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[Version 9.0] Feature support for more partial methods #1468

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[Version 9.0] Feature support for more partial methods #1468

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bf31866
Add support for extending partial methods
RexJaeschke Nov 13, 2023
a1840d1
Address existing comments.
BillWagner Jan 8, 2026
1637740
Some final edits
BillWagner Jan 9, 2026
6f80488
Apply suggestions from code review
BillWagner Jan 29, 2026
fec3373
Respond to meeting feedback
BillWagner Jan 29, 2026
f1fc356
fix build issues
BillWagner Jan 29, 2026
9bd3200
Apply suggestions from code review
BillWagner Feb 25, 2026
ca442d3
Respond to feedback.
BillWagner Feb 25, 2026
4e64942
missed a couple...
BillWagner Feb 25, 2026
075ba71
review and edit.
BillWagner Feb 25, 2026
f86b34a
Next round of edits
BillWagner Jul 15, 2026
3b17047
Update for two omissions
BillWagner Aug 18, 2026
d5d2748
Reconcile partial-method entry-point reference with approved C9 heading
BillWagner Oct 13, 2026
ab68cee
Apply batched suggestions from code review
BillWagner Oct 22, 2026
d7bdea0
Respond to remaining feedback.
BillWagner Oct 22, 2026
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2 changes: 1 addition & 1 deletion standard/basic-concepts.md
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Expand Up @@ -35,7 +35,7 @@ A method qualifies as a canditate entry point by satisfying the following requir
- It shall be declared in a non-generic type. If the type declaring the method is a nested type, all of its enclosing types shall be non-generic.
- The return type shall be `void`, `int`, `System.Threading.Tasks.Task`, or `System.Threading.Tasks.Task<int>`.
- If the `async` modifier is present, the method’s return type shall be `System.Threading.Tasks.Task` or `System.Threading.Tasks.Task<int>`.
- It shall not be a partial method ([§15.6.9](classes.md#1569-partial-methods)) without an implementation.
- It shall not be an optional partial method (§optional-partial-methods) without an implementing declaration.
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- The parameter list shall either be empty, or have a single value parameter of type `string[]`.

The declared accessibility ([§7.4.2](basic-concepts.md#742-declared-accessibility)) of a method is ignored for the purposes of qualifying as a candidate entry point. At application startup the selected entry point is invoked regardless of its declared accessibility. However any declared accessibility continues to apply if the selected candidate entry point is invoked after application startup.
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