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// Copyright 2020 The Tint Authors. //
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/scope_stack.h"
#include "gtest/gtest.h"
#include "src/ast/type/f32_type.h"
#include "src/ast/variable.h"
namespace tint {
namespace {
using ScopeStackTest = testing::Test;
TEST_F(ScopeStackTest, Global) {
ScopeStack<uint32_t> s;
s.set_global("var", 5);
uint32_t val = 0;
EXPECT_TRUE(s.get("var", &val));
EXPECT_EQ(val, 5u);
}
TEST_F(ScopeStackTest, Global_SetWithPointer) {
ast::type::F32 f32;
ast::Variable v(Source{}, "test", ast::StorageClass::kNone, &f32);
v.set_name("my_var");
ScopeStack<ast::Variable*> s;
s.set_global("var", &v);
ast::Variable* v2 = nullptr;
EXPECT_TRUE(s.get("var", &v2));
EXPECT_EQ(v2->name(), "my_var");
}
TEST_F(ScopeStackTest, Global_CanNotPop) {
ScopeStack<uint32_t> s;
s.set_global("var", 5);
s.pop_scope();
uint32_t val = 0;
EXPECT_TRUE(s.get("var", &val));
EXPECT_EQ(val, 5u);
}
TEST_F(ScopeStackTest, Scope) {
ScopeStack<uint32_t> s;
s.push_scope();
s.set("var", 5);
uint32_t val = 0;
EXPECT_TRUE(s.get("var", &val));
EXPECT_EQ(val, 5u);
}
TEST_F(ScopeStackTest, Get_MissingName) {
ScopeStack<uint32_t> s;
uint32_t ret = 0;
EXPECT_FALSE(s.get("val", &ret));
EXPECT_EQ(ret, 0u);
}
TEST_F(ScopeStackTest, Has) {
ScopeStack<uint32_t> s;
s.set_global("var2", 3);
s.push_scope();
s.set("var", 5);
EXPECT_TRUE(s.has("var"));
EXPECT_TRUE(s.has("var2"));
}
TEST_F(ScopeStackTest, ReturnsScopeBeforeGlobalFirst) {
ScopeStack<uint32_t> s;
s.set_global("var", 3);
s.push_scope();
s.set("var", 5);
uint32_t ret;
EXPECT_TRUE(s.get("var", &ret));
EXPECT_EQ(ret, 5u);
}
} // namespace
} // namespace tint