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Fix MSVC build by not putting an error_code directly in a union.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194032 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-11-05 01:07:06 +00:00
parent f94b3480fc
commit 23c8d2bf86
1 changed files with 17 additions and 6 deletions
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23
include/llvm/Support/ErrorOr.h
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@ -115,11 +115,11 @@ public:
is_error_condition_enum<E>::value,
void *>::type = 0)
: HasError(true), IsValid(true) {
Error = make_error_code(ErrorCode);
new (getError()) error_code(make_error_code(ErrorCode));
}
ErrorOr(llvm::error_code EC) : HasError(true), IsValid(true) {
Error = EC;
new (getError()) error_code(EC);
}
ErrorOr(T Val) : HasError(false), IsValid(true) {
@ -186,7 +186,7 @@ public:
operator llvm::error_code() const {
assert(IsValid && "Can't do anything on a default constructed ErrorOr!");
return HasError ? Error : llvm::error_code::success();
return HasError ? *getError() : llvm::error_code::success();
}
pointer operator ->() {
@ -210,8 +210,8 @@ private:
new (get()) storage_type(*Other.get());
} else {
// Get other's error.
Error = Other.Error;
HasError = true;
new (getError()) error_code(Other);
}
}
@ -249,8 +249,8 @@ private:
Other.IsValid = false;
} else {
// Get other's error.
Error = Other.Error;
HasError = true;
new (getError()) error_code(Other);
// Tell other not to do any destruction.
Other.IsValid = false;
}
@ -286,9 +286,20 @@ private:
return reinterpret_cast<const storage_type*>(TStorage.buffer);
}
error_code *getError() {
assert(IsValid && "Can't do anything on a default constructed ErrorOr!");
assert(HasError && "Cannot get error when a value exists!");
return reinterpret_cast<error_code*>(ErrorStorage.buffer);
}
const error_code *getError() const {
return const_cast<ErrorOr<T> *>(this)->getError();
}
union {
AlignedCharArrayUnion<storage_type> TStorage;
error_code Error;
AlignedCharArrayUnion<error_code> ErrorStorage;
};
bool HasError : 1;
bool IsValid : 1;