| 1 | """
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| 2 | syntax_abbrev.py - Abbreviations for pretty-printing syntax.asdl.
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| 3 | """
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| 4 |
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| 5 | from _devbuild.gen.id_kind_asdl import Id, Id_str
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| 6 | from _devbuild.gen.hnode_asdl import hnode, hnode_t, color_e
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| 7 | from asdl import runtime
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| 8 |
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| 9 | from typing import List, Optional, TYPE_CHECKING
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| 10 | if TYPE_CHECKING:
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| 11 | from _devbuild.gen.syntax_asdl import (Token, CompoundWord, DoubleQuoted,
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| 12 | SingleQuoted, BracedVarSub,
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| 13 | SimpleVarSub, command, expr)
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| 14 |
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| 15 | __all__ = [
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| 16 | '_Token', '_CompoundWord', '_DoubleQuoted', '_SingleQuoted',
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| 17 | '_BracedVarSub', '_SimpleVarSub', '_command__Simple', '_expr__Var',
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| 18 | '_expr__Const'
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| 19 | ]
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| 20 |
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| 21 |
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| 22 | def _AbbreviateToken(tok, out):
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| 23 | # type: (Token, List[hnode_t]) -> None
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| 24 | tok_str = tok.line.content[tok.col:tok.col + tok.length]
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| 25 | n1 = runtime.NewLeaf(Id_str(tok.id, dot=False), color_e.OtherConst)
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| 26 | out.append(n1)
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| 27 | n2 = runtime.NewLeaf(tok_str, color_e.StringConst)
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| 28 | out.append(n2)
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| 29 |
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| 30 |
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| 31 | def _Token(obj):
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| 32 | # type: (Token) -> hnode_t
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| 33 | p_node = runtime.NewRecord('') # don't show node type
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| 34 |
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| 35 | p_node.left = '<'
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| 36 | p_node.right = '>'
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| 37 | p_node.unnamed_fields = []
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| 38 | _AbbreviateToken(obj, p_node.unnamed_fields)
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| 39 | return p_node
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| 40 |
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| 41 |
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| 42 | def _CompoundWord(obj):
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| 43 | # type: (CompoundWord) -> hnode_t
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| 44 | p_node = runtime.NewRecord('w')
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| 45 | p_node.left = '('
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| 46 | p_node.right = ')'
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| 47 |
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| 48 | p_node.unnamed_fields = []
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| 49 | for part in obj.parts:
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| 50 | p_node.unnamed_fields.append(part.PrettyTree(True))
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| 51 | return p_node
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| 52 |
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| 53 |
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| 54 | def _DoubleQuoted(obj):
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| 55 | # type: (DoubleQuoted) -> hnode_t
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| 56 | if obj.left.id != Id.Left_DoubleQuote:
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| 57 | return None # Fall back on obj._PrettyTree(True)
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| 58 |
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| 59 | p_node = runtime.NewRecord('DQ')
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| 60 |
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| 61 | p_node.unnamed_fields = []
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| 62 | for part in obj.parts:
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| 63 | p_node.unnamed_fields.append(part.PrettyTree(True))
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| 64 | return p_node
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| 65 |
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| 66 |
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| 67 | def _SingleQuoted(obj):
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| 68 | # type: (SingleQuoted) -> hnode_t
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| 69 |
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| 70 | # Only abbreviate 'foo', not $'foo\n' or r'foo'
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| 71 | if obj.left.id != Id.Left_SingleQuote:
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| 72 | return None # Fall back on obj._PrettyTree(True)
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| 73 |
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| 74 | p_node = runtime.NewRecord('SQ')
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| 75 |
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| 76 | p_node.unnamed_fields = []
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| 77 | n2 = runtime.NewLeaf(obj.sval, color_e.StringConst)
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| 78 | p_node.unnamed_fields.append(n2)
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| 79 | return p_node
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| 80 |
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| 81 |
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| 82 | def _SimpleVarSub(obj):
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| 83 | # type: (SimpleVarSub) -> hnode_t
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| 84 | p_node = runtime.NewRecord('$')
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| 85 |
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| 86 | p_node.unnamed_fields = []
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| 87 | if obj.tok.id in (Id.VSub_DollarName, Id.VSub_Number): # $myvar or $1
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| 88 | # We want to show the variable name
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| 89 | # _AbbreviateToken(obj.tok, p_node.unnamed_fields)
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| 90 | tok = obj.tok
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| 91 | # Omit $
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| 92 | var_name = tok.line.content[tok.col + 1:tok.col + tok.length]
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| 93 | n1 = runtime.NewLeaf(var_name, color_e.StringConst)
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| 94 | p_node.unnamed_fields.append(n1)
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| 95 | else: # $?
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| 96 | n1 = runtime.NewLeaf(Id_str(obj.tok.id, dot=False), color_e.OtherConst)
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| 97 | p_node.unnamed_fields.append(n1)
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| 98 |
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| 99 | return p_node
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| 100 |
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| 101 |
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| 102 | def _BracedVarSub(obj):
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| 103 | # type: (BracedVarSub) -> Optional[hnode_t]
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| 104 | p_node = runtime.NewRecord('${')
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| 105 | if (obj.prefix_op is not None or obj.bracket_op is not None or
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| 106 | obj.suffix_op is not None):
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| 107 | return None # we have other fields to display; don't abbreviate
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| 108 |
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| 109 | p_node.unnamed_fields = []
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| 110 | _AbbreviateToken(obj.token, p_node.unnamed_fields)
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| 111 | return p_node
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| 112 |
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| 113 |
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| 114 | def _command__Simple(obj):
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| 115 | # type: (command.Simple) -> Optional[hnode_t]
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| 116 | p_node = runtime.NewRecord('C')
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| 117 | if (len(obj.more_env) or obj.typed_args is not None or
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| 118 | obj.block is not None or obj.is_last_cmd == True):
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| 119 | return None # we have other fields to display; don't abbreviate
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| 120 |
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| 121 | p_node.unnamed_fields = []
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| 122 | for w in obj.words:
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| 123 | p_node.unnamed_fields.append(w.PrettyTree(True))
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| 124 | return p_node
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| 125 |
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| 126 |
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| 127 | def _expr__Var(obj):
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| 128 | # type: (expr.Var) -> hnode_t
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| 129 | p_node = runtime.NewRecord('Var')
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| 130 |
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| 131 | assert obj.left.id == Id.Expr_Name, obj.name
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| 132 | n1 = runtime.NewLeaf(obj.name, color_e.StringConst)
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| 133 | p_node.unnamed_fields = [n1]
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| 134 | return p_node
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| 135 |
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| 136 |
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| 137 | def _expr__Const(obj):
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| 138 | # type: (expr.Const) -> hnode_t
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| 139 | p_node = runtime.NewRecord('Const')
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| 140 |
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| 141 | tok = obj.c
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| 142 | n1 = runtime.NewLeaf(Id_str(tok.id, dot=False), color_e.OtherConst)
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| 143 | n2 = runtime.NewLeaf(tok.tval, color_e.StringConst)
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| 144 |
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| 145 | p_node.unnamed_fields = [n1, n2]
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| 146 | return p_node
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