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-rw-r--r--crates/ra_ide/src/completion/complete_attribute.rs1263
1 files changed, 459 insertions, 804 deletions
diff --git a/crates/ra_ide/src/completion/complete_attribute.rs b/crates/ra_ide/src/completion/complete_attribute.rs
index 6beeca457..2faaae974 100644
--- a/crates/ra_ide/src/completion/complete_attribute.rs
+++ b/crates/ra_ide/src/completion/complete_attribute.rs
@@ -13,14 +13,18 @@ use crate::completion::{
13 13
14pub(super) fn complete_attribute(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> { 14pub(super) fn complete_attribute(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
15 let attribute = ctx.attribute_under_caret.as_ref()?; 15 let attribute = ctx.attribute_under_caret.as_ref()?;
16 16 match (attribute.path(), attribute.token_tree()) {
17 match (attribute.path(), attribute.input()) { 17 (Some(path), Some(token_tree)) if path.to_string() == "derive" => {
18 (Some(path), Some(ast::AttrInput::TokenTree(token_tree)))
19 if path.to_string() == "derive" =>
20 {
21 complete_derive(acc, ctx, token_tree) 18 complete_derive(acc, ctx, token_tree)
22 } 19 }
23 (_, Some(ast::AttrInput::TokenTree(_token_tree))) => {} 20 (Some(path), Some(token_tree))
21 if ["allow", "warn", "deny", "forbid"]
22 .iter()
23 .any(|lint_level| lint_level == &path.to_string()) =>
24 {
25 complete_lint(acc, ctx, token_tree)
26 }
27 (_, Some(_token_tree)) => {}
24 _ => complete_attribute_start(acc, ctx, attribute), 28 _ => complete_attribute_start(acc, ctx, attribute),
25 } 29 }
26 Some(()) 30 Some(())
@@ -46,7 +50,7 @@ fn complete_attribute_start(acc: &mut Completions, ctx: &CompletionContext, attr
46 _ => {} 50 _ => {}
47 } 51 }
48 52
49 if attribute.kind() == ast::AttrKind::Inner || !attr_completion.should_be_inner { 53 if attribute.kind() == ast::AttrKind::Inner || !attr_completion.prefer_inner {
50 acc.add(item); 54 acc.add(item);
51 } 55 }
52 } 56 }
@@ -56,163 +60,76 @@ struct AttrCompletion {
56 label: &'static str, 60 label: &'static str,
57 lookup: Option<&'static str>, 61 lookup: Option<&'static str>,
58 snippet: Option<&'static str>, 62 snippet: Option<&'static str>,
59 should_be_inner: bool, 63 prefer_inner: bool,
64}
65
66impl AttrCompletion {
67 const fn prefer_inner(self) -> AttrCompletion {
68 AttrCompletion { prefer_inner: true, ..self }
69 }
70}
71
72const fn attr(
73 label: &'static str,
74 lookup: Option<&'static str>,
75 snippet: Option<&'static str>,
76) -> AttrCompletion {
77 AttrCompletion { label, lookup, snippet, prefer_inner: false }
60} 78}
61 79
62const ATTRIBUTES: &[AttrCompletion] = &[ 80const ATTRIBUTES: &[AttrCompletion] = &[
63 AttrCompletion { 81 attr("allow(…)", Some("allow"), Some("allow(${0:lint})")),
64 label: "allow(…)", 82 attr("cfg_attr(…)", Some("cfg_attr"), Some("cfg_attr(${1:predicate}, ${0:attr})")),
65 snippet: Some("allow(${0:lint})"), 83 attr("cfg(…)", Some("cfg"), Some("cfg(${0:predicate})")),
66 should_be_inner: false, 84 attr("deny(…)", Some("deny"), Some("deny(${0:lint})")),
67 lookup: Some("allow"), 85 attr(r#"deprecated = "…""#, Some("deprecated"), Some(r#"deprecated = "${0:reason}""#)),
68 }, 86 attr("derive(…)", Some("derive"), Some(r#"derive(${0:Debug})"#)),
69 AttrCompletion { 87 attr(r#"doc = "…""#, Some("doc"), Some(r#"doc = "${0:docs}""#)),
70 label: "cfg_attr(…)", 88 attr("feature(…)", Some("feature"), Some("feature(${0:flag})")).prefer_inner(),
71 snippet: Some("cfg_attr(${1:predicate}, ${0:attr})"), 89 attr("forbid(…)", Some("forbid"), Some("forbid(${0:lint})")),
72 should_be_inner: false,
73 lookup: Some("cfg_attr"),
74 },
75 AttrCompletion {
76 label: "cfg(…)",
77 snippet: Some("cfg(${0:predicate})"),
78 should_be_inner: false,
79 lookup: Some("cfg"),
80 },
81 AttrCompletion {
82 label: "deny(…)",
83 snippet: Some("deny(${0:lint})"),
84 should_be_inner: false,
85 lookup: Some("deny"),
86 },
87 AttrCompletion {
88 label: r#"deprecated = "…""#,
89 snippet: Some(r#"deprecated = "${0:reason}""#),
90 should_be_inner: false,
91 lookup: Some("deprecated"),
92 },
93 AttrCompletion {
94 label: "derive(…)",
95 snippet: Some(r#"derive(${0:Debug})"#),
96 should_be_inner: false,
97 lookup: Some("derive"),
98 },
99 AttrCompletion {
100 label: r#"doc = "…""#,
101 snippet: Some(r#"doc = "${0:docs}""#),
102 should_be_inner: false,
103 lookup: Some("doc"),
104 },
105 AttrCompletion {
106 label: "feature(…)",
107 snippet: Some("feature(${0:flag})"),
108 should_be_inner: true,
109 lookup: Some("feature"),
110 },
111 AttrCompletion {
112 label: "forbid(…)",
113 snippet: Some("forbid(${0:lint})"),
114 should_be_inner: false,
115 lookup: Some("forbid"),
116 },
117 // FIXME: resolve through macro resolution? 90 // FIXME: resolve through macro resolution?
