[llvm] [ADT] Deprecate StringSwitch Cases with 3+ args. NFC. (PR #165119)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-adt

Author: Jakub Kuderski (kuhar)

<details>
<summary>Changes</summary>

Suggest the `initializer_list` overload instead.

3+ args is an arbitrary number that allows for incremental depreciation without having to update too many call sites.

For more context, see https://github.com/llvm/llvm-project/pull/163117.

---
Full diff: https://github.com/llvm/llvm-project/pull/165119.diff


1 Files Affected:

- (modified) llvm/include/llvm/ADT/StringSwitch.h (+2) 


``````````diff
diff --git a/llvm/include/llvm/ADT/StringSwitch.h b/llvm/include/llvm/ADT/StringSwitch.h
index 2262b1162e330..98685de8573fa 100644
--- a/llvm/include/llvm/ADT/StringSwitch.h
+++ b/llvm/include/llvm/ADT/StringSwitch.h
@@ -93,6 +93,7 @@ class StringSwitch {
     return CasesImpl({S0, S1}, Value);
   }
 
+  [[deprecated("Pass cases in std::initializer_list instead")]]
   StringSwitch &Cases(StringLiteral S0, StringLiteral S1, StringLiteral S2,
                       T Value) {
     return CasesImpl({S0, S1, S2}, Value);
@@ -176,6 +177,7 @@ class StringSwitch {
     return CasesLowerImpl({S0, S1}, Value);
   }
 
+  [[deprecated("Pass cases in std::initializer_list instead")]]
   StringSwitch &CasesLower(StringLiteral S0, StringLiteral S1, StringLiteral S2,
                            T Value) {
     return CasesLowerImpl({S0, S1, S2}, Value);

``````````

</details>


https://github.com/llvm/llvm-project/pull/165119