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-rw-r--r--.gitattributes2
-rw-r--r--.github/workflows/ci.yaml4
-rw-r--r--Cargo.lock671
-rw-r--r--README.md2
-rw-r--r--bors.toml3
-rw-r--r--crates/arena/Cargo.toml9
-rw-r--r--crates/arena/src/lib.rs (renamed from crates/ra_arena/src/lib.rs)0
-rw-r--r--crates/arena/src/map.rs (renamed from crates/ra_arena/src/map.rs)0
-rw-r--r--crates/assists/Cargo.toml23
-rw-r--r--crates/assists/src/assist_config.rs (renamed from crates/ra_assists/src/assist_config.rs)0
-rw-r--r--crates/assists/src/assist_context.rs291
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-rw-r--r--crates/assists/src/handlers/add_missing_impl_members.rs711
-rw-r--r--crates/assists/src/handlers/add_turbo_fish.rs164
-rw-r--r--crates/assists/src/handlers/apply_demorgan.rs93
-rw-r--r--crates/assists/src/handlers/auto_import.rs1088
-rw-r--r--crates/assists/src/handlers/change_return_type_to_result.rs998
-rw-r--r--crates/assists/src/handlers/change_visibility.rs200
-rw-r--r--crates/assists/src/handlers/early_return.rs515
-rw-r--r--crates/assists/src/handlers/expand_glob_import.rs391
-rw-r--r--crates/assists/src/handlers/extract_struct_from_enum_variant.rs317
-rw-r--r--crates/assists/src/handlers/extract_variable.rs588
-rw-r--r--crates/assists/src/handlers/fill_match_arms.rs747
-rw-r--r--crates/assists/src/handlers/fix_visibility.rs607
-rw-r--r--crates/assists/src/handlers/flip_binexpr.rs142
-rw-r--r--crates/assists/src/handlers/flip_comma.rs84
-rw-r--r--crates/assists/src/handlers/flip_trait_bound.rs121
-rw-r--r--crates/assists/src/handlers/generate_derive.rs132
-rw-r--r--crates/assists/src/handlers/generate_from_impl_for_enum.rs200
-rw-r--r--crates/assists/src/handlers/generate_function.rs1058
-rw-r--r--crates/assists/src/handlers/generate_impl.rs110
-rw-r--r--crates/assists/src/handlers/generate_new.rs421
-rw-r--r--crates/assists/src/handlers/inline_local_variable.rs695
-rw-r--r--crates/assists/src/handlers/introduce_named_lifetime.rs318
-rw-r--r--crates/assists/src/handlers/invert_if.rs109
-rw-r--r--crates/assists/src/handlers/merge_imports.rs321
-rw-r--r--crates/assists/src/handlers/merge_match_arms.rs248
-rw-r--r--crates/assists/src/handlers/move_bounds.rs152
-rw-r--r--crates/assists/src/handlers/move_guard.rs293
-rw-r--r--crates/assists/src/handlers/raw_string.rs504
-rw-r--r--crates/assists/src/handlers/remove_dbg.rs205
-rw-r--r--crates/assists/src/handlers/remove_mut.rs37
-rw-r--r--crates/assists/src/handlers/reorder_fields.rs220
-rw-r--r--crates/assists/src/handlers/replace_if_let_with_match.rs257
-rw-r--r--crates/assists/src/handlers/replace_let_with_if_let.rs100
-rw-r--r--crates/assists/src/handlers/replace_qualified_name_with_use.rs688
-rw-r--r--crates/assists/src/handlers/replace_unwrap_with_match.rs187
-rw-r--r--crates/assists/src/handlers/split_import.rs79
-rw-r--r--crates/assists/src/handlers/unwrap_block.rs517
-rw-r--r--crates/assists/src/lib.rs241
-rw-r--r--crates/assists/src/tests.rs179
-rw-r--r--crates/assists/src/tests/generated.rs892
-rw-r--r--crates/assists/src/utils.rs313
-rw-r--r--crates/assists/src/utils/insert_use.rs547
-rw-r--r--crates/base_db/Cargo.toml21
-rw-r--r--crates/base_db/src/cancellation.rs (renamed from crates/ra_db/src/cancellation.rs)0
-rw-r--r--crates/base_db/src/fixture.rs228
-rw-r--r--crates/base_db/src/input.rs453
-rw-r--r--crates/base_db/src/lib.rs167
-rw-r--r--crates/cfg/Cargo.toml18
-rw-r--r--crates/cfg/src/cfg_expr.rs133
-rw-r--r--crates/cfg/src/lib.rs51
-rw-r--r--crates/expect/Cargo.toml5
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-rw-r--r--crates/flycheck/src/lib.rs2
-rw-r--r--crates/hir/Cargo.toml24
-rw-r--r--crates/hir/src/code_model.rs1719
-rw-r--r--crates/hir/src/db.rs (renamed from crates/ra_hir/src/db.rs)0
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-rw-r--r--crates/hir_def/Cargo.toml35
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-rw-r--r--crates/hir_def/src/keys.rs58
-rw-r--r--crates/hir_def/src/lang_item.rs174
-rw-r--r--crates/hir_def/src/lib.rs541
-rw-r--r--crates/hir_def/src/nameres.rs326
-rw-r--r--crates/hir_def/src/nameres/collector.rs1279
-rw-r--r--crates/hir_def/src/nameres/mod_resolution.rs139
-rw-r--r--crates/hir_def/src/nameres/path_resolution.rs330
-rw-r--r--crates/hir_def/src/nameres/tests.rs690
-rw-r--r--crates/hir_def/src/nameres/tests/globs.rs (renamed from crates/ra_hir_def/src/nameres/tests/globs.rs)0
-rw-r--r--crates/hir_def/src/nameres/tests/incremental.rs101
-rw-r--r--crates/hir_def/src/nameres/tests/macros.rs (renamed from crates/ra_hir_def/src/nameres/tests/macros.rs)0
-rw-r--r--crates/hir_def/src/nameres/tests/mod_resolution.rs796
-rw-r--r--crates/hir_def/src/nameres/tests/primitives.rs (renamed from crates/ra_hir_def/src/nameres/tests/primitives.rs)0
-rw-r--r--crates/hir_def/src/path.rs351
-rw-r--r--crates/hir_def/src/path/lower.rs215
-rw-r--r--crates/hir_def/src/path/lower/lower_use.rs120
-rw-r--r--crates/hir_def/src/per_ns.rs (renamed from crates/ra_hir_def/src/per_ns.rs)0
-rw-r--r--crates/hir_def/src/resolver.rs713
-rw-r--r--crates/hir_def/src/src.rs43
-rw-r--r--crates/hir_def/src/test_db.rs101
-rw-r--r--crates/hir_def/src/trace.rs51
-rw-r--r--crates/hir_def/src/type_ref.rs245
-rw-r--r--crates/hir_def/src/visibility.rs171
-rw-r--r--crates/hir_expand/Cargo.toml23
-rw-r--r--crates/hir_expand/src/ast_id_map.rs119
-rw-r--r--crates/hir_expand/src/builtin_derive.rs361
-rw-r--r--crates/hir_expand/src/builtin_macro.rs649
-rw-r--r--crates/hir_expand/src/db.rs403
-rw-r--r--crates/hir_expand/src/diagnostics.rs96
-rw-r--r--crates/hir_expand/src/eager.rs144
-rw-r--r--crates/hir_expand/src/hygiene.rs66
-rw-r--r--crates/hir_expand/src/lib.rs453
-rw-r--r--crates/hir_expand/src/name.rs230
-rw-r--r--crates/hir_expand/src/proc_macro.rs143
-rw-r--r--crates/hir_expand/src/quote.rs (renamed from crates/ra_hir_expand/src/quote.rs)0
-rw-r--r--crates/hir_expand/src/test_db.rs49
-rw-r--r--crates/hir_ty/Cargo.toml37
-rw-r--r--crates/hir_ty/src/autoderef.rs131
-rw-r--r--crates/hir_ty/src/db.rs158
-rw-r--r--crates/hir_ty/src/diagnostics.rs469
-rw-r--r--crates/hir_ty/src/diagnostics/expr.rs569
-rw-r--r--crates/hir_ty/src/diagnostics/match_check.rs1421
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-rw-r--r--crates/hir_ty/src/display.rs632
-rw-r--r--crates/hir_ty/src/infer.rs802
-rw-r--r--crates/hir_ty/src/infer/coerce.rs (renamed from crates/ra_hir_ty/src/infer/coerce.rs)0
-rw-r--r--crates/hir_ty/src/infer/expr.rs873
-rw-r--r--crates/hir_ty/src/infer/pat.rs (renamed from crates/ra_hir_ty/src/infer/pat.rs)0
-rw-r--r--crates/hir_ty/src/infer/path.rs (renamed from crates/ra_hir_ty/src/infer/path.rs)0
-rw-r--r--crates/hir_ty/src/infer/unify.rs (renamed from crates/ra_hir_ty/src/infer/unify.rs)0
-rw-r--r--crates/hir_ty/src/lib.rs1078
-rw-r--r--crates/hir_ty/src/lower.rs1242
-rw-r--r--crates/hir_ty/src/method_resolution.rs769
-rw-r--r--crates/hir_ty/src/op.rs (renamed from crates/ra_hir_ty/src/op.rs)0
-rw-r--r--crates/hir_ty/src/primitive.rs (renamed from crates/ra_hir_ty/src/primitive.rs)0
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-rw-r--r--crates/hir_ty/src/tests.rs359
-rw-r--r--crates/hir_ty/src/tests/coercion.rs (renamed from crates/ra_hir_ty/src/tests/coercion.rs)0
-rw-r--r--crates/hir_ty/src/tests/display_source_code.rs (renamed from crates/ra_hir_ty/src/tests/display_source_code.rs)0
-rw-r--r--crates/hir_ty/src/tests/macros.rs787
-rw-r--r--crates/hir_ty/src/tests/method_resolution.rs (renamed from crates/ra_hir_ty/src/tests/method_resolution.rs)0
-rw-r--r--crates/hir_ty/src/tests/never_type.rs (renamed from crates/ra_hir_ty/src/tests/never_type.rs)0
-rw-r--r--crates/hir_ty/src/tests/patterns.rs (renamed from crates/ra_hir_ty/src/tests/patterns.rs)0
-rw-r--r--crates/hir_ty/src/tests/regression.rs (renamed from crates/ra_hir_ty/src/tests/regression.rs)0
-rw-r--r--crates/hir_ty/src/tests/simple.rs2218
-rw-r--r--crates/hir_ty/src/tests/traits.rs (renamed from crates/ra_hir_ty/src/tests/traits.rs)0
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-rw-r--r--crates/hir_ty/src/traits/chalk.rs586
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-rw-r--r--crates/ide/Cargo.toml35
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-rw-r--r--crates/syntax/test_data/parser/ok/0063_trait_fn_patterns.rast (renamed from crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0063_trait_fn_patterns.rs (renamed from crates/ra_syntax/test_data/parser/ok/0063_trait_fn_patterns.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0063_variadic_fun.rast (renamed from crates/ra_syntax/test_data/parser/ok/0063_variadic_fun.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0063_variadic_fun.rs (renamed from crates/ra_syntax/test_data/parser/ok/0063_variadic_fun.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0064_impl_fn_params.rast (renamed from crates/ra_syntax/test_data/parser/ok/0064_impl_fn_params.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0064_impl_fn_params.rs (renamed from crates/ra_syntax/test_data/parser/ok/0064_impl_fn_params.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0065_comment_newline.rast (renamed from crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0065_comment_newline.rs (renamed from crates/ra_syntax/test_data/parser/ok/0065_comment_newline.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast (renamed from crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rs (renamed from crates/ra_syntax/test_data/parser/ok/0065_plus_after_fn_trait_bound.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0066_default_modifier.rast (renamed from crates/ra_syntax/test_data/parser/ok/0066_default_modifier.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0066_default_modifier.rs (renamed from crates/ra_syntax/test_data/parser/ok/0066_default_modifier.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0067_where_for_pred.rast (renamed from crates/ra_syntax/test_data/parser/ok/0067_where_for_pred.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0067_where_for_pred.rs (renamed from crates/ra_syntax/test_data/parser/ok/0067_where_for_pred.rs)0
-rw-r--r--crates/syntax/test_data/parser/ok/0068_item_modifiers.rast (renamed from crates/ra_syntax/test_data/parser/ok/0068_item_modifiers.rast)0
-rw-r--r--crates/syntax/test_data/parser/ok/0068_item_modifiers.rs (renamed from crates/ra_syntax/test_data/parser/ok/0068_item_modifiers.rs)0
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0000.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0000.rs)0
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0001.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0001.rs)0
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0002.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0002.rs)0
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0003.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0003.rs)bin8 -> 8 bytes
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0004.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0004.rs)0
-rw-r--r--crates/syntax/test_data/reparse/fuzz-failures/0005.rs (renamed from crates/ra_syntax/test_data/reparse/fuzz-failures/0005.rs)0
-rw-r--r--crates/test_utils/Cargo.toml7
-rw-r--r--crates/text_edit/Cargo.toml12
-rw-r--r--crates/text_edit/src/lib.rs186
-rw-r--r--crates/toolchain/Cargo.toml12
-rw-r--r--crates/toolchain/src/lib.rs66
-rw-r--r--crates/tt/Cargo.toml16
-rw-r--r--crates/tt/src/buffer.rs (renamed from crates/ra_tt/src/buffer.rs)0
-rw-r--r--crates/tt/src/lib.rs (renamed from crates/ra_tt/src/lib.rs)0
-rw-r--r--crates/vfs-notify/Cargo.toml4
-rw-r--r--crates/vfs/Cargo.toml4
-rw-r--r--docs/dev/README.md14
-rw-r--r--docs/dev/architecture.md24
-rw-r--r--docs/dev/guide.md66
-rw-r--r--docs/dev/style.md4
-rw-r--r--docs/dev/syntax.md2
-rw-r--r--editors/code/src/toolchain.ts4
-rw-r--r--xtask/src/codegen.rs16
-rw-r--r--xtask/src/codegen/gen_syntax.rs2
-rw-r--r--xtask/src/lib.rs4
-rw-r--r--xtask/tests/tidy.rs20
1402 files changed, 96443 insertions, 96474 deletions
diff --git a/.gitattributes b/.gitattributes
index 4cd50e481..7c2f752d6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,5 +1,5 @@
1* text=auto eol=lf 1* text=auto eol=lf
2crates/ra_syntax/test_data/** -text eof=LF 2crates/syntax/test_data/** -text eof=LF
3# Older git versions try to fix line endings on images, this prevents it. 3# Older git versions try to fix line endings on images, this prevents it.
