comparison: lvm.js
lvm.js
- changeset 97
- 80cc68dd8222
- parent 96
- e4324d9a824c
- child 98
- 14d2400ec059
equal
deleted
inserted
replaced
| 96:e4324d9a824c | 97:80cc68dd8222 |
|---|---|
| 627 | 627 |
| 628 var fs=require("fs"); | 628 var fs=require("fs"); |
| 629 var sys=require("sys"); | 629 var sys=require("sys"); |
| 630 var c = new LBinaryChunk(testvm, fs.readFileSync("luac.out", "binary")); | 630 var c = new LBinaryChunk(testvm, fs.readFileSync("luac.out", "binary")); |
| 631 | 631 |
| 632 var default_environment = testvm.LValue({}); | 632 var _G = testvm.LValue({}); |
| 633 | 633 |
| 634 // Standard library | 634 // Standard library |
| 635 | 635 |
| 636 var baselib = { | 636 var baselib = { |
| 637 print: function () | 637 print: function () |
| 661 throw message; | 661 throw message; |
| 662 return [expr]; | 662 return [expr]; |
| 663 } | 663 } |
| 664 }; | 664 }; |
| 665 | 665 |
| 666 for(var name in baselib) | 666 var math = { |
| 667 { | 667 ldexp: function (m, e) |
| 668 default_environment.setIndex(testvm.LValue(name), testvm.LValue(baselib[name])); | 668 { |
| 669 } | 669 sys.puts("ldexp(): m: "+sys.inspect(m)+" e: "+sys.inspect(e)); |
| 670 return [this.LValue(m.value*Math.pow(2, e.value))]; | |
| 671 }, | |
| 672 floor: function (x) | |
| 673 { | |
| 674 return [this.LValue(Math.floor(x.value))]; | |
| 675 } | |
| 676 }; | |
| 677 | |
| 678 testvm.registerLib(_G, null, baselib); | |
| 679 testvm.registerLib(_G, "math", math); | |
| 670 | 680 |
| 671 // Metatable on environment to print out nil global accesses | 681 // Metatable on environment to print out nil global accesses |
| 672 var mt = testvm.LValue({}); | 682 var mt = testvm.LValue({}); |
| 673 mt.setIndex( | 683 mt.setIndex( |
| 674 testvm.LValue("__index"), | 684 testvm.LValue("__index"), |
| 675 testvm.LValue(function (t, k) { sys.puts("Access of nil global: "+k); }) | 685 testvm.LValue(function (t, k) { sys.puts("Access of nil global: "+k); }) |
| 676 ); | 686 ); |
| 677 default_environment.setMetatable(mt); | 687 _G.setMetatable(mt); |
| 678 | 688 |
| 679 | 689 |
| 680 var f = new LFunction(testvm, c, default_environment); | 690 var f = new LFunction(testvm, c, _G); |
| 681 | 691 |
| 682 var ret = testvm.call(f); | 692 var ret = testvm.call(f); |
| 683 if(ret) | 693 if(ret) |
| 684 sys.puts("Returned: "+sys.inspect(ret)); | 694 sys.puts("Returned: "+sys.inspect(ret)); |
| 685 } | 695 } |
