To find out more about what’s going on within that method, double-click its row in the table. Doing so will bring up the following view:
When I do this, I don’t see source code on the left pane as in your screenshot. On the left pane I see what appears to be assembly:
+0x00
pushq %rbp
+0x01
movq %rsp, %rbp
+0x04
pushq %r15
+0x06
pushq %r14
+0x08
pushq %r13
+0x0a
pushq %r12
+0x0c
pushq %rbx
+0x0d
subq $56, %rsp
+0x11
movq 41056(%rip), %rdi
+0x18
callq “DYLD-STUB$$objc_allocWithZone”
+0x1d
movq 40828(%rip), %rsi
+0x24
movq %rax, %rdi
+0x27
xorl %edx, %edx
+0x29
callq “DYLD-STUB$$objc_msgSend”
+0x2e
movq %rax, -56(%rbp)
+0x32
leaq 13015(%rip), %rax
etc…
I see this on my other Mac in a completely unrelated project as well. In that case I didn’t have the source code like I do here and thought that was the problem.