public static Stmt ctor(Ctx ctx) {
Expression<Func<int>> eHashCode = () => hashCode;
var field = (FieldInfo)((MemberExpression)eHashCode.Body).Member;
var f = ctx.Module.Import(field);
var fExpr = new ExprFieldAccess(ctx, null, f).Named("hashCode");
var stmt = new StmtJsExplicit(ctx, "this.$=++hashCode;", ctx.ThisNamed, fExpr);
return stmt;
}
protected virtual ICode VisitJsExplicit(StmtJsExplicit s) {
this.ThrowOnNoOverride();
var namedExprs = this.HandleList(s.NamedExprs, x => {
if (x == null) {
return null;
}
var expr = (Expr)this.Visit(x.Expr);
return expr == x.Expr ? x : expr.Named(x.Name);
});
if (namedExprs != null) {
return new StmtJsExplicit(s.Ctx, s.JavaScript, namedExprs);
} else {
return s;
}
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0).Named("a");
var b = ctx.MethodParameter(1).Named("b");
var hi = ctx.Local(ctx.UInt64, "hi");
var lo = ctx.Local(ctx.UInt64, "lo");
var limit = ctx.Literal(0x100000000UL, ctx._UInt64, "limit");
var js = @"
hi = a[0] + b[0];
lo = a[1] + b[1];
if (lo >= limit) {
lo -= limit;
hi++;
}
if (hi >= limit) hi -= limit;
return [hi, lo];
";
var stmt = new StmtJsExplicit(ctx, js, a, b, hi, lo, limit);
return stmt;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var hi = ctx.Local(ctx.UInt64, "hi");
var lo = ctx.Local(ctx.UInt64, "lo");
var limit = ctx.Literal(0x100000000UL, ctx._UInt64, "limit");
var js = @"
hi = a[0] - b[0];
lo = a[1] - b[1];
if (lo < 0) {
lo += limit;
hi--;
}
if (hi < 0) hi += limit;
return [hi, lo];
";
var stmt = new StmtJsExplicit(ctx, js, a, b, hi, lo, limit);
return stmt;
}
protected virtual ICode VisitJsExplicit(StmtJsExplicit s)
{
this.ThrowOnNoOverride();
var namedExprs = this.HandleList(s.NamedExprs, x => {
if (x == null)
{
return(null);
}
var expr = (Expr)this.Visit(x.Expr);
return(expr == x.Expr ? x : expr.Named(x.Name));
});
if (namedExprs != null)
{
return(new StmtJsExplicit(s.Ctx, s.JavaScript, namedExprs));
}
else
{
return(s);
}
}
public static Stmt Encode(Ctx ctx) {
var arg = ctx.MethodParameter(0, "arg");
var id = ctx.Local(ctx.Int32, "id");
var todo = ctx.Local(ctx.Object, "todo");
var todoOfs = ctx.Local(ctx.Int32, "todoOfs");
var enc = ctx.Local(ctx.Object, "enc");
var obj = ctx.Local(ctx.Object, "obj");
var json = ctx.Local(ctx.Object, "json");
var jsonPart = ctx.Local(ctx.Object, "jsonPart");
var o = ctx.Local(ctx.Object, "o");
var type = ctx.Local(ctx.Type, "type");
var oKey = ctx.Local(ctx.String, "oKey");
var isRoot = ctx.Local(ctx.Boolean, "isRoot");
var i = ctx.Local(ctx.Int32, "i");
var isArray = new ExprJsTypeData(ctx, TypeData.IsArray).Named("isArray");
var jsName = new ExprJsTypeData(ctx, TypeData.JsName).Named("jsName");
var jsIsDict = new ExprJsTypeData(ctx, TypeData.IsDictionary).Named("jsIsDict");
var slots = ctx.Local(ctx.Object, "slots");
var ret = ctx.Local(ctx.Object, "ret");
// Value-types will be boxed on entry
var js = @"
try {
id = 0;
if (arg && arg._) {
arg.$$ = '0';
}
todo = [arg];
todoOfs = 0;
enc = function(o, isRoot) {
if (o === null || o === undefined) {
return null;
}
var type = o._;
if (!type) { // Unboxed value-type/primitive
if (typeof(o) !== 'object' || o instanceof Array) { // primitive number, boolean, string, 64-bit number (array)
if (typeof(o) === 'number') { // Number
if (isNaN(o)) {
return [0];
}
if (o === Number.NEGATIVE_INFINITY) {
return [-1];
}
if (o === Number.POSITIVE_INFINITY) {
return [1];
}
}
return o;
} else {
// Non-primitive value-type
var ret = {};
for (var oKey in o) {
ret[oKey] = enc(o[oKey]);
}
return ret;
}
}
if (isRoot) {
// Direct object encoding required
if (type.jsIsDict) {
var ret = { '_': type.jsName, 'v': [] };
var slots = o[type.jsIsDict[0]];
for (var i=0; i<slots.length; i++) {
if (slots[i] && slots[i][type.jsIsDict[1]] >= 0) {
ret.v.push(enc(slots[i][type.jsIsDict[2]]), enc(slots[i][type.jsIsDict[3]]));
}
}
return ret;
}
if (type && type.isArray) {
var ret = { '_': type.jsName, 'v': [] };
for (var i=0; i<o.length; i++) {
ret.v.push(enc(o[i]));
}
return ret;
} else {
var ret = { '_': type.jsName };
for (var oKey in o) {
if (oKey.charAt(0) !== '_' && oKey.charAt(0) !== '$') {
ret[oKey] = enc(o[oKey]);
}
}
return ret;
}
} else {
if (!o.$$) {
o.$$ = (++id).toString();
todo.push(o);
}
return [o.$$];
}
};
json = [];
while (todo.length > todoOfs) {
obj = todo[todoOfs++];
jsonPart = enc(obj, true);
json.push([(obj && obj.$$) || '0', jsonPart]);
}
for (i = 0; i<todo.length; i++) {
if (todo[i] && todo[i].$$) {
delete todo[i].$$;
}
}
return json;
} catch (eeee) {
console.log('Ex: ' + eeee);
throw eeee;
}
";
var stmt = new StmtJsExplicit(ctx, js, arg, id, todo, todoOfs, enc, obj, json, jsonPart, o, type, oKey, isRoot, i, isArray, ret, jsName, jsIsDict, slots);
return stmt;
}
protected override ICode VisitJsExplicit(StmtJsExplicit s) {
this.NewLine();
this.HandleExplicitJs(s.JavaScript, s.NamedExprs);
return s;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var aa = ctx.Local(ctx.Int32.MakeArray(), "aa");
var bb = ctx.Local(ctx.Int32.MakeArray(), "bb");
var ia = ctx.Local(ctx.Int32, "ia");
var ib = ctx.Local(ctx.Int32, "ib");
var mul = ctx.Local(ctx.Int32, "mul");
var add = ctx.Local(ctx.Int32, "add");
var mulCarry = ctx.Local(ctx.Int32, "mulCarry");
var addCarry = ctx.Local(ctx.Int32, "addCarry");
var rrOfs = ctx.Local(ctx.Int32, "rrOfs");
var rr = ctx.Local(ctx.Int32.MakeArray(), "rr");
var mask = ctx.Literal(0xffff, ctx.Int32, "mask");
var limit = ctx.Literal(0x10000, ctx.Int32, "limit");
var js = @"
aa = [a[0] >>> 16, a[0] & mask, a[1] >>> 16, a[1] & mask];
bb = [b[0] >>> 16, b[0] & mask, b[1] >>> 16, b[1] & mask];
rr = [0, 0, 0, 0];
for (ib = 3; ib >= 0; ib--) {
mulCarry = 0;
addCarry = 0;
for(ia = 3; ia >= 3 - ib; ia--) {
rrOfs = ia + ib - 3;
mul = aa[ia] * bb[ib] + mulCarry;
mulCarry = mul >>> 16;
add = rr[rrOfs] + (mul & mask) + addCarry;
if (add >= limit){
rr[rrOfs] = add - limit;
addCarry = 1;
} else {
rr[rrOfs] = add;
addCarry = 0;
}
}
}
return [rr[1] + rr[0] * limit, rr[3] + rr[2] * limit];
";
var stmt = new StmtJsExplicit(ctx, js, a, b, aa, bb, rr, mask, limit, ia, ib, mul, add, mulCarry, addCarry, rrOfs);
return stmt;
}
public static Stmt Decode(Ctx ctx) {
var arg = ctx.MethodParameter(0, "arg");
var objs = ctx.Local(ctx.Object, "objs");
var refs = ctx.Local(ctx.Object, "refs");
var needDefer = ctx.Local(ctx.Object, "needDefer");
var defer = ctx.Local(ctx.Object, "defer");
var dec = ctx.Local(ctx.Object, "dec");
var type = ctx.Local(ctx.Type, "type");
var ret = ctx.Local(ctx.Object, "ret");
var o = ctx.Local(ctx.Object, "o");
var oArray = ctx.Local(ctx.Object, "oArray");
var i = ctx.Local(ctx.Int32, "i");
var isObject = ctx.Local(ctx.Boolean, "isObject");
var kVal = ctx.Local(ctx.Object, "kVal");
var vVal = ctx.Local(ctx.Object, "vVal");
var kRef = ctx.Local(ctx.Boolean, "kRef");
var vRef = ctx.Local(ctx.Boolean, "vRef");
var js = @"
objs = {};
refs = [];
needDefer = function(o) {
return !!(o && o instanceof Array && o.length === 1 && typeof(o[0]) === 'string');
};
defer = function(ret, i, o) {
if (needDefer(o[i])) {
refs.push(function() {
ret[i] = objs[o[i][0]];
});
} else {
ret[i] = dec(o[i]);
}
};
dec = function(o) {
var ret, i;
if (o == null) {
return null;
}
var isObject = false;
if (o._ !== undefined) {
if (o.__ === 2) { // Dictionary
ret = $d[o.d][0]({ _: $$[o._] });
for (var i = 0; i < o.a.length; i++) {
