1394 lines
39 KiB
Rust
1394 lines
39 KiB
Rust
use crate::{MatchFinder, SsrRule};
|
|
use expect_test::{expect, Expect};
|
|
use ide_db::base_db::{salsa::Durability, FileId, FilePosition, FileRange, SourceDatabaseExt};
|
|
use rustc_hash::FxHashSet;
|
|
use std::sync::Arc;
|
|
use test_utils::RangeOrOffset;
|
|
|
|
fn parse_error_text(query: &str) -> String {
|
|
format!("{}", query.parse::<SsrRule>().unwrap_err())
|
|
}
|
|
|
|
#[test]
|
|
fn parser_empty_query() {
|
|
assert_eq!(parse_error_text(""), "Parse error: Cannot find delimiter `==>>`");
|
|
}
|
|
|
|
#[test]
|
|
fn parser_no_delimiter() {
|
|
assert_eq!(parse_error_text("foo()"), "Parse error: Cannot find delimiter `==>>`");
|
|
}
|
|
|
|
#[test]
|
|
fn parser_two_delimiters() {
|
|
assert_eq!(
|
|
parse_error_text("foo() ==>> a ==>> b "),
|
|
"Parse error: More than one delimiter found"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn parser_repeated_name() {
|
|
assert_eq!(
|
|
parse_error_text("foo($a, $a) ==>>"),
|
|
"Parse error: Placeholder `$a` repeats more than once"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn parser_invalid_pattern() {
|
|
assert_eq!(
|
|
parse_error_text(" ==>> ()"),
|
|
"Parse error: Not a valid Rust expression, type, item, path or pattern"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn parser_invalid_template() {
|
|
assert_eq!(
|
|
parse_error_text("() ==>> )"),
|
|
"Parse error: Not a valid Rust expression, type, item, path or pattern"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn parser_undefined_placeholder_in_replacement() {
|
|
assert_eq!(
|
|
parse_error_text("42 ==>> $a"),
|
|
"Parse error: Replacement contains undefined placeholders: $a"
|
|
);
|
|
}
|
|
|
|
/// `code` may optionally contain a cursor marker `$0`. If it doesn't, then the position will be
|
|
/// the start of the file. If there's a second cursor marker, then we'll return a single range.
|
|
pub(crate) fn single_file(code: &str) -> (ide_db::RootDatabase, FilePosition, Vec<FileRange>) {
|
|
use ide_db::base_db::fixture::WithFixture;
|
|
use ide_db::symbol_index::SymbolsDatabase;
|
|
let (mut db, file_id, range_or_offset) = if code.contains(test_utils::CURSOR_MARKER) {
|
|
ide_db::RootDatabase::with_range_or_offset(code)
|
|
} else {
|
|
let (db, file_id) = ide_db::RootDatabase::with_single_file(code);
|
|
(db, file_id, RangeOrOffset::Offset(0.into()))
|
|
};
|
|
let selections;
|
|
let position;
|
|
match range_or_offset {
|
|
RangeOrOffset::Range(range) => {
|
|
position = FilePosition { file_id, offset: range.start() };
|
|
selections = vec![FileRange { file_id, range }];
|
|
}
|
|
RangeOrOffset::Offset(offset) => {
|
|
position = FilePosition { file_id, offset };
|
|
selections = vec![];
|
|
}
|
|
}
|
|
let mut local_roots = FxHashSet::default();
|
|
local_roots.insert(ide_db::base_db::fixture::WORKSPACE);
|
|
db.set_local_roots_with_durability(Arc::new(local_roots), Durability::HIGH);
|
|
(db, position, selections)
|
|
}
|
|
|
|
fn assert_ssr_transform(rule: &str, input: &str, expected: Expect) {
|
|
assert_ssr_transforms(&[rule], input, expected);
|
|
}
|
|
|
|
fn assert_ssr_transforms(rules: &[&str], input: &str, expected: Expect) {
|
|
let (db, position, selections) = single_file(input);
|
|
let mut match_finder = MatchFinder::in_context(&db, position, selections);
|
|
for rule in rules {
|
|
let rule: SsrRule = rule.parse().unwrap();
|
|
match_finder.add_rule(rule).unwrap();
|
|
}
|
|
let edits = match_finder.edits();
|
|
if edits.is_empty() {
|
|
panic!("No edits were made");
|
|
}
|
|
// Note, db.file_text is not necessarily the same as `input`, since fixture parsing alters
|
|
// stuff.
