| 1 | #!/usr/bin/env python2
|
| 2 | from __future__ import print_function
|
| 3 |
|
| 4 | from _devbuild.gen.runtime_asdl import cmd_value, ProcArgs, Cell
|
| 5 | from _devbuild.gen.syntax_asdl import (loc, loc_t, ArgList, command_t, Token,
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| 6 | debug_frame_t)
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| 7 | from _devbuild.gen.value_asdl import (value, value_e, value_t, RegexMatch, Obj,
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| 8 | cmd_frag, cmd_frag_e, cmd_frag_str,
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| 9 | LiteralBlock)
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| 10 | from core import error
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| 11 | from core.error import e_usage
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| 12 | from frontend import location
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| 13 | from mycpp import mops
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| 14 | from mycpp import mylib
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| 15 | from mycpp.mylib import log, tagswitch, NewDict
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| 16 |
|
| 17 | from typing import Dict, List, Optional, cast
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| 18 |
|
| 19 | _ = log
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| 20 |
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| 21 |
|
| 22 | def DoesNotAccept(proc_args):
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| 23 | # type: (Optional[ProcArgs]) -> None
|
| 24 | if proc_args is not None:
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| 25 | e_usage('got unexpected typed args', proc_args.typed_args.left)
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| 26 |
|
| 27 |
|
| 28 | if 0:
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| 29 |
|
| 30 | def OptionalCommandBlock(cmd_val):
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| 31 | # type: (cmd_value.Argv) -> Optional[value.Command]
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| 32 | """
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| 33 | Unused, the builtins don't take value.Command - they take a command_t CommandFrag
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| 34 | """
|
| 35 | cmd = None # type: Optional[value.Command]
|
| 36 | if cmd_val.proc_args:
|
| 37 | r = ReaderForProc(cmd_val)
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| 38 | cmd = r.OptionalCommandBlock()
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| 39 | r.Done()
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| 40 | return cmd
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| 41 |
|
| 42 |
|
| 43 | def OptionalBlockAsFrag(cmd_val):
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| 44 | # type: (cmd_value.Argv) -> Optional[command_t]
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| 45 | """Helper for cd, etc."""
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| 46 |
|
| 47 | r = ReaderForProc(cmd_val)
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| 48 | cmd = r.OptionalBlockAsFrag()
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| 49 | r.Done()
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| 50 | return cmd
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| 51 |
|
| 52 |
|
| 53 | def RequiredBlockAsFrag(cmd_val):
|
| 54 | # type: (cmd_value.Argv) -> Optional[command_t]
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| 55 | """Helper for try, shopt, etc."""
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| 56 |
|
| 57 | r = ReaderForProc(cmd_val)
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| 58 | cmd = r.RequiredBlockAsFrag()
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| 59 | r.Done()
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| 60 | return cmd
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| 61 |
|
| 62 |
|
| 63 | def GetCommandFrag(bound):
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| 64 | # type: (value.Command) -> command_t
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| 65 |
|
| 66 | frag = bound.frag
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| 67 | with tagswitch(frag) as case:
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| 68 | if case(cmd_frag_e.LiteralBlock):
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| 69 | lit = cast(LiteralBlock, frag)
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| 70 | return lit.brace_group
|
| 71 | elif case(cmd_frag_e.Expr):
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| 72 | expr = cast(cmd_frag.Expr, frag)
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| 73 | return expr.c
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| 74 | else:
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| 75 | raise AssertionError(cmd_frag_str(frag.tag()))
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| 76 |
|
| 77 |
|
| 78 | def ReaderForProc(cmd_val):
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| 79 | # type: (cmd_value.Argv) -> Reader
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| 80 |
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| 81 | proc_args = cmd_val.proc_args
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| 82 |
|
| 83 | if proc_args:
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| 84 | # mycpp rewrite: doesn't understand 'or' pattern
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| 85 | pos_args = (proc_args.pos_args
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| 86 | if proc_args.pos_args is not None else [])
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| 87 | # mycpp rewrite: mycpp should support NewDict() within conditional expression
|
| 88 | if proc_args.named_args is not None:
|
| 89 | named_args = proc_args.named_args
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| 90 | else:
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| 91 | named_args = NewDict()
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| 92 |
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| 93 | arg_list = (proc_args.typed_args if proc_args.typed_args is not None
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| 94 | else ArgList.CreateNull())
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| 95 | block_arg = proc_args.block_arg
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| 96 | else:
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| 97 | pos_args = []
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| 98 | named_args = NewDict()
