[all-commits] [llvm/llvm-project] b07c88: [Support] Add format object for interleaved ranges...

[Jakub Kuderski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b07c88563febdb62b82daad0480d7b6131bc54d4
      https://github.com/llvm/llvm-project/commit/b07c88563febdb62b82daad0480d7b6131bc54d4
  Author: Jakub Kuderski <jakub at nod-labs.com>
  Date:   2025-04-15 (Tue, 15 Apr 2025)

  Changed paths:
    A llvm/include/llvm/Support/InterleavedRange.h
    M llvm/unittests/Support/CMakeLists.txt
    A llvm/unittests/Support/InterleavedRangeTest.cpp

  Log Message:
  -----------
  [Support] Add format object for interleaved ranges (#135517)

Add two new format functions for printing ranges: `interleaved` and
`interleaved_array`.

This is meant to improve the ergonomics of printing ranges. Before this
patch, we have to either use `llvm::interleave` or write a for loop by
hand. For example:

Before:
```c++
ArrayRef<Type> types = ...;
ArrayRef<Values> values = ...;
LLVM_DEBUG({
  llvm::dbgs() << "Types: ";
  llvm::interleave_comma(llvm::dbgs(), types);
  llvm::dbgs() << "\n";
  llvm::dbgs() << "Values: [";
  llvm::interleave_comma(llvm::dbgs(), values);
  llvm::dbgs() << "]\n";
}):
```

After:
```c++
ArrayRef<Type> types = ...;
ArrayRef<Values> values = ...;
LLVM_DEBUG(llvm::dbgs() << "Types: " << interleaved(types) << "\n");
LLVM_DEBUG(llvm::dbgs() << "Values: " << interleaved_array(values) << "\n");
```

The separator and the prefix/suffix strings are customizable.



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