nautilus_codegen/js/
backend.rs

1//! JavaScript/TypeScript-specific implementation of the shared language backend.
2
3use nautilus_schema::ir::ScalarType;
4
5use crate::backend::LanguageBackend;
6
7/// TypeScript / JavaScript language backend.
8pub struct JsBackend;
9
10impl LanguageBackend for JsBackend {
11    fn scalar_to_type(&self, scalar: &ScalarType) -> &'static str {
12        match scalar {
13            ScalarType::String => "string",
14            ScalarType::Int => "number",
15            ScalarType::BigInt => "number",
16            ScalarType::Float => "number",
17            ScalarType::Decimal { .. } => "string", // preserve precision; no decimal.js dependency
18            ScalarType::Boolean => "boolean",
19            ScalarType::DateTime => "Date",
20            ScalarType::Bytes => "Buffer",
21            ScalarType::Json => "Record<string, unknown>",
22            ScalarType::Uuid => "string",
23            ScalarType::Jsonb => "Record<string, unknown>",
24            ScalarType::Xml | ScalarType::Char { .. } | ScalarType::VarChar { .. } => "string",
25        }
26    }
27
28    fn array_type(&self, inner: &str) -> String {
29        format!("{}[]", inner)
30    }
31
32    fn not_in_suffix(&self) -> &'static str {
33        "notIn"
34    }
35
36    fn startswith_suffix(&self) -> &'static str {
37        "startsWith"
38    }
39
40    fn endswith_suffix(&self) -> &'static str {
41        "endsWith"
42    }
43
44    fn null_suffix(&self) -> &'static str {
45        "isNull"
46    }
47
48    fn null_literal(&self) -> &'static str {
49        "null"
50    }
51
52    fn true_literal(&self) -> &'static str {
53        "true"
54    }
55
56    fn false_literal(&self) -> &'static str {
57        "false"
58    }
59
60    fn string_literal(&self, s: &str) -> String {
61        format!("'{}'", s)
62    }
63
64    fn empty_array_literal(&self) -> &'static str {
65        "[]"
66    }
67
68    fn enum_variant_literal(&self, variant: &str) -> String {
69        format!("'{}'", variant)
70    }
71
72    fn relation_type(&self, target_model: &str) -> String {
73        format!("{}Model", target_model)
74    }
75}
nautilus_codegen/js/backend.rs

nautilus_codegen/js/
backend.rs
