rust-zed-git-panel-settings

Performance fixture: real-world Rust file pair from zed-industries/zed (crates/git_ui/src/git_panel_settings.rs, commit 00bee4515e2c69fbcedcb7032420ce9dafce6aa7) that takes diff_code roughly 2.4 seconds despite a combined AST size of only 1232 nodes. Captured via research/diff_pairs_benchmark_rust.csv; useful for regression-testing and profiling diff_code's worst-case behavior on medium-sized real-world inputs.

A painting is a person's account of this edit as text, recorded independently of the node mapping - a rendering often has several equally defensible answers where the mapping has one. Deletions and insertions carry no position on the opposite side in a painting, so that panel draws no caret for them.

Before…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
32}
33
34impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
      // `.unwrap_or(EditorSettings::get_global(cx).scrollbar.show)`.
…lines 39–62 unchanged (24 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
      }
  }
71}
72

After…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
  pub starts_open: bool,
33}
34
35impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
…lines 39–63 unchanged (25 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
          starts_open: git_panel.starts_open.unwrap(),
      }
  }
73}
74

Before…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
32}
33
34impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
      // `.unwrap_or(EditorSettings::get_global(cx).scrollbar.show)`.
…lines 39–62 unchanged (24 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
      }
  }
71}
72

After…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
  pub starts_open: bool,
33}
34
35impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
…lines 39–63 unchanged (25 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
          starts_open: git_panel.starts_open.unwrap(),
      }
  }
73}
74

Before…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
32}
33
34impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
      // `.unwrap_or(EditorSettings::get_global(cx).scrollbar.show)`.
…lines 39–62 unchanged (24 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
      }
  }
71}
72

After…lines 1–25 unchanged (25 lines)
  pub fallback_branch_name: String,
  pub sort_by_path: bool,
  pub collapse_untracked_diff: bool,
  pub tree_view: bool,
  pub diff_stats: bool,
  pub show_count_badge: bool,
  pub starts_open: bool,
33}
34
35impl ScrollbarVisibility for GitPanelSettings {
  fn visibility(&self, cx: &ui::App) -> ShowScrollbar {
      // TODO: This PR should have defined Editor's `scrollbar.axis`
      // as an Option<ScrollbarAxis>, not a ScrollbarAxes as it would allow you to
…lines 39–63 unchanged (25 lines)
          fallback_branch_name: git_panel.fallback_branch_name.unwrap(),
          sort_by_path: git_panel.sort_by_path.unwrap(),
          collapse_untracked_diff: git_panel.collapse_untracked_diff.unwrap(),
          tree_view: git_panel.tree_view.unwrap(),
          diff_stats: git_panel.diff_stats.unwrap(),
          show_count_badge: git_panel.show_count_badge.unwrap(),
          starts_open: git_panel.starts_open.unwrap(),
      }
  }
73}
74

Before

source_file

use_declaration

use "use"

scoped_identifier

identifier "editor"

:: "::"

identifier "EditorSettings"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "gpui"

:: "::"

identifier "Pixels"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "schemars"

:: "::"

identifier "JsonSchema"

; ";"

use_declaration

use "use"

scoped_use_list

identifier "serde"

:: "::"

use_list

{ "{"

identifier "Deserialize"

, ","

identifier "Serialize"

} "}"

; ";"

use_declaration

use "use"

scoped_use_list

identifier "settings"

:: "::"

use_list

{ "{"

identifier "RegisterSetting"

, ","

identifier "Settings"

, ","

identifier "StatusStyle"

} "}"

; ";"

use_declaration (+21 nodes collapsed)

use_declaration

use "use"

scoped_identifier

identifier "workspace"

:: "::"

identifier "dock"

:: "::"

identifier "DockPosition"

; ";"

attribute_item (+24 nodes collapsed)

struct_item

visibility_modifier

pub "pub"

struct "struct"

type_identifier "ScrollbarSettings"

field_declaration_list

{ "{"

field_declaration

visibility_modifier

pub "pub"

field_identifier "show"

: ":"

generic_type

type_identifier "Option"

type_arguments

< "<"

type_identifier "ShowScrollbar"

> ">"

, ","

} "}"

attribute_item

# "#"

[ "["

attribute

identifier "derive"

token_tree

( "("

identifier "Debug"

, ","

identifier "Clone"

, ","

identifier "PartialEq"

, ","

identifier "RegisterSetting"

) ")"

] "]"

struct_item

visibility_modifier

pub "pub"

struct "struct"

type_identifier "GitPanelSettings"

field_declaration_list

{ "{"

field_declaration

visibility_modifier

pub "pub"

field_identifier "button"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "dock"

: ":"

type_identifier "DockPosition"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "default_width"

: ":"

type_identifier "Pixels"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "status_style"

: ":"

type_identifier "StatusStyle"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "file_icons"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "folder_icons"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "scrollbar"

: ":"

type_identifier "ScrollbarSettings"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "fallback_branch_name"

: ":"

type_identifier "String"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "sort_by_path"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "collapse_untracked_diff"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "tree_view"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "diff_stats"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "show_count_badge"

: ":"

primitive_type "bool"

, ","

