move all parsing related bits to a separate module

crates/ra_syntax/src/lib.rs

@@ -18,13 +18,7 @@
 
 pub mod algo;
 pub mod ast;
-mod lexer;
-#[macro_use]
-mod token_set;
-mod grammar;
-mod parser_api;
-mod parser_impl;
-mod reparsing;
+mod parsing;
 mod string_lexing;
 mod syntax_kinds;
 /// Utilities for simple uses of the parser.
@@ -36,10 +30,10 @@ mod ptr;
 pub use rowan::{SmolStr, TextRange, TextUnit};
 pub use crate::{
     ast::AstNode,
-    lexer::{tokenize, Token},
     syntax_kinds::SyntaxKind,
     syntax_node::{Direction, SyntaxError, SyntaxNode, WalkEvent, Location, TreeArc},
     ptr::{SyntaxNodePtr, AstPtr},
+    parsing::{tokenize, Token},
 };
 
 use ra_text_edit::AtomTextEdit;
@@ -59,9 +53,7 @@ impl SourceFile {
     }
 
     pub fn parse(text: &str) -> TreeArc<SourceFile> {
-        let tokens = tokenize(&text);
-        let (green, errors) =
-            parser_impl::parse_with(syntax_node::GreenBuilder::new(), text, &tokens, grammar::root);
+        let (green, errors) = parsing::parse_text(text);
         SourceFile::new(green, errors)
     }
 
@@ -70,7 +62,7 @@ impl SourceFile {
     }
 
     pub fn incremental_reparse(&self, edit: &AtomTextEdit) -> Option<TreeArc<SourceFile>> {
-        reparsing::incremental_reparse(self.syntax(), edit, self.errors())
+        parsing::incremental_reparse(self.syntax(), edit, self.errors())
             .map(|(green_node, errors)| SourceFile::new(green_node, errors))
     }
 

crates/ra_syntax/src/parsing.rs

@@ -0,0 +1,24 @@
+#[macro_use]
+mod token_set;
+mod builder;
+mod lexer;
+mod parser_impl;
+mod parser_api;
+mod reparsing;
+mod grammar;
+
+use crate::{
+    parsing::builder::GreenBuilder,
+    syntax_node::{GreenNode, SyntaxError},
+};
+
+pub use self::lexer::{tokenize, Token};
+
+pub(crate) use self::reparsing::incremental_reparse;
+
+pub(crate) fn parse_text(text: &str) -> (GreenNode, Vec<SyntaxError>) {
+    let tokens = tokenize(&text);
+    let (green, errors) =
+        parser_impl::parse_with(GreenBuilder::new(), text, &tokens, grammar::root);
+    (green, errors)
+}

crates/ra_syntax/src/parsing/builder.rs

@@ -1,5 +1,5 @@
 use crate::{
-    parser_impl::Sink,
+    parsing::parser_impl::Sink,
     syntax_node::{GreenNode, RaTypes, SyntaxError},
     SmolStr, SyntaxKind,
 };

crates/ra_syntax/src/parsing/grammar.rs

@@ -44,9 +44,11 @@ pub(crate) use self::{
     },
 };
 use crate::{
-    parser_api::{CompletedMarker, Marker, Parser},
-    token_set::TokenSet,
     SyntaxKind::{self, *},
+    parsing::{
+        token_set::TokenSet,
+        parser_api::{CompletedMarker, Marker, Parser}
+    },
 };
 
 pub(crate) fn root(p: &mut Parser) {

crates/ra_syntax/src/parsing/lexer/comments.rs

@@ -1,4 +1,4 @@
-use crate::lexer::ptr::Ptr;
+use crate::parsing::lexer::ptr::Ptr;
 
 use crate::SyntaxKind::{self, *};
 

crates/ra_syntax/src/parsing/lexer/numbers.rs

@@ -1,5 +1,7 @@
-use crate::lexer::classes::*;
-use crate::lexer::ptr::Ptr;
+use crate::parsing::lexer::{
+    ptr::Ptr,
+    classes::*,
+};
 
 use crate::SyntaxKind::{self, *};
 

crates/ra_syntax/src/parsing/lexer/strings.rs

@@ -1,6 +1,7 @@
-use crate::SyntaxKind::{self, *};
-
-use crate::lexer::ptr::Ptr;
+use crate::{
+    parsing::lexer::ptr::Ptr,
+    SyntaxKind::{self, *},
+};
 
 pub(crate) fn is_string_literal_start(c: char, c1: Option<char>, c2: Option<char>) -> bool {
     match (c, c1, c2) {

crates/ra_syntax/src/parsing/parser_api.rs

@@ -1,9 +1,11 @@
 use drop_bomb::DropBomb;
 
 use crate::{
-    parser_impl::ParserImpl,
-    token_set::TokenSet,
     SyntaxKind::{self, ERROR},
+    parsing::{
+        token_set::TokenSet,
+        parser_impl::ParserImpl
+    },
 };
 
