| // 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. |
| |
| #include "src/tint/resolver/resolver.h" |
| |
| #include "gmock/gmock.h" |
| #include "src/tint/ast/call_statement.h" |
| #include "src/tint/resolver/resolver_test_helper.h" |
| |
| namespace tint { |
| namespace resolver { |
| namespace { |
| |
| using ResolverCallValidationTest = ResolverTest; |
| |
| TEST_F(ResolverCallValidationTest, TooFewArgs) { |
| Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(), |
| {Return()}); |
| auto* call = Call(Source{{12, 34}}, "foo", 1); |
| WrapInFunction(call); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ( |
| r()->error(), |
| "12:34 error: too few arguments in call to 'foo', expected 2, got 1"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, TooManyArgs) { |
| Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(), |
| {Return()}); |
| auto* call = Call(Source{{12, 34}}, "foo", 1, 1.0f, 1.0f); |
| WrapInFunction(call); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ( |
| r()->error(), |
| "12:34 error: too many arguments in call to 'foo', expected 2, got 3"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, MismatchedArgs) { |
| Func("foo", {Param(Sym(), ty.i32()), Param(Sym(), ty.f32())}, ty.void_(), |
| {Return()}); |
| auto* call = Call("foo", Expr(Source{{12, 34}}, true), 1.0f); |
| WrapInFunction(call); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: type mismatch for argument 1 in call to 'foo', " |
| "expected 'i32', got 'bool'"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, UnusedRetval) { |
| // fn func() -> f32 { return 1.0; } |
| // fn main() {func(); return; } |
| |
| Func("func", {}, ty.f32(), {Return(Expr(1.0f))}, {}); |
| |
| Func("main", {}, ty.void_(), |
| { |
| CallStmt(Source{{12, 34}}, Call("func")), |
| Return(), |
| }); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_VariableIdentExpr) { |
| // fn foo(p: ptr<function, i32>) {} |
| // fn main() { |
| // var z: i32 = 1; |
| // foo(&z); |
| // } |
| auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction)); |
| Func("foo", {param}, ty.void_(), {}); |
| Func("main", {}, ty.void_(), |
| { |
| Decl(Var("z", ty.i32(), Expr(1))), |
| CallStmt(Call("foo", AddressOf(Source{{12, 34}}, Expr("z")))), |
| }); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_ConstIdentExpr) { |
| // fn foo(p: ptr<function, i32>) {} |
| // fn main() { |
| // let z: i32 = 1; |
| // foo(&z); |
| // } |
| auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction)); |
| Func("foo", {param}, ty.void_(), {}); |
| Func("main", {}, ty.void_(), |
| { |
| Decl(Const("z", ty.i32(), Expr(1))), |
| CallStmt(Call("foo", AddressOf(Expr(Source{{12, 34}}, "z")))), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_NotIdentExprVar) { |
| // struct S { m: i32; }; |
| // fn foo(p: ptr<function, i32>) {} |
| // fn main() { |
| // var v: S; |
| // foo(&v.m); |
| // } |
| auto* S = Structure("S", {Member("m", ty.i32())}); |
| auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction)); |
| Func("foo", {param}, ty.void_(), {}); |
| Func("main", {}, ty.void_(), |
| { |
| Decl(Var("v", ty.Of(S))), |
| CallStmt(Call( |
| "foo", AddressOf(Source{{12, 34}}, MemberAccessor("v", "m")))), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: expected an address-of expression of a variable " |
| "identifier expression or a function parameter"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_AddressOfMemberAccessor) { |
| // struct S { m: i32; }; |
| // fn foo(p: ptr<function, i32>) {} |
| // fn main() { |
| // let v: S = S(); |
| // foo(&v.m); |
| // } |
| auto* S = Structure("S", {Member("m", ty.i32())}); |
| auto* param = Param("p", ty.pointer<i32>(ast::StorageClass::kFunction)); |
| Func("foo", {param}, ty.void_(), {}); |
| Func("main", {}, ty.void_(), |
| { |
| Decl(Const("v", ty.Of(S), Construct(ty.Of(S)))), |
| CallStmt(Call("foo", AddressOf(Expr(Source{{12, 34}}, |
