| 1 | """Methods on YSH List"""
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| 2 |
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| 3 | from __future__ import print_function
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| 4 |
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| 5 | from _devbuild.gen.value_asdl import (value, value_t)
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| 6 |
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| 7 | from core import num
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| 8 | from core import vm
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| 9 | from frontend import typed_args
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| 10 | from mycpp import mops
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| 11 | from mycpp.mylib import log
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| 12 | from ysh import val_ops
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| 13 |
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| 14 | _ = log
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| 15 |
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| 16 |
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| 17 | class Append(vm._Callable):
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| 18 |
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| 19 | def __init__(self):
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| 20 | # type: () -> None
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| 21 | pass
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| 22 |
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| 23 | def Call(self, rd):
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| 24 | # type: (typed_args.Reader) -> value_t
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| 25 |
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| 26 | items = rd.PosList()
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| 27 | to_append = rd.PosValue()
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| 28 | rd.Done()
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| 29 |
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| 30 | items.append(to_append)
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| 31 | return value.Null
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| 32 |
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| 33 |
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| 34 | class Extend(vm._Callable):
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| 35 |
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| 36 | def __init__(self):
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| 37 | # type: () -> None
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| 38 | pass
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| 39 |
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| 40 | def Call(self, rd):
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| 41 | # type: (typed_args.Reader) -> value_t
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| 42 |
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| 43 | a = rd.PosList()
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| 44 | b = rd.PosList()
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| 45 | rd.Done()
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| 46 |
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| 47 | a.extend(b)
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| 48 | return value.Null
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| 49 |
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| 50 |
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| 51 | class Pop(vm._Callable):
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| 52 |
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| 53 | def __init__(self):
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| 54 | # type: () -> None
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| 55 | pass
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| 56 |
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| 57 | def Call(self, rd):
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| 58 | # type: (typed_args.Reader) -> value_t
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| 59 |
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| 60 | items = rd.PosList()
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| 61 | rd.Done()
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| 62 |
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| 63 | return items.pop()
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| 64 |
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| 65 |
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| 66 | class Reverse(vm._Callable):
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| 67 |
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| 68 | def __init__(self):
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| 69 | # type: () -> None
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| 70 | pass
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| 71 |
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| 72 | def Call(self, rd):
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| 73 | # type: (typed_args.Reader) -> value_t
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| 74 |
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| 75 | li = rd.PosList()
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| 76 | rd.Done()
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| 77 |
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| 78 | li.reverse()
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| 79 |
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| 80 | return value.Null
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| 81 |
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| 82 |
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| 83 | class IndexOf(vm._Callable):
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| 84 |
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| 85 | def __init__(self):
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| 86 | # type: () -> None
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| 87 | pass
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| 88 |
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| 89 | def Call(self, rd):
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| 90 | # type: (typed_args.Reader) -> value_t
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| 91 |
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| 92 | li = rd.PosList()
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| 93 | needle = rd.PosValue()
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| 94 | rd.Done()
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| 95 | i = 0
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| 96 | while i < len(li):
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| 97 | if val_ops.ExactlyEqual(li[i], needle, rd.LeftParenToken()):
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| 98 | return num.ToBig(i)
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| 99 | i += 1
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| 100 | return value.Int(mops.MINUS_ONE)
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