4*.png binary 4*.png binary
5*.jpg binary 5*.jpg binary
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f46fb8fec..2deb009ce 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -25,7 +25,7 @@ jobs:
25 strategy: 25 strategy:
26 fail-fast: false 26 fail-fast: false
27 matrix: 27 matrix:
28 os: [ubuntu-latest, windows-latest, macos-latest] 28 os: [ubuntu-latest, windows-latest] #, macos-latest]
29 29
30 steps: 30 steps:
31 - name: Checkout repository 31 - name: Checkout repository
@@ -115,7 +115,7 @@ jobs:
115 strategy: 115 strategy:
116 fail-fast: false 116 fail-fast: false
117 matrix: 117 matrix:
118 os: [ubuntu-latest, windows-latest, macos-latest] 118 os: [ubuntu-latest, windows-latest]
119 119
120 runs-on: ${{ matrix.os }} 120 runs-on: ${{ matrix.os }}
121 121
diff --git a/Cargo.lock b/Cargo.lock
index 265889162..2386c8f3a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,15 +16,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
16checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e" 16checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
17 17
18[[package]] 18[[package]]
19name = "aho-corasick"
20version = "0.7.13"
21source = "registry+https://github.com/rust-lang/crates.io-index"
22checksum = "043164d8ba5c4c3035fec9bbee8647c0261d788f3474306f93bb65901cae0e86"
23dependencies = [
24 "memchr",
25]
26
27[[package]]
28name = "ansi_term" 19name = "ansi_term"
29version = "0.12.1" 20version = "0.12.1"
30source = "registry+https://github.com/rust-lang/crates.io-index" 21source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -46,12 +37,33 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
46checksum = "33954243bd79057c2de7338850b85983a44588021f8a5fee574a8888c6de4344" 37checksum = "33954243bd79057c2de7338850b85983a44588021f8a5fee574a8888c6de4344"
47 38
48[[package]] 39[[package]]
40name = "arena"
41version = "0.0.0"
42
43[[package]]
49name = "arrayvec" 44name = "arrayvec"
50version = "0.5.1" 45version = "0.5.1"
51source = "registry+https://github.com/rust-lang/crates.io-index" 46source = "registry+https://github.com/rust-lang/crates.io-index"
52checksum = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8" 47checksum = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
53 48
54[[package]] 49[[package]]
50name = "assists"
51version = "0.0.0"
52dependencies = [
53 "base_db",
54 "either",
55 "hir",
56 "ide_db",
57 "itertools",
58 "profile",
59 "rustc-hash",
60 "stdx",
61 "syntax",
62 "test_utils",
63 "text_edit",
64]
65
66[[package]]
55name = "atty" 67name = "atty"
56version = "0.2.14" 68version = "0.2.14"
57source = "registry+https://github.com/rust-lang/crates.io-index" 69source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -89,6 +101,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
89checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff" 101checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
90 102
91[[package]] 103[[package]]
104name = "base_db"
105version = "0.0.0"
106dependencies = [
107 "cfg",
108 "profile",
109 "rustc-hash",
110 "salsa",
111 "stdx",
112 "syntax",
113 "test_utils",
114 "tt",
115 "vfs",
116]
117
118[[package]]
92name = "bitflags" 119name = "bitflags"
93version = "1.2.1" 120version = "1.2.1"
94source = "registry+https://github.com/rust-lang/crates.io-index" 121source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -118,6 +145,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
118checksum = "f9a06fb2e53271d7c279ec1efea6ab691c35a2ae67ec0d91d7acec0caf13b518" 145checksum = "f9a06fb2e53271d7c279ec1efea6ab691c35a2ae67ec0d91d7acec0caf13b518"
119 146
120[[package]] 147[[package]]
148name = "cfg"
149version = "0.0.0"
150dependencies = [
151 "mbe",
152 "rustc-hash",
153 "syntax",
154 "tt",
155]
156
157[[package]]
121name = "cfg-if" 158name = "cfg-if"
122version = "0.1.10" 159version = "0.1.10"
123source = "registry+https://github.com/rust-lang/crates.io-index" 160source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -285,9 +322,9 @@ checksum = "9bda8e21c04aca2ae33ffc2fd8c23134f3cac46db123ba97bd9d3f3b8a4a85e1"
285 322
286[[package]] 323[[package]]
287name = "either" 324name = "either"
288version = "1.5.3" 325version = "1.6.0"
289source = "registry+https://github.com/rust-lang/crates.io-index" 326source = "registry+https://github.com/rust-lang/crates.io-index"
290checksum = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3" 327checksum = "cd56b59865bce947ac5958779cfa508f6c3b9497cc762b7e24a12d11ccde2c4f"
291 328
292[[package]] 329[[package]]
293name = "ena" 330name = "ena"
@@ -309,7 +346,7 @@ dependencies = [
309 346
310[[package]] 347[[package]]
311name = "expect" 348name = "expect"
312version = "0.1.0" 349version = "0.0.0"
313dependencies = [ 350dependencies = [
314 "difference", 351 "difference",
315 "once_cell", 352 "once_cell",
@@ -348,14 +385,14 @@ dependencies = [
348 385
349[[package]] 386[[package]]
350name = "flycheck" 387name = "flycheck"
351version = "0.1.0" 388version = "0.0.0"
352dependencies = [ 389dependencies = [
353 "cargo_metadata", 390 "cargo_metadata",
354 "crossbeam-channel", 391 "crossbeam-channel",
355 "jod-thread", 392 "jod-thread",
356 "log", 393 "log",
357 "ra_toolchain",
358 "serde_json", 394 "serde_json",
395 "toolchain",
359] 396]
360 397
361[[package]] 398[[package]]
@@ -444,6 +481,96 @@ dependencies = [
444] 481]
445 482
446[[package]] 483[[package]]
484name = "hir"
485version = "0.0.0"
486dependencies = [
487 "arrayvec",
488 "base_db",
489 "either",
490 "hir_def",
491 "hir_expand",
492 "hir_ty",
493 "itertools",
494 "log",
495 "profile",
496 "rustc-hash",
497 "stdx",
498 "syntax",
499]
500
501[[package]]
502name = "hir_def"
503version = "0.0.0"
504dependencies = [
505 "anymap",
506 "arena",
507 "base_db",
508 "cfg",
509 "drop_bomb",
510 "either",
511 "expect",
512 "fst",
513 "hir_expand",
514 "indexmap",
515 "itertools",
516 "log",
517 "mbe",
518 "once_cell",
519 "profile",
520 "rustc-hash",
521 "smallvec",
522 "stdx",
523 "syntax",
524 "test_utils",
525 "tt",
526]
527
528[[package]]
529name = "hir_expand"
530version = "0.0.0"
531dependencies = [
532 "arena",
533 "base_db",
534 "either",
535 "log",
536 "mbe",
537 "parser",
538 "profile",
539 "rustc-hash",
540 "syntax",
541 "test_utils",
542 "tt",
543]
544
545[[package]]
546name = "hir_ty"
547version = "0.0.0"
548dependencies = [
549 "arena",
550 "arrayvec",
551 "base_db",
552 "chalk-ir",
553 "chalk-recursive",
554 "chalk-solve",
555 "ena",
556 "expect",
557 "hir_def",
558 "hir_expand",
559 "itertools",
560 "log",
561 "profile",
562 "rustc-hash",
563 "scoped-tls",
564 "smallvec",
565 "stdx",
566 "syntax",
567 "test_utils",
568 "tracing",
569 "tracing-subscriber",
570 "tracing-tree",
571]
572
573[[package]]
447name = "home" 574name = "home"
448version = "0.5.3" 575version = "0.5.3"
449source = "registry+https://github.com/rust-lang/crates.io-index" 576source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -453,6 +580,49 @@ dependencies = [
453] 580]
454 581
455[[package]] 582[[package]]
583name = "ide"
584version = "0.0.0"
585dependencies = [
586 "assists",
587 "base_db",
588 "cfg",
589 "either",
590 "expect",
591 "hir",
592 "ide_db",
593 "indexmap",
594 "itertools",
595 "log",
596 "oorandom",
597 "profile",
598 "rustc-hash",
599 "ssr",
600 "stdx",
601 "syntax",
602 "test_utils",
603 "text_edit",
604]
605
606[[package]]
607name = "ide_db"
608version = "0.0.0"
609dependencies = [
610 "base_db",
611 "either",
612 "fst",
613 "hir",
614 "log",
615 "once_cell",
616 "profile",
617 "rayon",
618 "rustc-hash",
619 "stdx",
620 "syntax",
621 "test_utils",
622 "text_edit",
623]
624
625[[package]]
456name = "idna" 626name = "idna"
457version = "0.2.0" 627version = "0.2.0"
458source = "registry+https://github.com/rust-lang/crates.io-index" 628source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -547,9 +717,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
547 717
548[[package]] 718[[package]]
549name = "lazycell" 719name = "lazycell"
550version = "1.2.1" 720version = "1.3.0"
551source = "registry+https://github.com/rust-lang/crates.io-index" 721source = "registry+https://github.com/rust-lang/crates.io-index"
552checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f" 722checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
553 723
554[[package]] 724[[package]]
555name = "libc" 725name = "libc"
@@ -641,10 +811,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
641checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00" 811checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
642 812
643[[package]] 813[[package]]
644name = "memchr" 814name = "mbe"
645version = "2.3.3" 815version = "0.0.0"
646source = "registry+https://github.com/rust-lang/crates.io-index" 816dependencies = [
647checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400" 817 "log",
818 "parser",
819 "rustc-hash",
820 "smallvec",
821 "syntax",
822 "test_utils",
823 "tt",
824]
648 825
649[[package]] 826[[package]]
650name = "memmap" 827name = "memmap"
@@ -831,8 +1008,15 @@ dependencies = [
831] 1008]
832 1009
833[[package]] 1010[[package]]
1011name = "parser"
1012version = "0.0.0"
1013dependencies = [
1014 "drop_bomb",
1015]
1016
1017[[package]]
834name = "paths" 1018name = "paths"
835version = "0.1.0" 1019version = "0.0.0"
836 1020
837[[package]] 1021[[package]]
838name = "percent-encoding" 1022name = "percent-encoding"
@@ -891,338 +1075,72 @@ dependencies = [
891] 1075]
892 1076
893[[package]] 1077[[package]]
894name = "quote" 1078name = "proc_macro_api"
895version = "1.0.7" 1079version = "0.0.0"
896source = "registry+https://github.com/rust-lang/crates.io-index"
897checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
898dependencies = [
899 "proc-macro2",
900]
901
902[[package]]
903name = "ra_arena"
904version = "0.1.0"
905
906[[package]]
907name = "ra_assists"
908version = "0.1.0"
909dependencies = [
910 "either",
911 "itertools",
912 "ra_db",
913 "ra_fmt",
914 "ra_hir",
915 "ra_ide_db",
916 "ra_prof",
917 "ra_syntax",
918 "ra_text_edit",
919 "rustc-hash",
920 "stdx",
921 "test_utils",
922]
923
924[[package]]
925name = "ra_cfg"
926version = "0.1.0"
927dependencies = [
928 "ra_mbe",
929 "ra_syntax",
930 "ra_tt",
931 "rustc-hash",
932]
933
934[[package]]
935name = "ra_db"
936version = "0.1.0"
937dependencies = [
938 "ra_cfg",
939 "ra_prof",
940 "ra_syntax",
941 "ra_tt",
942 "rustc-hash",
943 "salsa",
944 "stdx",
945 "test_utils",
946 "vfs",
947]
948
949[[package]]
950name = "ra_fmt"
951version = "0.1.0"
952dependencies = [
953 "itertools",
954 "ra_syntax",
955]
956
957[[package]]
958name = "ra_hir"
959version = "0.1.0"
960dependencies = [
961 "arrayvec",
962 "either",
963 "itertools",
964 "log",
965 "ra_db",
966 "ra_hir_def",
967 "ra_hir_expand",
968 "ra_hir_ty",
969 "ra_prof",
970 "ra_syntax",
971 "rustc-hash",
972 "stdx",
973]
974
975[[package]]
976name = "ra_hir_def"
977version = "0.1.0"
978dependencies = [
979 "anymap",
980 "drop_bomb",
981 "either",
982 "expect",
983 "fst",
984 "indexmap",
985 "itertools",
986 "log",
987 "once_cell",
988 "ra_arena",
989 "ra_cfg",
990 "ra_db",
991 "ra_hir_expand",
992 "ra_mbe",
993 "ra_prof",
994 "ra_syntax",
995 "ra_tt",
996 "rustc-hash",
997 "smallvec",
998 "stdx",
999 "test_utils",
1000]
1001
1002[[package]]
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1004version = "0.1.0"
1005dependencies = [
1006 "either",
1007 "log",
1008 "ra_arena",
1009 "ra_db",
1010 "ra_mbe",
1011 "ra_parser",
1012 "ra_prof",
1013 "ra_syntax",
1014 "ra_tt",
1015 "rustc-hash",
1016 "test_utils",
1017]
1018
1019[[package]]
1020name = "ra_hir_ty"
1021version = "0.1.0"
1022dependencies = [
1023 "arrayvec",
1024 "chalk-ir",
1025 "chalk-recursive",
1026 "chalk-solve",
1027 "ena",
1028 "expect",
1029 "itertools",
1030 "log",
1031 "ra_arena",
1032 "ra_db",
1033 "ra_hir_def",
1034 "ra_hir_expand",
1035 "ra_prof",
1036 "ra_syntax",
1037 "rustc-hash",
1038 "scoped-tls",
1039 "smallvec",
1040 "stdx",
1041 "test_utils",
1042 "tracing",
1043 "tracing-subscriber",
1044 "tracing-tree",
1045]
1046
1047[[package]]
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1049version = "0.1.0"
1050dependencies = [
1051 "either",
1052 "expect",
1053 "indexmap",
1054 "itertools",
1055 "log",
1056 "oorandom",
1057 "ra_assists",
1058 "ra_cfg",
1059 "ra_db",
1060 "ra_fmt",
1061 "ra_hir",
1062 "ra_ide_db",
1063 "ra_prof",
1064 "ra_ssr",
1065 "ra_syntax",
1066 "ra_text_edit",
1067 "rustc-hash",
1068 "stdx",
1069 "test_utils",
1070]
1071
1072[[package]]
1073name = "ra_ide_db"
1074version = "0.1.0"
1075dependencies = [
1076 "either",
1077 "fst",
1078 "log",
1079 "once_cell",
1080 "ra_db",
1081 "ra_hir",
1082 "ra_prof",
1083 "ra_syntax",
1084 "ra_text_edit",
1085 "rayon",
1086 "rustc-hash",
1087 "stdx",
1088 "test_utils",
1089]
1090
1091[[package]]
1092name = "ra_mbe"
1093version = "0.1.0"
1094dependencies = [
1095 "log",
1096 "ra_parser",
1097 "ra_syntax",
1098 "ra_tt",
1099 "rustc-hash",
1100 "smallvec",
1101 "test_utils",
1102]
1103
1104[[package]]
1105name = "ra_parser"
1106version = "0.1.0"
1107dependencies = [
1108 "drop_bomb",
1109]
1110
1111[[package]]
1112name = "ra_proc_macro"
1113version = "0.1.0"
1114dependencies = [ 1080dependencies = [
1115 "crossbeam-channel", 1081 "crossbeam-channel",
1116 "jod-thread", 1082 "jod-thread",
1117 "log", 1083 "log",
1118 "ra_tt",
1119 "serde", 1084 "serde",
1120 "serde_json", 1085 "serde_json",
1086 "tt",
1121] 1087]
1122 1088
1123[[package]] 1089[[package]]
1124name = "ra_proc_macro_srv" 1090name = "proc_macro_srv"
1125version = "0.1.0" 1091version = "0.0.0"
1126dependencies = [ 1092dependencies = [
1127 "cargo_metadata", 1093 "cargo_metadata",
1128 "difference", 1094 "difference",
1129 "goblin", 1095 "goblin",
1130 "libloading", 1096 "libloading",
1097 "mbe",
1131 "memmap", 1098 "memmap",
1132 "ra_mbe", 1099 "proc_macro_api",
1133 "ra_proc_macro",
1134 "ra_toolchain",
1135 "ra_tt",
1136 "serde_derive", 1100 "serde_derive",
1137 "test_utils", 1101 "test_utils",
1102 "toolchain",
1103 "tt",
1138] 1104]
1139 1105
1140[[package]] 1106[[package]]
1141name = "ra_prof" 1107name = "profile"
1142version = "0.1.0" 1108version = "0.0.0"
1143dependencies = [ 1109dependencies = [
1110 "arena",
1144 "backtrace", 1111 "backtrace",
1145 "cfg-if", 1112 "cfg-if",
1146 "libc", 1113 "libc",
1147 "once_cell", 1114 "once_cell",
1148 "perf-event", 1115 "perf-event",
1149 "ra_arena",
1150] 1116]
1151 1117
1152[[package]] 1118[[package]]
1153name = "ra_project_model" 1119name = "project_model"
1154version = "0.1.0" 1120version = "0.0.0"
1155dependencies = [ 1121dependencies = [
1156 "anyhow", 1122 "anyhow",
1123 "arena",
1124 "base_db",
1157 "cargo_metadata", 1125 "cargo_metadata",
1126 "cfg",
1158 "log", 1127 "log",
1159 "paths", 1128 "paths",
1160 "ra_arena", 1129 "proc_macro_api",
1161 "ra_cfg",
1162 "ra_db",
1163 "ra_proc_macro",
1164 "ra_toolchain",
1165 "rustc-hash", 1130 "rustc-hash",
1166 "serde", 1131 "serde",
1167 "serde_json", 1132 "serde_json",
