mirror of
https://github.com/encounter/dawn-cmake.git
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1c9b486d6e
Match the more common usage for the expression type. Bug: tint:37 Change-Id: Ia5d48a0444742ec4e304ea1036e499b3d7cad682 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18981 Reviewed-by: Ryan Harrison <rharrison@chromium.org>
77 lines
2.4 KiB
C++
77 lines
2.4 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, AndExpression_Parses) {
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auto p = parser("a & true");
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auto e = p->and_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::kAnd, 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(), 1);
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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, AndExpression_InvalidLHS) {
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auto p = parser("if (a) {} & true");
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auto e = p->and_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, AndExpression_InvalidRHS) {
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auto p = parser("true & if (a) {}");
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auto e = p->and_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, AndExpression_NoOr_ReturnsLHS) {
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auto p = parser("a true");
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auto e = p->and_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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