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prelude: |
a = [nil] * 3
b = Class.new{attr_writer :a, :b, :c}.new
c, d, e, f = nil, nil, nil, nil
benchmark:
array2_2: "c = (a[0], a[1] = 1, 2)"
array2_3: "c = (a[0], a[1] = 1, 2, 3)"
array3_2: "c = (a[0], a[1], a[2] = 1, 2)"
array3_3: "c = (a[0], a[1], a[2] = 1, 2, 3)"
attr2_2: "c = (b.a, b.b = 1, 2)"
attr2_3: "c = (b.a, b.b = 1, 2, 3)"
attr3_2: "c = (b.a, b.b, b.c = 1, 2)"
attr3_3: "c = (b.a, b.b, b.c = 1, 2, 3)"
lvar2_2: "c = (d, e = 1, 2)"
lvar2_3: "c = (d, e = 1, 2, 3)"
lvar3_2: "c = (d, e, f = 1, 2)"
lvar3_3: "c = (d, e, f = 1, 2, 3)"
array2_2p: "(a[0], a[1] = 1, 2; nil)"
array2_3p: "(a[0], a[1] = 1, 2, 3; nil)"
array3_2p: "(a[0], a[1], a[2] = 1, 2; nil)"
array3_3p: "(a[0], a[1], a[2] = 1, 2, 3; nil)"
attr2_2p: "(b.a, b.b = 1, 2; nil)"
attr2_3p: "(b.a, b.b = 1, 2, 3; nil)"
attr3_2p: "(b.a, b.b, b.c = 1, 2; nil)"
attr3_3p: "(b.a, b.b, b.c = 1, 2, 3; nil)"
lvar2_2p: "(d, e = 1, 2; nil)"
lvar2_3p: "(d, e = 1, 2, 3; nil)"
lvar3_2p: "(d, e, f = 1, 2; nil)"
lvar3_3p: "(d, e, f = 1, 2, 3; nil)"
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