/usr/include/llvm-3.8/llvm/Option/OptParser.td is in llvm-3.8-dev 1:3.8-2ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | //===--- OptParser.td - Common Option Parsing Interfaces ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the common interfaces used by the option parsing TableGen
// backend.
//
//===----------------------------------------------------------------------===//
// Define the kinds of options.
class OptionKind<string name, int precedence = 0, bit sentinel = 0> {
string Name = name;
// The kind precedence, kinds with lower precedence are matched first.
int Precedence = precedence;
// Indicate a sentinel option.
bit Sentinel = sentinel;
}
// An option group.
def KIND_GROUP : OptionKind<"Group">;
// The input option kind.
def KIND_INPUT : OptionKind<"Input", 1, 1>;
// The unknown option kind.
def KIND_UNKNOWN : OptionKind<"Unknown", 2, 1>;
// A flag with no values.
def KIND_FLAG : OptionKind<"Flag">;
// An option which prefixes its (single) value.
def KIND_JOINED : OptionKind<"Joined", 1>;
// An option which is followed by its value.
def KIND_SEPARATE : OptionKind<"Separate">;
// An option followed by its values, which are separated by commas.
def KIND_COMMAJOINED : OptionKind<"CommaJoined">;
// An option which is which takes multiple (separate) arguments.
def KIND_MULTIARG : OptionKind<"MultiArg">;
// An option which is either joined to its (non-empty) value, or followed by its
// value.
def KIND_JOINED_OR_SEPARATE : OptionKind<"JoinedOrSeparate">;
// An option which is both joined to its (first) value, and followed by its
// (second) value.
def KIND_JOINED_AND_SEPARATE : OptionKind<"JoinedAndSeparate">;
// An option which consumes all remaining arguments if there are any.
def KIND_REMAINING_ARGS : OptionKind<"RemainingArgs">;
// Define the option flags.
class OptionFlag {}
// HelpHidden - The option should not be displayed in --help, even if it has
// help text. Clients *can* use this in conjunction with the OptTable::PrintHelp
// arguments to implement hidden help groups.
def HelpHidden : OptionFlag;
// RenderAsInput - The option should not render the name when rendered as an
// input (i.e., the option is rendered as values).
def RenderAsInput : OptionFlag;
// RenderJoined - The option should be rendered joined, even if separate (only
// sensible on single value separate options).
def RenderJoined : OptionFlag;
// RenderSeparate - The option should be rendered separately, even if joined
// (only sensible on joined options).
def RenderSeparate : OptionFlag;
// Define the option group class.
class OptionGroup<string name> {
string EnumName = ?; // Uses the def name if undefined.
string Name = name;
string HelpText = ?;
OptionGroup Group = ?;
list<OptionFlag> Flags = [];
}
// Define the option class.
class Option<list<string> prefixes, string name, OptionKind kind> {
string EnumName = ?; // Uses the def name if undefined.
list<string> Prefixes = prefixes;
string Name = name;
OptionKind Kind = kind;
// Used by MultiArg option kind.
int NumArgs = 0;
string HelpText = ?;
string MetaVarName = ?;
list<OptionFlag> Flags = [];
OptionGroup Group = ?;
Option Alias = ?;
list<string> AliasArgs = [];
}
// Helpers for defining options.
class Flag<list<string> prefixes, string name>
: Option<prefixes, name, KIND_FLAG>;
class Joined<list<string> prefixes, string name>
: Option<prefixes, name, KIND_JOINED>;
class Separate<list<string> prefixes, string name>
: Option<prefixes, name, KIND_SEPARATE>;
class CommaJoined<list<string> prefixes, string name>
: Option<prefixes, name, KIND_COMMAJOINED>;
class MultiArg<list<string> prefixes, string name, int numargs>
: Option<prefixes, name, KIND_MULTIARG> {
int NumArgs = numargs;
}
class JoinedOrSeparate<list<string> prefixes, string name>
: Option<prefixes, name, KIND_JOINED_OR_SEPARATE>;
class JoinedAndSeparate<list<string> prefixes, string name>
: Option<prefixes, name, KIND_JOINED_AND_SEPARATE>;
// Mix-ins for adding optional attributes.
class Alias<Option alias> { Option Alias = alias; }
class AliasArgs<list<string> aliasargs> { list<string> AliasArgs = aliasargs; }
class EnumName<string name> { string EnumName = name; }
class Flags<list<OptionFlag> flags> { list<OptionFlag> Flags = flags; }
class Group<OptionGroup group> { OptionGroup Group = group; }
class HelpText<string text> { string HelpText = text; }
class MetaVarName<string name> { string MetaVarName = name; }
// Predefined options.
// FIXME: Have generator validate that these appear in correct position (and
// aren't duplicated).
def INPUT : Option<[], "<input>", KIND_INPUT>;
def UNKNOWN : Option<[], "<unknown>", KIND_UNKNOWN>;
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