| 1 | """Methods on YSH Dict"""
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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_e, value_t, Obj)
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| 6 | from _devbuild.gen.syntax_asdl import loc
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| 7 |
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| 8 | from core import error
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| 9 | from core import vm
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| 10 | from frontend import typed_args
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| 11 | from mycpp import mylib, mops
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| 12 | from mycpp.mylib import log, tagswitch
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| 13 | from ysh import val_ops
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| 14 |
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| 15 | from typing import cast, List
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| 16 |
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| 17 | _ = log
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| 18 |
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| 19 |
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| 20 | class Keys(vm._Callable):
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| 21 |
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| 22 | def __init__(self):
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| 23 | # type: () -> None
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| 24 | pass
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| 25 |
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| 26 | def Call(self, rd):
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| 27 | # type: (typed_args.Reader) -> value_t
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| 28 |
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| 29 | dictionary = rd.PosDict()
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| 30 | rd.Done()
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| 31 |
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| 32 | keys = [value.Str(k) for k in dictionary.keys()] # type: List[value_t]
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| 33 | return value.List(keys)
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| 34 |
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| 35 |
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| 36 | class Values(vm._Callable):
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| 37 |
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| 38 | def __init__(self):
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| 39 | # type: () -> None
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| 40 | pass
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| 41 |
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| 42 | def Call(self, rd):
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| 43 | # type: (typed_args.Reader) -> value_t
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| 44 |
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| 45 | dictionary = rd.PosDict()
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| 46 | rd.Done()
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| 47 |
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| 48 | values = dictionary.values() # type: List[value_t]
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| 49 | return value.List(values)
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| 50 |
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| 51 |
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| 52 | class Erase(vm._Callable):
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| 53 |
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| 54 | def __init__(self):
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| 55 | # type: () -> None
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| 56 | pass
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| 57 |
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| 58 | def Call(self, rd):
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| 59 | # type: (typed_args.Reader) -> value_t
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| 60 |
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| 61 | dictionary = rd.PosDict()
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| 62 | key = rd.PosStr()
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| 63 | rd.Done()
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| 64 |
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| 65 | mylib.dict_erase(dictionary, key)
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| 66 | return value.Null
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| 67 |
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| 68 |
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| 69 | class Clear(vm._Callable):
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| 70 |
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| 71 | def __init__(self):
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| 72 | # type: () -> None
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| 73 | pass
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| 74 |
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| 75 | def Call(self, rd):
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| 76 | # type: (typed_args.Reader) -> value_t
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| 77 |
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| 78 | dictionary = rd.PosDict()
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| 79 | rd.Done()
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| 80 |
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| 81 | dictionary.clear()
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| 82 | return value.Null
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| 83 |
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| 84 |
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| 85 | class Inc(vm._Callable):
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| 86 |
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| 87 | def __init__(self):
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| 88 | # type: () -> None
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| 89 | pass
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| 90 |
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| 91 | def Call(self, rd):
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| 92 | # type: (typed_args.Reader) -> value_t
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| 93 |
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| 94 | dictionary = rd.PosDict()
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| 95 | key = rd.PosStr()
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| 96 | inc_val = rd.OptionalValue()
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| 97 | rd.Done()
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| 98 |
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| 99 | # If inc_val is provided, we treat it as the definitive type of the
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| 100 | # value to be incremented, if it isn't, we rely on the existing
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| 101 | # value in the dictionary (if that doesn't exist, the default is 0)
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| 102 | if inc_val is None:
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| 103 | if key in dictionary:
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| 104 | typed_val = dictionary[key]
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| 105 | else:
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| 106 | typed_val = value.Int(mops.BigInt(0))
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| 107 | else:
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| 108 | typed_val = inc_val
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| 109 |
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| 110 | with tagswitch(typed_val) as case:
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| 111 | if case(value_e.Int):
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| 112 | if inc_val is None:
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| 113 | inc_int = 1
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| 114 | else:
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| 115 | inc_int = val_ops.ToInt(inc_val, '', loc.Missing)
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| 116 | original_int = val_ops.ToInt(dictionary.get(key, value.Int(mops.ZERO)),
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| 117 | 'Inc() expected int',
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| 118 | loc.Missing)
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| 119 | dictionary[key] = value.Int(mops.BigInt(original_int + inc_int))
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| 120 |
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| 121 | elif case(value_e.Float):
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| 122 | if inc_val is None:
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| 123 | inc_float = 1.0
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| 124 | else:
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| 125 | inc_float = val_ops.ToFloat(inc_val, '', loc.Missing)
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| 126 | original_float = val_ops.ToFloat(dictionary.get(key, value.Float(0.0)),
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| 127 | 'Inc() expected int',
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| 128 | loc.Missing)
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| 129 | dictionary[key] = value.Float(original_float + inc_float)
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| 130 | else:
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| 131 | raise error.TypeErr(typed_val, 'inc() expected Int or float',
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| 132 | rd.BlamePos())
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| 133 |
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| 134 | return value.Null
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| 135 |
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| 136 |
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| 137 | class Get(vm._Callable):
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| 138 |
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| 139 | def __init__(self):
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| 140 | # type: () -> None
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| 141 | pass
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| 142 |
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| 143 | def Call(self, rd):
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| 144 | # type: (typed_args.Reader) -> value_t
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| 145 |
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| 146 | obj = rd.PosValue()
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| 147 | key = rd.PosStr()
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| 148 | default_value = rd.OptionalValue()
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| 149 | rd.Done()
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| 150 |
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| 151 | UP_obj = obj
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| 152 | with tagswitch(obj) as case:
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| 153 | if case(value_e.Dict):
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| 154 | obj = cast(value.Dict, UP_obj)
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| 155 | d = obj.d
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| 156 | elif case(value_e.Obj):
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| 157 | obj = cast(Obj, UP_obj)
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| 158 | d = obj.d
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| 159 | else:
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| 160 | raise error.TypeErr(obj, 'get() expected Dict or Obj',
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| 161 | rd.BlamePos())
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| 162 |
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| 163 | if default_value is None:
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| 164 | default_value = value.Null
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| 165 | return d.get(key, default_value)
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