| // Copyright 2021 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_TINT_RESOLVER_RESOLVER_TEST_HELPER_H_ |
| #define SRC_TINT_RESOLVER_RESOLVER_TEST_HELPER_H_ |
| |
| #include <functional> |
| #include <memory> |
| #include <string> |
| #include <tuple> |
| #include <utility> |
| #include <variant> |
| |
| #include "gtest/gtest.h" |
| #include "src/tint/program_builder.h" |
| #include "src/tint/resolver/resolver.h" |
| #include "src/tint/sem/abstract_float.h" |
| #include "src/tint/sem/abstract_int.h" |
| #include "src/tint/sem/expression.h" |
| #include "src/tint/sem/statement.h" |
| #include "src/tint/sem/variable.h" |
| #include "src/tint/utils/vector.h" |
| |
| namespace tint::resolver { |
| |
| /// Helper class for testing |
| class TestHelper : public ProgramBuilder { |
| public: |
| /// Constructor |
| TestHelper(); |
| |
| /// Destructor |
| ~TestHelper() override; |
| |
| /// @return a pointer to the Resolver |
| Resolver* r() const { return resolver_.get(); } |
| |
| /// @return a pointer to the validator |
| const Validator* v() const { return resolver_->GetValidatorForTesting(); } |
| |
| /// Returns the statement that holds the given expression. |
| /// @param expr the ast::Expression |
| /// @return the ast::Statement of the ast::Expression, or nullptr if the |
| /// expression is not owned by a statement. |
| const ast::Statement* StmtOf(const ast::Expression* expr) { |
| auto* sem_stmt = Sem().Get(expr)->Stmt(); |
| return sem_stmt ? sem_stmt->Declaration() : nullptr; |
| } |
| |
| /// Returns the BlockStatement that holds the given statement. |
| /// @param stmt the ast::Statement |
| /// @return the ast::BlockStatement that holds the ast::Statement, or nullptr |
| /// if the statement is not owned by a BlockStatement. |
| const ast::BlockStatement* BlockOf(const ast::Statement* stmt) { |
| auto* sem_stmt = Sem().Get(stmt); |
| return sem_stmt ? sem_stmt->Block()->Declaration() : nullptr; |
| } |
| |
| /// Returns the BlockStatement that holds the given expression. |
| /// @param expr the ast::Expression |
| /// @return the ast::Statement of the ast::Expression, or nullptr if the |
| /// expression is not indirectly owned by a BlockStatement. |
| const ast::BlockStatement* BlockOf(const ast::Expression* expr) { |
| auto* sem_stmt = Sem().Get(expr)->Stmt(); |
| return sem_stmt ? sem_stmt->Block()->Declaration() : nullptr; |
| } |
| |
| /// Returns the semantic variable for the given identifier expression. |
| /// @param expr the identifier expression |
| /// @return the resolved sem::Variable of the identifier, or nullptr if |
| /// the expression did not resolve to a variable. |
| const sem::Variable* VarOf(const ast::Expression* expr) { |
| auto* sem_ident = Sem().Get(expr); |
| auto* var_user = sem_ident ? sem_ident->As<sem::VariableUser>() : nullptr; |
| return var_user ? var_user->Variable() : nullptr; |
| } |
| |
| /// Checks that all the users of the given variable are as expected |
| /// @param var the variable to check |
| /// @param expected_users the expected users of the variable |
| /// @return true if all users are as expected |
| bool CheckVarUsers(const ast::Variable* var, |
| utils::VectorRef<const ast::Expression*> expected_users) { |
| auto& var_users = Sem().Get(var)->Users(); |
| if (var_users.size() != expected_users.Length()) { |
| return false; |
| } |
| for (size_t i = 0; i < var_users.size(); i++) { |
| if (var_users[i]->Declaration() != expected_users[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /// @param type a type |
| /// @returns the name for `type` that closely resembles how it would be |
| /// declared in WGSL. |
| std::string FriendlyName(const ast::Type* type) { return type->FriendlyName(Symbols()); } |
| |
| /// @param type a type |
| /// @returns the name for `type` that closely resembles how it would be |
| /// declared in WGSL. |
| std::string FriendlyName(const sem::Type* type) { return type->FriendlyName(Symbols()); } |
| |
| private: |
| std::unique_ptr<Resolver> resolver_; |
| }; |
| |
| class ResolverTest : public TestHelper, public testing::Test {}; |
| |
| template <typename T> |
| class ResolverTestWithParam : public TestHelper, public testing::TestWithParam<T> {}; |
| |
| namespace builder { |
| |
| template <uint32_t N, typename T> |
| struct vec {}; |
| |
| template <typename T> |
| using vec2 = vec<2, T>; |
| |
| template <typename T> |
| using vec3 = vec<3, T>; |