var kVal = o.a[i];
var vVal = o.b[i];
var kRef = needDefer(kVal);
var vRef = needDefer(vVal);
(function(kRef, kVal, vRef, vVal, o, ret) {
refs.push(function() {
if (kRef) kVal = objs[kVal[0]];
if (vRef) vVal = objs[vVal[0]];
$d[o.d][1](ret, kVal, vVal);
});
})(kRef, kVal, vRef, vVal, o, ret);
}
} else if (o['']) { // Array
var oArray = o[''];
var ret = new Array(oArray.length);
ret._ = $$[o._];
// TODO: Set $
for (var i = 0; i < oArray.length; i++) {
defer(ret, i, oArray)
}
} else { // Object or boxed struct
isObject = true;
}
} else if (typeof(o) === 'object' && !(o instanceof Array)) { // unboxed value-type
isObject = true;
} else if (o instanceof Array && o.length === 1) { // Special Single/Double
switch (o[0]) {
case 0: ret = NaN; break;
case 1: ret = Number.POSITIVE_INFINITY; break;
case -1: ret = Number.NEGATIVE_INFINITY; break;
default: throw 'Unrecognised special: ' + o[0];
}
} else { // unboxed primitive or null
ret = o;
}
if (isObject) {
var ret = o._ ? { '_': $$[o._] } : { };
// TODO: Set $ = hash id
for (var i in o) {
if (i !== '_') {
defer(ret, i, o);
}
}
}
return ret;
};
for (i = 0; i < arg.length; i++) {
objs[arg[i][0]] = dec(arg[i][1]);
}
for (i = 0; i < refs.length; i++) {
refs[i]();
}
ret = objs['0'];
return ret;
";
var stmt = new StmtJsExplicit(ctx, js, arg, objs, refs, needDefer, defer, dec, type, ret, o, oArray, i, isObject, kVal, vVal, kRef, vRef);
return stmt;
}
public static Stmt Equals(Ctx ctx) {
var other = ctx.MethodParameter(0).Named("other");
var stmt = new StmtJsExplicit(ctx, "return this===other;", ctx.ThisNamed, other);
return stmt;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0);
var b = ctx.MethodParameter(1);
var divMod = new ExprCall(ctx, (Func<UInt64, UInt64, object>)_Int64UInt64.UInt64DivRem, null, a, b).Named("divMod");
var js = "return divMod[1];";
var stmt = new StmtJsExplicit(ctx, js, divMod);
return stmt;
}
public static JsResult CreateFrom(IEnumerable <MethodReference> rootMethods, bool verbose = false, bool testing = false)
{
var todo = new Queue <MethodReference>();
foreach (var method in rootMethods)
{
todo.Enqueue(method);
}
Action <MethodReference> addTodo = m => {
if (m.ContainsGenericParameters())
{
throw new Exception("Cannot add todo method with generic parameters");
}
todo.Enqueue(m);
};
// Each method, with the count of how often it is referenced.
var methodsSeen = new Dictionary <MethodReference, int>(rootMethods.ToDictionary(x => x, x => 1), TypeExtensions.MethodRefEqComparerInstance);
// Each type, with the count of how often it is referenced directly (newobj only at the moment).
var typesSeen = new Dictionary <TypeReference, int>(TypeExtensions.TypeRefEqComparerInstance);
// ASTs of all methods
var methodAsts = new Dictionary <MethodReference, ICode>(TypeExtensions.MethodRefEqComparerInstance);
// Each field, with the count of how often it is referenced.
var fieldAccesses = new Dictionary <FieldReference, int>(TypeExtensions.FieldReqEqComparerInstance);
// Each type records which virtual methods have their NewSlot definitions
var virtualCalls = new Dictionary <TypeReference, HashSet <MethodReference> >(TypeExtensions.TypeRefEqComparerInstance);
// Each basemost virtual method records the least-derived type actually called
// This allows only virtual methods in more-derived types to be transcoded
var virtualCallExactMethods = new Dictionary <MethodReference, IEnumerable <TypeReference> >(TypeExtensions.MethodRefEqComparerInstance);
// Each interface type records which interface methods are called
var interfaceCalls = new Dictionary <TypeReference, HashSet <MethodReference> >(TypeExtensions.TypeRefEqComparerInstance);
// All instance constructors must be updated after all methods have been processed, to initialise all referenced
// instance fields in the type, and to sort out 'return' statements.
// This has to be done later, so the list of referenced fields in complete
var instanceConstructors = new List <Ctx>();
while (todo.Any())
{
// TODO: parallelise
var mRef = todo.Dequeue();
var mDef = mRef.Resolve();
var tRef = mRef.DeclaringType;
var tDef = tRef.Resolve();
var ctx = new Ctx(tRef, mRef);
var ast = (ICode)JsResolver.ResolveMethod(ctx);
if (ast == null)
{
var transcodeCtx = JsResolver.TranslateCtx(ctx) ?? ctx;
if (transcodeCtx.MRef.ContainsGenericParameters())
{
throw new InvalidOperationException("Method/type must not have generic parameters");
}
if (transcodeCtx.MDef.IsAbstract)
{
throw new InvalidOperationException("Cannot transcode an abstract method");
}
if (transcodeCtx.MDef.IsInternalCall)
{
throw new InvalidOperationException("Cannot transcode an internal call");
}
if (transcodeCtx.MDef.IsExternal())
{
throw new InvalidOperationException("Cannot transcode an external method");
}
if (!transcodeCtx.MDef.HasBody)
{
throw new InvalidOperationException("Cannot transcode method without body");
}
if (!typesSeen.ContainsKey(tRef))
{
typesSeen.Add(tRef, 0);
}
ast = Transcoder.ToAst(transcodeCtx, verbose);
}
for (int i = 0; ; i++)
{
var astOrg = ast;
ast = Transcoder.DoStep(s => (Stmt)VisitorJsRewriteSealedVCalls.V(s), (Stmt)ast, "VisitorJsRewriteSealedVCalls", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveAll.V(s), (Stmt)ast, "VisitorJsResolveAll", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveConv.V(s), (Stmt)ast, "VisitorJsResolveConv", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveSpecialTypes.V(s), (Stmt)ast, "VisitorJsResolveSpecialTypes", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveDelegates.V(s), (Stmt)ast, "VisitorJsResolveDelegates", verbose);
// 64bit must be after everything else
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolve64Bit.V(s), (Stmt)ast, "VisitorJsResolve64Bit", verbose);
if (ast == astOrg)
{
break;
}
if (i > 10)
{
// After 10 iterations even the most complex method should be sorted out
throw new InvalidOperationException("Error: Stuck in loop trying to resolve AST");
}
}
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveValueTypes.V(s), (Stmt)ast, "VisitorJsResolveValueTypes", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorIfSimplification.V(s), (Stmt)ast, "VisitorIfSimplification", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveByRefParameters.V(s), (Stmt)ast, "VisitorJsResolveByRefParameters", verbose);
if (mDef.IsVirtual && mRef.DeclaringType.IsValueType)
{
// 'this' may be boxed or unboxed. Must be unboxed if boxed
// This is required because in real .NET the boxed and unboxed versions are both directly
// available at the this reference; this is not the case in the JS emulation of boxing
var unbox = new StmtJsExplicit(ctx, "if (this._) this = this.v;", ctx.ThisNamed);
ast = new StmtBlock(ctx, unbox, (Stmt)ast);
Transcoder.Print((Stmt)ast, "Unbox-this", verbose);
}
if (mDef.IsConstructor && !mDef.IsStatic)
{
// Instance constructor; add instance field initialisation and final return of 'this' later
instanceConstructors.Add(ctx);
}
var cctors = VisitorFindStaticConstructors.V(ast)
.Where(x => !TypeExtensions.MethodRefEqComparerInstance.Equals(x, mRef))
.Distinct(TypeExtensions.MethodRefEqComparerInstance)
.ToArray();
if (cctors.Any())
{
// All methods that access static fields or methods must call the static constructor at the very
// start of the method. Except the static construtor itself, which must not recurse into itself.
