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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use serde::Serialize;
use swc_ecma_ast;
use super::parser::DocParser;
use super::ts_type::ts_type_ann_to_def;
use super::ts_type::TsTypeDef;
use super::Location;
use super::ParamDef;
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct InterfaceMethodDef {
// TODO: type_params
pub name: String,
pub location: Location,
pub js_doc: Option<String>,
pub params: Vec<ParamDef>,
pub return_type: Option<TsTypeDef>,
}
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct InterfacePropertyDef {
// TODO: type_params
pub name: String,
pub location: Location,
pub js_doc: Option<String>,
pub params: Vec<ParamDef>,
pub computed: bool,
pub optional: bool,
pub ts_type: Option<TsTypeDef>,
}
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct InterfaceCallSignatureDef {
// TODO: type_params
pub location: Location,
pub js_doc: Option<String>,
pub params: Vec<ParamDef>,
pub ts_type: Option<TsTypeDef>,
}
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct InterfaceDef {
// TODO: extends, type params
pub methods: Vec<InterfaceMethodDef>,
pub properties: Vec<InterfacePropertyDef>,
pub call_signatures: Vec<InterfaceCallSignatureDef>,
}
fn expr_to_name(expr: &swc_ecma_ast::Expr) -> String {
use swc_ecma_ast::Expr::*;
use swc_ecma_ast::ExprOrSuper::*;
match expr {
Ident(ident) => ident.sym.to_string(),
Member(member_expr) => {
let left = match &member_expr.obj {
Super(_) => "TODO".to_string(),
Expr(boxed_expr) => expr_to_name(&*boxed_expr),
};
let right = expr_to_name(&*member_expr.prop);
format!("[{}.{}]", left, right)
}
_ => "<TODO>".to_string(),
}
}
pub fn get_doc_for_ts_interface_decl(
doc_parser: &DocParser,
interface_decl: &swc_ecma_ast::TsInterfaceDecl,
) -> (String, InterfaceDef) {
let interface_name = interface_decl.id.sym.to_string();
let mut methods = vec![];
let mut properties = vec![];
let mut call_signatures = vec![];
for type_element in &interface_decl.body.body {
use swc_ecma_ast::TsTypeElement::*;
match &type_element {
TsMethodSignature(ts_method_sig) => {
let method_js_doc = doc_parser.js_doc_for_span(ts_method_sig.span);
let mut params = vec![];
for param in &ts_method_sig.params {
use swc_ecma_ast::TsFnParam::*;
let param_def = match param {
Ident(ident) => {
let ts_type = ident
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
ParamDef {
name: ident.sym.to_string(),
ts_type,
}
}
_ => ParamDef {
name: "<TODO>".to_string(),
ts_type: None,
},
};
params.push(param_def);
}
let name = expr_to_name(&*ts_method_sig.key);
let maybe_return_type = ts_method_sig
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
let method_def = InterfaceMethodDef {
name,
js_doc: method_js_doc,
location: doc_parser
.source_map
.lookup_char_pos(ts_method_sig.span.lo())
.into(),
params,
return_type: maybe_return_type,
};
methods.push(method_def);
}
TsPropertySignature(ts_prop_sig) => {
let prop_js_doc = doc_parser.js_doc_for_span(ts_prop_sig.span);
let name = match &*ts_prop_sig.key {
swc_ecma_ast::Expr::Ident(ident) => ident.sym.to_string(),
_ => "TODO".to_string(),
};
let mut params = vec![];
for param in &ts_prop_sig.params {
use swc_ecma_ast::TsFnParam::*;
let param_def = match param {
Ident(ident) => {
let ts_type = ident
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
ParamDef {
name: ident.sym.to_string(),
ts_type,
}
}
_ => ParamDef {
name: "<TODO>".to_string(),
ts_type: None,
},
};
params.push(param_def);
}
let ts_type = ts_prop_sig
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
let prop_def = InterfacePropertyDef {
name,
js_doc: prop_js_doc,
location: doc_parser
.source_map
.lookup_char_pos(ts_prop_sig.span.lo())
.into(),
params,
ts_type,
computed: ts_prop_sig.computed,
optional: ts_prop_sig.optional,
};
properties.push(prop_def);
}
TsCallSignatureDecl(ts_call_sig) => {
let call_sig_js_doc = doc_parser.js_doc_for_span(ts_call_sig.span);
let mut params = vec![];
for param in &ts_call_sig.params {
use swc_ecma_ast::TsFnParam::*;
let param_def = match param {
Ident(ident) => {
let ts_type = ident
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
ParamDef {
name: ident.sym.to_string(),
ts_type,
}
}
_ => ParamDef {
name: "<TODO>".to_string(),
ts_type: None,
},
};
params.push(param_def);
}
let ts_type = ts_call_sig
.type_ann
.as_ref()
.map(|rt| ts_type_ann_to_def(&doc_parser.source_map, rt));
let call_sig_def = InterfaceCallSignatureDef {
js_doc: call_sig_js_doc,
location: doc_parser
.source_map
.lookup_char_pos(ts_call_sig.span.lo())
.into(),
params,
ts_type,
};
call_signatures.push(call_sig_def);
}
// TODO:
TsConstructSignatureDecl(_) => {}
TsIndexSignature(_) => {}
}
}
let interface_def = InterfaceDef {
methods,
properties,
call_signatures,
};
(interface_name, interface_def)
}
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