From 75b00b286871535ecdf757d6e23dd57952f54d02 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Thu, 3 Aug 2023 22:46:02 +0900
Subject: [PATCH 1/9] add as-is test

---
 .../__snapshots__/jsfmt.spec.js.snap          | 37 +++++++++++++++++++
 .../js/assignment/await-discussion-15196.js   |  9 +++++
 2 files changed, 46 insertions(+)
 create mode 100644 tests/format/js/assignment/await-discussion-15196.js

diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 0ff1d7b4c1e6..2f1e0930c10c 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -1,5 +1,42 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`await-discussion-15196.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "flow", "typescript"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+async function f() {
+  const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 = await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 = await looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
+}
+
+=====================================output=====================================
+async function f() {
+  const { section, rubric, authors, tags } = await utils.upsertCommonData(
+    mainData,
+  );
+
+  const loooooooooooooooooooooooooong1 = await looooooooooooooong
+    .looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 =
+    await looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 =
+    await looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !(await looooooooooooooong
+    .looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 = void !!(await looooooooooooooong
+    .looooooooooooooong.loooooong);
+}
+
+================================================================================
+`;
+
 exports[`binaryish.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
diff --git a/tests/format/js/assignment/await-discussion-15196.js b/tests/format/js/assignment/await-discussion-15196.js
new file mode 100644
index 000000000000..433846885215
--- /dev/null
+++ b/tests/format/js/assignment/await-discussion-15196.js
@@ -0,0 +1,9 @@
+async function f() {
+  const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 = await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 = await looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
+}

From b389ea1ec41df3713745cdfd6072c6391b543804 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Thu, 3 Aug 2023 22:50:18 +0900
Subject: [PATCH 2/9] break after equal on assignment if rhs is wait

Discussion: #15196
---
 src/language-js/print/assignment.js             |  2 +-
 .../assignment/__snapshots__/jsfmt.spec.js.snap | 17 ++++++++---------
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/src/language-js/print/assignment.js b/src/language-js/print/assignment.js
index 8e8d032dd75a..11e2eb5ebb77 100644
--- a/src/language-js/print/assignment.js
+++ b/src/language-js/print/assignment.js
@@ -205,7 +205,7 @@ function shouldBreakAfterOperator(path, options, print, hasShortKey) {
   let node = rightNode;
   const propertiesForPath = [];
   for (;;) {
-    if (node.type === "UnaryExpression") {
+    if (node.type === "UnaryExpression" || node.type === "AwaitExpression") {
       node = node.argument;
       propertiesForPath.push("argument");
     } else if (node.type === "TSNonNullExpression") {
diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 2f1e0930c10c..b8ae074d191f 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -18,20 +18,19 @@ async function f() {
 
 =====================================output=====================================
 async function f() {
-  const { section, rubric, authors, tags } = await utils.upsertCommonData(
-    mainData,
-  );
+  const { section, rubric, authors, tags } =
+    await utils.upsertCommonData(mainData);
 
-  const loooooooooooooooooooooooooong1 = await looooooooooooooong
-    .looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong1 =
+    await looooooooooooooong.looooooooooooooong.loooooong;
   const loooooooooooooooooooooooooong2 =
     await looooooooooooooong.looooooooooooooong.loooooong();
   const loooooooooooooooooooooooooong3 =
     await looooooooooooooooooooooooooooooooooooooooooooog();
-  const loooooooooooooooooooooooooong4 = !(await looooooooooooooong
-    .looooooooooooooong.loooooong);
-  const loooooooooooooooooooooooooong5 = void !!(await looooooooooooooong
-    .looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong4 =
+    !(await looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 =
+    void !!(await looooooooooooooong.looooooooooooooong.loooooong);
 }
 
 ================================================================================

From 7ce5fc74add2e66654c79523f4e015a77b998a32 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 22:10:19 +0900
Subject: [PATCH 3/9] rename test file

