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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/if_statement.h"
#include "src/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::IfStatement);
namespace tint {
namespace ast {
IfStatement::IfStatement(ProgramID program_id,
const Source& source,
Expression* condition,
BlockStatement* body,
ElseStatementList else_stmts)
: Base(program_id, source),
condition_(condition),
body_(body),
else_statements_(std::move(else_stmts)) {
TINT_ASSERT(AST, condition_);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, condition_, program_id);
TINT_ASSERT(AST, body_);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, body_, program_id);
for (auto* el : else_statements_) {
TINT_ASSERT(AST, el);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, el, program_id);
}
}
IfStatement::IfStatement(IfStatement&&) = default;
IfStatement::~IfStatement() = default;
IfStatement* IfStatement::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source());
auto* cond = ctx->Clone(condition_);
auto* b = ctx->Clone(body_);
auto el = ctx->Clone(else_statements_);
return ctx->dst->create<IfStatement>(src, cond, b, el);
}
void IfStatement::to_str(const sem::Info& sem,
std::ostream& out,
size_t indent) const {
make_indent(out, indent);
out << "If{" << std::endl;
// Open if conditional
make_indent(out, indent + 2);
out << "(" << std::endl;
condition_->to_str(sem, out, indent + 4);
// Close if conditional
make_indent(out, indent + 2);
out << ")" << std::endl;
// Open if body
make_indent(out, indent + 2);
out << "{" << std::endl;
if (body_ != nullptr) {
for (auto* stmt : *body_) {
stmt->to_str(sem, out, indent + 4);
}
}
// Close the if body
make_indent(out, indent + 2);
out << "}" << std::endl;
// Close the If
make_indent(out, indent);
out << "}" << std::endl;
for (auto* e : else_statements_) {
e->to_str(sem, out, indent);
}
}
} // namespace ast
} // namespace tint