gcc/rust/checks/errors/rust-feature-gate.h

   1 // Copyright (C) 2020-2024 Free Software Foundation, Inc.
   2
   3 // This file is part of GCC.
   4
   5 // GCC is free software; you can redistribute it and/or modify it under
   6 // the terms of the GNU General Public License as published by the Free
   7 // Software Foundation; either version 3, or (at your option) any later
   8 // version.
   9
  10 // GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 // for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with GCC; see the file COPYING3.  If not see
  17 // <http://www.gnu.org/licenses/>.
  18
  19 #ifndef RUST_FEATURE_GATE_H
  20 #define RUST_FEATURE_GATE_H
  21
  22 #include "rust-ast-visitor.h"
  23 #include "rust-ast-full.h"
  24 #include "rust-feature.h"
  25
  26 namespace Rust {
  27
  28 struct Feature;
  29
  30 class FeatureGate : public AST::ASTVisitor
  31 {
  32 public:
  33   FeatureGate () {}
  34
  35   void check (AST::Crate &crate);
  36
  37   void visit (AST::Token &tok) override {}
  38   void visit (AST::DelimTokenTree &delim_tok_tree) override {}
  39   void visit (AST::AttrInputMetaItemContainer &input) override {}
  40   void visit (AST::IdentifierExpr &ident_expr) override {}
  41   void visit (AST::Lifetime &lifetime) override {}
  42   void visit (AST::LifetimeParam &lifetime_param) override {}
  43   void visit (AST::ConstGenericParam &const_param) override {}
  44   void visit (AST::PathInExpression &path) override {}
  45   void visit (AST::TypePathSegment &segment) override {}
  46   void visit (AST::TypePathSegmentGeneric &segment) override {}
  47   void visit (AST::TypePathSegmentFunction &segment) override {}
  48   void visit (AST::TypePath &path) override {}
  49   void visit (AST::QualifiedPathInExpression &path) override {}
  50   void visit (AST::QualifiedPathInType &path) override {}
  51   void visit (AST::LiteralExpr &expr) override {}
  52   void visit (AST::AttrInputLiteral &attr_input) override {}
  53   void visit (AST::MetaItemLitExpr &meta_item) override {}
  54   void visit (AST::MetaItemPathLit &meta_item) override {}
  55   void visit (AST::BorrowExpr &expr) override {}
  56   void visit (AST::DereferenceExpr &expr) override {}
  57   void visit (AST::ErrorPropagationExpr &expr) override {}
  58   void visit (AST::NegationExpr &expr) override {}
  59   void visit (AST::ArithmeticOrLogicalExpr &expr) override {}
  60   void visit (AST::ComparisonExpr &expr) override {}
  61   void visit (AST::LazyBooleanExpr &expr) override {}
  62   void visit (AST::TypeCastExpr &expr) override {}
  63   void visit (AST::AssignmentExpr &expr) override {}
  64   void visit (AST::CompoundAssignmentExpr &expr) override {}
  65   void visit (AST::GroupedExpr &expr) override {}
  66   void visit (AST::ArrayElemsValues &elems) override {}
  67   void visit (AST::ArrayElemsCopied &elems) override {}
  68   void visit (AST::ArrayExpr &expr) override {}
  69   void visit (AST::ArrayIndexExpr &expr) override {}
  70   void visit (AST::TupleExpr &expr) override {}
  71   void visit (AST::TupleIndexExpr &expr) override {}
  72   void visit (AST::StructExprStruct &expr) override {}
  73   void visit (AST::StructExprFieldIdentifier &field) override {}
  74   void visit (AST::StructExprFieldIdentifierValue &field) override {}
  75   void visit (AST::StructExprFieldIndexValue &field) override {}
  76   void visit (AST::StructExprStructFields &expr) override {}
  77   void visit (AST::StructExprStructBase &expr) override {}
  78   void visit (AST::CallExpr &expr) override {}
  79   void visit (AST::MethodCallExpr &expr) override {}
  80   void visit (AST::FieldAccessExpr &expr) override {}
  81   void visit (AST::ClosureExprInner &expr) override {}
  82   void visit (AST::BlockExpr &expr) override {}
  83   void visit (AST::ClosureExprInnerTyped &expr) override {}
  84   void visit (AST::ContinueExpr &expr) override {}
  85   void visit (AST::BreakExpr &expr) override {}
  86   void visit (AST::RangeFromToExpr &expr) override {}
  87   void visit (AST::RangeFromExpr &expr) override {}
  88   void visit (AST::RangeToExpr &expr) override {}
  89   void visit (AST::RangeFullExpr &expr) override {}
  90   void visit (AST::RangeFromToInclExpr &expr) override {}
  91   void visit (AST::RangeToInclExpr &expr) override {}
  92   void visit (AST::ReturnExpr &expr) override {}
  93   void visit (AST::UnsafeBlockExpr &expr) override {}
  94   void visit (AST::LoopExpr &expr) override {}
  95   void visit (AST::WhileLoopExpr &expr) override {}
  96   void visit (AST::WhileLetLoopExpr &expr) override {}
  97   void visit (AST::ForLoopExpr &expr) override {}
  98   void visit (AST::IfExpr &expr) override {}
  99   void visit (AST::IfExprConseqElse &expr) override {}
 100   void visit (AST::IfExprConseqIf &expr) override {}
 101   void visit (AST::IfExprConseqIfLet &expr) override {}
 102   void visit (AST::IfLetExpr &expr) override {}
 103   void visit (AST::IfLetExprConseqElse &expr) override {}
 104   void visit (AST::IfLetExprConseqIf &expr) override {}
 105   void visit (AST::IfLetExprConseqIfLet &expr) override {}
 106   void visit (AST::MatchExpr &expr) override {}
 107   void visit (AST::AwaitExpr &expr) override {}