1168 "stdx", 1133 "stdx",
1134 "toolchain",
1169] 1135]
1170 1136
1171[[package]] 1137[[package]]
1172name = "ra_ssr" 1138name = "quote"
1173version = "0.1.0" 1139version = "1.0.7"
1174dependencies = [ 1140source = "registry+https://github.com/rust-lang/crates.io-index"
1175 "expect", 1141checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
1176 "ra_db",
1177 "ra_hir",
1178 "ra_ide_db",
1179 "ra_syntax",
1180 "ra_text_edit",
1181 "rustc-hash",
1182 "test_utils",
1183]
1184
1185[[package]]
1186name = "ra_syntax"
1187version = "0.1.0"
1188dependencies = [
1189 "arrayvec",
1190 "expect",
1191 "itertools",
1192 "once_cell",
1193 "ra_parser",
1194 "ra_text_edit",
1195 "rayon",
1196 "rowan",
1197 "rustc-ap-rustc_lexer",
1198 "rustc-hash",
1199 "serde",
1200 "smol_str",
1201 "stdx",
1202 "test_utils",
1203 "walkdir",
1204]
1205
1206[[package]]
1207name = "ra_text_edit"
1208version = "0.1.0"
1209dependencies = [
1210 "text-size",
1211]
1212
1213[[package]]
1214name = "ra_toolchain"
1215version = "0.1.0"
1216dependencies = [
1217 "home",
1218]
1219
1220[[package]]
1221name = "ra_tt"
1222version = "0.1.0"
1223dependencies = [ 1142dependencies = [
1224 "smol_str", 1143 "proc-macro2",
1225 "stdx",
1226] 1144]
1227 1145
1228[[package]] 1146[[package]]
@@ -1262,10 +1180,7 @@ version = "1.3.9"
1262source = "registry+https://github.com/rust-lang/crates.io-index" 1180source = "registry+https://github.com/rust-lang/crates.io-index"
1263checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6" 1181checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
1264dependencies = [ 1182dependencies = [
1265 "aho-corasick",
1266 "memchr",
1267 "regex-syntax", 1183 "regex-syntax",
1268 "thread_local",
1269] 1184]
1270 1185
1271[[package]] 1186[[package]]
@@ -1298,45 +1213,45 @@ dependencies = [
1298 1213
1299[[package]] 1214[[package]]
1300name = "rust-analyzer" 1215name = "rust-analyzer"
1301version = "0.1.0" 1216version = "0.0.0"
1302dependencies = [ 1217dependencies = [
1303 "anyhow", 1218 "anyhow",
1219 "base_db",
1220 "cfg",
1304 "crossbeam-channel", 1221 "crossbeam-channel",
1305 "env_logger", 1222 "env_logger",
1306 "expect", 1223 "expect",
1307 "flycheck", 1224 "flycheck",
1225 "hir",
1226 "hir_def",
1227 "hir_ty",
1228 "ide",
1229 "ide_db",
1308 "itertools", 1230 "itertools",
1309 "jod-thread", 1231 "jod-thread",
1310 "log", 1232 "log",
1311 "lsp-server", 1233 "lsp-server",
1312 "lsp-types", 1234 "lsp-types",
1235 "mbe",
1313 "mimalloc", 1236 "mimalloc",
1314 "oorandom", 1237 "oorandom",
1315 "parking_lot", 1238 "parking_lot",
1316 "pico-args", 1239 "pico-args",
1317 "ra_cfg", 1240 "proc_macro_srv",
1318 "ra_db", 1241 "profile",
1319 "ra_hir", 1242 "project_model",
1320 "ra_hir_def",
1321 "ra_hir_ty",
1322 "ra_ide",
1323 "ra_ide_db",
1324 "ra_mbe",
1325 "ra_proc_macro_srv",
1326 "ra_prof",
1327 "ra_project_model",
1328 "ra_ssr",
1329 "ra_syntax",
1330 "ra_text_edit",
1331 "ra_toolchain",
1332 "ra_tt",
1333 "rayon", 1243 "rayon",
1334 "rustc-hash", 1244 "rustc-hash",
1335 "serde", 1245 "serde",
1336 "serde_json", 1246 "serde_json",
1247 "ssr",
1337 "stdx", 1248 "stdx",
1249 "syntax",
1338 "test_utils", 1250 "test_utils",
1251 "text_edit",
1339 "threadpool", 1252 "threadpool",
1253 "toolchain",
1254 "tt",
1340 "vfs", 1255 "vfs",
1341 "vfs-notify", 1256 "vfs-notify",
1342 "winapi 0.3.9", 1257 "winapi 0.3.9",
@@ -1457,18 +1372,18 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
1457 1372
1458[[package]] 1373[[package]]
1459name = "serde" 1374name = "serde"
1460version = "1.0.114" 1375version = "1.0.115"
1461source = "registry+https://github.com/rust-lang/crates.io-index" 1376source = "registry+https://github.com/rust-lang/crates.io-index"
1462checksum = "5317f7588f0a5078ee60ef675ef96735a1442132dc645eb1d12c018620ed8cd3" 1377checksum = "e54c9a88f2da7238af84b5101443f0c0d0a3bbdc455e34a5c9497b1903ed55d5"
1463dependencies = [ 1378dependencies = [
1464 "serde_derive", 1379 "serde_derive",
1465] 1380]
1466 1381
1467[[package]] 1382[[package]]
1468name = "serde_derive" 1383name = "serde_derive"
1469version = "1.0.114" 1384version = "1.0.115"
1470source = "registry+https://github.com/rust-lang/crates.io-index" 1385source = "registry+https://github.com/rust-lang/crates.io-index"
1471checksum = "2a0be94b04690fbaed37cddffc5c134bf537c8e3329d53e982fe04c374978f8e" 1386checksum = "609feed1d0a73cc36a0182a840a9b37b4a82f0b1150369f0536a9e3f2a31dc48"
1472dependencies = [ 1387dependencies = [
1473 "proc-macro2", 1388 "proc-macro2",
1474 "quote", 1389 "quote",
@@ -1514,9 +1429,9 @@ checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
1514 1429
1515[[package]] 1430[[package]]
1516name = "smallvec" 1431name = "smallvec"
1517version = "1.4.1" 1432version = "1.4.2"
1518source = "registry+https://github.com/rust-lang/crates.io-index" 1433source = "registry+https://github.com/rust-lang/crates.io-index"
1519checksum = "3757cb9d89161a2f24e1cf78efa0c1fcff485d18e3f55e0aa3480824ddaa0f3f" 1434checksum = "fbee7696b84bbf3d89a1c2eccff0850e3047ed46bfcd2e92c29a2d074d57e252"
1520 1435
1521[[package]] 1436[[package]]
1522name = "smol_str" 1437name = "smol_str"
@@ -1528,8 +1443,22 @@ dependencies = [
1528] 1443]
1529 1444
1530[[package]] 1445[[package]]
1446name = "ssr"
1447version = "0.0.0"
1448dependencies = [
1449 "base_db",
1450 "expect",
1451 "hir",
1452 "ide_db",
1453 "rustc-hash",
1454 "syntax",
1455 "test_utils",
1456 "text_edit",
1457]
1458
1459[[package]]
1531name = "stdx" 1460name = "stdx"
1532version = "0.1.0" 1461version = "0.0.0"
1533 1462
1534[[package]] 1463[[package]]
1535name = "syn" 1464name = "syn"
@@ -1555,6 +1484,27 @@ dependencies = [
1555] 1484]
1556 1485
1557[[package]] 1486[[package]]
1487name = "syntax"
1488version = "0.0.0"
1489dependencies = [
1490 "arrayvec",
1491 "expect",
1492 "itertools",
1493 "once_cell",
1494 "parser",
1495 "rayon",
1496 "rowan",
1497 "rustc-ap-rustc_lexer",
1498 "rustc-hash",
1499 "serde",
1500 "smol_str",
1501 "stdx",
1502 "test_utils",
1503 "text_edit",
1504 "walkdir",
1505]
1506
1507[[package]]
1558name = "termcolor" 1508name = "termcolor"
1559version = "1.1.0" 1509version = "1.1.0"
1560source = "registry+https://github.com/rust-lang/crates.io-index" 1510source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1565,7 +1515,7 @@ dependencies = [
1565 1515
1566[[package]] 1516[[package]]
1567name = "test_utils" 1517name = "test_utils"
1568version = "0.1.0" 1518version = "0.0.0"
1569dependencies = [ 1519dependencies = [
1570 "difference", 1520 "difference",
1571 "rustc-hash", 1521 "rustc-hash",
@@ -1581,6 +1531,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
1581checksum = "f03e7efdedc3bc78cb2337f1e2785c39e45f5ef762d9e4ebb137fff7380a6d8a" 1531checksum = "f03e7efdedc3bc78cb2337f1e2785c39e45f5ef762d9e4ebb137fff7380a6d8a"
1582 1532
1583[[package]] 1533[[package]]
1534name = "text_edit"
1535version = "0.0.0"
1536dependencies = [
1537 "text-size",
1538]
1539
1540[[package]]
1584name = "thin-dst" 1541name = "thin-dst"
1585version = "1.1.0" 1542version = "1.1.0"
1586source = "registry+https://github.com/rust-lang/crates.io-index" 1543source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1621,10 +1578,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
1621checksum = "53953d2d3a5ad81d9f844a32f14ebb121f50b650cd59d0ee2a07cf13c617efed" 1578checksum = "53953d2d3a5ad81d9f844a32f14ebb121f50b650cd59d0ee2a07cf13c617efed"
1622 1579
1623[[package]] 1580[[package]]
1581name = "toolchain"
1582version = "0.0.0"
1583dependencies = [
1584 "home",
1585]
1586
1587[[package]]
1624name = "tracing" 1588name = "tracing"
1625version = "0.1.18" 1589version = "0.1.19"
1626source = "registry+https://github.com/rust-lang/crates.io-index" 1590source = "registry+https://github.com/rust-lang/crates.io-index"
1627checksum = "f0aae59226cf195d8e74d4b34beae1859257efb4e5fed3f147d2dc2c7d372178" 1591checksum = "6d79ca061b032d6ce30c660fded31189ca0b9922bf483cd70759f13a2d86786c"
1628dependencies = [ 1592dependencies = [
1629 "cfg-if", 1593 "cfg-if",
1630 "tracing-attributes", 1594 "tracing-attributes",
@@ -1633,9 +1597,9 @@ dependencies = [
1633 1597
1634[[package]] 1598[[package]]
1635name = "tracing-attributes" 1599name = "tracing-attributes"
1636version = "0.1.9" 1600version = "0.1.10"
1637source = "registry+https://github.com/rust-lang/crates.io-index" 1601source = "registry+https://github.com/rust-lang/crates.io-index"
1638checksum = "f0693bf8d6f2bf22c690fc61a9d21ac69efdbb894a17ed596b9af0f01e64b84b" 1602checksum = "1fe233f4227389ab7df5b32649239da7ebe0b281824b4e84b342d04d3fd8c25e"
1639dependencies = [ 1603dependencies = [
1640 "proc-macro2", 1604 "proc-macro2",
1641 "quote", 1605 "quote",
@@ -1644,9 +1608,9 @@ dependencies = [
1644 1608
1645[[package]] 1609[[package]]
1646name = "tracing-core" 1610name = "tracing-core"
1647version = "0.1.13" 1611version = "0.1.14"
1648source = "registry+https://github.com/rust-lang/crates.io-index" 1612source = "registry+https://github.com/rust-lang/crates.io-index"
1649checksum = "d593f98af59ebc017c0648f0117525db358745a8894a8d684e185ba3f45954f9" 1613checksum = "db63662723c316b43ca36d833707cc93dff82a02ba3d7e354f342682cc8b3545"
1650dependencies = [ 1614dependencies = [
1651 "lazy_static", 1615 "lazy_static",
1652] 1616]
@@ -1674,9 +1638,9 @@ dependencies = [
1674 1638
1675[[package]] 1639[[package]]
1676name = "tracing-subscriber" 1640name = "tracing-subscriber"
1677version = "0.2.10" 1641version = "0.2.11"
1678source = "registry+https://github.com/rust-lang/crates.io-index" 1642source = "registry+https://github.com/rust-lang/crates.io-index"
1679checksum = "f7b33f8b2ef2ab0c3778c12646d9c42a24f7772bee4cdafc72199644a9f58fdc" 1643checksum = "abd165311cc4d7a555ad11cc77a37756df836182db0d81aac908c8184c584f40"
1680dependencies = [ 1644dependencies = [
1681 "ansi_term", 1645 "ansi_term",
1682 "chrono", 1646 "chrono",
@@ -1687,6 +1651,7 @@ dependencies = [
1687 "serde_json", 1651 "serde_json",
1688 "sharded-slab", 1652 "sharded-slab",
1689 "smallvec", 1653 "smallvec",
1654 "thread_local",
1690 "tracing-core", 1655 "tracing-core",
1691 "tracing-log", 1656 "tracing-log",
1692 "tracing-serde", 1657 "tracing-serde",
@@ -1707,6 +1672,14 @@ dependencies = [
1707] 1672]
1708 1673
1709[[package]] 1674[[package]]
1675name = "tt"
1676version = "0.0.0"
1677dependencies = [
1678 "smol_str",
1679 "stdx",
1680]
1681
1682[[package]]
1710name = "ungrammar" 1683name = "ungrammar"
1711version = "1.1.1" 1684version = "1.1.1"
1712source = "registry+https://github.com/rust-lang/crates.io-index" 1685source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1756,7 +1729,7 @@ dependencies = [
1756 1729
1757[[package]] 1730[[package]]
1758name = "vfs" 1731name = "vfs"
1759version = "0.1.0" 1732version = "0.0.0"
1760dependencies = [ 1733dependencies = [
1761 "fst", 1734 "fst",
1762 "paths", 1735 "paths",
@@ -1765,7 +1738,7 @@ dependencies = [
1765 1738
1766[[package]] 1739[[package]]
1767name = "vfs-notify" 1740name = "vfs-notify"
1768version = "0.1.0" 1741version = "0.0.0"
1769dependencies = [ 1742dependencies = [
1770 "crossbeam-channel", 1743 "crossbeam-channel",
1771 "jod-thread", 1744 "jod-thread",
diff --git a/README.md b/README.md
index 16c980400..264e4da70 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frls-2.2E0
39 39
40* Website: https://rust-analyzer.github.io/ 40* Website: https://rust-analyzer.github.io/
41* Metrics: https://rust-analyzer.github.io/metrics/ 41* Metrics: https://rust-analyzer.github.io/metrics/
42* API docs: https://rust-analyzer.github.io/rust-analyzer/ra_ide/ 42* API docs: https://rust-analyzer.github.io/rust-analyzer/ide/
43 43
44## License 44## License
45 45
diff --git a/bors.toml b/bors.toml
index 13ce236df..4c980a24d 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,9 +1,8 @@
1status = [ 1status = [
2 "Rust (ubuntu-latest)", 2 "Rust (ubuntu-latest)",
3 "Rust (windows-latest)", 3 "Rust (windows-latest)",
4 "Rust (macos-latest)", 4 # "Rust (macos-latest)",
5 "TypeScript (ubuntu-latest)", 5 "TypeScript (ubuntu-latest)",
6 "TypeScript (windows-latest)", 6 "TypeScript (windows-latest)",
7 "TypeScript (macos-latest)",
8] 7]
9delete_merged_branches = true 8delete_merged_branches = true
diff --git a/crates/arena/Cargo.toml b/crates/arena/Cargo.toml
new file mode 100644
index 000000000..f2bb5cc45
--- /dev/null
+++ b/crates/arena/Cargo.toml
@@ -0,0 +1,9 @@
1[package]
2name = "arena"
3version = "0.0.0"
4license = "MIT OR Apache-2.0"
5authors = ["rust-analyzer developers"]
6edition = "2018"
7
8[lib]
9doctest = false
diff --git a/crates/ra_arena/src/lib.rs b/crates/arena/src/lib.rs
index 3169aa5b8..3169aa5b8 100644
--- a/crates/ra_arena/src/lib.rs
+++ b/crates/arena/src/lib.rs
diff --git a/crates/ra_arena/src/map.rs b/crates/arena/src/map.rs
index 0f33907c0..0f33907c0 100644
--- a/crates/ra_arena/src/map.rs
+++ b/crates/arena/src/map.rs
diff --git a/crates/assists/Cargo.toml b/crates/assists/Cargo.toml
new file mode 100644
index 000000000..a560a35c7
--- /dev/null
+++ b/crates/assists/Cargo.toml
@@ -0,0 +1,23 @@
1[package]
2name = "assists"
3version = "0.0.0"
4license = "MIT OR Apache-2.0"
5authors = ["rust-analyzer developers"]
6edition = "2018"
7
8[lib]
9doctest = false
10
11[dependencies]
12rustc-hash = "1.1.0"
13itertools = "0.9.0"
14either = "1.5.3"
15
16stdx = { path = "../stdx" }
17syntax = { path = "../syntax" }
18text_edit = { path = "../text_edit" }
19profile = { path = "../profile" }
20base_db = { path = "../base_db" }
21ide_db = { path = "../ide_db" }
22hir = { path = "../hir" }
23test_utils = { path = "../test_utils" }
diff --git a/crates/ra_assists/src/assist_config.rs b/crates/assists/src/assist_config.rs
index cda2abfb9..cda2abfb9 100644
--- a/crates/ra_assists/src/assist_config.rs
+++ b/crates/assists/src/assist_config.rs
diff --git a/crates/assists/src/assist_context.rs b/crates/assists/src/assist_context.rs
new file mode 100644
index 000000000..79574b9ac
--- /dev/null
+++ b/crates/assists/src/assist_context.rs
@@ -0,0 +1,291 @@
1//! See `AssistContext`
2
3use std::mem;
4
5use algo::find_covering_element;
6use base_db::{FileId, FileRange};
7use hir::Semantics;
8use ide_db::{
9 source_change::{SourceChange, SourceFileEdit},
10 RootDatabase,
11};
12use syntax::{
13 algo::{self, find_node_at_offset, SyntaxRewriter},
14 AstNode, SourceFile, SyntaxElement, SyntaxKind, SyntaxToken, TextRange, TextSize,
15 TokenAtOffset,
16};
17use text_edit::{TextEdit, TextEditBuilder};
18
19use crate::{
20 assist_config::{AssistConfig, SnippetCap},
21 Assist, AssistId, AssistKind, GroupLabel, ResolvedAssist,
22};
23
24/// `AssistContext` allows to apply an assist or check if it could be applied.
25///
26/// Assists use a somewhat over-engineered approach, given the current needs.
27/// The assists workflow consists of two phases. In the first phase, a user asks
28/// for the list of available assists. In the second phase, the user picks a
29/// particular assist and it gets applied.
