3 files changed, 113 insertions, 1 deletions

diff --git a/docs/dev/debugging.md b/docs/dev/debugging.md
index 59a83f7d7..8c48fd5a1 100644
--- a/docs/dev/debugging.md
+++ b/docs/dev/debugging.md
@@ -53,7 +53,7 @@ To apply changes to an already running debug process, press <kbd>Ctrl+Shift+P</k
 
 - A list of running processes should appear. Select the `rust-analyzer` from this repo.
 
-- Navigate to `crates/rust-analyzer/src/main_loop.rs` and add a breakpoint to the `on_task` function.
+- Navigate to `crates/rust-analyzer/src/main_loop.rs` and add a breakpoint to the `on_request` function.
 
 - Go back to the `[Extension Development Host]` instance and hover over a Rust variable and your breakpoint should hit.
 
diff --git a/docs/user/generated_diagnostic.adoc b/docs/user/generated_diagnostic.adoc
new file mode 100644
index 000000000..ec45d0c2b
--- /dev/null
+++ b/docs/user/generated_diagnostic.adoc
@@ -0,0 +1,105 @@
+//Generated file, do not edit by hand, see `xtask/src/codegen`
+=== break-outside-of-loop
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L219[diagnostics.rs]
+
+This diagnostic is triggered if `break` keyword is used outside of a loop.
+
+
+=== incorrect-ident-case
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L319[diagnostics.rs]
+
+This diagnostic is triggered if item name doesn't follow https://doc.rust-lang.org/1.0.0/style/style/naming/README.html[Rust naming convention].
+
+
+=== mismatched-arg-count
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L267[diagnostics.rs]
+
+This diagnostic is triggered if function is invoked with an incorrect amount of arguments.
+
+
+=== missing-match-arm
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L162[diagnostics.rs]
+
+This diagnostic is triggered if `match` block is missing one or more match arms.
+
+
+=== missing-ok-in-tail-expr
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L187[diagnostics.rs]
+
+This diagnostic is triggered if block that should return `Result` returns a value not wrapped in `Ok`.
+
+Example:
+
+```rust
+fn foo() -> Result<u8, ()> {
+    10
+}
+```
+
+
+=== missing-pat-fields
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L113[diagnostics.rs]
+
+This diagnostic is triggered if pattern lacks some fields that exist in the corresponding structure.
+
+Example:
+
+```rust
+struct A { a: u8, b: u8 }
+
+let a = A { a: 10, b: 20 };
+
+if let A { a } = a {
+    // ...
+}
+```
+
+
+=== missing-structure-fields
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L66[diagnostics.rs]
+
+This diagnostic is triggered if record lacks some fields that exist in the corresponding structure.
+
+Example:
+
+```rust
+struct A { a: u8, b: u8 }
+
+let a = A { a: 10 };
+```
+
+
+=== missing-unsafe
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L243[diagnostics.rs]
+
+This diagnostic is triggered if operation marked as `unsafe` is used outside of `unsafe` function or block.
+
+
+=== no-such-field
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_ty/src/diagnostics.rs#L39[diagnostics.rs]
+
+This diagnostic is triggered if created structure does not have field provided in record.
+
+
+=== unconfigured-code
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_def/src/diagnostics.rs#L90[diagnostics.rs]
+
+This diagnostic is shown for code with inactive `#[cfg]` attributes.
+
+
+=== unresolved-extern-crate
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_def/src/diagnostics.rs#L35[diagnostics.rs]
+
+This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate.
+
+
+=== unresolved-import
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_def/src/diagnostics.rs#L59[diagnostics.rs]
+
+This diagnostic is triggered if rust-analyzer is unable to discover imported module.
+
+
+=== unresolved-module
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/hir_def/src/diagnostics.rs#L10[diagnostics.rs]
+
+This diagnostic is triggered if rust-analyzer is unable to discover referred module.
diff --git a/docs/user/manual.adoc b/docs/user/manual.adoc
index 7e8adcdb7..b9d907a4a 100644
--- a/docs/user/manual.adoc
+++ b/docs/user/manual.adoc
@@ -366,6 +366,13 @@ Cursor position or selection is signified by `┃` character.
 
 include::./generated_assists.adoc[]
 
+== Diagnostics
+
+While most errors and warnings provided by rust-analyzer come from the `cargo check` integration, there's a growing number of diagnostics implemented using rust-analyzer's own analysis.
+These diagnostics don't respect `#[allow]` or `#[deny]` attributes yet, but can be turned off using the `rust-analyzer.diagnostics.enable`, `rust-analyzer.diagnostics.enableExperimental` or `rust-analyzer.diagnostics.disabled` settings.
+
+include::./generated_diagnostic.adoc[]
+
 == Editor Features
 === VS Code