34 function deleteFromObjectSloppy(o) {  argument
35   return delete o.foo;
38 function deleteFromObjectKeyedSloppy(o) {  argument
39   return delete o["foo"];
42 function deleteFromObjectKeyedVarSloppy(o) {  argument
44   return delete o[a];
47 function deleteFromObjectKeyedComputedSloppy(o) {  argument
49   return delete o["fo" + a];
52 function deleteFromObjectWith(o) {  argument
53   with (o) {
58 function deleteFromObjectElementSloppy(o) {  argument
59   return delete o[0];
62 function deleteFromObjectElementVarSloppy(o) {  argument
64   return delete o[a];
67 function deleteFromObjectElementSparseSloppy(o) {  argument
68   return delete o[100000];
71 function deleteFromObjectElementVarSloppy(o) {
73   return delete o[a];
76 function deleteFromObjectElementSparseVarSloppy(o) {  argument
78   return delete o[a];
81 function deleteFromObjectStrict(o) {  argument
83   return delete o.foo;
86 function deleteFromObjectKeyedStrict(o) {  argument
88   return delete o["foo"];
91 function deleteFromObjectKeyedVarStrict(o) {  argument
94   return delete o[a];
97 function deleteFromObjectKeyedComputedStrict(o) {  argument
100   return delete o["fo" + a];
103 function deleteFromObjectElementStrict(o) {  argument
105   return delete o[0];
108 function deleteFromObjectElementSparseStrict(o) {  argument
110   return delete o[100000];
113 function deleteFromObjectElementVarStrict(o) {  argument
116   return delete o[a];
119 function deleteFromObjectElementSparseVarStrict(o) {  argument
122   return delete o[a];
190         for (let o of getWeakObjects()) {
191           Object.defineProperty(o, name, propDesc);
192           assertTrue(delete o["bar"]);
193           assertTrue(delete o[5000]);
194           assertTrue(deleteFunc(o));
195           assertFalse(o.hasOwnProperty(name));
197           Object.defineProperty(o, name, propDesc);
198           assertTrue(deleteFunc(o));
199           assertFalse(o.hasOwnProperty(name));
201           Object.defineProperty(o, name, propDesc);
202           assertTrue(deleteFunc(o));
203           assertFalse(o.hasOwnProperty(name));
205         for (let o of getStrongObjects()) {
206           Object.defineProperty(o, name, propDesc);
207           assertTrue(delete o["bar"]);
208           assertTrue(delete o[5000]);
209           assertFalse(deleteFunc(o));
210           assertTrue(o.hasOwnProperty(name));
212           assertFalse(deleteFunc(o));
213           assertTrue(o.hasOwnProperty(name));
215           assertFalse(deleteFunc(o));
216           assertTrue(o.hasOwnProperty(name));
223         for (let o of getWeakObjects()) {
224           Object.defineProperty(o, name, propDesc);
225           assertTrue(delete o["bar"]);
226           assertTrue(delete o[5000]);
227           assertTrue(deleteFunc(o));
228           assertFalse(o.hasOwnProperty(name));
230           Object.defineProperty(o, name, propDesc);
231           assertTrue(deleteFunc(o));
232           assertFalse(o.hasOwnProperty(name));
234           Object.defineProperty(o, name, propDesc);
235           assertTrue(deleteFunc(o));
236           assertFalse(o.hasOwnProperty(name));
238         for (let o of getStrongObjects()) {
239           Object.defineProperty(o, name, propDesc);
240           assertTrue(delete o["bar"]);
241           assertTrue(delete o[5000]);
242           assertThrows(function(){deleteFunc(o)}, TypeError);
243           assertTrue(o.hasOwnProperty(name));
245           assertThrows(function(){deleteFunc(o)}, TypeError);
246           assertTrue(o.hasOwnProperty(name));
248           assertThrows(function(){deleteFunc(o)}, TypeError);
249           assertTrue(o.hasOwnProperty(name));