If you spot a problem with this page, click here to create a Bugzilla issue.

Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using a local clone.

dmd.optimize

Perform constant folding.

Authors:

Walter Bright

License:

Boost License 1.0

Source optimize.d

Documentation https://dlang.org/phobos/dmd_optimize.html

Coverage https://codecov.io/gh/dlang/dmd/src/master/src/dmd/optimize.d

Expression expandVar(int result, VarDeclaration v);

If variable has a const initializer, return that initializer.

Returns:

initializer if there is one, null if not, ErrorExp if error

Expression Expression_optimize(Expression e, int result, bool keepLvalue);

Constant fold an Expression.

Parameters:

Expression `e`	expression to const fold; this may get modified in-place
int `result`	WANTvalue, WANTexpand, or both
bool `keepLvalue`	`e` is an lvalue, and keep it as an lvalue since it is an argument to a ref or out parameter, or the operand of & operator

Returns:

Constant folded version of e

Library Reference

dmd.optimize