var cctorCalls = cctors
.Select(x => new StmtWrapExpr(ctx, new ExprCall(ctx, x, null, Enumerable.Empty <Expr>(), false))).ToArray();
ast = new StmtBlock(ctx, cctorCalls.Concat((Stmt)ast));
Transcoder.Print((Stmt)ast, "Call-cctors", verbose);
}
if (mDef.IsConstructor && mDef.IsStatic)
{
// At the beginning of the static constructor, it rewrites itself as an empty function, so it is only called once.
var rewrite = new StmtAssignment(ctx, new ExprJsVarMethodReference(ctx, mRef), new ExprJsEmptyFunction(ctx));
ast = new StmtBlock(ctx, rewrite, (Stmt)ast);
Transcoder.Print((Stmt)ast, "cctor-once-only", verbose);
}
methodAsts.Add(mRef, ast);
var fieldRefs = VisitorFindFieldAccesses.V(ast);
foreach (var fieldRef in fieldRefs)
{
fieldAccesses[fieldRef] = fieldAccesses.ValueOrDefault(fieldRef) + 1;
}
var arrayRefs = VisitorFindNewArrays.V(ast);
foreach (var arrayRef in arrayRefs)
{
typesSeen[arrayRef] = typesSeen.ValueOrDefault(arrayRef) + 1;
}
var types = VisitorFindRequiredTypes.V(ast);
foreach (var type in types)
{
typesSeen[type] = typesSeen.ValueOrDefault(type) + 1;
}
if (mDef.GetCustomAttribute <JsReturnTypeDeepUseAttribute>(true) != null)
{
var retType = mDef.ReturnType.FullResolve(ctx);
var retTypes = retType.EnumThisAllContainedTypes().ToArray();
foreach (var type in retTypes)
{
typesSeen[type] = typesSeen.ValueOrDefault(type) + 1;
if (type.IsGenericInstance && type.Resolve().FullName == "System.Collections.Generic.Dictionary`2")
{
// HACK - ensure no-arg ctor is present. JSON needs it
var ctor = type.EnumResolvedMethods().First(x => x.Name == ".ctor" && !x.HasParameters);
if (!methodsSeen.ContainsKey(ctor))
{
methodsSeen.Add(ctor, 1);
addTodo(ctor);
}
// HACK - ensure Add(key, value) method present. JSON need sit
var mAdd = type.EnumResolvedMethods().First(x => x.Name == "Add");
if (!methodsSeen.ContainsKey(mAdd))
{
methodsSeen.Add(mAdd, 1);
addTodo(mAdd);
}
}
}
}
var calledMethods = new List <ICall>();
var calls = VisitorFindCalls.V(ast);
foreach (var call in calls.Where(x => x.ExprType == Expr.NodeType.NewObj || x.IsVirtualCall))
{
// Add reference to each type constructed (direct access to type variable)
typesSeen[call.Type] = typesSeen.ValueOrDefault(call.Type) + 1;
}
foreach (var call in calls)
{
if (call.CallMethod.DeclaringType.Resolve().IsInterface)
{
var methodSet = interfaceCalls.ValueOrDefault(call.CallMethod.DeclaringType, () => new HashSet <MethodReference>(TypeExtensions.MethodRefEqComparerInstance), true);
methodSet.Add(call.CallMethod);
// Methods that require transcoding are added to 'todo' later
continue;
}
if (call.IsVirtualCall)
{
var mBasemost = call.CallMethod.GetBasemostMethod(null);
var methodSet = virtualCalls.ValueOrDefault(mBasemost.DeclaringType, () => new HashSet <MethodReference>(TypeExtensions.MethodRefEqComparerInstance), true);
methodSet.Add(mBasemost);
var objType = call.Obj.Type;
var already = virtualCallExactMethods.ValueOrDefault(mBasemost).EmptyIfNull();
if (!already.Any(x => x.IsBaseOfOrEqual(objType)))
{
virtualCallExactMethods[mBasemost] = already.Concat(objType).ToArray();
}
// Methods that require transcoding are added to 'todo' later
continue;
}
calledMethods.Add(call);
}
foreach (var call in calledMethods)
{
if (methodsSeen.ContainsKey(call.CallMethod))
{
methodsSeen[call.CallMethod]++;
}
else
{
methodsSeen.Add(call.CallMethod, 1);
//todo.Enqueue(call.CallMethod);
addTodo(call.CallMethod);
}
}
if (!todo.Any())
{
// Add System.RuntimeType if any types have been seen
if (typesSeen.Any(x => x.Value > 0) && !typesSeen.Any(x => x.Key.FullName == "System.RuntimeType"))
{
var runtimeType = ctx.Module.Import(Type.GetType("System.RuntimeType"));
typesSeen.Add(runtimeType, 1);
}
// Scan all virtual calls and add any required methods
// Need care to handle virtual methods with generic arguments
var virtualRoots = new HashSet <MethodReference>(virtualCalls.SelectMany(x => x.Value), TypeExtensions.MethodRefEqComparerInstance);
var requireMethods =
from type in typesSeen.Keys
//let typeReverseMapped = JsResolver.ReverseTypeMap(type)
let typeAndBases = type.EnumThisAllBaseTypes().ToArray()
let mVRoots = typeAndBases.SelectMany(x => virtualCalls.ValueOrDefault(x).EmptyIfNull()).ToArray()
let methods = type.EnumResolvedMethods(mVRoots).ToArray()
from method in methods //.Select(x => JsResolver.ResolveMethod(x))
let methodDef = method.Resolve()
where methodDef != null // HACK?
where !methodDef.IsStatic && methodDef.IsVirtual && !methodDef.IsAbstract
where !methodsSeen.ContainsKey(method)
let mBasemost = method.GetBasemostMethod(method)
where virtualCallExactMethods.ValueOrDefault(mBasemost).EmptyIfNull().Any(x => {
//return x.IsBaseOfOrEqual(typeReverseMapped) || typeReverseMapped.IsBaseOfOrEqual(x);
return(x.IsBaseOfOrEqual(type) || type.IsBaseOfOrEqual(x));
})
where virtualRoots.Contains(mBasemost)
select method;
var requireMethodsArray = requireMethods.Distinct(TypeExtensions.MethodRefEqComparerInstance).ToArray();
foreach (var method in requireMethodsArray)
{
methodsSeen.Add(method, 1); // TODO: How to properly handle count?
