Replace row/column based Location with byte-offsets. (#3931)

crates/ruff_python_semantic/Cargo.toml

@@ -10,6 +10,7 @@ rust-version = { workspace = true }
 [dependencies]
 ruff_python_ast = { path = "../ruff_python_ast" }
 ruff_python_stdlib = { path = "../ruff_python_stdlib" }
+ruff_text_size = { workspace = true }
 
 bitflags = { workspace = true }
 is-macro = { workspace = true }

crates/ruff_python_semantic/src/binding.rs

@@ -2,37 +2,38 @@ use std::num::TryFromIntError;
 use std::ops::{Deref, Index, IndexMut};
 
 use bitflags::bitflags;
+use ruff_text_size::TextRange;
 use rustpython_parser::ast::Stmt;
 
-use ruff_python_ast::types::{Range, RefEquality};
+use ruff_python_ast::types::RefEquality;
 
 use crate::scope::ScopeId;
 
 #[derive(Debug, Clone)]
 pub struct Binding<'a> {
     pub kind: BindingKind<'a>,
-    pub range: Range,
+    pub range: TextRange,
     /// The context in which the binding was created.
     pub context: ExecutionContext,
     /// The statement in which the [`Binding`] was defined.
     pub source: Option<RefEquality<'a, Stmt>>,
     /// Tuple of (scope index, range) indicating the scope and range at which
     /// the binding was last used in a runtime context.
-    pub runtime_usage: Option<(ScopeId, Range)>,
+    pub runtime_usage: Option<(ScopeId, TextRange)>,
     /// Tuple of (scope index, range) indicating the scope and range at which
     /// the binding was last used in a typing-time context.
-    pub typing_usage: Option<(ScopeId, Range)>,
+    pub typing_usage: Option<(ScopeId, TextRange)>,
     /// Tuple of (scope index, range) indicating the scope and range at which
     /// the binding was last used in a synthetic context. This is used for
     /// (e.g.) `__future__` imports, explicit re-exports, and other bindings
     /// that should be considered used even if they're never referenced.
-    pub synthetic_usage: Option<(ScopeId, Range)>,
+    pub synthetic_usage: Option<(ScopeId, TextRange)>,
     /// The exceptions that were handled when the binding was defined.
     pub exceptions: Exceptions,
 }
 
 impl<'a> Binding<'a> {
-    pub fn mark_used(&mut self, scope: ScopeId, range: Range, context: ExecutionContext) {
+    pub fn mark_used(&mut self, scope: ScopeId, range: TextRange, context: ExecutionContext) {
         match context {
             ExecutionContext::Runtime => self.runtime_usage = Some((scope, range)),
             ExecutionContext::Typing => self.typing_usage = Some((scope, range)),