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Replace a large tuple return type with a new struct

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This commit is contained in:
Simon Sapin 2019-12-04 13:56:42 +01:00
parent 038f83fbc5
commit 607df04849
1 changed files with 26 additions and 12 deletions
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38
components/layout_2020/flow/inline.rs
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@ -120,8 +120,11 @@ impl InlineFormattingContext {
add!(last_fragment, inline_end);
},
InlineLevelBox::TextRun(text_run) => {
let (_, _, _, runs, break_at_start) =
text_run.break_and_shape(layout_context);
let BreakAndShapeResult {
runs,
break_at_start,
..
} = text_run.break_and_shape(layout_context);
if break_at_start {
self.line_break_opportunity()
}
@ -486,11 +489,16 @@ fn layout_atomic<'box_tree>(
.push(Fragment::Box(fragment));
}
struct BreakAndShapeResult {
font_ascent: Au,
font_line_gap: Au,
font_key: FontInstanceKey,
runs: Vec<GlyphRun>,
break_at_start: bool,
}
impl TextRun {
fn break_and_shape(
&self,
layout_context: &LayoutContext,
) -> (Au, Au, FontInstanceKey, Vec<GlyphRun>, bool) {
fn break_and_shape(&self, layout_context: &LayoutContext) -> BreakAndShapeResult {
use gfx::font::ShapingFlags;
use style::computed_values::text_rendering::T as TextRendering;
use style::computed_values::word_break::T as WordBreak;
@ -537,20 +545,26 @@ impl TextRun {
&mut None,
);
(
font.metrics.ascent,
font.metrics.line_gap,
font.font_key,
BreakAndShapeResult {
font_ascent: font.metrics.ascent,
font_line_gap: font.metrics.line_gap,
font_key: font.font_key,
runs,
break_at_start,
)
}
})
}
fn layout(&self, layout_context: &LayoutContext, ifc: &mut InlineFormattingContextState) {
use style::values::generics::text::LineHeight;
let (font_ascent, font_line_gap, font_key, runs, _) = self.break_and_shape(layout_context);
let BreakAndShapeResult {
font_ascent,
font_line_gap,
font_key,
runs,
break_at_start: _,
} = self.break_and_shape(layout_context);
let font_size = self.parent_style.get_font().font_size.size.0;
let mut runs = runs.iter();
loop {