commit 19402ce79a896563823fff45b853f229df4c1261
author Lang Hames <lhames@gmail.com> Thu Oct 15 17:31:14 2020 -0700
committer Lang Hames <lhames@gmail.com> Mon Oct 19 01:59:04 2020 -0700
tree 9fc2af882c39f42064f900928ecc55d4bd6b2c42
parent 4b477e776382a083e2bee2c1eb66068ad9186189

[Support] Add a C-API function to create a StringError instance.

This will allow C API clients to return errors from callbacks. This
functionality will be used in upcoming Orc C-bindings functions.

llvm/include/llvm-c/Error.h

diff --git a/llvm/include/llvm-c/Error.h b/llvm/include/llvm-c/Error.h
index 92f81bf..bc702ac 100644
--- a/llvm/include/llvm-c/Error.h
+++ b/llvm/include/llvm-c/Error.h
@@ -62,6 +62,11 @@
  */
 LLVMErrorTypeId LLVMGetStringErrorTypeId(void);
 
+/**
+ * Create a StringError.
+ */
+LLVMErrorRef LLVMCreateStringError(const char *ErrMsg);
+
 LLVM_C_EXTERN_C_END
 
 #endif

llvm/lib/Support/Error.cpp

diff --git a/llvm/lib/Support/Error.cpp b/llvm/lib/Support/Error.cpp
index 315a11e..e7ab438 100644
--- a/llvm/lib/Support/Error.cpp
+++ b/llvm/lib/Support/Error.cpp
@@ -168,3 +168,7 @@
 LLVMErrorTypeId LLVMGetStringErrorTypeId() {
   return reinterpret_cast<void *>(&StringError::ID);
 }
+
+LLVMErrorRef LLVMCreateStringError(const char *ErrMsg) {
+  return wrap(make_error<StringError>(ErrMsg, inconvertibleErrorCode()));
+}