Skylark: write labels readably

Write a label as Label("//x:x") instead of merely "//x:x", so it can be read
and evaluated back, as per the Python convention. However, the OutputFormatter
for BUILD files still needs to output "//x:x".

--
MOS_MIGRATED_REVID=96209979

1 files changed, 2 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/syntax/Printer.java b/src/main/java/com/google/devtools/build/lib/syntax/Printer.java
index 56f129e6b8..f3e95259f4 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/Printer.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/Printer.java
@@ -135,7 +135,9 @@ public final class Printer {
       append(buffer, "<function " + func.getName() + ">");
 
     } else if (o instanceof Label) {
+      append(buffer, "Label(");
       write(buffer, o.toString());
+      append(buffer, ')');
 
     } else if (o instanceof FilesetEntry) {
            FilesetEntry entry = (FilesetEntry) o;