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