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layout: GC unused flow types

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This commit is contained in:
Patrick Walton 2014-01-08 21:42:53 -08:00
parent 563d6ef91a
commit 81769b4c4e
1 changed files with 4 additions and 65 deletions
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69
src/components/main/layout/flow.rs
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@ -210,67 +210,8 @@ pub trait MutableFlowUtils {
} }
pub enum FlowClass { pub enum FlowClass {
AbsoluteFlowClass,
BlockFlowClass, BlockFlowClass,
InlineBlockFlowClass,
InlineFlowClass, InlineFlowClass,
TableFlowClass,
}
// Miscellaneous flows that are not yet implemented.
pub struct AbsoluteFlow {
base: FlowData,
}
impl AbsoluteFlow {
pub fn new(base: FlowData) -> AbsoluteFlow {
AbsoluteFlow {
base: base,
}
}
}
impl Flow for AbsoluteFlow {
fn class(&self) -> FlowClass {
AbsoluteFlowClass
}
}
pub struct InlineBlockFlow {
base: FlowData,
}
impl InlineBlockFlow {
pub fn new(base: FlowData) -> InlineBlockFlow {
InlineBlockFlow {
base: base,
}
}
}
impl Flow for InlineBlockFlow {
fn class(&self) -> FlowClass {
InlineBlockFlowClass
}
}
pub struct TableFlow {
base: FlowData,
}
impl TableFlow {
pub fn new(base: FlowData) -> TableFlow {
TableFlow {
base: base,
}
}
}
impl Flow for TableFlow {
fn class(&self) -> FlowClass {
TableFlowClass
}
} }
/// A top-down traversal. /// A top-down traversal.
@ -464,7 +405,7 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
fn is_block_like(self) -> bool { fn is_block_like(self) -> bool {
match self.class() { match self.class() {
BlockFlowClass => true, BlockFlowClass => true,
AbsoluteFlowClass | InlineBlockFlowClass | InlineFlowClass | TableFlowClass => false, InlineFlowClass => false,
} }
} }
@ -476,8 +417,8 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
/// Returns true if this flow is a block flow, an inline-block flow, or a float flow. /// Returns true if this flow is a block flow, an inline-block flow, or a float flow.
fn starts_block_flow(self) -> bool { fn starts_block_flow(self) -> bool {
match self.class() { match self.class() {
BlockFlowClass | InlineBlockFlowClass => true, BlockFlowClass => true,
AbsoluteFlowClass | InlineFlowClass | TableFlowClass => false, InlineFlowClass => false,
} }
} }
@ -485,8 +426,7 @@ impl<'a> ImmutableFlowUtils for &'a Flow {
fn starts_inline_flow(self) -> bool { fn starts_inline_flow(self) -> bool {
match self.class() { match self.class() {
InlineFlowClass => true, InlineFlowClass => true,
AbsoluteFlowClass | BlockFlowClass | InlineBlockFlowClass | BlockFlowClass => false,
TableFlowClass => false,
} }
} }
@ -593,7 +533,6 @@ impl<'a> MutableFlowUtils for &'a mut Flow {
match self.class() { match self.class() {
BlockFlowClass => self.as_block().build_display_list_block(builder, dirty, list), BlockFlowClass => self.as_block().build_display_list_block(builder, dirty, list),
InlineFlowClass => self.as_inline().build_display_list_inline(builder, dirty, list), InlineFlowClass => self.as_inline().build_display_list_inline(builder, dirty, list),
_ => fail!("Tried to build_display_list_recurse of flow: {:?}", self),
}; };
if list.with_mut(|list| list.list.len() == 0) { if list.with_mut(|list| list.list.len() == 0) {