118 AttrCompletion { 91 attr("global_allocator", None, None).prefer_inner(),
119 label: "global_allocator", 92 attr(r#"ignore = "…""#, Some("ignore"), Some(r#"ignore = "${0:reason}""#)),
120 snippet: None, 93 attr("inline(…)", Some("inline"), Some("inline(${0:lint})")),
121 should_be_inner: true, 94 attr(r#"link_name = "…""#, Some("link_name"), Some(r#"link_name = "${0:symbol_name}""#)),
122 lookup: None, 95 attr("link", None, None),
123 }, 96 attr("macro_export", None, None),
124 AttrCompletion { 97 attr("macro_use", None, None),
125 label: "ignore(…)", 98 attr(r#"must_use = "…""#, Some("must_use"), Some(r#"must_use = "${0:reason}""#)),
126 snippet: Some("ignore(${0:lint})"), 99 attr("no_mangle", None, None),
127 should_be_inner: false, 100 attr("no_std", None, None).prefer_inner(),
128 lookup: Some("ignore"), 101 attr("non_exhaustive", None, None),
129 }, 102 attr("panic_handler", None, None).prefer_inner(),
130 AttrCompletion { 103 attr("path = \"…\"", Some("path"), Some("path =\"${0:path}\"")),
131 label: "inline(…)", 104 attr("proc_macro", None, None),
132 snippet: Some("inline(${0:lint})"), 105 attr("proc_macro_attribute", None, None),
133 should_be_inner: false, 106 attr("proc_macro_derive(…)", Some("proc_macro_derive"), Some("proc_macro_derive(${0:Trait})")),
134 lookup: Some("inline"), 107 attr("recursion_limit = …", Some("recursion_limit"), Some("recursion_limit = ${0:128}"))
135 }, 108 .prefer_inner(),
136 AttrCompletion { 109 attr("repr(…)", Some("repr"), Some("repr(${0:C})")),
137 label: r#"link_name = "…""#, 110 attr(
138 snippet: Some(r#"link_name = "${0:symbol_name}""#), 111 "should_panic(…)",
139 should_be_inner: false, 112 Some("should_panic"),
140 lookup: Some("link_name"), 113 Some(r#"should_panic(expected = "${0:reason}")"#),
141 }, 114 ),
142 AttrCompletion { label: "link", snippet: None, should_be_inner: false, lookup: None }, 115 attr(
143 AttrCompletion { label: "macro_export", snippet: None, should_be_inner: false, lookup: None }, 116 r#"target_feature = "…""#,
144 AttrCompletion { label: "macro_use", snippet: None, should_be_inner: false, lookup: None }, 117 Some("target_feature"),
145 AttrCompletion { 118 Some("target_feature = \"${0:feature}\""),
146 label: r#"must_use = "…""#, 119 ),
147 snippet: Some(r#"must_use = "${0:reason}""#), 120 attr("test", None, None),
148 should_be_inner: false, 121 attr("used", None, None),
149 lookup: Some("must_use"), 122 attr("warn(…)", Some("warn"), Some("warn(${0:lint})")),
150 }, 123 attr(
151 AttrCompletion { label: "no_mangle", snippet: None, should_be_inner: false, lookup: None }, 124 r#"windows_subsystem = "…""#,
152 AttrCompletion { label: "no_std", snippet: None, should_be_inner: true, lookup: None }, 125 Some("windows_subsystem"),
153 AttrCompletion { label: "non_exhaustive", snippet: None, should_be_inner: false, lookup: None }, 126 Some(r#"windows_subsystem = "${0:subsystem}""#),
154 AttrCompletion { label: "panic_handler", snippet: None, should_be_inner: true, lookup: None }, 127 )
155 AttrCompletion { 128 .prefer_inner(),
156 label: "path = \"…\"",
157 snippet: Some("path =\"${0:path}\""),
158 should_be_inner: false,
159 lookup: Some("path"),
160 },
161 AttrCompletion { label: "proc_macro", snippet: None, should_be_inner: false, lookup: None },
162 AttrCompletion {
163 label: "proc_macro_attribute",
164 snippet: None,
165 should_be_inner: false,
166 lookup: None,
167 },
168 AttrCompletion {
169 label: "proc_macro_derive(…)",
170 snippet: Some("proc_macro_derive(${0:Trait})"),
171 should_be_inner: false,
172 lookup: Some("proc_macro_derive"),
173 },
174 AttrCompletion {
175 label: "recursion_limit = …",
176 snippet: Some("recursion_limit = ${0:128}"),
177 should_be_inner: true,
178 lookup: Some("recursion_limit"),
179 },
180 AttrCompletion {
181 label: "repr(…)",
182 snippet: Some("repr(${0:C})"),
183 should_be_inner: false,
184 lookup: Some("repr"),
185 },
186 AttrCompletion {
187 label: "should_panic(…)",
188 snippet: Some(r#"should_panic(expected = "${0:reason}")"#),
189 should_be_inner: false,
190 lookup: Some("should_panic"),
191 },
192 AttrCompletion {
193 label: r#"target_feature = "…""#,
194 snippet: Some("target_feature = \"${0:feature}\""),
195 should_be_inner: false,
196 lookup: Some("target_feature"),
197 },
198 AttrCompletion { label: "test", snippet: None, should_be_inner: false, lookup: None },
199 AttrCompletion { label: "used", snippet: None, should_be_inner: false, lookup: None },
200 AttrCompletion {
201 label: "warn(…)",
202 snippet: Some("warn(${0:lint})"),
203 should_be_inner: false,
204 lookup: Some("warn"),
205 },
206 AttrCompletion {
207 label: r#"windows_subsystem = "…""#,
208 snippet: Some(r#"windows_subsystem = "${0:subsystem}""#),
209 should_be_inner: true,
210 lookup: Some("windows_subsystem"),
211 },
212]; 129];
213 130
214fn complete_derive(acc: &mut Completions, ctx: &CompletionContext, derive_input: ast::TokenTree) { 131fn complete_derive(acc: &mut Completions, ctx: &CompletionContext, derive_input: ast::TokenTree) {
215 if let Ok(existing_derives) = parse_derive_input(derive_input) { 132 if let Ok(existing_derives) = parse_comma_sep_input(derive_input) {
216 for derive_completion in DEFAULT_DERIVE_COMPLETIONS 133 for derive_completion in DEFAULT_DERIVE_COMPLETIONS
217 .into_iter() 134 .into_iter()
218 .filter(|completion| !existing_derives.contains(completion.label)) 135 .filter(|completion| !existing_derives.contains(completion.label))
@@ -245,7 +162,26 @@ fn complete_derive(acc: &mut Completions, ctx: &CompletionContext, derive_input:
245 } 162 }
246} 163}
247 164
248fn parse_derive_input(derive_input: ast::TokenTree) -> Result<FxHashSet<String>, ()> { 165fn complete_lint(acc: &mut Completions, ctx: &CompletionContext, derive_input: ast::TokenTree) {
166 if let Ok(existing_lints) = parse_comma_sep_input(derive_input) {
167 for lint_completion in DEFAULT_LINT_COMPLETIONS
168 .into_iter()
169 .filter(|completion| !existing_lints.contains(completion.label))
170 {
171 acc.add(
172 CompletionItem::new(
173 CompletionKind::Attribute,
174 ctx.source_range(),
175 lint_completion.label,
176 )
177 .kind(CompletionItemKind::Attribute)
178 .detail(lint_completion.description),
179 );
180 }
181 }
182}
183
184fn parse_comma_sep_input(derive_input: ast::TokenTree) -> Result<FxHashSet<String>, ()> {
249 match (derive_input.left_delimiter_token(), derive_input.right_delimiter_token()) { 185 match (derive_input.left_delimiter_token(), derive_input.right_delimiter_token()) {
250 (Some(left_paren), Some(right_paren)) 186 (Some(left_paren), Some(right_paren))
251 if left_paren.kind() == SyntaxKind::L_PAREN 187 if left_paren.kind() == SyntaxKind::L_PAREN
@@ -282,7 +218,7 @@ fn parse_derive_input(derive_input: ast::TokenTree) -> Result<FxHashSet<String>,
282 218
283fn get_derive_names_in_scope(ctx: &CompletionContext) -> FxHashSet<String> { 219fn get_derive_names_in_scope(ctx: &CompletionContext) -> FxHashSet<String> {
284 let mut result = FxHashSet::default(); 220 let mut result = FxHashSet::default();
