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8648120bbe
And remove a whole load of const_cast hackery. Semantic nodes may contain internally mutable fields (although only ever modified during resolving), so these are always passed by `const` pointer. While all AST nodes are internally immutable, we have decided that pointers to AST nodes should also be marked `const`, for consistency. There's still a collection of const_cast calls in the Resolver. These will be fixed up in a later change. Bug: tint:745 Change-Id: I046309b8e586772605fc0fe6b2d27f28806d40ef Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66606 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
// Copyright 2020 The Tint Authors. //
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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/scope_stack.h"
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#include "gtest/gtest.h"
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#include "src/program_builder.h"
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namespace tint {
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namespace {
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class ScopeStackTest : public ProgramBuilder, public testing::Test {};
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TEST_F(ScopeStackTest, Global) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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s.set_global(sym, 5);
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uint32_t val = 0;
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EXPECT_TRUE(s.get(sym, &val));
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EXPECT_EQ(val, 5u);
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}
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TEST_F(ScopeStackTest, Global_SetWithPointer) {
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auto* v = Var("my_var", ty.f32(), ast::StorageClass::kNone);
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ScopeStack<const ast::Variable*> s;
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s.set_global(v->symbol, v);
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const ast::Variable* v2 = nullptr;
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EXPECT_TRUE(s.get(v->symbol, &v2));
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EXPECT_EQ(v2->symbol, v->symbol);
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}
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TEST_F(ScopeStackTest, Global_CanNotPop) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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s.set_global(sym, 5);
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s.pop_scope();
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uint32_t val = 0;
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EXPECT_TRUE(s.get(sym, &val));
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EXPECT_EQ(val, 5u);
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}
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TEST_F(ScopeStackTest, Scope) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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s.push_scope();
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s.set(sym, 5);
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uint32_t val = 0;
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EXPECT_TRUE(s.get(sym, &val));
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EXPECT_EQ(val, 5u);
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}
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TEST_F(ScopeStackTest, Get_MissingSymbol) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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uint32_t ret = 0;
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EXPECT_FALSE(s.get(sym, &ret));
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EXPECT_EQ(ret, 0u);
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}
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TEST_F(ScopeStackTest, Has) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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Symbol sym2(2, ID());
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s.set_global(sym2, 3);
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s.push_scope();
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s.set(sym, 5);
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EXPECT_TRUE(s.has(sym));
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EXPECT_TRUE(s.has(sym2));
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}
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TEST_F(ScopeStackTest, ReturnsScopeBeforeGlobalFirst) {
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ScopeStack<uint32_t> s;
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Symbol sym(1, ID());
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s.set_global(sym, 3);
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s.push_scope();
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s.set(sym, 5);
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uint32_t ret;
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EXPECT_TRUE(s.get(sym, &ret));
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EXPECT_EQ(ret, 5u);
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}
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} // namespace
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} // namespace tint
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