apply-native-spreadcall-arguments.js (786B)
1 load(libdir + "array-compare.js"); 2 3 const xs = [ 4 // Zero arguments. 5 [], 6 7 // Single argument. 8 [1], 9 10 // Few arguments. Even number of arguments. 11 [1, 2], 12 13 // Few arguments. Odd number of arguments. 14 [1, 2, 3], 15 16 // Many arguments. Even number of arguments. 17 [1, 2, 3, 4, 5, 6, 7, 8, 9, 0], 18 19 // Many arguments. Odd number of arguments. 20 [1, 2, 3, 4, 5, 6, 7, 8, 9], 21 ]; 22 23 function f() { 24 // SpreadCall to a native function with frame arguments. 25 return Array(...arguments); 26 } 27 28 // Don't inline |f| into the top-level script. 29 with ({}) ; 30 31 for (let i = 0; i < 400; ++i) { 32 let x = xs[i % xs.length]; 33 34 // NB: Array(1) creates the array `[,]`. 35 let expected = x.length !== 1 ? x : [,]; 36 37 let result = f.apply(null, x); 38 assertEq(arraysEqual(result, expected), true); 39 }