30///
31/// There are two peculiarities here:
32///
33/// * first, we ideally avoid computing more things then necessary to answer "is
34/// assist applicable" in the first phase.
35/// * second, when we are applying assist, we don't have a guarantee that there
36/// weren't any changes between the point when user asked for assists and when
37/// they applied a particular assist. So, when applying assist, we need to do
38/// all the checks from scratch.
39///
40/// To avoid repeating the same code twice for both "check" and "apply"
41/// functions, we use an approach reminiscent of that of Django's function based
42/// views dealing with forms. Each assist receives a runtime parameter,
43/// `resolve`. It first check if an edit is applicable (potentially computing
44/// info required to compute the actual edit). If it is applicable, and
45/// `resolve` is `true`, it then computes the actual edit.
46///
47/// So, to implement the original assists workflow, we can first apply each edit
48/// with `resolve = false`, and then applying the selected edit again, with
49/// `resolve = true` this time.
50///
51/// Note, however, that we don't actually use such two-phase logic at the
52/// moment, because the LSP API is pretty awkward in this place, and it's much
53/// easier to just compute the edit eagerly :-)
54pub(crate) struct AssistContext<'a> {
55 pub(crate) config: &'a AssistConfig,
56 pub(crate) sema: Semantics<'a, RootDatabase>,
57 pub(crate) frange: FileRange,
58 source_file: SourceFile,
59}
60
61impl<'a> AssistContext<'a> {
62 pub(crate) fn new(
63 sema: Semantics<'a, RootDatabase>,
64 config: &'a AssistConfig,
65 frange: FileRange,
66 ) -> AssistContext<'a> {
67 let source_file = sema.parse(frange.file_id);
68 AssistContext { config, sema, frange, source_file }
69 }
70
71 pub(crate) fn db(&self) -> &RootDatabase {
72 self.sema.db
73 }
74
75 pub(crate) fn source_file(&self) -> &SourceFile {
76 &self.source_file
77 }
78
79 // NB, this ignores active selection.
80 pub(crate) fn offset(&self) -> TextSize {
81 self.frange.range.start()
82 }
83
84 pub(crate) fn token_at_offset(&self) -> TokenAtOffset<SyntaxToken> {
85 self.source_file.syntax().token_at_offset(self.offset())
86 }
87 pub(crate) fn find_token_at_offset(&self, kind: SyntaxKind) -> Option<SyntaxToken> {
88 self.token_at_offset().find(|it| it.kind() == kind)
89 }
90 pub(crate) fn find_node_at_offset<N: AstNode>(&self) -> Option<N> {
91 find_node_at_offset(self.source_file.syntax(), self.offset())
92 }
93 pub(crate) fn find_node_at_offset_with_descend<N: AstNode>(&self) -> Option<N> {
94 self.sema.find_node_at_offset_with_descend(self.source_file.syntax(), self.offset())
95 }
96 pub(crate) fn covering_element(&self) -> SyntaxElement {
97 find_covering_element(self.source_file.syntax(), self.frange.range)
98 }
99 // FIXME: remove
100 pub(crate) fn covering_node_for_range(&self, range: TextRange) -> SyntaxElement {
101 find_covering_element(self.source_file.syntax(), range)
102 }
103}
104
105pub(crate) struct Assists {
106 resolve: bool,
107 file: FileId,
108 buf: Vec<(Assist, Option<SourceChange>)>,
109 allowed: Option<Vec<AssistKind>>,
110}
111
112impl Assists {
113 pub(crate) fn new_resolved(ctx: &AssistContext) -> Assists {
114 Assists {
115 resolve: true,
116 file: ctx.frange.file_id,
117 buf: Vec::new(),
118 allowed: ctx.config.allowed.clone(),
119 }
120 }
121
122 pub(crate) fn new_unresolved(ctx: &AssistContext) -> Assists {
123 Assists {
124 resolve: false,
125 file: ctx.frange.file_id,
126 buf: Vec::new(),
127 allowed: ctx.config.allowed.clone(),
128 }
129 }
130
131 pub(crate) fn finish_unresolved(self) -> Vec<Assist> {
132 assert!(!self.resolve);
133 self.finish()
134 .into_iter()
135 .map(|(label, edit)| {
136 assert!(edit.is_none());
137 label
138 })
139 .collect()
140 }
141
142 pub(crate) fn finish_resolved(self) -> Vec<ResolvedAssist> {
143 assert!(self.resolve);
144 self.finish()
145 .into_iter()
146 .map(|(label, edit)| ResolvedAssist { assist: label, source_change: edit.unwrap() })
147 .collect()
148 }
149
150 pub(crate) fn add(
151 &mut self,
152 id: AssistId,
153 label: impl Into<String>,
154 target: TextRange,
155 f: impl FnOnce(&mut AssistBuilder),
156 ) -> Option<()> {
157 if !self.is_allowed(&id) {
158 return None;
159 }
160 let label = Assist::new(id, label.into(), None, target);
161 self.add_impl(label, f)
162 }
163
164 pub(crate) fn add_group(
165 &mut self,
166 group: &GroupLabel,
167 id: AssistId,
168 label: impl Into<String>,
169 target: TextRange,
170 f: impl FnOnce(&mut AssistBuilder),
171 ) -> Option<()> {
172 if !self.is_allowed(&id) {
173 return None;
174 }
175
176 let label = Assist::new(id, label.into(), Some(group.clone()), target);
177 self.add_impl(label, f)
178 }
179
180 fn add_impl(&mut self, label: Assist, f: impl FnOnce(&mut AssistBuilder)) -> Option<()> {
181 let source_change = if self.resolve {
182 let mut builder = AssistBuilder::new(self.file);
183 f(&mut builder);
184 Some(builder.finish())
185 } else {
186 None
187 };
188
189 self.buf.push((label, source_change));
190 Some(())
191 }
192
193 fn finish(mut self) -> Vec<(Assist, Option<SourceChange>)> {
194 self.buf.sort_by_key(|(label, _edit)| label.target.len());
195 self.buf
196 }
197
198 fn is_allowed(&self, id: &AssistId) -> bool {
199 match &self.allowed {
200 Some(allowed) => allowed.iter().any(|kind| kind.contains(id.1)),
201 None => true,
202 }
203 }
204}
205
206pub(crate) struct AssistBuilder {
207 edit: TextEditBuilder,
208 file_id: FileId,
209 is_snippet: bool,
210 change: SourceChange,
211}
212
213impl AssistBuilder {
214 pub(crate) fn new(file_id: FileId) -> AssistBuilder {
215 AssistBuilder {
216 edit: TextEdit::builder(),
217 file_id,
218 is_snippet: false,
219 change: SourceChange::default(),
220 }
221 }
222
223 pub(crate) fn edit_file(&mut self, file_id: FileId) {
224 self.file_id = file_id;
225 }
226
227 fn commit(&mut self) {
228 let edit = mem::take(&mut self.edit).finish();
229 if !edit.is_empty() {
230 let new_edit = SourceFileEdit { file_id: self.file_id, edit };
231 assert!(!self.change.source_file_edits.iter().any(|it| it.file_id == new_edit.file_id));
232 self.change.source_file_edits.push(new_edit);
233 }
234 }
235
236 /// Remove specified `range` of text.
237 pub(crate) fn delete(&mut self, range: TextRange) {
238 self.edit.delete(range)
239 }
240 /// Append specified `text` at the given `offset`
241 pub(crate) fn insert(&mut self, offset: TextSize, text: impl Into<String>) {
242 self.edit.insert(offset, text.into())
243 }
244 /// Append specified `snippet` at the given `offset`
245 pub(crate) fn insert_snippet(
246 &mut self,
247 _cap: SnippetCap,
248 offset: TextSize,
249 snippet: impl Into<String>,
250 ) {
251 self.is_snippet = true;
252 self.insert(offset, snippet);
253 }
254 /// Replaces specified `range` of text with a given string.
255 pub(crate) fn replace(&mut self, range: TextRange, replace_with: impl Into<String>) {
256 self.edit.replace(range, replace_with.into())
257 }
258 /// Replaces specified `range` of text with a given `snippet`.
259 pub(crate) fn replace_snippet(
260 &mut self,
261 _cap: SnippetCap,
262 range: TextRange,
263 snippet: impl Into<String>,
264 ) {
265 self.is_snippet = true;
266 self.replace(range, snippet);
267 }
268 pub(crate) fn replace_ast<N: AstNode>(&mut self, old: N, new: N) {
269 algo::diff(old.syntax(), new.syntax()).into_text_edit(&mut self.edit)
270 }
271 pub(crate) fn rewrite(&mut self, rewriter: SyntaxRewriter) {
272 let node = rewriter.rewrite_root().unwrap();
273 let new = rewriter.rewrite(&node);
274 algo::diff(&node, &new).into_text_edit(&mut self.edit);
275 }
276
277 // FIXME: kill this API
278 /// Get access to the raw `TextEditBuilder`.
279 pub(crate) fn text_edit_builder(&mut self) -> &mut TextEditBuilder {
280 &mut self.edit
281 }
282
283 fn finish(mut self) -> SourceChange {
284 self.commit();
285 let mut change = mem::take(&mut self.change);
286 if self.is_snippet {
287 change.is_snippet = true;
288 }
289 change
290 }
291}
diff --git a/crates/assists/src/ast_transform.rs b/crates/assists/src/ast_transform.rs
new file mode 100644
index 000000000..4c41c16d8
--- /dev/null
+++ b/crates/assists/src/ast_transform.rs
@@ -0,0 +1,206 @@
1//! `AstTransformer`s are functions that replace nodes in an AST and can be easily combined.
2use rustc_hash::FxHashMap;
3
4use hir::{HirDisplay, PathResolution, SemanticsScope};
5use syntax::{
6 algo::SyntaxRewriter,
7 ast::{self, AstNode},
8};
9
10pub trait AstTransform<'a> {
11 fn get_substitution(&self, node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode>;
12
13 fn chain_before(self, other: Box<dyn AstTransform<'a> + 'a>) -> Box<dyn AstTransform<'a> + 'a>;
14 fn or<T: AstTransform<'a> + 'a>(self, other: T) -> Box<dyn AstTransform<'a> + 'a>
15 where
16 Self: Sized + 'a,
17 {
18 self.chain_before(Box::new(other))
19 }
20}
21
22struct NullTransformer;
23
24impl<'a> AstTransform<'a> for NullTransformer {
25 fn get_substitution(&self, _node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode> {
26 None
27 }
28 fn chain_before(self, other: Box<dyn AstTransform<'a> + 'a>) -> Box<dyn AstTransform<'a> + 'a> {
29 other
30 }
31}
32
33pub struct SubstituteTypeParams<'a> {
34 source_scope: &'a SemanticsScope<'a>,
35 substs: FxHashMap<hir::TypeParam, ast::Type>,
36 previous: Box<dyn AstTransform<'a> + 'a>,
37}
38
39impl<'a> SubstituteTypeParams<'a> {
40 pub fn for_trait_impl(
41 source_scope: &'a SemanticsScope<'a>,
42 // FIXME: there's implicit invariant that `trait_` and `source_scope` match...
43 trait_: hir::Trait,
44 impl_def: ast::Impl,
45 ) -> SubstituteTypeParams<'a> {
46 let substs = get_syntactic_substs(impl_def).unwrap_or_default();
47 let generic_def: hir::GenericDef = trait_.into();
48 let substs_by_param: FxHashMap<_, _> = generic_def
49 .params(source_scope.db)
50 .into_iter()
51 // this is a trait impl, so we need to skip the first type parameter -- this is a bit hacky
52 .skip(1)
53 // The actual list of trait type parameters may be longer than the one
54 // used in the `impl` block due to trailing default type parameters.
55 // For that case we extend the `substs` with an empty iterator so we
56 // can still hit those trailing values and check if they actually have
57 // a default type. If they do, go for that type from `hir` to `ast` so
58 // the resulting change can be applied correctly.
59 .zip(substs.into_iter().map(Some).chain(std::iter::repeat(None)))
60 .filter_map(|(k, v)| match v {
61 Some(v) => Some((k, v)),
62 None => {
63 let default = k.default(source_scope.db)?;
64 Some((
65 k,
66 ast::make::ty(
67 &default
68 .display_source_code(source_scope.db, source_scope.module()?.into())
69 .ok()?,
70 ),
71 ))
72 }
73 })
74 .collect();
75 return SubstituteTypeParams {
76 source_scope,
77 substs: substs_by_param,
78 previous: Box::new(NullTransformer),
79 };
80
81 // FIXME: It would probably be nicer if we could get this via HIR (i.e. get the
82 // trait ref, and then go from the types in the substs back to the syntax).
83 fn get_syntactic_substs(impl_def: ast::Impl) -> Option<Vec<ast::Type>> {
84 let target_trait = impl_def.trait_()?;
85 let path_type = match target_trait {
86 ast::Type::PathType(path) => path,
87 _ => return None,
88 };
89 let generic_arg_list = path_type.path()?.segment()?.generic_arg_list()?;
90
91 let mut result = Vec::new();
92 for generic_arg in generic_arg_list.generic_args() {
93 match generic_arg {
94 ast::GenericArg::TypeArg(type_arg) => result.push(type_arg.ty()?),
95 ast::GenericArg::AssocTypeArg(_)
96 | ast::GenericArg::LifetimeArg(_)
97 | ast::GenericArg::ConstArg(_) => (),
98 }
99 }
100
101 Some(result)
102 }
103 }
104 fn get_substitution_inner(&self, node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode> {
105 let type_ref = ast::Type::cast(node.clone())?;
106 let path = match &type_ref {
107 ast::Type::PathType(path_type) => path_type.path()?,
108 _ => return None,
109 };
110 // FIXME: use `hir::Path::from_src` instead.
111 #[allow(deprecated)]
112 let path = hir::Path::from_ast(path)?;
113 let resolution = self.source_scope.resolve_hir_path(&path)?;
114 match resolution {
115 hir::PathResolution::TypeParam(tp) => Some(self.substs.get(&tp)?.syntax().clone()),
116 _ => None,
117 }
118 }
119}
120
121impl<'a> AstTransform<'a> for SubstituteTypeParams<'a> {
122 fn get_substitution(&self, node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode> {
123 self.get_substitution_inner(node).or_else(|| self.previous.get_substitution(node))
124 }
125 fn chain_before(self, other: Box<dyn AstTransform<'a> + 'a>) -> Box<dyn AstTransform<'a> + 'a> {
126 Box::new(SubstituteTypeParams { previous: other, ..self })
127 }
128}
129
130pub struct QualifyPaths<'a> {
131 target_scope: &'a SemanticsScope<'a>,
132 source_scope: &'a SemanticsScope<'a>,
133 previous: Box<dyn AstTransform<'a> + 'a>,
134}
135
136impl<'a> QualifyPaths<'a> {
137 pub fn new(target_scope: &'a SemanticsScope<'a>, source_scope: &'a SemanticsScope<'a>) -> Self {
138 Self { target_scope, source_scope, previous: Box::new(NullTransformer) }
139 }
140
141 fn get_substitution_inner(&self, node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode> {
142 // FIXME handle value ns?
143 let from = self.target_scope.module()?;
144 let p = ast::Path::cast(node.clone())?;
145 if p.segment().and_then(|s| s.param_list()).is_some() {
146 // don't try to qualify `Fn(Foo) -> Bar` paths, they are in prelude anyway
147 return None;
148 }
149 // FIXME: use `hir::Path::from_src` instead.
150 #[allow(deprecated)]
151 let hir_path = hir::Path::from_ast(p.clone());
152 let resolution = self.source_scope.resolve_hir_path(&hir_path?)?;
153 match resolution {
154 PathResolution::Def(def) => {
155 let found_path = from.find_use_path(self.source_scope.db.upcast(), def)?;
156 let mut path = path_to_ast(found_path);
157
158 let type_args = p
159 .segment()
160 .and_then(|s| s.generic_arg_list())
161 .map(|arg_list| apply(self, arg_list));
162 if let Some(type_args) = type_args {
163 let last_segment = path.segment().unwrap();
164 path = path.with_segment(last_segment.with_type_args(type_args))
165 }
166
167 Some(path.syntax().clone())
168 }
169 PathResolution::Local(_)
170 | PathResolution::TypeParam(_)
171 | PathResolution::SelfType(_) => None,
172 PathResolution::Macro(_) => None,
173 PathResolution::AssocItem(_) => None,
174 }
175 }
176}
177
178pub fn apply<'a, N: AstNode>(transformer: &dyn AstTransform<'a>, node: N) -> N {
179 SyntaxRewriter::from_fn(|element| match element {
180 syntax::SyntaxElement::Node(n) => {
181 let replacement = transformer.get_substitution(&n)?;
182 Some(replacement.into())
183 }
184 _ => None,
185 })
186 .rewrite_ast(&node)
187}
188
189impl<'a> AstTransform<'a> for QualifyPaths<'a> {
190 fn get_substitution(&self, node: &syntax::SyntaxNode) -> Option<syntax::SyntaxNode> {
191 self.get_substitution_inner(node).or_else(|| self.previous.get_substitution(node))
192 }
193 fn chain_before(self, other: Box<dyn AstTransform<'a> + 'a>) -> Box<dyn AstTransform<'a> + 'a> {
194 Box::new(QualifyPaths { previous: other, ..self })
195 }
196}
197
198pub(crate) fn path_to_ast(path: hir::ModPath) -> ast::Path {
199 let parse = ast::SourceFile::parse(&path.to_string());
200 parse
201 .tree()
202 .syntax()
203 .descendants()
204 .find_map(ast::Path::cast)
205 .unwrap_or_else(|| panic!("failed to parse path {:?}, `{}`", path, path))
206}
diff --git a/crates/assists/src/handlers/add_custom_impl.rs b/crates/assists/src/handlers/add_custom_impl.rs
new file mode 100644
index 000000000..8757fa33f
--- /dev/null
+++ b/crates/assists/src/handlers/add_custom_impl.rs
@@ -0,0 +1,208 @@
1use itertools::Itertools;
2use syntax::{
3 ast::{self, AstNode},
4 Direction, SmolStr,
5 SyntaxKind::{IDENT, WHITESPACE},
6 TextRange, TextSize,
7};
8
9use crate::{
10 assist_context::{AssistContext, Assists},
11 AssistId, AssistKind,
12};
13
14// Assist: add_custom_impl
15//
16// Adds impl block for derived trait.
