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Case versus If in Ruby
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| n = 1 (last clause matches) | |
| if: 7.4821e-07 | |
| threequal_if: 1.6830500000000001e-06 | |
| case: 3.9176999999999997e-07 | |
| n = 15 (first clause matches) | |
| if: 3.7357000000000003e-07 | |
| threequal_if: 5.0263e-07 | |
| case: 4.3348e-07 |
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| == disasm: <RubyVM::InstructionSequence:<main>@./case.rb>=============== | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 15 | |
| 0004 setlocal_OP__WC__0 2 | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal_OP__WC__0 2 | |
| 0010 dup | |
| 0011 opt_case_dispatch <cdhash>, 35 | |
| 0014 dup ( 3) | |
| 0015 putobject 15 | |
| 0017 checkmatch 2 | |
| 0019 branchif 42 | |
| 0021 dup ( 5) | |
| 0022 putobject 5 | |
| 0024 checkmatch 2 | |
| 0026 branchif 49 | |
| 0028 dup ( 7) | |
| 0029 putobject 3 | |
| 0031 checkmatch 2 | |
| 0033 branchif 56 | |
| 0035 pop ( 10) | |
| 0036 trace 1 | |
| 0038 getlocal_OP__WC__0 2 | |
| 0040 leave | |
| 0041 pop | |
| 0042 pop ( 11) | |
| 0043 trace 1 ( 4) | |
| 0045 putstring "fifteen" | |
| 0047 leave ( 11) | |
| 0048 pop | |
| 0049 pop | |
| 0050 trace 1 ( 6) | |
| 0052 putstring "five" | |
| 0054 leave ( 11) | |
| 0055 pop | |
| 0056 pop | |
| 0057 trace 1 ( 8) | |
| 0059 putstring "three" | |
| 0061 leave ( 10) |
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| number = 15 | |
| case number | |
| when 15 | |
| 'fifteen' | |
| when 5 | |
| 'five' | |
| when 3 | |
| 'three' | |
| else | |
| number | |
| end |
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| puts "CASE\n" | |
| seq = RubyVM::InstructionSequence.compile_file("./case.rb") | |
| puts seq.disassemble | |
| puts "IF\n" | |
| seq = RubyVM::InstructionSequence.compile_file("./if.rb") | |
| puts seq.disassemble |
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| module Fleem | |
| def self.case(number) | |
| case number | |
| when 15 | |
| :fleem | |
| when 14 | |
| :fleem | |
| when 13 | |
| :fleem | |
| when 12 | |
| :fleem | |
| when 11 | |
| :fleem | |
| when 10 | |
| :fleem | |
| when 9 | |
| :fleem | |
| when 8 | |
| :fleem | |
| when 7 | |
| :fleem | |
| when 6 | |
| :fleem | |
| when 5 | |
| :fleem | |
| when 4 | |
| :fleem | |
| when 3 | |
| :fleem | |
| when 2 | |
| :fleem | |
| when 1 | |
| :fleem | |
| else | |
| number | |
| end | |
| end | |
| def self.if(number) | |
| if number == 15 | |
| :fleem | |
| elsif number == 14 | |
| :fleem | |
| elsif number == 13 | |
| :fleem | |
| elsif number == 12 | |
| :fleem | |
| elsif number == 11 | |
| :fleem | |
| elsif number == 10 | |
| :fleem | |
| elsif number == 9 | |
| :fleem | |
| elsif number == 8 | |
| :fleem | |
| elsif number == 7 | |
| :fleem | |
| elsif number == 6 | |
| :fleem | |
| elsif number == 5 | |
| :fleem | |
| elsif number == 4 | |
| :fleem | |
| elsif number == 3 | |
| :fleem | |
| elsif number == 2 | |
| :fleem | |
| elsif number == 1 | |
| :fleem | |
| else | |
| number | |
| end | |
| end | |
| def self.threequal_if(number) | |
| if number === 15 | |
| :fleem | |
| elsif number === 14 | |
| :fleem | |
