ParsingUtils.h

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//===- ParsingUtils.h - CIRCT parsing common functions ----------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Utilities to help with parsing.
//
//===----------------------------------------------------------------------===//
 
#ifndef CIRCT_SUPPORT_PARSINGUTILS_H
#define CIRCT_SUPPORT_PARSINGUTILS_H
 
#include "circt/Support/LLVM.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/OpImplementation.h"
 
namespace circt {
namespace parsing_util {
 
/// Get a name from an SSA value string, if said value name is not a
/// number.
static inline StringAttr getNameFromSSA(MLIRContext *context, StringRef name) {
  if (!name.empty()) {
    // Ignore numeric names like %42
    assert(name.size() > 1 && name[0] == '%' && "Unknown MLIR name");
    if (isdigit(name[1]))
      name = StringRef();
    else
      name = name.drop_front();
  }
  return StringAttr::get(context, name);
}
 
//===----------------------------------------------------------------------===//
// Initializer lists
//===----------------------------------------------------------------------===//
 
/// Parses an initializer.
/// An initializer list is a list of operands, types and names on the format:
///  (%arg = %input : type, ...)
ParseResult parseInitializerList(
    mlir::OpAsmParser &parser,
    llvm::SmallVector<mlir::OpAsmParser::Argument> &inputArguments,
    llvm::SmallVector<mlir::OpAsmParser::UnresolvedOperand> &inputOperands,
    llvm::SmallVector<Type> &inputTypes, ArrayAttr &inputNames);
 
// Prints an initializer list.
void printInitializerList(OpAsmPrinter &p, ValueRange ins,
                          ArrayRef<BlockArgument> args);
 
} // namespace parsing_util
} // namespace circt
 
#endif // CIRCT_SUPPORT_PARSINGUTILS_H