[llvm] [Support] Add option to print SMDiagnostic into a buffer without the filename and location info (PR #92050)

[Artem Chikin via llvm-commits]

https://github.com/artemcm created https://github.com/llvm/llvm-project/pull/92050

None

>From cbf509f2f66f988314eb5807b464a9e67dce06f6 Mon Sep 17 00:00:00 2001
From: artemcm <achikin at apple.com>
Date: Mon, 13 May 2024 19:51:49 -0400
Subject: [PATCH] [Support] Add option to print SMDiagnostic into a buffer
 without the filename and location info

---
 llvm/include/llvm/Support/SourceMgr.h    |  2 +-
 llvm/lib/Support/SourceMgr.cpp           |  4 ++--
 llvm/unittests/Support/SourceMgrTest.cpp | 10 ++++++++++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/llvm/include/llvm/Support/SourceMgr.h b/llvm/include/llvm/Support/SourceMgr.h
index 6f5bee7f8cc22..7a4b6de1162da 100644
--- a/llvm/include/llvm/Support/SourceMgr.h
+++ b/llvm/include/llvm/Support/SourceMgr.h
@@ -317,7 +317,7 @@ class SMDiagnostic {
   ArrayRef<SMFixIt> getFixIts() const { return FixIts; }
 
   void print(const char *ProgName, raw_ostream &S, bool ShowColors = true,
-             bool ShowKindLabel = true) const;
+             bool ShowKindLabel = true, bool ShowLocation = true) const;
 };
 
 } // end namespace llvm
diff --git a/llvm/lib/Support/SourceMgr.cpp b/llvm/lib/Support/SourceMgr.cpp
index ebeff87c39549..6eaa8783a5319 100644
--- a/llvm/lib/Support/SourceMgr.cpp
+++ b/llvm/lib/Support/SourceMgr.cpp
@@ -482,7 +482,7 @@ static void printSourceLine(raw_ostream &S, StringRef LineContents) {
 static bool isNonASCII(char c) { return c & 0x80; }
 
 void SMDiagnostic::print(const char *ProgName, raw_ostream &OS, bool ShowColors,
-                         bool ShowKindLabel) const {
+                         bool ShowKindLabel, bool ShowLocation) const {
   ColorMode Mode = ShowColors ? ColorMode::Auto : ColorMode::Disable;
 
   {
@@ -491,7 +491,7 @@ void SMDiagnostic::print(const char *ProgName, raw_ostream &OS, bool ShowColors,
     if (ProgName && ProgName[0])
       S << ProgName << ": ";
 
-    if (!Filename.empty()) {
+    if (ShowLocation && !Filename.empty()) {
       if (Filename == "-")
         S << "<stdin>";
       else
diff --git a/llvm/unittests/Support/SourceMgrTest.cpp b/llvm/unittests/Support/SourceMgrTest.cpp
index cbd17ff476890..ebc8869c2fd3a 100644
--- a/llvm/unittests/Support/SourceMgrTest.cpp
+++ b/llvm/unittests/Support/SourceMgrTest.cpp
@@ -532,3 +532,13 @@ TEST_F(SourceMgrTest, FixitForTab) {
             Output);
 }
 
+TEST_F(SourceMgrTest, PrintWithoutLoc) {
+  raw_string_ostream OS(Output);
+  auto Diag = llvm::SMDiagnostic("file.in", llvm::SourceMgr::DK_Error, "message");
+  Diag.print(nullptr, OS);
+  OS.flush();
+  EXPECT_EQ("file.in: error: message\n", Output);
+  Output.clear();
+  Diag.print(nullptr, OS, false, false, false);
+  EXPECT_EQ("message\n", Output);
+}