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| 99 | arg_list = ArgList.CreateNull()
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| 100 | block_arg = None
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| 101 |
|
| 102 | rd = Reader(pos_args, named_args, block_arg, arg_list)
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| 103 |
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| 104 | # Fix location info bug with 'try' or try foo' -- it should get a typed arg
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| 105 | rd.SetFallbackLocation(cmd_val.arg_locs[0])
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| 106 | return rd
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| 107 |
|
| 108 |
|
| 109 | class Reader(object):
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| 110 | """
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| 111 | func f(a Str) { echo hi }
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| 112 |
|
| 113 | is equivalent to
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| 114 |
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| 115 | t = typed_args.Reader(pos_args, named_args)
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| 116 | a = t.PosStr()
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| 117 | t.Done() # checks for no more args
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| 118 |
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| 119 | func f(a Str, b Int, ...args; c=0, d='foo', ...named) { echo hi }
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| 120 | echo hi
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| 121 | }
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| 122 |
|
| 123 | is equivalent to
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| 124 |
|
| 125 | t = typed_args.Reader(pos_args, named_args)
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| 126 | a = t.PosStr()
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| 127 | b = t.PosInt()
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| 128 | args = t.RestPos()
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| 129 |
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| 130 | t.NamedInt('c', 0)
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| 131 | t.NamedStr('d', 'foo')
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| 132 | named = t.RestNamed()
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| 133 |
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| 134 | t.Done()
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| 135 |
|
| 136 | procs have more options:
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| 137 |
|
| 138 | proc p(a, b; a Str, b Int; c=0; block) { echo hi }
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| 139 |
|
| 140 | Builtin procs use:
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| 141 |
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| 142 | - args.Reader() and generated flag_def.py APIs for the words
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| 143 | - typed_args.Reader() for the positional/named typed args, constructed with
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| 144 | ReaderForProc()
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| 145 | """
|
| 146 |
|
| 147 | def __init__(
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| 148 | self,
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| 149 | pos_args, # type: List[value_t]
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| 150 | named_args, # type: Dict[str, value_t]
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| 151 | block_arg, # type: Optional[value_t]
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| 152 | arg_list, # type: ArgList
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| 153 | is_bound=False, # type: bool
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| 154 | ):
|
| 155 | # type: (...) -> None
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| 156 |
|
| 157 | self.pos_args = pos_args
|
| 158 | self.pos_consumed = 0
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| 159 | # TODO: Add LHS of attribute expression to value.BoundFunc and pass
|
| 160 | # that through to here?
|
| 161 | self.is_bound = is_bound
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| 162 | self.named_args = named_args
|
| 163 | self.block_arg = block_arg
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| 164 |
|
| 165 | # Note: may be ArgList.CreateNull()
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| 166 | self.arg_list = arg_list
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| 167 |
|
| 168 | self.fallback_loc = loc.Missing # type: loc_t
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| 169 |
|
| 170 | def SetFallbackLocation(self, blame_loc):
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| 171 | # type: (loc_t) -> None
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| 172 | """ In case of empty ArgList, the location we'll blame """
|
| 173 | self.fallback_loc = blame_loc
|
| 174 |
|
| 175 | def LeftParenToken(self):
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| 176 | # type: () -> Token
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| 177 | """ Used by functions in library/func_misc.py """
|
| 178 | return self.arg_list.left
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| 179 |
|
| 180 | def LeastSpecificLocation(self):
|
| 181 | # type: () -> loc_t
|
| 182 | """Returns the least specific blame location.
|
| 183 |
|
| 184 | Applicable to procs as well.
|
| 185 | """
|
| 186 | # arg_list.left may be None for 'json write', which uses ReaderForProc,
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| 187 | # ArgList.CreateNull()
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| 188 | if self.arg_list.left:
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| 189 | return self.arg_list.left
|
| 190 |
|
| 191 | return self.fallback_loc
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| 192 |
|
| 193 | ### Typed positional args
|
| 194 |
|
| 195 | def BlamePos(self):
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| 196 | # type: () -> loc_t
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| 197 | """Returns the location of the most recently consumed argument.
|
| 198 |
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| 199 | If no arguments have been consumed, the location of the function call
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| 200 | is returned.