|
|
let mut actual = db.file_text(position.file_id).to_string();
|
|
edits[&position.file_id].apply(&mut actual);
|
|
expected.assert_eq(&actual);
|
|
}
|
|
|
|
fn print_match_debug_info(match_finder: &MatchFinder, file_id: FileId, snippet: &str) {
|
|
let debug_info = match_finder.debug_where_text_equal(file_id, snippet);
|
|
println!(
|
|
"Match debug info: {} nodes had text exactly equal to '{}'",
|
|
debug_info.len(),
|
|
snippet
|
|
);
|
|
for (index, d) in debug_info.iter().enumerate() {
|
|
println!("Node #{}\n{:#?}\n", index, d);
|
|
}
|
|
}
|
|
|
|
fn assert_matches(pattern: &str, code: &str, expected: &[&str]) {
|
|
let (db, position, selections) = single_file(code);
|
|
let mut match_finder = MatchFinder::in_context(&db, position, selections);
|
|
match_finder.add_search_pattern(pattern.parse().unwrap()).unwrap();
|
|
let matched_strings: Vec<String> =
|
|
match_finder.matches().flattened().matches.iter().map(|m| m.matched_text()).collect();
|
|
if matched_strings != expected && !expected.is_empty() {
|
|
print_match_debug_info(&match_finder, position.file_id, expected[0]);
|
|
}
|
|
assert_eq!(matched_strings, expected);
|
|
}
|
|
|
|
fn assert_no_match(pattern: &str, code: &str) {
|
|
let (db, position, selections) = single_file(code);
|
|
let mut match_finder = MatchFinder::in_context(&db, position, selections);
|
|
match_finder.add_search_pattern(pattern.parse().unwrap()).unwrap();
|
|
let matches = match_finder.matches().flattened().matches;
|
|
if !matches.is_empty() {
|
|
print_match_debug_info(&match_finder, position.file_id, &matches[0].matched_text());
|
|
panic!("Got {} matches when we expected none: {:#?}", matches.len(), matches);
|
|
}
|
|
}
|
|
|
|
fn assert_match_failure_reason(pattern: &str, code: &str, snippet: &str, expected_reason: &str) {
|
|
let (db, position, selections) = single_file(code);
|
|
let mut match_finder = MatchFinder::in_context(&db, position, selections);
|
|
match_finder.add_search_pattern(pattern.parse().unwrap()).unwrap();
|
|
let mut reasons = Vec::new();
|
|
for d in match_finder.debug_where_text_equal(position.file_id, snippet) {
|
|
if let Some(reason) = d.match_failure_reason() {
|
|
reasons.push(reason.to_owned());
|
|
}
|
|
}
|
|
assert_eq!(reasons, vec![expected_reason]);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_let_stmt_in_macro_match() {
|
|
assert_matches(
|
|
"let a = 0",
|
|
r#"
|
|
macro_rules! m1 { ($a:stmt) => {$a}; }
|
|
fn f() {m1!{ let a = 0 };}"#,
|
|
// FIXME: Whitespace is not part of the matched block
|
|
&["leta=0"],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_let_stmt_in_fn_match() {
|
|
assert_matches("let $a = 10;", "fn main() { let x = 10; x }", &["let x = 10;"]);
|
|
assert_matches("let $a = $b;", "fn main() { let x = 10; x }", &["let x = 10;"]);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_block_expr_match() {
|
|
assert_matches("{ let $a = $b; }", "fn main() { let x = 10; }", &["{ let x = 10; }"]);
|
|
assert_matches("{ let $a = $b; $c }", "fn main() { let x = 10; x }", &["{ let x = 10; x }"]);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_let_stmt_replace() {
|
|
// Pattern and template with trailing semicolon
|
|
assert_ssr_transform(
|
|
"let $a = $b; ==>> let $a = 11;",
|
|
"fn main() { let x = 10; x }",
|
|
expect![["fn main() { let x = 11; x }"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_let_stmt_replace_expr() {
|
|
// Trailing semicolon should be dropped from the new expression
|
|
assert_ssr_transform(
|
|
"let $a = $b; ==>> $b",
|
|
"fn main() { let x = 10; }",
|
|
expect![["fn main() { 10 }"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_blockexpr_replace_stmt_with_stmt() {
|
|
assert_ssr_transform(
|
|
"if $a() {$b;} ==>> $b;",
|
|
"{
|
|
if foo() {
|
|
bar();
|
|
}
|
|
Ok(())
|
|
}",
|
|
expect![[r#"{
|
|
bar();
|
|
Ok(())
|
|
}"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_blockexpr_match_trailing_expr() {
|
|
assert_matches(
|
|
"if $a() {$b;}",
|
|
"{
|
|
if foo() {
|
|
bar();
|
|
}
|
|
}",
|
|
&["if foo() {
|
|
bar();
|
|
}"],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_blockexpr_replace_trailing_expr_with_stmt() {
|
|
assert_ssr_transform(
|
|
"if $a() {$b;} ==>> $b;",
|
|
"{
|
|
if foo() {
|
|
bar();
|
|
}
|
|
}",
|
|
expect![["{
|
|
bar();
|
|
}"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_function_to_method() {
|
|
assert_ssr_transform(
|
|
"my_function($a, $b) ==>> ($a).my_method($b)",
|
|
"fn my_function() {} fn main() { loop { my_function( other_func(x, y), z + w) } }",
|
|
expect![["fn my_function() {} fn main() { loop { (other_func(x, y)).my_method(z + w) } }"]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_nested_function() {
|
|
assert_ssr_transform(
|
|
"foo($a, $b, $c) ==>> bar($c, baz($a, $b))",
|
|
r#"
|
|
//- /lib.rs crate:foo
|
|
fn foo() {}
|
|
fn bar() {}
|
|
fn baz() {}
|
|
fn main { foo (x + value.method(b), x+y-z, true && false) }
|
|
"#,
|
|
expect![[r#"
|
|
fn foo() {}
|
|
fn bar() {}
|
|
fn baz() {}
|
|
fn main { bar(true && false, baz(x + value.method(b), x+y-z)) }
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_expected_spacing() {
|
|
assert_ssr_transform(
|
|
"foo($x) + bar() ==>> bar($x)",
|
|
"fn foo() {} fn bar() {} fn main() { foo(5) + bar() }",
|
|
