case class InlineInfoAttribute(inlineInfo: InlineInfo) extends Attribute with Product with Serializable
This attribute stores the InlineInfo for a ClassBType as an independent classfile attribute. The compiler does so for every class being compiled.
The reason is that a precise InlineInfo can only be obtained if the symbol for a class is available. For example, we need to know if a method is final in Scala's terms, or if it has the @inline annotation. Looking up a class symbol for a given class filename is brittle (name-mangling).
The attribute is also helpful for inlining mixin methods. The mixin phase only adds mixin method symbols to classes that are being compiled. For all other class symbols, there are no mixin members. However, the inliner requires an InlineInfo for inlining mixin members. That problem is solved by reading the InlineInfo from this attribute.
In principle we could encode the InlineInfo into a Java annotation (instead of a classfile attribute). However, an attribute allows us to save many bits. In particular, note that the strings in an InlineInfo are serialized as references to constants in the constant pool, and those strings (method names, method signatures) would exist in there anyway. So the ScalaInlineAttribute remains relatively compact.
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- InlineInfoAttribute
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Instance Constructors
- new InlineInfoAttribute(inlineInfo: InlineInfo)
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##(): Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toany2stringadd[InlineInfoAttribute] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (InlineInfoAttribute, B)
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toArrowAssoc[InlineInfoAttribute] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def ensuring(cond: (InlineInfoAttribute) => Boolean, msg: => Any): InlineInfoAttribute
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toEnsuring[InlineInfoAttribute] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (InlineInfoAttribute) => Boolean): InlineInfoAttribute
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toEnsuring[InlineInfoAttribute] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): InlineInfoAttribute
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toEnsuring[InlineInfoAttribute] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): InlineInfoAttribute
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toEnsuring[InlineInfoAttribute] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toStringFormat[InlineInfoAttribute] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def getLabels(): Array[Label]
- Attributes
- protected[scala.tools.asm]
- Definition Classes
- Attribute
- val inlineInfo: InlineInfo
- def isCodeAttribute(): Boolean
- Definition Classes
- Attribute
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def isUnknown(): Boolean
Not sure what this method is good for, it is not invoked anywhere in the ASM framework.
Not sure what this method is good for, it is not invoked anywhere in the ASM framework. However, the example in the ASM manual also overrides it to
falsefor custom attributes, so it might be a good idea.- Definition Classes
- InlineInfoAttribute → Attribute
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- def productElementNames: Iterator[String]
- Definition Classes
- Product
- def read(cr: ClassReader, off: Int, len: Int, buf: Array[Char], codeOff: Int, labels: Array[Label]): InlineInfoAttribute
Deserialize the attribute into an InlineInfo.
Deserialize the attribute into an InlineInfo. The attribute starts at cr.b(off), but we don't need to access that array directly, we can use the
readmethods provided by the ClassReader.bufis a pre-allocated character array that is guaranteed to be long enough to hold any string of the constant pool. So we can use it to invokecr.readUTF8.- Definition Classes
- InlineInfoAttribute → Attribute
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- def write(cw: ClassWriter, code: Array[Byte], len: Int, maxStack: Int, maxLocals: Int): ByteVector
Serialize the
inlineInfointo a byte array.Serialize the
inlineInfointo a byte array. Strings are added to the constant pool and serialized as references.- Definition Classes
- InlineInfoAttribute → Attribute
Deprecated Value Members
- def →[B](y: B): (InlineInfoAttribute, B)
- Implicit
- This member is added by an implicit conversion from InlineInfoAttribute toArrowAssoc[InlineInfoAttribute] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
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The Scala compiler and reflection APIs.