---
 .../__snapshots__/jsfmt.spec.js.snap          | 72 +++++++++----------
 ...iscussion-15196.js => discussion-15196.js} |  0
 2 files changed, 36 insertions(+), 36 deletions(-)
 rename tests/format/js/assignment/{await-discussion-15196.js => discussion-15196.js} (100%)

diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index b8ae074d191f..2d5f7061526b 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -1,41 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`await-discussion-15196.js format 1`] = `
-====================================options=====================================
-parsers: ["babel", "flow", "typescript"]
-printWidth: 80
-                                                                                | printWidth
-=====================================input======================================
-async function f() {
-  const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);
-
-  const loooooooooooooooooooooooooong1 = await looooooooooooooong.looooooooooooooong.loooooong;
-  const loooooooooooooooooooooooooong2 = await looooooooooooooong.looooooooooooooong.loooooong();
-  const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
-  const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
-  const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
-}
-
-=====================================output=====================================
-async function f() {
-  const { section, rubric, authors, tags } =
-    await utils.upsertCommonData(mainData);
-
-  const loooooooooooooooooooooooooong1 =
-    await looooooooooooooong.looooooooooooooong.loooooong;
-  const loooooooooooooooooooooooooong2 =
-    await looooooooooooooong.looooooooooooooong.loooooong();
-  const loooooooooooooooooooooooooong3 =
-    await looooooooooooooooooooooooooooooooooooooooooooog();
-  const loooooooooooooooooooooooooong4 =
-    !(await looooooooooooooong.looooooooooooooong.loooooong);
-  const loooooooooooooooooooooooooong5 =
-    void !!(await looooooooooooooong.looooooooooooooong.loooooong);
-}
-
-================================================================================
-`;
-
 exports[`binaryish.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
@@ -314,6 +278,42 @@ printWidth: 80
 ================================================================================
 `;
 
+exports[`discussion-15196.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "flow", "typescript"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+async function f() {
+  const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 = await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 = await looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
+}
+
+=====================================output=====================================
+async function f() {
+  const { section, rubric, authors, tags } =
+    await utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 =
+    await looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 =
+    await looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 =
+    await looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 =
+    !(await looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 =
+    void !!(await looooooooooooooong.looooooooooooooong.loooooong);
+}
+
+================================================================================
+`;
+
 exports[`issue-1419.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]
diff --git a/tests/format/js/assignment/await-discussion-15196.js b/tests/format/js/assignment/discussion-15196.js
similarity index 100%
rename from tests/format/js/assignment/await-discussion-15196.js
rename to tests/format/js/assignment/discussion-15196.js

From 651099b932a4855174083b963e9039eb095309c5 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 22:12:06 +0900
Subject: [PATCH 4/9] add as-is test

---
 .../__snapshots__/jsfmt.spec.js.snap          | 27 +++++++++++++++++++
 .../format/js/assignment/discussion-15196.js  | 10 +++++++
 2 files changed, 37 insertions(+)

diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 2d5f7061526b..7cb5b1b9b340 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -294,6 +294,16 @@ async function f() {
   const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
 }
 
+function* g() {
+  const { section, rubric, authors, tags } = yield utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 = yield looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 = yield looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+}
+
 =====================================output=====================================
 async function f() {
   const { section, rubric, authors, tags } =
@@ -311,6 +321,23 @@ async function f() {
     void !!(await looooooooooooooong.looooooooooooooong.loooooong);
 }
 
+function* g() {
+  const { section, rubric, authors, tags } = yield utils.upsertCommonData(
+    mainData,
+  );
+
+  const loooooooooooooooooooooooooong1 = yield looooooooooooooong
+    .looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 =
+    yield looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 =
+    yield looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong
+    .looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong
+    .looooooooooooooong.loooooong);
+}
+
 ================================================================================
 `;
 
diff --git a/tests/format/js/assignment/discussion-15196.js b/tests/format/js/assignment/discussion-15196.js
index 433846885215..8579da77aa0c 100644
--- a/tests/format/js/assignment/discussion-15196.js
+++ b/tests/format/js/assignment/discussion-15196.js
@@ -7,3 +7,13 @@ async function f() {
   const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
   const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
 }
+
+function* g() {
+  const { section, rubric, authors, tags } = yield utils.upsertCommonData(mainData);
+
+  const loooooooooooooooooooooooooong1 = yield looooooooooooooong.looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong2 = yield looooooooooooooong.looooooooooooooong.loooooong();
+  const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
+  const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+}

From 19c26c0db73f6935a705082fbec35ebf6cc8a020 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 22:13:16 +0900
Subject: [PATCH 5/9] treat YieldExpression

