diff options
Diffstat (limited to 'src/main/java/com/google/devtools')
-rw-r--r-- | src/main/java/com/google/devtools/build/lib/syntax/ValidationEnvironment.java | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/ValidationEnvironment.java b/src/main/java/com/google/devtools/build/lib/syntax/ValidationEnvironment.java index 4415a85ce4..6f5eb9c401 100644 --- a/src/main/java/com/google/devtools/build/lib/syntax/ValidationEnvironment.java +++ b/src/main/java/com/google/devtools/build/lib/syntax/ValidationEnvironment.java @@ -158,6 +158,16 @@ public final class ValidationEnvironment extends SyntaxTreeVisitor { super.visit(node); } + @Override + public void visit(AugmentedAssignmentStatement node) { + if (node.getLValue().getExpression() instanceof ListLiteral) { + throw new ValidationException( + node.getLocation(), "cannot perform augmented assignment on a list or tuple expression"); + } + // Other bad cases are handled when visiting the LValue node. + super.visit(node); + } + /** Returns true if the current block is the top level i.e. has no parent. */ private boolean isTopLevel() { return block.parent == null; |