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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.

Parameters

Name	Description
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

Authors

Walter Bright

License

Boost License 1.0