17//
18// ```
19// #[derive(Deb<|>ug, Display)]
20// struct S;
21// ```
22// ->
23// ```
24// #[derive(Display)]
25// struct S;
26//
27// impl Debug for S {
28// $0
29// }
30// ```
31pub(crate) fn add_custom_impl(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
32 let attr = ctx.find_node_at_offset::<ast::Attr>()?;
33 let input = attr.token_tree()?;
34
35 let attr_name = attr
36 .syntax()
37 .descendants_with_tokens()
38 .filter(|t| t.kind() == IDENT)
39 .find_map(|i| i.into_token())
40 .filter(|t| *t.text() == "derive")?
41 .text()
42 .clone();
43
44 let trait_token =
45 ctx.token_at_offset().find(|t| t.kind() == IDENT && *t.text() != attr_name)?;
46
47 let annotated = attr.syntax().siblings(Direction::Next).find_map(ast::Name::cast)?;
48 let annotated_name = annotated.syntax().text().to_string();
49 let start_offset = annotated.syntax().parent()?.text_range().end();
50
51 let label =
52 format!("Add custom impl `{}` for `{}`", trait_token.text().as_str(), annotated_name);
53
54 let target = attr.syntax().text_range();
55 acc.add(AssistId("add_custom_impl", AssistKind::Refactor), label, target, |builder| {
56 let new_attr_input = input
57 .syntax()
58 .descendants_with_tokens()
59 .filter(|t| t.kind() == IDENT)
60 .filter_map(|t| t.into_token().map(|t| t.text().clone()))
61 .filter(|t| t != trait_token.text())
62 .collect::<Vec<SmolStr>>();
63 let has_more_derives = !new_attr_input.is_empty();
64
65 if has_more_derives {
66 let new_attr_input = format!("({})", new_attr_input.iter().format(", "));
67 builder.replace(input.syntax().text_range(), new_attr_input);
68 } else {
69 let attr_range = attr.syntax().text_range();
70 builder.delete(attr_range);
71
72 let line_break_range = attr
73 .syntax()
74 .next_sibling_or_token()
75 .filter(|t| t.kind() == WHITESPACE)
76 .map(|t| t.text_range())
77 .unwrap_or_else(|| TextRange::new(TextSize::from(0), TextSize::from(0)));
78 builder.delete(line_break_range);
79 }
80
81 match ctx.config.snippet_cap {
82 Some(cap) => {
83 builder.insert_snippet(
84 cap,
85 start_offset,
86 format!("\n\nimpl {} for {} {{\n $0\n}}", trait_token, annotated_name),
87 );
88 }
89 None => {
90 builder.insert(
91 start_offset,
92 format!("\n\nimpl {} for {} {{\n\n}}", trait_token, annotated_name),
93 );
94 }
95 }
96 })
97}
98
99#[cfg(test)]
100mod tests {
101 use crate::tests::{check_assist, check_assist_not_applicable};
102
103 use super::*;
104
105 #[test]
106 fn add_custom_impl_for_unique_input() {
107 check_assist(
108 add_custom_impl,
109 "
110#[derive(Debu<|>g)]
111struct Foo {
112 bar: String,
113}
114 ",
115 "
116struct Foo {
117 bar: String,
118}
119
120impl Debug for Foo {
121 $0
122}
123 ",
124 )
125 }
126
127 #[test]
128 fn add_custom_impl_for_with_visibility_modifier() {
129 check_assist(
130 add_custom_impl,
131 "
132#[derive(Debug<|>)]
133pub struct Foo {
134 bar: String,
135}
136 ",
137 "
138pub struct Foo {
139 bar: String,
140}
141
142impl Debug for Foo {
143 $0
144}
145 ",
146 )
147 }
148
149 #[test]
150 fn add_custom_impl_when_multiple_inputs() {
151 check_assist(
152 add_custom_impl,
153 "
154#[derive(Display, Debug<|>, Serialize)]
155struct Foo {}
156 ",
157 "
158#[derive(Display, Serialize)]
159struct Foo {}
160
161impl Debug for Foo {
162 $0
163}
164 ",
165 )
166 }
167
168 #[test]
169 fn test_ignore_derive_macro_without_input() {
170 check_assist_not_applicable(
171 add_custom_impl,
172 "
173#[derive(<|>)]
174struct Foo {}
175 ",
176 )
177 }
178
179 #[test]
180 fn test_ignore_if_cursor_on_param() {
181 check_assist_not_applicable(
182 add_custom_impl,
183 "
184#[derive<|>(Debug)]
185struct Foo {}
186 ",
187 );
188
189 check_assist_not_applicable(
190 add_custom_impl,
191 "
192#[derive(Debug)<|>]
193struct Foo {}
194 ",
195 )
196 }
197
198 #[test]
199 fn test_ignore_if_not_derive() {
200 check_assist_not_applicable(
201 add_custom_impl,
202 "
203#[allow(non_camel_<|>case_types)]
204struct Foo {}
205 ",
206 )
207 }
208}
diff --git a/crates/assists/src/handlers/add_explicit_type.rs b/crates/assists/src/handlers/add_explicit_type.rs
new file mode 100644
index 000000000..563cbf505
--- /dev/null
+++ b/crates/assists/src/handlers/add_explicit_type.rs
@@ -0,0 +1,211 @@
1use hir::HirDisplay;
2use syntax::{
3 ast::{self, AstNode, LetStmt, NameOwner},
4 TextRange,
5};
6
7use crate::{AssistContext, AssistId, AssistKind, Assists};
8
9// Assist: add_explicit_type
10//
11// Specify type for a let binding.
12//
13// ```
14// fn main() {
15// let x<|> = 92;
16// }
17// ```
18// ->
19// ```
20// fn main() {
21// let x: i32 = 92;
22// }
23// ```
24pub(crate) fn add_explicit_type(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
25 let let_stmt = ctx.find_node_at_offset::<LetStmt>()?;
26 let module = ctx.sema.scope(let_stmt.syntax()).module()?;
27 let expr = let_stmt.initializer()?;
28 // Must be a binding
29 let pat = match let_stmt.pat()? {
30 ast::Pat::IdentPat(bind_pat) => bind_pat,
31 _ => return None,
32 };
33 let pat_range = pat.syntax().text_range();
34 // The binding must have a name
35 let name = pat.name()?;
36 let name_range = name.syntax().text_range();
37 let stmt_range = let_stmt.syntax().text_range();
38 let eq_range = let_stmt.eq_token()?.text_range();
39 // Assist should only be applicable if cursor is between 'let' and '='
40 let let_range = TextRange::new(stmt_range.start(), eq_range.start());
41 let cursor_in_range = let_range.contains_range(ctx.frange.range);
42 if !cursor_in_range {
43 return None;
44 }
45 // Assist not applicable if the type has already been specified
46 // and it has no placeholders
47 let ascribed_ty = let_stmt.ty();
48 if let Some(ty) = &ascribed_ty {
49 if ty.syntax().descendants().find_map(ast::InferType::cast).is_none() {
50 return None;
51 }
52 }
53 // Infer type
54 let ty = ctx.sema.type_of_expr(&expr)?;
55
56 if ty.contains_unknown() || ty.is_closure() {
57 return None;
58 }
59
60 let inferred_type = ty.display_source_code(ctx.db(), module.into()).ok()?;
61 acc.add(
62 AssistId("add_explicit_type", AssistKind::RefactorRewrite),
63 format!("Insert explicit type `{}`", inferred_type),
64 pat_range,
65 |builder| match ascribed_ty {
66 Some(ascribed_ty) => {
67 builder.replace(ascribed_ty.syntax().text_range(), inferred_type);
68 }
69 None => {
70 builder.insert(name_range.end(), format!(": {}", inferred_type));
71 }
72 },
73 )
74}
75
76#[cfg(test)]
77mod tests {
78 use super::*;
79
80 use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
81
82 #[test]
83 fn add_explicit_type_target() {
84 check_assist_target(add_explicit_type, "fn f() { let a<|> = 1; }", "a");
85 }
86
87 #[test]
88 fn add_explicit_type_works_for_simple_expr() {
89 check_assist(add_explicit_type, "fn f() { let a<|> = 1; }", "fn f() { let a: i32 = 1; }");
90 }
91
92 #[test]
93 fn add_explicit_type_works_for_underscore() {
94 check_assist(
95 add_explicit_type,
96 "fn f() { let a<|>: _ = 1; }",
97 "fn f() { let a: i32 = 1; }",
98 );
99 }
100
101 #[test]
102 fn add_explicit_type_works_for_nested_underscore() {
103 check_assist(
104 add_explicit_type,
105 r#"
106 enum Option<T> {
107 Some(T),
108 None
109 }
110
111 fn f() {
112 let a<|>: Option<_> = Option::Some(1);
113 }"#,
114 r#"
115 enum Option<T> {
116 Some(T),
117 None
118 }
119
120 fn f() {
121 let a: Option<i32> = Option::Some(1);
122 }"#,
123 );
124 }
125
126 #[test]
127 fn add_explicit_type_works_for_macro_call() {
128 check_assist(
129 add_explicit_type,
130 r"macro_rules! v { () => {0u64} } fn f() { let a<|> = v!(); }",
131 r"macro_rules! v { () => {0u64} } fn f() { let a: u64 = v!(); }",
132 );
133 }
134
135 #[test]
136 fn add_explicit_type_works_for_macro_call_recursive() {
137 check_assist(
138 add_explicit_type,
139 r#"macro_rules! u { () => {0u64} } macro_rules! v { () => {u!()} } fn f() { let a<|> = v!(); }"#,
140 r#"macro_rules! u { () => {0u64} } macro_rules! v { () => {u!()} } fn f() { let a: u64 = v!(); }"#,
141 );
142 }
143
144 #[test]
145 fn add_explicit_type_not_applicable_if_ty_not_inferred() {
146 check_assist_not_applicable(add_explicit_type, "fn f() { let a<|> = None; }");
147 }
148
149 #[test]
150 fn add_explicit_type_not_applicable_if_ty_already_specified() {
151 check_assist_not_applicable(add_explicit_type, "fn f() { let a<|>: i32 = 1; }");
152 }
153
154 #[test]
155 fn add_explicit_type_not_applicable_if_specified_ty_is_tuple() {
156 check_assist_not_applicable(add_explicit_type, "fn f() { let a<|>: (i32, i32) = (3, 4); }");
157 }
158
159 #[test]
160 fn add_explicit_type_not_applicable_if_cursor_after_equals() {
161 check_assist_not_applicable(
162 add_explicit_type,
163 "fn f() {let a =<|> match 1 {2 => 3, 3 => 5};}",
164 )
165 }
166
167 #[test]
168 fn add_explicit_type_not_applicable_if_cursor_before_let() {
169 check_assist_not_applicable(
170 add_explicit_type,
171 "fn f() <|>{let a = match 1 {2 => 3, 3 => 5};}",
172 )
173 }
174
175 #[test]
176 fn closure_parameters_are_not_added() {
177 check_assist_not_applicable(
178 add_explicit_type,
179 r#"
180fn main() {
181 let multiply_by_two<|> = |i| i * 3;
182 let six = multiply_by_two(2);
183}"#,
184 )
185 }
186
187 #[test]
188 fn default_generics_should_not_be_added() {
189 check_assist(
190 add_explicit_type,
191 r#"
192struct Test<K, T = u8> {
193 k: K,
194 t: T,
195}
196
197fn main() {
198 let test<|> = Test { t: 23u8, k: 33 };
199}"#,
200 r#"
201struct Test<K, T = u8> {
202 k: K,
203 t: T,
204}
205
206fn main() {
207 let test: Test<i32> = Test { t: 23u8, k: 33 };
208}"#,
209 );
210 }
211}
diff --git a/crates/assists/src/handlers/add_missing_impl_members.rs b/crates/assists/src/handlers/add_missing_impl_members.rs
new file mode 100644
index 000000000..81b61ebf8
--- /dev/null
+++ b/crates/assists/src/handlers/add_missing_impl_members.rs
@@ -0,0 +1,711 @@
1use hir::HasSource;
2use syntax::{
3 ast::{
4 self,
5 edit::{self, AstNodeEdit, IndentLevel},
6 make, AstNode, NameOwner,
7 },
8 SmolStr,
9};
10
11use crate::{
12 assist_context::{AssistContext, Assists},
13 ast_transform::{self, AstTransform, QualifyPaths, SubstituteTypeParams},
14 utils::{get_missing_assoc_items, render_snippet, resolve_target_trait, Cursor},
15 AssistId, AssistKind,
16};
17
18#[derive(PartialEq)]
19enum AddMissingImplMembersMode {
20 DefaultMethodsOnly,
21 NoDefaultMethods,
22}
23
24// Assist: add_impl_missing_members
25//
26// Adds scaffold for required impl members.
27//
28// ```
29// trait Trait<T> {
30// Type X;
31// fn foo(&self) -> T;
32// fn bar(&self) {}
33// }
34//
35// impl Trait<u32> for () {<|>
36//
37// }
38// ```
39// ->
40// ```
41// trait Trait<T> {
42// Type X;
43// fn foo(&self) -> T;
44// fn bar(&self) {}
45// }
46//
47// impl Trait<u32> for () {
48// fn foo(&self) -> u32 {
49// ${0:todo!()}
50// }
51//
52// }
53// ```
54pub(crate) fn add_missing_impl_members(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
55 add_missing_impl_members_inner(
56 acc,
57 ctx,
58 AddMissingImplMembersMode::NoDefaultMethods,
59 "add_impl_missing_members",
60 "Implement missing members",
61 )
62}
63
64// Assist: add_impl_default_members
65//
66// Adds scaffold for overriding default impl members.