//todo.Enqueue(method);
addTodo(method);
}
// Scan all interface calls and add any required methods
var iFaceMethods =
from type in typesSeen.Keys
from iFace in interfaceCalls
let iFaceType = iFace.Key
let typeAndBases = type.EnumThisAllBaseTypes().ToArray()
where typeAndBases.Any(x => x.DoesImplement(iFaceType))
let methods = typeAndBases.SelectMany(x => x.EnumResolvedMethods(iFace.Value)).ToArray()
from method in methods//.Select(x => JsResolver.ResolveMethod(x))
where !methodsSeen.ContainsKey(method)
let methodDef = method.Resolve()
where methodDef != null // HACK?
where !methodDef.IsStatic && methodDef.IsVirtual && !methodDef.IsAbstract
from iFaceMethod in iFace.Value
where method.IsImplementationOf(iFaceMethod)
select method;
var iFaceMethodsArray = iFaceMethods.Distinct(TypeExtensions.MethodRefEqComparerInstance).ToArray();
foreach (var method in iFaceMethodsArray)
{
methodsSeen.Add(method, 1);
addTodo(method);
//todo.Enqueue(method);
}
}
}
// Add type count to System.RuntimeType
var runtimeTypeInc = typesSeen.Keys.FirstOrDefault(x => x.FullName == "System.RuntimeType");
if (runtimeTypeInc != null)
{
typesSeen[runtimeTypeInc] += 2;
}
var instanceFieldsByType = fieldAccesses
.Where(x => !x.Key.Resolve().IsStatic)
.ToLookup(x => x.Key.DeclaringType.FullResolve(x.Key), TypeExtensions.TypeRefEqComparerInstance);
// Update all instance constructors to initialise instance fields, add final 'return' statement,
// and update any early returns to return 'this'
foreach (var ctx in instanceConstructors)
{
var fields = instanceFieldsByType[ctx.TRef].Select(x => x.Key);
var initStmts = fields.Select(x => {
var f = x.FullResolve(ctx.TRef, ctx.MRef);
var assign = new StmtAssignment(ctx,
new ExprFieldAccess(ctx, ctx.This, f),
new ExprDefaultValue(ctx, f.FieldType));
return(assign);
}).ToArray();
var returnStmt = new StmtReturn(ctx, ctx.This);
var ast = methodAsts[ctx.MRef];
ast = new StmtBlock(ctx, initStmts.Concat((Stmt)ast).Concat(returnStmt));
ast = VisitorJsReturnThis.V(ast, ctx.This);
methodAsts[ctx.MRef] = ast;
}
// Locally name all instance fields; base type names must not be re-used in derived types
var instanceFieldsIndexed = new Dictionary <int, Tuple <IEnumerable <FieldReference>, int> >(); // <index, Tuple<all fields, total use count>>
instanceFieldsByType.TypeTreeTraverse(x => x.Key, (fields, idx) => {
var ordered = fields.OrderByDescending(x => x.Value).ToArray(); // Order by usage count, highest first
foreach (var field in ordered)
{
var idxInfo = instanceFieldsIndexed.ValueOrDefault(idx, () => Tuple.Create(Enumerable.Empty <FieldReference>(), 0));
var newIdxInfo = Tuple.Create((IEnumerable <FieldReference>)idxInfo.Item1.Concat(field.Key).ToArray(), idxInfo.Item2 + field.Value);
instanceFieldsIndexed[idx] = newIdxInfo;
idx++;
}
return(idx);
}, 0);
var orderedInstanceFields = instanceFieldsIndexed.OrderByDescending(x => x.Value.Item2).ToArray();
var instanceFieldNameGen = new NameGenerator();
var instanceFieldNames = orderedInstanceFields
.Select(x => new { name = instanceFieldNameGen.GetNewName(), fields = x.Value.Item1 })
.SelectMany(x => x.fields.Select(y => new { f = y, name = x.name }))
.ToArray();
// Prepare list of static fields for global naming
var staticFields = fieldAccesses.Where(x => x.Key.Resolve().IsStatic).ToArray();
// Prepare local variables for global naming.
// All locals in all methods are sorted by usage count, then all methods usage counts are combined
var clusters = methodAsts.Values.SelectMany(x => VisitorJsPhiClusters.V(x).Select(y => new ExprVarCluster(y))).ToArray();
var varToCluster = clusters.SelectMany(x => x.Vars.Select(y => new { cluster = x, var = y })).ToDictionary(x => x.var, x => x.cluster);
var varsWithCount = methodAsts.Values.Select(x => {
var methodVars = VisitorFindVars.V(x);
// Parameters need one extra count, as they appear in the method declaration
methodVars = methodVars.Concat(methodVars.Where(y => y.ExprType == Expr.NodeType.VarParameter).Distinct());
var ret = methodVars.Select(y => varToCluster.ValueOrDefault(y) ?? y)
.GroupBy(y => y)
.Select(y => new { var = y.Key, count = y.Count() })
.OrderByDescending(y => y.count)
.ToArray();
return(ret);
}).ToArray();
var localVarCounts = new Dictionary <int, int>();
foreach (var x in varsWithCount)
{
for (int i = 0; i < x.Length; i++)
{
localVarCounts[i] = localVarCounts.ValueOrDefault(i) + x[i].count;
}
}
// Globally name all items that require names
var needNaming =
localVarCounts.Select(x => new { item = (object)x.Key, count = x.Value })
.Concat(methodsSeen.Select(x => new { item = (object)x.Key, count = x.Value }))
.Concat(staticFields.Select(x => new { item = (object)x.Key, count = x.Value }))
.Concat(typesSeen.Select(x => new { item = (object)x.Key, count = x.Value }))
.Where(x => x.count > 0)
.OrderByDescending(x => x.count)
.ToArray();
var nameGen = new NameGenerator();
var globalNames = needNaming.ToDictionary(x => x.item, x => nameGen.GetNewName());
// Create map of all local variables to their names
var localVarNames = varsWithCount.Select(x => x.Select((y, i) => new { y.var, name = globalNames[i] }))
.SelectMany(x => x)
.SelectMany(x => {
var varCluster = x.var as ExprVarCluster;
if (varCluster != null)
{
return(varCluster.Vars.Select(y => new { var = y, name = x.name }));
}
else
{
return(new[] { x });
}
})
.ToDictionary(x => x.var, x => x.name);
// Create map of all method names
var methodNames = methodsSeen.Keys.ToDictionary(x => x, x => globalNames[x], TypeExtensions.MethodRefEqComparerInstance);
// Create list of all static field names
var staticFieldNames = staticFields.Select(x => new { f = x.Key, name = globalNames[x.Key] });
// Create map of all fields
if (testing)
{
instanceFieldNames = instanceFieldNames.Select(x => {
switch (x.f.FullName)
{
case "System.String System.Exception::_message":
return(new { x.f, name = "$$_message" });
}
return(x);
}).ToArray();
}
var fieldNames = instanceFieldNames.Concat(staticFieldNames).ToDictionary(x => x.f, x => x.name, TypeExtensions.FieldReqEqComparerInstance);
// Create map of type names
var typeNames = typesSeen
.Where(x => x.Value > 0)
.ToDictionary(x => x.Key, x => globalNames[x.Key], TypeExtensions.TypeRefEqComparerInstance);
// Create virtual call tables
var virtualCallIndices = new Dictionary <MethodReference, int>(TypeExtensions.MethodRefEqComparerInstance);
var allVirtualMethods = new Dictionary <TypeReference, HashSet <MethodReference> >(TypeExtensions.TypeRefEqComparerInstance);
typesSeen.Select(x => x.Key).TypeTreeTraverse(x => x, (type, vCalls) => {
