feat(napi/parser): expose span positions of import.meta (#7677)

crates/oxc_parser/src/js/expression.rs

@@ -568,15 +568,16 @@ impl<'a> ParserImpl<'a> {
         meta: IdentifierName<'a>,
     ) -> Result<Expression<'a>> {
         self.bump_any(); // bump `.`
+        let kind = self.cur_kind();
         let property = match self.cur_kind() {
-            Kind::Meta => {
-                self.module_record_builder.visit_import_meta();
-                self.parse_keyword_identifier(Kind::Meta)
-            }
+            Kind::Meta => self.parse_keyword_identifier(Kind::Meta),
             Kind::Target => self.parse_keyword_identifier(Kind::Target),
             _ => self.parse_identifier_name()?,
         };
         let span = self.end_span(span);
+        if kind == Kind::Meta {
+            self.module_record_builder.visit_import_meta(span);
+        }
         Ok(self.ast.expression_meta_property(span, meta, property))
     }
 

crates/oxc_parser/src/module_record.rs

@@ -174,8 +174,9 @@ impl<'a> ModuleRecordBuilder<'a> {
         }
     }
 
-    pub fn visit_import_meta(&mut self) {
+    pub fn visit_import_meta(&mut self, span: Span) {
         self.module_record.has_module_syntax = true;
+        self.module_record.import_metas.push(span);
     }
 
     pub fn visit_module_declaration(&mut self, module_decl: &ModuleDeclaration<'a>) {
@@ -691,4 +692,13 @@ mod module_record_tests {
             }
         );
     }
+
+    #[test]
+    fn import_meta() {
+        let allocator = Allocator::default();
+        let module_record = build(&allocator, "import.meta.foo; import.meta.bar");
+        assert_eq!(module_record.import_metas.len(), 2);
+        assert_eq!(module_record.import_metas[0], Span::new(0, 11));
+        assert_eq!(module_record.import_metas[1], Span::new(17, 28));
+    }
 }

crates/oxc_syntax/src/module_record.rs

@@ -56,6 +56,9 @@ pub struct ModuleRecord<'a> {
 
     /// Local exported bindings
     pub exported_bindings: FxHashMap<Atom<'a>, Span>,
+
+    /// Span position of `import.meta`.
+    pub import_metas: Vec<'a, Span>,
 }
 
 impl<'a> ModuleRecord<'a> {
@@ -69,6 +72,7 @@ impl<'a> ModuleRecord<'a> {
             indirect_export_entries: Vec::new_in(allocator),
             star_export_entries: Vec::new_in(allocator),
             exported_bindings: FxHashMap::default(),
+            import_metas: Vec::new_in(allocator),
         }
     }
 }

napi/parser/index.d.ts

@@ -22,6 +22,8 @@ export interface EcmaScriptModule {
   staticImports: Array<StaticImport>
   /** Export Statements. */
   staticExports: Array<StaticExport>
+  /** Span positions` of `import.meta` */
+  importMetas: Array<Span>
 }
 
 export interface ExportExportName {
@@ -133,6 +135,11 @@ export declare function parseSync(filename: string, sourceText: string, options?
  */
 export declare function parseWithoutReturn(filename: string, sourceText: string, options?: ParserOptions | undefined | null): void
 
+export interface Span {
+  start: number
+  end: number
+}
+
 export interface StaticExport {
   start: number
   end: number

napi/parser/src/convert.rs

@@ -1,13 +1,10 @@
 use rustc_hash::FxHashMap;
 
-use oxc::{
-    span::Span,
-    syntax::module_record::{self, ModuleRecord},
-};
+use oxc::syntax::module_record::{self, ModuleRecord};
 
 use crate::types::{
     EcmaScriptModule, ExportExportName, ExportExportNameKind, ExportImportName,
-    ExportImportNameKind, ExportLocalName, ExportLocalNameKind, ImportName, ImportNameKind,
+    ExportImportNameKind, ExportLocalName, ExportLocalNameKind, ImportName, ImportNameKind, Span,
     StaticExport, StaticExportEntry, StaticImport, StaticImportEntry, ValueSpan,
 };
 
@@ -49,7 +46,7 @@ impl From<&ModuleRecord<'_>> for EcmaScriptModule {
             .map(|e| (e.statement_span, StaticExportEntry::from(e)))
             .collect::<Vec<_>>()
             .into_iter()
-            .fold(FxHashMap::<Span, Vec<StaticExportEntry>>::default(), |mut acc, (span, e)| {
+            .fold(FxHashMap::<_, Vec<StaticExportEntry>>::default(), |mut acc, (span, e)| {
                 acc.entry(span).or_default().push(e);
                 acc
             })
@@ -58,7 +55,20 @@ impl From<&ModuleRecord<'_>> for EcmaScriptModule {
             .collect::<Vec<_>>();
         static_exports.sort_unstable_by_key(|e| e.start);
 
