CodeGenerator.EmitStackAlloc - Avoid capturing blob array (#76660)

alrz · web-flow · commit f68a47ab0e91 · 2025-01-10T10:34:08.000Z
diff --git a/src/Compilers/CSharp/Portable/CodeGen/EmitStackAllocInitializer.cs b/src/Compilers/CSharp/Portable/CodeGen/EmitStackAllocInitializer.cs
@@ -45,7 +45,7 @@ private void EmitStackAlloc(TypeSymbol type, BoundArrayInitialization? inits, Bo
                 var sizeInBytes = elementType.EnumUnderlyingTypeOrSelf().SpecialType.SizeInBytes();
 
                 ImmutableArray<byte> data = GetRawData(initExprs);
-                if (data.All(datum => datum == data[0]))
+                if (data.All(static (d, first) => d == first, data[0]))
                 {
                     // All bytes are the same, no need for metadata blob, just initblk to fill it with the repeated value.
                     _builder.EmitOpCode(ILOpCode.Dup);

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ private void EmitStackAlloc(TypeSymbol type, BoundArrayInitialization? inits, Bo`
`45`	`45`	`var sizeInBytes = elementType.EnumUnderlyingTypeOrSelf().SpecialType.SizeInBytes();`
`46`	`46`
`47`	`47`	`ImmutableArray<byte> data = GetRawData(initExprs);`
`48`		`- if (data.All(datum => datum == data[0]))`
	`48`	`+ if (data.All(static (d, first) => d == first, data[0]))`
`49`	`49`	`{`
`50`	`50`	`// All bytes are the same, no need for metadata blob, just initblk to fill it with the repeated value.`
`51`	`51`	`_builder.EmitOpCode(ILOpCode.Dup);`