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| 201 | """
|
| 202 | pos = self.pos_consumed - 1
|
| 203 | if self.is_bound:
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| 204 | # Token for the first "argument" of a bound function call isn't in
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| 205 | # the same part of the expression
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| 206 | pos -= 1
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| 207 |
|
| 208 | if self.arg_list.pos_args is None:
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| 209 | # PluginCall() and CallConvertFunc() don't have pos_args
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| 210 | return self.LeastSpecificLocation()
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| 211 |
|
| 212 | if 0 <= pos and pos < len(self.arg_list.pos_args):
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| 213 | l = location.TokenForExpr(self.arg_list.pos_args[pos])
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| 214 |
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| 215 | if l is not None:
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| 216 | return l
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| 217 |
|
| 218 | # Fall back on call
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| 219 | return self.LeastSpecificLocation()
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| 220 |
|
| 221 | def PosValue(self):
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| 222 | # type: () -> value_t
|
| 223 | if len(self.pos_args) == 0:
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| 224 | # TODO: Print the builtin name
|
| 225 | raise error.TypeErrVerbose(
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| 226 | 'Expected at least %d typed args, but only got %d' %
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| 227 | (self.pos_consumed + 1, self.pos_consumed),
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| 228 | self.LeastSpecificLocation())
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| 229 |
|
| 230 | self.pos_consumed += 1
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| 231 | val = self.pos_args.pop(0)
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| 232 |
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| 233 | # Should be value.Null
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| 234 | assert val is not None
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| 235 | return val
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| 236 |
|
| 237 | def OptionalValue(self):
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| 238 | # type: () -> Optional[value_t]
|
| 239 | if len(self.pos_args) == 0:
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| 240 | return None
|
| 241 | self.pos_consumed += 1
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| 242 | return self.pos_args.pop(0)
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| 243 |
|
| 244 | def _ToStr(self, val):
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| 245 | # type: (value_t) -> str
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| 246 | if val.tag() == value_e.Str:
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| 247 | return cast(value.Str, val).s
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| 248 |
|
| 249 | raise error.TypeErr(val, 'Arg %d should be a Str' % self.pos_consumed,
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| 250 | self.BlamePos())
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| 251 |
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| 252 | def _ToBool(self, val):
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| 253 | # type: (value_t) -> bool
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| 254 | if val.tag() == value_e.Bool:
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| 255 | return cast(value.Bool, val).b
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| 256 |
|
| 257 | raise error.TypeErr(val, 'Arg %d should be a Bool' % self.pos_consumed,
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| 258 | self.BlamePos())
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| 259 |
|
| 260 | def _ToInt(self, val):
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| 261 | # type: (value_t) -> mops.BigInt
|
| 262 | if val.tag() == value_e.Int:
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| 263 | return cast(value.Int, val).i
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| 264 |
|
| 265 | raise error.TypeErr(val, 'Arg %d should be an Int' % self.pos_consumed,
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| 266 | self.BlamePos())
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| 267 |
|
| 268 | def _ToFloat(self, val):
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| 269 | # type: (value_t) -> float
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| 270 | if val.tag() == value_e.Float:
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| 271 | return cast(value.Float, val).f
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| 272 |
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| 273 | raise error.TypeErr(val,
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| 274 | 'Arg %d should be a Float' % self.pos_consumed,
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| 275 | self.BlamePos())