285 ctx.scope().process_all_names(&mut |name, scope_def| { 221 ctx.scope.process_all_names(&mut |name, scope_def| {
286 if let hir::ScopeDef::MacroDef(mac) = scope_def { 222 if let hir::ScopeDef::MacroDef(mac) = scope_def {
287 if mac.is_derive_macro() { 223 if mac.is_derive_macro() {
288 result.insert(name.to_string()); 224 result.insert(name.to_string());
@@ -299,6 +235,7 @@ struct DeriveCompletion {
299 235
300/// Standard Rust derives and the information about their dependencies 236/// Standard Rust derives and the information about their dependencies
301/// (the dependencies are needed so that the main derive don't break the compilation when added) 237/// (the dependencies are needed so that the main derive don't break the compilation when added)
238#[rustfmt::skip]
302const DEFAULT_DERIVE_COMPLETIONS: &[DeriveCompletion] = &[ 239const DEFAULT_DERIVE_COMPLETIONS: &[DeriveCompletion] = &[
303 DeriveCompletion { label: "Clone", dependencies: &[] }, 240 DeriveCompletion { label: "Clone", dependencies: &[] },
304 DeriveCompletion { label: "Copy", dependencies: &["Clone"] }, 241 DeriveCompletion { label: "Copy", dependencies: &["Clone"] },
@@ -311,679 +248,397 @@ const DEFAULT_DERIVE_COMPLETIONS: &[DeriveCompletion] = &[
311 DeriveCompletion { label: "Ord", dependencies: &["PartialOrd", "Eq", "PartialEq"] }, 248 DeriveCompletion { label: "Ord", dependencies: &["PartialOrd", "Eq", "PartialEq"] },
312]; 249];
313 250
251struct LintCompletion {
252 label: &'static str,
253 description: &'static str,
254}
255
256#[rustfmt::skip]
257const DEFAULT_LINT_COMPLETIONS: &[LintCompletion] = &[
258 LintCompletion { label: "absolute_paths_not_starting_with_crate", description: r#"fully qualified paths that start with a module name instead of `crate`, `self`, or an extern crate name"# },
259 LintCompletion { label: "anonymous_parameters", description: r#"detects anonymous parameters"# },
260 LintCompletion { label: "box_pointers", description: r#"use of owned (Box type) heap memory"# },
261 LintCompletion { label: "deprecated_in_future", description: r#"detects use of items that will be deprecated in a future version"# },
262 LintCompletion { label: "elided_lifetimes_in_paths", description: r#"hidden lifetime parameters in types are deprecated"# },
263 LintCompletion { label: "explicit_outlives_requirements", description: r#"outlives requirements can be inferred"# },
264 LintCompletion { label: "indirect_structural_match", description: r#"pattern with const indirectly referencing non-structural-match type"# },
265 LintCompletion { label: "keyword_idents", description: r#"detects edition keywords being used as an identifier"# },
266 LintCompletion { label: "macro_use_extern_crate", description: r#"the `#[macro_use]` attribute is now deprecated in favor of using macros via the module system"# },
267 LintCompletion { label: "meta_variable_misuse", description: r#"possible meta-variable misuse at macro definition"# },
268 LintCompletion { label: "missing_copy_implementations", description: r#"detects potentially-forgotten implementations of `Copy`"# },
269 LintCompletion { label: "missing_crate_level_docs", description: r#"detects crates with no crate-level documentation"# },
270 LintCompletion { label: "missing_debug_implementations", description: r#"detects missing implementations of Debug"# },
271 LintCompletion { label: "missing_docs", description: r#"detects missing documentation for public members"# },
272 LintCompletion { label: "missing_doc_code_examples", description: r#"detects publicly-exported items without code samples in their documentation"# },
273 LintCompletion { label: "non_ascii_idents", description: r#"detects non-ASCII identifiers"# },
274 LintCompletion { label: "private_doc_tests", description: r#"detects code samples in docs of private items not documented by rustdoc"# },
275 LintCompletion { label: "single_use_lifetimes", description: r#"detects lifetime parameters that are only used once"# },
276 LintCompletion { label: "trivial_casts", description: r#"detects trivial casts which could be removed"# },
277 LintCompletion { label: "trivial_numeric_casts", description: r#"detects trivial casts of numeric types which could be removed"# },
278 LintCompletion { label: "unaligned_references", description: r#"detects unaligned references to fields of packed structs"# },
279 LintCompletion { label: "unreachable_pub", description: r#"`pub` items not reachable from crate root"# },
280 LintCompletion { label: "unsafe_code", description: r#"usage of `unsafe` code"# },
281 LintCompletion { label: "unsafe_op_in_unsafe_fn", description: r#"unsafe operations in unsafe functions without an explicit unsafe block are deprecated"# },
282 LintCompletion { label: "unstable_features", description: r#"enabling unstable features (deprecated. do not use)"# },
283 LintCompletion { label: "unused_crate_dependencies", description: r#"crate dependencies that are never used"# },
284 LintCompletion { label: "unused_extern_crates", description: r#"extern crates that are never used"# },
285 LintCompletion { label: "unused_import_braces", description: r#"unnecessary braces around an imported item"# },
286 LintCompletion { label: "unused_lifetimes", description: r#"detects lifetime parameters that are never used"# },
287 LintCompletion { label: "unused_qualifications", description: r#"detects unnecessarily qualified names"# },
288 LintCompletion { label: "unused_results", description: r#"unused result of an expression in a statement"# },
289 LintCompletion { label: "variant_size_differences", description: r#"detects enums with widely varying variant sizes"# },
290 LintCompletion { label: "array_into_iter", description: r#"detects calling `into_iter` on arrays"# },
291 LintCompletion { label: "asm_sub_register", description: r#"using only a subset of a register for inline asm inputs"# },
292 LintCompletion { label: "bare_trait_objects", description: r#"suggest using `dyn Trait` for trait objects"# },
293 LintCompletion { label: "bindings_with_variant_name", description: r#"detects pattern bindings with the same name as one of the matched variants"# },
294 LintCompletion { label: "cenum_impl_drop_cast", description: r#"a C-like enum implementing Drop is cast"# },
295 LintCompletion { label: "clashing_extern_declarations", description: r#"detects when an extern fn has been declared with the same name but different types"# },
296 LintCompletion { label: "coherence_leak_check", description: r#"distinct impls distinguished only by the leak-check code"# },
297 LintCompletion { label: "confusable_idents", description: r#"detects visually confusable pairs between identifiers"# },
298 LintCompletion { label: "dead_code", description: r#"detect unused, unexported items"# },
299 LintCompletion { label: "deprecated", description: r#"detects use of deprecated items"# },
300 LintCompletion { label: "ellipsis_inclusive_range_patterns", description: r#"`...` range patterns are deprecated"# },