} "}"

impl_item (+81 nodes collapsed)

impl_item

impl "impl"

type_identifier "Settings"

for "for"

type_identifier "GitPanelSettings"

declaration_list

{ "{"

function_item

fn "fn"

identifier "from_settings"

parameters

( "("

parameter

identifier "content"

: ":"

reference_type

& "&"

scoped_type_identifier

identifier "settings"

:: "::"

type_identifier "SettingsContent"

) ")"

-> "->"

type_identifier "Self"

block

{ "{"

let_declaration (+23 nodes collapsed)

struct_expression

type_identifier "Self"

field_initializer_list

{ "{"

field_initializer

field_identifier "button"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "button"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer (+21 nodes collapsed)

, ","

field_initializer

field_identifier "default_width"

: ":"

call_expression

identifier "px"

arguments

( "("

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "default_width"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "status_style"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "status_style"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "file_icons"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "file_icons"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "folder_icons"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "folder_icons"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer (+37 nodes collapsed)

, ","

field_initializer

field_identifier "fallback_branch_name"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "fallback_branch_name"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "sort_by_path"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "sort_by_path"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "collapse_untracked_diff"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "collapse_untracked_diff"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "tree_view"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "tree_view"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "diff_stats"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "diff_stats"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "show_count_badge"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "show_count_badge"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

} "}"

After

source_file

use_declaration

use "use"

scoped_identifier

identifier "editor"

:: "::"

identifier "EditorSettings"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "gpui"

:: "::"

identifier "Pixels"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "schemars"

:: "::"

identifier "JsonSchema"

; ";"

use_declaration

use "use"

scoped_use_list

identifier "serde"

:: "::"

use_list

{ "{"

identifier "Deserialize"

, ","

identifier "Serialize"

} "}"

; ";"

use_declaration

use "use"

scoped_use_list

identifier "settings"

:: "::"

use_list

{ "{"

identifier "RegisterSetting"

, ","

identifier "Settings"

, ","

identifier "StatusStyle"

} "}"

; ";"

use_declaration (+21 nodes collapsed)

use_declaration

use "use"

scoped_identifier

identifier "workspace"

:: "::"

identifier "dock"

:: "::"

identifier "DockPosition"

; ";"

attribute_item (+24 nodes collapsed)

struct_item

visibility_modifier

pub "pub"

struct "struct"

type_identifier "ScrollbarSettings"

field_declaration_list

{ "{"

field_declaration

visibility_modifier

pub "pub"

field_identifier "show"

: ":"

generic_type

type_identifier "Option"

type_arguments

< "<"

type_identifier "ShowScrollbar"

> ">"

, ","

} "}"

attribute_item

# "#"

[ "["

attribute

identifier "derive"

token_tree

( "("

identifier "Debug"

, ","

identifier "Clone"

, ","

identifier "PartialEq"

, ","

identifier "RegisterSetting"

) ")"

] "]"

struct_item

visibility_modifier

pub "pub"

struct "struct"

type_identifier "GitPanelSettings"

field_declaration_list

{ "{"

field_declaration

visibility_modifier

pub "pub"

field_identifier "button"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "dock"

: ":"

type_identifier "DockPosition"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "default_width"

: ":"

type_identifier "Pixels"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "status_style"

: ":"

type_identifier "StatusStyle"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "file_icons"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "folder_icons"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "scrollbar"

: ":"

type_identifier "ScrollbarSettings"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "fallback_branch_name"

: ":"

type_identifier "String"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "sort_by_path"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "collapse_untracked_diff"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "tree_view"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "diff_stats"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "show_count_badge"

: ":"

primitive_type "bool"

, ","

field_declaration

visibility_modifier

pub "pub"

field_identifier "starts_open"

: ":"

primitive_type "bool"

, ","

} "}"

impl_item (+81 nodes collapsed)

impl_item

impl "impl"

type_identifier "Settings"

for "for"

type_identifier "GitPanelSettings"

declaration_list

{ "{"

function_item

fn "fn"

identifier "from_settings"

parameters

( "("

parameter

identifier "content"

: ":"

reference_type

& "&"

scoped_type_identifier

identifier "settings"

:: "::"

type_identifier "SettingsContent"

) ")"

-> "->"

type_identifier "Self"

block

{ "{"

let_declaration (+23 nodes collapsed)

struct_expression

type_identifier "Self"

field_initializer_list

{ "{"

field_initializer

field_identifier "button"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "button"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer (+21 nodes collapsed)

, ","

field_initializer

field_identifier "default_width"

: ":"

call_expression

identifier "px"

arguments

( "("

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "default_width"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "status_style"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "status_style"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "file_icons"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "file_icons"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "folder_icons"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "folder_icons"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer (+37 nodes collapsed)

, ","

field_initializer

field_identifier "fallback_branch_name"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "fallback_branch_name"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "sort_by_path"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "sort_by_path"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "collapse_untracked_diff"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "collapse_untracked_diff"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "tree_view"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "tree_view"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "diff_stats"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "diff_stats"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "show_count_badge"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "show_count_badge"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

field_initializer

field_identifier "starts_open"

: ":"

call_expression

field_expression

identifier "git_panel"

. "."

field_identifier "starts_open"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

, ","

} "}"