expect![["fn foo() {} fn bar() {} fn main() { bar(5) }"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_with_extra_space() {
|
|
assert_ssr_transform(
|
|
"foo($x ) + bar() ==>> bar($x)",
|
|
"fn foo() {} fn bar() {} fn main() { foo( 5 ) +bar( ) }",
|
|
expect![["fn foo() {} fn bar() {} fn main() { bar(5) }"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_keeps_nested_comment() {
|
|
assert_ssr_transform(
|
|
"foo($x) ==>> bar($x)",
|
|
"fn foo() {} fn bar() {} fn main() { foo(other(5 /* using 5 */)) }",
|
|
expect![["fn foo() {} fn bar() {} fn main() { bar(other(5 /* using 5 */)) }"]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_keeps_comment() {
|
|
assert_ssr_transform(
|
|
"foo($x) ==>> bar($x)",
|
|
"fn foo() {} fn bar() {} fn main() { foo(5 /* using 5 */) }",
|
|
expect![["fn foo() {} fn bar() {} fn main() { bar(5)/* using 5 */ }"]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_struct_lit() {
|
|
assert_ssr_transform(
|
|
"Foo{a: $a, b: $b} ==>> Foo::new($a, $b)",
|
|
r#"
|
|
struct Foo() {}
|
|
impl Foo { fn new() {} }
|
|
fn main() { Foo{b:2, a:1} }
|
|
"#,
|
|
expect![[r#"
|
|
struct Foo() {}
|
|
impl Foo { fn new() {} }
|
|
fn main() { Foo::new(1, 2) }
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ssr_struct_def() {
|
|
assert_ssr_transform(
|
|
"struct Foo { $f: $t } ==>> struct Foo($t);",
|
|
r#"struct Foo { field: i32 }"#,
|
|
expect![[r#"struct Foo(i32);"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ignores_whitespace() {
|
|
assert_matches("1+2", "fn f() -> i32 {1 + 2}", &["1 + 2"]);
|
|
assert_matches("1 + 2", "fn f() -> i32 {1+2}", &["1+2"]);
|
|
}
|
|
|
|
#[test]
|
|
fn no_match() {
|
|
assert_no_match("1 + 3", "fn f() -> i32 {1 + 2}");
|
|
}
|
|
|
|
#[test]
|
|
fn match_fn_definition() {
|
|
assert_matches("fn $a($b: $t) {$c}", "fn f(a: i32) {bar()}", &["fn f(a: i32) {bar()}"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_struct_definition() {
|
|
let code = r#"
|
|
struct Option<T> {}
|
|
struct Bar {}
|
|
struct Foo {name: Option<String>}"#;
|
|
assert_matches("struct $n {$f: Option<String>}", code, &["struct Foo {name: Option<String>}"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_expr() {
|
|
let code = r#"
|
|
fn foo() {}
|
|
fn f() -> i32 {foo(40 + 2, 42)}"#;
|
|
assert_matches("foo($a, $b)", code, &["foo(40 + 2, 42)"]);
|
|
assert_no_match("foo($a, $b, $c)", code);
|
|
assert_no_match("foo($a)", code);
|
|
}
|
|
|
|
#[test]
|
|
fn match_nested_method_calls() {
|
|
assert_matches(
|
|
"$a.z().z().z()",
|
|
"fn f() {h().i().j().z().z().z().d().e()}",
|
|
&["h().i().j().z().z().z()"],
|
|
);
|
|
}
|
|
|
|
// Make sure that our node matching semantics don't differ within macro calls.
|
|
#[test]
|
|
fn match_nested_method_calls_with_macro_call() {
|
|
assert_matches(
|
|
"$a.z().z().z()",
|
|
r#"
|
|
macro_rules! m1 { ($a:expr) => {$a}; }
|
|
fn f() {m1!(h().i().j().z().z().z().d().e())}"#,
|
|
&["h().i().j().z().z().z()"],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn match_complex_expr() {
|
|
let code = r#"
|
|
fn foo() {} fn bar() {}
|
|
fn f() -> i32 {foo(bar(40, 2), 42)}"#;
|
|
assert_matches("foo($a, $b)", code, &["foo(bar(40, 2), 42)"]);
|
|
assert_no_match("foo($a, $b, $c)", code);
|
|
assert_no_match("foo($a)", code);
|
|
assert_matches("bar($a, $b)", code, &["bar(40, 2)"]);
|
|
}
|
|
|
|
// Trailing commas in the code should be ignored.
|
|
#[test]
|
|
fn match_with_trailing_commas() {
|
|
// Code has comma, pattern doesn't.
|
|
assert_matches("foo($a, $b)", "fn foo() {} fn f() {foo(1, 2,);}", &["foo(1, 2,)"]);
|
|
assert_matches("Foo{$a, $b}", "struct Foo {} fn f() {Foo{1, 2,};}", &["Foo{1, 2,}"]);
|
|
|
|
// Pattern has comma, code doesn't.
|
|
assert_matches("foo($a, $b,)", "fn foo() {} fn f() {foo(1, 2);}", &["foo(1, 2)"]);
|
|
assert_matches("Foo{$a, $b,}", "struct Foo {} fn f() {Foo{1, 2};}", &["Foo{1, 2}"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_type() {
|
|
assert_matches("i32", "fn f() -> i32 {1 + 2}", &["i32"]);
|
|
assert_matches(
|
|
"Option<$a>",
|
|
"struct Option<T> {} fn f() -> Option<i32> {42}",
|
|
&["Option<i32>"],
|
|
);
|
|
assert_no_match(
|
|
"Option<$a>",
|
|
"struct Option<T> {} struct Result<T, E> {} fn f() -> Result<i32, ()> {42}",
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn match_struct_instantiation() {
|
|
let code = r#"
|
|
struct Foo {bar: i32, baz: i32}
|
|
fn f() {Foo {bar: 1, baz: 2}}"#;
|
|
assert_matches("Foo {bar: 1, baz: 2}", code, &["Foo {bar: 1, baz: 2}"]);
|
|
// Now with placeholders for all parts of the struct.
|
|
assert_matches("Foo {$a: $b, $c: $d}", code, &["Foo {bar: 1, baz: 2}"]);
|
|
assert_matches("Foo {}", "struct Foo {} fn f() {Foo {}}", &["Foo {}"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_path() {
|
|
let code = r#"
|
|
mod foo {
|
|
pub fn bar() {}
|
|
}
|
|
fn f() {foo::bar(42)}"#;
|
|
assert_matches("foo::bar", code, &["foo::bar"]);
|
|
assert_matches("$a::bar", code, &["foo::bar"]);
|
|
assert_matches("foo::$b", code, &["foo::bar"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_pattern() {
|
|
assert_matches("Some($a)", "struct Some(); fn f() {if let Some(x) = foo() {}}", &["Some(x)"]);
|
|
}
|
|
|
|
// If our pattern has a full path, e.g. a::b::c() and the code has c(), but c resolves to
|
|
// a::b::c, then we should match.
