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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/tint/ast/variable.h"
#include "src/tint/program_builder.h"
#include "src/tint/sem/variable.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Variable);
namespace tint {
namespace ast {
Variable::Variable(ProgramID pid,
const Source& src,
const Symbol& sym,
StorageClass dsc,
Access da,
const ast::Type* ty,
bool constant,
bool overridable,
const Expression* ctor,
AttributeList attrs)
: Base(pid, src),
symbol(sym),
type(ty),
is_const(constant),
is_overridable(overridable),
constructor(ctor),
attributes(std::move(attrs)),
declared_storage_class(dsc),
declared_access(da) {
TINT_ASSERT(AST, symbol.IsValid());
TINT_ASSERT(AST, is_overridable ? is_const : true);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, symbol, program_id);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, constructor, program_id);
}
Variable::Variable(Variable&&) = default;
Variable::~Variable() = default;
VariableBindingPoint Variable::BindingPoint() const {
const GroupAttribute* group = nullptr;
const BindingAttribute* binding = nullptr;
for (auto* attr : attributes) {
if (auto* g = attr->As<GroupAttribute>()) {
group = g;
} else if (auto* b = attr->As<BindingAttribute>()) {
binding = b;
}
}
return VariableBindingPoint{group, binding};
}
const Variable* Variable::Clone(CloneContext* ctx) const {
auto src = ctx->Clone(source);
auto sym = ctx->Clone(symbol);
auto* ty = ctx->Clone(type);
auto* ctor = ctx->Clone(constructor);
auto attrs = ctx->Clone(attributes);
return ctx->dst->create<Variable>(src, sym, declared_storage_class,
declared_access, ty, is_const,
is_overridable, ctor, attrs);
}
} // namespace ast
} // namespace tint