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Function `dmd.sideeffect.extractSideEffect`

Build a temporary variable to extract e's evaluation, if e is not trivial.


						
				Expression extractSideEffect
				(
				

				  dmd.dscope.Scope* sc,
				

				  const(char*) name,
				

				  ref Expression e0,
				

				  Expression e,
				

				  bool alwaysCopy = false
				

				);

Parameters

Name	Description
sc	scope
name	name for temporary variable
e0	a new side effect part will be appended to it.
e	original expression
alwaysCopy	if true, build new temporary variable even if e is trivial.

Returns

When e is trivial and alwaysCopy == false, e itself is returned. Otherwise, a new VarExp is returned.

Note

e's lvalue-ness will be handled well by STC.ref_ or STC.rvalue.

Authors

Walter Bright

License

Boost License 1.0