[llvm] r358577 - [LLVM-C] Add DIFile Field Accesssors

[Robert Widmann via llvm-commits]

Author: codafi
Date: Wed Apr 17 06:29:14 2019
New Revision: 358577

URL: http://llvm.org/viewvc/llvm-project?rev=358577&view=rev
Log:
[LLVM-C] Add DIFile Field Accesssors

Summary:
Add accessors for the file, directory, source file name (curiously, an `Optional` value?), of a DIFile.

This is intended to replace the LLVMValueRef-based accessors used in D52239

Reviewers: whitequark, jberdine, deadalnix

Reviewed By: whitequark, jberdine

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60489

Modified:
    llvm/trunk/include/llvm-c/DebugInfo.h
    llvm/trunk/lib/IR/DebugInfo.cpp

Modified: llvm/trunk/include/llvm-c/DebugInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm-c/DebugInfo.h?rev=358577&r1=358576&r2=358577&view=diff
==============================================================================
--- llvm/trunk/include/llvm-c/DebugInfo.h (original)
+++ llvm/trunk/include/llvm-c/DebugInfo.h Wed Apr 17 06:29:14 2019
@@ -459,6 +459,40 @@ LLVMMetadataRef LLVMDILocationGetScope(L
  */
 LLVMMetadataRef LLVMDILocationGetInlinedAt(LLVMMetadataRef Location);
 
+/**
+ * Get the metadata of the file associated with a given scope.
+ * \param Scope     The scope object.
+ *
+ * @see DIScope::getFile()
+ */
+LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope);
+
+/**
+ * Get the directory of a given file.
+ * \param File     The file object.
+ * \param Len      The length of the returned string.
+ *
+ * @see DIFile::getDirectory()
+ */
+const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len);
+
+/**
+ * Get the name of a given file.
+ * \param File     The file object.
+ * \param Len      The length of the returned string.
+ *
+ * @see DIFile::getFilename()
+ */
+const char *LLVMDIFileGetFilename(LLVMMetadataRef File, unsigned *Len);
+
+/**
+ * Get the source of a given file.
+ * \param File     The file object.
+ * \param Len      The length of the returned string.
+ *
+ * @see DIFile::getSource()
+ */
+const char *LLVMDIFileGetSource(LLVMMetadataRef File, unsigned *Len);
 
 /**
  * Create a type array.

Modified: llvm/trunk/lib/IR/DebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfo.cpp?rev=358577&r1=358576&r2=358577&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DebugInfo.cpp (original)
+++ llvm/trunk/lib/IR/DebugInfo.cpp Wed Apr 17 06:29:14 2019
@@ -903,6 +903,31 @@ LLVMMetadataRef LLVMDILocationGetInlined
   return wrap(unwrapDI<DILocation>(Location)->getInlinedAt());
 }
 
+LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope) {
+  return wrap(unwrapDI<DIScope>(Scope)->getFile());
+}
+
+const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len) {
+  auto Dir = unwrapDI<DIFile>(File)->getDirectory();
+  *Len = Dir.size();
+  return Dir.data();
+}
+
+const char *LLVMDIFileGetFilename(LLVMMetadataRef File, unsigned *Len) {
+  auto Name = unwrapDI<DIFile>(File)->getFilename();
+  *Len = Name.size();
+  return Name.data();
+}
+
+const char *LLVMDIFileGetSource(LLVMMetadataRef File, unsigned *Len) {
+  if (auto Src = unwrapDI<DIFile>(File)->getSource()) {
+    *Len = Src->size();
+    return Src->data();
+  }
+  *Len = 0;
+  return "";
+}
+
 LLVMMetadataRef LLVMDIBuilderCreateEnumerator(LLVMDIBuilderRef Builder,
                                               const char *Name, size_t NameLen,
                                               int64_t Value,