03d136cf5f
This commit restructures the sub element infrastructure to be a core part of attributes and types, instead of being relegated to an interface. This establishes sub element walking/replacement as something "always there", which makes it easier to rely on for correctness/etc (which various bits of infrastructure want, such as Symbols). Attribute/Type now have `walk` and `replace` methods directly accessible, which provide power API for interacting with sub elements. As part of this, a new AttrTypeWalker class is introduced that supports caching walked attributes/types, and a friendlier API (see the simplification of symbol walking in SymbolTable.cpp). Differential Revision: https://reviews.llvm.org/D142272
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
//===- Attributes.cpp - MLIR Affine Expr Classes --------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/IR/Attributes.h"
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#include "mlir/IR/Dialect.h"
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using namespace mlir;
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using namespace mlir::detail;
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//===----------------------------------------------------------------------===//
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// AbstractAttribute
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//===----------------------------------------------------------------------===//
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void AbstractAttribute::walkImmediateSubElements(
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Attribute attr, function_ref<void(Attribute)> walkAttrsFn,
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function_ref<void(Type)> walkTypesFn) const {
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walkImmediateSubElementsFn(attr, walkAttrsFn, walkTypesFn);
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}
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Attribute
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AbstractAttribute::replaceImmediateSubElements(Attribute attr,
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ArrayRef<Attribute> replAttrs,
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ArrayRef<Type> replTypes) const {
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return replaceImmediateSubElementsFn(attr, replAttrs, replTypes);
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}
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//===----------------------------------------------------------------------===//
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// Attribute
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//===----------------------------------------------------------------------===//
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/// Return the context this attribute belongs to.
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MLIRContext *Attribute::getContext() const { return getDialect().getContext(); }
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//===----------------------------------------------------------------------===//
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// NamedAttribute
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//===----------------------------------------------------------------------===//
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NamedAttribute::NamedAttribute(StringAttr name, Attribute value)
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: name(name), value(value) {
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assert(name && value && "expected valid attribute name and value");
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assert(name.size() != 0 && "expected valid attribute name");
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}
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StringAttr NamedAttribute::getName() const { return name.cast<StringAttr>(); }
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Dialect *NamedAttribute::getNameDialect() const {
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return getName().getReferencedDialect();
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}
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void NamedAttribute::setName(StringAttr newName) {
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assert(name && "expected valid attribute name");
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name = newName;
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}
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bool NamedAttribute::operator<(const NamedAttribute &rhs) const {
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return getName().compare(rhs.getName()) < 0;
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}
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bool NamedAttribute::operator<(StringRef rhs) const {
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return getName().getValue().compare(rhs) < 0;
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}
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