Add more case

2026-06-11 02:15:10 -05:00 · 2020-04-01 11:37:58 +08:00
parent 1d93db81cc
commit da16b3e30b
31 changed files with 1626 additions and 10 deletions
--- a/src/compiler/transformers/esnext.ts
+++ b/src/compiler/transformers/esnext.ts
@@ -1,10 +1,6 @@
 /*@internal*/
 namespace ts {
    export function transformESNext(context: TransformationContext) {
-        const {
-            hoistVariableDeclaration
-        } = context;
-
        return chainBundle(transformSourceFile);

        function transformSourceFile(node: SourceFile) {
@@ -37,14 +33,9 @@ namespace ts {
                const nonAssignmentOperator = getNonAssignmentOperatorForCompoundAssignment(operator.kind);
                const left = visitNode(binaryExpression.left, visitor, isExpression);
                const right = visitNode(binaryExpression.right, visitor, isExpression);
-                let cond = left;
-                if (shouldCaptureInTempVariable(left)) {
-                    const temp = createTempVariable(hoistVariableDeclaration);
-                    cond = createAssignment(temp, left);
-                }

                return createBinary(
-                    cond,
+                    left,
                    nonAssignmentOperator,
                    createParen(
                        createAssignment(
--- a/tests/baselines/reference/logicalAssignment2(target=es2015).js
+++ b/tests/baselines/reference/logicalAssignment2(target=es2015).js
@@ -0,0 +1,42 @@
+//// [logicalAssignment2.ts]
+interface A {
+    foo: {
+        bar(): {
+            baz: 0 | 1 | 42 | undefined | ''
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A
+declare const a: A
+declare const b: A
+declare const c: A
+
+a.baz &&= result.baz
+b.baz ||= result.baz
+c.baz ??= result.baz
+
+a.foo["baz"] &&= result.foo.baz
+b.foo["baz"] &&= result.foo.baz
+c.foo["baz"] &&= result.foo.baz
+
+a.foo.bar().baz &&= result.foo.bar().baz
+b.foo.bar().baz ||= result.foo.bar().baz
+c.foo.bar().baz ??= result.foo.bar().baz
+
+
+
+//// [logicalAssignment2.js]
+"use strict";
+var _a, _b;
+a.baz && (a.baz = result.baz);
+b.baz || (b.baz = result.baz);
+(_a = c.baz) !== null && _a !== void 0 ? _a : (c.baz = result.baz);
+a.foo["baz"] && (a.foo["baz"] = result.foo.baz);
+b.foo["baz"] && (b.foo["baz"] = result.foo.baz);
+c.foo["baz"] && (c.foo["baz"] = result.foo.baz);
+a.foo.bar().baz && (a.foo.bar().baz = result.foo.bar().baz);
+b.foo.bar().baz || (b.foo.bar().baz = result.foo.bar().baz);
+(_b = c.foo.bar().baz) !== null && _b !== void 0 ? _b : (c.foo.bar().baz = result.foo.bar().baz);
--- a/tests/baselines/reference/logicalAssignment2(target=es2015).symbols
+++ b/tests/baselines/reference/logicalAssignment2(target=es2015).symbols
@@ -0,0 +1,142 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+    foo: {
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+
+        bar(): {
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+}
+
+declare const result: A
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const a: A
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const b: A
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const c: A
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+a.baz &&= result.baz
+>a.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+b.baz ||= result.baz
+>b.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+c.baz ??= result.baz
+>c.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>a.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>b.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>c.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+
--- a/tests/baselines/reference/logicalAssignment2(target=es2015).types
+++ b/tests/baselines/reference/logicalAssignment2(target=es2015).types
@@ -0,0 +1,154 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+    foo: {
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+
+        bar(): {
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A
+>result : A
+
+declare const a: A
+>a : A
+
+declare const b: A
+>b : A
+
+declare const c: A
+>c : A
+
+a.baz &&= result.baz
+>a.baz &&= result.baz : "" | 0 | 1 | 42 | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.baz ||= result.baz
+>b.baz ||= result.baz : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.baz ??= result.baz
+>c.baz ??= result.baz : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>a.foo["baz"] : string | number | undefined
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>b.foo["baz"] : string | number | undefined
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>c.foo["baz"] : string | number | undefined
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz &&= result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>a.foo.bar().baz : string | number | undefined
