Call

A call is the invocation of a function or method.

Related concepts:  FunctionMethodReturn

Closest Wikipedia entry:  Subroutine — In computer programming, a function or subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed. Functions may be defined within programs, or separately in libraries that can be used by many programs.

Misconceptions about Call

52 documented Misconceptions

BaseCaseNotNeeded — Java

Recursive computations do not necessarily need a base case

BaseCaseNotNeeded — Scratch

Recursive computations do not necessarily need a base case

BaseCaseSelfRecursive — Java

The base case of a structural recursion consists of a recursive self-call

CallNotStaticallyChecked — Java

A method invocation on a reference of a type that does not have that method won't compile

CallOnPrimitive — Java

One can invoke a method on primitive values

CallRequiresVariable — Java

One needs a variable to invoke a method

CallWithoutFrame — Java

A method invocation does not necessarily allocate a stack frame

CallbackParametersInCaller — JavaScript

Parameters of a callback function may be written as parameters of the caller function

CallerFrameContainsCalleeFormal — Java

Stack frame of caller includes variables for callee's formal parameters

CannotChainAttributeToObjectInstantiation — Python

Method calls, and attribute accesses in general, cannot be chained to a constructor invocation.

CannotChainMemberAccesses — Java

Member accesses cannot be chained together

CannotChainMemberToConstructor — Java

Method calls or field accesses cannot be chained to a constructor invocation

ChainedMethodsNotCalledFromOutside — Java

Chained methods are all called on the object at the beginning of the chain

ConstructorAllocates — Java

The constructor allocates the object

ConstructorReturnsObject — Java

Constructors need to return objects

ConstructorWithoutNew — Java

One can write the constructor name, without new, to instantiate a class

DeferredReturn — Java

A return statement in the middle of a method doesn't return immediately

DeferredReturn — Python

A return statement in the middle of a function doesn't return immediately

FrameIsClassInstance — Java

A stack frame is the same as an instance of a class

FunctionAsValueWithParentheses — JavaScript

To use a function as a value, one needs to have parentheses after its name

FunctionsCannotBeImmediatelyInvoked — JavaScript

Functions cannot be called in the expression in which they are defined

InitCreates — Python

__init__ must create a new object

InitReturnsObject — Python

__init__ needs to return an object

InlineCallInExpressionTree — Java

The expression tree of an expression involving a call inlines the call's computation of the returned value

InterproceduralEdge — Java

In an intra-procedural control-flow graph, method call nodes point to the called method

NoCallOnStringLiteral — Java

One cannot invoke methods on String literals

NoFunctionCallsChaining — JavaScript

It is not allowed to chain function calls

NoInsideMethodCallInConstructor — Java

It is foirbidden to call other methods on the same object while inside its constructor

NoStringToString — Java

One cannot invoke toString() on a String

NumberOfParametersMatchArguments — JavaScript

Functions must be called with the same number of arguments as defined in their signature

ObjectLabeledWithConstructorSignature — Java

In stack and heap diagrams, an object on the heap is labeled like a stack frame of a constructor call

ObjectsMustBeNamed — Java

A variable is needed to instantiate an object

ObjectsMustBeNamed — Python

A variable is needed to instantiate an object

OutsideInFunctionNesting — Python

Nested function calls are invoked outside in

OutsideInMethodNesting — Java

Nested method calls are invoked outside in

ParenthesesOnlyIfArgument — Java

() are optional for method calls without arguments

ParenthesesOnlyIfArgument — Python

() are optional for function calls without arguments

RecursiveCallSiteNoReturn — Java

Tail-recursive call sites have no continuation

ReturnCall — Java

Return statements need () around the return value

ReturnCall — Python

Return statements need () around the return value

ReturnUnwindsMultipleFrames — Java

A return statement can unwind multiple call stack frames

ReturnUnwindsMultipleFrames — Python

A return statement can unwind multiple call stack frames

RightToLeftChaining — Java

Chained accesses are invoked from right to left

RightToLeftChaining — Python

Chained accesses are invoked from right to left

SetTimeout0IsSynchronous — JavaScript

Scheduling the execution of a function after 0 milliseconds with setTimeout is equivalent to a synchronous call

StackTraceIsCallHistory — Java

A stack trace is the sequence of previously called methods

StaticCallPolymorphic — Java

A static method call is dispatched polymorphically at runtime based on the argument types

StaticDispatch — Java

The method to be called is determined by the static type

StaticFrameInGlobals — Java

Stack frame of static method calls lives in the global memory area

SuperAlwaysHasParentheses — Java

To call a method on a superclass, parentheses are needed after the keyword super

SuperNotFirstStatement — Java

super() can be called anywhere in the constructor of a subclass

ThisChildInCallExpression — Java

Instance method or constructor call nodes in expression trees have a child labeled "this"