301 LintCompletion { label: "exported_private_dependencies", description: r#"public interface leaks type from a private dependency"# },
302 LintCompletion { label: "illegal_floating_point_literal_pattern", description: r#"floating-point literals cannot be used in patterns"# },
303 LintCompletion { label: "improper_ctypes", description: r#"proper use of libc types in foreign modules"# },
304 LintCompletion { label: "improper_ctypes_definitions", description: r#"proper use of libc types in foreign item definitions"# },
305 LintCompletion { label: "incomplete_features", description: r#"incomplete features that may function improperly in some or all cases"# },
306 LintCompletion { label: "inline_no_sanitize", description: r#"detects incompatible use of `#[inline(always)]` and `#[no_sanitize(...)]`"# },
307 LintCompletion { label: "intra_doc_link_resolution_failure", description: r#"failures in resolving intra-doc link targets"# },
308 LintCompletion { label: "invalid_codeblock_attributes", description: r#"codeblock attribute looks a lot like a known one"# },
309 LintCompletion { label: "invalid_value", description: r#"an invalid value is being created (such as a NULL reference)"# },
310 LintCompletion { label: "irrefutable_let_patterns", description: r#"detects irrefutable patterns in if-let and while-let statements"# },
311 LintCompletion { label: "late_bound_lifetime_arguments", description: r#"detects generic lifetime arguments in path segments with late bound lifetime parameters"# },
312 LintCompletion { label: "mixed_script_confusables", description: r#"detects Unicode scripts whose mixed script confusables codepoints are solely used"# },
313 LintCompletion { label: "mutable_borrow_reservation_conflict", description: r#"reservation of a two-phased borrow conflicts with other shared borrows"# },
314 LintCompletion { label: "non_camel_case_types", description: r#"types, variants, traits and type parameters should have camel case names"# },
315 LintCompletion { label: "non_shorthand_field_patterns", description: r#"using `Struct { x: x }` instead of `Struct { x }` in a pattern"# },
316 LintCompletion { label: "non_snake_case", description: r#"variables, methods, functions, lifetime parameters and modules should have snake case names"# },
317 LintCompletion { label: "non_upper_case_globals", description: r#"static constants should have uppercase identifiers"# },
318 LintCompletion { label: "no_mangle_generic_items", description: r#"generic items must be mangled"# },
319 LintCompletion { label: "overlapping_patterns", description: r#"detects overlapping patterns"# },
320 LintCompletion { label: "path_statements", description: r#"path statements with no effect"# },
321 LintCompletion { label: "private_in_public", description: r#"detect private items in public interfaces not caught by the old implementation"# },
322 LintCompletion { label: "proc_macro_derive_resolution_fallback", description: r#"detects proc macro derives using inaccessible names from parent modules"# },
323 LintCompletion { label: "redundant_semicolons", description: r#"detects unnecessary trailing semicolons"# },
324 LintCompletion { label: "renamed_and_removed_lints", description: r#"lints that have been renamed or removed"# },
325 LintCompletion { label: "safe_packed_borrows", description: r#"safe borrows of fields of packed structs were erroneously allowed"# },
326 LintCompletion { label: "stable_features", description: r#"stable features found in `#[feature]` directive"# },
327 LintCompletion { label: "trivial_bounds", description: r#"these bounds don't depend on an type parameters"# },
328 LintCompletion { label: "type_alias_bounds", description: r#"bounds in type aliases are not enforced"# },
329 LintCompletion { label: "tyvar_behind_raw_pointer", description: r#"raw pointer to an inference variable"# },
330 LintCompletion { label: "uncommon_codepoints", description: r#"detects uncommon Unicode codepoints in identifiers"# },
331 LintCompletion { label: "unconditional_recursion", description: r#"functions that cannot return without calling themselves"# },
332 LintCompletion { label: "unknown_lints", description: r#"unrecognized lint attribute"# },
333 LintCompletion { label: "unnameable_test_items", description: r#"detects an item that cannot be named being marked as `#[test_case]`"# },
334 LintCompletion { label: "unreachable_code", description: r#"detects unreachable code paths"# },
335 LintCompletion { label: "unreachable_patterns", description: r#"detects unreachable patterns"# },
336 LintCompletion { label: "unstable_name_collisions", description: r#"detects name collision with an existing but unstable method"# },
337 LintCompletion { label: "unused_allocation", description: r#"detects unnecessary allocations that can be eliminated"# },
338 LintCompletion { label: "unused_assignments", description: r#"detect assignments that will never be read"# },
339 LintCompletion { label: "unused_attributes", description: r#"detects attributes that were not used by the compiler"# },
340 LintCompletion { label: "unused_braces", description: r#"unnecessary braces around an expression"# },
341 LintCompletion { label: "unused_comparisons", description: r#"comparisons made useless by limits of the types involved"# },
342 LintCompletion { label: "unused_doc_comments", description: r#"detects doc comments that aren't used by rustdoc"# },
343 LintCompletion { label: "unused_features", description: r#"unused features found in crate-level `#[feature]` directives"# },
344 LintCompletion { label: "unused_imports", description: r#"imports that are never used"# },
345 LintCompletion { label: "unused_labels", description: r#"detects labels that are never used"# },
346 LintCompletion { label: "unused_macros", description: r#"detects macros that were not used"# },
347 LintCompletion { label: "unused_must_use", description: r#"unused result of a type flagged as `#[must_use]`"# },
348 LintCompletion { label: "unused_mut", description: r#"detect mut variables which don't need to be mutable"# },
349 LintCompletion { label: "unused_parens", description: r#"`if`, `match`, `while` and `return` do not need parentheses"# },
350 LintCompletion { label: "unused_unsafe", description: r#"unnecessary use of an `unsafe` block"# },
351 LintCompletion { label: "unused_variables", description: r#"detect variables which are not used in any way"# },
352 LintCompletion { label: "warnings", description: r#"mass-change the level for lints which produce warnings"# },
353 LintCompletion { label: "where_clauses_object_safety", description: r#"checks the object safety of where clauses"# },
354 LintCompletion { label: "while_true", description: r#"suggest using `loop { }` instead of `while true { }`"# },
355 LintCompletion { label: "ambiguous_associated_items", description: r#"ambiguous associated items"# },
356 LintCompletion { label: "arithmetic_overflow", description: r#"arithmetic operation overflows"# },
357 LintCompletion { label: "conflicting_repr_hints", description: r#"conflicts between `#[repr(..)]` hints that were previously accepted and used in practice"# },