---
 src/language-js/print/assignment.js             |  6 +++++-
 .../assignment/__snapshots__/jsfmt.spec.js.snap | 17 ++++++++---------
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/language-js/print/assignment.js b/src/language-js/print/assignment.js
index 11e2eb5ebb77..005df82c64c2 100644
--- a/src/language-js/print/assignment.js
+++ b/src/language-js/print/assignment.js
@@ -205,7 +205,11 @@ function shouldBreakAfterOperator(path, options, print, hasShortKey) {
   let node = rightNode;
   const propertiesForPath = [];
   for (;;) {
-    if (node.type === "UnaryExpression" || node.type === "AwaitExpression") {
+    if (
+      node.type === "UnaryExpression" ||
+      node.type === "AwaitExpression" ||
+      node.type === "YieldExpression"
+    ) {
       node = node.argument;
       propertiesForPath.push("argument");
     } else if (node.type === "TSNonNullExpression") {
diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 7cb5b1b9b340..9fa583a8c933 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -322,20 +322,19 @@ async function f() {
 }
 
 function* g() {
-  const { section, rubric, authors, tags } = yield utils.upsertCommonData(
-    mainData,
-  );
+  const { section, rubric, authors, tags } =
+    yield utils.upsertCommonData(mainData);
 
-  const loooooooooooooooooooooooooong1 = yield looooooooooooooong
-    .looooooooooooooong.loooooong;
+  const loooooooooooooooooooooooooong1 =
+    yield looooooooooooooong.looooooooooooooong.loooooong;
   const loooooooooooooooooooooooooong2 =
     yield looooooooooooooong.looooooooooooooong.loooooong();
   const loooooooooooooooooooooooooong3 =
     yield looooooooooooooooooooooooooooooooooooooooooooog();
-  const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong
-    .looooooooooooooong.loooooong);
-  const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong
-    .looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong4 =
+    !(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong5 =
+    void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
 }
 
 ================================================================================

From 70ae55bc433eacf1a98e85062bdc4603a3639381 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 22:26:59 +0900
Subject: [PATCH 6/9] add tests

---
 .../__snapshots__/jsfmt.spec.js.snap          | 29 +++++++++++++++++++
 .../format/js/assignment/discussion-15196.js  |  6 ++++
 2 files changed, 35 insertions(+)

diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 9fa583a8c933..5c0829564f04 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -292,6 +292,9 @@ async function f() {
   const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
   const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
+
+  const longlonglonglonglonglonglong1 = await new Promise((resolve, reject) => { setTimeout(() => { resolve('foo'); }, 300); })
+  const longlonglonglonglonglonglong2 = await { then(onFulfilled, onRejected) { onFulfilled(1234567890) } };
 }
 
 function* g() {
@@ -302,6 +305,9 @@ function* g() {
   const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+
+  const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
+  const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };
 }
 
 =====================================output=====================================
@@ -319,6 +325,17 @@ async function f() {
     !(await looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 =
     void !!(await looooooooooooooong.looooooooooooooong.loooooong);
+
+  const longlonglonglonglonglonglong1 = await new Promise((resolve, reject) => {
+    setTimeout(() => {
+      resolve("foo");
+    }, 300);
+  });
+  const longlonglonglonglonglonglong2 = await {
+    then(onFulfilled, onRejected) {
+      onFulfilled(1234567890);
+    },
+  };
 }
 
 function* g() {
@@ -335,6 +352,18 @@ function* g() {
     !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 =
     void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+
+  const longlonglonglonglonglonglong1 = yield qwertyuiop(
+    asdfghjkl,
+    zxcvbnm,
+    qwertyuiop,
+    asdfghjkl,
+  );
+  const longlonglonglonglonglonglong2 = yield {
+    qwertyuiop: 1234567890,
+    asdfghjkl: 1234567890,
+    zxcvbnm: 123456789,
+  };
 }
 
 ================================================================================
diff --git a/tests/format/js/assignment/discussion-15196.js b/tests/format/js/assignment/discussion-15196.js
index 8579da77aa0c..132c78021b5a 100644
--- a/tests/format/js/assignment/discussion-15196.js
+++ b/tests/format/js/assignment/discussion-15196.js
@@ -6,6 +6,9 @@ async function f() {
   const loooooooooooooooooooooooooong3 = await looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !await looooooooooooooong.looooooooooooooong.loooooong;
   const loooooooooooooooooooooooooong5 = void !!await looooooooooooooong.looooooooooooooong.loooooong;
+
+  const longlonglonglonglonglonglong1 = await new Promise((resolve, reject) => { setTimeout(() => { resolve('foo'); }, 300); })
+  const longlonglonglonglonglonglong2 = await { then(onFulfilled, onRejected) { onFulfilled(1234567890) } };
 }
 
 function* g() {
@@ -16,4 +19,7 @@ function* g() {
   const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+
+  const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
+  const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };
 }

From 16f94eb9d8a0e3146d83c59c9590ddf3e1599d21 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 22:40:40 +0900
Subject: [PATCH 7/9] add changelog