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| 276 |
|
| 277 | def _ToInternalStringArray(self, val):
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| 278 | # type: (value_t) -> List[str]
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| 279 | if val.tag() == value_e.InternalStringArray:
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| 280 | return cast(value.InternalStringArray, val).strs
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| 281 |
|
| 282 | raise error.TypeErr(
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| 283 | val, 'Arg %d should be an InternalStringArray' % self.pos_consumed,
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| 284 | self.BlamePos())
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| 285 |
|
| 286 | def _ToBashArray(self, val):
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| 287 | # type: (value_t) -> value.BashArray
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| 288 | if val.tag() == value_e.BashArray:
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| 289 | return cast(value.BashArray, val)
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| 290 |
|
| 291 | raise error.TypeErr(val,
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| 292 | 'Arg %d should be a BashArray' % self.pos_consumed,
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| 293 | self.BlamePos())
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| 294 |
|
| 295 | def _ToList(self, val):
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| 296 | # type: (value_t) -> List[value_t]
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| 297 | if val.tag() == value_e.List:
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| 298 | return cast(value.List, val).items
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| 299 |
|
| 300 | raise error.TypeErr(val, 'Arg %d should be a List' % self.pos_consumed,
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| 301 | self.BlamePos())
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| 302 |
|
| 303 | def _ToDict(self, val):
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| 304 | # type: (value_t) -> Dict[str, value_t]
|
| 305 | if val.tag() == value_e.Dict:
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| 306 | return cast(value.Dict, val).d
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| 307 |
|
| 308 | raise error.TypeErr(val, 'Arg %d should be a Dict' % self.pos_consumed,
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| 309 | self.BlamePos())
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| 310 |
|
| 311 | def _ToObj(self, val):
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| 312 | # type: (value_t) -> Obj
|
| 313 | if val.tag() == value_e.Obj:
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| 314 | return cast(Obj, val)
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| 315 |
|
| 316 | raise error.TypeErr(val, 'Arg %d should be a Obj' % self.pos_consumed,
|
| 317 | self.BlamePos())
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| 318 |
|
| 319 | def _ToPlace(self, val):
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| 320 | # type: (value_t) -> value.Place
|
| 321 | if val.tag() == value_e.Place:
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| 322 | return cast(value.Place, val)
|
| 323 |
|
| 324 | raise error.TypeErr(val,
|
| 325 | 'Arg %d should be a Place' % self.pos_consumed,
|
| 326 | self.BlamePos())
|
| 327 |
|
| 328 | def _ToMatch(self, val):
|
| 329 | # type: (value_t) -> RegexMatch
|
| 330 | if val.tag() == value_e.Match:
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| 331 | return cast(RegexMatch, val)
|
| 332 |
|
| 333 | raise error.TypeErr(val,
|
| 334 | 'Arg %d should be a Match' % self.pos_consumed,
|
| 335 | self.BlamePos())
|
| 336 |
|
| 337 | def _ToEggex(self, val):
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| 338 | # type: (value_t) -> value.Eggex
|
| 339 | if val.tag() == value_e.Eggex:
|
| 340 | return cast(value.Eggex, val)
|
| 341 |
|
| 342 | raise error.TypeErr(val,
|
| 343 | 'Arg %d should be an Eggex' % self.pos_consumed,
|
| 344 | self.BlamePos())
|
| 345 |
|
| 346 | def _ToExpr(self, val):
|
| 347 | # type: (value_t) -> value.Expr
|
| 348 | if val.tag() == value_e.Expr:
|
| 349 | return cast(value.Expr, val)
|
| 350 |
|
| 351 | raise error.TypeErr(val, 'Arg %d should be a Expr' % self.pos_consumed,
|
| 352 | self.BlamePos())
|
| 353 |
|
| 354 | def _ToFrame(self, val):
|
| 355 | # type: (value_t) -> Dict[str, Cell]
|
| 356 | if val.tag() == value_e.Frame:
|
| 357 | return cast(value.Frame, val).frame
|
| 358 |
|
| 359 | raise error.TypeErr(val,
|
| 360 | 'Arg %d should be a Frame' % self.pos_consumed,
|
| 361 | self.BlamePos())
|
| 362 |
|
| 363 | def _ToDebugFrame(self, val):
|
| 364 | # type: (value_t) -> debug_frame_t
|
| 365 | if val.tag() == value_e.DebugFrame:
|
| 366 | return cast(value.DebugFrame, val).frame
|
| 367 |
|
| 368 | raise error.TypeErr(
|
| 369 | val, 'Arg %d should be a DebugFrame' % self.pos_consumed,
|
| 370 | self.BlamePos())
|
| 371 |
|
| 372 | def _ToCommandFrag(self, val):
|
| 373 | # type: (value_t) -> command_t
|
| 374 | if val.tag() == value_e.CommandFrag:
|
| 375 | return cast(value.CommandFrag, val).c
|
| 376 |
|
| 377 | # Builtins like shopt, cd, try rely on this, because proc argument
|
| 378 | # evaluation gives you a value.Command, yet they operate on a
|
| 379 | # CommandFrag.