358 LintCompletion { label: "const_err", description: r#"constant evaluation detected erroneous expression"# },
359 LintCompletion { label: "ill_formed_attribute_input", description: r#"ill-formed attribute inputs that were previously accepted and used in practice"# },
360 LintCompletion { label: "incomplete_include", description: r#"trailing content in included file"# },
361 LintCompletion { label: "invalid_type_param_default", description: r#"type parameter default erroneously allowed in invalid location"# },
362 LintCompletion { label: "macro_expanded_macro_exports_accessed_by_absolute_paths", description: r#"macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths"# },
363 LintCompletion { label: "missing_fragment_specifier", description: r#"detects missing fragment specifiers in unused `macro_rules!` patterns"# },
364 LintCompletion { label: "mutable_transmutes", description: r#"mutating transmuted &mut T from &T may cause undefined behavior"# },
365 LintCompletion { label: "no_mangle_const_items", description: r#"const items will not have their symbols exported"# },
366 LintCompletion { label: "order_dependent_trait_objects", description: r#"trait-object types were treated as different depending on marker-trait order"# },
367 LintCompletion { label: "overflowing_literals", description: r#"literal out of range for its type"# },
368 LintCompletion { label: "patterns_in_fns_without_body", description: r#"patterns in functions without body were erroneously allowed"# },
369 LintCompletion { label: "pub_use_of_private_extern_crate", description: r#"detect public re-exports of private extern crates"# },
370 LintCompletion { label: "soft_unstable", description: r#"a feature gate that doesn't break dependent crates"# },
371 LintCompletion { label: "unconditional_panic", description: r#"operation will cause a panic at runtime"# },
372 LintCompletion { label: "unknown_crate_types", description: r#"unknown crate type found in `#[crate_type]` directive"# },
373];
374
314#[cfg(test)] 375#[cfg(test)]
315mod tests { 376mod tests {
316 use crate::completion::{test_utils::do_completion, CompletionItem, CompletionKind}; 377 use expect::{expect, Expect};
317 use insta::assert_debug_snapshot;
318 378
319 fn do_attr_completion(code: &str) -> Vec<CompletionItem> { 379 use crate::completion::{test_utils::completion_list, CompletionKind};
320 do_completion(code, CompletionKind::Attribute) 380
381 fn check(ra_fixture: &str, expect: Expect) {
382 let actual = completion_list(ra_fixture, CompletionKind::Attribute);
383 expect.assert_eq(&actual);
321 } 384 }
322 385
323 #[test] 386 #[test]
324 fn empty_derive_completion() { 387 fn empty_derive_completion() {
325 assert_debug_snapshot!( 388 check(
326 do_attr_completion( 389 r#"
327 r" 390#[derive(<|>)]
328 #[derive(<|>)] 391struct Test {}
329 struct Test {} 392 "#,
330 ", 393 expect![[r#"
331 ), 394 at Clone
332 @r###" 395 at Copy, Clone
333 [ 396 at Debug
334 CompletionItem { 397 at Default
335 label: "Clone", 398 at Eq, PartialEq
336 source_range: 9..9, 399 at Hash
337 delete: 9..9, 400 at Ord, PartialOrd, Eq, PartialEq
338 insert: "Clone", 401 at PartialEq
339 kind: Attribute, 402 at PartialOrd, PartialEq
340 }, 403 "#]],
341 CompletionItem {
342 label: "Copy, Clone",
343 source_range: 9..9,
344 delete: 9..9,
345 insert: "Copy, Clone",
346 kind: Attribute,
347 },
348 CompletionItem {
349 label: "Debug",
350 source_range: 9..9,
351 delete: 9..9,
352 insert: "Debug",
353 kind: Attribute,
354 },
355 CompletionItem {
356 label: "Default",
357 source_range: 9..9,
358 delete: 9..9,
359 insert: "Default",
360 kind: Attribute,
361 },
362 CompletionItem {
363 label: "Eq, PartialEq",
364 source_range: 9..9,
365 delete: 9..9,
366 insert: "Eq, PartialEq",
367 kind: Attribute,
368 },
369 CompletionItem {
370 label: "Hash",
371 source_range: 9..9,
372 delete: 9..9,
373 insert: "Hash",
374 kind: Attribute,
375 },
376 CompletionItem {
377 label: "Ord, PartialOrd, Eq, PartialEq",
378 source_range: 9..9,
379 delete: 9..9,
380 insert: "Ord, PartialOrd, Eq, PartialEq",
381 kind: Attribute,
382 },
383 CompletionItem {
384 label: "PartialEq",
385 source_range: 9..9,
386 delete: 9..9,
387 insert: "PartialEq",
388 kind: Attribute,
389 },
390 CompletionItem {
391 label: "PartialOrd, PartialEq",
392 source_range: 9..9,
393 delete: 9..9,
394 insert: "PartialOrd, PartialEq",
395 kind: Attribute,
396 },
397 ]
398 "###
399 ); 404 );
400 } 405 }
401 406
402 #[test] 407 #[test]
408 fn empty_lint_completion() {
409 check(
410 r#"#[allow(<|>)]"#,
411 expect![[r#"
412 at absolute_paths_not_starting_with_crate fully qualified paths that start with a module name instead of `crate`, `self`, or an extern crate name
413 at ambiguous_associated_items ambiguous associated items
414 at anonymous_parameters detects anonymous parameters
415 at arithmetic_overflow arithmetic operation overflows
416 at array_into_iter detects calling `into_iter` on arrays
417 at asm_sub_register using only a subset of a register for inline asm inputs
418 at bare_trait_objects suggest using `dyn Trait` for trait objects
419 at bindings_with_variant_name detects pattern bindings with the same name as one of the matched variants
420 at box_pointers use of owned (Box type) heap memory
421 at cenum_impl_drop_cast a C-like enum implementing Drop is cast
422 at clashing_extern_declarations detects when an extern fn has been declared with the same name but different types
423 at coherence_leak_check distinct impls distinguished only by the leak-check code
424 at conflicting_repr_hints conflicts between `#[repr(..)]` hints that were previously accepted and used in practice
425 at confusable_idents detects visually confusable pairs between identifiers
426 at const_err constant evaluation detected erroneous expression
427 at dead_code detect unused, unexported items
428 at deprecated detects use of deprecated items
429 at deprecated_in_future detects use of items that will be deprecated in a future version
430 at elided_lifetimes_in_paths hidden lifetime parameters in types are deprecated
431 at ellipsis_inclusive_range_patterns `...` range patterns are deprecated
432 at explicit_outlives_requirements outlives requirements can be inferred
433 at exported_private_dependencies public interface leaks type from a private dependency
434 at ill_formed_attribute_input ill-formed attribute inputs that were previously accepted and used in practice
435 at illegal_floating_point_literal_pattern floating-point literals cannot be used in patterns
436 at improper_ctypes proper use of libc types in foreign modules
437 at improper_ctypes_definitions proper use of libc types in foreign item definitions
438 at incomplete_features incomplete features that may function improperly in some or all cases
439 at incomplete_include trailing content in included file
440 at indirect_structural_match pattern with const indirectly referencing non-structural-match type
441 at inline_no_sanitize detects incompatible use of `#[inline(always)]` and `#[no_sanitize(...)]`