|
|
#[test]
|
|
fn match_fully_qualified_fn_path() {
|
|
let code = r#"
|
|
mod a {
|
|
pub mod b {
|
|
pub fn c(_: i32) {}
|
|
}
|
|
}
|
|
use a::b::c;
|
|
fn f1() {
|
|
c(42);
|
|
}
|
|
"#;
|
|
assert_matches("a::b::c($a)", code, &["c(42)"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_resolved_type_name() {
|
|
let code = r#"
|
|
mod m1 {
|
|
pub mod m2 {
|
|
pub trait Foo<T> {}
|
|
}
|
|
}
|
|
mod m3 {
|
|
trait Foo<T> {}
|
|
fn f1(f: Option<&dyn Foo<bool>>) {}
|
|
}
|
|
mod m4 {
|
|
use crate::m1::m2::Foo;
|
|
fn f1(f: Option<&dyn Foo<i32>>) {}
|
|
}
|
|
"#;
|
|
assert_matches("m1::m2::Foo<$t>", code, &["Foo<i32>"]);
|
|
}
|
|
|
|
#[test]
|
|
fn type_arguments_within_path() {
|
|
cov_mark::check!(type_arguments_within_path);
|
|
let code = r#"
|
|
mod foo {
|
|
pub struct Bar<T> {t: T}
|
|
impl<T> Bar<T> {
|
|
pub fn baz() {}
|
|
}
|
|
}
|
|
fn f1() {foo::Bar::<i32>::baz();}
|
|
"#;
|
|
assert_no_match("foo::Bar::<i64>::baz()", code);
|
|
assert_matches("foo::Bar::<i32>::baz()", code, &["foo::Bar::<i32>::baz()"]);
|
|
}
|
|
|
|
#[test]
|
|
fn literal_constraint() {
|
|
cov_mark::check!(literal_constraint);
|
|
let code = r#"
|
|
enum Option<T> { Some(T), None }
|
|
use Option::Some;
|
|
fn f1() {
|
|
let x1 = Some(42);
|
|
let x2 = Some("foo");
|
|
let x3 = Some(x1);
|
|
let x4 = Some(40 + 2);
|
|
let x5 = Some(true);
|
|
}
|
|
"#;
|
|
assert_matches("Some(${a:kind(literal)})", code, &["Some(42)", "Some(\"foo\")", "Some(true)"]);
|
|
assert_matches("Some(${a:not(kind(literal))})", code, &["Some(x1)", "Some(40 + 2)"]);
|
|
}
|
|
|
|
#[test]
|
|
fn match_reordered_struct_instantiation() {
|
|
assert_matches(
|
|
"Foo {aa: 1, b: 2, ccc: 3}",
|
|
"struct Foo {} fn f() {Foo {b: 2, ccc: 3, aa: 1}}",
|
|
&["Foo {b: 2, ccc: 3, aa: 1}"],
|
|
);
|
|
assert_no_match("Foo {a: 1}", "struct Foo {} fn f() {Foo {b: 1}}");
|
|
assert_no_match("Foo {a: 1}", "struct Foo {} fn f() {Foo {a: 2}}");
|
|
assert_no_match("Foo {a: 1, b: 2}", "struct Foo {} fn f() {Foo {a: 1}}");
|
|
assert_no_match("Foo {a: 1, b: 2}", "struct Foo {} fn f() {Foo {b: 2}}");
|
|
assert_no_match("Foo {a: 1, }", "struct Foo {} fn f() {Foo {a: 1, b: 2}}");
|
|
assert_no_match("Foo {a: 1, z: 9}", "struct Foo {} fn f() {Foo {a: 1}}");
|
|
}
|
|
|
|
#[test]
|
|
fn match_macro_invocation() {
|
|
assert_matches(
|
|
"foo!($a)",
|
|
"macro_rules! foo {() => {}} fn() {foo(foo!(foo()))}",
|
|
&["foo!(foo())"],
|
|
);
|
|
assert_matches(
|
|
"foo!(41, $a, 43)",
|
|
"macro_rules! foo {() => {}} fn() {foo!(41, 42, 43)}",
|
|
&["foo!(41, 42, 43)"],
|
|
);
|
|
assert_no_match("foo!(50, $a, 43)", "macro_rules! foo {() => {}} fn() {foo!(41, 42, 43}");
|
|
assert_no_match("foo!(41, $a, 50)", "macro_rules! foo {() => {}} fn() {foo!(41, 42, 43}");
|
|
assert_matches(
|
|
"foo!($a())",
|
|
"macro_rules! foo {() => {}} fn() {foo!(bar())}",
|
|
&["foo!(bar())"],
|
|
);
|
|
}
|
|
|
|
// When matching within a macro expansion, we only allow matches of nodes that originated from
|
|
// the macro call, not from the macro definition.
|
|
#[test]
|
|
fn no_match_expression_from_macro() {
|
|
assert_no_match(
|
|
"$a.clone()",
|
|
r#"
|
|
macro_rules! m1 {
|
|
() => {42.clone()}
|
|
}
|
|
fn f1() {m1!()}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
// We definitely don't want to allow matching of an expression that part originates from the
|
|
// macro call `42` and part from the macro definition `.clone()`.
|
|
#[test]
|
|
fn no_match_split_expression() {
|
|
assert_no_match(
|
|
"$a.clone()",
|
|
r#"
|
|
macro_rules! m1 {
|
|
($x:expr) => {$x.clone()}
|
|
}
|
|
fn f1() {m1!(42)}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_function_call() {
|
|
// This test also makes sure that we ignore empty-ranges.
