Success/failure status for parsing‐style chains using ||.
Synopsis
Declared in <llvm/Support/LogicalResult.h>
class [[nodiscard]] ParseResult
: public LogicalResultDescription
This class represents success/failure for parsing‐like operations that find it important to chain together failable operations with ||. This is an extended version of LogicalResult that allows for explicit conversion to bool.
This class should not be used for general error handling cases ‐ we prefer to keep the logic explicit with the succeeded/`failed` predicates. However, traditional monadic‐style parsing logic can sometimes get swallowed up in boilerplate without this, so we provide this for narrow cases where it is important.
Base Classes
Name |
Description |
Efficient success‐or‐failure status, preferred over ambiguous bool results. |
Member Functions
Name |
Description |
|
Construct from a LogicalResult, defaulting to success. |
Returns true if the provided LogicalResult corresponds to a failure value. |
|
Returns true if the provided LogicalResult corresponds to a success value. |
|
Failure is true in a boolean context. |
Static Member Functions
Return Value
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Note
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The return value should not be discarded. |
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