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package builder
// MultiError is a list of multiple errors (actually: diagnostics) returned
// during LLVM IR generation.
type MultiError struct {
Errs []error
}
func (e *MultiError) Error() string {
// Return the first error, to conform to the error interface. Clients should
// really do a type-assertion on *MultiError.
return e.Errs[0].Error()
}
// newMultiError returns a *MultiError if there is more than one error, or
// returns that error directly when there is only one. Passing an empty slice
// will lead to a panic.
func newMultiError(errs []error) error {
switch len(errs) {
case 0:
panic("attempted to create empty MultiError")
case 1:
return errs[0]
default:
return &MultiError{errs}
}
}
// commandError is an error type to wrap os/exec.Command errors. This provides
// some more information regarding what went wrong while running a command.
type commandError struct {
Msg string
File string
Err error
}
func (e *commandError) Error() string {
return e.Msg + " " + e.File + ": " + e.Err.Error()
}
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