| 1 | //===- Type.cpp - Type class ----------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // Type wrapper to simplify using TableGen Record defining a MLIR Type. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "mlir/TableGen/Type.h" |
| 14 | #include "mlir/TableGen/Dialect.h" |
| 15 | #include "llvm/ADT/Twine.h" |
| 16 | #include "llvm/ADT/TypeSwitch.h" |
| 17 | #include "llvm/TableGen/Record.h" |
| 18 | |
| 19 | using namespace mlir; |
| 20 | using namespace mlir::tblgen; |
| 21 | using llvm::Record; |
| 22 | |
| 23 | TypeConstraint::TypeConstraint(const llvm::DefInit *init) |
| 24 | : TypeConstraint(init->getDef()) {} |
| 25 | |
| 26 | bool TypeConstraint::isOptional() const { |
| 27 | return def->isSubClassOf(Name: "Optional"); |
| 28 | } |
| 29 | |
| 30 | bool TypeConstraint::isVariadic() const { |
| 31 | return def->isSubClassOf(Name: "Variadic"); |
| 32 | } |
| 33 | |
| 34 | bool TypeConstraint::isVariadicOfVariadic() const { |
| 35 | return def->isSubClassOf(Name: "VariadicOfVariadic"); |
| 36 | } |
| 37 | |
| 38 | StringRef TypeConstraint::getVariadicOfVariadicSegmentSizeAttr() const { |
| 39 | assert(isVariadicOfVariadic()); |
| 40 | return def->getValueAsString(FieldName: "segmentAttrName"); |
| 41 | } |
| 42 | |
| 43 | // Returns the builder call for this constraint if this is a buildable type, |
| 44 | // returns std::nullopt otherwise. |
| 45 | std::optional<StringRef> TypeConstraint::getBuilderCall() const { |
| 46 | const Record *baseType = def; |
| 47 | if (isVariableLength()) |
| 48 | baseType = baseType->getValueAsDef(FieldName: "baseType"); |
| 49 | |
| 50 | // Check to see if this type constraint has a builder call. |
| 51 | const llvm::RecordVal *builderCall = baseType->getValue(Name: "builderCall"); |
| 52 | if (!builderCall || !builderCall->getValue()) |
| 53 | return std::nullopt; |
| 54 | return TypeSwitch<const llvm::Init *, std::optional<StringRef>>( |
| 55 | builderCall->getValue()) |
| 56 | .Case<llvm::StringInit>(caseFn: [&](auto *init) { |
| 57 | StringRef value = init->getValue(); |
| 58 | return value.empty() ? std::optional<StringRef>() : value; |
| 59 | }) |
| 60 | .Default(defaultFn: [](auto *) { return std::nullopt; }); |
| 61 | } |
| 62 | |
| 63 | // Return the C++ type for this type (which may just be ::mlir::Type). |
| 64 | StringRef TypeConstraint::getCppType() const { |
| 65 | return def->getValueAsString(FieldName: "cppType"); |
| 66 | } |
| 67 | |
| 68 | Type::Type(const Record *record) : TypeConstraint(record) {} |
| 69 | |
| 70 | Dialect Type::getDialect() const { |
| 71 | return Dialect(def->getValueAsDef(FieldName: "dialect")); |
| 72 | } |
| 73 |