Enum vasp_poscar::ValidationError

pub enum ValidationError {
    NewlineInComment,
    InvalidSymbol(Option<String>),
    NoAtoms,
    BadScaleLine,
    InconsistentNumGroups,
    WrongLength(&'static str, usize),
    // some variants omitted
}

Covers all the reasons why RawPoscar::validate might get mad at you.

Beyond checking obvious problems like mismatched lengths, these limitations also exist to ensure that a Poscar can be roundtripped through its file representation.

The variants are public so that by looking at the docs you can see all the possible errors. That said, you have no good reason to write code that matches on this.

...right?

Variants

NewlineInComment

The comment line is more than one line.

InvalidSymbol(Option<String>)

A requirement on group_symbols was violated.

There are a few more restrictions in addition to the no-leading-digit restriction mentioned in format.md, in order to ensure roundtripping:

• A symbol may not be the empty string
• A symbol may not contain whitespace

NoAtoms

Poscar is required to have at least one atom.

BadScaleLine

The inner value in the scale line must be positive.

InconsistentNumGroups

Mismatch between group_counts and group_symbols lengths.

WrongLength(&'static str, usize)

Length of a member is incorrect.

Trait Implementations

impl Debug for ValidationError

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Fail for ValidationError

fn cause(&self) -> Option<&Fail>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D> where
    D: Display + Send + Sync + 'static, 

Provides context for this failure.

fn compat(self) -> Compat<Self>

Wraps this failure in a compatibility wrapper that implements std::error::Error.

fn causes(&self) -> Causes

Returns a iterator over the causes of this Fail with itself as the first item and the root_cause as the final item.

fn root_cause(&self) -> &(Fail + 'static)

Returns the "root cause" of this Fail - the last value in the cause chain which does not return an underlying cause.

impl Display for ValidationError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.