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Compiler implementation of the D programming language.

Source: delegatize.d

void lambdaSetParent(Expression e, Scope* sc);
Patch the parent of declarations to be the new function literal.
bool lambdaCheckForNestedRef(Expression e, Scope* sc);
Look for references to variables in a scope enclosing the new function literal. Returns true if error occurs.
bool ensureStaticLinkTo(Dsymbol s, Dsymbol p);
See if context s is nested within context p, meaning it p is reachable at runtime by walking the static links. If any of the intervening contexts are function literals, make sure they are delegates.
Dsymbol s inner context
Dsymbol p outer context
true means it is accessible by walking the context pointers at runtime

References: for static links see