1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
use super::error::{GenError, GenResult};
use super::*;
impl Codegen {
pub(super) fn generate_param(&self, node: &IrNode) -> GenResult<TokenStream> {
match node {
IrNode::Param {
decorators, pat, ..
} => {
let pat_code = self.generate_pat(pat)?;
let decorators_code: Vec<TokenStream> = decorators
.iter()
.map(|d| self.generate_decorator(d))
.collect::<GenResult<Vec<_>>>()?;
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::Param {
span: macroforge_ts::swc_core::common::DUMMY_SP,
decorators: vec![#(#decorators_code),*],
pat: #pat_code,
}
})
}
IrNode::BindingIdent {
name,
type_ann,
optional: _,
..
} => {
let name_code = self.generate_ident(name)?;
// Type annotation is legitimately optional for parameters
let type_ann_code = type_ann
.as_ref()
.map(|t| -> GenResult<TokenStream> {
let tc = self.generate_type_ann(t)?;
Ok(quote! { Some(Box::new(#tc)) })
})
.transpose()?
.unwrap_or(quote! { None });
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::Param {
span: macroforge_ts::swc_core::common::DUMMY_SP,
decorators: vec![],
pat: macroforge_ts::swc_core::ecma::ast::Pat::Ident(
macroforge_ts::swc_core::ecma::ast::BindingIdent {
id: #name_code,
type_ann: #type_ann_code,
}
),
}
})
}
// Ident nodes are valid - treat them as simple parameter identifiers
IrNode::Ident { .. } | IrNode::Placeholder { .. } => {
let ident_code = self.generate_ident(node)?;
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::Param {
span: macroforge_ts::swc_core::common::DUMMY_SP,
decorators: vec![],
pat: macroforge_ts::swc_core::ecma::ast::Pat::Ident(
macroforge_ts::swc_core::ecma::ast::BindingIdent {
id: #ident_code,
type_ann: None,
}
),
}
})
}
_ => Err(GenError::unexpected_node(
"parameter",
node,
&["Param", "BindingIdent", "Ident", "Placeholder"],
)),
}
}
/// Generate params as `Vec<TsFnParam>` for interface method signatures.
pub(super) fn generate_ts_fn_params(&self, params: &[IrNode]) -> GenResult<TokenStream> {
let params_code: Vec<TokenStream> = params
.iter()
.map(|p| self.generate_ts_fn_param(p))
.collect::<GenResult<Vec<_>>>()?;
Ok(quote! { vec![#(#params_code),*] })
}
/// Generate a single `TsFnParam` for interface method signatures.
pub(super) fn generate_ts_fn_param(&self, node: &IrNode) -> GenResult<TokenStream> {
match node {
IrNode::BindingIdent {
name,
type_ann,
optional,
..
} => {
let name_code = self.generate_ident_with_optional(name, *optional)?;
// Type annotation is legitimately optional for parameters
let type_ann_code = type_ann
.as_ref()
.map(|t| -> GenResult<TokenStream> {
let tc = self.generate_type_ann(t)?;
Ok(quote! { Some(Box::new(#tc)) })
})
.transpose()?
.unwrap_or(quote! { None });
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::TsFnParam::Ident(
macroforge_ts::swc_core::ecma::ast::BindingIdent {
id: #name_code,
type_ann: #type_ann_code,
}
)
})
}
IrNode::Param { pat, .. } => {
// Recurse to the pattern
self.generate_ts_fn_param(pat)
}
IrNode::RestPat { arg, type_ann, .. } => {
let arg_code = self.generate_pat(arg)?;
// Type annotation is legitimately optional for rest parameters
let type_ann_code = type_ann
.as_ref()
.map(|t| -> GenResult<TokenStream> {
let tc = self.generate_type_ann(t)?;
Ok(quote! { Some(Box::new(#tc)) })
})
.transpose()?
.unwrap_or(quote! { None });
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::TsFnParam::Rest(
macroforge_ts::swc_core::ecma::ast::RestPat {
span: macroforge_ts::swc_core::common::DUMMY_SP,
dot3_token: macroforge_ts::swc_core::common::DUMMY_SP,
arg: Box::new(#arg_code),
type_ann: #type_ann_code,
}
)
})
}
// Ident nodes are valid - treat them as simple parameter identifiers
IrNode::Ident { .. } | IrNode::Placeholder { .. } => {
let ident_code = self.generate_ident(node)?;
Ok(quote! {
macroforge_ts::swc_core::ecma::ast::TsFnParam::Ident(
macroforge_ts::swc_core::ecma::ast::BindingIdent {
id: #ident_code,
type_ann: None,
}
)
})
}
_ => Err(GenError::unexpected_node(
"TypeScript function parameter",
node,
&["BindingIdent", "Param", "RestPat", "Ident", "Placeholder"],
)),
}
}
pub(super) fn generate_params(&self, params: &[IrNode]) -> GenResult<TokenStream> {
let params_code: Vec<TokenStream> = params
.iter()
.map(|p| self.generate_param(p))
.collect::<GenResult<Vec<_>>>()?;
Ok(quote! { vec![#(#params_code),*] })
}
}