lex: fix range comment lexing and reimplement the File

src/julec/main.jule

@@ -28,7 +28,9 @@ static HELP_MAP: [...][2]str = [
     [CMD_MOD, "Module management"],
 ]
 
-fn print_error_message(msg: str) { outln(msg) }
+fn print_error_message(msg: str) {
+    outln(msg)
+}
 
 // Command: julec help
 fn help(&args: []str) {

src/julec/obj/cxx/object.jule

@@ -85,7 +85,7 @@ impl ObjectCoder {
 
     // Returns location information of token as cstr bytes.
     fn loc_info(self, &t: Token): str {
-        let mut loc = t.file.path()
+        let mut loc = t.file.path
 
         // Normalize path if production compilation enabled.
         if env::PRODUCTION {

src/julec/optimizing/scope.jule

@@ -58,7 +58,7 @@ impl ScopeOptimizer {
             let mut m = (&FnCallExprModel)(d.model)
             if env::PRODUCTION {
                 if !m.func.is_builtin() &&
-                    is_std_package(m.func.decl.token.file.path(), "debug") {
+                    is_std_package(m.func.decl.token.file.path, "debug") {
                     self.set_current_stmt(nil)
                     ret
                 }

std/jule/ast/node.jule

@@ -213,7 +213,9 @@ pub struct LitExpr {
 
 impl LitExpr {
     // Reports whether literal is nil value.
-    pub fn is_nil(self): bool { ret self.value == TokenKind.Nil }
+    pub fn is_nil(self): bool {
+        ret self.value == TokenKind.Nil
+    }
 }
 
 // Unsafe expression.
@@ -307,7 +309,9 @@ pub struct FieldExprPair {
 
 impl FieldExprPair {
     // Reports whether pair targeted field.
-    pub fn is_targeted(self): bool { ret self.field.id != TokenId.Na }
+    pub fn is_targeted(self): bool {
+        ret self.field.id != TokenId.Na
+    }
 }
 
 // Struct literal instiating expression.
@@ -324,7 +328,9 @@ pub struct BraceLit {
 
 impl BraceLit {
     // Reports whether literal is empty ( {} ).
-    pub fn is_empty(self): bool { ret self.exprs.len == 0 }
+    pub fn is_empty(self): bool {
+        ret self.exprs.len == 0
+    }
 }
 
 // Key-value pair expression.
@@ -343,7 +349,9 @@ pub struct SliceExpr {
 
 impl SliceExpr {
     // Reports whether slice is empty.
-    pub fn is_empty(self): bool { ret self.elems.len == 0 }
+    pub fn is_empty(self): bool {
+        ret self.elems.len == 0
+    }
 }
 
 // Indexing expression.
@@ -459,7 +467,9 @@ pub struct FnDecl {
 
 impl FnDecl {
     // Reports whether function is anonymous.
-    pub fn is_anon(self): bool { ret self.ident == Ident.Anon }
+    pub fn is_anon(self): bool {
+        ret self.ident == Ident.Anon
+    }
 }
 
 // Variable declaration.
@@ -508,7 +518,9 @@ pub struct WhileKind {
 
 impl WhileKind {
     // Reports whether kind is while-next iteration.
-    pub fn is_while_next(self): bool { ret self.next != nil }
+    pub fn is_while_next(self): bool {
+        ret self.next != nil
+    }
 }
 
 // Range iteration kind.

std/jule/importer/directive_eval.jule

@@ -23,7 +23,7 @@ impl DirectiveEval {
             kind:   LogKind.Error,
             row:    t.row,
             column: t.column,
-            path:   t.file.path(),
+            path:   t.file.path,
             text:   logf(fmt, args...),
         })
     }

std/jule/importer/importer.jule

@@ -118,7 +118,7 @@ impl Importer for JuleImporter {
 
             let _path = join(path, dirent.name)
             let mut file = new_file_set(_path)
-            file.fill(read_buff(file.path()))
+            file.fill(read_buff(file.path))
             let mut errors = lex(file, LexMode.Standard)
             if errors.len > 0 {
                 ret nil, errors

std/jule/lex/buffer.jule → std/jule/lex/file.jule

@@ -7,37 +7,37 @@ use path for std::fs::path
 
 // Fileset for lexing.
 pub struct File {
-    pub data: []byte
-
-    _path: str
-    mut _tokens: []Token
+    pub path:   str
+    pub data:   []byte
+    pub tokens: []Token
 }
 
 impl File {
     // Reports whether file path is exist and accessible.
     pub fn is_ok(self): bool {
-        Status.of(self._path) else { ret false }
+        _ = Status.of(self.path) else { ret false }
         ret true
     }
 
