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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/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(ProgramID pid,
const Source& src,
Symbol sym,
VariableList parameters,
const Type* return_ty,
const BlockStatement* b,
DecorationList decos,
DecorationList return_type_decos)
: Base(pid, src),
symbol(sym),
params(std::move(parameters)),
return_type(return_ty),
body(b),
decorations(std::move(decos)),
return_type_decorations(std::move(return_type_decos)) {
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, symbol, program_id);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, body, program_id);
for (auto* param : params) {
TINT_ASSERT(AST, param && param->is_const);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, param, program_id);
}
TINT_ASSERT(AST, symbol.IsValid());
TINT_ASSERT(AST, return_type);
for (auto* deco : decorations) {
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, deco, program_id);
}
for (auto* deco : return_type_decorations) {
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, deco, program_id);
}
}
Function::Function(Function&&) = default;
Function::~Function() = default;
PipelineStage Function::PipelineStage() const {
if (auto* stage = GetDecoration<StageDecoration>(decorations)) {
return stage->stage;
}
return PipelineStage::kNone;
}
const 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);
auto ret_decos = ctx->Clone(return_type_decorations);
return ctx->dst->create<Function>(src, sym, p, ret, b, decos, ret_decos);
}
const Function* FunctionList::Find(Symbol sym) const {
for (auto* func : *this) {
if (func->symbol == sym) {
return func;
}
}
return nullptr;
}
const Function* FunctionList::Find(Symbol sym, PipelineStage stage) const {
for (auto* func : *this) {
if (func->symbol == sym && func->PipelineStage() == stage) {
return func;
}
}
return nullptr;
}
bool FunctionList::HasStage(ast::PipelineStage stage) const {
for (auto* func : *this) {
if (func->PipelineStage() == stage) {
return true;
}
}
return false;
}
} // namespace ast
} // namespace tint