| |
| template <typename T> |
| using vec4 = vec<4, T>; |
| |
| template <uint32_t N, uint32_t M, typename T> |
| struct mat {}; |
| |
| template <typename T> |
| using mat2x2 = mat<2, 2, T>; |
| |
| template <typename T> |
| using mat2x3 = mat<2, 3, T>; |
| |
| template <typename T> |
| using mat3x2 = mat<3, 2, T>; |
| |
| template <typename T> |
| using mat3x3 = mat<3, 3, T>; |
| |
| template <typename T> |
| using mat4x4 = mat<4, 4, T>; |
| |
| template <uint32_t N, typename T> |
| struct array {}; |
| |
| template <typename TO, int ID = 0> |
| struct alias {}; |
| |
| template <typename TO> |
| using alias1 = alias<TO, 1>; |
| |
| template <typename TO> |
| using alias2 = alias<TO, 2>; |
| |
| template <typename TO> |
| using alias3 = alias<TO, 3>; |
| |
| template <typename TO> |
| struct ptr {}; |
| |
| /// Type used to accept scalars as arguments. Can be either a single value that gets splatted for |
| /// composite types, or all values requried by the composite type. |
| struct ScalarArgs { |
| /// Constructor |
| /// @param single_value single value to initialize with |
| template <typename T> |
| ScalarArgs(T single_value) // NOLINT: implicit on purpose |
| : values(utils::Vector<Storage, 1>{single_value}) {} |
| |
| /// Constructor |
| /// @param all_values all values to initialize the composite type with |
| template <typename T> |
| ScalarArgs(utils::VectorRef<T> all_values) // NOLINT: implicit on purpose |
| { |
| for (auto& v : all_values) { |
| values.Push(v); |
| } |
| } |
| |
| /// Valid scalar types for args |
| using Storage = std::variant<i32, u32, f32, f16, AInt, AFloat, bool>; |
| |
| /// The vector of values |
| utils::Vector<Storage, 16> values; |
| }; |
| |
| using ast_type_func_ptr = const ast::Type* (*)(ProgramBuilder& b); |
| using ast_expr_func_ptr = const ast::Expression* (*)(ProgramBuilder& b, ScalarArgs args); |
| using ast_expr_from_double_func_ptr = const ast::Expression* (*)(ProgramBuilder& b, double v); |
| using sem_type_func_ptr = const sem::Type* (*)(ProgramBuilder& b); |
| |
| template <typename T> |
| struct DataType {}; |
| |
| /// Helper that represents no-type. Returns nullptr for all static methods. |
| template <> |
| struct DataType<void> { |
| /// @return nullptr |
| static inline const ast::Type* AST(ProgramBuilder&) { return nullptr; } |
| /// @return nullptr |
| static inline const sem::Type* Sem(ProgramBuilder&) { return nullptr; } |
| }; |
| |
| /// Helper for building bool types and expressions |
| template <> |
| struct DataType<bool> { |
| /// The element type |
| using ElementType = bool; |
| |
| /// false as bool is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST bool type |
| static inline const ast::Type* AST(ProgramBuilder& b) { return b.ty.bool_(); } |
| /// @param b the ProgramBuilder |
| /// @return the semantic bool type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::Bool>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the boolean value to init with |
| /// @return a new AST expression of the bool type |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<bool>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to bool. |
| /// @return a new AST expression of the bool type |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "bool"; } |
| }; |
| |
| /// Helper for building i32 types and expressions |
| template <> |
| struct DataType<i32> { |
| /// The element type |
| using ElementType = i32; |
| |
| /// false as i32 is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST i32 type |
| static inline const ast::Type* AST(ProgramBuilder& b) { return b.ty.i32(); } |
| /// @param b the ProgramBuilder |
| /// @return the semantic i32 type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::I32>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the i32 value to init with |
| /// @return a new AST i32 literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<i32>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to i32. |
| /// @return a new AST i32 literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "i32"; } |
| }; |
| |
| /// Helper for building u32 types and expressions |
| template <> |
| struct DataType<u32> { |
| /// The element type |
| using ElementType = u32; |
| |
| /// false as u32 is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST u32 type |
| static inline const ast::Type* AST(ProgramBuilder& b) { return b.ty.u32(); } |
