|
| 1 | +use std::path::{Path, PathBuf}; |
| 2 | + |
| 3 | +use pathdiff::diff_paths; |
| 4 | +use turbopack_binding::swc::core::{ |
| 5 | + common::{errors::HANDLER, FileName, DUMMY_SP}, |
| 6 | + ecma::{ |
| 7 | + ast::{ |
| 8 | + ArrayLit, ArrowExpr, BinExpr, BinaryOp, BlockStmtOrExpr, Bool, CallExpr, Callee, Expr, |
| 9 | + ExprOrSpread, Id, Ident, ImportDecl, ImportSpecifier, KeyValueProp, Lit, MemberExpr, |
| 10 | + MemberProp, Null, ObjectLit, Prop, PropName, PropOrSpread, Str, Tpl, |
| 11 | + }, |
| 12 | + atoms::js_word, |
| 13 | + utils::ExprFactory, |
| 14 | + visit::{Fold, FoldWith}, |
| 15 | + }, |
| 16 | +}; |
| 17 | + |
| 18 | +pub fn next_dynamic( |
| 19 | + is_development: bool, |
| 20 | + is_server: bool, |
| 21 | + is_server_components: bool, |
| 22 | + filename: FileName, |
| 23 | + pages_dir: Option<PathBuf>, |
| 24 | +) -> impl Fold { |
| 25 | + NextDynamicPatcher { |
| 26 | + is_development, |
| 27 | + is_server, |
| 28 | + is_server_components, |
| 29 | + pages_dir, |
| 30 | + filename, |
| 31 | + dynamic_bindings: vec![], |
| 32 | + is_next_dynamic_first_arg: false, |
| 33 | + dynamically_imported_specifier: None, |
| 34 | + } |
| 35 | +} |
| 36 | + |
| 37 | +#[derive(Debug)] |
| 38 | +struct NextDynamicPatcher { |
| 39 | + is_development: bool, |
| 40 | + is_server: bool, |
| 41 | + is_server_components: bool, |
| 42 | + pages_dir: Option<PathBuf>, |
| 43 | + filename: FileName, |
| 44 | + dynamic_bindings: Vec<Id>, |
| 45 | + is_next_dynamic_first_arg: bool, |
| 46 | + dynamically_imported_specifier: Option<String>, |
| 47 | +} |
| 48 | + |
| 49 | +impl Fold for NextDynamicPatcher { |
| 50 | + fn fold_import_decl(&mut self, decl: ImportDecl) -> ImportDecl { |
| 51 | + let ImportDecl { |
| 52 | + ref src, |
| 53 | + ref specifiers, |
| 54 | + .. |
| 55 | + } = decl; |
| 56 | + if &src.value == "next/dynamic" { |
| 57 | + for specifier in specifiers { |
| 58 | + if let ImportSpecifier::Default(default_specifier) = specifier { |
| 59 | + self.dynamic_bindings.push(default_specifier.local.to_id()); |
| 60 | + } |
| 61 | + } |
| 62 | + } |
| 63 | + |
| 64 | + decl |
| 65 | + } |
| 66 | + |
| 67 | + fn fold_call_expr(&mut self, expr: CallExpr) -> CallExpr { |
| 68 | + if self.is_next_dynamic_first_arg { |
| 69 | + if let Callee::Import(..) = &expr.callee { |
| 70 | + match &*expr.args[0].expr { |
| 71 | + Expr::Lit(Lit::Str(Str { value, .. })) => { |
| 72 | + self.dynamically_imported_specifier = Some(value.to_string()); |
| 73 | + } |
| 74 | + Expr::Tpl(Tpl { exprs, quasis, .. }) if exprs.is_empty() => { |
| 75 | + self.dynamically_imported_specifier = Some(quasis[0].raw.to_string()); |
| 76 | + } |
| 77 | + _ => {} |
| 78 | + } |
| 79 | + } |
| 80 | + return expr.fold_children_with(self); |
| 81 | + } |
| 82 | + let mut expr = expr.fold_children_with(self); |
| 83 | + if let Callee::Expr(i) = &expr.callee { |
| 84 | + if let Expr::Ident(identifier) = &**i { |
| 85 | + if self.dynamic_bindings.contains(&identifier.to_id()) { |
| 86 | + if expr.args.is_empty() { |
| 87 | + HANDLER.with(|handler| { |
| 88 | + handler |
| 89 | + .struct_span_err( |
| 90 | + identifier.span, |
| 91 | + "next/dynamic requires at least one argument", |
| 92 | + ) |
| 93 | + .emit() |
| 94 | + }); |
| 95 | + return expr; |
| 96 | + } else if expr.args.len() > 2 { |
| 97 | + HANDLER.with(|handler| { |
| 98 | + handler |
| 99 | + .struct_span_err( |
| 100 | + identifier.span, |
