summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js')
-rw-r--r--js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js67
1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js b/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js
new file mode 100644
index 0000000000..8fa4a1b125
--- /dev/null
+++ b/js/src/tests/test262/language/statements/switch/cptn-a-fall-thru-abrupt-empty.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 13.12.11
+description: >
+ Completion value when execution continues through multiple cases and ends
+ with an empty abrupt completion
+info: |
+ SwitchStatement : switch ( Expression ) CaseBlock
+
+ [...]
+ 8. Let R be the result of performing CaseBlockEvaluation of CaseBlock with
+ argument switchValue.
+ 9. Set the running execution context’s LexicalEnvironment to oldEnv.
+ 10. Return R.
+
+ 13.12.9 Runtime Semantics: CaseBlockEvaluation
+
+ CaseBlock : { CaseClausesopt DefaultClause CaseClausesopt }
+
+ 1. Let V = undefined.
+ 2. Let A be the list of CaseClause items in the first CaseClauses, in
+ source text order. If the first CaseClauses is not present A is « ».
+ 3. Let found be false.
+ 4. Repeat for each CaseClause C in A
+ a. If found is false, then
+ [...]
+ b. If found is true, then
+ i. Let R be the result of evaluating C.
+ ii. If R.[[value]] is not empty, let V = R.[[value]].
+ iii. If R is an abrupt completion, return Completion(UpdateEmpty(R,
+ V)).
+---*/
+
+assert.sameValue(
+ eval('1; switch ("a") { case "a": 2; case "b": 3; break; default: }'),
+ 3,
+ 'Non-empty value replaces previous non-empty value'
+);
+assert.sameValue(
+ eval('4; switch ("a") { case "a": case "b": 5; break; default: }'),
+ 5,
+ 'Non-empty value replaces empty value'
+);
+assert.sameValue(
+ eval('6; switch ("a") { case "a": 7; case "b": break; default: }'),
+ 7,
+ 'Empty value does not replace previous non-empty value'
+);
+
+assert.sameValue(
+ eval('8; do { switch ("a") { case "a": 9; case "b": 10; continue; default: } } while (false)'),
+ 10,
+ 'Non-empty value replaces previous non-empty value'
+);
+assert.sameValue(
+ eval('11; do { switch ("a") { case "a": case "b": 12; continue; default: } } while (false)'),
+ 12,
+ 'Non-empty value replaces empty value'
+);
+assert.sameValue(
+ eval('13; do { switch ("a") { case "a": 14; case "b": continue; default: } } while (false)'),
+ 14,
+ 'Empty value does not replace previous non-empty value'
+);
+
+reportCompare(0, 0);