442 at intra_doc_link_resolution_failure failures in resolving intra-doc link targets
443 at invalid_codeblock_attributes codeblock attribute looks a lot like a known one
444 at invalid_type_param_default type parameter default erroneously allowed in invalid location
445 at invalid_value an invalid value is being created (such as a NULL reference)
446 at irrefutable_let_patterns detects irrefutable patterns in if-let and while-let statements
447 at keyword_idents detects edition keywords being used as an identifier
448 at late_bound_lifetime_arguments detects generic lifetime arguments in path segments with late bound lifetime parameters
449 at macro_expanded_macro_exports_accessed_by_absolute_paths macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths
450 at macro_use_extern_crate the `#[macro_use]` attribute is now deprecated in favor of using macros via the module system
451 at meta_variable_misuse possible meta-variable misuse at macro definition
452 at missing_copy_implementations detects potentially-forgotten implementations of `Copy`
453 at missing_crate_level_docs detects crates with no crate-level documentation
454 at missing_debug_implementations detects missing implementations of Debug
455 at missing_doc_code_examples detects publicly-exported items without code samples in their documentation
456 at missing_docs detects missing documentation for public members
457 at missing_fragment_specifier detects missing fragment specifiers in unused `macro_rules!` patterns
458 at mixed_script_confusables detects Unicode scripts whose mixed script confusables codepoints are solely used
459 at mutable_borrow_reservation_conflict reservation of a two-phased borrow conflicts with other shared borrows
460 at mutable_transmutes mutating transmuted &mut T from &T may cause undefined behavior
461 at no_mangle_const_items const items will not have their symbols exported
462 at no_mangle_generic_items generic items must be mangled
463 at non_ascii_idents detects non-ASCII identifiers
464 at non_camel_case_types types, variants, traits and type parameters should have camel case names
465 at non_shorthand_field_patterns using `Struct { x: x }` instead of `Struct { x }` in a pattern
466 at non_snake_case variables, methods, functions, lifetime parameters and modules should have snake case names
467 at non_upper_case_globals static constants should have uppercase identifiers
468 at order_dependent_trait_objects trait-object types were treated as different depending on marker-trait order
469 at overflowing_literals literal out of range for its type
470 at overlapping_patterns detects overlapping patterns
471 at path_statements path statements with no effect
472 at patterns_in_fns_without_body patterns in functions without body were erroneously allowed
473 at private_doc_tests detects code samples in docs of private items not documented by rustdoc
474 at private_in_public detect private items in public interfaces not caught by the old implementation
475 at proc_macro_derive_resolution_fallback detects proc macro derives using inaccessible names from parent modules
476 at pub_use_of_private_extern_crate detect public re-exports of private extern crates
477 at redundant_semicolons detects unnecessary trailing semicolons
478 at renamed_and_removed_lints lints that have been renamed or removed
479 at safe_packed_borrows safe borrows of fields of packed structs were erroneously allowed
480 at single_use_lifetimes detects lifetime parameters that are only used once
481 at soft_unstable a feature gate that doesn't break dependent crates
482 at stable_features stable features found in `#[feature]` directive
483 at trivial_bounds these bounds don't depend on an type parameters
484 at trivial_casts detects trivial casts which could be removed
485 at trivial_numeric_casts detects trivial casts of numeric types which could be removed
486 at type_alias_bounds bounds in type aliases are not enforced
487 at tyvar_behind_raw_pointer raw pointer to an inference variable
488 at unaligned_references detects unaligned references to fields of packed structs
489 at uncommon_codepoints detects uncommon Unicode codepoints in identifiers
490 at unconditional_panic operation will cause a panic at runtime
491 at unconditional_recursion functions that cannot return without calling themselves
492 at unknown_crate_types unknown crate type found in `#[crate_type]` directive
493 at unknown_lints unrecognized lint attribute
494 at unnameable_test_items detects an item that cannot be named being marked as `#[test_case]`
495 at unreachable_code detects unreachable code paths
496 at unreachable_patterns detects unreachable patterns
497 at unreachable_pub `pub` items not reachable from crate root
498 at unsafe_code usage of `unsafe` code
499 at unsafe_op_in_unsafe_fn unsafe operations in unsafe functions without an explicit unsafe block are deprecated
500 at unstable_features enabling unstable features (deprecated. do not use)
501 at unstable_name_collisions detects name collision with an existing but unstable method
502 at unused_allocation detects unnecessary allocations that can be eliminated
503 at unused_assignments detect assignments that will never be read
504 at unused_attributes detects attributes that were not used by the compiler
505 at unused_braces unnecessary braces around an expression
506 at unused_comparisons comparisons made useless by limits of the types involved
507 at unused_crate_dependencies crate dependencies that are never used
508 at unused_doc_comments detects doc comments that aren't used by rustdoc
509 at unused_extern_crates extern crates that are never used
510 at unused_features unused features found in crate-level `#[feature]` directives
511 at unused_import_braces unnecessary braces around an imported item
512 at unused_imports imports that are never used
513 at unused_labels detects labels that are never used
514 at unused_lifetimes detects lifetime parameters that are never used
515 at unused_macros detects macros that were not used
516 at unused_must_use unused result of a type flagged as `#[must_use]`
517 at unused_mut detect mut variables which don't need to be mutable
518 at unused_parens `if`, `match`, `while` and `return` do not need parentheses
519 at unused_qualifications detects unnecessarily qualified names
520 at unused_results unused result of an expression in a statement
521 at unused_unsafe unnecessary use of an `unsafe` block
522 at unused_variables detect variables which are not used in any way
523 at variant_size_differences detects enums with widely varying variant sizes
524 at warnings mass-change the level for lints which produce warnings
525 at where_clauses_object_safety checks the object safety of where clauses
526 at while_true suggest using `loop { }` instead of `while true { }`
527 "#]],
528 )
529 }
530
531 #[test]
403 fn no_completion_for_incorrect_derive() { 532 fn no_completion_for_incorrect_derive() {
404 assert_debug_snapshot!( 533 check(
