Struct Obj

pub struct Obj { /* private fields */ }

Obj struct.

Implementations

impl Obj

pub fn from_map(obj_map: HashMap<String, Value>) -> OverResult<Obj>

Returns a new Obj created from the given HashMap.

Returns an error if the map contains an invalid field name. A valid field name must start with an alphabetic character or ‘’ and subsequent characters must be alphabetic, numeric, or ‘’.

pub fn from_map_with_parent( obj_map: HashMap<String, Value>, parent: Obj, ) -> OverResult<Obj>

Returns a new Obj created from the given HashMap with given parent.

Returns an error if the map contains an invalid field name.

See from_map for more details.

pub fn from_map_unchecked(obj_map: HashMap<String, Value>) -> Obj

Returns a new Obj created from the given HashMap.

It is faster than the safe version, from_map, if you know every field has a valid name. You can check ahead of time whether a field is valid with is_valid_field.

See from_map for more details.

pub fn from_map_with_parent_unchecked( obj_map: HashMap<String, Value>, parent: Obj, ) -> Obj

Returns a new Obj created from the given HashMap with given parent.

It is faster than the safe version, from_map_with_parent, if you know every field has a valid name. You can check ahead of time whether a field is valid with is_valid_field.

See from_map for more details.

pub fn id(&self) -> usize

Returns the ID of this Obj.

Every Obj is assigned its own globally unique ID. IDs are generated incrementally, starting at 0 for the first Obj created.

Notes

The ID is ignored when testing Obj equality.

pub fn map_ref(&self) -> &HashMap<String, Value>

Returns a reference to the inner map of this Obj.

pub fn from_file(path: &str) -> OverResult<Obj>

Returns a new Obj loaded from a file.

pub fn write_to_file(&self, path: &str) -> OverResult<()>

Writes this Obj to given file in .over representation.

Notes

Note that the fields of the Obj will be output in an unpredictable order. Also note that shorthand in the original file, including variables and file includes, is not preserved when parsing the file, and will not appear when writing to another file.

pub fn write_str(&self) -> String

Writes this Obj to a String.

Notes

See write_to_file.

pub fn with_each<F>(&self, f: F)

where F: FnMut(&String, &Value),

Iterates over each (String, Value) pair in self, applying f.

pub fn len(&self) -> usize

Returns the number of fields for this Obj (parent fields not included).

pub fn is_empty(&self) -> bool

Returns whether this Obj is empty.

pub fn ptr_eq(&self, other: &Self) -> bool

Returns whether self and other point to the same data.

pub fn contains(&self, field: &str) -> bool

Returns true if this Obj contains field.

pub fn get(&self, field: &str) -> Option<Value>

Gets the Value associated with field.

pub fn get_with_source(&self, field: &str) -> Option<(Value, Obj)>

Gets the Value associated with field and the Obj where it was found (either self or one of its parents).

pub fn get_bool(&self, field: &str) -> OverResult<bool>

Returns the bool found at field. Returns an error if the field was not found or if the Value at field is not Bool.

pub fn get_int(&self, field: &str) -> OverResult<BigInt>

Returns the BigInt found at field. Returns an error if the field was not found or if the Value at field is not Int.

pub fn get_frac(&self, field: &str) -> OverResult<BigRational>

Returns the BigRational found at field. Returns an error if the field was not found or if the Value at field is not Frac.

pub fn get_char(&self, field: &str) -> OverResult<char>

Returns the char found at field. Returns an error if the field was not found or if the Value at field is not Char.

pub fn get_str(&self, field: &str) -> OverResult<String>

Returns the String found at field. Returns an error if the field was not found or if the Value at field is not Str.

pub fn get_arr(&self, field: &str) -> OverResult<Arr>

Returns the Arr found at field. Returns an error if the field was not found or if the Value at field is not Arr.

pub fn get_tup(&self, field: &str) -> OverResult<Tup>

Returns the Tup found at field. Returns an error if the field was not found or if the Value at field is not Tup.

pub fn get_obj(&self, field: &str) -> OverResult<Obj>

Returns the Obj found at field. Returns an error if the field was not found or if the Value at field is not Obj.

pub fn has_parent(&self) -> bool

Returns whether this Obj has a parent.

pub fn get_parent(&self) -> Option<Obj>

Returns the parent for this Obj.

pub fn is_valid_field(field: &str) -> bool

Returns true if field is a valid field name for an Obj.

The first character must be alphabetic or ‘’. Subsequent characters are allowed to be alphabetic, digits, or ‘’.

pub fn is_valid_field_char(ch: char, first: bool) -> bool

Returns true if the given char is valid for a field, depending on whether it is the first char or not.

See is_valid_field for more details.

pub fn keys(&self) -> Keys<'_, String, Value>

An iterator visiting all fields (keys) in arbitrary order.

pub fn values(&self) -> Values<'_, String, Value>

An iterator visiting all values in arbitrary order.

pub fn iter(&self) -> Iter<'_, String, Value>

An iterator visiting all field-value pairs in arbitrary order.

Trait Implementations

impl Clone for Obj

fn clone(&self) -> Obj

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Obj

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

Formats the value using the given formatter.

impl Default for Obj

fn default() -> Self

Returns the “default value” for a type.

impl Display for Obj

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

Formats the value using the given formatter.

impl From<Obj> for Value

fn from(inner: Obj) -> Self

Converts to this type from the input type.

impl FromStr for Obj

type Err = OverError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq<Obj> for Value

fn eq(&self, other: &Obj) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Value> for Obj

fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for Obj

For two Objs to be equal, the following two checks must pass:

1. If either Obj has a parent, then both must have parents and the parents must be equal.
2. The two Objs must have all the same fields pointing to the same values.

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.