scala.tools.nsc.backend.jvm.analysis
ProdConsAnalyzer
Related Docs:
object ProdConsAnalyzer
| package analysis
scala.tools.nsc.backend.jvm.analysis
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types and null.
Equivalent to x.hashCode except for boxed numeric types and null.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
For null returns a hashcode where null.hashCode throws a
NullPointerException.
a hash value consistent with ==
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
true if the receiver object is equivalent to the argument; false otherwise.
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at
runtime, while the expression List(1).asInstanceOf[List[String]] will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
ClassCastException if the receiver object is not an instance of the erasure of type T0.
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the clone method is platform dependent.
a copy of the receiver object.
not specified by SLS as a member of AnyRef
Returns the potential consumer instructions of a (local or stack) value in the frame of insn.
Returns the potential consumer instructions of a (local or stack) value in the frame of insn.
This is the counterpart of producersForValueAt.
Tests whether the argument (that) is a reference to the receiver object (this).
Tests whether the argument (that) is a reference to the receiver object (this).
The eq method implements an equivalence relation on
non-null instances of AnyRef, and has three additional properties:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.x of type AnyRef, x.eq(null) and null.eq(x) returns false.null.eq(null) returns true. When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
true if the argument is a reference to the receiver object; false otherwise.
The equality method for reference types.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as
well as the interaction between finalize and non-local returns
and exceptions, are all platform dependent.
not specified by SLS as a member of AnyRef
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
The hashCode method for reference types.
Returns the potential initial producer instructions of a value in the frame of insn.
Returns the potential initial producer instructions of a value in the frame of insn.
Unlike producersForValueAt, producers are tracked through copying instructions such as STORE
and LOAD. If the producer of the value is a LOAD, then the producers of the stored value(s) are
returned instead.
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String] will return false, while the
expression List(1).isInstanceOf[List[String]] will return true.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true if the receiver object is an instance of erasure of type T0; false otherwise.
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Returns the potential producer instructions of any of the values consumed by insn.
Returns the potential producer instructions of a (local or stack) value in the frame of insn.
Returns the potential producer instructions of a (local or stack) value in the frame of insn.
This method simply returns the producer information computed by the SourceValue analysis.
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
Returns the potential ultimate consumers of a value in the frame of insn.
Returns the potential ultimate consumers of a value in the frame of insn. Consumers are
tracked through copying operations such as SOTRE and LOAD.
This class provides additional queries over ASM's built-in
SourceValueanalysis.The analysis computes for each value in a frame a set of source instructions, which are the potential producers. Most instructions produce either nothing or a stack value. For example, a
LOADinstruction is the producer of the value pushed onto the stack. The exception areSTOREinstructions, which produce a new value for a local variable slot, so they are used as producers for the value they stored.Note that pseudo-instructions are used as initial producers for parameters and local variables. See the documentation on class InitialProducer.
This class implements the following queries over the data computed by the SourceValue analysis:
The following operations are considered as copying operations:
If ever needed, we could introduce a mode where primitive conversions (l2i) are considered as copying operations.