| elsif number === 13 | |
| :fleem | |
| elsif number === 12 | |
| :fleem | |
| elsif number === 11 | |
| :fleem | |
| elsif number === 10 | |
| :fleem | |
| elsif number === 9 | |
| :fleem | |
| elsif number === 8 | |
| :fleem | |
| elsif number === 7 | |
| :fleem | |
| elsif number === 6 | |
| :fleem | |
| elsif number === 5 | |
| :fleem | |
| elsif number === 4 | |
| :fleem | |
| elsif number === 3 | |
| :fleem | |
| elsif number === 2 | |
| :fleem | |
| elsif number === 1 | |
| :fleem | |
| else | |
| number | |
| end | |
| end | |
| end | |
| require 'benchmark' | |
| def test_method(method, n) | |
| time = Benchmark.realtime { | |
| 100000.times do | |
| Fleem.send method, n | |
| end | |
| } | |
| time/100000 | |
| end | |
| GC.disable | |
| n = 1 | |
| puts "n = #{n}" | |
| puts "if: #{test_method(:if, n)}" | |
| puts "threequal_if: #{test_method(:threequal_if, n)}" | |
| puts "case: #{test_method(:case, n)}" | |
| n = 15 | |
| puts "n = #{n}" | |
| puts "if: #{test_method(:if, n)}" | |
| puts "threequal_if: #{test_method(:threequal_if, n)}" | |
| puts "case: #{test_method(:case, n)}" |
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| == disasm: <RubyVM::InstructionSequence:<main>@./if.rb>================= | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 15 | |
| 0004 setlocal_OP__WC__0 2 | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal_OP__WC__0 2 | |
| 0010 putobject 15 | |
| 0012 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0014 branchunless 22 | |
| 0016 trace 1 ( 3) | |
| 0018 putstring "fifteen" | |
| 0020 leave ( 2) | |
| 0021 pop | |
| 0022 getlocal_OP__WC__0 2 ( 4) | |
| 0024 putobject 5 | |
| 0026 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0028 branchunless 36 | |
| 0030 trace 1 ( 5) | |
| 0032 putstring "five" | |
| 0034 leave ( 4) | |
| 0035 pop | |
| 0036 getlocal_OP__WC__0 2 ( 6) | |
| 0038 putobject 3 | |
| 0040 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0042 branchunless 50 | |
| 0044 trace 1 ( 7) | |
| 0046 putstring "three" | |
| 0048 leave ( 6) | |
| 0049 pop | |
| 0050 trace 1 ( 9) | |
| 0052 getlocal_OP__WC__0 2 | |
| 0054 leave |
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| number = 15 | |
| if number == 15 | |
| 'fifteen' | |
| elsif number == 5 | |
| 'five' | |
| elsif number == 3 | |
| 'three' | |
| else | |
| number | |
| end |
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| THREEQUAL_IF_15 | |
| == disasm: <RubyVM::InstructionSequence:<main>@./threequal_if_15.rb>==== | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 15 | |
| 0004 setlocal_OP__WC__0 2 | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal_OP__WC__0 2 | |
| 0010 putobject 15 | |
| 0012 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0014 branchunless 22 | |
| 0016 trace 1 ( 3) | |
| 0018 putobject :fleem | |
| 0020 leave ( 2) | |
| 0021 pop | |
| 0022 getlocal_OP__WC__0 2 ( 4) | |
| 0024 putobject 14 | |
| 0026 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0028 branchunless 36 | |
| 0030 trace 1 ( 5) | |
| 0032 putobject :fleem | |
| 0034 leave ( 4) | |
| 0035 pop | |
| 0036 getlocal_OP__WC__0 2 ( 6) | |
| 0038 putobject 13 | |
