| // 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/ast/function.h" |
| |
| #include "src/ast/stage_decoration.h" |
| #include "src/ast/workgroup_decoration.h" |
| #include "src/program_builder.h" |
| |
| TINT_INSTANTIATE_TYPEINFO(tint::ast::Function); |
| |
| namespace tint { |
| namespace ast { |
| |
| Function::Function(const Source& source, |
| Symbol symbol, |
| VariableList params, |
| type::Type* return_type, |
| BlockStatement* body, |
| FunctionDecorationList decorations) |
| : Base(source), |
| symbol_(symbol), |
| params_(std::move(params)), |
| return_type_(return_type), |
| body_(body), |
| decorations_(std::move(decorations)) {} |
| |
| Function::Function(Function&&) = default; |
| |
| Function::~Function() = default; |
| |
| std::tuple<uint32_t, uint32_t, uint32_t> Function::workgroup_size() const { |
| for (auto* deco : decorations_) { |
| if (auto* workgroup = deco->As<WorkgroupDecoration>()) { |
| return workgroup->values(); |
| } |
| } |
| return {1, 1, 1}; |
| } |
| |
| PipelineStage Function::pipeline_stage() const { |
| for (auto* deco : decorations_) { |
| if (auto* stage = deco->As<StageDecoration>()) { |
| return stage->value(); |
| } |
| } |
| return PipelineStage::kNone; |
| } |
| |
| const Statement* Function::get_last_statement() const { |
| return body_->last(); |
| } |
| |
| Function* Function::Clone(CloneContext* ctx) const { |
| // Clone arguments outside of create() call to have deterministic ordering |
| auto src = ctx->Clone(source()); |
| auto sym = ctx->Clone(symbol()); |
| auto p = ctx->Clone(params_); |
| auto* ret = ctx->Clone(return_type_); |
| auto* b = ctx->Clone(body_); |
| auto decos = ctx->Clone(decorations_); |
| return ctx->dst->create<Function>(src, sym, p, ret, b, decos); |
| } |
| |
| bool Function::IsValid() const { |
| for (auto* param : params_) { |
| if (param == nullptr || !param->IsValid()) |
| return false; |
| } |
| if (body_ == nullptr || !body_->IsValid()) { |
| return false; |
| } |
| if (!symbol_.IsValid()) { |
| return false; |
| } |
| if (return_type_ == nullptr) { |
| return false; |
| } |
| return true; |
| } |
| |
| void Function::to_str(const semantic::Info& sem, |
| std::ostream& out, |
| size_t indent) const { |
| make_indent(out, indent); |
| out << "Function " << symbol_.to_str() << " -> " << return_type_->type_name() |
| << std::endl; |
| |
| for (auto* deco : decorations()) { |
| deco->to_str(sem, out, indent); |
| } |
| |
| make_indent(out, indent); |
| out << "("; |
| |
| if (params_.size() > 0) { |
| out << std::endl; |
| |
| for (auto* param : params_) |
| param->to_str(sem, out, indent + 2); |
| |
| make_indent(out, indent); |
| } |
| out << ")" << std::endl; |
| |
| make_indent(out, indent); |
| out << "{" << std::endl; |
| |
| if (body_ != nullptr) { |
| for (auto* stmt : *body_) { |
| stmt->to_str(sem, out, indent + 2); |
| } |
| } |
| |
| make_indent(out, indent); |
| out << "}" << std::endl; |
| } |
| |
| std::string Function::type_name() const { |
| std::ostringstream out; |
| |
| out << "__func" + return_type_->type_name(); |
| for (auto* param : params_) { |
| out << param->type()->type_name(); |
| } |
| |
| return out.str(); |
| } |
| |
| Function* FunctionList::Find(Symbol sym) const { |
| for (auto* func : *this) { |
| if (func->symbol() == sym) { |
| return func; |
| } |
| } |
| return nullptr; |
| } |
| |
| Function* FunctionList::Find(Symbol sym, PipelineStage stage) const { |
| for (auto* func : *this) { |
| if (func->symbol() == sym && func->pipeline_stage() == stage) { |
| return func; |
| } |
| } |
| return nullptr; |
| } |
| |
| bool FunctionList::HasStage(ast::PipelineStage stage) const { |
| for (auto* func : *this) { |
| if (func->pipeline_stage() == stage) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } // namespace ast |
| } // namespace tint |