Class Expr::FunctionExpr

A (non-arrow) function expression.

Examples:

var greet =
  function g() {          // function expression with name `g`
    console.log("Hi!");
  };

class C {
  m() {                   // methods are (anonymous) function expressions
    return 1;
  }
}

Direct supertypes

Indirect supertypes

Known direct subtypes

Predicates

getEnclosingContainer

Gets the enclosing function or toplevel of this function.

getEnclosingStmt

Gets the statement in which this function expression appears.

isAccessor

Holds if this function expression is a property accessor.

isGetter

Holds if this function expression is a property getter.

isImpure

Holds if this expression is impure, that is, its evaluation could have side effects.

isSetter

Holds if this function expression is a property setter.

Inherited predicates

accessesGlobal

Holds if this expression accesses the global variable g, either directly or through the window object.

from Expr
analyze

Gets type inference results for this element.

from ValueNode
declaresArguments

Holds if this function declares a parameter or local variable named arguments.

from Function
describe

Gets a description of this function.

from Function
describeControlFlowNode

For internal use.

from ControlFlowNode
flow

Gets the data flow node associated with this program element.

from ValueNode
getABodyStmt

Gets a statement in the body of this function.

from Function
getAChild

Gets a child node of this node.

from ASTNode
getAChildExpr

Gets a child expression of this node.

from ASTNode
getAChildStmt

Gets a child statement of this node.

from ASTNode
getAParameter

Gets a parameter of this function.

from Function
getAPredecessor

Gets a node preceding this node in the CFG.

from ControlFlowNode
getAReturnStmt

Gets a return statement in the body of this function, if any.

from Function
getAReturnedExpr

Gets an expression that could be returned by this function, if any.

from Function
getAStmt

Gets a statement that belongs to this container.

from StmtContainer
getASuccessor

Gets a node succeeding this node in the CFG.

from ControlFlowNode
getAToken

Gets a token belonging to this element.

from ASTNode
getATypeParameter

Gets any type parameter declared on this function or type.

from TypeParameterized
getArgumentsVariable

Gets the arguments variable of this function, if any.

from Function
getBasicBlock

Gets the basic block this node belongs to.

from ControlFlowNode
getBody

Gets the body of this function.

from Function
getBodyStmt

Gets the ith statement in the body of this function.

from Function
getCanonicalName

Gets the canonical name for this function, as determined by the TypeScript compiler.

from Function
getChild

Gets the ith child node of this node.

from ASTNode
getChildExpr

Gets the ith child expression of this node.

from ASTNode
getChildStmt

Gets the ith child statement of this node.

from ASTNode
getChildTypeExpr

Gets the ith child type expression of this node.

from ASTNode
getContainer

Gets the statement container (function or toplevel) in which this expression appears.

from Expr
getCyclomaticComplexity

Gets the cyclomatic complexity of this function.

from Function
getDocumentation

Gets the JSDoc comment associated with this expression or type or its parent statement, if any.

from ExprOrType
getEnclosingFunction

Gets the function in which this expression or type appears, if any.

from ExprOrType
getEndLine

Gets the line on which this element ends.

from Locatable
getEntry

Gets the (unique) entry node of the control flow graph for this toplevel or function.

from StmtContainer
getEntryBB

Gets the entry basic block of this function, that is, the basic block containing the entry node of its CFG.

from StmtContainer
getExit

Gets the (unique) exit node of the control flow graph for this toplevel or function.

from StmtContainer
getFile

Gets the file this program element comes from.

from Locatable
getFirstControlFlowNode

Gets the first control flow node belonging to this syntactic entity.

from ASTNode
getFirstToken

Gets the first token belonging to this element.

from ASTNode
getFunctionBoundary

Gets the innermost enclosing function or top-level, possibly this container itself if it is a function or top-level.

from StmtContainer
getId

Gets the identifier specifying the name of this function, if any.

from Function
getIntValue

Gets the constant integer value this expression evaluates to, if any.

from Expr
getKind

Gets the kind of this expression, which is an integer value representing the expression’s node type.

from Expr
getLastToken

Gets the last token belonging to this element.

from ASTNode
getLocation

Gets this element’s location.

from ASTNode
getName

Gets the name of this function if it has one, or a name inferred from its context.

from Function
getNumBodyStmt

Gets the number of statements in the body of this function.

from Function
getNumChild

Gets the number of child nodes of this node.

from ASTNode
getNumChildExpr

Gets the number of child expressions of this node.

from ASTNode
getNumChildStmt

Gets the number of child statements of this node.

