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https://github.com/encounter/dawn-cmake.git
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0a196c13c8
BUG=tint:50 Change-Id: Ie19a1af6a97a49a67dcc7474991c960b986ddebe Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19782 Reviewed-by: David Neto <dneto@google.com>
143 lines
4.7 KiB
C++
143 lines
4.7 KiB
C++
// 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 "gtest/gtest.h"
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#include "src/ast/binary_expression.h"
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#include "src/ast/bool_literal.h"
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#include "src/ast/identifier_expression.h"
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#include "src/ast/scalar_constructor_expression.h"
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#include "src/reader/wgsl/parser_impl.h"
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#include "src/reader/wgsl/parser_impl_test_helper.h"
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namespace tint {
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namespace reader {
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namespace wgsl {
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namespace {
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TEST_F(ParserImplTest, RelationalExpression_Parses_LessThan) {
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auto* p = parser("a < true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e, nullptr);
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ASSERT_TRUE(e->IsBinary());
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auto* rel = e->AsBinary();
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EXPECT_EQ(ast::BinaryOp::kLessThan, rel->op());
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ASSERT_TRUE(rel->lhs()->IsIdentifier());
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auto* ident = rel->lhs()->AsIdentifier();
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ASSERT_EQ(ident->name().size(), 1u);
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EXPECT_EQ(ident->name()[0], "a");
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ASSERT_TRUE(rel->rhs()->IsConstructor());
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ASSERT_TRUE(rel->rhs()->AsConstructor()->IsScalarConstructor());
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auto* init = rel->rhs()->AsConstructor()->AsScalarConstructor();
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ASSERT_TRUE(init->literal()->IsBool());
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ASSERT_TRUE(init->literal()->AsBool()->IsTrue());
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}
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TEST_F(ParserImplTest, RelationalExpression_Parses_GreaterThan) {
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auto* p = parser("a > true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e, nullptr);
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ASSERT_TRUE(e->IsBinary());
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auto* rel = e->AsBinary();
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EXPECT_EQ(ast::BinaryOp::kGreaterThan, rel->op());
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ASSERT_TRUE(rel->lhs()->IsIdentifier());
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auto* ident = rel->lhs()->AsIdentifier();
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ASSERT_EQ(ident->name().size(), 1u);
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EXPECT_EQ(ident->name()[0], "a");
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ASSERT_TRUE(rel->rhs()->IsConstructor());
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ASSERT_TRUE(rel->rhs()->AsConstructor()->IsScalarConstructor());
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auto* init = rel->rhs()->AsConstructor()->AsScalarConstructor();
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ASSERT_TRUE(init->literal()->IsBool());
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ASSERT_TRUE(init->literal()->AsBool()->IsTrue());
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}
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TEST_F(ParserImplTest, RelationalExpression_Parses_LessThanEqual) {
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auto* p = parser("a <= true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e, nullptr);
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ASSERT_TRUE(e->IsBinary());
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auto* rel = e->AsBinary();
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EXPECT_EQ(ast::BinaryOp::kLessThanEqual, rel->op());
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ASSERT_TRUE(rel->lhs()->IsIdentifier());
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auto* ident = rel->lhs()->AsIdentifier();
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ASSERT_EQ(ident->name().size(), 1u);
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EXPECT_EQ(ident->name()[0], "a");
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ASSERT_TRUE(rel->rhs()->IsConstructor());
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ASSERT_TRUE(rel->rhs()->AsConstructor()->IsScalarConstructor());
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auto* init = rel->rhs()->AsConstructor()->AsScalarConstructor();
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ASSERT_TRUE(init->literal()->IsBool());
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ASSERT_TRUE(init->literal()->AsBool()->IsTrue());
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}
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TEST_F(ParserImplTest, RelationalExpression_Parses_GreaterThanEqual) {
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auto* p = parser("a >= true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e, nullptr);
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ASSERT_TRUE(e->IsBinary());
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auto* rel = e->AsBinary();
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EXPECT_EQ(ast::BinaryOp::kGreaterThanEqual, rel->op());
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ASSERT_TRUE(rel->lhs()->IsIdentifier());
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auto* ident = rel->lhs()->AsIdentifier();
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ASSERT_EQ(ident->name().size(), 1u);
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EXPECT_EQ(ident->name()[0], "a");
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ASSERT_TRUE(rel->rhs()->IsConstructor());
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ASSERT_TRUE(rel->rhs()->AsConstructor()->IsScalarConstructor());
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auto* init = rel->rhs()->AsConstructor()->AsScalarConstructor();
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ASSERT_TRUE(init->literal()->IsBool());
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ASSERT_TRUE(init->literal()->AsBool()->IsTrue());
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}
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TEST_F(ParserImplTest, RelationalExpression_InvalidLHS) {
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auto* p = parser("if (a) {} < true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_EQ(e, nullptr);
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}
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TEST_F(ParserImplTest, RelationalExpression_InvalidRHS) {
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auto* p = parser("true < if (a) {}");
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auto e = p->relational_expression();
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ASSERT_TRUE(p->has_error());
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ASSERT_EQ(e, nullptr);
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EXPECT_EQ(p->error(), "1:8: unable to parse right side of < expression");
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}
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TEST_F(ParserImplTest, RelationalExpression_NoOr_ReturnsLHS) {
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auto* p = parser("a true");
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auto e = p->relational_expression();
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_NE(e, nullptr);
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ASSERT_TRUE(e->IsIdentifier());
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}
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} // namespace
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} // namespace wgsl
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} // namespace reader
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} // namespace tint
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