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UGLY CODE SIZE HACK #492

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UGLY CODE SIZE HACK #492

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10 changes: 5 additions & 5 deletions generator/src/generator/error_events.rs
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -312,7 +312,7 @@ fn generate_events(out: &mut Output, module: &xcbgen::defs::Module) {
}
outln!(
out,
"xproto::{}_EVENT => return Ok(Self::{}(event.try_into()?)),",
"xproto::{}_EVENT => return xproto::{}Event::ugly_hack(event),",
super::camel_case_to_upper_snake(event_name),
event_name,
);
Expand Down Expand Up @@ -367,10 +367,10 @@ fn generate_events(out: &mut Output, module: &xcbgen::defs::Module) {
}
outln!(
out.indent(),
"{}::{}_EVENT => Ok(Self::{}{}(event.try_into()?)),",
"{}::{}_EVENT => {}::{}Event::ugly_hack(event),",
ns.header,
super::camel_case_to_upper_snake(event_def.name()),
get_ns_name_prefix(ns),
ns.header,
event_def.name(),
);
}
Expand Down Expand Up @@ -424,10 +424,10 @@ fn generate_events(out: &mut Output, module: &xcbgen::defs::Module) {
}
outln!(
out.indent(),
"{}::{}_EVENT => Ok(Self::{}{}(event.try_into()?)),",
"{}::{}_EVENT => {}::{}Event::ugly_hack(event),",
ns.header,
super::camel_case_to_upper_snake(event_def.name()),
get_ns_name_prefix(ns),
ns.header,
event_def.name(),
);
}
Expand Down
53 changes: 53 additions & 0 deletions generator/src/generator/namespace.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1662,6 +1662,59 @@ impl<'ns, 'c> NamespaceGenerator<'ns, 'c> {
self.emit_event_or_error_serialize(&full_name, &*fields, &deducible_fields, out);
}

let deducible_fields = gather_deducible_fields(&*fields);
outln!(out, "impl {name} {{", name=full_name);
out.indented(|out| {
outln!(out, "pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {{");
out.indented(|out| {
Self::emit_let_value_for_dynamic_align(&fields, out);
for field in fields.iter() {
self.emit_field_parse(
field,
"",
"remaining",
FieldContainer::Other,
out,
);
}
for field in fields.iter() {
if !field
.name()
.map(|field_name| deducible_fields.contains_key(field_name))
.unwrap_or(false)
{
self.emit_field_post_parse(field, out);
}
}
let field_names = fields
.iter()
.filter_map(|field| {
if self.field_is_visible(field, &deducible_fields) {
Some(to_rust_variable_name(field.name().unwrap()))
} else {
None
}
})
.collect::<Vec<_>>();
outln!(out, "let _ = remaining;");
outln!(
out,
"let result = {}Event {{ {} }};",
name,
field_names.join(", ")
);
let prefix = get_ns_name_prefix(&self.ns);
outln!(
out,
"Ok(super::Event::{}{}(result))",
prefix,
name
);
});
outln!(out, "}}");
});
outln!(out, "}}");

outln!(out, "");
}

Expand Down
16 changes: 16 additions & 0 deletions src/protocol/damage.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -661,6 +661,22 @@ impl From<NotifyEvent> for [u8; 32] {
Self::from(&input)
}
}
impl NotifyEvent {
pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {
let (response_type, remaining) = u8::try_parse(remaining)?;
let (level, remaining) = u8::try_parse(remaining)?;
let (sequence, remaining) = u16::try_parse(remaining)?;
let (drawable, remaining) = xproto::Drawable::try_parse(remaining)?;
let (damage, remaining) = Damage::try_parse(remaining)?;
let (timestamp, remaining) = xproto::Timestamp::try_parse(remaining)?;
let (area, remaining) = xproto::Rectangle::try_parse(remaining)?;
let (geometry, remaining) = xproto::Rectangle::try_parse(remaining)?;
let level = level.try_into()?;
let _ = remaining;
let result = NotifyEvent { response_type, level, sequence, drawable, damage, timestamp, area, geometry };
Ok(super::Event::DamageNotify(result))
}
}

