forked from OSchip/llvm-project
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
//===- Dialect.cpp - Dialect implementation -------------------------------===//
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//
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// Copyright 2019 The MLIR 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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// =============================================================================
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#include "mlir/IR/Dialect.h"
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#include "mlir/IR/DialectHooks.h"
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#include "mlir/IR/MLIRContext.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/Regex.h"
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using namespace mlir;
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// Registry for all dialect allocation functions.
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static llvm::ManagedStatic<SmallVector<DialectAllocatorFunction, 8>>
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dialectRegistry;
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// Registry for functions that set dialect hooks.
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static llvm::ManagedStatic<SmallVector<DialectHooksSetter, 8>>
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dialectHooksRegistry;
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/// Registers a specific dialect creation function with the system, typically
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/// used through the DialectRegistration template.
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void mlir::registerDialectAllocator(const DialectAllocatorFunction &function) {
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assert(function &&
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"Attempting to register an empty dialect initialize function");
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dialectRegistry->push_back(function);
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}
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/// Registers a function to set specific hooks for a specific dialect, typically
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/// used through the DialectHooksRegistreation template.
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void mlir::registerDialectHooksSetter(const DialectHooksSetter &function) {
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assert(
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function &&
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"Attempting to register an empty dialect hooks initialization function");
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dialectHooksRegistry->push_back(function);
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}
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/// Registers all dialects and their const folding hooks with the specified
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/// MLIRContext.
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void mlir::registerAllDialects(MLIRContext *context) {
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for (const auto &fn : *dialectRegistry)
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fn(context);
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for (const auto &fn : *dialectHooksRegistry) {
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fn(context);
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}
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}
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Dialect::Dialect(StringRef namePrefix, MLIRContext *context)
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: namePrefix(namePrefix), context(context) {
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assert(isValidNamespace(namePrefix) && "invalid dialect namespace");
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registerDialect(context);
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}
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Dialect::~Dialect() {}
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/// Parse a type registered to this dialect.
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Type Dialect::parseType(StringRef tyData, Location loc,
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MLIRContext *context) const {
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context->emitError(loc, "dialect '" + getNamespace() +
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"' provides no type parsing hook");
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return Type();
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}
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/// Utility function that returns if the given string is a valid dialect
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/// namespace.
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bool Dialect::isValidNamespace(StringRef str) {
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if (str.empty())
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return true;
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llvm::Regex dialectNameRegex("^[a-zA-Z_][a-zA-Z_0-9\\$]*$");
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return dialectNameRegex.match(str);
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}
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