|
|
assert_ssr_transform(
|
|
"foo() ==>> bar()",
|
|
"fn foo() {$0$0} fn bar() {} fn f1() {foo(); foo();}",
|
|
expect![["fn foo() {} fn bar() {} fn f1() {bar(); bar();}"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_function_call_with_placeholders() {
|
|
assert_ssr_transform(
|
|
"foo($a, $b) ==>> bar($b, $a)",
|
|
"fn foo() {} fn bar() {} fn f1() {foo(5, 42)}",
|
|
expect![["fn foo() {} fn bar() {} fn f1() {bar(42, 5)}"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_nested_function_calls() {
|
|
assert_ssr_transform(
|
|
"foo($a) ==>> bar($a)",
|
|
"fn foo() {} fn bar() {} fn f1() {foo(foo(42))}",
|
|
expect![["fn foo() {} fn bar() {} fn f1() {bar(bar(42))}"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_associated_function_call() {
|
|
assert_ssr_transform(
|
|
"Foo::new() ==>> Bar::new()",
|
|
r#"
|
|
struct Foo {}
|
|
impl Foo { fn new() {} }
|
|
struct Bar {}
|
|
impl Bar { fn new() {} }
|
|
fn f1() {Foo::new();}
|
|
"#,
|
|
expect![[r#"
|
|
struct Foo {}
|
|
impl Foo { fn new() {} }
|
|
struct Bar {}
|
|
impl Bar { fn new() {} }
|
|
fn f1() {Bar::new();}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_associated_trait_default_function_call() {
|
|
cov_mark::check!(replace_associated_trait_default_function_call);
|
|
assert_ssr_transform(
|
|
"Bar2::foo() ==>> Bar2::foo2()",
|
|
r#"
|
|
trait Foo { fn foo() {} }
|
|
pub struct Bar {}
|
|
impl Foo for Bar {}
|
|
pub struct Bar2 {}
|
|
impl Foo for Bar2 {}
|
|
impl Bar2 { fn foo2() {} }
|
|
fn main() {
|
|
Bar::foo();
|
|
Bar2::foo();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
trait Foo { fn foo() {} }
|
|
pub struct Bar {}
|
|
impl Foo for Bar {}
|
|
pub struct Bar2 {}
|
|
impl Foo for Bar2 {}
|
|
impl Bar2 { fn foo2() {} }
|
|
fn main() {
|
|
Bar::foo();
|
|
Bar2::foo2();
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_associated_trait_constant() {
|
|
cov_mark::check!(replace_associated_trait_constant);
|
|
assert_ssr_transform(
|
|
"Bar2::VALUE ==>> Bar2::VALUE_2222",
|
|
r#"
|
|
trait Foo { const VALUE: i32; const VALUE_2222: i32; }
|
|
pub struct Bar {}
|
|
impl Foo for Bar { const VALUE: i32 = 1; const VALUE_2222: i32 = 2; }
|
|
pub struct Bar2 {}
|
|
impl Foo for Bar2 { const VALUE: i32 = 1; const VALUE_2222: i32 = 2; }
|
|
impl Bar2 { fn foo2() {} }
|
|
fn main() {
|
|
Bar::VALUE;
|
|
Bar2::VALUE;
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
trait Foo { const VALUE: i32; const VALUE_2222: i32; }
|
|
pub struct Bar {}
|
|
impl Foo for Bar { const VALUE: i32 = 1; const VALUE_2222: i32 = 2; }
|
|
pub struct Bar2 {}
|
|
impl Foo for Bar2 { const VALUE: i32 = 1; const VALUE_2222: i32 = 2; }
|
|
impl Bar2 { fn foo2() {} }
|
|
fn main() {
|
|
Bar::VALUE;
|
|
Bar2::VALUE_2222;
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_path_in_different_contexts() {
|
|
// Note the $0 inside module a::b which marks the point where the rule is interpreted. We
|
|
// replace foo with bar, but both need different path qualifiers in different contexts. In f4,
|
|
// foo is unqualified because of a use statement, however the replacement needs to be fully
|
|
// qualified.
|
|
assert_ssr_transform(
|
|
"c::foo() ==>> c::bar()",
|
|
r#"
|
|
mod a {
|
|
pub mod b {$0
|
|
pub mod c {
|
|
pub fn foo() {}
|
|
pub fn bar() {}
|
|
fn f1() { foo() }
|
|
}
|
|
fn f2() { c::foo() }
|
|
}
|
|
fn f3() { b::c::foo() }
|
|
}
|
|
use a::b::c::foo;
|
|
fn f4() { foo() }
|
|
"#,
|
|
expect![[r#"
|
|
mod a {
|
|
pub mod b {
|
|
pub mod c {
|
|
pub fn foo() {}
|
|
pub fn bar() {}
|
|
fn f1() { bar() }
|
|
}
|
|
fn f2() { c::bar() }
|
|
}
|
|
fn f3() { b::c::bar() }
|
|
}
|
|
use a::b::c::foo;
|
|
fn f4() { a::b::c::bar() }
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_associated_function_with_generics() {
|
|
assert_ssr_transform(
|
|
"c::Foo::<$a>::new() ==>> d::Bar::<$a>::default()",
|
|
r#"
|
|
mod c {
|
|
pub struct Foo<T> {v: T}
|
|
impl<T> Foo<T> { pub fn new() {} }
|
|
fn f1() {
|
|
Foo::<i32>::new();
|
|
}
|
|
}
|
|
mod d {
|
|
pub struct Bar<T> {v: T}
|
|
impl<T> Bar<T> { pub fn default() {} }
|
|
fn f1() {
|
|
super::c::Foo::<i32>::new();
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
mod c {
|
|
pub struct Foo<T> {v: T}
|
|
impl<T> Foo<T> { pub fn new() {} }
|
|
fn f1() {
|
|
crate::d::Bar::<i32>::default();
|
|
}
|
|
}
|
|
mod d {
|
|
pub struct Bar<T> {v: T}
|
|
impl<T> Bar<T> { pub fn default() {} }
|
|
fn f1() {
|
|
Bar::<i32>::default();
|
|
}
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_type() {
|
|
assert_ssr_transform(
|
|
"Result<(), $a> ==>> Option<$a>",
|
|
"struct Result<T, E> {} struct Option<T> {} fn f1() -> Result<(), Vec<Error>> {foo()}",
|
|
expect![[
|
|
"struct Result<T, E> {} struct Option<T> {} fn f1() -> Option<Vec<Error>> {foo()}"
|
|
]],
|
|
);
|
|
assert_ssr_transform(
|
|
