Add new lint `partial_pub_fields`

Signed-off-by: TennyZhuang <zty0826@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/docs/partial_pub_fields.txt b/src/docs/partial_pub_fields.txt
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index 00000000000..a332ec8c28a
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+++ b/src/docs/partial_pub_fields.txt
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+### What it does
+Checks whether partial fields of a struct are public.
+
+Either make all fields of a type public, or make none of them public
+
+### Why is this bad?
+Most types should either be:
+* Abstract data types: complex objects with opaque implementation which guard
+interior invariants and expose intentionally limited API to the outside world.
+* Data: relatively simple objects which group a bunch of related attributes together.
+
+### Example
+```
+pub struct Color {
+    pub r,
+    pub g,
+    b,
+}
+```
+Use instead:
+```
+pub struct Color {
+    pub r,
+    pub g,
+    pub b,
+}
+```
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