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Uses element names instead of indices for the parameters of multivector constructors in rust.

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This commit is contained in:
Alexander Meißner 2023-07-24 22:00:30 +02:00
parent 8a05c34009
commit ca88a2981c
2 changed files with 30 additions and 9 deletions
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18
codegen/src/emit.rs
View file

@ -1,3 +1,5 @@
use crate::{algebra::BasisElement, ast::AstNode, glsl, rust};
pub fn camel_to_snake_case<W: std::io::Write>(collector: &mut W, name: &str) -> std::io::Result<()> {
let mut underscores = name.chars().enumerate().filter(|(_i, c)| c.is_uppercase()).map(|(i, _c)| i).peekable();
for (i, c) in name.to_lowercase().bytes().enumerate() {
@ -21,7 +23,21 @@ pub fn emit_indentation<W: std::io::Write>(collector: &mut W, indentation: usize
Ok(())
}
use crate::{ast::AstNode, glsl, rust};
pub fn emit_element_name<W: std::io::Write>(collector: &mut W, element: &BasisElement) -> std::io::Result<()> {
debug_assert_ne!(element.scalar, 0);
if element.index == 0 {
collector.write_all(b"scalar")
} else {
collector.write_all(if element.scalar < 0 { b"_e" } else { b"e" })?;
collector.write_all(
element
.component_bits()
.map(|index| format!("{:X}", index))
.collect::<String>()
.as_bytes(),
)
}
}
pub struct Emitter<W: std::io::Write> {
pub rust_collector: W,

19
codegen/src/rust.rs
View file

@ -1,6 +1,6 @@
use crate::{
ast::{AstNode, DataType, Expression, ExpressionContent, Parameter},
emit::{camel_to_snake_case, emit_indentation},
emit::{camel_to_snake_case, emit_element_name, emit_indentation},
};
fn emit_data_type<W: std::io::Write>(collector: &mut W, data_type: &DataType) -> std::io::Result<()> {
@ -245,22 +245,27 @@ pub fn emit_code<W: std::io::Write>(collector: &mut W, ast_node: &AstNode, inden
collector.write_all(b"#[allow(clippy::too_many_arguments)]\n")?;
emit_indentation(collector, indentation + 1)?;
collector.write_all(b"pub const fn new(")?;
for i in 0..element_count {
if i > 0 {
let mut element_index = 0;
for group in class.grouped_basis.iter() {
for element in group.iter() {
if element_index > 0 {
collector.write_all(b", ")?;
}
collector.write_fmt(format_args!("element{}: f32", i))?;
emit_element_name(collector, element)?;
collector.write_all(b": f32")?;
element_index += 1;
}
}
collector.write_all(b") -> Self {\n")?;
emit_indentation(collector, indentation + 2)?;
collector.write_all(b"Self { elements: [")?;
let mut element_index = 0;
element_index = 0;
for (j, group) in class.grouped_basis.iter().enumerate() {
for _ in 0..group.len() {
for element in group.iter() {
if element_index > 0 {
collector.write_all(b", ")?;
}
collector.write_fmt(format_args!("element{}", element_index))?;
emit_element_name(collector, element)?;
element_index += 1;
}
for _ in group.len()..simd_widths[j] {