| MemberAccessor("v", "m"))))), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), "12:34 error: cannot take the address of expression"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParam) { |
| // fn foo(p: ptr<function, i32>) {} |
| // fn bar(p: ptr<function, i32>) { |
| // foo(p); |
| // } |
| Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))}, |
| ty.void_(), {}); |
| Func("bar", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))}, |
| ty.void_(), ast::StatementList{CallStmt(Call("foo", Expr("p")))}); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverCallValidationTest, PointerArgument_FunctionParamWithMain) { |
| // fn foo(p: ptr<function, i32>) {} |
| // fn bar(p: ptr<function, i32>) { |
| // foo(p); |
| // } |
| // @stage(fragment) |
| // fn main() { |
| // var v: i32; |
| // bar(&v); |
| // } |
| Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))}, |
| ty.void_(), {}); |
| Func("bar", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))}, |
| ty.void_(), ast::StatementList{CallStmt(Call("foo", Expr("p")))}); |
| Func("main", ast::VariableList{}, ty.void_(), |
| { |
| Decl(Var("v", ty.i32(), Expr(1))), |
| CallStmt(Call("foo", AddressOf(Expr("v")))), |
| }, |
| { |
| Stage(ast::PipelineStage::kFragment), |
| }); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverCallValidationTest, LetPointer) { |
| // fn x(p : ptr<function, i32>) -> i32 {} |
| // @stage(fragment) |
| // fn main() { |
| // var v: i32; |
| // let p: ptr<function, i32> = &v; |
| // var c: i32 = x(p); |
| // } |
| Func("x", {Param("p", ty.pointer<i32>(ast::StorageClass::kFunction))}, |
| ty.void_(), {}); |
| auto* v = Var("v", ty.i32()); |
| auto* p = Const("p", ty.pointer(ty.i32(), ast::StorageClass::kFunction), |
| AddressOf(v)); |
| auto* c = Var("c", ty.i32(), ast::StorageClass::kNone, |
| Call("x", Expr(Source{{12, 34}}, p))); |
| Func("main", ast::VariableList{}, ty.void_(), |
| { |
| Decl(v), |
| Decl(p), |
| Decl(c), |
| }, |
| { |
| Stage(ast::PipelineStage::kFragment), |
| }); |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: expected an address-of expression of a variable " |
| "identifier expression or a function parameter"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, LetPointerPrivate) { |
| // let p: ptr<private, i32> = &v; |
| // fn foo(p : ptr<private, i32>) -> i32 {} |
| // var v: i32; |
| // @stage(fragment) |
| // fn main() { |
| // var c: i32 = foo(p); |
| // } |
| Func("foo", {Param("p", ty.pointer<i32>(ast::StorageClass::kPrivate))}, |
| ty.void_(), {}); |
| auto* v = Global("v", ty.i32(), ast::StorageClass::kPrivate); |
| auto* p = Const("p", ty.pointer(ty.i32(), ast::StorageClass::kPrivate), |
| AddressOf(v)); |
| auto* c = Var("c", ty.i32(), ast::StorageClass::kNone, |
| Call("foo", Expr(Source{{12, 34}}, p))); |
| Func("main", ast::VariableList{}, ty.void_(), |
| { |
| Decl(p), |
| Decl(c), |
| }, |
| { |
| Stage(ast::PipelineStage::kFragment), |
| }); |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "12:34 error: expected an address-of expression of a variable " |
| "identifier expression or a function parameter"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, CallVariable) { |
| // var v : i32; |
| // fn f() { |
| // v(); |
| // } |
| Global("v", ty.i32(), ast::StorageClass::kPrivate); |
| Func("f", {}, ty.void_(), {CallStmt(Call(Source{{12, 34}}, "v"))}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(error: cannot call variable 'v' |
| note: 'v' declared here)"); |
| } |
| |
| TEST_F(ResolverCallValidationTest, CallVariableShadowsFunction) { |
| // fn x() {} |
| // fn f() { |
| // var x : i32; |
| // x(); |
| // } |
| Func("x", {}, ty.void_(), {}); |
| Func("f", {}, ty.void_(), |
| { |
| Decl(Var(Source{{56, 78}}, "x", ty.i32())), |
| CallStmt(Call(Source{{12, 34}}, "x")), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), R"(error: cannot call variable 'x' |
| 56:78 note: 'x' declared here)"); |
| } |
| |
| } // namespace |
| } // namespace resolver |
| } // namespace tint |
