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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/expressions/arrow-function/scope-paramsbody-var-open.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/expressions/arrow-function/scope-paramsbody-var-open.js')
-rw-r--r--js/src/tests/test262/language/expressions/arrow-function/scope-paramsbody-var-open.js34
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diff --git a/js/src/tests/test262/language/expressions/arrow-function/scope-paramsbody-var-open.js b/js/src/tests/test262/language/expressions/arrow-function/scope-paramsbody-var-open.js
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@@ -0,0 +1,34 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+ Creation of new variable environment for the function body (as distinct from
+ that for the function's parameters)
+info: |
+ [...]
+ 26. If hasParameterExpressions is false, then
+ [...]
+ 27. Else,
+ a. NOTE A separate Environment Record is needed to ensure that closures
+ created by expressions in the formal parameter list do not have
+ visibility of declarations in the function body.
+ b. Let varEnv be NewDeclarativeEnvironment(env).
+ c. Let varEnvRec be varEnv's EnvironmentRecord.
+ d. Set the VariableEnvironment of calleeContext to varEnv.
+ e. Let instantiatedVarNames be a new empty List.
+ [...]
+---*/
+
+var x = 'outside';
+var probeParams, probeBody;
+
+((_ = probeParams = function() { return x; }) => {
+ var x = 'inside';
+ probeBody = function() { return x; };
+})();
+
+assert.sameValue(probeParams(), 'outside');
+assert.sameValue(probeBody(), 'inside');
+
+reportCompare(0, 0);