"dyn Trait<$a> ==>> DynTrait<$a>",
|
|
r#"
|
|
trait Trait<T> {}
|
|
struct DynTrait<T> {}
|
|
fn f1() -> dyn Trait<Vec<Error>> {foo()}
|
|
"#,
|
|
expect![[r#"
|
|
trait Trait<T> {}
|
|
struct DynTrait<T> {}
|
|
fn f1() -> DynTrait<Vec<Error>> {foo()}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_macro_invocations() {
|
|
assert_ssr_transform(
|
|
"try!($a) ==>> $a?",
|
|
"macro_rules! try {() => {}} fn f1() -> Result<(), E> {bar(try!(foo()));}",
|
|
expect![["macro_rules! try {() => {}} fn f1() -> Result<(), E> {bar(foo()?);}"]],
|
|
);
|
|
assert_ssr_transform(
|
|
"foo!($a($b)) ==>> foo($b, $a)",
|
|
"macro_rules! foo {() => {}} fn f1() {foo!(abc(def() + 2));}",
|
|
expect![["macro_rules! foo {() => {}} fn f1() {foo(def() + 2, abc);}"]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_binary_op() {
|
|
assert_ssr_transform(
|
|
"$a + $b ==>> $b + $a",
|
|
"fn f() {2 * 3 + 4 * 5}",
|
|
expect![["fn f() {4 * 5 + 2 * 3}"]],
|
|
);
|
|
assert_ssr_transform(
|
|
"$a + $b ==>> $b + $a",
|
|
"fn f() {1 + 2 + 3 + 4}",
|
|
expect![[r#"fn f() {4 + (3 + (2 + 1))}"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn match_binary_op() {
|
|
assert_matches("$a + $b", "fn f() {1 + 2 + 3 + 4}", &["1 + 2", "1 + 2 + 3", "1 + 2 + 3 + 4"]);
|
|
}
|
|
|
|
#[test]
|
|
fn multiple_rules() {
|
|
assert_ssr_transforms(
|
|
&["$a + 1 ==>> add_one($a)", "$a + $b ==>> add($a, $b)"],
|
|
"fn add() {} fn add_one() {} fn f() -> i32 {3 + 2 + 1}",
|
|
expect![["fn add() {} fn add_one() {} fn f() -> i32 {add_one(add(3, 2))}"]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn multiple_rules_with_nested_matches() {
|
|
assert_ssr_transforms(
|
|
&["foo1($a) ==>> bar1($a)", "foo2($a) ==>> bar2($a)"],
|
|
r#"
|
|
fn foo1() {} fn foo2() {} fn bar1() {} fn bar2() {}
|
|
fn f() {foo1(foo2(foo1(foo2(foo1(42)))))}
|
|
"#,
|
|
expect![[r#"
|
|
fn foo1() {} fn foo2() {} fn bar1() {} fn bar2() {}
|
|
fn f() {bar1(bar2(bar1(bar2(bar1(42)))))}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn match_within_macro_invocation() {
|
|
let code = r#"
|
|
macro_rules! foo {
|
|
($a:stmt; $b:expr) => {
|
|
$b
|
|
};
|
|
}
|
|
struct A {}
|
|
impl A {
|
|
fn bar() {}
|
|
}
|
|
fn f1() {
|
|
let aaa = A {};
|
|
foo!(macro_ignores_this(); aaa.bar());
|
|
}
|
|
"#;
|
|
assert_matches("$a.bar()", code, &["aaa.bar()"]);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_within_macro_expansion() {
|
|
assert_ssr_transform(
|
|
"$a.foo() ==>> bar($a)",
|
|
r#"
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn bar() {}
|
|
fn f() {macro1!(5.x().foo().o2())}
|
|
"#,
|
|
expect![[r#"
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn bar() {}
|
|
fn f() {macro1!(bar(5.x()).o2())}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn replace_outside_and_within_macro_expansion() {
|
|
assert_ssr_transform(
|
|
"foo($a) ==>> bar($a)",
|
|
r#"
|
|
fn foo() {} fn bar() {}
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn f() {foo(foo(macro1!(foo(foo(42)))))}
|
|
"#,
|
|
expect![[r#"
|
|
fn foo() {} fn bar() {}
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn f() {bar(bar(macro1!(bar(bar(42)))))}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn preserves_whitespace_within_macro_expansion() {
|
|
assert_ssr_transform(
|
|
"$a + $b ==>> $b - $a",
|
|
r#"
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn f() {macro1!(1 * 2 + 3 + 4)}
|
|
"#,
|
|
expect![[r#"
|
|
macro_rules! macro1 {
|
|
($a:expr) => {$a}
|
|
}
|
|
fn f() {macro1!(4 - (3 - 1 * 2))}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn add_parenthesis_when_necessary() {
|
|
assert_ssr_transform(
|
|
"foo($a) ==>> $a.to_string()",
|
|
r#"
|
|
fn foo(_: i32) {}
|
|
fn bar3(v: i32) {
|
|
foo(1 + 2);
|
|
foo(-v);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
fn foo(_: i32) {}
|
|
fn bar3(v: i32) {
|
|
(1 + 2).to_string();
|
|
(-v).to_string();
|
|
}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn match_failure_reasons() {
|
|
let code = r#"
|
|
fn bar() {}
|
|
macro_rules! foo {
|
|
($a:expr) => {
|
|
1 + $a + 2
|
|
};
|
|
}
|
|
fn f1() {
|
|
bar(1, 2);
|
|
foo!(5 + 43.to_string() + 5);
|
|
}
|
|
"#;
|
|
assert_match_failure_reason(
|
|
"bar($a, 3)",
|
|
code,
|
|
"bar(1, 2)",
|
|
r#"Pattern wanted token '3' (INT_NUMBER), but code had token '2' (INT_NUMBER)"#,
|
|
);
|
|
assert_match_failure_reason(
|
|
"42.to_string()",
|
|
code,
|
|
"43.to_string()",
|
|
r#"Pattern wanted token '42' (INT_NUMBER), but code had token '43' (INT_NUMBER)"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn overlapping_possible_matches() {
|
|
// There are three possible matches here, however the middle one, `foo(foo(foo(42)))` shouldn't
|
|
// match because it overlaps with the outer match. The inner match is permitted since it's is
|
|
// contained entirely within the placeholder of the outer match.