+>a.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz ||= result.foo.bar().baz : string | number | undefined
+>b.foo.bar().baz : string | number | undefined
+>b.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz ??= result.foo.bar().baz : string | number | undefined
+>c.foo.bar().baz : string | number | undefined
+>c.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment2(target=es2020).js
+++ b/tests/baselines/reference/logicalAssignment2(target=es2020).js
@@ -0,0 +1,41 @@
+//// [logicalAssignment2.ts]
+interface A {
+    foo: {
+        bar(): {
+            baz: 0 | 1 | 42 | undefined | ''
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A
+declare const a: A
+declare const b: A
+declare const c: A
+
+a.baz &&= result.baz
+b.baz ||= result.baz
+c.baz ??= result.baz
+
+a.foo["baz"] &&= result.foo.baz
+b.foo["baz"] &&= result.foo.baz
+c.foo["baz"] &&= result.foo.baz
+
+a.foo.bar().baz &&= result.foo.bar().baz
+b.foo.bar().baz ||= result.foo.bar().baz
+c.foo.bar().baz ??= result.foo.bar().baz
+
+
+
+//// [logicalAssignment2.js]
+"use strict";
+a.baz && (a.baz = result.baz);
+b.baz || (b.baz = result.baz);
+c.baz ?? (c.baz = result.baz);
+a.foo["baz"] && (a.foo["baz"] = result.foo.baz);
+b.foo["baz"] && (b.foo["baz"] = result.foo.baz);
+c.foo["baz"] && (c.foo["baz"] = result.foo.baz);
+a.foo.bar().baz && (a.foo.bar().baz = result.foo.bar().baz);
+b.foo.bar().baz || (b.foo.bar().baz = result.foo.bar().baz);
+c.foo.bar().baz ?? (c.foo.bar().baz = result.foo.bar().baz);
--- a/tests/baselines/reference/logicalAssignment2(target=es2020).symbols
+++ b/tests/baselines/reference/logicalAssignment2(target=es2020).symbols
@@ -0,0 +1,142 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+    foo: {
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+
+        bar(): {
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+}
+
+declare const result: A
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const a: A
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const b: A
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const c: A
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+a.baz &&= result.baz
+>a.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+b.baz ||= result.baz
+>b.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+c.baz ??= result.baz
+>c.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>a.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>b.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>c.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+
--- a/tests/baselines/reference/logicalAssignment2(target=es2020).types
+++ b/tests/baselines/reference/logicalAssignment2(target=es2020).types
@@ -0,0 +1,154 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+    foo: {
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+
+        bar(): {
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A
+>result : A
+
+declare const a: A
+>a : A
+
+declare const b: A
+>b : A
+
+declare const c: A
+>c : A
+
+a.baz &&= result.baz
+>a.baz &&= result.baz : "" | 0 | 1 | 42 | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.baz ||= result.baz
+>b.baz ||= result.baz : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.baz ??= result.baz
+>c.baz ??= result.baz : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>a.foo["baz"] : string | number | undefined
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>b.foo["baz"] : string | number | undefined
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>c.foo["baz"] : string | number | undefined
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz &&= result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>a.foo.bar().baz : string | number | undefined
+>a.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz ||= result.foo.bar().baz : string | number | undefined
+>b.foo.bar().baz : string | number | undefined
+>b.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz ??= result.foo.bar().baz : string | number | undefined
+>c.foo.bar().baz : string | number | undefined
+>c.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment2(target=esnext).js
+++ b/tests/baselines/reference/logicalAssignment2(target=esnext).js
@@ -0,0 +1,41 @@
+//// [logicalAssignment2.ts]
+interface A {
+    foo: {
+        bar(): {
+            baz: 0 | 1 | 42 | undefined | ''
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A
+declare const a: A
+declare const b: A
+declare const c: A
+
+a.baz &&= result.baz
+b.baz ||= result.baz
+c.baz ??= result.baz
+
+a.foo["baz"] &&= result.foo.baz
+b.foo["baz"] &&= result.foo.baz
+c.foo["baz"] &&= result.foo.baz
+
+a.foo.bar().baz &&= result.foo.bar().baz
+b.foo.bar().baz ||= result.foo.bar().baz
+c.foo.bar().baz ??= result.foo.bar().baz
+
+
+
+//// [logicalAssignment2.js]
+"use strict";
+a.baz &&= result.baz;
+b.baz ||= result.baz;
