Module spin_sdk.wit.imports.error

Classes

class Error

A resource which represents some error information.

The only method provided by this resource is to-debug-string, which provides some human-readable information about the error.

In the wasi:io package, this resource is returned through the wasi:io/streams/stream-error type.

To provide more specific error information, other interfaces may provide functions to further "downcast" this error into more specific error information. For example, errors returned in streams derived from filesystem types to be described using the filesystem's own error-code type, using the function wasi:filesystem/types/filesystem-error-code, which takes a parameter borrow<error> and returns option<wasi:filesystem/types/error-code>.

The set of functions which can "downcast" an error into a more concrete type is open.

Expand source code

class Error:
    """
    A resource which represents some error information.
    
    The only method provided by this resource is `to-debug-string`,
    which provides some human-readable information about the error.
    
    In the `wasi:io` package, this resource is returned through the
    `wasi:io/streams/stream-error` type.
    
    To provide more specific error information, other interfaces may
    provide functions to further "downcast" this error into more specific
    error information. For example, `error`s returned in streams derived
    from filesystem types to be described using the filesystem's own
    error-code type, using the function
    `wasi:filesystem/types/filesystem-error-code`, which takes a parameter
    `borrow<error>` and returns
    `option<wasi:filesystem/types/error-code>`.
    
    The set of functions which can "downcast" an `error` into a more
    concrete type is open.
    """
    
    def to_debug_string(self) -> str:
        """
        Returns a string that is suitable to assist humans in debugging
        this error.
        
        WARNING: The returned string should not be consumed mechanically!
        It may change across platforms, hosts, or other implementation
        details. Parsing this string is a major platform-compatibility
        hazard.
        """
        raise NotImplementedError
    def __enter__(self) -> Self:
        """Returns self"""
        return self
                                
    def __exit__(self, exc_type: type[BaseException] | None, exc_value: BaseException | None, traceback: TracebackType | None) -> bool | None:
        """
        Release this resource.
        """
        raise NotImplementedError

Methods

def to_debug_string(self) ‑> str

Returns a string that is suitable to assist humans in debugging this error.

WARNING: The returned string should not be consumed mechanically! It may change across platforms, hosts, or other implementation details. Parsing this string is a major platform-compatibility hazard.