|
|
assert_matches(
|
|
"foo(foo($a))",
|
|
"fn foo() {} fn main() {foo(foo(foo(foo(42))))}",
|
|
&["foo(foo(42))", "foo(foo(foo(foo(42))))"],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn use_declaration_with_braces() {
|
|
// It would be OK for a path rule to match and alter a use declaration. We shouldn't mess it up
|
|
// though. In particular, we must not change `use foo::{baz, bar}` to `use foo::{baz,
|
|
// foo2::bar2}`.
|
|
cov_mark::check!(use_declaration_with_braces);
|
|
assert_ssr_transform(
|
|
"foo::bar ==>> foo2::bar2",
|
|
r#"
|
|
mod foo { pub fn bar() {} pub fn baz() {} }
|
|
mod foo2 { pub fn bar2() {} }
|
|
use foo::{baz, bar};
|
|
fn main() { bar() }
|
|
"#,
|
|
expect![["
|
|
mod foo { pub fn bar() {} pub fn baz() {} }
|
|
mod foo2 { pub fn bar2() {} }
|
|
use foo::{baz, bar};
|
|
fn main() { foo2::bar2() }
|
|
"]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn ufcs_matches_method_call() {
|
|
let code = r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn new(_: i32) -> Foo { Foo {} }
|
|
fn do_stuff(&self, _: i32) {}
|
|
}
|
|
struct Bar {}
|
|
impl Bar {
|
|
fn new(_: i32) -> Bar { Bar {} }
|
|
fn do_stuff(&self, v: i32) {}
|
|
}
|
|
fn main() {
|
|
let b = Bar {};
|
|
let f = Foo {};
|
|
b.do_stuff(1);
|
|
f.do_stuff(2);
|
|
Foo::new(4).do_stuff(3);
|
|
// Too many / too few args - should never match
|
|
f.do_stuff(2, 10);
|
|
f.do_stuff();
|
|
}
|
|
"#;
|
|
assert_matches("Foo::do_stuff($a, $b)", code, &["f.do_stuff(2)", "Foo::new(4).do_stuff(3)"]);
|
|
// The arguments needs special handling in the case of a function call matching a method call
|
|
// and the first argument is different.
|
|
assert_matches("Foo::do_stuff($a, 2)", code, &["f.do_stuff(2)"]);
|
|
assert_matches("Foo::do_stuff(Foo::new(4), $b)", code, &["Foo::new(4).do_stuff(3)"]);
|
|
|
|
assert_ssr_transform(
|
|
"Foo::do_stuff(Foo::new($a), $b) ==>> Bar::new($b).do_stuff($a)",
|
|
code,
|
|
expect![[r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn new(_: i32) -> Foo { Foo {} }
|
|
fn do_stuff(&self, _: i32) {}
|
|
}
|
|
struct Bar {}
|
|
impl Bar {
|
|
fn new(_: i32) -> Bar { Bar {} }
|
|
fn do_stuff(&self, v: i32) {}
|
|
}
|
|
fn main() {
|
|
let b = Bar {};
|
|
let f = Foo {};
|
|
b.do_stuff(1);
|
|
f.do_stuff(2);
|
|
Bar::new(3).do_stuff(4);
|
|
// Too many / too few args - should never match
|
|
f.do_stuff(2, 10);
|
|
f.do_stuff();
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn pattern_is_a_single_segment_path() {
|
|
cov_mark::check!(pattern_is_a_single_segment_path);
|
|
// The first function should not be altered because the `foo` in scope at the cursor position is
|
|
// a different `foo`. This case is special because "foo" can be parsed as a pattern (IDENT_PAT ->
|
|
// NAME -> IDENT), which contains no path. If we're not careful we'll end up matching the `foo`
|
|
// in `let foo` from the first function. Whether we should match the `let foo` in the second
|
|
// function is less clear. At the moment, we don't. Doing so sounds like a rename operation,
|
|
// which isn't really what SSR is for, especially since the replacement `bar` must be able to be
|
|
// resolved, which means if we rename `foo` we'll get a name collision.
|
|
assert_ssr_transform(
|
|
"foo ==>> bar",
|
|
r#"
|
|
fn f1() -> i32 {
|
|
let foo = 1;
|
|
let bar = 2;
|
|
foo
|
|
}
|
|
fn f1() -> i32 {
|
|
let foo = 1;
|
|
let bar = 2;
|
|
foo$0
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
fn f1() -> i32 {
|
|
let foo = 1;
|
|
let bar = 2;
|
|
foo
|
|
}
|
|
fn f1() -> i32 {
|
|
let foo = 1;
|
|
let bar = 2;
|
|
bar
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_local_variable_reference() {
|
|
// The pattern references a local variable `foo` in the block containing the cursor. We should
|
|
// only replace references to this variable `foo`, not other variables that just happen to have
|
|
// the same name.
|
|
cov_mark::check!(cursor_after_semicolon);
|
|
assert_ssr_transform(
|
|
"foo + $a ==>> $a - foo",
|
|
r#"
|
|
fn bar1() -> i32 {
|
|
let mut res = 0;
|
|
let foo = 5;
|
|
res += foo + 1;
|
|
let foo = 10;
|
|
res += foo + 2;$0
|
|
res += foo + 3;
|
|
let foo = 15;
|
|
res += foo + 4;
|
|
res
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
fn bar1() -> i32 {
|
|
let mut res = 0;
|
|
let foo = 5;
|
|
res += foo + 1;
|
|
let foo = 10;
|
|
res += 2 - foo;
|
|
res += 3 - foo;
|
|
let foo = 15;
|
|
res += foo + 4;
|
|
res
|
|
}
|
|
"#]],
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn replace_path_within_selection() {
|
|
assert_ssr_transform(
|
|
"foo ==>> bar",
|
|
r#"
|
|
fn main() {
|
|
let foo = 41;
|
|
let bar = 42;
|
|
do_stuff(foo);
|
|
do_stuff(foo);$0
|
|
do_stuff(foo);
|
|
do_stuff(foo);$0
|
|
do_stuff(foo);
|
|
}"#,
|
|
expect![[r#"
|
|
fn main() {
|
|
let foo = 41;
|
|
let bar = 42;
|
|
do_stuff(foo);
|
|
do_stuff(foo);
|
|
do_stuff(bar);
|
|
do_stuff(bar);
|
|
do_stuff(foo);
|
|
}"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_nonpath_within_selection() {
|
|
cov_mark::check!(replace_nonpath_within_selection);
|
|
assert_ssr_transform(
|
|
"$a + $b ==>> $b * $a",
|
|
r#"
|
|
fn main() {
|
|
let v = 1 + 2;$0
|
|
let v2 = 3 + 3;
|
|
let v3 = 4 + 5;$0
|
|
let v4 = 6 + 7;
|
|
}"#,
|
|
expect![[r#"
|
|
fn main() {
|
|
let v = 1 + 2;
|
|
let v2 = 3 * 3;
|
|
let v3 = 5 * 4;
|
|
let v4 = 6 + 7;
|
|
}"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_self() {
|
|
// `foo(self)` occurs twice in the code, however only the first occurrence is the `self` that's
|
|
// in scope where the rule is invoked.
