rust-tauri-cli-ios-dev — human mapping

Performance fixture: real-world Rust file pair from tauri-apps/tauri (crates/tauri-cli/src/mobile/ios/dev.rs, commit 0aa48fb9e4b9d7b5bf3522000a76ebc1836394ed) that takes diff_code roughly 13 seconds on a combined AST of 5162 nodes (~10.3KB per file) - the single slowest pair found across the entire benchmark sample. Captured via research/diff_pairs_benchmark_rust.csv; the top priority candidate for profiling diff_code's worst-case behavior.

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 1–164 unchanged (164 lines)
  let app = get_app(MobileTarget::Ios, tauri_config_, &interface);
  let (config, _metadata) = get_config(
    &app,
    tauri_config_,
    dev_options.features.as_ref(),
    &Default::default(),
  );
172
  (interface, config)
};
175
let tauri_path = tauri_dir();
set_current_dir(tauri_path).with_context(|| "failed to change current working directory")?;
…lines 178–333 unchanged (156 lines)

After…lines 1–164 unchanged (164 lines)
  let app = get_app(MobileTarget::Ios, tauri_config_, &interface);
  let (config, _metadata) = get_config(
    &app,
    tauri_config_,
    dev_options.features.as_ref(),
    &Default::default(),
  )?;
172
  (interface, config)
};
175
let tauri_path = tauri_dir();
set_current_dir(tauri_path).with_context(|| "failed to change current working directory")?;
…lines 178–333 unchanged (156 lines)

Before…lines 1–164 unchanged (164 lines)
  let app = get_app(MobileTarget::Ios, tauri_config_, &interface);
  let (config, _metadata) = get_config(
    &app,
    tauri_config_,
    dev_options.features.as_ref(),
    &Default::default(),
  );
172
  (interface, config)
};
175
let tauri_path = tauri_dir();
set_current_dir(tauri_path).with_context(|| "failed to change current working directory")?;
…lines 178–333 unchanged (156 lines)

After…lines 1–164 unchanged (164 lines)
  let app = get_app(MobileTarget::Ios, tauri_config_, &interface);
  let (config, _metadata) = get_config(
    &app,
    tauri_config_,
    dev_options.features.as_ref(),
    &Default::default(),
  )?;
172
  (interface, config)
};
175
let tauri_path = tauri_dir();
set_current_dir(tauri_path).with_context(|| "failed to change current working directory")?;
…lines 178–333 unchanged (156 lines)

Before

source_file

line_comment

// "//"

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// "//"

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// "//"

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use_declaration

use "use"

scoped_use_list

identifier "clap"

:: "::"

use_list

{ "{"

identifier "ArgAction"

, ","

identifier "Parser"

} "}"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "anyhow"

:: "::"

identifier "Context"

; ";"

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use_declaration

use "use"

scoped_identifier

identifier "std"

:: "::"

identifier "env"

:: "::"

identifier "set_current_dir"

; ";"

const_item

const "const"

identifier "PHYSICAL_IPHONE_DEV_WARNING"

: ":"

reference_type

& "&"

primitive_type "str"

= "="

string_literal

" "\""

string_content "To develop on physical phones you need the `--host` option ("...

" "\""

; ";"

attribute_item

# "#"

[ "["

attribute

identifier "derive"

token_tree

( "("

identifier "Debug"

, ","

identifier "Clone"

, ","

identifier "Parser"

) ")"

] "]"

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function_item

fn "fn"

identifier "run_command"

parameters

( "("

parameter

identifier "options"

: ":"

type_identifier "Options"

, ","

parameter

identifier "noise_level"

: ":"

type_identifier "NoiseLevel"

) ")"

-> "->"

generic_type

type_identifier "Result"

type_arguments

< "<"

unit_type

( "("

) ")"

> ">"

block

{ "{"

let_declaration

let "let"

identifier "env"

= "="

try_expression

call_expression

identifier "env"

arguments

( "("

) ")"

? "?"

; ";"

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let_declaration

let "let"

tuple_pattern

( "("

identifier "interface"

, ","

identifier "config"

) ")"

= "="

block

{ "{"

let_declaration

let "let"

identifier "tauri_config_guard"

= "="

call_expression

field_expression

call_expression

field_expression

identifier "tauri_config"

. "."

field_identifier "lock"

arguments

( "("

) ")"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

; ";"

let_declaration

let "let"

identifier "tauri_config_"

= "="

call_expression

field_expression

call_expression

field_expression

identifier "tauri_config_guard"

. "."

field_identifier "as_ref"

arguments

( "("

) ")"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

; ";"

let_declaration (+23 nodes collapsed)

let_declaration

let "let"

identifier "app"

= "="

call_expression

identifier "get_app"

arguments

( "("

scoped_identifier

identifier "MobileTarget"

:: "::"

identifier "Ios"

, ","

identifier "tauri_config_"

, ","

reference_expression

& "&"

identifier "interface"

) ")"

; ";"

let_declaration

let "let"

tuple_pattern

( "("

identifier "config"

, ","

identifier "_metadata"

) ")"

= "="

call_expression (+34 nodes collapsed)

; ";"

tuple_expression

( "("

identifier "interface"

, ","

identifier "config"

) ")"

} "}"

; ";"

let_declaration

let "let"

identifier "tauri_path"

= "="

call_expression

identifier "tauri_dir"

arguments

( "("

) ")"

; ";"

expression_statement (+25 nodes collapsed)

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identifier "merged_info_plist"

. "."

field_identifier "to_file_xml"

arguments

( "("

reference_expression

& "&"

identifier "info_plist_path"

) ")"

? "?"

