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use super::IType;
use super::IRecordType;
use crate::FaaSModuleInterface;
use marine::RecordTypes;
use itertools::Itertools;
use serde::Serialize;
use std::fmt;
use std::collections::HashMap;
use std::collections::HashSet;
#[derive(Debug, PartialEq, Eq, Clone, Serialize)]
pub struct FaaSInterface<'a> {
pub modules: HashMap<&'a str, FaaSModuleInterface<'a>>,
}
impl<'a> fmt::Display for FaaSInterface<'a> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut printed_record_types: HashSet<&IRecordType> = HashSet::new();
for (_, module_interface) in self.modules.iter() {
for (_, record_type) in module_interface.record_types.iter() {
if !printed_record_types.insert(record_type) {
continue;
}
writeln!(f, "{} {{", record_type.name)?;
for field in record_type.fields.iter() {
writeln!(
f,
" {}: {}",
field.name,
itype_text_view(&field.ty, &module_interface.record_types)
)?;
}
writeln!(f, "}}")?;
}
}
for (name, module_interface) in self.modules.iter() {
writeln!(f, "\n{}:", *name)?;
for function_signature in module_interface.function_signatures.iter() {
write!(f, " fn {}(", function_signature.name)?;
let args = function_signature
.arguments
.iter()
.map(|arg| {
format!(
"{}: {}",
arg.name,
itype_text_view(&arg.ty, &module_interface.record_types)
)
})
.join(", ");
let outputs = &function_signature.outputs;
if outputs.is_empty() {
writeln!(f, "{})", args)?;
} else if outputs.len() == 1 {
writeln!(
f,
"{}) -> {}",
args,
itype_text_view(&outputs[0], &module_interface.record_types)
)?;
} else {
unimplemented!()
}
}
}
Ok(())
}
}
pub fn itype_text_view(arg_ty: &IType, record_types: &RecordTypes) -> String {
match arg_ty {
IType::Record(record_type_id) => {
let record = record_types.get(record_type_id).unwrap();
record.name.clone()
}
IType::Array(array_ty) => format!("Array<{}>", itype_text_view(array_ty, record_types)),
t => format!("{:?}", t),
}
}