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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">I prefer the Supplier approach a lot.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Future usage in StructuredTaskScope looks weird especially since it reintroduces async style “legacy” where we don’t expect it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Btw has a safer lambda-oriented API been considered (as an optional static helper)? for example:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"> var sum = StructuredTaskScope.execute(<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"> () -> task1(),<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"> () -> task2(),<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"> (result1, result2) -> result1 + result2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"> ) // throws if any error in one of the parallel tasks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">(It could be defined for 2,3,4… args)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;mso-fareast-language:EN-US">Arnaud<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US" style="font-size:11.0pt"><br>
<br>
<br>
That is exactly what Supplier.get() would do. It will not block, but throw an IllegalStateException if called before the scope is joined. There is no need for it to every throw any “logic” exception, because failures would be handled collectively by the policy
immediately after joining. In the ShutdownOnFailure case, you would then call get once you know the forks have succeeded. In the ShutdownOnSuccess case, you won’t use the Supplier at all (just ShutdownOnSuccess.result()).<br>
<br>
</span><span style="font-size:11.0pt">— Ron<o:p></o:p></span></p>
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