| 101 | + "next/dynamic only accepts 2 arguments", |
| 102 | + ) |
| 103 | + .emit() |
| 104 | + }); |
| 105 | + return expr; |
| 106 | + } |
| 107 | + if expr.args.len() == 2 { |
| 108 | + match &*expr.args[1].expr { |
| 109 | + Expr::Object(_) => {} |
| 110 | + _ => { |
| 111 | + HANDLER.with(|handler| { |
| 112 | + handler |
| 113 | + .struct_span_err( |
| 114 | + identifier.span, |
| 115 | + "next/dynamic options must be an object literal.\nRead more: https://nextjs.org/docs/messages/invalid-dynamic-options-type", |
| 116 | + ) |
| 117 | + .emit(); |
| 118 | + }); |
| 119 | + return expr; |
| 120 | + } |
| 121 | + } |
| 122 | + } |
| 123 | + |
| 124 | + self.is_next_dynamic_first_arg = true; |
| 125 | + expr.args[0].expr = expr.args[0].expr.clone().fold_with(self); |
| 126 | + self.is_next_dynamic_first_arg = false; |
| 127 | + |
| 128 | + if self.dynamically_imported_specifier.is_none() { |
| 129 | + return expr; |
| 130 | + } |
| 131 | + |
| 132 | + // dev client or server: |
| 133 | + // loadableGenerated: { |
| 134 | + // modules: |
| 135 | + // ["/project/src/file-being-transformed.js -> " + '../components/hello'] } |
| 136 | + |
| 137 | + // prod client |
| 138 | + // loadableGenerated: { |
| 139 | + // webpack: () => [require.resolveWeak('../components/hello')], |
| 140 | + let generated = Box::new(Expr::Object(ObjectLit { |
| 141 | + span: DUMMY_SP, |
| 142 | + props: if self.is_development || self.is_server { |
| 143 | + vec![PropOrSpread::Prop(Box::new(Prop::KeyValue(KeyValueProp { |
| 144 | + key: PropName::Ident(Ident::new("modules".into(), DUMMY_SP)), |
| 145 | + value: Box::new(Expr::Array(ArrayLit { |
| 146 | + elems: vec![Some(ExprOrSpread { |
| 147 | + expr: Box::new(Expr::Bin(BinExpr { |
| 148 | + span: DUMMY_SP, |
| 149 | + op: BinaryOp::Add, |
| 150 | + left: Box::new(Expr::Lit(Lit::Str(Str { |
| 151 | + value: format!( |
| 152 | + "{} -> ", |
| 153 | + rel_filename( |
| 154 | + self.pages_dir.as_deref(), |
| 155 | + &self.filename |
| 156 | + ) |
| 157 | + ) |
| 158 | + .into(), |
| 159 | + span: DUMMY_SP, |
| 160 | + raw: None, |
| 161 | + }))), |
| 162 | + right: Box::new(Expr::Lit(Lit::Str(Str { |
| 163 | + value: self |
| 164 | + .dynamically_imported_specifier |
| 165 | + .as_ref() |
| 166 | + .unwrap() |
| 167 | + .clone() |
| 168 | + .into(), |
| 169 | + span: DUMMY_SP, |
| 170 | + raw: None, |
| 171 | + }))), |
| 172 | + })), |
| 173 | + spread: None, |
| 174 | + })], |
| 175 | + span: DUMMY_SP, |
| 176 | + })), |
| 177 | + })))] |
| 178 | + } else { |
| 179 | + vec![PropOrSpread::Prop(Box::new(Prop::KeyValue(KeyValueProp { |
| 180 | + key: PropName::Ident(Ident::new("webpack".into(), DUMMY_SP)), |
| 181 | + value: Box::new(Expr::Arrow(ArrowExpr { |
| 182 | + params: vec![], |
| 183 | + body: Box::new(BlockStmtOrExpr::Expr(Box::new(Expr::Array( |
| 184 | + ArrayLit { |
| 185 | + elems: vec![Some(ExprOrSpread { |
| 186 | + expr: Box::new(Expr::Call(CallExpr { |
| 187 | + callee: Callee::Expr(Box::new(Expr::Member( |
| 188 | + MemberExpr { |
| 189 | + obj: Box::new(Expr::Ident(Ident { |
| 190 | + sym: js_word!("require"), |
| 191 | + span: DUMMY_SP, |
| 192 | + optional: false, |
| 193 | + })), |
| 194 | + prop: MemberProp::Ident(Ident { |
| 195 | + sym: "resolveWeak".into(), |
| 196 | + span: DUMMY_SP, |
| 197 | + optional: false, |
| 198 | + }), |
| 199 | + span: DUMMY_SP, |
| 200 | + }, |
| 201 | + ))), |
| 202 | + args: vec![ExprOrSpread { |
| 203 | + expr: Box::new(Expr::Lit(Lit::Str(Str { |