+c.baz ??= result.baz;
+a.foo["baz"] &&= result.foo.baz;
+b.foo["baz"] &&= result.foo.baz;
+c.foo["baz"] &&= result.foo.baz;
+a.foo.bar().baz &&= result.foo.bar().baz;
+b.foo.bar().baz ||= result.foo.bar().baz;
+c.foo.bar().baz ??= result.foo.bar().baz;
--- a/tests/baselines/reference/logicalAssignment2(target=esnext).symbols
+++ b/tests/baselines/reference/logicalAssignment2(target=esnext).symbols
@@ -0,0 +1,142 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+    foo: {
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+
+        bar(): {
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+}
+
+declare const result: A
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const a: A
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const b: A
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+declare const c: A
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>A : Symbol(A, Decl(logicalAssignment2.ts, 0, 0))
+
+a.baz &&= result.baz
+>a.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+b.baz ||= result.baz
+>b.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+c.baz ??= result.baz
+>c.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment2.ts, 6, 5))
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>"baz" : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo.baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 4, 9))
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>a.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>a.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment2.ts, 11, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>b.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>b.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment2.ts, 12, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>c.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>c.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment2.ts, 13, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar().baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+>result.foo.bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>result.foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment2.ts, 10, 13))
+>foo : Symbol(A.foo, Decl(logicalAssignment2.ts, 0, 13))
+>bar : Symbol(bar, Decl(logicalAssignment2.ts, 1, 10))
+>baz : Symbol(baz, Decl(logicalAssignment2.ts, 2, 16))
+
+
--- a/tests/baselines/reference/logicalAssignment2(target=esnext).types
+++ b/tests/baselines/reference/logicalAssignment2(target=esnext).types
@@ -0,0 +1,154 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts ===
+interface A {
+    foo: {
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+
+        bar(): {
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+
+            baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A
+>result : A
+
+declare const a: A
+>a : A
+
+declare const b: A
+>b : A
+
+declare const c: A
+>c : A
+
+a.baz &&= result.baz
+>a.baz &&= result.baz : "" | 0 | 1 | 42 | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.baz ||= result.baz
+>b.baz ||= result.baz : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.baz ??= result.baz
+>c.baz ??= result.baz : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo["baz"] &&= result.foo.baz
+>a.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>a.foo["baz"] : string | number | undefined
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo["baz"] &&= result.foo.baz
+>b.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>b.foo["baz"] : string | number | undefined
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo["baz"] &&= result.foo.baz
+>c.foo["baz"] &&= result.foo.baz : "" | 0 | 1 | 42 | undefined
+>c.foo["baz"] : string | number | undefined
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>"baz" : "baz"
+>result.foo.baz : "" | 0 | 1 | 42 | undefined
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+a.foo.bar().baz &&= result.foo.bar().baz
+>a.foo.bar().baz &&= result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>a.foo.bar().baz : string | number | undefined
+>a.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>a.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>a : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+b.foo.bar().baz ||= result.foo.bar().baz
+>b.foo.bar().baz ||= result.foo.bar().baz : string | number | undefined
+>b.foo.bar().baz : string | number | undefined
+>b.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>b.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>b : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+c.foo.bar().baz ??= result.foo.bar().baz
+>c.foo.bar().baz ??= result.foo.bar().baz : string | number | undefined
+>c.foo.bar().baz : string | number | undefined
+>c.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>c.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>c : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : string | number | undefined
