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// build.rs
fn main() {
let int_types = ["i8", "i16", "i32", "i64", "i128"];
// Start with the necessary imports
let mut content = String::from("use crate::Scalar;\n\n");
for &sf in &int_types {
for &se in &int_types {
for &df in &int_types {
for &de in &int_types {
// Skip identical conversions (handled by blanket impl)
if sf == df && se == de {
continue;
}
// Add the From implementation directly
content += &format!(
r#"
impl From<Scalar<{sf}, {se}>> for Scalar<{df}, {de}> {{
fn from(source: Scalar<{sf}, {se}>) -> Self {{
Self::from(&source)
}}
}}
"#,
sf = sf,
se = se,
df = df,
de = de
);
}
}
}
}
std::fs::write("src/generated_conversions.rs", content)
.expect("Failed to write generated code");
}