blob: 1159c91569db4f685401010031bf709f4ef7473a [file] [log] [blame]
// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/wgsl/ast/clone_context.h"
#include <string>
#include "src/tint/lang/wgsl/ast/builder.h"
#include "src/tint/utils/containers/map.h"
namespace tint::ast {
CloneContext::CloneContext(ast::Builder* to, GenerationID from) : dst(to), src_id(from) {}
CloneContext::~CloneContext() = default;
Symbol CloneContext::Clone(Symbol s) {
return cloned_symbols_.GetOrCreate(s, [&]() -> Symbol {
if (symbol_transform_) {
return symbol_transform_(s);
}
return dst->Symbols().New(s.Name());
});
}
ast::FunctionList CloneContext::Clone(const ast::FunctionList& v) {
ast::FunctionList out;
out.Reserve(v.Length());
for (const ast::Function* el : v) {
out.Add(Clone(el));
}
return out;
}
ast::Type CloneContext::Clone(const ast::Type& ty) {
return {Clone(ty.expr)};
}
const ast::Node* CloneContext::CloneNode(const ast::Node* node) {
// If the input is nullptr, there's nothing to clone - just return nullptr.
if (node == nullptr) {
return nullptr;
}
// Was Replace() called for this node?
if (auto fn = replacements_.Find(node)) {
return (*fn)();
}
// Attempt to clone using the registered replacer functions.
auto& typeinfo = node->TypeInfo();
for (auto& transform : transforms_) {
if (typeinfo.Is(transform.typeinfo)) {
if (auto* transformed = transform.function(node)) {
return transformed;
}
break;
}
}
// No transform for this type, or the transform returned nullptr.
// Clone with T::Clone().
return node->Clone(*this);
}
void CloneContext::CheckedCastFailure(const ast::Node* got, const TypeInfo& expected) {
TINT_ICE() << "Cloned object was not of the expected type\n"
<< "got: " << got->TypeInfo().name << "\n"
<< "expected: " << expected.name;
}
diag::List& CloneContext::Diagnostics() const {
return dst->Diagnostics();
}
CloneContext::CloneableTransform::CloneableTransform() = default;
CloneContext::CloneableTransform::CloneableTransform(const CloneableTransform&) = default;
CloneContext::CloneableTransform::~CloneableTransform() = default;
} // namespace tint::ast