---
 changelog_unreleased/javascript/15204.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 changelog_unreleased/javascript/15204.md

diff --git a/changelog_unreleased/javascript/15204.md b/changelog_unreleased/javascript/15204.md
new file mode 100644
index 000000000000..b0bd8339e732
--- /dev/null
+++ b/changelog_unreleased/javascript/15204.md
@@ -0,0 +1,16 @@
+#### Break after `=` of assignment if RHS is poorly breakable AwaitExpression or YieldExpression (#15204 by @seiyab)
+
+<!-- prettier-ignore -->
+```js
+// Input
+const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);
+
+// Prettier stable
+const { section, rubric, authors, tags } = await utils.upsertCommonData(
+  mainData,
+);
+
+// Prettier main
+const { section, rubric, authors, tags } =
+  await utils.upsertCommonData(mainData);
+```

From 900f47f56614456aecc5270ab2f39b639c6b1bd7 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Fri, 4 Aug 2023 23:01:22 +0900
Subject: [PATCH 8/9] fix a bug

---
 src/language-js/print/assignment.js                         | 2 +-
 tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap | 4 ++++
 tests/format/js/assignment/discussion-15196.js              | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/language-js/print/assignment.js b/src/language-js/print/assignment.js
index 005df82c64c2..b775194889cb 100644
--- a/src/language-js/print/assignment.js
+++ b/src/language-js/print/assignment.js
@@ -208,7 +208,7 @@ function shouldBreakAfterOperator(path, options, print, hasShortKey) {
     if (
       node.type === "UnaryExpression" ||
       node.type === "AwaitExpression" ||
-      node.type === "YieldExpression"
+      (node.type === "YieldExpression" && node.argument !== null)
     ) {
       node = node.argument;
       propertiesForPath.push("argument");
diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 5c0829564f04..1c4f888825f8 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -308,6 +308,8 @@ function* g() {
 
   const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
   const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };
+
+  const x = yield;
 }
 
 =====================================output=====================================
@@ -364,6 +366,8 @@ function* g() {
     asdfghjkl: 1234567890,
     zxcvbnm: 123456789,
   };
+
+  const x = yield;
 }
 
 ================================================================================
diff --git a/tests/format/js/assignment/discussion-15196.js b/tests/format/js/assignment/discussion-15196.js
index 132c78021b5a..e511bb329a65 100644
--- a/tests/format/js/assignment/discussion-15196.js
+++ b/tests/format/js/assignment/discussion-15196.js
@@ -22,4 +22,6 @@ function* g() {
 
   const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
   const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };
+
+  const x = yield;
 }

From 6ac0033c91772b07ff67081fb197eaf915f8b1e2 Mon Sep 17 00:00:00 2001
From: seiya <20365512+seiyab@users.noreply.github.com>
Date: Sat, 5 Aug 2023 21:53:21 +0900
Subject: [PATCH 9/9] add test for delegated yield

---
 tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap | 3 +++
 tests/format/js/assignment/discussion-15196.js              | 1 +
 2 files changed, 4 insertions(+)

diff --git a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
index 1c4f888825f8..90ce454a1b6b 100644
--- a/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -305,6 +305,7 @@ function* g() {
   const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong6 = yield* looooooooooooooong.looooooooooooooong.loooooong;
 
   const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
   const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };
@@ -354,6 +355,8 @@ function* g() {
     !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 =
     void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong6 =
+    yield* looooooooooooooong.looooooooooooooong.loooooong;
 
   const longlonglonglonglonglonglong1 = yield qwertyuiop(
     asdfghjkl,
diff --git a/tests/format/js/assignment/discussion-15196.js b/tests/format/js/assignment/discussion-15196.js
index e511bb329a65..b6836faaa239 100644
--- a/tests/format/js/assignment/discussion-15196.js
+++ b/tests/format/js/assignment/discussion-15196.js
@@ -19,6 +19,7 @@ function* g() {
   const loooooooooooooooooooooooooong3 = yield looooooooooooooooooooooooooooooooooooooooooooog();
   const loooooooooooooooooooooooooong4 = !(yield looooooooooooooong.looooooooooooooong.loooooong);
   const loooooooooooooooooooooooooong5 = void !!(yield looooooooooooooong.looooooooooooooong.loooooong);
+  const loooooooooooooooooooooooooong6 = yield* looooooooooooooong.looooooooooooooong.loooooong;
 
   const longlonglonglonglonglonglong1 = yield qwertyuiop(asdfghjkl, zxcvbnm, qwertyuiop, asdfghjkl);
   const longlonglonglonglonglonglong2 = yield { qwertyuiop: 1234567890, asdfghjkl: 1234567890, zxcvbnm: 123456789 };