|
|
assert_ssr_transform(
|
|
"foo(self) ==>> bar(self)",
|
|
r#"
|
|
struct S1 {}
|
|
fn foo(_: &S1) {}
|
|
fn bar(_: &S1) {}
|
|
impl S1 {
|
|
fn f1(&self) {
|
|
foo(self)$0
|
|
}
|
|
fn f2(&self) {
|
|
foo(self)
|
|
}
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
struct S1 {}
|
|
fn foo(_: &S1) {}
|
|
fn bar(_: &S1) {}
|
|
impl S1 {
|
|
fn f1(&self) {
|
|
bar(self)
|
|
}
|
|
fn f2(&self) {
|
|
foo(self)
|
|
}
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn match_trait_method_call() {
|
|
// `Bar::foo` and `Bar2::foo` resolve to the same function. Make sure we only match if the type
|
|
// matches what's in the pattern. Also checks that we handle autoderef.
|
|
let code = r#"
|
|
pub struct Bar {}
|
|
pub struct Bar2 {}
|
|
pub trait Foo {
|
|
fn foo(&self, _: i32) {}
|
|
}
|
|
impl Foo for Bar {}
|
|
impl Foo for Bar2 {}
|
|
fn main() {
|
|
let v1 = Bar {};
|
|
let v2 = Bar2 {};
|
|
let v1_ref = &v1;
|
|
let v2_ref = &v2;
|
|
v1.foo(1);
|
|
v2.foo(2);
|
|
Bar::foo(&v1, 3);
|
|
Bar2::foo(&v2, 4);
|
|
v1_ref.foo(5);
|
|
v2_ref.foo(6);
|
|
}
|
|
"#;
|
|
assert_matches("Bar::foo($a, $b)", code, &["v1.foo(1)", "Bar::foo(&v1, 3)", "v1_ref.foo(5)"]);
|
|
assert_matches("Bar2::foo($a, $b)", code, &["v2.foo(2)", "Bar2::foo(&v2, 4)", "v2_ref.foo(6)"]);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_autoref_autoderef_capture() {
|
|
// Here we have several calls to `$a.foo()`. In the first case autoref is applied, in the
|
|
// second, we already have a reference, so it isn't. When $a is used in a context where autoref
|
|
// doesn't apply, we need to prefix it with `&`. Finally, we have some cases where autoderef
|
|
// needs to be applied.
|
|
cov_mark::check!(replace_autoref_autoderef_capture);
|
|
let code = r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn foo(&self) {}
|
|
fn foo2(&self) {}
|
|
}
|
|
fn bar(_: &Foo) {}
|
|
fn main() {
|
|
let f = Foo {};
|
|
let fr = &f;
|
|
let fr2 = &fr;
|
|
let fr3 = &fr2;
|
|
f.foo();
|
|
fr.foo();
|
|
fr2.foo();
|
|
fr3.foo();
|
|
}
|
|
"#;
|
|
assert_ssr_transform(
|
|
"Foo::foo($a) ==>> bar($a)",
|
|
code,
|
|
expect![[r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn foo(&self) {}
|
|
fn foo2(&self) {}
|
|
}
|
|
fn bar(_: &Foo) {}
|
|
fn main() {
|
|
let f = Foo {};
|
|
let fr = &f;
|
|
let fr2 = &fr;
|
|
let fr3 = &fr2;
|
|
bar(&f);
|
|
bar(&*fr);
|
|
bar(&**fr2);
|
|
bar(&***fr3);
|
|
}
|
|
"#]],
|
|
);
|
|
// If the placeholder is used as the receiver of another method call, then we don't need to
|
|
// explicitly autoderef or autoref.
|
|
assert_ssr_transform(
|
|
"Foo::foo($a) ==>> $a.foo2()",
|
|
code,
|
|
expect![[r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn foo(&self) {}
|
|
fn foo2(&self) {}
|
|
}
|
|
fn bar(_: &Foo) {}
|
|
fn main() {
|
|
let f = Foo {};
|
|
let fr = &f;
|
|
let fr2 = &fr;
|
|
let fr3 = &fr2;
|
|
f.foo2();
|
|
fr.foo2();
|
|
fr2.foo2();
|
|
fr3.foo2();
|
|
}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn replace_autoref_mut() {
|
|
let code = r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn foo(&mut self) {}
|
|
}
|
|
fn bar(_: &mut Foo) {}
|
|
fn main() {
|
|
let mut f = Foo {};
|
|
f.foo();
|
|
let fr = &mut f;
|
|
fr.foo();
|
|
}
|
|
"#;
|
|
assert_ssr_transform(
|
|
"Foo::foo($a) ==>> bar($a)",
|
|
code,
|
|
expect![[r#"
|
|
struct Foo {}
|
|
impl Foo {
|
|
fn foo(&mut self) {}
|
|
}
|
|
fn bar(_: &mut Foo) {}
|
|
fn main() {
|
|
let mut f = Foo {};
|
|
bar(&mut f);
|
|
let fr = &mut f;
|
|
bar(&mut *fr);
|
|
}
|
|
"#]],
|
|
);
|
|
}
|