var mNewSlots = virtualCalls.ValueOrDefault(type).EmptyIfNull().ToArray();
int idx = vCalls.Length;
foreach (var mNewSlot in mNewSlots)
{
virtualCallIndices[mNewSlot] = idx++;
}
var vCallsWithThisType = vCalls.Concat(mNewSlots).ToArray();
if (vCallsWithThisType.Length > 0)
{
var typesAndBases = type.EnumThisAllBaseTypes().ToArray();
var mVRoots = typesAndBases.SelectMany(x => virtualCalls.ValueOrDefault(x).EmptyIfNull()).ToArray();
var ms = type.EnumResolvedMethods(mVRoots).ToArray();
for (int i = 0; i < vCalls.Length; i++)
{
var mVCall = vCallsWithThisType[i];
foreach (var m in ms)
{
if (m.MatchMethodOnly(mVCall))
{
vCallsWithThisType[i] = m;
}
}
}
var typeVMethods = new HashSet <MethodReference>(vCallsWithThisType, TypeExtensions.MethodRefEqComparerInstance);
allVirtualMethods.Add(type, typeVMethods);
}
return(vCallsWithThisType);
}, new MethodReference[0]);
var typeData = Enum.GetValues(typeof(TypeData)).Cast <TypeData>().ToArray();
// Name all items that are within the type information
var needTypeInformationNaming =
interfaceCalls.Select(x => new { item = (object)x.Key, count = 1 })
.Concat(typeData.Select(x => new { item = (object)x, count = 1 }))
.OrderByDescending(x => x.count)
.ToArray();
var typeInformationNameGen = new NameGenerator();
var typeInformationNames = needTypeInformationNaming.ToDictionary(x => x.item, x => typeInformationNameGen.GetNewName());
if (testing)
{
typeInformationNames[TypeData.Name] = "$$TypeName";
typeInformationNames[TypeData.Namespace] = "$$TypeNamespace";
}
// Create map of interfaces to their names
var interfaceNames = interfaceCalls.Keys.ToDictionary(x => x, x => typeInformationNames[x], TypeExtensions.TypeRefEqComparerInstance);
var interfaceCallIndices = interfaceCalls.SelectMany(x => x.Value.Select((m, i) => new { m, i })).ToDictionary(x => x.m, x => x.i, TypeExtensions.MethodRefEqComparerInstance);
// Create map of type data constants
var typeDataNames = typeData.ToDictionary(x => x, x => typeInformationNames[x]);
var resolver = new JsMethod.Resolver {
LocalVarNames = localVarNames,
MethodNames = methodNames,
FieldNames = fieldNames,
TypeNames = typeNames,
VirtualCallIndices = virtualCallIndices,
InterfaceCallIndices = interfaceCallIndices,
InterfaceNames = interfaceNames,
TypeDataNames = typeDataNames,
};
var js = new StringBuilder();
js.Append("(function(){");
int jsIndent = 1;
Action jsNewLine = () => {
js.AppendLine();
js.Append(' ', jsIndent * JsMethod.tabSize);
};
jsNewLine();
js.Append("\"use strict\";");
jsNewLine();
// Construct methods
foreach (var methodInfo in methodAsts)
{
var mRef = methodInfo.Key;
var ast = methodInfo.Value;
var mJs = JsMethod.Create(mRef, resolver, ast);
var mJsLines = mJs.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
foreach (var line in mJsLines)
{
jsNewLine();
js.Append(line);
}
}
// Construct static fields
foreach (var field in staticFields.Select(x => x.Key))
{
jsNewLine();
js.AppendFormat("// {0}", field.FullName);
jsNewLine();
if (field.Name == "Empty" && field.DeclaringType.FullName == "System.String")
{
// Special case, as string does not have a static constructor to set String.Empty
js.AppendFormat("var {0} = \"\";", fieldNames[field]);
}
else
{
js.AppendFormat("var {0} = {1};", fieldNames[field], DefaultValuer.Get(field.FieldType, fieldNames));
}
}
// Construct type data
var typesSeenOrdered = typesSeen
.Where(x => x.Value > 0)
.Select(x => x.Key)
.OrderByReferencedFirst(x => x)
.ToArray();
var domTypes = new Dictionary <string, TypeReference>();
foreach (var type in typesSeenOrdered)
{
var unmappedType = type;
var tDef = unmappedType.Resolve();
// Check for DOM types
var jsClassAttr = tDef.GetCustomAttribute <JsClassAttribute>();
if (jsClassAttr != null)
{
if (jsClassAttr.ConstructorArguments.Count == 1)
{
// Non-abstract types only
var tagOrConstructorName = (string)jsClassAttr.ConstructorArguments[0].Value;
domTypes.Add(tagOrConstructorName, unmappedType);
}
}
// Type JS
jsNewLine();
js.AppendFormat("// {0}", unmappedType.FullName);
jsNewLine();
js.AppendFormat("var {0}={{", typeNames[type]);
// Type information
js.AppendFormat("{0}:\"{1}\"", typeDataNames[TypeData.JsName], typeNames[type]);
js.AppendFormat(", {0}:\"{1}\"", typeDataNames[TypeData.Name], unmappedType.Name());
js.AppendFormat(", {0}:\"{1}\"", typeDataNames[TypeData.Namespace], unmappedType.Namespace);
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsValueType], unmappedType.IsValueType ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsPrimitive], unmappedType.IsPrimitive ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsArray], unmappedType.IsArray ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.ElementType], unmappedType.IsArray ? typeNames.ValueOrDefault(((ArrayType)unmappedType).ElementType, "null") : "null");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsInterface], tDef.IsInterface ? "true" : "false");
var assignableTo = typesSeenOrdered.Where(x => unmappedType.IsAssignableTo(x)).Where(x => !x.IsSame(unmappedType)).ToArray();
js.AppendFormat(", {0}:[{1}]", typeDataNames[TypeData.AssignableTo], string.Join(", ", assignableTo.Select(x => typeNames[x])));
if (tDef.FullName == "System.Collections.Generic.Dictionary`2")
{
var typeGen = (GenericInstanceType)type;
var dict = tDef.Module.Import(typeof(DotNetWebToolkit.Cil2Js.JsResolvers.Classes._Dictionary <,>));
var dictGen = dict.MakeGeneric(typeGen.GenericArguments[0], typeGen.GenericArguments[1]);
var jsSlotsName = fieldNames[dictGen.EnumResolvedFields().First(x => x.Name == "slots")];
var slot = dictGen.Resolve().NestedTypes.First(x => x.Name == "Slot");
var slotGen = slot.MakeGeneric(typeGen.GenericArguments[0], typeGen.GenericArguments[1]);
var jsHashCodeName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "hashCode")];
var jskeyName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "key")];
var jsValueName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "value")];
js.AppendFormat(", {0}:['{1}','{2}','{3}','{4}']", typeDataNames[TypeData.IsDictionary], jsSlotsName, jsHashCodeName, jskeyName, jsValueName);
}
if (!tDef.IsInterface)
{
if (!tDef.IsAbstract)
{
// Virtual method table, only needed on concrete types
var typeAndBases = type.EnumThisAllBaseTypes().ToArray();
var methods = allVirtualMethods.ValueOrDefault(type);
if (methods != null)
{
var idxs = methods
.Select(x => {
var xBasemost = x.GetBasemostMethod(x);
return(new { m = x, idx = virtualCallIndices[xBasemost] });
})
.OrderBy(x => x.idx)
.ToArray();
var s = string.Join(", ", idxs.Select(x => methodNames.ValueOrDefault(x.m, "null")));
