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Add support for some -Z dump-* options

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This commit is contained in:
Simon Sapin 2020-01-10 18:54:58 +01:00
parent 40453ad7e1
commit d332dfdb41
1 changed files with 54 additions and 15 deletions
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69
components/layout_thread_2020/lib.rs
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@ -217,11 +217,23 @@ pub struct LayoutThread {
/// Load web fonts synchronously to avoid non-deterministic network-driven reflows.
load_webfonts_synchronously: bool,
/// Dumps the display list form after a layout.
dump_display_list: bool,
/// Dumps the display list in JSON form after a layout.
dump_display_list_json: bool,
/// Dumps the DOM after restyle.
dump_style_tree: bool,
/// Dumps the flow tree after a layout.
dump_rule_tree: bool,
/// Dumps the flow tree after a layout.
dump_flow_tree: bool,
/// Emits notifications when there is a relayout.
relayout_event: bool,
/// Dumps the fragment tree after a layout.
dump_fragment_tree: bool,
}
impl LayoutThreadFactory for LayoutThread {
@ -248,10 +260,10 @@ impl LayoutThreadFactory for LayoutThread {
busy: Arc<AtomicBool>,
load_webfonts_synchronously: bool,
window_size: WindowSizeData,
_dump_display_list: bool,
_dump_display_list_json: bool,
_dump_style_tree: bool,
_dump_rule_tree: bool,
dump_display_list: bool,
dump_display_list_json: bool,
dump_style_tree: bool,
dump_rule_tree: bool,
relayout_event: bool,
_nonincremental_layout: bool,
_trace_layout: bool,
@ -297,6 +309,10 @@ impl LayoutThreadFactory for LayoutThread {
load_webfonts_synchronously,
window_size,
relayout_event,
dump_display_list,
dump_display_list_json,
dump_style_tree,
dump_rule_tree,
dump_flow_tree,
);
@ -461,7 +477,11 @@ impl LayoutThread {
load_webfonts_synchronously: bool,
window_size: WindowSizeData,
relayout_event: bool,
dump_fragment_tree: bool,
dump_display_list: bool,
dump_display_list_json: bool,
dump_style_tree: bool,
dump_rule_tree: bool,
dump_flow_tree: bool,
) -> LayoutThread {
// Let webrender know about this pipeline by sending an empty display list.
webrender_api_sender.send_initial_transaction(webrender_document, id.to_webrender());
@ -542,7 +562,11 @@ impl LayoutThread {
busy,
load_webfonts_synchronously,
relayout_event,
dump_fragment_tree,
dump_display_list,
dump_display_list_json,
dump_style_tree,
dump_rule_tree,
dump_flow_tree,
}
}
@ -836,14 +860,14 @@ impl LayoutThread {
info.layout_is_busy,
self.load_webfonts_synchronously,
info.window_size,
false, // dump_display_list
false, // dump_display_list_json
false, // dump_style_tree
false, // dump_rule_tree
self.dump_display_list,
self.dump_display_list_json,
self.dump_style_tree,
self.dump_rule_tree,
self.relayout_event,
true, // nonincremental_layout
false, // trace_layout
false, // dump_flow_tree
self.dump_flow_tree,
);
}
@ -1140,6 +1164,18 @@ impl LayoutThread {
unsafe { element.unset_snapshot_flags() }
}
if self.dump_style_tree {
println!("{:?}", style::dom::ShowSubtreeDataAndPrimaryValues(element.as_node()));
}
if self.dump_rule_tree {
layout_context
.style_context
.stylist
.rule_tree()
.dump_stdout(&guards);
}
// GC the rule tree if some heuristics are met.
unsafe {
layout_context.style_context.stylist.rule_tree().maybe_gc();
@ -1343,9 +1379,12 @@ impl LayoutThread {
DisplayListBuilder::new(self.id.to_webrender(), context, viewport_size);
fragment_tree.build_display_list(&mut display_list, viewport_size);
if self.dump_fragment_tree {
if self.dump_flow_tree {
fragment_tree.print();
}
if self.dump_display_list {
display_list.wr.print_display_list();
}
debug!("Layout done!");