 /// `Parser` struct provides the low-level API for

crates/ra_syntax/src/parsing/parser_impl.rs

@@ -4,18 +4,16 @@ mod input;
 use std::cell::Cell;
 
 use crate::{
+    SmolStr,
+    syntax_node::syntax_error::{ParseError, SyntaxError},
+    parsing::{
     lexer::Token,
     parser_api::Parser,
     parser_impl::{
         event::{Event, EventProcessor},
         input::{InputPosition, ParserInput},
     },
-    SmolStr,
-    syntax_node::syntax_error::{
-        ParseError,
-        SyntaxError,
-    },
-};
+}};
 
 use crate::SyntaxKind::{self, EOF, TOMBSTONE};
 

crates/ra_syntax/src/parsing/parser_impl/event.rs

@@ -7,9 +7,9 @@
 //! tree builder: the parser produces a stream of events like
 //! `start node`, `finish node`, and `FileBuilder` converts
 //! this stream to a real tree.
+use std::mem;
+
 use crate::{
-    lexer::Token,
-    parser_impl::Sink,
     SmolStr,
     SyntaxKind::{self, *},
     TextRange, TextUnit,
@@ -18,8 +18,11 @@ use crate::{
         SyntaxError,
         SyntaxErrorKind,
     },
+    parsing::{
+        lexer::Token,
+        parser_impl::Sink,
+    },
 };
-use std::mem;
 
 /// `Parser` produces a flat list of `Event`s.
 /// They are converted to a tree-structure in

crates/ra_syntax/src/parsing/parser_impl/input.rs

@@ -1,4 +1,7 @@
-use crate::{lexer::Token, SyntaxKind, SyntaxKind::EOF, TextRange, TextUnit};
+use crate::{
+    SyntaxKind, SyntaxKind::EOF, TextRange, TextUnit,
+    parsing::lexer::Token,
+};
 
 use std::ops::{Add, AddAssign};
 

crates/ra_syntax/src/parsing/reparsing.rs

@@ -1,10 +1,16 @@
-use crate::algo;
-use crate::grammar;
-use crate::lexer::{tokenize, Token};
-use crate::parser_api::Parser;
-use crate::parser_impl;
-use crate::syntax_node::{self, GreenNode, SyntaxError, SyntaxNode};
-use crate::{SyntaxKind::*, TextRange, TextUnit};
+use crate::{
+    SyntaxKind::*, TextRange, TextUnit,
+    algo,
+    syntax_node::{GreenNode, SyntaxError, SyntaxNode},
+    parsing::{
+        grammar,
+        parser_impl,
+        builder::GreenBuilder,
+        parser_api::Parser,
+        lexer::{tokenize, Token},
+    }
+};
+
 use ra_text_edit::AtomTextEdit;
 
 pub(crate) fn incremental_reparse(
@@ -56,7 +62,7 @@ fn reparse_block<'node>(
         return None;
     }
     let (green, new_errors) =
-        parser_impl::parse_with(syntax_node::GreenBuilder::new(), &text, &tokens, reparser);
+        parser_impl::parse_with(GreenBuilder::new(), &text, &tokens, reparser);
     Some((node, green, new_errors))
 }
 

crates/ra_syntax/src/parsing/token_set.rs

@@ -4,19 +4,19 @@ use crate::SyntaxKind;
 pub(crate) struct TokenSet(u128);
 
 impl TokenSet {
-    pub const fn empty() -> TokenSet {
+    pub(crate) const fn empty() -> TokenSet {
         TokenSet(0)
     }
 
-    pub const fn singleton(kind: SyntaxKind) -> TokenSet {
+    pub(crate) const fn singleton(kind: SyntaxKind) -> TokenSet {
         TokenSet(mask(kind))
     }
 
-    pub const fn union(self, other: TokenSet) -> TokenSet {
+    pub(crate) const fn union(self, other: TokenSet) -> TokenSet {
         TokenSet(self.0 | other.0)
     }
 
-    pub fn contains(&self, kind: SyntaxKind) -> bool {
+    pub(crate) fn contains(&self, kind: SyntaxKind) -> bool {
         self.0 & mask(kind) != 0
     }
 }

crates/ra_syntax/src/syntax_node.rs

@@ -1,4 +1,3 @@
-mod builder;
 pub mod syntax_error;
 mod syntax_text;
 
@@ -8,7 +7,6 @@ use self::syntax_text::SyntaxText;
 use crate::{SmolStr, SyntaxKind, TextRange};
 use rowan::{Types, TransparentNewType};
 
-pub(crate) use self::builder::GreenBuilder;
 pub use self::syntax_error::{SyntaxError, SyntaxErrorKind, Location};
 pub use rowan::WalkEvent;