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783b169bf4
Change-Id: I10dd2feeaeb86a1ee7769d2bfd172e49c2805cb3 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97843 Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/ast/array.h"
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#include <cmath>
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#include <utility>
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#include "src/tint/program_builder.h"
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TINT_INSTANTIATE_TYPEINFO(tint::ast::Array);
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namespace tint::ast {
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namespace {
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// Returns the string representation of an array size expression.
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std::string SizeExprToString(const Expression* size, const SymbolTable& symbols) {
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if (auto* ident = size->As<IdentifierExpression>()) {
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return symbols.NameFor(ident->symbol);
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}
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if (auto* literal = size->As<IntLiteralExpression>()) {
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return std::to_string(literal->value);
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}
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// This will never be exposed to the user as the Resolver will reject this
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// expression for array size.
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return "<invalid>";
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}
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} // namespace
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Array::Array(ProgramID pid,
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NodeID nid,
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const Source& src,
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const Type* subtype,
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const Expression* cnt,
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utils::VectorRef<const Attribute*> attrs)
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: Base(pid, nid, src), type(subtype), count(cnt), attributes(std::move(attrs)) {}
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Array::Array(Array&&) = default;
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Array::~Array() = default;
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std::string Array::FriendlyName(const SymbolTable& symbols) const {
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std::ostringstream out;
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for (auto* attr : attributes) {
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if (auto* stride = attr->As<ast::StrideAttribute>()) {
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out << "@stride(" << stride->stride << ") ";
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}
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}
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out << "array";
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if (type) {
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out << "<" << type->FriendlyName(symbols);
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if (count) {
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out << ", " << SizeExprToString(count, symbols);
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}
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out << ">";
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}
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return out.str();
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}
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const Array* Array::Clone(CloneContext* ctx) const {
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// Clone arguments outside of create() call to have deterministic ordering
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auto src = ctx->Clone(source);
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auto* ty = ctx->Clone(type);
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auto* cnt = ctx->Clone(count);
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auto attrs = ctx->Clone(attributes);
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return ctx->dst->create<Array>(src, ty, cnt, std::move(attrs));
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}
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} // namespace tint::ast
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