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// Copyright 2021 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/program_builder.h"
#include "src/tint/ast/assignment_statement.h"
#include "src/tint/ast/call_statement.h"
#include "src/tint/ast/variable_decl_statement.h"
#include "src/tint/debug.h"
#include "src/tint/demangler.h"
#include "src/tint/sem/expression.h"
#include "src/tint/sem/variable.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint {
ProgramBuilder::VarOptions::~VarOptions() = default;
ProgramBuilder::LetOptions::~LetOptions() = default;
ProgramBuilder::ConstOptions::~ConstOptions() = default;
ProgramBuilder::OverrideOptions::~OverrideOptions() = default;
ProgramBuilder::ProgramBuilder()
: id_(ProgramID::New()),
ast_(ast_nodes_.Create<ast::Module>(id_, AllocateNodeID(), Source{})) {}
ProgramBuilder::ProgramBuilder(ProgramBuilder&& rhs)
: id_(std::move(rhs.id_)),
last_ast_node_id_(std::move(rhs.last_ast_node_id_)),
types_(std::move(rhs.types_)),
ast_nodes_(std::move(rhs.ast_nodes_)),
sem_nodes_(std::move(rhs.sem_nodes_)),
ast_(std::move(rhs.ast_)),
sem_(std::move(rhs.sem_)),
symbols_(std::move(rhs.symbols_)),
diagnostics_(std::move(rhs.diagnostics_)) {
rhs.MarkAsMoved();
}
ProgramBuilder::~ProgramBuilder() = default;
ProgramBuilder& ProgramBuilder::operator=(ProgramBuilder&& rhs) {
rhs.MarkAsMoved();
AssertNotMoved();
id_ = std::move(rhs.id_);
last_ast_node_id_ = std::move(rhs.last_ast_node_id_);
types_ = std::move(rhs.types_);
ast_nodes_ = std::move(rhs.ast_nodes_);
sem_nodes_ = std::move(rhs.sem_nodes_);
ast_ = std::move(rhs.ast_);
sem_ = std::move(rhs.sem_);
symbols_ = std::move(rhs.symbols_);
diagnostics_ = std::move(rhs.diagnostics_);
return *this;
}
ProgramBuilder ProgramBuilder::Wrap(const Program* program) {
ProgramBuilder builder;
builder.id_ = program->ID();
builder.last_ast_node_id_ = program->HighestASTNodeID();
builder.types_ = type::Manager::Wrap(program->Types());
builder.ast_ =
builder.create<ast::Module>(program->AST().source, program->AST().GlobalDeclarations());
builder.sem_ = sem::Info::Wrap(program->Sem());
builder.symbols_ = program->Symbols();
builder.diagnostics_ = program->Diagnostics();
return builder;
}
bool ProgramBuilder::IsValid() const {
return !diagnostics_.contains_errors();
}
void ProgramBuilder::MarkAsMoved() {
AssertNotMoved();
moved_ = true;
}
void ProgramBuilder::AssertNotMoved() const {
if (moved_) {
TINT_ICE(ProgramBuilder, const_cast<ProgramBuilder*>(this)->diagnostics_)
<< "Attempting to use ProgramBuilder after it has been moved";
}
}
const type::Type* ProgramBuilder::TypeOf(const ast::Expression* expr) const {
auto* sem = Sem().Get(expr);
return sem ? sem->Type() : nullptr;
}
const type::Type* ProgramBuilder::TypeOf(const ast::Variable* var) const {
auto* sem = Sem().Get(var);
return sem ? sem->Type() : nullptr;
}
const type::Type* ProgramBuilder::TypeOf(const ast::Type* type) const {
return Sem().Get(type);
}
const type::Type* ProgramBuilder::TypeOf(const ast::TypeDecl* type_decl) const {
return Sem().Get(type_decl);
}
std::string ProgramBuilder::FriendlyName(const ast::Type* type) const {
TINT_ASSERT_PROGRAM_IDS_EQUAL(ProgramBuilder, type, ID());
return type ? type->FriendlyName(Symbols()) : "<null>";
}
std::string ProgramBuilder::FriendlyName(const type::Type* type) const {
return type ? type->FriendlyName(Symbols()) : "<null>";
}
std::string ProgramBuilder::FriendlyName(std::nullptr_t) const {
return "<null>";
}
const ast::TypeName* ProgramBuilder::TypesBuilder::Of(const ast::TypeDecl* decl) const {
return type_name(decl->name);
}
ProgramBuilder::TypesBuilder::TypesBuilder(ProgramBuilder* pb) : builder(pb) {}
const ast::Statement* ProgramBuilder::WrapInStatement(const ast::Expression* expr) {
// Create a temporary variable of inferred type from expr.
return Decl(Let(symbols_.New(), expr));
}
const ast::VariableDeclStatement* ProgramBuilder::WrapInStatement(const ast::Variable* v) {
return create<ast::VariableDeclStatement>(v);
}
const ast::Statement* ProgramBuilder::WrapInStatement(const ast::Statement* stmt) {
return stmt;
}
const ast::Function* ProgramBuilder::WrapInFunction(utils::VectorRef<const ast::Statement*> stmts) {
return Func("test_function", {}, ty.void_(), std::move(stmts),
utils::Vector{
create<ast::StageAttribute>(ast::PipelineStage::kCompute),
WorkgroupSize(1_i, 1_i, 1_i),
});
}
const constant::Value* ProgramBuilder::createSplatOrComposite(
const type::Type* type,
utils::VectorRef<const constant::Value*> elements) {
if (elements.IsEmpty()) {
return nullptr;
}
bool any_zero = false;
bool all_zero = true;
bool all_equal = true;
auto* first = elements.Front();
for (auto* el : elements) {
if (!el) {
return nullptr;
}
if (!any_zero && el->AnyZero()) {
any_zero = true;
}
if (all_zero && !el->AllZero()) {
all_zero = false;
}
if (all_equal && el != first) {
if (!el->Equal(first)) {
all_equal = false;
}
}
}
if (all_equal) {
return create<constant::Splat>(type, elements[0], elements.Length());
}
return constant_nodes_.Create<constant::Composite>(type, std::move(elements), all_zero,
any_zero);
}
} // namespace tint