| 0040 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0042 branchunless 50 | |
| 0044 trace 1 ( 7) | |
| 0046 putobject :fleem | |
| 0048 leave ( 6) | |
| 0049 pop | |
| 0050 getlocal_OP__WC__0 2 ( 8) | |
| 0052 putobject 12 | |
| 0054 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0056 branchunless 64 | |
| 0058 trace 1 ( 9) | |
| 0060 putobject :fleem | |
| 0062 leave ( 8) | |
| 0063 pop | |
| 0064 getlocal_OP__WC__0 2 ( 10) | |
| 0066 putobject 11 | |
| 0068 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0070 branchunless 78 | |
| 0072 trace 1 ( 11) | |
| 0074 putobject :fleem | |
| 0076 leave ( 10) | |
| 0077 pop | |
| 0078 getlocal_OP__WC__0 2 ( 12) | |
| 0080 putobject 10 | |
| 0082 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0084 branchunless 92 | |
| 0086 trace 1 ( 13) | |
| 0088 putobject :fleem | |
| 0090 leave ( 12) | |
| 0091 pop | |
| 0092 getlocal_OP__WC__0 2 ( 14) | |
| 0094 putobject 9 | |
| 0096 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0098 branchunless 106 | |
| 0100 trace 1 ( 15) | |
| 0102 putobject :fleem | |
| 0104 leave ( 14) | |
| 0105 pop | |
| 0106 getlocal_OP__WC__0 2 ( 16) | |
| 0108 putobject 8 | |
| 0110 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0112 branchunless 120 | |
| 0114 trace 1 ( 17) | |
| 0116 putobject :fleem | |
| 0118 leave ( 16) | |
| 0119 pop | |
| 0120 getlocal_OP__WC__0 2 ( 18) | |
| 0122 putobject 7 | |
| 0124 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0126 branchunless 134 | |
| 0128 trace 1 ( 19) | |
| 0130 putobject :fleem | |
| 0132 leave ( 18) | |
| 0133 pop | |
| 0134 getlocal_OP__WC__0 2 ( 20) | |
| 0136 putobject 6 | |
| 0138 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0140 branchunless 148 | |
| 0142 trace 1 ( 21) | |
| 0144 putobject :fleem | |
| 0146 leave ( 20) | |
| 0147 pop | |
| 0148 getlocal_OP__WC__0 2 ( 22) | |
| 0150 putobject 5 | |
| 0152 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0154 branchunless 162 | |
| 0156 trace 1 ( 23) | |
| 0158 putobject :fleem | |
| 0160 leave ( 22) | |
| 0161 pop | |
| 0162 getlocal_OP__WC__0 2 ( 24) | |
| 0164 putobject 4 | |
| 0166 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0168 branchunless 176 | |
| 0170 trace 1 ( 25) | |
| 0172 putobject :fleem | |
| 0174 leave ( 24) | |
| 0175 pop | |
| 0176 getlocal_OP__WC__0 2 ( 26) | |
| 0178 putobject 3 | |
| 0180 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0182 branchunless 190 | |
| 0184 trace 1 ( 27) | |
| 0186 putobject :fleem | |
| 0188 leave ( 26) | |
| 0189 pop | |
| 0190 getlocal_OP__WC__0 2 ( 28) | |
| 0192 putobject 2 | |
| 0194 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0196 branchunless 204 | |
| 0198 trace 1 ( 29) | |
| 0200 putobject :fleem | |
| 0202 leave ( 28) | |
| 0203 pop | |
| 0204 getlocal_OP__WC__0 2 ( 30) | |
| 0206 putobject_OP_INT2FIX_O_1_C_ | |
| 0207 opt_send_simple <callinfo!mid:===, argc:1, ARGS_SKIP> | |
| 0209 branchunless 217 | |
| 0211 trace 1 ( 31) | |
| 0213 putobject :fleem | |
| 0215 leave ( 30) | |
| 0216 pop | |
| 0217 trace 1 ( 33) | |
| 0219 getlocal_OP__WC__0 2 | |
| 0221 leave | |
| IF_15 | |
| == disasm: <RubyVM::InstructionSequence:<main>@./if_15.rb>============== | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 15 | |