| /// @param b the ProgramBuilder |
| /// @return the semantic u32 type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::U32>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the u32 value to init with |
| /// @return a new AST u32 literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<u32>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to u32. |
| /// @return a new AST u32 literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "u32"; } |
| }; |
| |
| /// Helper for building f32 types and expressions |
| template <> |
| struct DataType<f32> { |
| /// The element type |
| using ElementType = f32; |
| |
| /// false as f32 is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST f32 type |
| static inline const ast::Type* AST(ProgramBuilder& b) { return b.ty.f32(); } |
| /// @param b the ProgramBuilder |
| /// @return the semantic f32 type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::F32>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the f32 value to init with |
| /// @return a new AST f32 literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<f32>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to f32. |
| /// @return a new AST f32 literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<f32>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "f32"; } |
| }; |
| |
| /// Helper for building f16 types and expressions |
| template <> |
| struct DataType<f16> { |
| /// The element type |
| using ElementType = f16; |
| |
| /// false as f16 is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST f16 type |
| static inline const ast::Type* AST(ProgramBuilder& b) { return b.ty.f16(); } |
| /// @param b the ProgramBuilder |
| /// @return the semantic f16 type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::F16>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the f16 value to init with |
| /// @return a new AST f16 literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<f16>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to f16. |
| /// @return a new AST f16 literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "f16"; } |
| }; |
| |
| /// Helper for building abstract float types and expressions |
| template <> |
| struct DataType<AFloat> { |
| /// The element type |
| using ElementType = AFloat; |
| |
| /// false as AFloat is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @returns nullptr, as abstract floats are un-typeable |
| static inline const ast::Type* AST(ProgramBuilder&) { return nullptr; } |
| /// @param b the ProgramBuilder |
| /// @return the semantic abstract-float type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::AbstractFloat>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the abstract-float value to init with |
| /// @return a new AST abstract-float literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<AFloat>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to AFloat. |
| /// @return a new AST abstract-float literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "abstract-float"; } |
| }; |
| |
| /// Helper for building abstract integer types and expressions |
| template <> |
| struct DataType<AInt> { |
| /// The element type |
| using ElementType = AInt; |
| |
| /// false as AFloat is not a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @returns nullptr, as abstract integers are un-typeable |
| static inline const ast::Type* AST(ProgramBuilder&) { return nullptr; } |
| /// @param b the ProgramBuilder |
| /// @return the semantic abstract-int type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return b.create<sem::AbstractInt>(); } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 with the abstract-int value to init with |
| /// @return a new AST abstract-int literal value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Expr(std::get<AInt>(args.values[0])); |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to AInt. |
| /// @return a new AST abstract-int literal value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "abstract-int"; } |
| }; |
| |
| /// Helper for building vector types and expressions |
| template <uint32_t N, typename T> |
| struct DataType<vec<N, T>> { |
| /// The element type |
| using ElementType = T; |
| |
| /// true as vectors are a composite type |
| static constexpr bool is_composite = true; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST vector type |
| static inline const ast::Type* AST(ProgramBuilder& b) { |
