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view tests/mini/interface8.d @ 1275:bedf0bfb8fdb
Implement first D-specific optimization pass: -simplify-drtcalls.
It uses the machinery of the standard -simplify-libcalls pass, but optimizes
calls to the D runtime instead of calls to C libraries.
At the moment, these optimizations are implemented by this pass:
- Avoid the runtime call for `arr.length = newlen` if it can determine that
the new length isn't longer than the old one.
- Ditto for `cast(T[]) arr` if it will clearly always succeed.
(e.g. if the length of the original array is zero, or if the old element
size is a multiple of the new element size)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Tue, 28 Apr 2009 21:58:06 +0200 |
parents | d92acb81a583 |
children |
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interface InputStream { void foo(); } interface OutputStream { void bar(); } interface IConduit : InputStream, OutputStream { abstract uint bufferSize(); } class Conduit : IConduit { abstract uint bufferSize(); abstract void foo(); abstract void bar(); } interface Selectable { void car(); } class DeviceConduit : Conduit, Selectable { override uint bufferSize () { return 1024 * 16; } override void foo() {} override void bar() {} override void car() {} int handle; } class ConsoleConduit : DeviceConduit { override void foo() {} bool redirected; } class OtherConduit : Conduit { abstract uint bufferSize(); override void foo() {} override void bar() {} } void main() { auto c = new ConsoleConduit; IConduit ci = c; assert(c.bufferSize == ci.bufferSize); }