     // Fill data.
-    pub fn fill(mut self, mut data: []byte) { self.data = data }
-
-    // Returns path.
-    pub fn path(self): str { ret self._path }
+    pub fn fill(mut self, mut data: []byte) {
+        self.data = data
+    }
 
     // Returns directory of file's path.
-    pub fn dir(self): str { ret path::dir(self._path) }
+    pub fn dir(self): str {
+        ret path::dir(self.path)
+    }
 
     // Returns filename.
-    pub fn name(self): str { ret path::base(self._path) }
+    pub fn name(self): str {
+        ret path::base(self.path)
+    }
 
     // Returns self as uintptr.
-    pub fn addr(self): uintptr { ret uintptr(&self) }
-
-    // Returns tokens of file.
-    // Tokens are mutable.
-    pub fn tokens(mut self): []Token { ret self._tokens }
+    pub fn addr(self): uintptr {
+        ret uintptr(&self)
+    }
 
     // Returns line (not include new-line char) by row.
     // Returns empty string if line is not buffer.
@@ -49,7 +49,6 @@ impl File {
             if self.data[i] != '\n' {
                 continue
             }
-
             n++
             if n == row {
                 ret str(self.data[line_start:i])
@@ -63,6 +62,6 @@ impl File {
 // Returns new File points to Jule file.
 pub fn new_file_set(path: str): &File {
     ret &File{
-        _path: path,
+        path: path,
     }
 }

std/jule/lex/lex.jule

@@ -113,7 +113,7 @@ fn make_err(row: int, col: int, &f: &File, fmt: LogMsg, args: ...any): Log {
         kind:   LogKind.Error,
         row:    row,
         column: col,
-        path:   f.path(),
+        path:   f.path,
         text:   logf(fmt, args...),
     }
 }
@@ -562,12 +562,12 @@ impl Lex {
             self.column += 1
             if self.pos+1 < self.file.data.len && r == '*' &&
                 self.file.data[self.pos+1] == '/' {
+                self.column += 2
+                self.pos += 2
                 if self.mode & LexMode.Comment == LexMode.Comment {
                     token.id = TokenId.Comment
                     token.kind = str(self.file.data[start:self.pos])
                 }
-                self.column += 2
-                self.pos += 2
                 ret
             }
         }
@@ -848,6 +848,6 @@ pub fn lex(mut f: &File, mode: LexMode): []Log {
         ret lex.errors
     }
 
-    f._tokens = lex.tokens
+    f.tokens = lex.tokens
     ret nil
 }

std/jule/parser/parser.jule

@@ -51,7 +51,7 @@ fn make_err(row: int, col: int, &f: &File, fmt: LogMsg, args: ...any): Log {
         kind:   LogKind.Error,
         row:    row,
         column: col,
-        path:   f.path(),
+        path:   f.path,
         text:   logf(fmt, args...),
     }
 }
@@ -196,7 +196,7 @@ fn compiler_err(&token: Token, &fmt: LogMsg, args: ...any): Log {
         kind:   LogKind.Error,
         row:    token.row,
         column: token.column,
-        path:   token.file.path(),
+        path:   token.file.path,
         text:   logf(fmt, args...),
         line:   token.file.get_row(token.row),
     }
@@ -1929,13 +1929,12 @@ impl Parser {
             file: f,
         }
 
-        let mut tokens = f.tokens()
-        self.check_ranges(tokens)
+        self.check_ranges(f.tokens)
         if self.errors.len > 0 {
             ret
         }
 
-        let mut stmts = split_stmts(tokens)
+        let mut stmts = split_stmts(f.tokens)
 
         // Get top directives.
         let mut i = 0

std/jule/sema/sema.jule

@@ -47,7 +47,7 @@ fn compiler_err(&token: Token, line: bool, fmt: LogMsg, args: ...any): Log {
         kind:   LogKind.Error,
         row:    token.row,
         column: token.column,
-        path:   token.file.path(),
+        path:   token.file.path,
         text:   logf(fmt, args...),
     }
     if line {
@@ -2305,7 +2305,7 @@ impl Sema {
         }
 
         let s = sptr.elem.strct()
-        if s == nil || !is_std_package(s.decl.token.file.path(), "testing") {
+        if s == nil || !is_std_package(s.decl.token.file.path, "testing") {
             self.push_err(f.decl.token, LogMsg.WrongTestFnDecl)
             self.push_suggestion(LogMsg.UseExpectedTestFnDecl)
             ret