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Function dmd.escape.escapeByRef

e is an expression to be returned by 'ref'. Walk e to determine which variables are possibly being returned by ref, such as: ref int function(int i) { return i; } If e is a form of *p, determine which variables have content which is being returned as ref, such as: ref int function(int* p) { return *p; } Multiple variables can be inserted, because of expressions like this: ref int function(bool b, int i, int* p) { return b ? i : *p; }

void escapeByRef (
  Expression e,
  EscapeByResults* er,
  bool live = false,
  bool retRefTransition = false

No side effects.


e expression to be returned by 'ref'
er where to place collected data
live if @live semantics apply, i.e. expressions p, *p, **p, etc., all return p.
retRefTransition if e is returned through a return ref scope function call


Walter Bright


Boost License 1.0