[LLVM][Support] Add new CreateFileError functions (#125906)

Add new CreateFileError functions to create a StringError with the
specified error code and prepend the file path to it

Needed for: #125345

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/unittests/Support/ErrorTest.cpp b/llvm/unittests/Support/ErrorTest.cpp
index 98d19e8..00c562e 100644
--- a/llvm/unittests/Support/ErrorTest.cpp
+++ b/llvm/unittests/Support/ErrorTest.cpp
@@ -976,6 +976,17 @@ TEST(Error, FileErrorTest) {
   handleAllErrors(std::move(FE6), [](std::unique_ptr<FileError> F) {
     EXPECT_EQ(F->messageWithoutFileInfo(), "CustomError {6}");
   });
+
+  Error FE7 =
+      createFileError("file.bin", make_error_code(std::errc::invalid_argument),
+                      "invalid argument");
+  EXPECT_EQ(toString(std::move(FE7)), "'file.bin': invalid argument");
+
+  StringRef Argument = "arg";
+  Error FE8 =
+      createFileError("file.bin", make_error_code(std::errc::invalid_argument),
+                      "invalid argument '%s'", Argument.str().c_str());
+  EXPECT_EQ(toString(std::move(FE8)), "'file.bin': invalid argument 'arg'");
 }
 
 TEST(Error, FileErrorErrorCode) {