Rename PreorderVisitor to SourceOrderVisitor (#11798)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

crates/ruff_python_formatter/src/comments/mod.rs

@@ -406,11 +406,11 @@ impl<'a> Comments<'a> {
     /// normally if `node` is the first or last node of a suppression range.
     #[cfg(debug_assertions)]
     pub(crate) fn mark_verbatim_node_comments_formatted(&self, node: AnyNodeRef) {
-        use ruff_python_ast::visitor::preorder::{PreorderVisitor, TraversalSignal};
+        use ruff_python_ast::visitor::source_order::{SourceOrderVisitor, TraversalSignal};
 
         struct MarkVerbatimCommentsAsFormattedVisitor<'a>(&'a Comments<'a>);
 
-        impl<'a> PreorderVisitor<'a> for MarkVerbatimCommentsAsFormattedVisitor<'a> {
+        impl<'a> SourceOrderVisitor<'a> for MarkVerbatimCommentsAsFormattedVisitor<'a> {
             fn enter_node(&mut self, node: AnyNodeRef<'a>) -> TraversalSignal {
                 for comment in self.0.leading_dangling_trailing(node) {
                     comment.mark_formatted();

crates/ruff_python_formatter/src/comments/visitor.rs

@@ -7,7 +7,7 @@ use ruff_python_ast::{Mod, Stmt};
 // The interface is designed to only export the members relevant for iterating nodes in
 // pre-order.
 #[allow(clippy::wildcard_imports)]
-use ruff_python_ast::visitor::preorder::*;
+use ruff_python_ast::visitor::source_order::*;
 use ruff_python_trivia::{CommentLinePosition, CommentRanges};
 use ruff_source_file::Locator;
 use ruff_text_size::{Ranged, TextRange, TextSize};
@@ -70,7 +70,7 @@ impl<'a, 'builder> CommentsVisitor<'a, 'builder> {
     }
 }
 
-impl<'ast> PreorderVisitor<'ast> for CommentsVisitor<'ast, '_> {
+impl<'ast> SourceOrderVisitor<'ast> for CommentsVisitor<'ast, '_> {
     fn enter_node(&mut self, node: AnyNodeRef<'ast>) -> TraversalSignal {
         let node_range = node.range();
 

crates/ruff_python_formatter/src/expression/mod.rs

@@ -6,7 +6,7 @@ use ruff_formatter::{
 };
 use ruff_python_ast as ast;
 use ruff_python_ast::parenthesize::parentheses_iterator;
-use ruff_python_ast::visitor::preorder::{walk_expr, PreorderVisitor};
+use ruff_python_ast::visitor::source_order::{walk_expr, SourceOrderVisitor};
 use ruff_python_ast::{AnyNodeRef, Expr, ExpressionRef, Operator};
 use ruff_python_trivia::CommentRanges;
 use ruff_text_size::Ranged;
@@ -806,7 +806,7 @@ impl<'input> CanOmitOptionalParenthesesVisitor<'input> {
     }
 }
 
-impl<'input> PreorderVisitor<'input> for CanOmitOptionalParenthesesVisitor<'input> {
+impl<'input> SourceOrderVisitor<'input> for CanOmitOptionalParenthesesVisitor<'input> {
     fn visit_expr(&mut self, expr: &'input Expr) {
         self.last = Some(expr);
 

crates/ruff_python_formatter/src/range.rs

@@ -4,7 +4,7 @@ use ruff_formatter::printer::SourceMapGeneration;
 use ruff_formatter::{
     format, FormatContext, FormatError, FormatOptions, IndentStyle, PrintedRange, SourceCode,
 };
-use ruff_python_ast::visitor::preorder::{walk_body, PreorderVisitor, TraversalSignal};
+use ruff_python_ast::visitor::source_order::{walk_body, SourceOrderVisitor, TraversalSignal};
 use ruff_python_ast::{AnyNodeRef, Stmt, StmtMatch, StmtTry};
 use ruff_python_parser::{parse, AsMode};
 use ruff_python_trivia::{indentation_at_offset, BackwardsTokenizer, SimpleToken, SimpleTokenKind};
@@ -181,7 +181,7 @@ impl<'a, 'ast> FindEnclosingNode<'a, 'ast> {
     }
 }
 
-impl<'ast> PreorderVisitor<'ast> for FindEnclosingNode<'_, 'ast> {
+impl<'ast> SourceOrderVisitor<'ast> for FindEnclosingNode<'_, 'ast> {
     fn enter_node(&mut self, node: AnyNodeRef<'ast>) -> TraversalSignal {
         if !(is_logical_line(node) || node.is_mod_module()) {
             return TraversalSignal::Skip;
@@ -336,7 +336,7 @@ struct NarrowRange<'a> {
     level: usize,
 }
 
-impl PreorderVisitor<'_> for NarrowRange<'_> {
+impl SourceOrderVisitor<'_> for NarrowRange<'_> {
     fn enter_node(&mut self, node: AnyNodeRef<'_>) -> TraversalSignal {
         if !(is_logical_line(node) || node.is_mod_module()) {
             return TraversalSignal::Skip;