| 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 | |
| 22 | TypeConstraint::TypeConstraint(const llvm::DefInit *init) |
| 23 | : TypeConstraint(init->getDef()) {} |
| 24 | |
| 25 | bool TypeConstraint::isOptional() const { |
| 26 | return def->isSubClassOf(Name: "Optional"); |
| 27 | } |
| 28 | |
| 29 | bool TypeConstraint::isVariadic() const { |
| 30 | return def->isSubClassOf(Name: "Variadic"); |
| 31 | } |
| 32 | |
| 33 | bool TypeConstraint::isVariadicOfVariadic() const { |
| 34 | return def->isSubClassOf(Name: "VariadicOfVariadic"); |
| 35 | } |
| 36 | |
| 37 | StringRef TypeConstraint::getVariadicOfVariadicSegmentSizeAttr() const { |
| 38 | assert(isVariadicOfVariadic()); |
| 39 | return def->getValueAsString(FieldName: "segmentAttrName"); |
| 40 | } |
| 41 | |
| 42 | // Returns the builder call for this constraint if this is a buildable type, |
| 43 | // returns std::nullopt otherwise. |
| 44 | std::optional<StringRef> TypeConstraint::getBuilderCall() const { |
| 45 | const llvm::Record *baseType = def; |
| 46 | if (isVariableLength()) |
| 47 | baseType = baseType->getValueAsDef(FieldName: "baseType"); |
| 48 | |
| 49 | // Check to see if this type constraint has a builder call. |
| 50 | const llvm::RecordVal *builderCall = baseType->getValue(Name: "builderCall"); |
| 51 | if (!builderCall || !builderCall->getValue()) |
| 52 | return std::nullopt; |
| 53 | return TypeSwitch<llvm::Init *, std::optional<StringRef>>( |
| 54 | builderCall->getValue()) |
| 55 | .Case<llvm::StringInit>(caseFn: [&](auto *init) { |
| 56 | StringRef value = init->getValue(); |
| 57 | return value.empty() ? std::optional<StringRef>() : value; |
| 58 | }) |
| 59 | .Default(defaultFn: [](auto *) { return std::nullopt; }); |
| 60 | } |
| 61 | |
| 62 | // Return the C++ class name for this type (which may just be ::mlir::Type). |
| 63 | std::string TypeConstraint::getCPPClassName() const { |
| 64 | StringRef className = def->getValueAsString(FieldName: "cppClassName"); |
| 65 | |
| 66 | // If the class name is already namespace resolved, use it. |
| 67 | if (className.contains(Other: "::")) |
| 68 | return className.str(); |
| 69 | |
| 70 | // Otherwise, check to see if there is a namespace from a dialect to prepend. |
| 71 | if (const llvm::RecordVal *value = def->getValue(Name: "dialect")) { |
| 72 | Dialect dialect(cast<const llvm::DefInit>(Val: value->getValue())->getDef()); |
| 73 | return (dialect.getCppNamespace() + "::"+ className).str(); |
| 74 | } |
| 75 | return className.str(); |
| 76 | } |
| 77 | |
| 78 | Type::Type(const llvm::Record *record) : TypeConstraint(record) {} |
| 79 | |
| 80 | Dialect Type::getDialect() const { |
| 81 | return Dialect(def->getValueAsDef(FieldName: "dialect")); |
| 82 | } |
| 83 |