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-rw-r--r--js/src/tests/js1_8_5/reflect-parse/destructuring-variable-declarations.js58
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/js1_8_5/reflect-parse/destructuring-variable-declarations.js b/js/src/tests/js1_8_5/reflect-parse/destructuring-variable-declarations.js
new file mode 100644
index 000000000..4df8682cb
--- /dev/null
+++ b/js/src/tests/js1_8_5/reflect-parse/destructuring-variable-declarations.js
@@ -0,0 +1,58 @@
+// |reftest| skip-if(!xulRuntime.shell)
+function test() {
+
+function testVarPatternCombinations(makePattSrc, makePattPatt) {
+ var pattSrcs = makePatternCombinations(n => ("x" + n), makePattSrc);
+ var pattPatts = makePatternCombinations(n => ({ id: ident("x" + n), init: null }), makePattPatt);
+ // It's illegal to have uninitialized const declarations, so we need a
+ // separate set of patterns and sources.
+ var constSrcs = makePatternCombinations(n => ("x" + n + " = undefined"), makePattSrc);
+ var constPatts = makePatternCombinations(n => ({ id: ident("x" + n), init: ident("undefined") }), makePattPatt);
+
+ for (var i = 0; i < pattSrcs.length; i++) {
+ // variable declarations in blocks
+ assertDecl("var " + pattSrcs[i].join(",") + ";", varDecl(pattPatts[i]));
+
+ assertGlobalDecl("let " + pattSrcs[i].join(",") + ";", letDecl(pattPatts[i]));
+ assertLocalDecl("let " + pattSrcs[i].join(",") + ";", letDecl(pattPatts[i]));
+ assertBlockDecl("let " + pattSrcs[i].join(",") + ";", letDecl(pattPatts[i]));
+
+ assertDecl("const " + constSrcs[i].join(",") + ";", constDecl(constPatts[i]));
+
+ // variable declarations in for-loop heads
+ assertStmt("for (var " + pattSrcs[i].join(",") + "; foo; bar);",
+ forStmt(varDecl(pattPatts[i]), ident("foo"), ident("bar"), emptyStmt));
+ assertStmt("for (let " + pattSrcs[i].join(",") + "; foo; bar);",
+ forStmt(letDecl(pattPatts[i]), ident("foo"), ident("bar"), emptyStmt));
+ assertStmt("for (const " + constSrcs[i].join(",") + "; foo; bar);",
+ forStmt(constDecl(constPatts[i]), ident("foo"), ident("bar"), emptyStmt));
+ }
+}
+
+testVarPatternCombinations(n => ("{a" + n + ":x" + n + "," + "b" + n + ":y" + n + "," + "c" + n + ":z" + n + "} = 0"),
+ n => ({ id: objPatt([assignProp("a" + n, ident("x" + n)),
+ assignProp("b" + n, ident("y" + n)),
+ assignProp("c" + n, ident("z" + n))]),
+ init: lit(0) }));
+
+testVarPatternCombinations(n => ("{a" + n + ":x" + n + " = 10," + "b" + n + ":y" + n + " = 10," + "c" + n + ":z" + n + " = 10} = 0"),
+ n => ({ id: objPatt([assignProp("a" + n, ident("x" + n), lit(10)),
+ assignProp("b" + n, ident("y" + n), lit(10)),
+ assignProp("c" + n, ident("z" + n), lit(10))]),
+ init: lit(0) }));
+
+testVarPatternCombinations(n => ("[x" + n + "," + "y" + n + "," + "z" + n + "] = 0"),
+ n => ({ id: arrPatt([assignElem("x" + n), assignElem("y" + n), assignElem("z" + n)]),
+ init: lit(0) }));
+
+testVarPatternCombinations(n => ("[a" + n + ", ..." + "b" + n + "] = 0"),
+ n => ({ id: arrPatt([assignElem("a" + n), spread(ident("b" + n))]),
+ init: lit(0) }));
+
+testVarPatternCombinations(n => ("[a" + n + ", " + "b" + n + " = 10] = 0"),
+ n => ({ id: arrPatt([assignElem("a" + n), assignElem("b" + n, lit(10))]),
+ init: lit(0) }));
+
+}
+
+runtest(test);