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[pkg/vm_snapshot_analysis] Don't assume Code objects have an owner.
For regular stubs, the owner will be null. Issue: https://github.com/flutter/flutter/issues/130009 Change-Id: I8c85e3130128af79c596f381869d61631221cf9e Cq-Include-Trybots: luci.dart.try:pkg-mac-release-try,pkg-mac-release-arm64-try,pkg-linux-release-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/312660 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Tess Strickland <sstrickl@google.com>
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# Changelog
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## 0.7.5
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- Fix for flutter/flutter#130009 where an attempt to lookup the owner info
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node for type testing stubs would cause a null check error.
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## 0.7.4
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- Fix for flutter/flutter#128402 where an attempt to lookup the owner info
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@ -413,16 +413,16 @@ class _ProgramInfoBuilder {
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ProgramInfoNode? createInfoNodeFor(Node node) {
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switch (node.type) {
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case 'Code':
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final owner = node['owner_']!;
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if (owner.type == 'Function') {
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final owner = node['owner_']; // Stubs may have no owner.
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if (owner?.type == 'Function') {
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// For normal functions we just attribute Code object and all
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// objects dominated by it to the function itself.
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return getInfoNodeFor(owner)!;
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return getInfoNodeFor(owner!)!;
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}
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// For all stub types, we create a dummy functionNode that is going to
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// own all objects dominated by it.
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final ownerNode =
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owner.type == 'Class' ? getInfoNodeFor(owner)! : program.stubs;
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owner?.type == 'Class' ? getInfoNodeFor(owner!)! : program.stubs;
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return makeInfoNode(node.index,
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name: node.name, parent: ownerNode, type: NodeType.functionNode);
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@ -1,5 +1,5 @@
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name: vm_snapshot_analysis
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version: 0.7.4
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version: 0.7.5
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description: Utilities for analysing AOT snapshot size.
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repository: https://github.com/dart-lang/sdk/tree/main/pkg/vm_snapshot_analysis
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