| return b.ty.vec(DataType<T>::AST(b), N); |
| } |
| /// @param b the ProgramBuilder |
| /// @return the semantic vector type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { |
| return b.create<sem::Vector>(DataType<T>::Sem(b), N); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N with values of type T to initialize with |
| /// @return a new AST vector value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Construct(AST(b), ExprArgs(b, std::move(args))); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N with values of type T to initialize with |
| /// @return the list of expressions that are used to construct the vector |
| static inline auto ExprArgs(ProgramBuilder& b, ScalarArgs args) { |
| const bool one_value = args.values.Length() == 1; |
| utils::Vector<const ast::Expression*, N> r; |
| for (size_t i = 0; i < N; ++i) { |
| r.Push(DataType<T>::Expr(b, one_value ? args.values[0] : args.values[i])); |
| } |
| return r; |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to ElementType |
| /// @return a new AST vector value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { |
| return "vec" + std::to_string(N) + "<" + DataType<T>::Name() + ">"; |
| } |
| }; |
| |
| /// Helper for building matrix types and expressions |
| template <uint32_t N, uint32_t M, typename T> |
| struct DataType<mat<N, M, T>> { |
| /// The element type |
| using ElementType = T; |
| |
| /// true as matrices are a composite type |
| static constexpr bool is_composite = true; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST matrix type |
| static inline const ast::Type* AST(ProgramBuilder& b) { |
| return b.ty.mat(DataType<T>::AST(b), N, M); |
| } |
| /// @param b the ProgramBuilder |
| /// @return the semantic matrix type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { |
| auto* column_type = b.create<sem::Vector>(DataType<T>::Sem(b), M); |
| return b.create<sem::Matrix>(column_type, N); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N*M with values of type T to initialize with |
| /// @return a new AST matrix value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Construct(AST(b), ExprArgs(b, std::move(args))); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N*M with values of type T to initialize with |
| /// @return a new AST matrix value expression |
| static inline auto ExprArgs(ProgramBuilder& b, ScalarArgs args) { |
| const bool one_value = args.values.Length() == 1; |
| size_t next = 0; |
| utils::Vector<const ast::Expression*, N> r; |
| for (uint32_t i = 0; i < N; ++i) { |
| if (one_value) { |
| r.Push(DataType<vec<M, T>>::Expr(b, args.values[0])); |
| } else { |
| utils::Vector<T, M> v; |
| for (size_t j = 0; j < M; ++j) { |
| v.Push(std::get<T>(args.values[next++])); |
| } |
| r.Push(DataType<vec<M, T>>::Expr(b, utils::VectorRef<T>{v})); |
| } |
| } |
| return r; |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to ElementType |
| /// @return a new AST matrix value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { |
| return "mat" + std::to_string(N) + "x" + std::to_string(M) + "<" + DataType<T>::Name() + |
| ">"; |
| } |
| }; |
| |
| /// Helper for building alias types and expressions |
| template <typename T, int ID> |
| struct DataType<alias<T, ID>> { |
| /// The element type |
| using ElementType = typename DataType<T>::ElementType; |
| |
| /// true if the aliased type is a composite type |
| static constexpr bool is_composite = DataType<T>::is_composite; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST alias type |
| static inline const ast::Type* AST(ProgramBuilder& b) { |
| auto name = b.Symbols().Register("alias_" + std::to_string(ID)); |
| if (!b.AST().LookupType(name)) { |
| auto* type = DataType<T>::AST(b); |
| b.AST().AddTypeDecl(b.ty.alias(name, type)); |
| } |
| return b.create<ast::TypeName>(name); |
| } |
| /// @param b the ProgramBuilder |
| /// @return the semantic aliased type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { return DataType<T>::Sem(b); } |
| |
| /// @param b the ProgramBuilder |
| /// @param args the value nested elements will be initialized with |
| /// @return a new AST expression of the alias type |
| template <bool IS_COMPOSITE = is_composite> |
| static inline traits::EnableIf<!IS_COMPOSITE, const ast::Expression*> Expr(ProgramBuilder& b, |
| ScalarArgs args) { |
| // Cast |
| return b.Construct(AST(b), DataType<T>::Expr(b, std::move(args))); |
| } |
