| 1 | #!/usr/bin/env python2
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| 2 | """func_hay.py."""
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| 3 | from __future__ import print_function
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| 4 |
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| 5 | from _devbuild.gen.syntax_asdl import source, loc, command_t
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| 6 | from _devbuild.gen.value_asdl import value
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| 7 | from builtin import hay_ysh
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| 8 | from core import alloc
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| 9 | from core import error
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| 10 | from core import main_loop
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| 11 | from core import state
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| 12 | from core import ui
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| 13 | from core import vm
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| 14 | from frontend import reader
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| 15 | from frontend import typed_args
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| 16 |
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| 17 | import posix_ as posix
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| 18 |
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| 19 | from typing import TYPE_CHECKING, Dict
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| 20 |
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| 21 | if TYPE_CHECKING:
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| 22 | from _devbuild.gen.value_asdl import value_t
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| 23 | from core import process
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| 24 | from frontend import parse_lib
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| 25 | from osh import cmd_eval
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| 26 |
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| 27 |
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| 28 | class ParseHay(vm._Callable):
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| 29 | """parseHay()"""
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| 30 |
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| 31 | def __init__(self, fd_state, parse_ctx, errfmt):
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| 32 | # type: (process.FdState, parse_lib.ParseContext, ui.ErrorFormatter) -> None
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| 33 | self.fd_state = fd_state
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| 34 | self.parse_ctx = parse_ctx
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| 35 | self.errfmt = errfmt
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| 36 |
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| 37 | def _Call(self, path):
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| 38 | # type: (str) -> value_t
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| 39 |
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| 40 | call_loc = loc.Missing # TODO: location info
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| 41 |
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| 42 | # TODO: need to close the file!
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| 43 | try:
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| 44 | f = self.fd_state.Open(path)
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| 45 | except (IOError, OSError) as e:
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| 46 | msg = posix.strerror(e.errno)
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| 47 | raise error.Expr("Couldn't open %r: %s" % (path, msg), call_loc)
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| 48 |
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| 49 | arena = self.parse_ctx.arena
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| 50 | line_reader = reader.FileLineReader(f, arena)
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| 51 |
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| 52 | parse_opts = state.MakeOilOpts()
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| 53 | # Note: runtime needs these options and totally different memory
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| 54 |
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| 55 | # TODO: CommandParser needs parse_opts
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| 56 | c_parser = self.parse_ctx.MakeConfigParser(line_reader)
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| 57 |
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| 58 | # TODO: Should there be a separate config file source?
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| 59 | src = source.SourcedFile(path, call_loc)
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| 60 | try:
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| 61 | with alloc.ctx_SourceCode(arena, src):
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| 62 | node = main_loop.ParseWholeFile(c_parser)
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| 63 | except error.Parse as e:
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| 64 | self.errfmt.PrettyPrintError(e)
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| 65 | return None
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| 66 |
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| 67 | return value.Command(node)
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| 68 |
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| 69 | def Call(self, rd):
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| 70 | # type: (typed_args.Reader) -> value_t
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| 71 |
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| 72 | string = rd.PosStr()
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| 73 | rd.Done()
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| 74 | return self._Call(string)
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| 75 |
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| 76 |
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| 77 | class EvalHay(vm._Callable):
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| 78 | """evalHay()"""
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| 79 |
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| 80 | def __init__(
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| 81 | self,
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| 82 | hay_state, # type: hay_ysh.HayState
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| 83 | mutable_opts, # type: state.MutableOpts
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| 84 | mem, # type: state.Mem
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| 85 | cmd_ev, #type: cmd_eval.CommandEvaluator
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| 86 | ):
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| 87 | # type: (...) -> None
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| 88 | self.hay_state = hay_state
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| 89 | self.mutable_opts = mutable_opts
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| 90 | self.mem = mem
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| 91 | self.cmd_ev = cmd_ev
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| 92 |
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| 93 | def _Call(self, cmd):
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| 94 | # type: (command_t) -> Dict[str, value_t]
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| 95 |
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| 96 | with hay_ysh.ctx_HayEval(self.hay_state, self.mutable_opts, self.mem):
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| 97 | unused = self.cmd_ev.EvalCommand(cmd)
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| 98 |
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| 99 | return self.hay_state.Result()
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| 100 |
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| 101 | # Note: we should discourage the unvalidated top namespace for files? It
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| 102 | # needs more validation.
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| 103 |
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| 104 | def Call(self, rd):
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| 105 | # type: (typed_args.Reader) -> value_t
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| 106 |
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| 107 | cmd = rd.PosCommand()
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| 108 | rd.Done()
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| 109 | return value.Dict(self._Call(cmd))
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| 110 |
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| 111 |
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| 112 | class BlockAsStr(vm._Callable):
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| 113 | """block_as_str
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| 114 |
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| 115 | TODO:
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| 116 | - I think this should be cmd->exportAsJson() or something
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| 117 | - maybe not toJson(), because that's a bit cavalier?
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| 118 | """
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| 119 |
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| 120 | def __init__(self, arena):
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| 121 | # type: (alloc.Arena) -> None
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| 122 | self.arena = arena
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| 123 |
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| 124 | def _Call(self, block):
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| 125 | # type: (value_t) -> value_t
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| 126 | return block
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| 127 |
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| 128 | def Call(self, rd):
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| 129 | # type: (typed_args.Reader) -> value_t
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| 130 | val = rd.PosValue()
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| 131 | rd.Done()
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| 132 | return self._Call(val)
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| 133 |
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| 134 |
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| 135 | class HayFunc(vm._Callable):
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| 136 | """_hay() register"""
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| 137 |
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| 138 | def __init__(self, hay_state):
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| 139 | # type: (hay_ysh.HayState) -> None
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| 140 | self.hay_state = hay_state
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| 141 |
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| 142 | def _Call(self):
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| 143 | # type: () -> Dict[str, value_t]
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| 144 | return self.hay_state.HayRegister()
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| 145 |
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| 146 | def Call(self, rd):
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| 147 | # type: (typed_args.Reader) -> value_t
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| 148 |
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| 149 | # TODO: check args
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| 150 | return value.Dict(self._Call())
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