+>result.foo.bar().baz : "" | 0 | 1 | 42 | undefined
+>result.foo.bar() : { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo.bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>result.foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>result : A
+>foo : { bar(): { baz: "" | 0 | 1 | 42 | undefined; }; baz: "" | 0 | 1 | 42 | undefined; }
+>bar : () => { baz: "" | 0 | 1 | 42 | undefined; }
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=es2015).js
+++ b/tests/baselines/reference/logicalAssignment3(target=es2015).js
@@ -0,0 +1,22 @@
+//// [logicalAssignment3.ts]
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A;
+declare const a: A;
+declare const b: A;
+declare const c: A;
+
+(a.baz) &&= result.baz;
+(b.baz) ||= result.baz;
+(c.baz) ??= result.baz;
+
+
+
+//// [logicalAssignment3.js]
+"use strict";
+var _a;
+(a.baz) && ((a.baz) = result.baz);
+(b.baz) || ((b.baz) = result.baz);
+(_a = (c.baz)) !== null && _a !== void 0 ? _a : ((c.baz) = result.baz);
--- a/tests/baselines/reference/logicalAssignment3(target=es2015).symbols
+++ b/tests/baselines/reference/logicalAssignment3(target=es2015).symbols
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+}
+
+declare const result: A;
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const a: A;
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const b: A;
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const c: A;
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+(a.baz) &&= result.baz;
+>a.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(b.baz) ||= result.baz;
+>b.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(c.baz) ??= result.baz;
+>c.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=es2015).types
+++ b/tests/baselines/reference/logicalAssignment3(target=es2015).types
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A;
+>result : A
+
+declare const a: A;
+>a : A
+
+declare const b: A;
+>b : A
+
+declare const c: A;
+>c : A
+
+(a.baz) &&= result.baz;
+>(a.baz) &&= result.baz : "" | 0 | 1 | 42 | undefined
+>(a.baz) : string | number | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(b.baz) ||= result.baz;
+>(b.baz) ||= result.baz : string | number | undefined
+>(b.baz) : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(c.baz) ??= result.baz;
+>(c.baz) ??= result.baz : string | number | undefined
+>(c.baz) : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=es2020).js
+++ b/tests/baselines/reference/logicalAssignment3(target=es2020).js
@@ -0,0 +1,21 @@
+//// [logicalAssignment3.ts]
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A;
+declare const a: A;
+declare const b: A;
+declare const c: A;
+
+(a.baz) &&= result.baz;
+(b.baz) ||= result.baz;
+(c.baz) ??= result.baz;
+
+
+
+//// [logicalAssignment3.js]
+"use strict";
+(a.baz) && ((a.baz) = result.baz);
+(b.baz) || ((b.baz) = result.baz);
+(c.baz) ?? ((c.baz) = result.baz);
--- a/tests/baselines/reference/logicalAssignment3(target=es2020).symbols
+++ b/tests/baselines/reference/logicalAssignment3(target=es2020).symbols
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+}
+
+declare const result: A;
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const a: A;
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const b: A;
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const c: A;
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+(a.baz) &&= result.baz;
+>a.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(b.baz) ||= result.baz;
+>b.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(c.baz) ??= result.baz;
+>c.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=es2020).types
+++ b/tests/baselines/reference/logicalAssignment3(target=es2020).types
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A;
+>result : A
+
+declare const a: A;
+>a : A
+
+declare const b: A;
+>b : A
+
+declare const c: A;
+>c : A
+
+(a.baz) &&= result.baz;
+>(a.baz) &&= result.baz : "" | 0 | 1 | 42 | undefined
+>(a.baz) : string | number | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(b.baz) ||= result.baz;
+>(b.baz) ||= result.baz : string | number | undefined
+>(b.baz) : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(c.baz) ??= result.baz;
+>(c.baz) ??= result.baz : string | number | undefined
+>(c.baz) : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=esnext).js
+++ b/tests/baselines/reference/logicalAssignment3(target=esnext).js
@@ -0,0 +1,21 @@
+//// [logicalAssignment3.ts]
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A;
+declare const a: A;
+declare const b: A;
+declare const c: A;
+
+(a.baz) &&= result.baz;
+(b.baz) ||= result.baz;
+(c.baz) ??= result.baz;
+
+
+
+//// [logicalAssignment3.js]
+"use strict";
+(a.baz) &&= result.baz;
+(b.baz) ||= result.baz;
