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collection expression on Span<T> - C#

C#•3y ago•

8 replies

collection expression on Span<T>

Just a quick question, wasn't something like

void TestMethod(Span<int> span);

TestMethod([1]);

//Suppose to emit something like:
var _arg = 1;
TestMethod(new(&_arg, 1));
//Or
Span<int> span = stackalloc int[1];
span[0] = 1;
TestMethod(span);

void TestMethod(Span<int> span);

TestMethod([1]);

//Suppose to emit something like:
var _arg = 1;
TestMethod(new(&_arg, 1));
//Or
Span<int> span = stackalloc int[1];
span[0] = 1;
TestMethod(span);

Did they skip anti allocation improvements like this initially? right now it just allocates an array.