[Mlir-commits] [mlir] [mlir][EmitC] Refactor MLIR Translate To Cpp (PR #84973)

[Mehdi Amini]

================
@@ -0,0 +1,85 @@
+//===- CppTranslationUtils.h - Helpers to used in C++ emitter ---*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines common helper functions used across different dialects
+// during the Cpp translation.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TARGET_CPP_CPPTRANSLATIONUTILS_H
+#define MLIR_TARGET_CPP_CPPTRANSLATIONUTILS_H
+
+#include "mlir/Dialect/EmitC/IR/EmitC.h"
+#include "mlir/Target/Cpp/TranslateToCpp.h"
+
+using namespace mlir;
+
+/// Convenience functions to produce interleaved output with functions returning
+/// a LogicalResult. This is different than those in STLExtras as functions used
+/// on each element doesn't return a string.
+template <typename ForwardIterator, typename UnaryFunctor,
+          typename NullaryFunctor>
+inline LogicalResult
+interleaveWithError(ForwardIterator begin, ForwardIterator end,
+                    UnaryFunctor eachFn, NullaryFunctor betweenFn) {
+  if (begin == end)
+    return success();
+  if (failed(eachFn(*begin)))
+    return failure();
+  ++begin;
+  for (; begin != end; ++begin) {
+    betweenFn();
+    if (failed(eachFn(*begin)))
+      return failure();
+  }
+  return success();
+}
+
+template <typename Container, typename UnaryFunctor, typename NullaryFunctor>
+inline LogicalResult interleaveWithError(const Container &c,
+                                         UnaryFunctor eachFn,
+                                         NullaryFunctor betweenFn) {
+  return interleaveWithError(c.begin(), c.end(), eachFn, betweenFn);
+}
+
+template <typename Container, typename UnaryFunctor>
+inline LogicalResult interleaveCommaWithError(const Container &c,
+                                              raw_ostream &os,
+                                              UnaryFunctor eachFn) {
+  return interleaveWithError(c.begin(), c.end(), eachFn, [&]() { os << ", "; });
+}
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joker-eph wrote:

This does not belong here, it seems like a generic MLIR utility.

https://github.com/llvm/llvm-project/pull/84973