| 0004 setlocal_OP__WC__0 2 | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal_OP__WC__0 2 | |
| 0010 putobject 15 | |
| 0012 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0014 branchunless 22 | |
| 0016 trace 1 ( 3) | |
| 0018 putobject :fleem | |
| 0020 leave ( 2) | |
| 0021 pop | |
| 0022 getlocal_OP__WC__0 2 ( 4) | |
| 0024 putobject 14 | |
| 0026 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0028 branchunless 36 | |
| 0030 trace 1 ( 5) | |
| 0032 putobject :fleem | |
| 0034 leave ( 4) | |
| 0035 pop | |
| 0036 getlocal_OP__WC__0 2 ( 6) | |
| 0038 putobject 13 | |
| 0040 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0042 branchunless 50 | |
| 0044 trace 1 ( 7) | |
| 0046 putobject :fleem | |
| 0048 leave ( 6) | |
| 0049 pop | |
| 0050 getlocal_OP__WC__0 2 ( 8) | |
| 0052 putobject 12 | |
| 0054 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0056 branchunless 64 | |
| 0058 trace 1 ( 9) | |
| 0060 putobject :fleem | |
| 0062 leave ( 8) | |
| 0063 pop | |
| 0064 getlocal_OP__WC__0 2 ( 10) | |
| 0066 putobject 11 | |
| 0068 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0070 branchunless 78 | |
| 0072 trace 1 ( 11) | |
| 0074 putobject :fleem | |
| 0076 leave ( 10) | |
| 0077 pop | |
| 0078 getlocal_OP__WC__0 2 ( 12) | |
| 0080 putobject 10 | |
| 0082 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0084 branchunless 92 | |
| 0086 trace 1 ( 13) | |
| 0088 putobject :fleem | |
| 0090 leave ( 12) | |
| 0091 pop | |
| 0092 getlocal_OP__WC__0 2 ( 14) | |
| 0094 putobject 9 | |
| 0096 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0098 branchunless 106 | |
| 0100 trace 1 ( 15) | |
| 0102 putobject :fleem | |
| 0104 leave ( 14) | |
| 0105 pop | |
| 0106 getlocal_OP__WC__0 2 ( 16) | |
| 0108 putobject 8 | |
| 0110 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0112 branchunless 120 | |
| 0114 trace 1 ( 17) | |
| 0116 putobject :fleem | |
| 0118 leave ( 16) | |
| 0119 pop | |
| 0120 getlocal_OP__WC__0 2 ( 18) | |
| 0122 putobject 7 | |
| 0124 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0126 branchunless 134 | |
| 0128 trace 1 ( 19) | |
| 0130 putobject :fleem | |
| 0132 leave ( 18) | |
| 0133 pop | |
| 0134 getlocal_OP__WC__0 2 ( 20) | |
| 0136 putobject 6 | |
| 0138 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0140 branchunless 148 | |
| 0142 trace 1 ( 21) | |
| 0144 putobject :fleem | |
| 0146 leave ( 20) | |
| 0147 pop | |
| 0148 getlocal_OP__WC__0 2 ( 22) | |
| 0150 putobject 5 | |
| 0152 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0154 branchunless 162 | |
| 0156 trace 1 ( 23) | |
| 0158 putobject :fleem | |
| 0160 leave ( 22) | |
| 0161 pop | |
| 0162 getlocal_OP__WC__0 2 ( 24) | |
| 0164 putobject 4 | |
| 0166 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0168 branchunless 176 | |
| 0170 trace 1 ( 25) | |
| 0172 putobject :fleem | |
| 0174 leave ( 24) | |
| 0175 pop | |
| 0176 getlocal_OP__WC__0 2 ( 26) | |
| 0178 putobject 3 | |
| 0180 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0182 branchunless 190 | |
| 0184 trace 1 ( 27) | |
| 0186 putobject :fleem | |
| 0188 leave ( 26) | |
| 0189 pop | |
