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|
// === Auto-generated preamble library stuff ===
function __globalConstructor__() {
}
UNDEFINED = null; // None in python; good for pypy
var HEAP = [];
var HEAPTOP = 0;
function abort(text) {
text = "ABORT: " + text;
print(text + "\n");
// print((new Error).stack); // for stack traces
print("\n");
throw text;
}
function Pointer_niceify(ptr) {
// XXX hardcoded ptr impl
return { slab: HEAP, pos: ptr };
// if (!ptr.slab)
// return { slab: ptr[0], pos: ptr[1] };
// else
// return ptr;
}
function Pointer_make(slab, pos) {
pos = pos ? pos : 0;
// XXX hardcoded ptr impl
if (slab === HEAP) return pos;
// Flatten out - needed for global consts/vars
function flatten(slab) {
if (!slab || slab.length === undefined || typeof slab === 'function') return [slab];
return slab.map(flatten).reduce(function(a,b) { return a.concat(b) }, []);
}
var slab = flatten(slab);
// Finalize
var ret = _malloc(Math.max(slab.length - pos, 1));
for (var i = 0; i < slab.length - pos; i++) {
HEAP[ret + i] = slab[pos + i];
}
return ret;
// return { slab: slab, pos: pos ? pos : 0 };
}
function Pointer_stringify(ptr) {
ptr = Pointer_niceify(ptr);
var ret = "";
var i = 0;
var t;
while (1) {
// if ((ptr.pos + i) >= ptr.slab.length) { return "<< Invalid read: " + (ptr.pos+i) + " : " + ptr.slab.length + " >>"; } else {}
if ((ptr.pos+i) >= ptr.slab.length) { break; } else {}
t = String.fromCharCode(ptr.slab[ptr.pos + i]);
if (t == "\0") { break; } else {}
ret = ret + t;
i = i + 1;
}
return ret;
}
NULL = Pointer_make([]);
function _malloc(size) {
// XXX hardcoded ptr impl
var ret = HEAPTOP;
HEAPTOP += size;
return ret;
// We don't actually do new Array(size) - memory is uninitialized anyhow
// return Pointer_make([]);
}
__Znwj = _malloc; // Mangled "new"
__Znaj = _malloc; // Mangled "new"
function _free(ptr) {
// XXX hardcoded ptr impl
// XXX TODO - actual implementation! Currently we leak it all
// Nothing needs to be done! But we mark the pointer
// as invalid. Note that we should do it for all other
// pointers of this slab too.
// ptr.slab = null;
// ptr[0] = null;
}
__ZdlPv = _free; // Mangled "delete"
__ZdaPv = _free; // Mangled "delete"
// stdio.h
function _printf() {
var text = Pointer_stringify(arguments[0]);
var textIndex;
for (var argIndex = 1; argIndex < arguments.length; argIndex = argIndex + 1) {
// We only support numbers - use puts for strings!
textIndex = Math.min(text.indexOf("%d"), text.indexOf("%f"));
if (textIndex < 0) {
textIndex = Math.max(text.indexOf("%d"), text.indexOf("%f"));
if (textIndex < 0) break;
}
text = text.substr(0, textIndex) + String(arguments[argIndex]) + text.substr(textIndex + 2);
}
print(text);
}
function _puts(p) {
_printf(p);
// print("\n"); // XXX print already always adds one
}
function _putchar(p) {
print(String.fromCharCode(p));
}
function _strlen(p) {
// XXX hardcoded ptr impl
var q = p;
while (HEAP[q] != 0) q++;
return q - p;
// p = Pointer_niceify(p);
// return p.slab.length; // XXX might want to find the null terminator...
}
// stdlib.h
// Get a pointer, return int value of the string it points to
function _atoi(s) {
return Math.floor(Number(Pointer_stringify(s)));
}
function _llvm_memcpy_i32(dest, src, num, idunno) {
// XXX hardcoded ptr impl
for (var i = 0; i < num; i++) {
HEAP[dest + i] = HEAP[src + i];
}
// dest = Pointer_niceify(dest);
// src = Pointer_niceify(src);
// dest.slab = src.slab.slice(src.pos);
}
// Tools
// println((new Error).stack); // for stack traces
function println(text) {
print(text);// + "\n"); // XXX print already always adds one
}
function jrint(label, obj) {
if (!obj) {
obj = label;
label = '';
} else
label = label + ' : ';
print(label + JSON.stringify(obj));
}
function intArrayFromString(stringy) {
var ret = [];
var t;
var i = 0;
while (i < stringy.length) {
ret.push(stringy.charCodeAt(i));
i = i + 1;
}
ret.push(0);
return ret;
}
// === Body ===
|