| 204 | + value: self |
| 205 | + .dynamically_imported_specifier |
| 206 | + .as_ref() |
| 207 | + .unwrap() |
| 208 | + .clone() |
| 209 | + .into(), |
| 210 | + span: DUMMY_SP, |
| 211 | + raw: None, |
| 212 | + }))), |
| 213 | + spread: None, |
| 214 | + }], |
| 215 | + span: DUMMY_SP, |
| 216 | + type_args: None, |
| 217 | + })), |
| 218 | + spread: None, |
| 219 | + })], |
| 220 | + span: DUMMY_SP, |
| 221 | + }, |
| 222 | + )))), |
| 223 | + is_async: false, |
| 224 | + is_generator: false, |
| 225 | + span: DUMMY_SP, |
| 226 | + return_type: None, |
| 227 | + type_params: None, |
| 228 | + })), |
| 229 | + })))] |
| 230 | + }, |
| 231 | + })); |
| 232 | + |
| 233 | + let mut props = |
| 234 | + vec![PropOrSpread::Prop(Box::new(Prop::KeyValue(KeyValueProp { |
| 235 | + key: PropName::Ident(Ident::new("loadableGenerated".into(), DUMMY_SP)), |
| 236 | + value: generated, |
| 237 | + })))]; |
| 238 | + |
| 239 | + let mut has_ssr_false = false; |
| 240 | + |
| 241 | + if expr.args.len() == 2 { |
| 242 | + if let Expr::Object(ObjectLit { |
| 243 | + props: options_props, |
| 244 | + .. |
| 245 | + }) = &*expr.args[1].expr |
| 246 | + { |
| 247 | + for prop in options_props.iter() { |
| 248 | + if let Some(KeyValueProp { key, value }) = match prop { |
| 249 | + PropOrSpread::Prop(prop) => match &**prop { |
| 250 | + Prop::KeyValue(key_value_prop) => Some(key_value_prop), |
| 251 | + _ => None, |
| 252 | + }, |
| 253 | + _ => None, |
| 254 | + } { |
| 255 | + if let Some(Ident { |
| 256 | + sym, |
| 257 | + span: _, |
| 258 | + optional: _, |
| 259 | + }) = match key { |
| 260 | + PropName::Ident(ident) => Some(ident), |
| 261 | + _ => None, |
| 262 | + } { |
| 263 | + if sym == "ssr" { |
| 264 | + if let Some(Lit::Bool(Bool { |
| 265 | + value: false, |
| 266 | + span: _, |
| 267 | + })) = value.as_lit() |
| 268 | + { |
| 269 | + has_ssr_false = true |
| 270 | + } |
| 271 | + } |
| 272 | + } |
| 273 | + } |
| 274 | + } |
| 275 | + props.extend(options_props.iter().cloned()); |
| 276 | + } |
| 277 | + } |
| 278 | + |
| 279 | + if has_ssr_false && self.is_server && !self.is_server_components { |
| 280 | + expr.args[0] = Lit::Null(Null { span: DUMMY_SP }).as_arg(); |
| 281 | + } |
| 282 | + |
| 283 | + let second_arg = ExprOrSpread { |
| 284 | + spread: None, |
| 285 | + expr: Box::new(Expr::Object(ObjectLit { |
| 286 | + span: DUMMY_SP, |
| 287 | + props, |
| 288 | + })), |
| 289 | + }; |
| 290 | + |
| 291 | + if expr.args.len() == 2 { |
| 292 | + expr.args[1] = second_arg; |
| 293 | + } else { |
| 294 | + expr.args.push(second_arg) |
| 295 | + } |
| 296 | + self.dynamically_imported_specifier = None; |
| 297 | + } |
| 298 | + } |
| 299 | + } |
| 300 | + expr |
| 301 | + } |
| 302 | +} |
| 303 | + |
| 304 | +fn rel_filename(base: Option<&Path>, file: &FileName) -> String { |
| 305 | + let base = match base { |
| 306 | + Some(v) => v, |
| 307 | + None => return file.to_string(), |
| 308 | + }; |
| 309 | + |
| 310 | + let file = match file { |
| 311 | + FileName::Real(v) => v, |
| 312 | + _ => { |
| 313 | + return file.to_string(); |
| 314 | + } |
| 315 | + }; |
| 316 | + |
| 317 | + let rel_path = diff_paths(file, base); |
| 318 | + |
| 319 | + let rel_path = match rel_path { |
| 320 | + Some(v) => v, |
| 321 | + None => return file.display().to_string(), |
| 322 | + }; |
| 323 | + |
| 324 | + rel_path.display().to_string() |
| 325 | +} |
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