|
| 380 | #
|
| 381 | # In YSH, we do this with the getCommandFrag() builtin, which returns
|
| 382 | # an UNBOUND version of the command. Hm.
|
| 383 |
|
| 384 | if val.tag() == value_e.Command:
|
| 385 | bound = cast(value.Command, val)
|
| 386 | return GetCommandFrag(bound)
|
| 387 |
|
| 388 | raise error.TypeErr(
|
| 389 | val, 'Arg %d should be a CommandFrag' % self.pos_consumed,
|
| 390 | self.BlamePos())
|
| 391 |
|
| 392 | def _ToCommand(self, val):
|
| 393 | # type: (value_t) -> value.Command
|
| 394 | if val.tag() == value_e.Command:
|
| 395 | return cast(value.Command, val)
|
| 396 | raise error.TypeErr(val,
|
| 397 | 'Arg %d should be a Command' % self.pos_consumed,
|
| 398 | self.BlamePos())
|
| 399 |
|
| 400 | def PosStr(self):
|
| 401 | # type: () -> str
|
| 402 | val = self.PosValue()
|
| 403 | return self._ToStr(val)
|
| 404 |
|
| 405 | def OptionalStr(self, default_=None):
|
| 406 | # type: (Optional[str]) -> Optional[str]
|
| 407 | val = self.OptionalValue()
|
| 408 | if val is None:
|
| 409 | return default_
|
| 410 | return self._ToStr(val)
|
| 411 |
|
| 412 | def PosBool(self):
|
| 413 | # type: () -> bool
|
| 414 | val = self.PosValue()
|
| 415 | return self._ToBool(val)
|
| 416 |
|
| 417 | def PosInt(self):
|
| 418 | # type: () -> mops.BigInt
|
| 419 | val = self.PosValue()
|
| 420 | return self._ToInt(val)
|
| 421 |
|
| 422 | def OptionalInt(self, default_):
|
| 423 | # type: (int) -> mops.BigInt
|
| 424 | val = self.OptionalValue()
|
| 425 | if val is None:
|
| 426 | return mops.IntWiden(default_)
|
| 427 | return self._ToInt(val)
|
| 428 |
|
| 429 | def PosFloat(self):
|
| 430 | # type: () -> float
|
| 431 | val = self.PosValue()
|
| 432 | return self._ToFloat(val)
|
| 433 |
|
| 434 | def PosInternalStringArray(self):
|
| 435 | # type: () -> List[str]
|
| 436 | val = self.PosValue()
|
| 437 | return self._ToInternalStringArray(val)
|
| 438 |
|
| 439 | def PosBashArray(self):
|
| 440 | # type: () -> value.BashArray
|
| 441 | val = self.PosValue()
|
| 442 | return self._ToBashArray(val)
|
| 443 |
|
| 444 | def PosList(self):
|
| 445 | # type: () -> List[value_t]
|
| 446 | val = self.PosValue()
|
| 447 | return self._ToList(val)
|
| 448 |
|
| 449 | def PosDict(self):
|
| 450 | # type: () -> Dict[str, value_t]
|
| 451 | val = self.PosValue()
|
| 452 | return self._ToDict(val)
|
| 453 |
|
| 454 | def PosObj(self):
|
| 455 | # type: () -> Obj
|
| 456 | val = self.PosValue()
|
| 457 | return self._ToObj(val)
|
| 458 |
|
| 459 | def PosPlace(self):
|
| 460 | # type: () -> value.Place
|
| 461 | val = self.PosValue()
|
| 462 | return self._ToPlace(val)
|
| 463 |
|
| 464 | def PosEggex(self):
|
| 465 | # type: () -> value.Eggex
|
| 466 | val = self.PosValue()
|
| 467 | return self._ToEggex(val)
|
| 468 |
|
| 469 | def PosMatch(self):
|
| 470 | # type: () -> RegexMatch
|
| 471 | val = self.PosValue()
|
| 472 | return self._ToMatch(val)
|
| 473 |
|
| 474 | def PosFrame(self):
|
| 475 | # type: () -> Dict[str, Cell]
|
| 476 | val = self.PosValue()
|
| 477 | return self._ToFrame(val)
|
| 478 |
|
| 479 | def PosDebugFrame(self):
|
| 480 | # type: () -> debug_frame_t
|
| 481 | val = self.PosValue()
|
| 482 | return self._ToDebugFrame(val)
