Struct Context

pub struct Context<'a> { /* private fields */ }

Preprocessor context

Implementations

impl<'a> Context<'a>

pub fn new(entry: String) -> Self

Create a new Context

pub fn stack(&'a self, source: Token) -> Context<'a>

Create a new Context from a parent

pub fn push(&mut self, source: Token)

Push a Token to the trace

pub fn pop(&mut self) -> Option<Token>

Pop a Token from the trace

pub fn trace(&self) -> Vec<Token>

Get the current trace

pub const fn ifstates(&self) -> &IfStates

Get the current IfState

pub fn ifstates_mut(&mut self) -> &mut IfStates

Get the current IfState mutably

pub const fn definitions(&self) -> &Defines

Get the current Definitions

pub fn definitions_mut(&mut self) -> &mut Defines

Get the current Definitions mutably

pub const fn entry(&self) -> &String

Get the entry name

pub const fn current_file(&self) -> &String

Get the current file

pub fn set_current_file(&mut self, file: String)

Set the current file

pub fn define( &mut self, ident: String, source: Token, definition: Definition, ) -> Result<(), Error>

Define a macro Definition

Errors

Error::ChangeBuiltin if the macro is a builtin macro

pub fn undefine( &mut self, ident: &str, source: &Token, ) -> Result<Option<(Token, Definition)>, Error>

Undefine a macro Definition

Errors

Error::ChangeBuiltin if the macro is a builtin macro

pub fn has(&self, ident: &str) -> bool

Check if a macro Definition exists

pub fn get(&self, ident: &str, token: &Token) -> Option<(Token, Definition)>

Get a macro Definition

Trait Implementations

impl<'a> Clone for Context<'a>

fn clone(&self) -> Context<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Context<'a>

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

Formats the value using the given formatter.