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Once a `Decoration` has been parsed, it'll be placed into a `DecorationList` and validated later in the parse. In order to create error diagnostics that refer back to the decoration, we need to know its source. Bug: tint:282 Bug: tint:291 Change-Id: I38de708adbd041601b61d7e0a4d0402e9a2fe526 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/31722 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: dan sinclair <dsinclair@chromium.org>
54 lines
1.6 KiB
C++
54 lines
1.6 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 "src/ast/decoration.h"
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#include <sstream>
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#include <utility>
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#include "gtest/gtest.h"
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#include "src/ast/array_decoration.h"
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#include "src/ast/constant_id_decoration.h"
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namespace tint {
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namespace ast {
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namespace {
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using DecorationTest = testing::Test;
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TEST_F(DecorationTest, AsCorrectType) {
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auto* decoration = new ConstantIdDecoration(1, Source{});
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auto upcast = std::unique_ptr<Decoration>(decoration);
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auto downcast = As<VariableDecoration>(std::move(upcast));
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EXPECT_EQ(decoration, downcast.get());
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}
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TEST_F(DecorationTest, AsIncorrectType) {
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auto* decoration = new ConstantIdDecoration(1, Source{});
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auto upcast = std::unique_ptr<Decoration>(decoration);
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auto downcast = As<ArrayDecoration>(std::move(upcast));
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EXPECT_EQ(nullptr, downcast.get());
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}
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TEST_F(DecorationTest, Is) {
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auto decoration = std::make_unique<ConstantIdDecoration>(1, Source{});
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EXPECT_TRUE(decoration->Is<VariableDecoration>());
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EXPECT_FALSE(decoration->Is<ArrayDecoration>());
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}
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} // namespace
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} // namespace ast
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} // namespace tint
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