| 0190 getlocal_OP__WC__0 2 ( 28) | |
| 0192 putobject 2 | |
| 0194 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0196 branchunless 204 | |
| 0198 trace 1 ( 29) | |
| 0200 putobject :fleem | |
| 0202 leave ( 28) | |
| 0203 pop | |
| 0204 getlocal_OP__WC__0 2 ( 30) | |
| 0206 putobject_OP_INT2FIX_O_1_C_ | |
| 0207 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0209 branchunless 217 | |
| 0211 trace 1 ( 31) | |
| 0213 putobject :fleem | |
| 0215 leave ( 30) | |
| 0216 pop | |
| 0217 trace 1 ( 33) | |
| 0219 getlocal_OP__WC__0 2 | |
| 0221 leave |
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| LONG_CASE_1 | |
| == disasm: <RubyVM::InstructionSequence:<main>@./long_case_1.rb>======== | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 1 | |
| 0004 setlocal number | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal number | |
| 0010 dup | |
| 0011 opt_case_dispatch <cdhash>, 194 | |
| 0014 putobject 15 ( 3) | |
| 0016 topn 1 | |
| 0018 send :===, 1, nil, 0, <ic:0> | |
| 0024 branchif 201 | |
| 0026 putobject 14 ( 5) | |
| 0028 topn 1 | |
| 0030 send :===, 1, nil, 0, <ic:1> | |
| 0036 branchif 208 | |
| 0038 putobject 13 ( 7) | |
| 0040 topn 1 | |
| 0042 send :===, 1, nil, 0, <ic:2> | |
| 0048 branchif 215 | |
| 0050 putobject 12 ( 9) | |
| 0052 topn 1 | |
| 0054 send :===, 1, nil, 0, <ic:3> | |
| 0060 branchif 222 | |
| 0062 putobject 11 ( 11) | |
| 0064 topn 1 | |
| 0066 send :===, 1, nil, 0, <ic:4> | |
| 0072 branchif 229 | |
| 0074 putobject 10 ( 13) | |
| 0076 topn 1 | |
| 0078 send :===, 1, nil, 0, <ic:5> | |
| 0084 branchif 236 | |
| 0086 putobject 9 ( 15) | |
| 0088 topn 1 | |
| 0090 send :===, 1, nil, 0, <ic:6> | |
| 0096 branchif 243 | |
| 0098 putobject 8 ( 17) | |
| 0100 topn 1 | |
| 0102 send :===, 1, nil, 0, <ic:7> | |
| 0108 branchif 250 | |
| 0110 putobject 7 ( 19) | |
| 0112 topn 1 | |
| 0114 send :===, 1, nil, 0, <ic:8> | |
| 0120 branchif 257 | |
| 0122 putobject 6 ( 21) | |
| 0124 topn 1 | |
| 0126 send :===, 1, nil, 0, <ic:9> | |
| 0132 branchif 264 | |
| 0134 putobject 5 ( 23) | |
| 0136 topn 1 | |
| 0138 send :===, 1, nil, 0, <ic:10> | |
| 0144 branchif 271 | |
| 0146 putobject 4 ( 25) | |
| 0148 topn 1 | |
| 0150 send :===, 1, nil, 0, <ic:11> | |
| 0156 branchif 278 | |
| 0158 putobject 3 ( 27) | |
| 0160 topn 1 | |
| 0162 send :===, 1, nil, 0, <ic:12> | |
| 0168 branchif 285 | |
| 0170 putobject 2 ( 29) | |
| 0172 topn 1 | |
| 0174 send :===, 1, nil, 0, <ic:13> | |
| 0180 branchif 292 | |
| 0182 putobject 1 ( 31) | |
| 0184 topn 1 | |
| 0186 send :===, 1, nil, 0, <ic:14> | |
| 0192 branchif 299 | |
| 0194 pop ( 34) | |
| 0195 trace 1 | |
| 0197 getlocal number | |
| 0199 leave | |
| 0200 pop | |
| 0201 pop ( 35) | |
| 0202 trace 1 ( 4) | |
| 0204 putobject :fleem | |
| 0206 leave ( 35) | |
| 0207 pop | |
| 0208 pop | |
| 0209 trace 1 ( 6) | |
| 0211 putobject :fleem | |
| 0213 leave ( 35) | |
| 0214 pop | |
| 0215 pop | |
| 0216 trace 1 ( 8) | |
| 0218 putobject :fleem | |
| 0220 leave ( 35) | |
| 0221 pop | |
| 0222 pop | |
| 0223 trace 1 ( 10) | |
| 0225 putobject :fleem | |
| 0227 leave ( 35) | |
| 0228 pop | |
| 0229 pop | |
| 0230 trace 1 ( 12) | |
| 0232 putobject :fleem | |
| 0234 leave ( 35) | |