67//
68// ```
69// trait Trait {
70// Type X;
71// fn foo(&self);
72// fn bar(&self) {}
73// }
74//
75// impl Trait for () {
76// Type X = ();
77// fn foo(&self) {}<|>
78//
79// }
80// ```
81// ->
82// ```
83// trait Trait {
84// Type X;
85// fn foo(&self);
86// fn bar(&self) {}
87// }
88//
89// impl Trait for () {
90// Type X = ();
91// fn foo(&self) {}
92// $0fn bar(&self) {}
93//
94// }
95// ```
96pub(crate) fn add_missing_default_members(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
97 add_missing_impl_members_inner(
98 acc,
99 ctx,
100 AddMissingImplMembersMode::DefaultMethodsOnly,
101 "add_impl_default_members",
102 "Implement default members",
103 )
104}
105
106fn add_missing_impl_members_inner(
107 acc: &mut Assists,
108 ctx: &AssistContext,
109 mode: AddMissingImplMembersMode,
110 assist_id: &'static str,
111 label: &'static str,
112) -> Option<()> {
113 let _p = profile::span("add_missing_impl_members_inner");
114 let impl_def = ctx.find_node_at_offset::<ast::Impl>()?;
115 let impl_item_list = impl_def.assoc_item_list()?;
116
117 let trait_ = resolve_target_trait(&ctx.sema, &impl_def)?;
118
119 let def_name = |item: &ast::AssocItem| -> Option<SmolStr> {
120 match item {
121 ast::AssocItem::Fn(def) => def.name(),
122 ast::AssocItem::TypeAlias(def) => def.name(),
123 ast::AssocItem::Const(def) => def.name(),
124 ast::AssocItem::MacroCall(_) => None,
125 }
126 .map(|it| it.text().clone())
127 };
128
129 let missing_items = get_missing_assoc_items(&ctx.sema, &impl_def)
130 .iter()
131 .map(|i| match i {
132 hir::AssocItem::Function(i) => ast::AssocItem::Fn(i.source(ctx.db()).value),
133 hir::AssocItem::TypeAlias(i) => ast::AssocItem::TypeAlias(i.source(ctx.db()).value),
134 hir::AssocItem::Const(i) => ast::AssocItem::Const(i.source(ctx.db()).value),
135 })
136 .filter(|t| def_name(&t).is_some())
137 .filter(|t| match t {
138 ast::AssocItem::Fn(def) => match mode {
139 AddMissingImplMembersMode::DefaultMethodsOnly => def.body().is_some(),
140 AddMissingImplMembersMode::NoDefaultMethods => def.body().is_none(),
141 },
142 _ => mode == AddMissingImplMembersMode::NoDefaultMethods,
143 })
144 .collect::<Vec<_>>();
145
146 if missing_items.is_empty() {
147 return None;
148 }
149
150 let target = impl_def.syntax().text_range();
151 acc.add(AssistId(assist_id, AssistKind::QuickFix), label, target, |builder| {
152 let n_existing_items = impl_item_list.assoc_items().count();
153 let source_scope = ctx.sema.scope_for_def(trait_);
154 let target_scope = ctx.sema.scope(impl_item_list.syntax());
155 let ast_transform = QualifyPaths::new(&target_scope, &source_scope)
156 .or(SubstituteTypeParams::for_trait_impl(&source_scope, trait_, impl_def));
157 let items = missing_items
158 .into_iter()
159 .map(|it| ast_transform::apply(&*ast_transform, it))
160 .map(|it| match it {
161 ast::AssocItem::Fn(def) => ast::AssocItem::Fn(add_body(def)),
162 ast::AssocItem::TypeAlias(def) => ast::AssocItem::TypeAlias(def.remove_bounds()),
163 _ => it,
164 })
165 .map(|it| edit::remove_attrs_and_docs(&it));
166 let new_impl_item_list = impl_item_list.append_items(items);
167 let first_new_item = new_impl_item_list.assoc_items().nth(n_existing_items).unwrap();
168
169 let original_range = impl_item_list.syntax().text_range();
170 match ctx.config.snippet_cap {
171 None => builder.replace(original_range, new_impl_item_list.to_string()),
172 Some(cap) => {
173 let mut cursor = Cursor::Before(first_new_item.syntax());
174 let placeholder;
175 if let ast::AssocItem::Fn(func) = &first_new_item {
176 if let Some(m) = func.syntax().descendants().find_map(ast::MacroCall::cast) {
177 if m.syntax().text() == "todo!()" {
178 placeholder = m;
179 cursor = Cursor::Replace(placeholder.syntax());
180 }
181 }
182 }
183 builder.replace_snippet(
184 cap,
185 original_range,
186 render_snippet(cap, new_impl_item_list.syntax(), cursor),
187 )
188 }
189 };
190 })
191}
192
193fn add_body(fn_def: ast::Fn) -> ast::Fn {
194 if fn_def.body().is_some() {
195 return fn_def;
196 }
197 let body = make::block_expr(None, Some(make::expr_todo())).indent(IndentLevel(1));
198 fn_def.with_body(body)
199}
200
201#[cfg(test)]
202mod tests {
203 use crate::tests::{check_assist, check_assist_not_applicable};
204
205 use super::*;
206
207 #[test]
208 fn test_add_missing_impl_members() {
209 check_assist(
210 add_missing_impl_members,
211 r#"
212trait Foo {
213 type Output;
214
215 const CONST: usize = 42;
216
217 fn foo(&self);
218 fn bar(&self);
219 fn baz(&self);
220}
221
222struct S;
223
224impl Foo for S {
225 fn bar(&self) {}
226<|>
227}"#,
228 r#"
229trait Foo {
230 type Output;
231
232 const CONST: usize = 42;
233
234 fn foo(&self);
235 fn bar(&self);
236 fn baz(&self);
237}
238
239struct S;
240
241impl Foo for S {
242 fn bar(&self) {}
243 $0type Output;
244 const CONST: usize = 42;
245 fn foo(&self) {
246 todo!()
247 }
248 fn baz(&self) {
249 todo!()
250 }
251
252}"#,
253 );
254 }
255
256 #[test]
257 fn test_copied_overriden_members() {
258 check_assist(
259 add_missing_impl_members,
260 r#"
261trait Foo {
262 fn foo(&self);
263 fn bar(&self) -> bool { true }
264 fn baz(&self) -> u32 { 42 }
265}
266
267struct S;
268
269impl Foo for S {
270 fn bar(&self) {}
271<|>
272}"#,
273 r#"
274trait Foo {
275 fn foo(&self);
276 fn bar(&self) -> bool { true }
277 fn baz(&self) -> u32 { 42 }
278}
279
280struct S;
281
282impl Foo for S {
283 fn bar(&self) {}
284 fn foo(&self) {
285 ${0:todo!()}
286 }
287
288}"#,
289 );
290 }
291
292 #[test]
293 fn test_empty_impl_def() {
294 check_assist(
295 add_missing_impl_members,
296 r#"
297trait Foo { fn foo(&self); }
298struct S;
299impl Foo for S { <|> }"#,
300 r#"
301trait Foo { fn foo(&self); }
302struct S;
303impl Foo for S {
304 fn foo(&self) {
305 ${0:todo!()}
306 }
307}"#,
308 );
309 }
310
311 #[test]
312 fn fill_in_type_params_1() {
313 check_assist(
314 add_missing_impl_members,
315 r#"
316trait Foo<T> { fn foo(&self, t: T) -> &T; }
317struct S;
318impl Foo<u32> for S { <|> }"#,
319 r#"
320trait Foo<T> { fn foo(&self, t: T) -> &T; }
321struct S;
322impl Foo<u32> for S {
323 fn foo(&self, t: u32) -> &u32 {
324 ${0:todo!()}
325 }
326}"#,
327 );
328 }
329
330 #[test]
331 fn fill_in_type_params_2() {
332 check_assist(
333 add_missing_impl_members,
334 r#"
335trait Foo<T> { fn foo(&self, t: T) -> &T; }
336struct S;
337impl<U> Foo<U> for S { <|> }"#,
338 r#"
339trait Foo<T> { fn foo(&self, t: T) -> &T; }
340struct S;
341impl<U> Foo<U> for S {
342 fn foo(&self, t: U) -> &U {
343 ${0:todo!()}
344 }
345}"#,
346 );
347 }
348
349 #[test]
350 fn test_cursor_after_empty_impl_def() {
351 check_assist(
352 add_missing_impl_members,
353 r#"
354trait Foo { fn foo(&self); }
355struct S;
356impl Foo for S {}<|>"#,
357 r#"
358trait Foo { fn foo(&self); }
359struct S;
360impl Foo for S {
361 fn foo(&self) {
362 ${0:todo!()}
363 }
364}"#,
365 )
366 }
367
368 #[test]
369 fn test_qualify_path_1() {
370 check_assist(
371 add_missing_impl_members,
372 r#"
373mod foo {
374 pub struct Bar;
375 trait Foo { fn foo(&self, bar: Bar); }
376}
377struct S;
378impl foo::Foo for S { <|> }"#,
379 r#"
380mod foo {
381 pub struct Bar;
382 trait Foo { fn foo(&self, bar: Bar); }
383}
384struct S;
385impl foo::Foo for S {
386 fn foo(&self, bar: foo::Bar) {
387 ${0:todo!()}
388 }
389}"#,
390 );
391 }
392
393 #[test]
394 fn test_qualify_path_generic() {
395 check_assist(
396 add_missing_impl_members,
397 r#"
398mod foo {
399 pub struct Bar<T>;
400 trait Foo { fn foo(&self, bar: Bar<u32>); }
401}
402struct S;
403impl foo::Foo for S { <|> }"#,
404 r#"
405mod foo {
406 pub struct Bar<T>;
407 trait Foo { fn foo(&self, bar: Bar<u32>); }
408}
409struct S;
410impl foo::Foo for S {
411 fn foo(&self, bar: foo::Bar<u32>) {
412 ${0:todo!()}
413 }
414}"#,
415 );
416 }
417
418 #[test]
419 fn test_qualify_path_and_substitute_param() {
420 check_assist(
421 add_missing_impl_members,
422 r#"
423mod foo {
424 pub struct Bar<T>;
425 trait Foo<T> { fn foo(&self, bar: Bar<T>); }
426}
427struct S;
428impl foo::Foo<u32> for S { <|> }"#,
429 r#"
430mod foo {
431 pub struct Bar<T>;
432 trait Foo<T> { fn foo(&self, bar: Bar<T>); }
433}
434struct S;
435impl foo::Foo<u32> for S {
436 fn foo(&self, bar: foo::Bar<u32>) {
437 ${0:todo!()}
438 }
439}"#,
440 );
441 }
442
443 #[test]
444 fn test_substitute_param_no_qualify() {
445 // when substituting params, the substituted param should not be qualified!
446 check_assist(
447 add_missing_impl_members,
448 r#"
449mod foo {
450 trait Foo<T> { fn foo(&self, bar: T); }
451 pub struct Param;
452}
453struct Param;
454struct S;
455impl foo::Foo<Param> for S { <|> }"#,
456 r#"
457mod foo {
458 trait Foo<T> { fn foo(&self, bar: T); }
459 pub struct Param;
460}
461struct Param;
462struct S;
463impl foo::Foo<Param> for S {
464 fn foo(&self, bar: Param) {
465 ${0:todo!()}
466 }
467}"#,
468 );
469 }
470
471 #[test]
472 fn test_qualify_path_associated_item() {
473 check_assist(
474 add_missing_impl_members,
475 r#"
476mod foo {
477 pub struct Bar<T>;
478 impl Bar<T> { type Assoc = u32; }
479 trait Foo { fn foo(&self, bar: Bar<u32>::Assoc); }
480}
481struct S;
482impl foo::Foo for S { <|> }"#,
483 r#"
484mod foo {
485 pub struct Bar<T>;
486 impl Bar<T> { type Assoc = u32; }
487 trait Foo { fn foo(&self, bar: Bar<u32>::Assoc); }
488}
489struct S;
490impl foo::Foo for S {
491 fn foo(&self, bar: foo::Bar<u32>::Assoc) {
492 ${0:todo!()}
493 }
494}"#,
495 );
496 }
497
498 #[test]
499 fn test_qualify_path_nested() {
500 check_assist(
501 add_missing_impl_members,
502 r#"
503mod foo {
504 pub struct Bar<T>;
505 pub struct Baz;
506 trait Foo { fn foo(&self, bar: Bar<Baz>); }
507}
508struct S;
509impl foo::Foo for S { <|> }"#,
510 r#"
511mod foo {
512 pub struct Bar<T>;
513 pub struct Baz;
514 trait Foo { fn foo(&self, bar: Bar<Baz>); }
515}
516struct S;
517impl foo::Foo for S {
518 fn foo(&self, bar: foo::Bar<foo::Baz>) {
519 ${0:todo!()}
520 }
521}"#,
522 );
523 }
524
525 #[test]
526 fn test_qualify_path_fn_trait_notation() {
527 check_assist(
528 add_missing_impl_members,
529 r#"
530mod foo {
531 pub trait Fn<Args> { type Output; }
532 trait Foo { fn foo(&self, bar: dyn Fn(u32) -> i32); }
533}
534struct S;
535impl foo::Foo for S { <|> }"#,
536 r#"
537mod foo {
538 pub trait Fn<Args> { type Output; }
539 trait Foo { fn foo(&self, bar: dyn Fn(u32) -> i32); }
540}
541struct S;
542impl foo::Foo for S {
543 fn foo(&self, bar: dyn Fn(u32) -> i32) {
544 ${0:todo!()}
545 }
546}"#,
547 );
548 }
549
550 #[test]
551 fn test_empty_trait() {
552 check_assist_not_applicable(
553 add_missing_impl_members,
554 r#"
555trait Foo;
556struct S;
557impl Foo for S { <|> }"#,
558 )
559 }
560
561 #[test]
562 fn test_ignore_unnamed_trait_members_and_default_methods() {
563 check_assist_not_applicable(
564 add_missing_impl_members,
565 r#"
566trait Foo {
567 fn (arg: u32);
568 fn valid(some: u32) -> bool { false }
569}
570struct S;
571impl Foo for S { <|> }"#,
572 )
573 }
574
575 #[test]
576 fn test_with_docstring_and_attrs() {
577 check_assist(
578 add_missing_impl_members,
579 r#"
580#[doc(alias = "test alias")]
581trait Foo {
582 /// doc string
583 type Output;
584
585 #[must_use]
586 fn foo(&self);
587}
588struct S;
589impl Foo for S {}<|>"#,
590 r#"
591#[doc(alias = "test alias")]
592trait Foo {
593 /// doc string
594 type Output;
595
596 #[must_use]
597 fn foo(&self);
598}
599struct S;
600impl Foo for S {
601 $0type Output;
602 fn foo(&self) {
603 todo!()
604 }
605}"#,
606 )
607 }
608
609 #[test]
610 fn test_default_methods() {
611 check_assist(
612 add_missing_default_members,
613 r#"
614trait Foo {
615 type Output;
616
617 const CONST: usize = 42;
618
619 fn valid(some: u32) -> bool { false }
620 fn foo(some: u32) -> bool;
621}
622struct S;
623impl Foo for S { <|> }"#,
624 r#"
625trait Foo {
626 type Output;
627
628 const CONST: usize = 42;
629
630 fn valid(some: u32) -> bool { false }
631 fn foo(some: u32) -> bool;
632}
633struct S;
634impl Foo for S {
635 $0fn valid(some: u32) -> bool { false }
636}"#,
637 )
638 }
639
640 #[test]
641 fn test_generic_single_default_parameter() {
642 check_assist(
643 add_missing_impl_members,
644 r#"
645trait Foo<T = Self> {
646 fn bar(&self, other: &T);
647}
648
649struct S;
650impl Foo for S { <|> }"#,
651 r#"
652trait Foo<T = Self> {
653 fn bar(&self, other: &T);
654}
655
656struct S;
657impl Foo for S {
658 fn bar(&self, other: &Self) {
659 ${0:todo!()}
660 }
661}"#,
662 )
663 }
664
665 #[test]
666 fn test_generic_default_parameter_is_second() {
667 check_assist(
668 add_missing_impl_members,
669 r#"
670trait Foo<T1, T2 = Self> {
671 fn bar(&self, this: &T1, that: &T2);
672}
673
674struct S<T>;
675impl Foo<T> for S<T> { <|> }"#,
676 r#"
677trait Foo<T1, T2 = Self> {
678 fn bar(&self, this: &T1, that: &T2);
679}
680
681struct S<T>;
682impl Foo<T> for S<T> {
683 fn bar(&self, this: &T, that: &Self) {
684 ${0:todo!()}
685 }
686}"#,
687 )
688 }
689
690 #[test]
691 fn test_assoc_type_bounds_are_removed() {
692 check_assist(
693 add_missing_impl_members,
694 r#"
695trait Tr {
696 type Ty: Copy + 'static;
697}
698
699impl Tr for ()<|> {
700}"#,
701 r#"
702trait Tr {
703 type Ty: Copy + 'static;
704}
705
706impl Tr for () {
707 $0type Ty;
708}"#,
709 )
710 }
711}
diff --git a/crates/assists/src/handlers/add_turbo_fish.rs b/crates/assists/src/handlers/add_turbo_fish.rs
new file mode 100644
index 000000000..f4f997d8e
--- /dev/null
+++ b/crates/assists/src/handlers/add_turbo_fish.rs
@@ -0,0 +1,164 @@
1use ide_db::defs::{classify_name_ref, Definition, NameRefClass};
2use syntax::{ast, AstNode, SyntaxKind, T};
3use test_utils::mark;
4
5use crate::{
6 assist_context::{AssistContext, Assists},
7 AssistId, AssistKind,
8};
9
10// Assist: add_turbo_fish
11//
12// Adds `::<_>` to a call of a generic method or function.
