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layout: GC unused flow types
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1 changed files with 4 additions and 65 deletions
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@ -210,67 +210,8 @@ pub trait MutableFlowUtils {
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}
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pub enum FlowClass {
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AbsoluteFlowClass,
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BlockFlowClass,
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InlineBlockFlowClass,
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InlineFlowClass,
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TableFlowClass,
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}
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// Miscellaneous flows that are not yet implemented.
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pub struct AbsoluteFlow {
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base: FlowData,
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}
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impl AbsoluteFlow {
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pub fn new(base: FlowData) -> AbsoluteFlow {
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AbsoluteFlow {
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base: base,
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}
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}
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}
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impl Flow for AbsoluteFlow {
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fn class(&self) -> FlowClass {
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AbsoluteFlowClass
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}
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}
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pub struct InlineBlockFlow {
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base: FlowData,
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}
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impl InlineBlockFlow {
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pub fn new(base: FlowData) -> InlineBlockFlow {
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InlineBlockFlow {
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base: base,
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}
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}
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}
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impl Flow for InlineBlockFlow {
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fn class(&self) -> FlowClass {
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InlineBlockFlowClass
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}
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}
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pub struct TableFlow {
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base: FlowData,
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}
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impl TableFlow {
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pub fn new(base: FlowData) -> TableFlow {
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TableFlow {
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base: base,
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}
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}
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}
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impl Flow for TableFlow {
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fn class(&self) -> FlowClass {
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TableFlowClass
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}
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}
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/// A top-down traversal.
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@ -464,7 +405,7 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
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fn is_block_like(self) -> bool {
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match self.class() {
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BlockFlowClass => true,
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AbsoluteFlowClass | InlineBlockFlowClass | InlineFlowClass | TableFlowClass => false,
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InlineFlowClass => false,
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}
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}
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@ -476,8 +417,8 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
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/// Returns true if this flow is a block flow, an inline-block flow, or a float flow.
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fn starts_block_flow(self) -> bool {
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match self.class() {
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BlockFlowClass | InlineBlockFlowClass => true,
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AbsoluteFlowClass | InlineFlowClass | TableFlowClass => false,
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BlockFlowClass => true,
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InlineFlowClass => false,
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}
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}
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@ -485,8 +426,7 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
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fn starts_inline_flow(self) -> bool {
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match self.class() {
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InlineFlowClass => true,
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AbsoluteFlowClass | BlockFlowClass | InlineBlockFlowClass |
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TableFlowClass => false,
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BlockFlowClass => false,
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}
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}
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@ -593,7 +533,6 @@ impl<'a> MutableFlowUtils for &'a mut Flow {
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match self.class() {
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BlockFlowClass => self.as_block().build_display_list_block(builder, dirty, list),
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InlineFlowClass => self.as_inline().build_display_list_inline(builder, dirty, list),
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_ => fail!("Tried to build_display_list_recurse of flow: {:?}", self),
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};
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if list.with_mut(|list| list.list.len() == 0) {
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