|
| 483 |
|
| 484 | def PosCommandFrag(self):
|
| 485 | # type: () -> command_t
|
| 486 | val = self.PosValue()
|
| 487 | return self._ToCommandFrag(val)
|
| 488 |
|
| 489 | def PosCommand(self):
|
| 490 | # type: () -> value.Command
|
| 491 | val = self.PosValue()
|
| 492 | return self._ToCommand(val)
|
| 493 |
|
| 494 | def PosExpr(self):
|
| 495 | # type: () -> value.Expr
|
| 496 | val = self.PosValue()
|
| 497 | return self._ToExpr(val)
|
| 498 |
|
| 499 | #
|
| 500 | # Block arg
|
| 501 | #
|
| 502 |
|
| 503 | def OptionalCommand(self):
|
| 504 | # type: () -> Optional[value.Command]
|
| 505 | if self.block_arg is None:
|
| 506 | return None
|
| 507 | return self._ToCommand(self.block_arg)
|
| 508 |
|
| 509 | def RequiredBlockAsFrag(self):
|
| 510 | # type: () -> command_t
|
| 511 | if self.block_arg is None:
|
| 512 | raise error.Usage('expected a block arg',
|
| 513 | self.LeastSpecificLocation())
|
| 514 | return self._ToCommandFrag(self.block_arg)
|
| 515 |
|
| 516 | def OptionalBlockAsFrag(self):
|
| 517 | # type: () -> Optional[command_t]
|
| 518 | if self.block_arg is None:
|
| 519 | return None
|
| 520 | return self._ToCommandFrag(self.block_arg)
|
| 521 |
|
| 522 | def RestPos(self):
|
| 523 | # type: () -> List[value_t]
|
| 524 | ret = self.pos_args
|
| 525 | self.pos_args = []
|
| 526 | return ret
|
| 527 |
|
| 528 | ### Typed named args
|
| 529 |
|
| 530 | def _BlameNamed(self, name):
|
| 531 | # type: (str) -> loc_t
|
| 532 | """Returns the location of the given named argument."""
|
| 533 | # TODO: be more specific
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| 534 | return self.LeastSpecificLocation()
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| 535 |
|
| 536 | def NamedStr(self, param_name, default_):
|
| 537 | # type: (str, str) -> str
|
| 538 | if param_name not in self.named_args:
|
| 539 | return default_
|
| 540 |
|
| 541 | val = self.named_args[param_name]
|
| 542 | UP_val = val
|
| 543 | if val.tag() == value_e.Str:
|
| 544 | mylib.dict_erase(self.named_args, param_name)
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| 545 | val = cast(value.Str, UP_val)
|
| 546 | return val.s
|
| 547 |
|
| 548 | raise error.TypeErr(val, 'Named arg %r should be a Str' % param_name,
|
| 549 | self._BlameNamed(param_name))
|
| 550 |
|
| 551 | def NamedBool(self, param_name, default_):
|
| 552 | # type: (str, bool) -> bool
|
| 553 | if param_name not in self.named_args:
|
| 554 | return default_
|
| 555 |
|
| 556 | val = self.named_args[param_name]
|
| 557 | UP_val = val
|
| 558 | if val.tag() == value_e.Bool:
|
| 559 | val = cast(value.Bool, UP_val)
|
| 560 | mylib.dict_erase(self.named_args, param_name)
|
| 561 | return val.b
|
| 562 |
|
| 563 | raise error.TypeErr(val, 'Named arg %r should be a Bool' % param_name,
|
| 564 | self._BlameNamed(param_name))
|
| 565 |
|
| 566 | def NamedInt(self, param_name, default_):
|
| 567 | # type: (str, int) -> mops.BigInt
|
| 568 | if param_name not in self.named_args:
|
| 569 | return mops.IntWiden(default_)
|
| 570 |
|
| 571 | val = self.named_args[param_name]
|
| 572 | UP_val = val
|
| 573 | if val.tag() == value_e.Int:
|
| 574 | val = cast(value.Int, UP_val)