js.AppendFormat(", {0}:[{1}]", typeDataNames[TypeData.VTable], s);
}
// Interface tables, only needed on concrete types
var implementedIFaces = interfaceCalls.Where(x => typeAndBases.Any(y => y.DoesImplement(x.Key))).ToArray();
foreach (var iFace in implementedIFaces)
{
js.Append(", ");
var iFaceName = interfaceNames[iFace.Key];
js.AppendFormat("{0}:[", iFaceName);
var qInterfaceTableNames =
from iMethod in iFace.Value
let tMethod = typeAndBases.SelectMany(x => x.EnumResolvedMethods(iMethod)).First(x => x.IsImplementationOf(iMethod))
//let tM2 = JsResolver.ResolveMethod(tMethod)
let idx = interfaceCallIndices[iMethod]
orderby idx
let methodName = methodNames[tMethod]
select methodName;
var interfaceTableNames = qInterfaceTableNames.ToArray();
js.Append(string.Join(", ", interfaceTableNames));
js.Append("]");
}
}
}
if (tDef.IsEnum && tDef.GetCustomAttribute <JsStringEnumAttribute>() != null)
{
// JS string/enum map
var values = tDef.Fields.Where(x => x.IsLiteral).Select(x => {
return(string.Format("{0}:\"{1}\",\"{1}\":{0}", x.Constant, JsResolver.JsName(x)));
}).ToArray();
js.AppendFormat(", {0}:{{{1}}}", typeDataNames[TypeData.EnumStringMap], string.Join(", ", values));
}
// end
js.Append("};");
}
// Add type of each type, if System.RuntimeType has been seen
var typeRuntimeType = typesSeen.Keys.FirstOrDefault(x => x.FullName == "System.RuntimeType");
if (typeRuntimeType != null)
{
jsNewLine();
foreach (var type in typesSeenOrdered)
{
js.Append(typeNames[type]);
js.Append("._ = ");
}
js.Append(typeNames[typeRuntimeType]);
js.Append(";");
}
// Add comments descibing each interface
jsNewLine();
js.Append("// Interface name map");
jsNewLine();
js.AppendFormat("// {0} = VTable", typeDataNames[TypeData.VTable]);
foreach (var iFace in interfaceNames)
{
jsNewLine();
js.AppendFormat("// {0} = {1}", iFace.Value, iFace.Key.FullName);
}
// Add map of DOM types
if (domTypes.Any())
{
jsNewLine();
js.Append("// DOM type mapping");
jsNewLine();
// TODO: Auto-name this
js.Append("var __ = {");
jsIndent++;
foreach (var domType in domTypes)
{
jsNewLine();
js.AppendFormat("'{0}': {1},", domType.Key, typeNames[domType.Value]);
}
js.Length--;
jsIndent--;
jsNewLine();
js.Append("};");
}
if (typesSeenOrdered.Any())
{
jsNewLine();
js.Append("// json type mapping");
jsNewLine();
// TODO: Auto-name this
js.Append("var $$ = {");
foreach (var type in typesSeenOrdered)
{
js.AppendFormat("'{0}':{0},", typeNames[type]);
}
js.Length--;
js.Append("};");
var typesDicts = typesSeenOrdered
.Where(x => x.IsGenericInstance && x.Resolve().FullName == "System.Collections.Generic.Dictionary`2")
.ToArray();
if (typesDicts.Any())
{
jsNewLine();
js.Append("// json dictionary info");
jsNewLine();
// TODO: Auto-name or get rid of this
js.Append("var $d = {");
var any = false;
foreach (var type in typesDicts)
{
var typeName = typeNames[type];
var ctor = type.EnumResolvedMethods().First(x => x.Name == ".ctor" && !x.HasParameters);
var mAdd = type.EnumResolvedMethods().First(x => x.Name == "Add");
// If dict not involved in JSON, these methods may not be present
if (methodNames.ContainsKey(ctor) && methodNames.ContainsKey(mAdd))
{
var ctorName = methodNames[ctor];
var mAddName = methodNames[mAdd];
js.AppendFormat("'{0}':[{1},{2}],", typeName, ctorName, mAddName);
any = true;
}
}
if (any)
{
js.Length--;
}
js.Append("};");
}
}
jsNewLine();
jsNewLine();
js.Append("// Exports");
if (!testing)
{
var rootMethodsByType = rootMethods.ToLookup(x => x.DeclaringType, TypeExtensions.TypeRefEqComparerInstance);
Action <NamespaceTree> treeToJs = null;
treeToJs = tree => {
js.Append("{");
jsIndent++;
foreach (var subNs in tree.Namespaces)
{
jsNewLine();
js.AppendFormat("'{0}': ", subNs.NamespacePart);
treeToJs(subNs);
}
if (tree.Types.Any())
{
foreach (var type in tree.Types)
{
jsNewLine();
js.AppendFormat("'{0}': {{", type.Name);
jsIndent++;
foreach (var method in rootMethodsByType[type])
{
jsNewLine();
js.AppendFormat("'{0}': {1},", method.Name, methodNames[method]);
}
js.Length--;
jsIndent--;
jsNewLine();
js.Append("},");
}
js.Length--;
}
jsIndent--;
jsNewLine();
js.Append("}");
};
var trees = NamespaceTree.Make(rootMethodsByType.Select(x => x.Key));
foreach (var tree in trees)
{
jsNewLine();
js.AppendFormat("window['{0}'] = ", tree.NamespacePart);
treeToJs(tree);
js.Append(";");
}
}
else
{
jsNewLine();
js.AppendFormat("window['main'] = {0};", methodNames[rootMethods.First()]);
}
jsIndent--;
jsNewLine();
jsNewLine();
js.Append("})();");
var jsStr = js.ToString();
//Console.WriteLine(jsStr);
var qFieldMap =
from fieldName in fieldNames
let declType = fieldName.Key.DeclaringType
let declTypeMapped = JsResolver.TypeMapReverse(declType) ?? declType
let declTypeName = declTypeMapped.AssemblyQualifiedName()
where declType != null
group fieldName by declTypeName;
var fieldMap = qFieldMap.ToDictionary(x => x.Key, x => x.ToDictionary(y => y.Key.Name, y => y.Value));
var qTypeMap =
from typeName in typeNames
let type = typeName.Key.AssemblyQualifiedName()
where type != null
select new { type, typeName.Value };
var ttt = qTypeMap.ToArray();
var typeMap = ttt.ToDictionary(x => x.type, x => x.Value);
var jsTypeMap = new JsonTypeMap(typeMap, fieldMap);
return(new JsResult(jsStr, jsTypeMap));
}
protected override ICode VisitJsExplicit(StmtJsExplicit s)
{
this.NewLine();
this.HandleExplicitJs(s.JavaScript, s.NamedExprs);
return(s);
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var stmt = new StmtJsExplicit(ctx, "return [(~a[0]) >>> 0, (~a[1]) >>> 0];", a);
return stmt;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var stmt = new StmtJsExplicit(ctx, "return [(a[0] ^ b[0]) >>> 0, (a[1] ^ b[1]) >>> 0];", a, b);
return stmt;
}
protected override ICode VisitJsExplicit(StmtJsExplicit s) {
this.NewLine();
this.code.Append(s.JavaScript);
return s;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var u = ctx.Local(ctx.Int32.MakeArray(), "u");
var v = ctx.Local(ctx.Int32.MakeArray(), "v");
var m = ctx.Local(ctx.Int32, "m");
var n = ctx.Local(ctx.Int32, "n");
var r = ctx.Local(ctx.Int32.MakeArray(), "r");
var q = ctx.Local(ctx.Int32.MakeArray(), "q");
var i = ctx.Local(ctx.Int32, "i");
var j = ctx.Local(ctx.Int32, "j");
var k = ctx.Local(ctx.Int32, "k");
var l = ctx.Local(ctx.Int32, "l");
var p = ctx.Local(ctx.Int32, "p");
var t = ctx.Local(ctx.Int32, "t");
var s = ctx.Local(ctx.Int32, "s");
var x = ctx.Local(ctx.Int32, "x");
var qhat = ctx.Local(ctx.Int32, "qhat");
var rhat = ctx.Local(ctx.Int32, "rhat");
var mask = ctx.Literal(0xffff, ctx.Int32, "mask");