| |
| /// @param b the ProgramBuilder |
| /// @param args the value nested elements will be initialized with |
| /// @return a new AST expression of the alias type |
| template <bool IS_COMPOSITE = is_composite> |
| static inline traits::EnableIf<IS_COMPOSITE, const ast::Expression*> Expr(ProgramBuilder& b, |
| ScalarArgs args) { |
| // Construct |
| return b.Construct(AST(b), DataType<T>::ExprArgs(b, std::move(args))); |
| } |
| |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to ElementType |
| /// @return a new AST expression of the alias type |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "alias_" + std::to_string(ID); } |
| }; |
| |
| /// Helper for building pointer types and expressions |
| template <typename T> |
| struct DataType<ptr<T>> { |
| /// The element type |
| using ElementType = typename DataType<T>::ElementType; |
| |
| /// true if the pointer type is a composite type |
| static constexpr bool is_composite = false; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST alias type |
| static inline const ast::Type* AST(ProgramBuilder& b) { |
| return b.create<ast::Pointer>(DataType<T>::AST(b), ast::StorageClass::kPrivate, |
| ast::Access::kReadWrite); |
| } |
| /// @param b the ProgramBuilder |
| /// @return the semantic aliased type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { |
| return b.create<sem::Pointer>(DataType<T>::Sem(b), ast::StorageClass::kPrivate, |
| ast::Access::kReadWrite); |
| } |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST expression of the pointer type |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs /*unused*/) { |
| auto sym = b.Symbols().New("global_for_ptr"); |
| b.GlobalVar(sym, DataType<T>::AST(b), ast::StorageClass::kPrivate); |
| return b.AddressOf(sym); |
| } |
| |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to ElementType |
| /// @return a new AST expression of the pointer type |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { return "ptr<" + DataType<T>::Name() + ">"; } |
| }; |
| |
| /// Helper for building array types and expressions |
| template <uint32_t N, typename T> |
| struct DataType<array<N, T>> { |
| /// The element type |
| using ElementType = typename DataType<T>::ElementType; |
| |
| /// true as arrays are a composite type |
| static constexpr bool is_composite = true; |
| |
| /// @param b the ProgramBuilder |
| /// @return a new AST array type |
| static inline const ast::Type* AST(ProgramBuilder& b) { |
| if (auto* ast = DataType<T>::AST(b)) { |
| return b.ty.array(ast, u32(N)); |
| } |
| return b.ty.array(nullptr, nullptr); |
| } |
| /// @param b the ProgramBuilder |
| /// @return the semantic array type |
| static inline const sem::Type* Sem(ProgramBuilder& b) { |
| auto* el = DataType<T>::Sem(b); |
| return b.create<sem::Array>( |
| /* element */ el, |
| /* count */ N, |
| /* align */ el->Align(), |
| /* size */ N * el->Size(), |
| /* stride */ el->Align(), |
| /* implicit_stride */ el->Align()); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N with values of type T to initialize with |
| /// with |
| /// @return a new AST array value expression |
| static inline const ast::Expression* Expr(ProgramBuilder& b, ScalarArgs args) { |
| return b.Construct(AST(b), ExprArgs(b, std::move(args))); |
| } |
| /// @param b the ProgramBuilder |
| /// @param args args of size 1 or N with values of type T to initialize with |
| /// @return the list of expressions that are used to construct the array |
| static inline auto ExprArgs(ProgramBuilder& b, ScalarArgs args) { |
| const bool one_value = args.values.Length() == 1; |
| utils::Vector<const ast::Expression*, N> r; |
| for (uint32_t i = 0; i < N; i++) { |
| r.Push(DataType<T>::Expr(b, one_value ? args.values[0] : args.values[i])); |
| } |
| return r; |
| } |
| /// @param b the ProgramBuilder |
| /// @param v arg of type double that will be cast to ElementType |
| /// @return a new AST array value expression |
| static inline const ast::Expression* ExprFromDouble(ProgramBuilder& b, double v) { |
| return Expr(b, static_cast<ElementType>(v)); |
| } |
| /// @returns the WGSL name for the type |
| static inline std::string Name() { |
| return "array<" + DataType<T>::Name() + ", " + std::to_string(N) + ">"; |
| } |
| }; |
| |
| /// Struct of all creation pointer types |
| struct CreatePtrs { |
| /// ast node type create function |
| ast_type_func_ptr ast; |
| /// ast expression type create function |
