Library Reference

version 2.112.0

Internal API

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dmd.delegatize

Implements conversion from expressions to delegates for lazy parameters.

SpecificationLazy Parameters

Authors:

Walter Bright

License:

Boost License 1.0

Sourcedelegatize.d

Documentationhttps://dlang.org/phobos/dmd_delegatize.html

Coveragehttps://codecov.io/gh/dlang/dmd/src/master/compiler/src/dmd/delegatize.d

ExpressiontoDelegate(Expressione, Typet, Scope*sc);

Convert expression into a delegate.

Used to convert the argument to a lazy parameter.

Parameters:

Expression`e`	argument to convert to a delegate
Type`t`	the type to be returned by the delegate
Scope*`sc`	context

Returns:

A delegate literal

boollambdaCheckForNestedRef(Expressione, Scope*sc);

Look for references to variables in a scope enclosing the new function literal.

Essentially just callscheckNestedReference() for each variable reference ine`.

Parameters:

Scope*`sc`	context
Expression`e`	expression to check

Returns:

true if error occurs.

boolensureStaticLinkTo(Dsymbols, Dsymbolp);

See if contexts is nested within contextp, meaning itp is reachable at runtime by walking the static links. If any of the intervening contexts are function literals, make sure they are delegates.

Parameters:

Dsymbol`s`	inner context
Dsymbol`p`	outer context

Returns:

true means it is accessible by walking the context pointers at runtime

Referencesfor static links seehttps://en.wikipedia.org/wiki/Call_stack#Functions_of_the_call_stack

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Library Reference

dmd.delegatize