Call

A call is the invocation of a function or method.

Related concepts:  FunctionMethodReturn

Closest Wikipedia entry:  Subroutine — In computer programming, a function (also procedure, method, subroutine, routine, or subprogram) is a callable unit of software logic that has a well-defined interface and behavior and can be invoked multiple times. Callable units provide a powerful programming tool. The primary purpose is to allow for the decomposition of a large and/or complicated problem into chunks that have relatively low cognitive load and to assign the chunks meaningful names (unless they are anonymous).

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"