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denoland-deno/cli/doc/variable.rs
2020-04-30 16:40:51 +02:00

40 lines
1.1 KiB
Rust

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use crate::swc_ecma_ast;
use serde::Serialize;
use super::ts_type::ts_type_ann_to_def;
use super::ts_type::TsTypeDef;
#[derive(Debug, Serialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct VariableDef {
pub ts_type: Option<TsTypeDef>,
pub kind: swc_ecma_ast::VarDeclKind,
}
// TODO: change this function to return Vec<(String, VariableDef)> as single
// var declaration can have multiple declarators
pub fn get_doc_for_var_decl(
var_decl: &swc_ecma_ast::VarDecl,
) -> (String, VariableDef) {
assert!(!var_decl.decls.is_empty());
let var_declarator = var_decl.decls.get(0).unwrap();
let var_name = match &var_declarator.name {
swc_ecma_ast::Pat::Ident(ident) => ident.sym.to_string(),
_ => "<TODO>".to_string(),
};
let maybe_ts_type = match &var_declarator.name {
swc_ecma_ast::Pat::Ident(ident) => {
ident.type_ann.as_ref().map(|rt| ts_type_ann_to_def(rt))
}
_ => None,
};
let variable_def = VariableDef {
ts_type: maybe_ts_type,
kind: var_decl.kind,
};
(var_name, variable_def)
}