greg/schala
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Import TokenType and Kw everywhere

Browse Source
This commit is contained in:
greg 2017-09-11 03:13:19 -07:00
parent 92ece39d5e
commit cac3ea86cf
1 changed files with 2 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/schala_lang/parsing.rs
View File

@ -29,6 +29,7 @@ pub enum TokenType {
Error(String), Error(String),
} }
use self::TokenType::*;
#[derive(Debug, Clone, Copy, PartialEq)] #[derive(Debug, Clone, Copy, PartialEq)]
pub enum Kw { pub enum Kw {
@ -41,6 +42,7 @@ pub enum Kw {
Trait, Impl, Trait, Impl,
True, False True, False
} }
use self::Kw::*;
lazy_static! { lazy_static! {
static ref KEYWORDS: HashMap<&'static str, Kw> = static ref KEYWORDS: HashMap<&'static str, Kw> =
@ -87,8 +89,6 @@ fn is_digit(c: &char) -> bool {
type CharIter<'a> = Peekable<Enumerate<Chars<'a>>>; type CharIter<'a> = Peekable<Enumerate<Chars<'a>>>;
pub fn tokenize(input: &str) -> Vec<Token> { pub fn tokenize(input: &str) -> Vec<Token> {
use self::TokenType::*;
let mut tokens: Vec<Token> = Vec::new(); let mut tokens: Vec<Token> = Vec::new();
let mut input: CharIter = input.chars().enumerate().peekable(); let mut input: CharIter = input.chars().enumerate().peekable();
@ -124,8 +124,6 @@ pub fn tokenize(input: &str) -> Vec<Token> {
} }
fn handle_digit(c: char, input: &mut CharIter) -> TokenType { fn handle_digit(c: char, input: &mut CharIter) -> TokenType {
use self::TokenType::*;
if c == '0' && input.peek().map_or(false, |&(_, c)| { c == 'x' }) { if c == '0' && input.peek().map_or(false, |&(_, c)| { c == 'x' }) {
input.next(); input.next();
HexNumberSigil HexNumberSigil
@ -366,7 +364,6 @@ pub enum Expression {
impl Parser { impl Parser {
fn program(&mut self) -> ParseResult<AST> { fn program(&mut self) -> ParseResult<AST> {
use self::TokenType::*;
let mut statements = Vec::new(); let mut statements = Vec::new();
loop { loop {
match self.peek() { match self.peek() {
@ -382,7 +379,6 @@ impl Parser {
} }
fn statement(&mut self) -> ParseResult<Statement> { fn statement(&mut self) -> ParseResult<Statement> {
use self::TokenType::*;
use self::Kw::*; use self::Kw::*;
//TODO handle error recovery here //TODO handle error recovery here
match self.peek() { match self.peek() {
@ -409,14 +405,12 @@ impl Parser {
} }
fn literal(&mut self) -> ParseResult<Expression> { fn literal(&mut self) -> ParseResult<Expression> {
use self::TokenType::*;
match self.peek() { match self.peek() {
DigitGroup(_) | HexNumberSigil | BinNumberSigil | Period => self.number_literal(), DigitGroup(_) | HexNumberSigil | BinNumberSigil | Period => self.number_literal(),
_ => unimplemented!(), _ => unimplemented!(),
} }
} }
fn number_literal(&mut self) -> ParseResult<Expression> { fn number_literal(&mut self) -> ParseResult<Expression> {
use self::TokenType::*;
match self.peek() { match self.peek() {
HexNumberSigil | BinNumberSigil => self.int_literal(), HexNumberSigil | BinNumberSigil => self.int_literal(),
_ => self.float_literal(), _ => self.float_literal(),
@ -459,7 +453,6 @@ impl Parser {
} }
fn digits(&mut self) -> ParseResult<String> { fn digits(&mut self) -> ParseResult<String> {
use self::TokenType::*;
let mut ds = String::new(); let mut ds = String::new();
loop { loop {
match self.peek() { match self.peek() {