+(c.baz) ??= result.baz;
--- a/tests/baselines/reference/logicalAssignment3(target=esnext).symbols
+++ b/tests/baselines/reference/logicalAssignment3(target=esnext).symbols
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+}
+
+declare const result: A;
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const a: A;
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const b: A;
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+declare const c: A;
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>A : Symbol(A, Decl(logicalAssignment3.ts, 0, 0))
+
+(a.baz) &&= result.baz;
+>a.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>a : Symbol(a, Decl(logicalAssignment3.ts, 5, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(b.baz) ||= result.baz;
+>b.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>b : Symbol(b, Decl(logicalAssignment3.ts, 6, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+(c.baz) ??= result.baz;
+>c.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>c : Symbol(c, Decl(logicalAssignment3.ts, 7, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result.baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+>result : Symbol(result, Decl(logicalAssignment3.ts, 4, 13))
+>baz : Symbol(A.baz, Decl(logicalAssignment3.ts, 0, 13))
+
+
--- a/tests/baselines/reference/logicalAssignment3(target=esnext).types
+++ b/tests/baselines/reference/logicalAssignment3(target=esnext).types
@@ -0,0 +1,49 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts ===
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+>baz : "" | 0 | 1 | 42 | undefined
+}
+
+declare const result: A;
+>result : A
+
+declare const a: A;
+>a : A
+
+declare const b: A;
+>b : A
+
+declare const c: A;
+>c : A
+
+(a.baz) &&= result.baz;
+>(a.baz) &&= result.baz : "" | 0 | 1 | 42 | undefined
+>(a.baz) : string | number | undefined
+>a.baz : string | number | undefined
+>a : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(b.baz) ||= result.baz;
+>(b.baz) ||= result.baz : string | number | undefined
+>(b.baz) : string | number | undefined
+>b.baz : string | number | undefined
+>b : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+(c.baz) ??= result.baz;
+>(c.baz) ??= result.baz : string | number | undefined
+>(c.baz) : string | number | undefined
+>c.baz : string | number | undefined
+>c : A
+>baz : string | number | undefined
+>result.baz : "" | 0 | 1 | 42 | undefined
+>result : A
+>baz : "" | 0 | 1 | 42 | undefined
+
+
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).js
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).js
@@ -0,0 +1,17 @@
+//// [logicalAssignment4.ts]
+function foo1(results: number[] | undefined) {
+    (results ||= []).push(100);
+}
+
+function foo2(results: number[] | undefined) {
+    (results ??= []).push(100);
+}
+
+//// [logicalAssignment4.js]
+"use strict";
+function foo1(results) {
+    (results || (results = [])).push(100);
+}
+function foo2(results) {
+    (results !== null && results !== void 0 ? results : (results = [])).push(100);
+}
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).symbols
@@ -0,0 +1,20 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : Symbol(foo1, Decl(logicalAssignment4.ts, 0, 0))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+
+    (results ||= []).push(100);
+>(results ||= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : Symbol(foo2, Decl(logicalAssignment4.ts, 2, 1))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+
+    (results ??= []).push(100);
+>(results ??= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
--- a/tests/baselines/reference/logicalAssignment4(target=es2015).types
+++ b/tests/baselines/reference/logicalAssignment4(target=es2015).types
@@ -0,0 +1,30 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ||= []).push(100);
+>(results ||= []).push(100) : number
+>(results ||= []).push : (...items: number[]) => number
+>(results ||= []) : number[]
+>results ||= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ??= []).push(100);
+>(results ??= []).push(100) : number
+>(results ??= []).push : (...items: number[]) => number
+>(results ??= []) : number[]
+>results ??= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).js
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).js
@@ -0,0 +1,17 @@
+//// [logicalAssignment4.ts]
+function foo1(results: number[] | undefined) {
+    (results ||= []).push(100);
+}
+
+function foo2(results: number[] | undefined) {
+    (results ??= []).push(100);
+}
+
+//// [logicalAssignment4.js]
+"use strict";
+function foo1(results) {
+    (results || (results = [])).push(100);
+}
+function foo2(results) {
+    (results ?? (results = [])).push(100);
+}
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).symbols