var limit = ctx.Literal(0x10000, ctx.Int32, "limit");
var divByZeroEx = new ExprNewObj(ctx, ctx.Module.Import(typeof(DivideByZeroException).GetConstructor(Type.EmptyTypes))).Named("divByZeroEx");
var js = @"
v = [b[1] & mask, b[1] >>> 16, b[0] & mask, b[0] >>> 16];
while (v[v.length - 1] === 0) {
v = v.slice(0, -1);
if (v.length === 0) throw divByZeroEx;
}
n = v.length;
u = [a[1] & mask, a[1] >>> 16, a[0] & mask, a[0] >>> 16];
while (u[u.length - 1] === 0 && u.length > n) u = u.slice(0, -1);
m = u.length;
r = [0, 0, 0, 0];
q = [0, 0, 0, 0];
if (n === 1) {
k = 0;
for (j = m - 1; j >= 0; j--) {
l = k * limit + u[j]
q[j] = (l / v[0]) >>> 0;
k = l - q[j] * v[0];
}
r[0] = k;
} else {
x = v[n - 1];
s = 16;
while (x > 0) {
x >>>= 1;
s--;
}
l = 0;
for (i = n - 1; i > 0; i--) v[i] = ((v[i] << s) | (v[i - 1] >> (16 - s))) & mask;
v[0] = (v[0] << s) & mask;
u.push(0);
for (i = m; i> 0; i--) u[i] = ((u[i] << s) | (u[i - 1] >> (16 - s))) & mask;
u[0] = (u[0] << s) & mask;
for (j = m - n; j >= 0; j--) {
l = u[j + n] * limit + u[j + n - 1];
qhat = (l / v[n - 1]) >>> 0;
rhat = l - qhat * v[n - 1];
for (;;) {
if (qhat >= limit || qhat * v[n - 2] > limit * rhat + u[j + n - 2]) {
qhat--;
rhat += v[n - 1];
if (rhat < limit) continue;
}
break;
}
k = 0;
for (i = 0; i < n; i++) {
p = qhat * v[i];
t = u[i + j] - k - (p & mask);
u[i + j] = t & mask;
k = (p >> 16) - (t >> 16);
}
t = u[j + n] - k;
u[j + n] = t;
q[j] = qhat;
if (t < 0) {
q[j]--;
k = 0;
for (i = 0; i < n; i++) {
t = u[i + j] + n[i] + k;
u[i + j] = t & mask;
k = t >> 16;
}
u[j + n] += k;
}
}
for (i = 0; i< n; i++) {
r[i] = ((u[i] >> s) | (u[i + 1] << (16 - s))) & mask;
}
}
return [[q[2] + q[3] * limit, q[0] + q[1] * limit], [r[2] + r[3] * limit, r[0] + r[1] * limit]];
";
var stmt = new StmtJsExplicit(ctx, js, a, b, u, v, m, n, r, q, i, j, k, l, p, s, t, qhat, rhat, mask, limit, divByZeroEx);
return stmt;
}
private static Stmt FindStmtReturn(Ctx ctx) {
var mRef = ctx.MRef;
var mRefRedirected = GetRedirect(mRef);
if (mRefRedirected != null) {
mRef = mRefRedirected;
}
var mDef = mRef.Resolve();
var jsAttr = mDef.GetCustomAttribute<JsAttribute>();
if (jsAttr != null) {
var ctorArgs = jsAttr.ConstructorArguments;
if (ctorArgs.Count == 2) {
if (ctorArgs[0].Type.IsType() && ((Array)ctorArgs[1].Value).Length == 0) {
// IJsImpl class provides the implementation
var iJsImpltype = ((TypeReference)ctorArgs[0].Value).LoadType();
var iJsImpl = (IJsImpl)Activator.CreateInstance(iJsImpltype);
var stmt = iJsImpl.GetImpl(ctx);
return stmt;
}
} else if (ctorArgs.Count == 1) {
if (ctorArgs[0].Type.IsString()) {
// Explicit JS string provides implementation
var js = (string)ctorArgs[0].Value;
var parameters = mRef.Parameters.Select((x, i) => ctx.MethodParameter(i, ((char)('a' + i)).ToString())).ToArray();
var stmt = new StmtJsExplicit(ctx, js, parameters.Concat(ctx.ThisNamed));
return stmt;
}
}
}
var mappedType = TypeMap(ctx.TRef);
if (mappedType == null && mDef.GetCustomAttribute<JsRedirectAttribute>() != null) {
mappedType = ctx.TRef;
}
if (mappedType != null) {
var mappedMRef = FindJsMember(mRef, mappedType);
if (mappedMRef != null) {
if (mappedMRef.ReturnType.FullName == typeof(Stmt).FullName) {
var m = mappedMRef.LoadMethod();
var stmt = (Stmt)m.Invoke(null, new object[] { ctx });
return stmt;
}
}
}
return null;
}
public static Stmt ToString(Ctx ctx) {
var js = "return String.fromCharCode(this);";
var stmt = new StmtJsExplicit(ctx, js, ctx.ThisNamed);
return stmt;
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var neg = ctx.Local(ctx.Boolean, "neg");
var aNegate = new ExprUnary(ctx, UnaryOp.Negate, ctx.Int64, a.Expr).Named("aNegate");
var bNegate = new ExprUnary(ctx, UnaryOp.Negate, ctx.Int64, b.Expr).Named("bNegate");
var divMod = new ExprCall(ctx, (Func<UInt64, UInt64, object>)_Int64UInt64.UInt64DivRem, null, a.Expr, b.Expr).Named("divMod");
var r = ctx.Local(ctx.Int64, "r");
var rNegate = new ExprUnary(ctx, UnaryOp.Negate, ctx.Int64, r.Expr).Named("rNegate");
// TODO: Throw ArithmeticException if a == Int64.MinValue and b == -1
// TODO: Handle a or b being Int64.MinValue
var js = @"
neg = false;
if (a[0] >>> 31) {
a = aNegate;
neg = true;
}
if (b[0] >>> 31) b = bNegate;
r = divMod[1];
return neg ? rNegate : r;
";
var stmt = new StmtJsExplicit(ctx, js, a, b, neg, r, aNegate, bNegate, divMod, rNegate);
return stmt;
}
public static Stmt get_FullName(Ctx ctx) {
var eNamespace = new ExprJsTypeData(ctx, TypeData.Namespace).Named("namespace");
var eName = new ExprJsTypeData(ctx, TypeData.Name).Named("name");
var stmt = new StmtJsExplicit(ctx, "return this.namespace+\".\"+this.name;", ctx.ThisNamed, eNamespace, eName);
return stmt;
}
public static JsResult CreateFrom(IEnumerable<MethodReference> rootMethods, bool verbose = false, bool testing = false) {
var todo = new Queue<MethodReference>();
foreach (var method in rootMethods) {
todo.Enqueue(method);
}
Action<MethodReference> addTodo = m => {
if (m.ContainsGenericParameters()) {
throw new Exception("Cannot add todo method with generic parameters");
}
todo.Enqueue(m);
};
// Each method, with the count of how often it is referenced.
var methodsSeen = new Dictionary<MethodReference, int>(rootMethods.ToDictionary(x => x, x => 1), TypeExtensions.MethodRefEqComparerInstance);
// Each type, with the count of how often it is referenced directly (newobj only at the moment).
var typesSeen = new Dictionary<TypeReference, int>(TypeExtensions.TypeRefEqComparerInstance);
// ASTs of all methods
var methodAsts = new Dictionary<MethodReference, ICode>(TypeExtensions.MethodRefEqComparerInstance);
// Each field, with the count of how often it is referenced.
var fieldAccesses = new Dictionary<FieldReference, int>(TypeExtensions.FieldReqEqComparerInstance);
// Each type records which virtual methods have their NewSlot definitions
var virtualCalls = new Dictionary<TypeReference, HashSet<MethodReference>>(TypeExtensions.TypeRefEqComparerInstance);
// Each basemost virtual method records the least-derived type actually called
// This allows only virtual methods in more-derived types to be transcoded
var virtualCallExactMethods = new Dictionary<MethodReference, IEnumerable<TypeReference>>(TypeExtensions.MethodRefEqComparerInstance);
// Each interface type records which interface methods are called
var interfaceCalls = new Dictionary<TypeReference, HashSet<MethodReference>>(TypeExtensions.TypeRefEqComparerInstance);
// All instance constructors must be updated after all methods have been processed, to initialise all referenced
// instance fields in the type, and to sort out 'return' statements.
