CodeQL library for C/C++
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Class LambdaCapture

Information about a value captured as part of a lambda expression. For example in the following code, information about x and y is captured:

auto a = [x, y](int z) -> int {
  return x + y + z;
};

Import path

import cpp

Direct supertypes

Indirect supertypes

Predicates

getAPrimaryQlClass

Gets the name of a primary CodeQL class to which this element belongs.

getField

Gets the field of the lambda expression’s closure type which is used to store this capture.

getInitializer

Gets the expression which yields the final captured value.

getLocation

Gets the location of the declaration of this capture.

isCapturedByReference

Holds if the variable was captured by reference.

isImplicit

Holds if this capture was made implicitly.

toString

Gets a textual representation of this element.

Inherited predicates

findRootCause

Gets the source of this element: either itself or a macro that expanded to this element.

from Element
fromLibrary

Holds if this element may be from a library.

from Element
fromSource

Holds if this element may be from source. This predicate holds for all elements, except for those in the dummy file, whose name is the empty string. The dummy file contains declarations that are built directly into the compiler.

from Element
getCanonicalQLClass

DEPRECATED: use getAPrimaryQlClass instead.

from ElementBase
getEnclosingElement

Gets the closest Element enclosing this one.

from Element
getFile

Gets the primary file where this element occurs.

from Element
getParentScope

Gets the parent scope of this Element, if any. A scope is a Type (Class / Enum), a Namespace, a BlockStmt, a Function, or certain kinds of Statement.

from Element
isAffectedByMacro

Holds if this element is affected in any way by a macro. All elements that are totally or partially generated by a macro are included, so this is a super-set of isInMacroExpansion.

from Element
isFromTemplateInstantiation

Holds if this Element is a part of a template instantiation (but not the template itself).

from Element
isFromUninstantiatedTemplate

Holds if this Element is part of a template template (not if it is part of an instantiation of template). This means it is represented in the database purely as syntax and without guarantees on the presence or correctness of type-based operations such as implicit conversions.

from Element
isInMacroExpansion

Holds if this element comes from a macro expansion. Only elements that are entirely generated by a macro are included - for elements that partially come from a macro, see isAffectedByMacro.

from Element