from ASTNode
getNumLines

Gets the number of lines covered by this element.

from Locatable
getNumParameter

Gets the number of parameters declared by this element.

from Parameterized
getNumTypeParameter

Gets the number of type parameters declared on this function or type.

from TypeParameterized
getNumberOfLines

Gets the number of lines in this function.

from Function
getNumberOfLinesOfCode

Gets the number of lines containing code in this function.

from Function
getNumberOfLinesOfComments

Gets the number of lines containing comments in this function.

from Function
getParameter

Gets the ith parameter of this function.

from Function
getParameterByName

Gets the parameter named name of this function, if any.

from Function
getParameterVariable

Gets a variable of the given name that is a parameter of this element.

from Parameterized
getParent

Gets the parent node of this node, if any.

from ASTNode
getParentExpr

Gets the expression that is the parent of this expression in the AST, if any.

from Expr
getReturnTypeAnnotation

Gets the return type annotation on this function, if any.

from Function
getScope

Gets the scope induced by this toplevel or function, if any.

from StmtContainer
getStart

Gets the (unique) CFG node at which execution of this toplevel or function begins.

from StmtContainer
getStartBB

Gets the start basic block of this function, that is, the basic block containing the start node of its CFG.

from StmtContainer
getStartLine

Gets the line on which this element starts.

from Locatable
getStringValue

Gets the constant string value this expression evaluates to, if any.

from Expr
getThisBinder

Gets the function whose this binding a this expression in this function refers to, which is the nearest enclosing non-arrow function.

from Function
getThisBindingContainer

Gets the function or top-level whose this binding a this expression in this function refers to, which is the nearest enclosing non-arrow function or top-level.

from Function
getThisTypeAnnotation

Gets the type annotation for the special this parameter, if it is present.

from Function
getTopLevel

Gets the toplevel syntactic unit to which this element belongs.

from ASTNode
getType

Gets the static type of this expression, as determined by the TypeScript type system.

from Expr
getTypeParameter

Gets the nth type parameter declared on this function.

from Function
getUnderlyingReference

Gets the innermost reference that this expression evaluates to, if any.

from ExprOrType
getUnderlyingValue

Gets the innermost expression that this expression evaluates to.

from ExprOrType
getVariable

Gets the variable holding this function.

from Function
hasBody

Holds if this function has a body.

from Function
hasMappedArgumentsVariable

Holds if this function has a mapped arguments variable whose indices are aliased with the function’s parameters.

from Function
hasRestParameter

Holds if the last parameter of this function is a rest parameter.

from Function
hasTrailingComma

Holds if the parameter list of this function has a trailing comma.

from Function
hasTypeParameters

Holds if this function or type declares any type parameters.

from TypeParameterized
inExternsFile

Holds if this syntactic entity belongs to an externs file.

from ASTNode
inNullSensitiveContext

Holds if the syntactic context that the expression appears in relies on the expression being non-null/non-undefined.

from Expr
isAFinalNode

Holds if this is a final node, that is, a CFG node where execution of a toplevel or function terminates.

from ControlFlowNode
isAbstract

Holds if this function is part of an abstract class member.

from Function
isAmbient

Holds if this is part of an ambient declaration or type annotation in a TypeScript file.

from Function
isAsync

Holds if this function is an asynchronous function.

from Function
isBranch

Holds if this is a node with more than one successor.

from ControlFlowNode
isGenerator

Holds if this function is a generator function.

from Function
isJoin

Holds if this is a node with more than one predecessor.

from ControlFlowNode
isNonConstructible

Holds if this function cannot be invoked using new because it is of the given kind.

from Function
isPure

Holds if this expression is pure, that is, is its evaluation is guaranteed to be side effect-free.

from Expr
isStart

Holds if this is a start node, that is, the CFG node where execution of a toplevel or function begins.

from ControlFlowNode
isStrict

Holds if the code in this container is executed in ECMAScript strict mode.

from Function
isUnreachable

Holds if this node is unreachable, that is, it has no predecessors in the CFG. Entry nodes are always considered reachable.

from ControlFlowNode
mayHaveBooleanValue

Holds if this expression may evaluate to b.

from Expr
mayHaveStringValue

Holds if this expression may evaluate to s.

from Expr
mayReferToParameter

Holds if this expression may refer to the initial value of parameter p.

from Expr
stripParens

Gets this expression, with any surrounding parentheses removed.

from Expr
toString

Gets a textual representation of this element.

from Expr
usesArgumentsObject

Holds if the body of this function refers to the function’s arguments variable.

from Function