13//
14// ```
15// fn make<T>() -> T { todo!() }
16// fn main() {
17// let x = make<|>();
18// }
19// ```
20// ->
21// ```
22// fn make<T>() -> T { todo!() }
23// fn main() {
24// let x = make::<${0:_}>();
25// }
26// ```
27pub(crate) fn add_turbo_fish(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
28 let ident = ctx.find_token_at_offset(SyntaxKind::IDENT).or_else(|| {
29 let arg_list = ctx.find_node_at_offset::<ast::ArgList>()?;
30 if arg_list.args().count() > 0 {
31 return None;
32 }
33 mark::hit!(add_turbo_fish_after_call);
34 arg_list.l_paren_token()?.prev_token().filter(|it| it.kind() == SyntaxKind::IDENT)
35 })?;
36 let next_token = ident.next_token()?;
37 if next_token.kind() == T![::] {
38 mark::hit!(add_turbo_fish_one_fish_is_enough);
39 return None;
40 }
41 let name_ref = ast::NameRef::cast(ident.parent())?;
42 let def = match classify_name_ref(&ctx.sema, &name_ref)? {
43 NameRefClass::Definition(def) => def,
44 NameRefClass::ExternCrate(_) | NameRefClass::FieldShorthand { .. } => return None,
45 };
46 let fun = match def {
47 Definition::ModuleDef(hir::ModuleDef::Function(it)) => it,
48 _ => return None,
49 };
50 let generics = hir::GenericDef::Function(fun).params(ctx.sema.db);
51 if generics.is_empty() {
52 mark::hit!(add_turbo_fish_non_generic);
53 return None;
54 }
55 acc.add(
56 AssistId("add_turbo_fish", AssistKind::RefactorRewrite),
57 "Add `::<>`",
58 ident.text_range(),
59 |builder| match ctx.config.snippet_cap {
60 Some(cap) => builder.insert_snippet(cap, ident.text_range().end(), "::<${0:_}>"),
61 None => builder.insert(ident.text_range().end(), "::<_>"),
62 },
63 )
64}
65
66#[cfg(test)]
67mod tests {
68 use crate::tests::{check_assist, check_assist_not_applicable};
69
70 use super::*;
71 use test_utils::mark;
72
73 #[test]
74 fn add_turbo_fish_function() {
75 check_assist(
76 add_turbo_fish,
77 r#"
78fn make<T>() -> T {}
79fn main() {
80 make<|>();
81}
82"#,
83 r#"
84fn make<T>() -> T {}
85fn main() {
86 make::<${0:_}>();
87}
88"#,
89 );
90 }
91
92 #[test]
93 fn add_turbo_fish_after_call() {
94 mark::check!(add_turbo_fish_after_call);
95 check_assist(
96 add_turbo_fish,
97 r#"
98fn make<T>() -> T {}
99fn main() {
100 make()<|>;
101}
102"#,
103 r#"
104fn make<T>() -> T {}
105fn main() {
106 make::<${0:_}>();
107}
108"#,
109 );
110 }
111
112 #[test]
113 fn add_turbo_fish_method() {
114 check_assist(
115 add_turbo_fish,
116 r#"
117struct S;
118impl S {
119 fn make<T>(&self) -> T {}
120}
121fn main() {
122 S.make<|>();
123}
124"#,
125 r#"
126struct S;
127impl S {
128 fn make<T>(&self) -> T {}
129}
130fn main() {
131 S.make::<${0:_}>();
132}
133"#,
134 );
135 }
136
137 #[test]
138 fn add_turbo_fish_one_fish_is_enough() {
139 mark::check!(add_turbo_fish_one_fish_is_enough);
140 check_assist_not_applicable(
141 add_turbo_fish,
142 r#"
143fn make<T>() -> T {}
144fn main() {
145 make<|>::<()>();
146}
147"#,
148 );
149 }
150
151 #[test]
152 fn add_turbo_fish_non_generic() {
153 mark::check!(add_turbo_fish_non_generic);
154 check_assist_not_applicable(
155 add_turbo_fish,
156 r#"
157fn make() -> () {}
158fn main() {
159 make<|>();
160}
161"#,
162 );
163 }
164}
diff --git a/crates/assists/src/handlers/apply_demorgan.rs b/crates/assists/src/handlers/apply_demorgan.rs
new file mode 100644
index 000000000..1a6fdafda
--- /dev/null
+++ b/crates/assists/src/handlers/apply_demorgan.rs
@@ -0,0 +1,93 @@
1use syntax::ast::{self, AstNode};
2
3use crate::{utils::invert_boolean_expression, AssistContext, AssistId, AssistKind, Assists};
4
5// Assist: apply_demorgan
6//
7// Apply https://en.wikipedia.org/wiki/De_Morgan%27s_laws[De Morgan's law].
8// This transforms expressions of the form `!l || !r` into `!(l && r)`.
9// This also works with `&&`. This assist can only be applied with the cursor
10// on either `||` or `&&`, with both operands being a negation of some kind.
11// This means something of the form `!x` or `x != y`.
12//
13// ```
14// fn main() {
15// if x != 4 ||<|> !y {}
16// }
17// ```
18// ->
19// ```
20// fn main() {
21// if !(x == 4 && y) {}
22// }
23// ```
24pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
25 let expr = ctx.find_node_at_offset::<ast::BinExpr>()?;
26 let op = expr.op_kind()?;
27 let op_range = expr.op_token()?.text_range();
28 let opposite_op = opposite_logic_op(op)?;
29 let cursor_in_range = op_range.contains_range(ctx.frange.range);
30 if !cursor_in_range {
31 return None;
32 }
33
34 let lhs = expr.lhs()?;
35 let lhs_range = lhs.syntax().text_range();
36 let not_lhs = invert_boolean_expression(lhs);
37
38 let rhs = expr.rhs()?;
39 let rhs_range = rhs.syntax().text_range();
40 let not_rhs = invert_boolean_expression(rhs);
41
42 acc.add(
43 AssistId("apply_demorgan", AssistKind::RefactorRewrite),
44 "Apply De Morgan's law",
45 op_range,
46 |edit| {
47 edit.replace(op_range, opposite_op);
48 edit.replace(lhs_range, format!("!({}", not_lhs.syntax().text()));
49 edit.replace(rhs_range, format!("{})", not_rhs.syntax().text()));
50 },
51 )
52}
53
54// Return the opposite text for a given logical operator, if it makes sense
55fn opposite_logic_op(kind: ast::BinOp) -> Option<&'static str> {
56 match kind {
57 ast::BinOp::BooleanOr => Some("&&"),
58 ast::BinOp::BooleanAnd => Some("||"),
59 _ => None,
60 }
61}
62
63#[cfg(test)]
64mod tests {
65 use super::*;
66
67 use crate::tests::{check_assist, check_assist_not_applicable};
68
69 #[test]
70 fn demorgan_turns_and_into_or() {
71 check_assist(apply_demorgan, "fn f() { !x &&<|> !x }", "fn f() { !(x || x) }")
72 }
73
74 #[test]
75 fn demorgan_turns_or_into_and() {
76 check_assist(apply_demorgan, "fn f() { !x ||<|> !x }", "fn f() { !(x && x) }")
77 }
78
79 #[test]
80 fn demorgan_removes_inequality() {
81 check_assist(apply_demorgan, "fn f() { x != x ||<|> !x }", "fn f() { !(x == x && x) }")
82 }
83
84 #[test]
85 fn demorgan_general_case() {
86 check_assist(apply_demorgan, "fn f() { x ||<|> x }", "fn f() { !(!x && !x) }")
87 }
88
89 #[test]
90 fn demorgan_doesnt_apply_with_cursor_not_on_op() {
91 check_assist_not_applicable(apply_demorgan, "fn f() { <|> !x || !x }")
92 }
93}
diff --git a/crates/assists/src/handlers/auto_import.rs b/crates/assists/src/handlers/auto_import.rs
new file mode 100644
index 000000000..cce789972
--- /dev/null
+++ b/crates/assists/src/handlers/auto_import.rs
@@ -0,0 +1,1088 @@
1use std::collections::BTreeSet;
2
3use either::Either;
4use hir::{
5 AsAssocItem, AssocItemContainer, ModPath, Module, ModuleDef, PathResolution, Semantics, Trait,
6 Type,
7};
8use ide_db::{imports_locator, RootDatabase};
9use rustc_hash::FxHashSet;
10use syntax::{
11 ast::{self, AstNode},
12 SyntaxNode,
13};
14
15use crate::{
16 utils::insert_use_statement, AssistContext, AssistId, AssistKind, Assists, GroupLabel,
17};
18
19// Assist: auto_import
20//
21// If the name is unresolved, provides all possible imports for it.
22//
23// ```
24// fn main() {
25// let map = HashMap<|>::new();
26// }
27// # pub mod std { pub mod collections { pub struct HashMap { } } }
28// ```
29// ->
30// ```
31// use std::collections::HashMap;
32//
33// fn main() {
34// let map = HashMap::new();
35// }
36// # pub mod std { pub mod collections { pub struct HashMap { } } }
37// ```
38pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
39 let auto_import_assets = AutoImportAssets::new(ctx)?;
40 let proposed_imports = auto_import_assets.search_for_imports(ctx);
41 if proposed_imports.is_empty() {
42 return None;
43 }
44
45 let range = ctx.sema.original_range(&auto_import_assets.syntax_under_caret).range;
46 let group = auto_import_assets.get_import_group_message();
47 for import in proposed_imports {
48 acc.add_group(
49 &group,
50 AssistId("auto_import", AssistKind::QuickFix),
51 format!("Import `{}`", &import),
52 range,
53 |builder| {
54 insert_use_statement(
55 &auto_import_assets.syntax_under_caret,
56 &import,
57 ctx,
58 builder.text_edit_builder(),
59 );
60 },
61 );
62 }
63 Some(())
64}
65
66#[derive(Debug)]
67struct AutoImportAssets {
68 import_candidate: ImportCandidate,
69 module_with_name_to_import: Module,
70 syntax_under_caret: SyntaxNode,
71}
72
73impl AutoImportAssets {
74 fn new(ctx: &AssistContext) -> Option<Self> {
75 if let Some(path_under_caret) = ctx.find_node_at_offset_with_descend::<ast::Path>() {
76 Self::for_regular_path(path_under_caret, &ctx)
77 } else {
78 Self::for_method_call(ctx.find_node_at_offset_with_descend()?, &ctx)
79 }
80 }
81
82 fn for_method_call(method_call: ast::MethodCallExpr, ctx: &AssistContext) -> Option<Self> {
83 let syntax_under_caret = method_call.syntax().to_owned();
84 let module_with_name_to_import = ctx.sema.scope(&syntax_under_caret).module()?;
85 Some(Self {
86 import_candidate: ImportCandidate::for_method_call(&ctx.sema, &method_call)?,
87 module_with_name_to_import,
88 syntax_under_caret,
89 })
90 }
91
92 fn for_regular_path(path_under_caret: ast::Path, ctx: &AssistContext) -> Option<Self> {
93 let syntax_under_caret = path_under_caret.syntax().to_owned();
94 if syntax_under_caret.ancestors().find_map(ast::Use::cast).is_some() {
95 return None;
96 }
97
98 let module_with_name_to_import = ctx.sema.scope(&syntax_under_caret).module()?;
99 Some(Self {
100 import_candidate: ImportCandidate::for_regular_path(&ctx.sema, &path_under_caret)?,
101 module_with_name_to_import,
102 syntax_under_caret,
103 })
104 }
105
106 fn get_search_query(&self) -> &str {
107 match &self.import_candidate {
108 ImportCandidate::UnqualifiedName(name) => name,
109 ImportCandidate::QualifierStart(qualifier_start) => qualifier_start,
110 ImportCandidate::TraitAssocItem(_, trait_assoc_item_name) => trait_assoc_item_name,
111 ImportCandidate::TraitMethod(_, trait_method_name) => trait_method_name,
112 }
113 }
114
115 fn get_import_group_message(&self) -> GroupLabel {
116 let name = match &self.import_candidate {
117 ImportCandidate::UnqualifiedName(name) => format!("Import {}", name),
118 ImportCandidate::QualifierStart(qualifier_start) => {
119 format!("Import {}", qualifier_start)
120 }
121 ImportCandidate::TraitAssocItem(_, trait_assoc_item_name) => {
122 format!("Import a trait for item {}", trait_assoc_item_name)
123 }
124 ImportCandidate::TraitMethod(_, trait_method_name) => {
125 format!("Import a trait for method {}", trait_method_name)
126 }
127 };
128 GroupLabel(name)
129 }
130
131 fn search_for_imports(&self, ctx: &AssistContext) -> BTreeSet<ModPath> {
132 let _p = profile::span("auto_import::search_for_imports");
133 let db = ctx.db();
134 let current_crate = self.module_with_name_to_import.krate();
135 imports_locator::find_imports(&ctx.sema, current_crate, &self.get_search_query())
136 .into_iter()
137 .filter_map(|candidate| match &self.import_candidate {
138 ImportCandidate::TraitAssocItem(assoc_item_type, _) => {
139 let located_assoc_item = match candidate {
140 Either::Left(ModuleDef::Function(located_function)) => located_function
141 .as_assoc_item(db)
142 .map(|assoc| assoc.container(db))
143 .and_then(Self::assoc_to_trait),
144 Either::Left(ModuleDef::Const(located_const)) => located_const
145 .as_assoc_item(db)
146 .map(|assoc| assoc.container(db))
147 .and_then(Self::assoc_to_trait),
148 _ => None,
149 }?;
150
151 let mut trait_candidates = FxHashSet::default();
152 trait_candidates.insert(located_assoc_item.into());
153
154 assoc_item_type
155 .iterate_path_candidates(
156 db,
157 current_crate,
158 &trait_candidates,
159 None,
160 |_, assoc| Self::assoc_to_trait(assoc.container(db)),
161 )
162 .map(ModuleDef::from)
163 .map(Either::Left)
164 }
165 ImportCandidate::TraitMethod(function_callee, _) => {
166 let located_assoc_item =
167 if let Either::Left(ModuleDef::Function(located_function)) = candidate {
168 located_function
169 .as_assoc_item(db)
170 .map(|assoc| assoc.container(db))
171 .and_then(Self::assoc_to_trait)
172 } else {
173 None
174 }?;
175
176 let mut trait_candidates = FxHashSet::default();
177 trait_candidates.insert(located_assoc_item.into());
178
179 function_callee
180 .iterate_method_candidates(
181 db,
182 current_crate,
183 &trait_candidates,
184 None,
185 |_, function| {
186 Self::assoc_to_trait(function.as_assoc_item(db)?.container(db))
187 },
188 )
189 .map(ModuleDef::from)
190 .map(Either::Left)
191 }
192 _ => Some(candidate),
193 })
194 .filter_map(|candidate| match candidate {
195 Either::Left(module_def) => {
196 self.module_with_name_to_import.find_use_path(db, module_def)
197 }
198 Either::Right(macro_def) => {
199 self.module_with_name_to_import.find_use_path(db, macro_def)
200 }
201 })
202 .filter(|use_path| !use_path.segments.is_empty())
203 .take(20)
204 .collect::<BTreeSet<_>>()
205 }
206
207 fn assoc_to_trait(assoc: AssocItemContainer) -> Option<Trait> {
208 if let AssocItemContainer::Trait(extracted_trait) = assoc {
209 Some(extracted_trait)
210 } else {
211 None
212 }
213 }
214}
215
216#[derive(Debug)]
217enum ImportCandidate {
218 /// Simple name like 'HashMap'
219 UnqualifiedName(String),
220 /// First part of the qualified name.
221 /// For 'std::collections::HashMap', that will be 'std'.
222 QualifierStart(String),
223 /// A trait associated function (with no self parameter) or associated constant.
224 /// For 'test_mod::TestEnum::test_function', `Type` is the `test_mod::TestEnum` expression type
225 /// and `String` is the `test_function`
226 TraitAssocItem(Type, String),
227 /// A trait method with self parameter.
228 /// For 'test_enum.test_method()', `Type` is the `test_enum` expression type
229 /// and `String` is the `test_method`
230 TraitMethod(Type, String),
231}
232
233impl ImportCandidate {
234 fn for_method_call(
235 sema: &Semantics<RootDatabase>,
236 method_call: &ast::MethodCallExpr,
237 ) -> Option<Self> {
238 if sema.resolve_method_call(method_call).is_some() {
239 return None;
240 }
241 Some(Self::TraitMethod(
242 sema.type_of_expr(&method_call.expr()?)?,
243 method_call.name_ref()?.syntax().to_string(),
244 ))
245 }
246
247 fn for_regular_path(
248 sema: &Semantics<RootDatabase>,
249 path_under_caret: &ast::Path,
250 ) -> Option<Self> {
251 if sema.resolve_path(path_under_caret).is_some() {
252 return None;
253 }
254
255 let segment = path_under_caret.segment()?;
256 if let Some(qualifier) = path_under_caret.qualifier() {
257 let qualifier_start = qualifier.syntax().descendants().find_map(ast::NameRef::cast)?;
258 let qualifier_start_path =
259 qualifier_start.syntax().ancestors().find_map(ast::Path::cast)?;
260 if let Some(qualifier_start_resolution) = sema.resolve_path(&qualifier_start_path) {
261 let qualifier_resolution = if qualifier_start_path == qualifier {
262 qualifier_start_resolution
263 } else {
264 sema.resolve_path(&qualifier)?