@@ -0,0 +1,20 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : Symbol(foo1, Decl(logicalAssignment4.ts, 0, 0))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+
+    (results ||= []).push(100);
+>(results ||= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : Symbol(foo2, Decl(logicalAssignment4.ts, 2, 1))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+
+    (results ??= []).push(100);
+>(results ??= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
--- a/tests/baselines/reference/logicalAssignment4(target=es2020).types
+++ b/tests/baselines/reference/logicalAssignment4(target=es2020).types
@@ -0,0 +1,30 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ||= []).push(100);
+>(results ||= []).push(100) : number
+>(results ||= []).push : (...items: number[]) => number
+>(results ||= []) : number[]
+>results ||= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ??= []).push(100);
+>(results ??= []).push(100) : number
+>(results ??= []).push : (...items: number[]) => number
+>(results ??= []) : number[]
+>results ??= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).js
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).js
@@ -0,0 +1,17 @@
+//// [logicalAssignment4.ts]
+function foo1(results: number[] | undefined) {
+    (results ||= []).push(100);
+}
+
+function foo2(results: number[] | undefined) {
+    (results ??= []).push(100);
+}
+
+//// [logicalAssignment4.js]
+"use strict";
+function foo1(results) {
+    (results ||= []).push(100);
+}
+function foo2(results) {
+    (results ??= []).push(100);
+}
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).symbols
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).symbols
@@ -0,0 +1,20 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : Symbol(foo1, Decl(logicalAssignment4.ts, 0, 0))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+
+    (results ||= []).push(100);
+>(results ||= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 0, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : Symbol(foo2, Decl(logicalAssignment4.ts, 2, 1))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+
+    (results ??= []).push(100);
+>(results ??= []).push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+>results : Symbol(results, Decl(logicalAssignment4.ts, 4, 14))
+>push : Symbol(Array.push, Decl(lib.es5.d.ts, --, --))
+}
--- a/tests/baselines/reference/logicalAssignment4(target=esnext).types
+++ b/tests/baselines/reference/logicalAssignment4(target=esnext).types
@@ -0,0 +1,30 @@
+=== tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts ===
+function foo1(results: number[] | undefined) {
+>foo1 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ||= []).push(100);
+>(results ||= []).push(100) : number
+>(results ||= []).push : (...items: number[]) => number
+>(results ||= []) : number[]
+>results ||= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
+
+function foo2(results: number[] | undefined) {
+>foo2 : (results: number[] | undefined) => void
+>results : number[] | undefined
+
+    (results ??= []).push(100);
+>(results ??= []).push(100) : number
+>(results ??= []).push : (...items: number[]) => number
+>(results ??= []) : number[]
+>results ??= [] : number[]
+>results : number[] | undefined
+>[] : never[]
+>push : (...items: number[]) => number
+>100 : 100
+}
--- a/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts
+++ b/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment2.ts
@@ -0,0 +1,29 @@
+// @strict: true
+// @target: esnext, es2020, es2015
+interface A {
+    foo: {
+        bar(): {
+            baz: 0 | 1 | 42 | undefined | ''
+        }
+        baz: 0 | 1 | 42 | undefined | ''
+    }
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A
+declare const a: A
+declare const b: A
+declare const c: A
+
+a.baz &&= result.baz
+b.baz ||= result.baz
+c.baz ??= result.baz
+
+a.foo["baz"] &&= result.foo.baz
+b.foo["baz"] &&= result.foo.baz
+c.foo["baz"] &&= result.foo.baz
+
+a.foo.bar().baz &&= result.foo.bar().baz
+b.foo.bar().baz ||= result.foo.bar().baz
+c.foo.bar().baz ??= result.foo.bar().baz
+
--- a/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts
+++ b/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment3.ts
@@ -0,0 +1,15 @@
+// @strict: true
+// @target: esnext, es2020, es2015
+interface A {
+    baz: 0 | 1 | 42 | undefined | ''
+}
+
+declare const result: A;
+declare const a: A;
+declare const b: A;
+declare const c: A;
+
+(a.baz) &&= result.baz;
+(b.baz) ||= result.baz;
+(c.baz) ??= result.baz;
+
--- a/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts
+++ b/tests/cases/conformance/esnext/logicalAssignment/logicalAssignment4.ts
@@ -0,0 +1,10 @@
+// @strict: true
+// @target: esnext, es2020, es2015
+
+function foo1(results: number[] | undefined) {
+    (results ||= []).push(100);
+}
+
+function foo2(results: number[] | undefined) {
+    (results ??= []).push(100);
+}