405 do_attr_completion( 534 r#"
406 r" 535#[derive{<|>)]
407 #[derive{<|>)] 536struct Test {}
408 struct Test {} 537"#,
409 ", 538 expect![[r#""#]],
410 ), 539 )
411 @"[]"
412 );
413 } 540 }
414 541
415 #[test] 542 #[test]
416 fn derive_with_input_completion() { 543 fn derive_with_input_completion() {
417 assert_debug_snapshot!( 544 check(
418 do_attr_completion( 545 r#"
419 r" 546#[derive(serde::Serialize, PartialEq, <|>)]
420 #[derive(serde::Serialize, PartialEq, <|>)] 547struct Test {}
421 struct Test {} 548"#,
422 ", 549 expect![[r#"
423 ), 550 at Clone
424 @r###" 551 at Copy, Clone
425 [ 552 at Debug
426 CompletionItem { 553 at Default
427 label: "Clone", 554 at Eq
428 source_range: 38..38, 555 at Hash
429 delete: 38..38, 556 at Ord, PartialOrd, Eq
430 insert: "Clone", 557 at PartialOrd
431 kind: Attribute, 558 "#]],
432 }, 559 )
433 CompletionItem {
434 label: "Copy, Clone",
435 source_range: 38..38,
436 delete: 38..38,
437 insert: "Copy, Clone",
438 kind: Attribute,
439 },
440 CompletionItem {
441 label: "Debug",
442 source_range: 38..38,
443 delete: 38..38,
444 insert: "Debug",
445 kind: Attribute,
446 },
447 CompletionItem {
448 label: "Default",
449 source_range: 38..38,
450 delete: 38..38,
451 insert: "Default",
452 kind: Attribute,
453 },
454 CompletionItem {
455 label: "Eq",
456 source_range: 38..38,
457 delete: 38..38,
458 insert: "Eq",
459 kind: Attribute,
460 },
461 CompletionItem {
462 label: "Hash",
463 source_range: 38..38,
464 delete: 38..38,
465 insert: "Hash",
466 kind: Attribute,
467 },
468 CompletionItem {
469 label: "Ord, PartialOrd, Eq",
470 source_range: 38..38,
471 delete: 38..38,
472 insert: "Ord, PartialOrd, Eq",
473 kind: Attribute,
474 },
475 CompletionItem {
476 label: "PartialOrd",
477 source_range: 38..38,
478 delete: 38..38,
479 insert: "PartialOrd",
480 kind: Attribute,
481 },
482 ]
483 "###
484 );
485 } 560 }
486 561
487 #[test] 562 #[test]
488 fn test_attribute_completion() { 563 fn test_attribute_completion() {
489 assert_debug_snapshot!( 564 check(
490 do_attr_completion( 565 r#"#[<|>]"#,
491 r" 566 expect![[r#"
492 #[<|>] 567 at allow(…)
493 ", 568 at cfg(…)
494 ), 569 at cfg_attr(…)
495 @r###" 570 at deny(…)
496 [ 571 at deprecated = "…"
497 CompletionItem { 572 at derive(…)
498 label: "allow(…)", 573 at doc = "…"
499 source_range: 2..2, 574 at forbid(…)
500 delete: 2..2, 575 at ignore = "…"
501 insert: "allow(${0:lint})", 576 at inline(…)
502 kind: Attribute, 577 at link
503 lookup: "allow", 578 at link_name = "…"
504 }, 579 at macro_export
505 CompletionItem { 580 at macro_use
506 label: "cfg(…)", 581 at must_use = "…"
507 source_range: 2..2, 582 at no_mangle
508 delete: 2..2, 583 at non_exhaustive
509 insert: "cfg(${0:predicate})", 584 at path = "…"
510 kind: Attribute, 585 at proc_macro
511 lookup: "cfg", 586 at proc_macro_attribute
512 }, 587 at proc_macro_derive(…)
513 CompletionItem { 588 at repr(…)
514 label: "cfg_attr(…)", 589 at should_panic(…)
515 source_range: 2..2, 590 at target_feature = "…"
516 delete: 2..2, 591 at test
517 insert: "cfg_attr(${1:predicate}, ${0:attr})", 592 at used
518 kind: Attribute, 593 at warn(…)
519 lookup: "cfg_attr", 594 "#]],
520 }, 595 )
521 CompletionItem {
522 label: "deny(…)",
523 source_range: 2..2,
524 delete: 2..2,
525 insert: "deny(${0:lint})",
526 kind: Attribute,
527 lookup: "deny",
528 },
529 CompletionItem {
530 label: "deprecated = \"…\"",
531 source_range: 2..2,
532 delete: 2..2,
533 insert: "deprecated = \"${0:reason}\"",
534 kind: Attribute,
535 lookup: "deprecated",
536 },
537 CompletionItem {
538 label: "derive(…)",
539 source_range: 2..2,
540 delete: 2..2,
541 insert: "derive(${0:Debug})",
542 kind: Attribute,
543 lookup: "derive",
544 },
545 CompletionItem {
546 label: "doc = \"…\"",
547 source_range: 2..2,
548 delete: 2..2,
549 insert: "doc = \"${0:docs}\"",
550 kind: Attribute,
551 lookup: "doc",
552 },
553 CompletionItem {
554 label: "forbid(…)",
555 source_range: 2..2,
556 delete: 2..2,
557 insert: "forbid(${0:lint})",
558 kind: Attribute,
559 lookup: "forbid",
560 },
561 CompletionItem {
562 label: "ignore(…)",
563 source_range: 2..2,
564 delete: 2..2,
565 insert: "ignore(${0:lint})",
566 kind: Attribute,
567 lookup: "ignore",
568 },
569 CompletionItem {
570 label: "inline(…)",
571 source_range: 2..2,
572 delete: 2..2,
573 insert: "inline(${0:lint})",
574 kind: Attribute,
575 lookup: "inline",
576 },
577 CompletionItem {
578 label: "link",
579 source_range: 2..2,
580 delete: 2..2,
581 insert: "link",
582 kind: Attribute,
583 },
584 CompletionItem {
585 label: "link_name = \"…\"",
586 source_range: 2..2,
587 delete: 2..2,
588 insert: "link_name = \"${0:symbol_name}\"",
589 kind: Attribute,
590 lookup: "link_name",
591 },
592 CompletionItem {
593 label: "macro_export",
594 source_range: 2..2,
595 delete: 2..2,
596 insert: "macro_export",
597 kind: Attribute,
598 },
599 CompletionItem {
600 label: "macro_use",
601 source_range: 2..2,
602 delete: 2..2,
603 insert: "macro_use",
604 kind: Attribute,
605 },
606 CompletionItem {
607 label: "must_use = \"…\"",
608 source_range: 2..2,
609 delete: 2..2,
610 insert: "must_use = \"${0:reason}\"",
611 kind: Attribute,
612 lookup: "must_use",
613 },
614 CompletionItem {
615 label: "no_mangle",
616 source_range: 2..2,
617 delete: 2..2,
618 insert: "no_mangle",
619 kind: Attribute,
620 },
621 CompletionItem {
622 label: "non_exhaustive",
623 source_range: 2..2,
624 delete: 2..2,
625 insert: "non_exhaustive",
626 kind: Attribute,
627 },
628 CompletionItem {
629 label: "path = \"…\"",
630 source_range: 2..2,
631 delete: 2..2,
632 insert: "path =\"${0:path}\"",
633 kind: Attribute,
634 lookup: "path",
635 },
636 CompletionItem {
637 label: "proc_macro",
638 source_range: 2..2,
639 delete: 2..2,
640 insert: "proc_macro",
641 kind: Attribute,
642 },
643 CompletionItem {
644 label: "proc_macro_attribute",
645 source_range: 2..2,
646 delete: 2..2,
647 insert: "proc_macro_attribute",
648 kind: Attribute,
649 },
650 CompletionItem {
651 label: "proc_macro_derive(…)",
652 source_range: 2..2,
653 delete: 2..2,
654 insert: "proc_macro_derive(${0:Trait})",
655 kind: Attribute,
656 lookup: "proc_macro_derive",
657 },
658 CompletionItem {
659 label: "repr(…)",
660 source_range: 2..2,
661 delete: 2..2,
662 insert: "repr(${0:C})",
663 kind: Attribute,
664 lookup: "repr",
665 },
666 CompletionItem {
667 label: "should_panic(…)",
668 source_range: 2..2,
669 delete: 2..2,
670 insert: "should_panic(expected = \"${0:reason}\")",
671 kind: Attribute,
672 lookup: "should_panic",
673 },
674 CompletionItem {
675 label: "target_feature = \"…\"",
676 source_range: 2..2,
677 delete: 2..2,
678 insert: "target_feature = \"${0:feature}\"",
679 kind: Attribute,
680 lookup: "target_feature",
681 },
682 CompletionItem {
683 label: "test",
684 source_range: 2..2,
685 delete: 2..2,
686 insert: "test",
687 kind: Attribute,
688 },
689 CompletionItem {
690 label: "used",
691 source_range: 2..2,
692 delete: 2..2,
693 insert: "used",
694 kind: Attribute,
695 },
696 CompletionItem {
697 label: "warn(…)",