-        Self { has_module_syntax: record.has_module_syntax, static_imports, static_exports }
+        let import_metas = record.import_metas.iter().map(Span::from).collect();
+
+        Self {
+            has_module_syntax: record.has_module_syntax,
+            static_imports,
+            static_exports,
+            import_metas,
+        }
+    }
+}
+
+impl From<&oxc::span::Span> for Span {
+    fn from(span: &oxc::span::Span) -> Self {
+        Self { start: span.start, end: span.end }
     }
 }
 

napi/parser/src/types.rs

@@ -50,6 +50,14 @@ pub struct EcmaScriptModule {
     pub static_imports: Vec<StaticImport>,
     /// Export Statements.
     pub static_exports: Vec<StaticExport>,
+    /// Span positions` of `import.meta`
+    pub import_metas: Vec<Span>,
+}
+
+#[napi(object)]
+pub struct Span {
+    pub start: u32,
+    pub end: u32,
 }
 
 #[napi(object)]

napi/parser/test/__snapshots__/esm.test.ts.snap

@@ -32,7 +32,8 @@ exports[`esm > export * as name1 from "module-name"; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -65,7 +66,8 @@ exports[`esm > export * from "module-name"; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -104,7 +106,8 @@ exports[`esm > export { default as name1 } from "module-name"; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -143,7 +146,8 @@ exports[`esm > export { default, /* …, */ } from "module-name"; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -230,7 +234,8 @@ exports[`esm > export { import1 as name1, import2 as name2, /* …, */ nameN } f
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -264,7 +269,8 @@ exports[`esm > export { name1 as default /*, … */ }; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -327,7 +333,8 @@ exports[`esm > export { name1, /* …, */ nameN } from "module-name"; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -380,7 +387,8 @@ exports[`esm > export { name1, /* …, */ nameN }; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -414,7 +422,8 @@ exports[`esm > export { variable1 as "string name" }; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -486,7 +495,8 @@ exports[`esm > export { variable1 as name1, variable2 as name2, /* …, */ nameN
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -520,7 +530,8 @@ exports[`esm > export class ClassName { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -573,7 +584,8 @@ exports[`esm > export const [ name1, name2 ] = array; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -626,7 +638,8 @@ exports[`esm > export const { name1, name2: bar } = o; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -679,7 +692,8 @@ exports[`esm > export const name1 = 1, name2 = 2/*, … */; // also var, let 1`]
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -709,7 +723,8 @@ exports[`esm > export default class { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -742,7 +757,8 @@ exports[`esm > export default class ClassName { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -775,7 +791,8 @@ exports[`esm > export default expression; 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -805,7 +822,8 @@ exports[`esm > export default function () { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -838,7 +856,8 @@ exports[`esm > export default function functionName() { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -868,7 +887,8 @@ exports[`esm > export default function* () { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -901,7 +921,8 @@ exports[`esm > export default function* generatorFunctionName() { /* … */ } 1`
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -935,7 +956,8 @@ exports[`esm > export function functionName() { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -969,7 +991,8 @@ exports[`esm > export function* generatorFunctionName() { /* … */ } 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -1022,7 +1045,8 @@ exports[`esm > export let name1, name2/*, … */; // also var 1`] = `
         }
       ]
     }
-  ]
+  ],
+  "importMetas": []
 }"
 `;
 
@@ -1041,7 +1065,8 @@ exports[`esm > import "module-name"; 1`] = `
       "entries": []
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1072,7 +1097,8 @@ exports[`esm > import * as name from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1106,7 +1132,8 @@ exports[`esm > import { "string name" as alias } from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1140,7 +1167,8 @@ exports[`esm > import { default as alias } from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1174,7 +1202,8 @@ exports[`esm > import { export1 } from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1208,7 +1237,8 @@ exports[`esm > import { export1 as alias1 } from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1256,7 +1286,8 @@ exports[`esm > import { export1, export2 } from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1304,7 +1335,8 @@ exports[`esm > import { export1, export2 as alias2, /* … */ } from "module-nam
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1337,7 +1369,8 @@ exports[`esm > import defaultExport from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1381,7 +1414,8 @@ exports[`esm > import defaultExport, * as name from "module-name"; 1`] = `
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;
 
@@ -1428,6 +1462,7 @@ exports[`esm > import defaultExport, { export1, /* … */ } from "module-name";
       ]
     }
   ],
-  "staticExports": []
+  "staticExports": [],
+  "importMetas": []
 }"
 `;

napi/parser/test/esm.test.ts

@@ -68,6 +68,7 @@ describe('hasModuleSyntax', () => {
   test('import.meta', () => {
     const ret = parseSync('test.js', 'import.meta.foo');
     expect(ret.module.hasModuleSyntax).toBe(true);
+    expect(ret.module.importMetas).toEqual([{ start: 0, end: 11 }]);
   });
 
   test('import expression', () => {