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use crate::emit::{Emit, EmitContext};
use crate::error::Result;
use crate::module::Module;
#[derive(Debug, Default)]
pub struct ModuleProducers {
fields: Vec<Field>,
}
#[derive(Debug)]
struct Field {
name: String,
values: Vec<Value>,
}
#[derive(Debug)]
struct Value {
name: String,
version: String,
}
impl ModuleProducers {
pub fn add_language(&mut self, language: &str, version: &str) {
self.field("language", language, version);
}
pub fn add_processed_by(&mut self, tool: &str, version: &str) {
self.field("processed-by", tool, version);
}
pub fn add_sdk(&mut self, sdk: &str, version: &str) {
self.field("sdk", sdk, version);
}
fn field(&mut self, field_name: &str, name: &str, version: &str) {
let new_value = Value {
name: name.to_string(),
version: version.to_string(),
};
for field in self.fields.iter_mut() {
if field.name != field_name {
continue;
}
for value in field.values.iter_mut() {
if value.name == name {
*value = new_value;
return;
}
}
field.values.push(new_value);
return;
}
self.fields.push(Field {
name: field_name.to_string(),
values: vec![new_value],
})
}
pub fn clear(&mut self) {
self.fields.truncate(0);
}
}
impl Module {
pub(crate) fn parse_producers_section(
&mut self,
data: wasmparser::ProducersSectionReader,
) -> Result<()> {
log::debug!("parse producers section");
for field in data {
let field = field?;
let mut values = Vec::new();
for value in field.get_producer_field_values_reader()? {
let value = value?;
values.push(Value {
name: value.name.to_string(),
version: value.version.to_string(),
});
}
let name = field.name.to_string();
self.producers.fields.push(Field { name, values });
}
Ok(())
}
}
impl Emit for ModuleProducers {
fn emit(&self, cx: &mut EmitContext) {
log::debug!("emit producers section");
if self.fields.len() > 0 {
cx.custom_section("producers").list(&self.fields);
}
}
}
impl Emit for Field {
fn emit(&self, cx: &mut EmitContext) {
cx.encoder.str(&self.name);
cx.list(&self.values);
}
}
impl Emit for Value {
fn emit(&self, cx: &mut EmitContext) {
cx.encoder.str(&self.name);
cx.encoder.str(&self.version);
}
}