advances the fallback round marker.

    • getFallbackRound

      public AtomicLong getFallbackRound()
      Returns the fallback round counter.
      Returns:
      the fallback round counter

    • getDefaultTarget

      public MethodHandle getDefaultTarget()
      Returns the default target currently installed on this call site.
      Returns:
      the default target

    • setDefaultTarget

      public void setDefaultTarget(MethodHandle defaultTarget)
      Stores the default target for this call site.
      Parameters:
      defaultTarget - the default target handle

    • getFallbackTarget

      public MethodHandle getFallbackTarget()
      Returns the fallback target used when guards fail.
      Returns:
      the fallback target

    • setFallbackTarget

      public void setFallbackTarget(MethodHandle fallbackTarget)
      Stores the fallback target used when guards fail.
      Parameters:
      fallbackTarget - the fallback target handle

    • getLookup

      public MethodHandles.Lookup getLookup()
      Returns the lookup associated with this call site.
      Returns:
      the call-site lookup