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authorAleksey Kladov <[email protected]>2020-11-06 21:52:22 +0000
committerAleksey Kladov <[email protected]>2020-11-06 21:52:42 +0000
commit5db789df9c767985a564a31cc593ce7f5964100e (patch)
treed912c15567800abbcaeb04798b8daf9eb1431f7f /crates/syntax/src/ast/expr_ext.rs
parent7f12a1f225c7d3397f27964ce039b55d680772d3 (diff)
Cleanup API
Diffstat (limited to 'crates/syntax/src/ast/expr_ext.rs')
-rw-r--r--crates/syntax/src/ast/expr_ext.rs64
1 files changed, 18 insertions, 46 deletions
diff --git a/crates/syntax/src/ast/expr_ext.rs b/crates/syntax/src/ast/expr_ext.rs
index eb44bb2ab..9253c97d0 100644
--- a/crates/syntax/src/ast/expr_ext.rs
+++ b/crates/syntax/src/ast/expr_ext.rs
@@ -2,7 +2,7 @@
2 2
3use crate::{ 3use crate::{
4 ast::{self, support, AstChildren, AstNode}, 4 ast::{self, support, AstChildren, AstNode},
5 AstToken, SmolStr, 5 AstToken,
6 SyntaxKind::*, 6 SyntaxKind::*,
7 SyntaxToken, T, 7 SyntaxToken, T,
8}; 8};
@@ -298,12 +298,12 @@ impl ast::ArrayExpr {
298 298
299#[derive(Clone, Debug, PartialEq, Eq, Hash)] 299#[derive(Clone, Debug, PartialEq, Eq, Hash)]
300pub enum LiteralKind { 300pub enum LiteralKind {
301 String, 301 String(ast::String),
302 ByteString, 302 ByteString(ast::ByteString),
303 IntNumber(ast::IntNumber),
304 FloatNumber(ast::FloatNumber),
303 Char, 305 Char,
304 Byte, 306 Byte,
305 IntNumber { suffix: Option<SmolStr> },
306 FloatNumber { suffix: Option<SmolStr> },
307 Bool(bool), 307 Bool(bool),
308} 308}
309 309
@@ -315,53 +315,25 @@ impl ast::Literal {
315 .and_then(|e| e.into_token()) 315 .and_then(|e| e.into_token())
316 .unwrap() 316 .unwrap()
317 } 317 }
318
319 pub fn as_int_number(&self) -> Option<ast::IntNumber> {
320 ast::IntNumber::cast(self.token())
321 }
322
323 pub fn as_string(&self) -> Option<ast::String> {
324 ast::String::cast(self.token())
325 }
326 pub fn as_byte_string(&self) -> Option<ast::ByteString> {
327 ast::ByteString::cast(self.token())
328 }
329
330 fn find_suffix(text: &str, possible_suffixes: &[&str]) -> Option<SmolStr> {
331 possible_suffixes
332 .iter()
333 .find(|&suffix| text.ends_with(suffix))
334 .map(|&suffix| SmolStr::new(suffix))
335 }
336
337 pub fn kind(&self) -> LiteralKind { 318 pub fn kind(&self) -> LiteralKind {
338 let token = self.token(); 319 let token = self.token();
339 320
321 if let Some(t) = ast::IntNumber::cast(token.clone()) {
322 return LiteralKind::IntNumber(t);
323 }
324 if let Some(t) = ast::FloatNumber::cast(token.clone()) {
325 return LiteralKind::FloatNumber(t);
326 }
327 if let Some(t) = ast::String::cast(token.clone()) {
328 return LiteralKind::String(t);
329 }
330 if let Some(t) = ast::ByteString::cast(token.clone()) {
331 return LiteralKind::ByteString(t);
332 }
333
340 match token.kind() { 334 match token.kind() {
341 INT_NUMBER => {
342 // FYI: there was a bug here previously, thus the if statement below is necessary.
343 // The lexer treats e.g. `1f64` as an integer literal. See
344 // https://github.com/rust-analyzer/rust-analyzer/issues/1592
345 // and the comments on the linked PR.
346 let text = token.text();
347 if let suffix @ Some(_) = Self::find_suffix(&text, &ast::FloatNumber::SUFFIXES) {
348 LiteralKind::FloatNumber { suffix }
349 } else {
350 LiteralKind::IntNumber {
351 suffix: Self::find_suffix(&text, &ast::IntNumber::SUFFIXES),
352 }
353 }
354 }
355 FLOAT_NUMBER => {
356 let text = token.text();
357 LiteralKind::FloatNumber {
358 suffix: Self::find_suffix(&text, &ast::FloatNumber::SUFFIXES),
359 }
360 }
361 STRING => LiteralKind::String,
362 T![true] => LiteralKind::Bool(true), 335 T![true] => LiteralKind::Bool(true),
363 T![false] => LiteralKind::Bool(false), 336 T![false] => LiteralKind::Bool(false),
364 BYTE_STRING => LiteralKind::ByteString,
365 CHAR => LiteralKind::Char, 337 CHAR => LiteralKind::Char,
366 BYTE => LiteralKind::Byte, 338 BYTE => LiteralKind::Byte,
367 _ => unreachable!(), 339 _ => unreachable!(),