fix: handle comments with static invocations

Author: clementdessoude

packages/prettier-plugin-java/src/printers/expressions.ts

@@ -63,6 +63,7 @@ import { builders, utils } from "prettier/doc";
 import { BaseCstPrettierPrinter } from "../base-cst-printer.js";
 import { isAnnotationCstNode } from "../types/utils.js";
 import { printArgumentListWithBraces } from "../utils/index.js";
+import { hasLeadingComments } from "./comments/comments-utils.js";
 import { printTokenWithComments } from "./comments/format-comments.js";
 import {
   handleCommentsBinaryExpression,
@@ -366,11 +367,14 @@ export class ExpressionsPrettierVisitor extends BaseCstPrettierPrinter {
       .find(methodInvocationSuffix => methodInvocationSuffix);
 
     const hasFqnRefPart = fqnOrRefType?.fqnOrRefTypePartRest !== undefined;
-    const isCapitalizedIdentifier = !!this.isCapitalizedIdentifier(fqnOrRefType);
+    const lastFqnRefPartDot = this.lastDot(fqnOrRefType);
+    const isCapitalizedIdentifier = !!this.isCapitalizedIdentifier(fqnOrRefType)
+    const isCapitalizedIdentifierWithoutTrailingComment = isCapitalizedIdentifier && (lastFqnRefPartDot === undefined || !hasLeadingComments(lastFqnRefPartDot));
+
     const shouldBreakBeforeFirstMethodInvocation =
       countMethodInvocation > 1 &&
       hasFqnRefPart &&
-      !isCapitalizedIdentifier &&
+      !isCapitalizedIdentifierWithoutTrailingComment &&
       firstMethodInvocation !== undefined;
 
     const shouldBreakBeforeMethodInvocations =
@@ -918,4 +922,13 @@ export class ExpressionsPrettierVisitor extends BaseCstPrettierPrinter {
       /^\p{Uppercase_Letter}/u.test(nextToLastIdentifier)
     );
   }
+
+  private lastDot(fqnOrRefType: FqnOrRefTypeCtx | undefined) {
+    if (fqnOrRefType === undefined || fqnOrRefType.Dot === undefined) {
+      return undefined;
+    }
+
+    const lastDot = fqnOrRefType.Dot[fqnOrRefType.Dot.length - 1];
+    return lastDot;
+  }
 }

packages/prettier-plugin-java/test/unit-test/member_chain/_input.java

@@ -4,6 +4,42 @@ public void doSomething() {
 		return new Object().something().more();
 	}
 
+    public void doSomethingNewWithComment() {
+        return new Object()
+            // comment
+            .something().more();
+    }
+
+    public void doSomethingWithComment() {
+        return Object
+            // comment
+            .something().more();
+    }
+
+    public void doSomethingWithComment() {
+        return object
+            // comment
+            .something().more();
+    }
+
+    public void doSomethingNewWithComment() {
+        return new Object()
+            /* comment */
+            .something().more();
+    }
+
+    public void doSomethingWithComment() {
+        return Object
+            /* comment */
+            .something().more();
+    }
+
+    public void doSomethingWithComment() {
+        return object
+            /* comment */
+            .something().more();
+    }
+
 	public void doSomethingLongNew() {
 		return something().more().and().that().as().well().but().not().something().something();
     }

packages/prettier-plugin-java/test/unit-test/member_chain/_output.java

@@ -4,6 +4,48 @@ public void doSomething() {
     return new Object().something().more();
   }
 
+  public void doSomethingNewWithComment() {
+    return new Object()
+      // comment
+      .something()
+      .more();
+  }
+
+  public void doSomethingWithComment() {
+    return Object
+      // comment
+      .something()
+      .more();
+  }
+
+  public void doSomethingWithComment() {
+    return object
+      // comment
+      .something()
+      .more();
+  }
+
+  public void doSomethingNewWithComment() {
+    return new Object()
+      /* comment */
+      .something()
+      .more();
+  }
+
+  public void doSomethingWithComment() {
+    return Object
+      /* comment */
+      .something()
+      .more();
+  }
+
+  public void doSomethingWithComment() {
+    return object
+      /* comment */
+      .something()
+      .more();
+  }
+
   public void doSomethingLongNew() {
     return something()
       .more()