|
| 575 | mylib.dict_erase(self.named_args, param_name)
|
| 576 | return val.i
|
| 577 |
|
| 578 | raise error.TypeErr(val, 'Named arg %r should be a Int' % param_name,
|
| 579 | self._BlameNamed(param_name))
|
| 580 |
|
| 581 | def NamedFloat(self, param_name, default_):
|
| 582 | # type: (str, float) -> float
|
| 583 | if param_name not in self.named_args:
|
| 584 | return default_
|
| 585 |
|
| 586 | val = self.named_args[param_name]
|
| 587 | UP_val = val
|
| 588 | if val.tag() == value_e.Float:
|
| 589 | val = cast(value.Float, UP_val)
|
| 590 | mylib.dict_erase(self.named_args, param_name)
|
| 591 | return val.f
|
| 592 |
|
| 593 | raise error.TypeErr(val, 'Named arg %r should be a Float' % param_name,
|
| 594 | self._BlameNamed(param_name))
|
| 595 |
|
| 596 | def NamedList(self, param_name, default_):
|
| 597 | # type: (str, List[value_t]) -> List[value_t]
|
| 598 | if param_name not in self.named_args:
|
| 599 | return default_
|
| 600 |
|
| 601 | val = self.named_args[param_name]
|
| 602 | UP_val = val
|
| 603 | if val.tag() == value_e.List:
|
| 604 | val = cast(value.List, UP_val)
|
| 605 | mylib.dict_erase(self.named_args, param_name)
|
| 606 | return val.items
|
| 607 |
|
| 608 | raise error.TypeErr(val, 'Named arg %r should be a List' % param_name,
|
| 609 | self._BlameNamed(param_name))
|
| 610 |
|
| 611 | def NamedDict(self, param_name, default_):
|
| 612 | # type: (str, Dict[str, value_t]) -> Dict[str, value_t]
|
| 613 | if param_name not in self.named_args:
|
| 614 | return default_
|
| 615 |
|
| 616 | val = self.named_args[param_name]
|
| 617 | UP_val = val
|
| 618 | if val.tag() == value_e.Dict:
|
| 619 | val = cast(value.Dict, UP_val)
|
| 620 | mylib.dict_erase(self.named_args, param_name)
|
| 621 | return val.d
|
| 622 |
|
| 623 | raise error.TypeErr(val, 'Named arg %r should be a Dict' % param_name,
|
| 624 | self._BlameNamed(param_name))
|
| 625 |
|
| 626 | def RestNamed(self):
|
| 627 | # type: () -> Dict[str, value_t]
|
| 628 | ret = self.named_args
|
| 629 | self.named_args = NewDict()
|
| 630 | return ret
|
| 631 |
|
| 632 | def Done(self):
|
| 633 | # type: () -> None
|
| 634 | """
|
| 635 | Check that no extra arguments were passed
|
| 636 |
|
| 637 | 4 checks: words, pos, named, block
|
| 638 |
|
| 639 | It's a little weird that we report all errors at the end, but no
|
| 640 | problem
|
| 641 | """
|
| 642 | # Note: Python throws TypeError on mismatch
|
| 643 | if len(self.pos_args):
|
| 644 | n = self.pos_consumed
|
| 645 | # Excluding implicit first arg should make errors less confusing
|
| 646 | if self.is_bound:
|
| 647 | n -= 1
|
| 648 |
|
| 649 | self.pos_consumed += 1 # point to the first uncomsumed arg
|
| 650 |
|
| 651 | raise error.TypeErrVerbose(
|
| 652 | 'Expected %d typed args, but got %d' %
|
| 653 | (n, n + len(self.pos_args)), self.BlamePos())
|
| 654 |
|
| 655 | if len(self.named_args):
|
| 656 | bad_args = ', '.join(self.named_args.keys())
|
| 657 |
|
| 658 | blame = self.arg_list.semi_tok # type: loc_t
|
| 659 | if blame is None:
|
| 660 | blame = self.LeastSpecificLocation()
|
| 661 |
|
| 662 | raise error.TypeErrVerbose(
|
| 663 | 'Got unexpected named args: %s' % bad_args, blame)
|