randoop.operation

Class ConstructorCall

java.lang.Object

randoop.operation.CallableOperation

randoop.operation.ConstructorCall

All Implemented Interfaces:

Operation

public final class ConstructorCall
extends CallableOperation

ConstructorCall is an Operation that represents a call to a constructor, and holds a reference to a reflective Constructor object.

As an Operation, a call to constructor c with n arguments is represented as c : [t1,...,tn] → c, where the output type c is also the name of the class.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.reflect.Constructor<?>	constructor
private int	hashCodeCached
private boolean	hashCodeComputed

Constructor Summary

Constructors

Constructor and Description
ConstructorCall(java.lang.reflect.Constructor<?> constructor) Creates object corresponding to the given reflection constructor.

Method Summary

Modifier and Type	Method and Description
void	appendCode(Type declaringType, TypeTuple inputTypes, Type outputType, java.util.List<Variable> inputVars, java.lang.StringBuilder b) Adds code for a constructor call to the given StringBuilder.
boolean	equals(@Nullable java.lang.Object o) Tests whether the parameter is a call to the same constructor.
ExecutionOutcome	execute(java.lang.Object[] statementInput) Performs this operation using the array of input values.
java.lang.reflect.Constructor<?>	getConstructor() Return the reflective constructor corresponding to this ConstructorCall.
java.lang.String	getName() Returns the name for the operation.
java.lang.reflect.Constructor<?>	getReflectionObject()
int	hashCode() Returns the hashCode for the constructor called by this object.
boolean	isConstructorCall() Predicate to indicate whether object represents a call to a constructor.
static TypedClassOperation	parse(java.lang.String signature) Parse a constructor call in a string with the format generated by toParsableString(Type, TypeTuple, Type) and returns the corresponding ConstructorCall object.
boolean	satisfies(ReflectionPredicate reflectionPredicate) Checks whether reflective object contained in an Operation satisfies the predicate.
java.lang.String	toParsableString(Type declaringType, TypeTuple inputTypes, Type outputType) Returns a string representation of this Operation (not an invocation of this Operation), which can be read by the static parse method for the class in which the method is defined.
java.lang.String	toString() Returns concise string representation of this ConstructorCall.

Methods inherited from class randoop.operation.CallableOperation

getArgumentString, getValue, isConstantField, isMessage, isMethodCall, isNonreceivingValue, isStatic, isUncheckedCast

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

constructor

private final java.lang.reflect.Constructor<?> constructor

hashCodeCached

private int hashCodeCached

hashCodeComputed

private boolean hashCodeComputed

Constructor Detail

ConstructorCall

public ConstructorCall(java.lang.reflect.Constructor<?> constructor)

Creates object corresponding to the given reflection constructor.

Parameters:

constructor - reflective object for a constructor

Method Detail

getConstructor

public java.lang.reflect.Constructor<?> getConstructor()

Return the reflective constructor corresponding to this ConstructorCall.

Returns:

Constructor object called by this constructor call

toString

public java.lang.String toString()

Returns concise string representation of this ConstructorCall.

Overrides:

toString in class java.lang.Object

getName

public java.lang.String getName()

Description copied from interface: Operation

Returns the name for the operation.

Returns:

the name for this operation

appendCode

public void appendCode(Type declaringType,
                       TypeTuple inputTypes,
                       Type outputType,
                       java.util.List<Variable> inputVars,
                       java.lang.StringBuilder b)

Adds code for a constructor call to the given StringBuilder.

Specified by:

appendCode in class CallableOperation

Parameters:

inputVars - a list of variables representing the actual arguments for the constructor call

b - the StringBuilder to which the output is appended

declaringType - the declaring type for this operation

inputTypes - the input types for this operation

outputType - the output type for this operation

See Also:

TypedClassOperation.appendCode(List, StringBuilder)

equals

public boolean equals(@Nullable java.lang.Object o)

Tests whether the parameter is a call to the same constructor.

Overrides:

equals in class java.lang.Object

Parameters:

o - an object

Returns:

true if o is a ConstructorCall referring to same constructor object; false otherwise

hashCode

public int hashCode()

Returns the hashCode for the constructor called by this object.

Overrides:

hashCode in class java.lang.Object

execute

public ExecutionOutcome execute(java.lang.Object[] statementInput)

Performs this operation using the array of input values. Returns the results of execution as an ResultOrException object and can output results to specified PrintStream.

Performs call to the constructor given the objects as actual parameters, and the output stream for any output.

Specified by:

execute in class CallableOperation

Parameters:

statementInput - is an array of values corresponding to signature of the constructor

Returns:

results of executing this statement

See Also:

TypedOperation.execute(Object[])

toParsableString

public java.lang.String toParsableString(Type declaringType,
                                         TypeTuple inputTypes,
                                         Type outputType)

Returns a string representation of this Operation (not an invocation of this Operation), which can be read by the static parse method for the class in which the method is defined. For a class C implementing the Operation interface, this method should return a String s such that parsing the string returns an object equivalent to this object, i.e. C.parse(this.s).equals(this).

Generates a string representation of the constructor signature.

Examples:

 java.util.ArrayList.<init>()
 java.util.ArrayList.<init>(java.util.Collection)
 

Specified by:

toParsableString in class CallableOperation

Parameters:

declaringType - the declaring type for this operation

inputTypes - the input types for this operation

outputType - the output type for this operation

Returns:

signature string for constructor

See Also:

parse(String)

parse

public static TypedClassOperation parse(java.lang.String signature)
                                 throws OperationParseException

Parse a constructor call in a string with the format generated by toParsableString(Type, TypeTuple, Type) and returns the corresponding ConstructorCall object.

Parameters:

signature - a string descriptor of a constructor call

Returns:

the constructor call for the given string descriptor

Throws:

OperationParseException - if no constructor found for signature

See Also:

OperationParser.parse(String)

isConstructorCall

public boolean isConstructorCall()

Predicate to indicate whether object represents a call to a constructor.

Specified by:

isConstructorCall in interface Operation

Overrides:

isConstructorCall in class CallableOperation

Returns:

true, because this is a ConstructorCall

getReflectionObject

public java.lang.reflect.Constructor<?> getReflectionObject()

Overrides:

getReflectionObject in class CallableOperation

satisfies

public boolean satisfies(ReflectionPredicate reflectionPredicate)

Checks whether reflective object contained in an Operation satisfies the predicate. Since there is no reflective object in an CallableOperation, returns false.

Determines whether enclosed Constructor satisfies the given predicate.

Specified by:

satisfies in interface Operation

Overrides:

satisfies in class CallableOperation

Parameters:

reflectionPredicate - ReflectionPredicate against which object to be checked

Returns:

true only if the constructor in this object satisfies the ReflectionPredicate.test(Constructor) implemented by predicate.