| 0235 pop | |
| 0236 pop | |
| 0237 trace 1 ( 14) | |
| 0239 putobject :fleem | |
| 0241 leave ( 35) | |
| 0242 pop | |
| 0243 pop | |
| 0244 trace 1 ( 16) | |
| 0246 putobject :fleem | |
| 0248 leave ( 35) | |
| 0249 pop | |
| 0250 pop | |
| 0251 trace 1 ( 18) | |
| 0253 putobject :fleem | |
| 0255 leave ( 35) | |
| 0256 pop | |
| 0257 pop | |
| 0258 trace 1 ( 20) | |
| 0260 putobject :fleem | |
| 0262 leave ( 35) | |
| 0263 pop | |
| 0264 pop | |
| 0265 trace 1 ( 22) | |
| 0267 putobject :fleem | |
| 0269 leave ( 35) | |
| 0270 pop | |
| 0271 pop | |
| 0272 trace 1 ( 24) | |
| 0274 putobject :fleem | |
| 0276 leave ( 35) | |
| 0277 pop | |
| 0278 pop | |
| 0279 trace 1 ( 26) | |
| 0281 putobject :fleem | |
| 0283 leave ( 35) | |
| 0284 pop | |
| 0285 pop | |
| 0286 trace 1 ( 28) | |
| 0288 putobject :fleem | |
| 0290 leave ( 35) | |
| 0291 pop | |
| 0292 pop | |
| 0293 trace 1 ( 30) | |
| 0295 putobject :fleem | |
| 0297 leave ( 35) | |
| 0298 pop | |
| 0299 pop | |
| 0300 trace 1 ( 32) | |
| 0302 putobject :fleem | |
| 0304 leave ( 34) | |
| LONG_CASE_15 | |
| == disasm: <RubyVM::InstructionSequence:<main>@./long_case_15.rb>======= | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] number | |
| 0000 trace 1 ( 1) | |
| 0002 putobject 1 | |
| 0004 setlocal number | |
| 0006 trace 1 ( 2) | |
| 0008 getlocal number | |
| 0010 dup | |
| 0011 opt_case_dispatch <cdhash>, 194 | |
| 0014 putobject 15 ( 3) | |
| 0016 topn 1 | |
| 0018 send :===, 1, nil, 0, <ic:0> | |
| 0024 branchif 201 | |
| 0026 putobject 14 ( 5) | |
| 0028 topn 1 | |
| 0030 send :===, 1, nil, 0, <ic:1> | |
| 0036 branchif 208 | |
| 0038 putobject 13 ( 7) | |
| 0040 topn 1 | |
| 0042 send :===, 1, nil, 0, <ic:2> | |
| 0048 branchif 215 | |
| 0050 putobject 12 ( 9) | |
| 0052 topn 1 | |
| 0054 send :===, 1, nil, 0, <ic:3> | |
| 0060 branchif 222 | |
| 0062 putobject 11 ( 11) | |
| 0064 topn 1 | |
| 0066 send :===, 1, nil, 0, <ic:4> | |
| 0072 branchif 229 | |
| 0074 putobject 10 ( 13) | |
| 0076 topn 1 | |
| 0078 send :===, 1, nil, 0, <ic:5> | |
| 0084 branchif 236 | |
| 0086 putobject 9 ( 15) | |
| 0088 topn 1 | |
| 0090 send :===, 1, nil, 0, <ic:6> | |
| 0096 branchif 243 | |
| 0098 putobject 8 ( 17) | |
| 0100 topn 1 | |
| 0102 send :===, 1, nil, 0, <ic:7> | |
| 0108 branchif 250 | |
| 0110 putobject 7 ( 19) | |
| 0112 topn 1 | |
| 0114 send :===, 1, nil, 0, <ic:8> | |
| 0120 branchif 257 | |
| 0122 putobject 6 ( 21) | |
| 0124 topn 1 | |
| 0126 send :===, 1, nil, 0, <ic:9> | |
| 0132 branchif 264 | |
| 0134 putobject 5 ( 23) | |
| 0136 topn 1 | |
| 0138 send :===, 1, nil, 0, <ic:10> | |
| 0144 branchif 271 | |
| 0146 putobject 4 ( 25) | |
| 0148 topn 1 | |
| 0150 send :===, 1, nil, 0, <ic:11> | |
| 0156 branchif 278 | |
| 0158 putobject 3 ( 27) | |
| 0160 topn 1 | |
| 0162 send :===, 1, nil, 0, <ic:12> | |
| 0168 branchif 285 | |
| 0170 putobject 2 ( 29) | |
| 0172 topn 1 | |
| 0174 send :===, 1, nil, 0, <ic:13> | |
| 0180 branchif 292 | |
| 0182 putobject 1 ( 31) | |
| 0184 topn 1 | |
| 0186 send :===, 1, nil, 0, <ic:14> | |
| 0192 branchif 299 | |
| 0194 pop ( 34) | |
| 0195 trace 1 | |
| 0197 getlocal number | |
| 0199 leave | |
| 0200 pop | |
| 0201 pop ( 35) | |