; ";"

let_declaration

let "let"

mutable_specifier "mut"

identifier "pbxproj"

= "="

try_expression

call_expression

identifier "load_pbxproj"

arguments

( "("

reference_expression

& "&"

identifier "config"

) ")"

? "?"

; ";"

line_comment

// "//"

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} "}"

attribute_item

# "#"

[ "["

attribute

identifier "allow"

token_tree

( "("

identifier "clippy"

:: "::"

identifier "too_many_arguments"

) ")"

] "]"

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function_item (+127 nodes collapsed)

After

source_file

line_comment

// "//"

line_comment

// "//"

line_comment

// "//"

use_declaration (+33 nodes collapsed)

use_declaration (+84 nodes collapsed)

use_declaration

use "use"

scoped_use_list

identifier "clap"

:: "::"

use_list

{ "{"

identifier "ArgAction"

, ","

identifier "Parser"

} "}"

; ";"

use_declaration

use "use"

scoped_identifier

identifier "anyhow"

:: "::"

identifier "Context"

; ";"

use_declaration (+49 nodes collapsed)

use_declaration

use "use"

scoped_identifier

identifier "std"

:: "::"

identifier "env"

:: "::"

identifier "set_current_dir"

; ";"

const_item

const "const"

identifier "PHYSICAL_IPHONE_DEV_WARNING"

: ":"

reference_type

& "&"

primitive_type "str"

= "="

string_literal

" "\""

string_content "To develop on physical phones you need the `--host` option ("...

" "\""

; ";"

attribute_item

# "#"

[ "["

attribute

identifier "derive"

token_tree

( "("

identifier "Debug"

, ","

identifier "Clone"

, ","

identifier "Parser"

) ")"

] "]"

attribute_item (+22 nodes collapsed)

struct_item (+428 nodes collapsed)

impl_item (+137 nodes collapsed)

function_item (+86 nodes collapsed)

function_item

fn "fn"

identifier "run_command"

parameters

( "("

parameter

identifier "options"

: ":"

type_identifier "Options"

, ","

parameter

identifier "noise_level"

: ":"

type_identifier "NoiseLevel"

) ")"

-> "->"

generic_type

type_identifier "Result"

type_arguments

< "<"

unit_type

( "("

) ")"

> ">"

block

{ "{"

let_declaration

let "let"

identifier "env"

= "="

try_expression

call_expression

identifier "env"

arguments

( "("

) ")"

? "?"

; ";"

let_declaration (+88 nodes collapsed)

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expression_statement (+21 nodes collapsed)

let_declaration (+73 nodes collapsed)

let_declaration

let "let"

tuple_pattern

( "("

identifier "interface"

, ","

identifier "config"

) ")"

= "="

block

{ "{"

let_declaration

let "let"

identifier "tauri_config_guard"

= "="

call_expression

field_expression

call_expression

field_expression

identifier "tauri_config"

. "."

field_identifier "lock"

arguments

( "("

) ")"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

; ";"

let_declaration

let "let"

identifier "tauri_config_"

= "="

call_expression

field_expression

call_expression

field_expression

identifier "tauri_config_guard"

. "."

field_identifier "as_ref"

arguments

( "("

) ")"

. "."

field_identifier "unwrap"

arguments

( "("

) ")"

; ";"

let_declaration (+23 nodes collapsed)

let_declaration

let "let"

identifier "app"

= "="

call_expression

identifier "get_app"

arguments

( "("

scoped_identifier

identifier "MobileTarget"

:: "::"

identifier "Ios"

, ","

identifier "tauri_config_"

, ","

reference_expression

& "&"

identifier "interface"

) ")"

; ";"

let_declaration

let "let"

tuple_pattern

( "("

identifier "config"

, ","

identifier "_metadata"

) ")"

= "="

try_expression

call_expression (+34 nodes collapsed)

? "?"

; ";"

tuple_expression

( "("

identifier "interface"

, ","

identifier "config"

) ")"

} "}"

; ";"

let_declaration

let "let"

identifier "tauri_path"

= "="

call_expression

identifier "tauri_dir"

arguments

( "("

) ")"

; ";"

expression_statement (+25 nodes collapsed)

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let_declaration (+39 nodes collapsed)

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expression_statement

try_expression

call_expression

field_expression

identifier "merged_info_plist"

. "."

field_identifier "to_file_xml"

arguments

( "("

reference_expression

& "&"

identifier "info_plist_path"

) ")"

? "?"

; ";"

let_declaration

let "let"

mutable_specifier "mut"

identifier "pbxproj"

= "="

try_expression

call_expression

identifier "load_pbxproj"

arguments

( "("

reference_expression

& "&"

identifier "config"

) ")"

? "?"

; ";"

line_comment

// "//"

expression_statement (+67 nodes collapsed)

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call_expression (+23 nodes collapsed)

} "}"

attribute_item

# "#"

[ "["

attribute

identifier "allow"

token_tree

( "("

identifier "clippy"

:: "::"

identifier "too_many_arguments"

) ")"

] "]"

function_item (+721 nodes collapsed)

function_item (+127 nodes collapsed)