/// Extension trait defining the requests of this extension.
pub trait ConnectionExt: RequestConnection {
Expand Down
30 changes: 30 additions & 0 deletions src/protocol/dri2.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2009,6 +2009,25 @@ impl From<BufferSwapCompleteEvent> for [u8; 32] {
Self::from(&input)
}
}
impl BufferSwapCompleteEvent {
pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {
let (response_type, remaining) = u8::try_parse(remaining)?;
let remaining = remaining.get(1..).ok_or(ParseError::ParseError)?;
let (sequence, remaining) = u16::try_parse(remaining)?;
let (event_type, remaining) = u16::try_parse(remaining)?;
let remaining = remaining.get(2..).ok_or(ParseError::ParseError)?;
let (drawable, remaining) = xproto::Drawable::try_parse(remaining)?;
let (ust_hi, remaining) = u32::try_parse(remaining)?;
let (ust_lo, remaining) = u32::try_parse(remaining)?;
let (msc_hi, remaining) = u32::try_parse(remaining)?;
let (msc_lo, remaining) = u32::try_parse(remaining)?;
let (sbc, remaining) = u32::try_parse(remaining)?;
let event_type = event_type.try_into()?;
let _ = remaining;
let result = BufferSwapCompleteEvent { response_type, sequence, event_type, drawable, ust_hi, ust_lo, msc_hi, msc_lo, sbc };
Ok(super::Event::Dri2BufferSwapComplete(result))
}
}

/// Opcode for the InvalidateBuffers event
pub const INVALIDATE_BUFFERS_EVENT: u8 = 1;
Expand Down Expand Up @@ -2085,6 +2104,17 @@ impl From<InvalidateBuffersEvent> for [u8; 32] {
Self::from(&input)
}
}
impl InvalidateBuffersEvent {
pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {
let (response_type, remaining) = u8::try_parse(remaining)?;
let remaining = remaining.get(1..).ok_or(ParseError::ParseError)?;
let (sequence, remaining) = u16::try_parse(remaining)?;
let (drawable, remaining) = xproto::Drawable::try_parse(remaining)?;
let _ = remaining;
let result = InvalidateBuffersEvent { response_type, sequence, drawable };
Ok(super::Event::Dri2InvalidateBuffers(result))
}
}

/// Extension trait defining the requests of this extension.
pub trait ConnectionExt: RequestConnection {
Expand Down
39 changes: 39 additions & 0 deletions src/protocol/glx.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -297,6 +297,27 @@ impl From<PbufferClobberEvent> for [u8; 32] {
Self::from(&input)
}
}
impl PbufferClobberEvent {
pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {
let (response_type, remaining) = u8::try_parse(remaining)?;
let remaining = remaining.get(1..).ok_or(ParseError::ParseError)?;
let (sequence, remaining) = u16::try_parse(remaining)?;
let (event_type, remaining) = u16::try_parse(remaining)?;
let (draw_type, remaining) = u16::try_parse(remaining)?;
let (drawable, remaining) = Drawable::try_parse(remaining)?;
let (b_mask, remaining) = u32::try_parse(remaining)?;
let (aux_buffer, remaining) = u16::try_parse(remaining)?;
let (x, remaining) = u16::try_parse(remaining)?;
let (y, remaining) = u16::try_parse(remaining)?;
let (width, remaining) = u16::try_parse(remaining)?;
let (height, remaining) = u16::try_parse(remaining)?;
let (count, remaining) = u16::try_parse(remaining)?;
let remaining = remaining.get(4..).ok_or(ParseError::ParseError)?;
let _ = remaining;
let result = PbufferClobberEvent { response_type, sequence, event_type, draw_type, drawable, b_mask, aux_buffer, x, y, width, height, count };
Ok(super::Event::GlxPbufferClobber(result))
}
}

/// Opcode for the BufferSwapComplete event
pub const BUFFER_SWAP_COMPLETE_EVENT: u8 = 1;
Expand Down Expand Up @@ -391,6 +412,24 @@ impl From<BufferSwapCompleteEvent> for [u8; 32] {
Self::from(&input)
}
}
impl BufferSwapCompleteEvent {
pub(crate) fn ugly_hack(remaining: &[u8]) -> Result<super::Event, ParseError> {
let (response_type, remaining) = u8::try_parse(remaining)?;
let remaining = remaining.get(1..).ok_or(ParseError::ParseError)?;
let (sequence, remaining) = u16::try_parse(remaining)?;
let (event_type, remaining) = u16::try_parse(remaining)?;
let remaining = remaining.get(2..).ok_or(ParseError::ParseError)?;
let (drawable, remaining) = Drawable::try_parse(remaining)?;
let (ust_hi, remaining) = u32::try_parse(remaining)?;
let (ust_lo, remaining) = u32::try_parse(remaining)?;
let (msc_hi, remaining) = u32::try_parse(remaining)?;
let (msc_lo, remaining) = u32::try_parse(remaining)?;
let (sbc, remaining) = u32::try_parse(remaining)?;
let _ = remaining;
let result = BufferSwapCompleteEvent { response_type, sequence, event_type, drawable, ust_hi, ust_lo, msc_hi, msc_lo, sbc };
Ok(super::Event::GlxBufferSwapComplete(result))
}
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u16)]
Expand Down
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