265 };
266 if let PathResolution::Def(ModuleDef::Adt(assoc_item_path)) = qualifier_resolution {
267 Some(ImportCandidate::TraitAssocItem(
268 assoc_item_path.ty(sema.db),
269 segment.syntax().to_string(),
270 ))
271 } else {
272 None
273 }
274 } else {
275 Some(ImportCandidate::QualifierStart(qualifier_start.syntax().to_string()))
276 }
277 } else {
278 Some(ImportCandidate::UnqualifiedName(
279 segment.syntax().descendants().find_map(ast::NameRef::cast)?.syntax().to_string(),
280 ))
281 }
282 }
283}
284
285#[cfg(test)]
286mod tests {
287 use super::*;
288 use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target};
289
290 #[test]
291 fn applicable_when_found_an_import() {
292 check_assist(
293 auto_import,
294 r"
295 <|>PubStruct
296
297 pub mod PubMod {
298 pub struct PubStruct;
299 }
300 ",
301 r"
302 use PubMod::PubStruct;
303
304 PubStruct
305
306 pub mod PubMod {
307 pub struct PubStruct;
308 }
309 ",
310 );
311 }
312
313 #[test]
314 fn applicable_when_found_an_import_in_macros() {
315 check_assist(
316 auto_import,
317 r"
318 macro_rules! foo {
319 ($i:ident) => { fn foo(a: $i) {} }
320 }
321 foo!(Pub<|>Struct);
322
323 pub mod PubMod {
324 pub struct PubStruct;
325 }
326 ",
327 r"
328 use PubMod::PubStruct;
329
330 macro_rules! foo {
331 ($i:ident) => { fn foo(a: $i) {} }
332 }
333 foo!(PubStruct);
334
335 pub mod PubMod {
336 pub struct PubStruct;
337 }
338 ",
339 );
340 }
341
342 #[test]
343 fn auto_imports_are_merged() {
344 check_assist(
345 auto_import,
346 r"
347 use PubMod::PubStruct1;
348
349 struct Test {
350 test: Pub<|>Struct2<u8>,
351 }
352
353 pub mod PubMod {
354 pub struct PubStruct1;
355 pub struct PubStruct2<T> {
356 _t: T,
357 }
358 }
359 ",
360 r"
361 use PubMod::{PubStruct2, PubStruct1};
362
363 struct Test {
364 test: PubStruct2<u8>,
365 }
366
367 pub mod PubMod {
368 pub struct PubStruct1;
369 pub struct PubStruct2<T> {
370 _t: T,
371 }
372 }
373 ",
374 );
375 }
376
377 #[test]
378 fn applicable_when_found_multiple_imports() {
379 check_assist(
380 auto_import,
381 r"
382 PubSt<|>ruct
383
384 pub mod PubMod1 {
385 pub struct PubStruct;
386 }
387 pub mod PubMod2 {
388 pub struct PubStruct;
389 }
390 pub mod PubMod3 {
391 pub struct PubStruct;
392 }
393 ",
394 r"
395 use PubMod3::PubStruct;
396
397 PubStruct
398
399 pub mod PubMod1 {
400 pub struct PubStruct;
401 }
402 pub mod PubMod2 {
403 pub struct PubStruct;
404 }
405 pub mod PubMod3 {
406 pub struct PubStruct;
407 }
408 ",
409 );
410 }
411
412 #[test]
413 fn not_applicable_for_already_imported_types() {
414 check_assist_not_applicable(
415 auto_import,
416 r"
417 use PubMod::PubStruct;
418
419 PubStruct<|>
420
421 pub mod PubMod {
422 pub struct PubStruct;
423 }
424 ",
425 );
426 }
427
428 #[test]
429 fn not_applicable_for_types_with_private_paths() {
430 check_assist_not_applicable(
431 auto_import,
432 r"
433 PrivateStruct<|>
434
435 pub mod PubMod {
436 struct PrivateStruct;
437 }
438 ",
439 );
440 }
441
442 #[test]
443 fn not_applicable_when_no_imports_found() {
444 check_assist_not_applicable(
445 auto_import,
446 "
447 PubStruct<|>",
448 );
449 }
450
451 #[test]
452 fn not_applicable_in_import_statements() {
453 check_assist_not_applicable(
454 auto_import,
455 r"
456 use PubStruct<|>;
457
458 pub mod PubMod {
459 pub struct PubStruct;
460 }",
461 );
462 }
463
464 #[test]
465 fn function_import() {
466 check_assist(
467 auto_import,
468 r"
469 test_function<|>
470
471 pub mod PubMod {
472 pub fn test_function() {};
473 }
474 ",
475 r"
476 use PubMod::test_function;
477
478 test_function
479
480 pub mod PubMod {
481 pub fn test_function() {};
482 }
483 ",
484 );
485 }
486
487 #[test]
488 fn macro_import() {
489 check_assist(
490 auto_import,
491 r"
492//- /lib.rs crate:crate_with_macro
493#[macro_export]
494macro_rules! foo {
495 () => ()
496}
497
498//- /main.rs crate:main deps:crate_with_macro
499fn main() {
500 foo<|>
501}
502",
503 r"use crate_with_macro::foo;
504
505fn main() {
506 foo
507}
508",
509 );
510 }
511
512 #[test]
513 fn auto_import_target() {
514 check_assist_target(
515 auto_import,
516 r"
517 struct AssistInfo {
518 group_label: Option<<|>GroupLabel>,
519 }
520
521 mod m { pub struct GroupLabel; }
522 ",
523 "GroupLabel",
524 )
525 }
526
527 #[test]
528 fn not_applicable_when_path_start_is_imported() {
529 check_assist_not_applicable(
530 auto_import,
531 r"
532 pub mod mod1 {
533 pub mod mod2 {
534 pub mod mod3 {
535 pub struct TestStruct;
536 }
537 }
538 }
539
540 use mod1::mod2;
541 fn main() {
542 mod2::mod3::TestStruct<|>
543 }
544 ",
545 );
546 }
547
548 #[test]
549 fn not_applicable_for_imported_function() {
550 check_assist_not_applicable(
551 auto_import,
552 r"
553 pub mod test_mod {
554 pub fn test_function() {}
555 }
556
557 use test_mod::test_function;
558 fn main() {
559 test_function<|>
560 }
561 ",
562 );
563 }
564
565 #[test]
566 fn associated_struct_function() {
567 check_assist(
568 auto_import,
569 r"
570 mod test_mod {
571 pub struct TestStruct {}
572 impl TestStruct {
573 pub fn test_function() {}
574 }
575 }
576
577 fn main() {
578 TestStruct::test_function<|>
579 }
580 ",
581 r"
582 use test_mod::TestStruct;
583
584 mod test_mod {
585 pub struct TestStruct {}
586 impl TestStruct {
587 pub fn test_function() {}
588 }
589 }
590
591 fn main() {
592 TestStruct::test_function
593 }
594 ",
595 );
596 }
597
598 #[test]
599 fn associated_struct_const() {
600 check_assist(
601 auto_import,
602 r"
603 mod test_mod {
604 pub struct TestStruct {}
605 impl TestStruct {
606 const TEST_CONST: u8 = 42;
607 }
608 }
609
610 fn main() {
611 TestStruct::TEST_CONST<|>
612 }
613 ",
614 r"
615 use test_mod::TestStruct;
616
617 mod test_mod {
618 pub struct TestStruct {}
619 impl TestStruct {
620 const TEST_CONST: u8 = 42;
621 }
622 }
623
624 fn main() {
625 TestStruct::TEST_CONST
626 }
627 ",
628 );
629 }
630
631 #[test]
632 fn associated_trait_function() {
633 check_assist(
634 auto_import,
635 r"
636 mod test_mod {
637 pub trait TestTrait {
638 fn test_function();
639 }
640 pub struct TestStruct {}
641 impl TestTrait for TestStruct {
642 fn test_function() {}
643 }
644 }
645
646 fn main() {
647 test_mod::TestStruct::test_function<|>
648 }
649 ",
650 r"
651 use test_mod::TestTrait;
652
653 mod test_mod {
654 pub trait TestTrait {
655 fn test_function();
656 }
657 pub struct TestStruct {}
658 impl TestTrait for TestStruct {
659 fn test_function() {}
660 }
661 }
662
663 fn main() {
664 test_mod::TestStruct::test_function
665 }
666 ",
667 );
668 }
669
670 #[test]
671 fn not_applicable_for_imported_trait_for_function() {
672 check_assist_not_applicable(
673 auto_import,
674 r"
675 mod test_mod {
676 pub trait TestTrait {
677 fn test_function();
678 }
679 pub trait TestTrait2 {
680 fn test_function();
681 }
682 pub enum TestEnum {
683 One,
684 Two,
685 }
686 impl TestTrait2 for TestEnum {
687 fn test_function() {}
688 }
689 impl TestTrait for TestEnum {
690 fn test_function() {}
691 }
692 }
693
694 use test_mod::TestTrait2;
695 fn main() {
696 test_mod::TestEnum::test_function<|>;
697 }
698 ",
699 )
700 }
701
702 #[test]
703 fn associated_trait_const() {
704 check_assist(
705 auto_import,
706 r"
707 mod test_mod {
708 pub trait TestTrait {
709 const TEST_CONST: u8;
710 }
711 pub struct TestStruct {}
712 impl TestTrait for TestStruct {
713 const TEST_CONST: u8 = 42;
714 }
715 }
716
717 fn main() {
718 test_mod::TestStruct::TEST_CONST<|>
719 }
720 ",
721 r"
722 use test_mod::TestTrait;
723
724 mod test_mod {
725 pub trait TestTrait {
726 const TEST_CONST: u8;
727 }
728 pub struct TestStruct {}
729 impl TestTrait for TestStruct {
730 const TEST_CONST: u8 = 42;
731 }
732 }
733
734 fn main() {
735 test_mod::TestStruct::TEST_CONST
736 }
737 ",
738 );
739 }
740
741 #[test]
742 fn not_applicable_for_imported_trait_for_const() {
743 check_assist_not_applicable(
744 auto_import,
745 r"
746 mod test_mod {
747 pub trait TestTrait {
748 const TEST_CONST: u8;
749 }
750 pub trait TestTrait2 {
751 const TEST_CONST: f64;
752 }
753 pub enum TestEnum {
754 One,
755 Two,
756 }
757 impl TestTrait2 for TestEnum {
758 const TEST_CONST: f64 = 42.0;
759 }
760 impl TestTrait for TestEnum {
761 const TEST_CONST: u8 = 42;
762 }
763 }
764
765 use test_mod::TestTrait2;
766 fn main() {
767 test_mod::TestEnum::TEST_CONST<|>;
768 }
769 ",
770 )
771 }
772
773 #[test]
774 fn trait_method() {
775 check_assist(
776 auto_import,
777 r"
778 mod test_mod {
779 pub trait TestTrait {
780 fn test_method(&self);
781 }
782 pub struct TestStruct {}
783 impl TestTrait for TestStruct {
784 fn test_method(&self) {}
785 }
786 }
787
788 fn main() {
789 let test_struct = test_mod::TestStruct {};
790 test_struct.test_meth<|>od()
791 }
792 ",
793 r"
794 use test_mod::TestTrait;
795
796 mod test_mod {
797 pub trait TestTrait {
798 fn test_method(&self);
799 }
800 pub struct TestStruct {}
801 impl TestTrait for TestStruct {
802 fn test_method(&self) {}
803 }
804 }
805
806 fn main() {
807 let test_struct = test_mod::TestStruct {};
808 test_struct.test_method()
809 }
810 ",
811 );
812 }
813
814 #[test]
815 fn trait_method_cross_crate() {
816 check_assist(
817 auto_import,
818 r"
819 //- /main.rs crate:main deps:dep
820 fn main() {
821 let test_struct = dep::test_mod::TestStruct {};
822 test_struct.test_meth<|>od()
823 }
824 //- /dep.rs crate:dep
825 pub mod test_mod {
826 pub trait TestTrait {
827 fn test_method(&self);
828 }
829 pub struct TestStruct {}
830 impl TestTrait for TestStruct {
831 fn test_method(&self) {}
832 }
833 }
834 ",
835 r"
836 use dep::test_mod::TestTrait;
837
838 fn main() {
839 let test_struct = dep::test_mod::TestStruct {};
840 test_struct.test_method()
841 }
842 ",
843 );
844 }
845
846 #[test]
847 fn assoc_fn_cross_crate() {
848 check_assist(
849 auto_import,
850 r"
851 //- /main.rs crate:main deps:dep
852 fn main() {
853 dep::test_mod::TestStruct::test_func<|>tion
854 }
855 //- /dep.rs crate:dep
856 pub mod test_mod {
857 pub trait TestTrait {
858 fn test_function();
859 }
860 pub struct TestStruct {}
861 impl TestTrait for TestStruct {
862 fn test_function() {}
863 }
864 }
865 ",
866 r"
867 use dep::test_mod::TestTrait;
868
869 fn main() {
870 dep::test_mod::TestStruct::test_function
871 }
872 ",
873 );
874 }
875
876 #[test]
877 fn assoc_const_cross_crate() {
878 check_assist(
879 auto_import,
880 r"
881 //- /main.rs crate:main deps:dep
882 fn main() {
883 dep::test_mod::TestStruct::CONST<|>
884 }
885 //- /dep.rs crate:dep
886 pub mod test_mod {
887 pub trait TestTrait {
888 const CONST: bool;
889 }
890 pub struct TestStruct {}
891 impl TestTrait for TestStruct {
892 const CONST: bool = true;
893 }
894 }
895 ",
896 r"
897 use dep::test_mod::TestTrait;
898
899 fn main() {
900 dep::test_mod::TestStruct::CONST
901 }
902 ",
903 );
904 }
905
906 #[test]
907 fn assoc_fn_as_method_cross_crate() {
908 check_assist_not_applicable(
909 auto_import,
910 r"
911 //- /main.rs crate:main deps:dep
912 fn main() {
913 let test_struct = dep::test_mod::TestStruct {};
914 test_struct.test_func<|>tion()
915 }
916 //- /dep.rs crate:dep
917 pub mod test_mod {
918 pub trait TestTrait {
919 fn test_function();
920 }
921 pub struct TestStruct {}
922 impl TestTrait for TestStruct {
923 fn test_function() {}
924 }
925 }
926 ",
927 );
928 }
929
930 #[test]
931 fn private_trait_cross_crate() {
932 check_assist_not_applicable(
933 auto_import,
934 r"
935 //- /main.rs crate:main deps:dep
936 fn main() {
937 let test_struct = dep::test_mod::TestStruct {};
938 test_struct.test_meth<|>od()
939 }
940 //- /dep.rs crate:dep
941 pub mod test_mod {
942 trait TestTrait {
943 fn test_method(&self);
944 }
945 pub struct TestStruct {}
946 impl TestTrait for TestStruct {
947 fn test_method(&self) {}
948 }
949 }
950 ",
951 );
952 }
953
954 #[test]
955 fn not_applicable_for_imported_trait_for_method() {
956 check_assist_not_applicable(
957 auto_import,
958 r"
959 mod test_mod {
960 pub trait TestTrait {
961 fn test_method(&self);
962 }
963 pub trait TestTrait2 {
964 fn test_method(&self);
965 }
966 pub enum TestEnum {
967 One,
968 Two,
969 }
970 impl TestTrait2 for TestEnum {
971 fn test_method(&self) {}
972 }
973 impl TestTrait for TestEnum {
974 fn test_method(&self) {}
975 }
976 }
977
978 use test_mod::TestTrait2;
979 fn main() {
980 let one = test_mod::TestEnum::One;
981 one.test<|>_method();
982 }
983 ",
984 )
985 }
986
987 #[test]
988 fn dep_import() {
989 check_assist(
990 auto_import,
991 r"
992//- /lib.rs crate:dep
993pub struct Struct;
994
995//- /main.rs crate:main deps:dep
996fn main() {
997 Struct<|>
998}
999",
1000 r"use dep::Struct;
1001
1002fn main() {
1003 Struct
1004}
1005",
1006 );
1007 }
1008
1009 #[test]
1010 fn whole_segment() {
1011 // Tests that only imports whose last segment matches the identifier get suggested.
1012 check_assist(
1013 auto_import,
1014 r"
1015//- /lib.rs crate:dep
1016pub mod fmt {
1017 pub trait Display {}
1018}
1019
1020pub fn panic_fmt() {}
1021
1022//- /main.rs crate:main deps:dep
1023struct S;
1024
1025impl f<|>mt::Display for S {}
1026",
1027 r"use dep::fmt;
1028
1029struct S;
1030
1031impl fmt::Display for S {}
1032",
1033 );
1034 }
1035
1036 #[test]
1037 fn macro_generated() {
1038 // Tests that macro-generated items are suggested from external crates.
1039 check_assist(
1040 auto_import,
1041 r"
1042//- /lib.rs crate:dep
1043macro_rules! mac {
1044 () => {
1045 pub struct Cheese;
1046 };
1047}
1048
1049mac!();
1050
1051//- /main.rs crate:main deps:dep
1052fn main() {
1053 Cheese<|>;
1054}
1055",
1056 r"use dep::Cheese;
1057
1058fn main() {
1059 Cheese;
1060}
1061",
1062 );
1063 }
1064
1065 #[test]
1066 fn casing() {
1067 // Tests that differently cased names don't interfere and we only suggest the matching one.
1068 check_assist(
1069 auto_import,
1070 r"
1071//- /lib.rs crate:dep
1072pub struct FMT;
1073pub struct fmt;
1074
1075//- /main.rs crate:main deps:dep
1076fn main() {
1077 FMT<|>;
1078}
1079",
1080 r"use dep::FMT;
1081
1082fn main() {
1083 FMT;
1084}
1085",
1086 );
1087 }
1088}
diff --git a/crates/assists/src/handlers/change_return_type_to_result.rs b/crates/assists/src/handlers/change_return_type_to_result.rs
new file mode 100644
index 000000000..be480943c
--- /dev/null
+++ b/crates/assists/src/handlers/change_return_type_to_result.rs
@@ -0,0 +1,998 @@
1use std::iter;
2
3use syntax::{
4 ast::{self, make, B