| // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
| |
| // This file is part of GCC. |
| |
| // GCC is free software; you can redistribute it and/or modify it under |
| // the terms of the GNU General Public License as published by the Free |
| // Software Foundation; either version 3, or (at your option) any later |
| // version. |
| |
| // GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| // for more details. |
| |
| // You should have received a copy of the GNU General Public License |
| // along with GCC; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| #ifndef RUST_UNIFY |
| #define RUST_UNIFY |
| |
| #include "rust-tyty-util.h" |
| #include "rust-hir-type-check.h" |
| |
| namespace Rust { |
| namespace Resolver { |
| |
| class UnifyRules |
| { |
| public: |
| static TyTy::BaseType *Resolve (TyTy::TyWithLocation lhs, |
| TyTy::TyWithLocation rhs, Location locus, |
| bool commit_flag, bool emit_error); |
| |
| protected: |
| TyTy::BaseType *expect_inference_variable (TyTy::InferType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_adt (TyTy::ADTType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_str (TyTy::StrType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_reference (TyTy::ReferenceType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_pointer (TyTy::PointerType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_param (TyTy::ParamType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_array (TyTy::ArrayType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_slice (TyTy::SliceType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_fndef (TyTy::FnType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_fnptr (TyTy::FnPtr *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_tuple (TyTy::TupleType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_bool (TyTy::BoolType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_char (TyTy::CharType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_int (TyTy::IntType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_uint (TyTy::UintType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_float (TyTy::FloatType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_isize (TyTy::ISizeType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_usize (TyTy::USizeType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_never (TyTy::NeverType *ltype, TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_placeholder (TyTy::PlaceholderType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_projection (TyTy::ProjectionType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_dyn (TyTy::DynamicObjectType *ltype, |
| TyTy::BaseType *rtype); |
| TyTy::BaseType *expect_closure (TyTy::ClosureType *ltype, |
| TyTy::BaseType *rtype); |
| |
| private: |
| UnifyRules (TyTy::TyWithLocation lhs, TyTy::TyWithLocation rhs, |
| Location locus, bool commit_flag, bool emit_error); |
| |
| void emit_type_mismatch () const; |
| void commit (TyTy::BaseType *resolved); |
| TyTy::BaseType *go (); |
| |
| TyTy::BaseType *get_base (); |
| TyTy::BaseType *get_other (); |
| |
| TyTy::TyWithLocation lhs; |
| TyTy::TyWithLocation rhs; |
| Location locus; |
| bool commit_flag; |
| bool emit_error; |
| |
| Analysis::Mappings &mappings; |
| TypeCheckContext &context; |
| }; |
| |
| } // namespace Resolver |
| } // namespace Rust |
| |
| #endif // RUST_UNIFY |