698 source_range: 2..2,
699 delete: 2..2,
700 insert: "warn(${0:lint})",
701 kind: Attribute,
702 lookup: "warn",
703 },
704 ]
705 "###
706 );
707 } 596 }
708 597
709 #[test] 598 #[test]
710 fn test_attribute_completion_inside_nested_attr() { 599 fn test_attribute_completion_inside_nested_attr() {
711 assert_debug_snapshot!( 600 check(r#"#[cfg(<|>)]"#, expect![[]])
712 do_attr_completion(
713 r"
714 #[allow(<|>)]
715 ",
716 ),
717 @r###"
718 []
719 "###
720 );
721 } 601 }
722 602
723 #[test] 603 #[test]
724 fn test_inner_attribute_completion() { 604 fn test_inner_attribute_completion() {
725 assert_debug_snapshot!( 605 check(
726 do_attr_completion( 606 r"#![<|>]",
727 r" 607 expect![[r#"
728 #![<|>] 608 at allow(…)
729 ", 609 at cfg(…)
730 ), 610 at cfg_attr(…)
731 @r###" 611 at deny(…)
732 [ 612 at deprecated = "…"
733 CompletionItem { 613 at derive(…)
734 label: "allow(…)", 614 at doc = "…"
735 source_range: 3..3, 615 at feature(…)
736 delete: 3..3, 616 at forbid(…)
737 insert: "allow(${0:lint})", 617 at global_allocator
738 kind: Attribute, 618 at ignore = "…"
739 lookup: "allow", 619 at inline(…)
740 }, 620 at link
741 CompletionItem { 621 at link_name = "…"
742 label: "cfg(…)", 622 at macro_export
743 source_range: 3..3, 623 at macro_use
744 delete: 3..3, 624 at must_use = "…"
745 insert: "cfg(${0:predicate})", 625 at no_mangle
746 kind: Attribute, 626 at no_std
747 lookup: "cfg", 627 at non_exhaustive
748 }, 628 at panic_handler
749 CompletionItem { 629 at path = "…"
750 label: "cfg_attr(…)", 630 at proc_macro
751 source_range: 3..3, 631 at proc_macro_attribute
752 delete: 3..3, 632 at proc_macro_derive(…)
753 insert: "cfg_attr(${1:predicate}, ${0:attr})", 633 at recursion_limit = …
754 kind: Attribute, 634 at repr(…)
755 lookup: "cfg_attr", 635 at should_panic(…)
756 }, 636 at target_feature = "…"
757 CompletionItem { 637 at test
758 label: "deny(…)", 638 at used
759 source_range: 3..3, 639 at warn(…)
760 delete: 3..3, 640 at windows_subsystem = "…"
761 insert: "deny(${0:lint})", 641 "#]],
762 kind: Attribute,
763 lookup: "deny",
764 },
765 CompletionItem {
766 label: "deprecated = \"…\"",
767 source_range: 3..3,
768 delete: 3..3,
769 insert: "deprecated = \"${0:reason}\"",
770 kind: Attribute,
771 lookup: "deprecated",
772 },
773 CompletionItem {
774 label: "derive(…)",
775 source_range: 3..3,
776 delete: 3..3,
777 insert: "derive(${0:Debug})",
778 kind: Attribute,
779 lookup: "derive",
780 },
781 CompletionItem {
782 label: "doc = \"…\"",
783 source_range: 3..3,
784 delete: 3..3,
785 insert: "doc = \"${0:docs}\"",
786 kind: Attribute,
787 lookup: "doc",
788 },
789 CompletionItem {
790 label: "feature(…)",
791 source_range: 3..3,
792 delete: 3..3,
793 insert: "feature(${0:flag})",
794 kind: Attribute,
795 lookup: "feature",
796 },
797 CompletionItem {
798 label: "forbid(…)",
799 source_range: 3..3,
800 delete: 3..3,
801 insert: "forbid(${0:lint})",
802 kind: Attribute,
803 lookup: "forbid",
804 },
805 CompletionItem {
806 label: "global_allocator",
807 source_range: 3..3,
808 delete: 3..3,
809 insert: "global_allocator",
810 kind: Attribute,
811 },
812 CompletionItem {
813 label: "ignore(…)",
814 source_range: 3..3,
815 delete: 3..3,
816 insert: "ignore(${0:lint})",
817 kind: Attribute,
818 lookup: "ignore",
819 },
820 CompletionItem {
821 label: "inline(…)",
822 source_range: 3..3,
823 delete: 3..3,
824 insert: "inline(${0:lint})",
825 kind: Attribute,
826 lookup: "inline",
827 },
828 CompletionItem {
829 label: "link",
830 source_range: 3..3,
831 delete: 3..3,
832 insert: "link",
833 kind: Attribute,
834 },
835 CompletionItem {
836 label: "link_name = \"…\"",
837 source_range: 3..3,
838 delete: 3..3,
839 insert: "link_name = \"${0:symbol_name}\"",
840 kind: Attribute,
841 lookup: "link_name",
842 },
843 CompletionItem {
844 label: "macro_export",
845 source_range: 3..3,
846 delete: 3..3,
847 insert: "macro_export",
848 kind: Attribute,
849 },
850 CompletionItem {
851 label: "macro_use",
852 source_range: 3..3,
853 delete: 3..3,
854 insert: "macro_use",
855 kind: Attribute,
856 },
857 CompletionItem {
858 label: "must_use = \"…\"",
859 source_range: 3..3,
860 delete: 3..3,
861 insert: "must_use = \"${0:reason}\"",
862 kind: Attribute,
863 lookup: "must_use",
864 },
865 CompletionItem {
866 label: "no_mangle",
867 source_range: 3..3,
868 delete: 3..3,
869 insert: "no_mangle",
870 kind: Attribute,
871 },
872 CompletionItem {
873 label: "no_std",
874 source_range: 3..3,
875 delete: 3..3,
876 insert: "no_std",
877 kind: Attribute,
878 },
879 CompletionItem {
880 label: "non_exhaustive",
881 source_range: 3..3,
882 delete: 3..3,
883 insert: "non_exhaustive",
884 kind: Attribute,
885 },
886 CompletionItem {
887 label: "panic_handler",
888 source_range: 3..3,
889 delete: 3..3,
890 insert: "panic_handler",
891 kind: Attribute,
892 },
893 CompletionItem {
894 label: "path = \"…\"",
895 source_range: 3..3,
896 delete: 3..3,
897 insert: "path =\"${0:path}\"",
898 kind: Attribute,
899 lookup: "path",
900 },
901 CompletionItem {
902 label: "proc_macro",
903 source_range: 3..3,
904 delete: 3..3,
905 insert: "proc_macro",
906 kind: Attribute,
907 },
908 CompletionItem {
909 label: "proc_macro_attribute",
910 source_range: 3..3,
911 delete: 3..3,
912 insert: "proc_macro_attribute",
913 kind: Attribute,
914 },
915 CompletionItem {
916 label: "proc_macro_derive(…)",
917 source_range: 3..3,
918 delete: 3..3,
919 insert: "proc_macro_derive(${0:Trait})",
920 kind: Attribute,
921 lookup: "proc_macro_derive",
922 },
923 CompletionItem {
924 label: "recursion_limit = …",
925 source_range: 3..3,
926 delete: 3..3,
927 insert: "recursion_limit = ${0:128}",
928 kind: Attribute,
929 lookup: "recursion_limit",
930 },
931 CompletionItem {
932 label: "repr(…)",
933 source_range: 3..3,
934 delete: 3..3,
935 insert: "repr(${0:C})",
936 kind: Attribute,
937 lookup: "repr",
938 },
939 CompletionItem {
940 label: "should_panic(…)",
941 source_range: 3..3,
942 delete: 3..3,
943 insert: "should_panic(expected = \"${0:reason}\")",
944 kind: Attribute,
945 lookup: "should_panic",
946 },
947 CompletionItem {
948 label: "target_feature = \"…\"",
949 source_range: 3..3,
950 delete: 3..3,
951 insert: "target_feature = \"${0:feature}\"",
952 kind: Attribute,
953 lookup: "target_feature",
954 },
955 CompletionItem {
956 label: "test",
957 source_range: 3..3,
958 delete: 3..3,
959 insert: "test",
960 kind: Attribute,
961 },
962 CompletionItem {
963 label: "used",
964 source_range: 3..3,
965 delete: 3..3,
966 insert: "used",
967 kind: Attribute,
968 },
969 CompletionItem {
970 label: "warn(…)",
971 source_range: 3..3,
972 delete: 3..3,
973 insert: "warn(${0:lint})",
974 kind: Attribute,
975 lookup: "warn",
976 },
977 CompletionItem {
978 label: "windows_subsystem = \"…\"",
979 source_range: 3..3,
980 delete: 3..3,
981 insert: "windows_subsystem = \"${0:subsystem}\"",
982 kind: Attribute,
983 lookup: "windows_subsystem",
984 },
985 ]
986 "###
987 ); 642 );
988 } 643 }
989} 644}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 04:32:10 +0000