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L. Pereira
417a26d20c
* reflect: rawFieldByNameFunc: copy index slice to avoid later overwrites * runtime: Simplify slice growing/appending code Refactor the slice appending function to rely on the slice growing function, and remove branches/loops to use a branchfree variant. Signed-off-by: L. Pereira <l.pereira@fastly.com> * runtime: Remove one branch in sliceAppend() Both branches were equivalent, so guard the overall logic in sliceAppend() with the more general condition. Signed-off-by: L. Pereira <l.pereira@fastly.com> * runtime: Simplify slice growing calculation Use `bits.Len()` rather than `32 - bits.LeadingZeros32()`. They're equivalent, but the Len version is a bit easier to read. Signed-off-by: L. Pereira <l.pereira@fastly.com> * reflect: Always call sliceGrow() in extendSlice() sliceGrow() will return the old slice if its capacity is large enough. Signed-off-by: L. Pereira <l.pereira@fastly.com> --------- Signed-off-by: L. Pereira <l.pereira@fastly.com> Co-authored-by: Damian Gryski <damian@gryski.com>
20 lines
565 B
Plaintext
20 lines
565 B
Plaintext
foo is nil? false false
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foo: len=4 cap=4 data: 1 2 4 5
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bar: len=3 cap=5 data: 0 0 0
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foo[1:2]: len=1 cap=3 data: 2
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sum foo: 12
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copy foo -> bar: 3
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bar: len=3 cap=5 data: 1 2 4
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slice is nil? true true
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grow: len=0 cap=0 data:
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grow: len=1 cap=2 data: 42
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grow: len=3 cap=4 data: 42 -1 -2
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grow: len=7 cap=8 data: 42 -1 -2 1 2 4 5
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grow: len=7 cap=8 data: 42 -1 -2 1 2 4 5
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grow: len=14 cap=16 data: 42 -1 -2 1 2 4 5 42 -1 -2 1 2 4 5
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bytes: len=6 cap=8 data: 1 2 3 102 111 111
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slice to array pointer: 1 -2 20 4
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unsafe.Add array: 1 5 8 4
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unsafe.Slice array: 3 3 9 15 4
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len: 0
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