 108   void visit (AST::AsyncBlockExpr &expr) override {}
 109   void visit (AST::TypeParam &param) override {}
 110   void visit (AST::LifetimeWhereClauseItem &item) override {}
 111   void visit (AST::TypeBoundWhereClauseItem &item) override {}
 112   void visit (AST::Method &method) override {}
 113   void visit (AST::Module &module) override {}
 114   void visit (AST::ExternCrate &crate) override {}
 115   void visit (AST::UseTreeGlob &use_tree) override {}
 116   void visit (AST::UseTreeList &use_tree) override {}
 117   void visit (AST::UseTreeRebind &use_tree) override {}
 118   void visit (AST::UseDeclaration &use_decl) override {}
 119   void visit (AST::Function &function) override {}
 120   void visit (AST::TypeAlias &type_alias) override {}
 121   void visit (AST::StructStruct &struct_item) override {}
 122   void visit (AST::TupleStruct &tuple_struct) override {}
 123   void visit (AST::EnumItem &item) override {}
 124   void visit (AST::EnumItemTuple &item) override {}
 125   void visit (AST::EnumItemStruct &item) override {}
 126   void visit (AST::EnumItemDiscriminant &item) override {}
 127   void visit (AST::Enum &enum_item) override {}
 128   void visit (AST::Union &union_item) override {}
 129   void visit (AST::ConstantItem &const_item) override {}
 130   void visit (AST::StaticItem &static_item) override {}
 131   void visit (AST::TraitItemFunc &item) override {}
 132   void visit (AST::TraitItemMethod &item) override {}
 133   void visit (AST::TraitItemConst &item) override {}
 134   void visit (AST::TraitItemType &item) override {}
 135   void visit (AST::Trait &trait) override {}
 136   void visit (AST::InherentImpl &impl) override {}
 137   void visit (AST::TraitImpl &impl) override {}
 138   void visit (AST::ExternalStaticItem &item) override {}
 139   void visit (AST::ExternalFunctionItem &item) override {}
 140   void visit (AST::ExternBlock &block) override;
 141   void visit (AST::MacroMatchFragment &match) override {}
 142   void visit (AST::MacroMatchRepetition &match) override {}
 143   void visit (AST::MacroMatcher &matcher) override {}
 144   void visit (AST::MacroRulesDefinition &rules_def) override {}
 145   void visit (AST::MacroInvocation &macro_invoc) override {}
 146   void visit (AST::MetaItemPath &meta_item) override {}
 147   void visit (AST::MetaItemSeq &meta_item) override {}
 148   void visit (AST::MetaWord &meta_item) override {}
 149   void visit (AST::MetaNameValueStr &meta_item) override {}
 150   void visit (AST::MetaListPaths &meta_item) override {}
 151   void visit (AST::MetaListNameValueStr &meta_item) override {}
 152   void visit (AST::LiteralPattern &pattern) override {}
 153   void visit (AST::IdentifierPattern &pattern) override {}
 154   void visit (AST::WildcardPattern &pattern) override {}
 155   void visit (AST::RangePatternBoundLiteral &bound) override {}
 156   void visit (AST::RangePatternBoundPath &bound) override {}
 157   void visit (AST::RangePatternBoundQualPath &bound) override {}
 158   void visit (AST::RangePattern &pattern) override {}
 159   void visit (AST::ReferencePattern &pattern) override {}
 160   void visit (AST::StructPatternFieldTuplePat &field) override {}
 161   void visit (AST::StructPatternFieldIdentPat &field) override {}
 162   void visit (AST::StructPatternFieldIdent &field) override {}
 163   void visit (AST::StructPattern &pattern) override {}
 164   void visit (AST::TupleStructItemsNoRange &tuple_items) override {}
 165   void visit (AST::TupleStructItemsRange &tuple_items) override {}
 166   void visit (AST::TupleStructPattern &pattern) override {}
 167   void visit (AST::TuplePatternItemsMultiple &tuple_items) override {}
 168   void visit (AST::TuplePatternItemsRanged &tuple_items) override {}
 169   void visit (AST::TuplePattern &pattern) override {}
 170   void visit (AST::GroupedPattern &pattern) override {}
 171   void visit (AST::SlicePattern &pattern) override {}
 172   void visit (AST::AltPattern &pattern) override {}
 173   void visit (AST::EmptyStmt &stmt) override {}
 174   void visit (AST::LetStmt &stmt) override {}
 175   void visit (AST::ExprStmtWithoutBlock &stmt) override {}
 176   void visit (AST::ExprStmtWithBlock &stmt) override {}
 177   void visit (AST::TraitBound &bound) override {}
 178   void visit (AST::ImplTraitType &type) override {}
 179   void visit (AST::TraitObjectType &type) override {}
 180   void visit (AST::ParenthesisedType &type) override {}
 181   void visit (AST::ImplTraitTypeOneBound &type) override {}
 182   void visit (AST::TraitObjectTypeOneBound &type) override {}
 183   void visit (AST::TupleType &type) override {}
 184   void visit (AST::NeverType &type) override {}
 185   void visit (AST::RawPointerType &type) override {}
 186   void visit (AST::ReferenceType &type) override {}
 187   void visit (AST::ArrayType &type) override {}
 188   void visit (AST::SliceType &type) override {}
 189   void visit (AST::InferredType &type) override {}
 190   void visit (AST::BareFunctionType &type) override {}
 191
 192 private:
 193   void gate (Feature::Name name, Location loc, const std::string &error_msg);
 194   std::set<Feature::Name> valid_features;
 195 };
 196 } // namespace Rust
 197 #endif