fix(semantic): bind TSImportEqualsDeclarations (#4100)

Closes #4091

crates/oxc_linter/src/rules/react/jsx_no_undef.rs

@@ -112,6 +112,16 @@ fn test() {
         ),
         ("var App; var React; enum A { App };  React.render(<App />);", None),
         ("var React; enum A { App }; var App; React.render(<App />);", None),
+        ("var React; import App = require('./app'); React.render(<App />);", None),
+        (
+            "
+        var React;
+        import { Foo } from './foo';
+        import App = Foo.App;
+        React.render(<App />);
+        ",
+            None,
+        ),
     ];
 
     let fail = vec![

crates/oxc_semantic/src/binder.rs

@@ -294,6 +294,12 @@ impl<'a> Binder for ImportNamespaceSpecifier<'a> {
     }
 }
 
+impl<'a> Binder for TSImportEqualsDeclaration<'a> {
+    fn bind(&self, builder: &mut SemanticBuilder) {
+        declare_symbol_for_import_specifier(&self.id, builder);
+    }
+}
+
 impl<'a> Binder for TSTypeAliasDeclaration<'a> {
     fn bind(&self, builder: &mut SemanticBuilder) {
         let symbol_id = builder.declare_symbol(

crates/oxc_semantic/src/builder.rs

@@ -1672,6 +1672,9 @@ impl<'a> SemanticBuilder<'a> {
             AstKind::ImportNamespaceSpecifier(specifier) => {
                 specifier.bind(self);
             }
+            AstKind::TSImportEqualsDeclaration(decl) => {
+                decl.bind(self);
+            }
             AstKind::VariableDeclarator(decl) => {
                 decl.bind(self);
                 self.make_all_namespaces_valuelike();

crates/oxc_semantic/tests/integration/modules.rs

@@ -202,3 +202,16 @@ fn test_export_in_invalid_scope() {
     assert!(!errors.is_empty(), "expected an export within a function to produce a check error, but no errors were produced");
     assert!(semantic.module_record().exported_bindings.is_empty());
 }
+
+#[test]
+fn test_import_assignment() {
+    SemanticTester::ts("import Foo = require('./foo')")
+        .has_root_symbol("Foo")
+        .contains_flags(SymbolFlags::ImportBinding)
+        .test();
+
+    SemanticTester::ts("import { Foo } from './foo'; import Baz = Foo.Bar.Baz")
+        .has_root_symbol("Baz")
+        .contains_flags(SymbolFlags::ImportBinding)
+        .test();
+}

tasks/coverage/parser_typescript.snap

@@ -3,7 +3,7 @@ commit: d8086f14
 parser_typescript Summary:
 AST Parsed     : 5279/5283 (99.92%)
 Positive Passed: 5272/5283 (99.79%)
-Negative Passed: 1082/4875 (22.19%)
+Negative Passed: 1085/4875 (22.26%)
 Expect Syntax Error: "compiler/ClassDeclaration10.ts"
 Expect Syntax Error: "compiler/ClassDeclaration11.ts"
 Expect Syntax Error: "compiler/ClassDeclaration13.ts"
@@ -874,7 +874,6 @@ Expect Syntax Error: "compiler/implicitAnyWidenToAny.ts"
 Expect Syntax Error: "compiler/implicitConstParameters.ts"
 Expect Syntax Error: "compiler/importAnImport.ts"
 Expect Syntax Error: "compiler/importAndVariableDeclarationConflict1.ts"
-Expect Syntax Error: "compiler/importAndVariableDeclarationConflict3.ts"
 Expect Syntax Error: "compiler/importAndVariableDeclarationConflict4.ts"
 Expect Syntax Error: "compiler/importDeclRefereingExternalModuleWithNoResolve.ts"
 Expect Syntax Error: "compiler/importDeclWithClassModifiers.ts"
@@ -1186,8 +1185,6 @@ Expect Syntax Error: "compiler/moduleImport.ts"
 Expect Syntax Error: "compiler/moduleNewExportBug.ts"
 Expect Syntax Error: "compiler/moduleNoneErrors.ts"
 Expect Syntax Error: "compiler/moduleProperty2.ts"
-Expect Syntax Error: "compiler/moduleSharesNameWithImportDeclarationInsideIt3.ts"
-Expect Syntax Error: "compiler/moduleSharesNameWithImportDeclarationInsideIt5.ts"
 Expect Syntax Error: "compiler/moduleVariableArrayIndexer.ts"
 Expect Syntax Error: "compiler/moduleVisibilityTest2.ts"
 Expect Syntax Error: "compiler/moduleVisibilityTest3.ts"
@@ -6866,6 +6863,17 @@ Expect to Parse: "conformance/salsa/plainJSRedeclare3.ts"
  17 │             }
     ╰────
 
+  × Identifier `x` has already been declared
+   ╭─[compiler/importAndVariableDeclarationConflict3.ts:5:8]
+ 4 │ 
+ 5 │ import x = m.m;
+   ·        ┬
+   ·        ╰── `x` has already been declared here
+ 6 │ import x = m.m;
+   ·        ┬
+   ·        ╰── It can not be redeclared here
+   ╰────
+
   × Unexpected token
    ╭─[compiler/importAssertionNonstring.ts:1:52]
  1 │ import * as thing1 from "./mod.mjs" assert {field: 0};
@@ -7962,6 +7970,30 @@ Expect to Parse: "conformance/salsa/plainJSRedeclare3.ts"
     ╰────
   help: Try insert a semicolon here
 
+  × Identifier `M` has already been declared
+    ╭─[compiler/moduleSharesNameWithImportDeclarationInsideIt3.ts:10:12]
+  9 │ module A.M {
+ 10 │     import M = Z.M;
+    ·            ┬
+    ·            ╰── `M` has already been declared here
+ 11 │     import M = Z.I;
+    ·            ┬
+    ·            ╰── It can not be redeclared here
+ 12 │ 
+    ╰────
+
+  × Identifier `M` has already been declared
+    ╭─[compiler/moduleSharesNameWithImportDeclarationInsideIt5.ts:10:12]
+  9 │ module A.M {
+ 10 │     import M = Z.I;
+    ·            ┬
+    ·            ╰── `M` has already been declared here
+ 11 │     import M = Z.M;
+    ·            ┬
+    ·            ╰── It can not be redeclared here
+ 12 │ 
+    ╰────
+
   × TS1108: A 'return' statement can only be used within a function body
    ╭─[compiler/multiLinePropertyAccessAndArrowFunctionIndent1.ts:1:1]
  1 │ return this.edit(role)