resizable-dataview-get-elem.js (1023B)
1 load(libdir + "dataview.js"); 2 3 const TypedArrays = [ 4 Int8Array, 5 Uint8Array, 6 Int16Array, 7 Uint16Array, 8 Int32Array, 9 Uint32Array, 10 Float16Array, 11 Float32Array, 12 Float64Array, 13 BigInt64Array, 14 BigUint64Array, 15 ]; 16 17 function test(TA) { 18 const length = 4; 19 const byteLength = length * TA.BYTES_PER_ELEMENT; 20 21 let rab = new ArrayBuffer(byteLength, {maxByteLength: byteLength}); 22 let actual = new TA(rab); 23 let expected = new TA(length); 24 let type = expected[0].constructor; 25 26 for (let i = 0; i < length; ++i) { 27 actual[i] = type(i * i); 28 expected[i] = type(i * i); 29 } 30 31 let dv = new DataView(rab); 32 for (let i = 0; i < 200; ++i) { 33 let index = i % length; 34 let byteIndex = index * TA.BYTES_PER_ELEMENT; 35 36 assertEq(dv.getElem(byteIndex, nativeIsLittleEndian), expected[index]); 37 } 38 } 39 40 for (let TA of TypedArrays) { 41 let getter = "get" + typeName(TA); 42 43 // Copy test function to ensure monomorphic ICs. 44 let copy = Function(`return ${test}`.replaceAll("getElem", getter))(); 45 46 copy(TA); 47 }