| 0202 trace 1 ( 4) | |
| 0204 putobject :fleem | |
| 0206 leave ( 35) | |
| 0207 pop | |
| 0208 pop | |
| 0209 trace 1 ( 6) | |
| 0211 putobject :fleem | |
| 0213 leave ( 35) | |
| 0214 pop | |
| 0215 pop | |
| 0216 trace 1 ( 8) | |
| 0218 putobject :fleem | |
| 0220 leave ( 35) | |
| 0221 pop | |
| 0222 pop | |
| 0223 trace 1 ( 10) | |
| 0225 putobject :fleem | |
| 0227 leave ( 35) | |
| 0228 pop | |
| 0229 pop | |
| 0230 trace 1 ( 12) | |
| 0232 putobject :fleem | |
| 0234 leave ( 35) | |
| 0235 pop | |
| 0236 pop | |
| 0237 trace 1 ( 14) | |
| 0239 putobject :fleem | |
| 0241 leave ( 35) | |
| 0242 pop | |
| 0243 pop | |
| 0244 trace 1 ( 16) | |
| 0246 putobject :fleem | |
| 0248 leave ( 35) | |
| 0249 pop | |
| 0250 pop | |
| 0251 trace 1 ( 18) | |
| 0253 putobject :fleem | |
| 0255 leave ( 35) | |
| 0256 pop | |
| 0257 pop | |
| 0258 trace 1 ( 20) | |
| 0260 putobject :fleem | |
| 0262 leave ( 35) | |
| 0263 pop | |
| 0264 pop | |
| 0265 trace 1 ( 22) | |
| 0267 putobject :fleem | |
| 0269 leave ( 35) | |
| 0270 pop | |
| 0271 pop | |
| 0272 trace 1 ( 24) | |
| 0274 putobject :fleem | |
| 0276 leave ( 35) | |
| 0277 pop | |
| 0278 pop | |
| 0279 trace 1 ( 26) | |
| 0281 putobject :fleem | |
| 0283 leave ( 35) | |
| 0284 pop | |
| 0285 pop | |
| 0286 trace 1 ( 28) | |
| 0288 putobject :fleem | |
| 0290 leave ( 35) | |
| 0291 pop | |
| 0292 pop | |
| 0293 trace 1 ( 30) | |
| 0295 putobject :fleem | |
| 0297 leave ( 35) | |
| 0298 pop | |
| 0299 pop | |
| 0300 trace 1 ( 32) | |
| 0302 putobject :fleem | |
| 0304 leave |
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| def new_if(predicate, then_clause, else_clause) | |
| if predicate | |
| then_clause | |
| else | |
| else_clause | |
| end | |
| end |
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| irb(main):012:0> x = 0 | |
| => 0 | |
| irb(main):013:0> new_if(true, x+=1, x+=2) | |
| => 1 | |
| irb(main):014:0> x | |
| => 3 |
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| def new_if(predicate, then_clause, else_clause) | |
| if predicate | |
| then_clause.call | |
| else | |
| else_clause.call | |
| end | |
| end |
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| irb(main):015:0> x = 0 | |
| => 0 | |
| irb(main):016:0> new_if(true, lambda { x+=1 }, lambda { x+=2 }) | |
| => 1 | |
| irb(main):017:0> x | |
| => 1 |
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| == disasm: <RubyVM::InstructionSequence:<main>@./unless.rb>============= | |
| local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1) | |
| [ 2] n | |
| 0000 trace 1 ( 1) | |
| 0002 putobject_OP_INT2FIX_O_1_C_ | |
| 0003 setlocal_OP__WC__0 2 | |
| 0005 trace 1 ( 2) | |
| 0007 getlocal_OP__WC__0 2 | |
| 0009 putobject_OP_INT2FIX_O_1_C_ | |
| 0010 opt_eq <callinfo!mid:==, argc:1, ARGS_SKIP> | |
| 0012 branchunless 17 | |
| 0014 putnil | |
| 0015 leave | |
| 0016 pop | |
| 0017 trace 1 ( 3) | |
| 0019 putself | |
| 0020 putstring "sadface" | |
| 0022 opt_send_simple <callinfo!mid:puts, argc:1, FCALL|ARGS_SKIP> | |
| 0024 leave |
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| n = 1 | |
| unless n == 1 | |
| puts "sadface" | |
| end |
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