| ast_expr_func_ptr expr; |
| /// ast expression type create function from double arg |
| ast_expr_from_double_func_ptr expr_from_double; |
| /// sem type create function |
| sem_type_func_ptr sem; |
| }; |
| |
| /// Returns a CreatePtrs struct instance with all creation pointer types for |
| /// type `T` |
| template <typename T> |
| constexpr CreatePtrs CreatePtrsFor() { |
| return {DataType<T>::AST, DataType<T>::Expr, DataType<T>::ExprFromDouble, DataType<T>::Sem}; |
| } |
| |
| /// Value<T> is an instance of a value of type DataType<T>. Useful for storing values to create |
| /// expressions with. |
| template <typename T> |
| struct Value { |
| /// Alias to T |
| using Type = T; |
| /// Alias to DataType<T> |
| using DataType = builder::DataType<T>; |
| /// Alias to DataType::ElementType |
| using ElementType = typename DataType::ElementType; |
| |
| /// Creates a Value<T> with `args` |
| /// @param args the args that will be passed to the expression |
| /// @returns a Value<T> |
| static Value Create(ScalarArgs args) { return Value{DataType::Expr, std::move(args)}; } |
| |
| /// Creates an `ast::Expression` for the type T passing in previously stored args |
| /// @param b the ProgramBuilder |
| /// @returns an expression node |
| const ast::Expression* Expr(ProgramBuilder& b) const { return (*expr)(b, args); } |
| |
| /// ast expression type create function |
| ast_expr_func_ptr expr; |
| /// args to create expression with |
| ScalarArgs args; |
| }; |
| |
| namespace detail { |
| /// Base template for IsValue |
| template <typename T> |
| struct IsValue : std::false_type {}; |
| /// Specialization for IsValue |
| template <typename T> |
| struct IsValue<Value<T>> : std::true_type {}; |
| } // namespace detail |
| |
| /// True if T is of type Value |
| template <typename T> |
| constexpr bool IsValue = detail::IsValue<T>::value; |
| |
| /// Returns the friendly name of ValueT |
| template <typename ValueT, typename = traits::EnableIf<IsValue<ValueT>>> |
| const char* FriendlyName() { |
| return tint::FriendlyName<typename ValueT::ElementType>(); |
| } |
| |
| /// Creates a `Value<T>` from a scalar `v` |
| template <typename T> |
| auto Val(T v) { |
| return Value<T>::Create(v); |
| } |
| |
| /// Creates a `Value<vec<N, T>>` from N scalar `args` |
| template <typename... T> |
| auto Vec(T&&... args) { |
| constexpr size_t N = sizeof...(args); |
| using FirstT = std::tuple_element_t<0, std::tuple<T...>>; |
| utils::Vector v{args...}; |
| using VT = vec<N, FirstT>; |
| return Value<VT>::Create(utils::VectorRef<FirstT>{v}); |
| } |
| |
| /// Creates a `Value<mat<C,R,T>` from C*R scalar `args` |
| template <size_t C, size_t R, typename T> |
| auto Mat(const T (&m_in)[C][R]) { |
| utils::Vector<T, C * R> m; |
| for (uint32_t i = 0; i < C; ++i) { |
| for (size_t j = 0; j < R; ++j) { |
| m.Push(m_in[i][j]); |
| } |
| } |
| return Value<mat<C, R, T>>::Create(utils::VectorRef<T>{m}); |
| } |
| |
| /// Creates a `Value<mat<2,R,T>` from column vectors `c0` and `c1` |
| template <typename T, size_t R> |
| auto Mat(const T (&c0)[R], const T (&c1)[R]) { |
| constexpr size_t C = 2; |
| utils::Vector<T, C * R> m; |
| for (auto v : c0) { |
| m.Push(v); |
| } |
| for (auto v : c1) { |
| m.Push(v); |
| } |
| return Value<mat<C, R, T>>::Create(utils::VectorRef<T>{m}); |
| } |
| |
| /// Creates a `Value<mat<3,R,T>` from column vectors `c0`, `c1`, and `c2` |
| template <typename T, size_t R> |
| auto Mat(const T (&c0)[R], const T (&c1)[R], const T (&c2)[R]) { |
| constexpr size_t C = 3; |
| utils::Vector<T, C * R> m; |
| for (auto v : c0) { |
| m.Push(v); |
| } |
| for (auto v : c1) { |
| m.Push(v); |
| } |
| for (auto v : c2) { |
| m.Push(v); |
| } |
| return Value<mat<C, R, T>>::Create(utils::VectorRef<T>{m}); |
| } |
| |
| /// Creates a `Value<mat<4,R,T>` from column vectors `c0`, `c1`, `c2`, and `c3` |
| template <typename T, size_t R> |
| auto Mat(const T (&c0)[R], const T (&c1)[R], const T (&c2)[R], const T (&c3)[R]) { |
| constexpr size_t C = 4; |
| utils::Vector<T, C * R> m; |
| for (auto v : c0) { |
| m.Push(v); |
| } |
| for (auto v : c1) { |
| m.Push(v); |
| } |
| for (auto v : c2) { |
| m.Push(v); |
| } |
| for (auto v : c3) { |
| m.Push(v); |
| } |
| return Value<mat<C, R, T>>::Create(utils::VectorRef<T>{m}); |
| } |
| |
| } // namespace builder |
| } // namespace tint::resolver |
| |
| #endif // SRC_TINT_RESOLVER_RESOLVER_TEST_HELPER_H_ |