Line data    Source code

       1              : // Copyright (C) 2025-2026 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              : #include "rust-hir-visitor.h"
      20              : #include "rust-name-resolver.h"
      21              : #include "rust-stacked-contexts.h"
      22              : #include "rust-hir-type-check.h"
      23              : 
      24              : namespace Rust {
      25              : namespace HIR {
      26         4028 : class ReadonlyChecker : public DefaultHIRVisitor
      27              : {
      28              : public:
      29              :   ReadonlyChecker ();
      30              : 
      31              :   void go (HIR::Crate &crate);
      32              : 
      33              : private:
      34              :   enum class lvalue_use
      35              :   {
      36              :     assign,
      37              :     increment,
      38              :     decrement,
      39              :   };
      40              : 
      41              :   Resolver::Resolver &resolver;
      42              :   Analysis::Mappings &mappings;
      43              :   Resolver::TypeCheckContext &context;
      44              :   StackedContexts<HirId> mutable_context;
      45              : 
      46              :   using DefaultHIRVisitor::visit;
      47              : 
      48              :   virtual void visit (AssignmentExpr &expr) override;
      49              :   virtual void visit (PathInExpression &expr) override;
      50              :   virtual void visit (FieldAccessExpr &expr) override;
      51              :   virtual void visit (ArrayIndexExpr &expr) override;
      52              :   virtual void visit (TupleExpr &expr) override;
      53              :   virtual void visit (TupleIndexExpr &expr) override;
      54              :   virtual void visit (LetStmt &stmt) override;
      55              :   virtual void visit (LiteralExpr &expr) override;
      56              :   virtual void visit (DereferenceExpr &expr) override;
      57              : 
      58              :   void collect_assignment (Pattern &pattern, bool has_init_expr);
      59              :   void collect_assignment_identifier (IdentifierPattern &pattern,
      60              :                                       bool has_init_expr);
      61              :   void collect_assignment_tuple (TuplePattern &pattern, bool has_init_expr);
      62              : 
      63              :   void check_variable (IdentifierPattern *pattern, location_t assigned_loc);
      64              : 
      65              :   bool is_mutable_type (TyTy::BaseType *type);
      66              : };
      67              : 
      68              : } // namespace HIR
      69              : } // namespace Rust