2020-08-12 19:31:42 +00:00
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// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/validator_impl.h"
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#include "gtest/gtest.h"
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#include "spirv/unified1/GLSL.std.450.h"
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2020-08-13 19:17:49 +00:00
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#include "src/ast/return_statement.h"
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2020-08-12 19:31:42 +00:00
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#include "src/ast/scalar_constructor_expression.h"
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#include "src/ast/sint_literal.h"
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#include "src/ast/type/f32_type.h"
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#include "src/ast/type/i32_type.h"
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#include "src/ast/type/void_type.h"
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#include "src/ast/variable.h"
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#include "src/ast/variable_decl_statement.h"
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#include "src/type_determiner.h"
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namespace tint {
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namespace {
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class TypeDeterminerHelper {
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// TODO(sarahM0): move this form this test file, type_determiner_test.cc and
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// validator_test.cc to its own file.
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public:
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TypeDeterminerHelper()
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: td_(std::make_unique<TypeDeterminer>(&ctx_, &mod_)) {}
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TypeDeterminer* td() const { return td_.get(); }
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ast::Module* mod() { return &mod_; }
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private:
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Context ctx_;
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ast::Module mod_;
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std::unique_ptr<TypeDeterminer> td_;
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};
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class ValidateFunctionTest : public TypeDeterminerHelper,
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public testing::Test {};
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2020-08-13 18:09:59 +00:00
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TEST_F(ValidateFunctionTest, FunctionEndWithoutReturnStatement_Fail) {
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// fn func -> void { var a:i32 = 2; }
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ast::type::I32Type i32;
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auto var =
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std::make_unique<ast::Variable>("a", ast::StorageClass::kNone, &i32);
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var->set_constructor(std::make_unique<ast::ScalarConstructorExpression>(
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std::make_unique<ast::SintLiteral>(&i32, 2)));
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ast::VariableList params;
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ast::type::VoidType void_type;
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auto func = std::make_unique<ast::Function>(Source{12, 34}, "func",
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std::move(params), &void_type);
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auto body = std::make_unique<ast::BlockStatement>();
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body->append(std::make_unique<ast::VariableDeclStatement>(std::move(var)));
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func->set_body(std::move(body));
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mod()->AddFunction(std::move(func));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_FALSE(v.Validate(mod()));
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EXPECT_EQ(v.error(),
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"12:34: v-0002: function must end with a return statement");
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}
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2020-08-13 18:09:59 +00:00
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TEST_F(ValidateFunctionTest, FunctionEndWithoutReturnStatementEmptyBody_Fail) {
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// fn func -> void {}
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ast::type::VoidType void_type;
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ast::VariableList params;
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auto func = std::make_unique<ast::Function>(Source{12, 34}, "func",
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std::move(params), &void_type);
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mod()->AddFunction(std::move(func));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_FALSE(v.Validate(mod()));
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EXPECT_EQ(v.error(),
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"12:34: v-0002: function must end with a return statement");
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}
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2020-08-13 19:17:49 +00:00
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TEST_F(ValidateFunctionTest,
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DISABLED_FunctionTypeMustMatchReturnStatementType_pass) {
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// TODO(sarahM0): remove DISABLED after implementing function type must match
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// return type
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// fn func -> void { return; }
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ast::type::VoidType void_type;
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ast::VariableList params;
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auto func =
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std::make_unique<ast::Function>("func", std::move(params), &void_type);
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auto body = std::make_unique<ast::BlockStatement>();
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body->append(std::make_unique<ast::ReturnStatement>());
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func->set_body(std::move(body));
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mod()->AddFunction(std::move(func));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_TRUE(v.Validate(mod())) << v.error();
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}
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TEST_F(ValidateFunctionTest,
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DISABLED_FunctionTypeMustMatchReturnStatementType_fail) {
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// TODO(sarahM0): remove DISABLED after implementing function type must match
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// return type
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// fn func -> void { return 2; }
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ast::type::VoidType void_type;
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ast::type::I32Type i32;
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ast::VariableList params;
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auto func =
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std::make_unique<ast::Function>("func", std::move(params), &void_type);
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auto body = std::make_unique<ast::BlockStatement>();
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auto return_expr = std::make_unique<ast::ScalarConstructorExpression>(
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std::make_unique<ast::SintLiteral>(&i32, 2));
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body->append(std::make_unique<ast::ReturnStatement>(Source{12, 34},
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std::move(return_expr)));
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func->set_body(std::move(body));
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mod()->AddFunction(std::move(func));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_FALSE(v.Validate(mod()));
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// TODO(sarahM0): replace 000y with a rule number
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EXPECT_EQ(
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v.error(),
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"12:34: v-000y: function type must match its return statement type");
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}
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TEST_F(ValidateFunctionTest,
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DISABLED_FunctionTypeMustMatchReturnStatementTypeF32_fail) {
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// TODO(sarahM0): remove DISABLED after implementing function type must match
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// return type
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// fn func -> f32 { return 2; }
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ast::type::VoidType void_type;
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ast::type::I32Type i32;
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ast::type::F32Type f32;
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ast::VariableList params;
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auto func = std::make_unique<ast::Function>("func", std::move(params), &f32);
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auto body = std::make_unique<ast::BlockStatement>();
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auto return_expr = std::make_unique<ast::ScalarConstructorExpression>(
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std::make_unique<ast::SintLiteral>(&i32, 2));
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body->append(std::make_unique<ast::ReturnStatement>(Source{12, 34},
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std::move(return_expr)));
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func->set_body(std::move(body));
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mod()->AddFunction(std::move(func));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_FALSE(v.Validate(mod()));
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// TODO(sarahM0): replace 000y with a rule number
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EXPECT_EQ(
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v.error(),
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"12:34: v-000y: function type must match its return statement type");
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}
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2020-08-17 15:32:38 +00:00
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TEST_F(ValidateFunctionTest, FunctionNamesMustBeUnique_fail) {
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// fn func -> i32 { return 2; }
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// fn func -> i32 { return 2; }
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ast::type::VoidType void_type;
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ast::type::I32Type i32;
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ast::VariableList params;
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auto func = std::make_unique<ast::Function>("func", std::move(params), &i32);
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auto body = std::make_unique<ast::BlockStatement>();
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auto return_expr = std::make_unique<ast::ScalarConstructorExpression>(
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std::make_unique<ast::SintLiteral>(&i32, 2));
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body->append(std::make_unique<ast::ReturnStatement>(std::move(return_expr)));
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func->set_body(std::move(body));
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ast::VariableList params_copy;
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auto func_copy = std::make_unique<ast::Function>(
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Source{12, 34}, "func", std::move(params_copy), &i32);
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auto body_copy = std::make_unique<ast::BlockStatement>();
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auto return_expr_copy = std::make_unique<ast::ScalarConstructorExpression>(
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std::make_unique<ast::SintLiteral>(&i32, 2));
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body_copy->append(
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std::make_unique<ast::ReturnStatement>(std::move(return_expr_copy)));
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func_copy->set_body(std::move(body_copy));
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mod()->AddFunction(std::move(func));
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mod()->AddFunction(std::move(func_copy));
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EXPECT_TRUE(td()->Determine()) << td()->error();
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tint::ValidatorImpl v;
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EXPECT_FALSE(v.Validate(mod()));
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EXPECT_EQ(v.error(), "12:34: v-0016: function names must be unique 'func'");
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}
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2020-08-12 19:31:42 +00:00
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} // namespace
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} // namespace tint
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