Fix outputting tuple subclasses in json encoder

msimacek · msimacek · commit 38d81f5e1156 · 2021-06-16T16:04:18.000+02:00
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/json/JSONEncoderBuiltins.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/json/JSONEncoderBuiltins.java
@@ -304,10 +304,10 @@ private void appendList(PJSONEncoder encoder, StringBuilder builder, PSequence l
                             e.expectStopIteration(stopListIterationProfile);
                             break;
                         }
-                        if (first) {
+                        if (!first) {
                             builder.append(encoder.itemSeparator);
-                            first = false;
                         }
+                        first = false;
                         appendListObj(encoder, builder, item);
                     }
                 }

Original file line number	Diff line number	Diff line change
`@@ -304,10 +304,10 @@ private void appendList(PJSONEncoder encoder, StringBuilder builder, PSequence l`
`304`	`304`	`e.expectStopIteration(stopListIterationProfile);`
`305`	`305`	`break;`
`306`	`306`	`}`
`307`		`- if (first) {`
	`307`	`+ if (!first) {`
`308`	`308`	`builder.append(encoder.itemSeparator);`
`309`		`- first = false;`
`310`	`309`	`}`
	`310`	`+ first = false;`
`311`	`311`	`appendListObj(encoder, builder, item);`
`312`	`312`	`}`
`313`	`313`	`}`