// This has to be done later, so the list of referenced fields in complete
var instanceConstructors = new List<Ctx>();
while (todo.Any()) {
// TODO: parallelise
var mRef = todo.Dequeue();
var mDef = mRef.Resolve();
var tRef = mRef.DeclaringType;
var tDef = tRef.Resolve();
var ctx = new Ctx(tRef, mRef);
var ast = (ICode)JsResolver.ResolveMethod(ctx);
if (ast == null) {
var transcodeCtx = JsResolver.TranslateCtx(ctx) ?? ctx;
if (transcodeCtx.MRef.ContainsGenericParameters()) {
throw new InvalidOperationException("Method/type must not have generic parameters");
}
if (transcodeCtx.MDef.IsAbstract) {
throw new InvalidOperationException("Cannot transcode an abstract method");
}
if (transcodeCtx.MDef.IsInternalCall) {
throw new InvalidOperationException("Cannot transcode an internal call");
}
if (transcodeCtx.MDef.IsExternal()) {
throw new InvalidOperationException("Cannot transcode an external method");
}
if (!transcodeCtx.MDef.HasBody) {
throw new InvalidOperationException("Cannot transcode method without body");
}
if (!typesSeen.ContainsKey(tRef)) {
typesSeen.Add(tRef, 0);
}
ast = Transcoder.ToAst(transcodeCtx, verbose);
}
for (int i = 0; ; i++) {
var astOrg = ast;
ast = Transcoder.DoStep(s => (Stmt)VisitorJsRewriteSealedVCalls.V(s), (Stmt)ast, "VisitorJsRewriteSealedVCalls", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveAll.V(s), (Stmt)ast, "VisitorJsResolveAll", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveConv.V(s), (Stmt)ast, "VisitorJsResolveConv", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveSpecialTypes.V(s), (Stmt)ast, "VisitorJsResolveSpecialTypes", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveDelegates.V(s), (Stmt)ast, "VisitorJsResolveDelegates", verbose);
// 64bit must be after everything else
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolve64Bit.V(s), (Stmt)ast, "VisitorJsResolve64Bit", verbose);
if (ast == astOrg) {
break;
}
if (i > 10) {
// After 10 iterations even the most complex method should be sorted out
throw new InvalidOperationException("Error: Stuck in loop trying to resolve AST");
}
}
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveValueTypes.V(s), (Stmt)ast, "VisitorJsResolveValueTypes", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorIfSimplification.V(s), (Stmt)ast, "VisitorIfSimplification", verbose);
ast = Transcoder.DoStep(s => (Stmt)VisitorJsResolveByRefParameters.V(s), (Stmt)ast, "VisitorJsResolveByRefParameters", verbose);
if (mDef.IsVirtual && mRef.DeclaringType.IsValueType) {
// 'this' may be boxed or unboxed. Must be unboxed if boxed
// This is required because in real .NET the boxed and unboxed versions are both directly
// available at the this reference; this is not the case in the JS emulation of boxing
var unbox = new StmtJsExplicit(ctx, "if (this._) this = this.v;", ctx.ThisNamed);
ast = new StmtBlock(ctx, unbox, (Stmt)ast);
Transcoder.Print((Stmt)ast, "Unbox-this", verbose);
}
if (mDef.IsConstructor && !mDef.IsStatic) {
// Instance constructor; add instance field initialisation and final return of 'this' later
instanceConstructors.Add(ctx);
}
var cctors = VisitorFindStaticConstructors.V(ast)
.Where(x => !TypeExtensions.MethodRefEqComparerInstance.Equals(x, mRef))
.Distinct(TypeExtensions.MethodRefEqComparerInstance)
.ToArray();
if (cctors.Any()) {
// All methods that access static fields or methods must call the static constructor at the very
// start of the method. Except the static construtor itself, which must not recurse into itself.
var cctorCalls = cctors
.Select(x => new StmtWrapExpr(ctx, new ExprCall(ctx, x, null, Enumerable.Empty<Expr>(), false))).ToArray();
ast = new StmtBlock(ctx, cctorCalls.Concat((Stmt)ast));
Transcoder.Print((Stmt)ast, "Call-cctors", verbose);
}
if (mDef.IsConstructor && mDef.IsStatic) {
// At the beginning of the static constructor, it rewrites itself as an empty function, so it is only called once.
var rewrite = new StmtAssignment(ctx, new ExprJsVarMethodReference(ctx, mRef), new ExprJsEmptyFunction(ctx));
ast = new StmtBlock(ctx, rewrite, (Stmt)ast);
Transcoder.Print((Stmt)ast, "cctor-once-only", verbose);
}
methodAsts.Add(mRef, ast);
var fieldRefs = VisitorFindFieldAccesses.V(ast);
foreach (var fieldRef in fieldRefs) {
fieldAccesses[fieldRef] = fieldAccesses.ValueOrDefault(fieldRef) + 1;
}
var arrayRefs = VisitorFindNewArrays.V(ast);
foreach (var arrayRef in arrayRefs) {
typesSeen[arrayRef] = typesSeen.ValueOrDefault(arrayRef) + 1;
}
var types = VisitorFindRequiredTypes.V(ast);
foreach (var type in types) {
typesSeen[type] = typesSeen.ValueOrDefault(type) + 1;
}
if (mDef.GetCustomAttribute<JsReturnTypeDeepUseAttribute>(true) != null) {
var retType = mDef.ReturnType.FullResolve(ctx);
var retTypes = retType.EnumThisAllContainedTypes().ToArray();
foreach (var type in retTypes) {
typesSeen[type] = typesSeen.ValueOrDefault(type) + 1;
if (type.IsGenericInstance && type.Resolve().FullName == "System.Collections.Generic.Dictionary`2") {
// HACK - ensure no-arg ctor is present. JSON needs it
var ctor = type.EnumResolvedMethods().First(x => x.Name == ".ctor" && !x.HasParameters);
if (!methodsSeen.ContainsKey(ctor)) {
methodsSeen.Add(ctor, 1);
addTodo(ctor);
}
// HACK - ensure Add(key, value) method present. JSON need sit
var mAdd = type.EnumResolvedMethods().First(x => x.Name == "Add");
if (!methodsSeen.ContainsKey(mAdd)) {
methodsSeen.Add(mAdd, 1);
addTodo(mAdd);
}
}
}
}
var calledMethods = new List<ICall>();
var calls = VisitorFindCalls.V(ast);
foreach (var call in calls.Where(x => x.ExprType == Expr.NodeType.NewObj || x.IsVirtualCall)) {
// Add reference to each type constructed (direct access to type variable)
typesSeen[call.Type] = typesSeen.ValueOrDefault(call.Type) + 1;
}
foreach (var call in calls) {
if (call.CallMethod.DeclaringType.Resolve().IsInterface) {
var methodSet = interfaceCalls.ValueOrDefault(call.CallMethod.DeclaringType, () => new HashSet<MethodReference>(TypeExtensions.MethodRefEqComparerInstance), true);
methodSet.Add(call.CallMethod);
// Methods that require transcoding are added to 'todo' later
continue;
}
if (call.IsVirtualCall) {
var mBasemost = call.CallMethod.GetBasemostMethod(null);
var methodSet = virtualCalls.ValueOrDefault(mBasemost.DeclaringType, () => new HashSet<MethodReference>(TypeExtensions.MethodRefEqComparerInstance), true);
methodSet.Add(mBasemost);
var objType = call.Obj.Type;
var already = virtualCallExactMethods.ValueOrDefault(mBasemost).EmptyIfNull();
if (!already.Any(x => x.IsBaseOfOrEqual(objType))) {
virtualCallExactMethods[mBasemost] = already.Concat(objType).ToArray();
}
// Methods that require transcoding are added to 'todo' later
continue;
}
calledMethods.Add(call);
}
foreach (var call in calledMethods) {
if (methodsSeen.ContainsKey(call.CallMethod)) {
methodsSeen[call.CallMethod]++;
} else {
methodsSeen.Add(call.CallMethod, 1);
//todo.Enqueue(call.CallMethod);
addTodo(call.CallMethod);
}
}
if (!todo.Any()) {
// Add System.RuntimeType if any types have been seen
if (typesSeen.Any(x => x.Value > 0) && !typesSeen.Any(x => x.Key.FullName == "System.RuntimeType")) {
var runtimeType = ctx.Module.Import(Type.GetType("System.RuntimeType"));
typesSeen.Add(runtimeType, 1);
}
// Scan all virtual calls and add any required methods
// Need care to handle virtual methods with generic arguments
var virtualRoots = new HashSet<MethodReference>(virtualCalls.SelectMany(x => x.Value), TypeExtensions.MethodRefEqComparerInstance);
var requireMethods =
from type in typesSeen.Keys
//let typeReverseMapped = JsResolver.ReverseTypeMap(type)
let typeAndBases = type.EnumThisAllBaseTypes().ToArray()
let mVRoots = typeAndBases.SelectMany(x => virtualCalls.ValueOrDefault(x).EmptyIfNull()).ToArray()
let methods = type.EnumResolvedMethods(mVRoots).ToArray()
from method in methods//.Select(x => JsResolver.ResolveMethod(x))
let methodDef = method.Resolve()
where methodDef != null // HACK?
where !methodDef.IsStatic && methodDef.IsVirtual && !methodDef.IsAbstract
where !methodsSeen.ContainsKey(method)
let mBasemost = method.GetBasemostMethod(method)
where virtualCallExactMethods.ValueOrDefault(mBasemost).EmptyIfNull().Any(x => {
//return x.IsBaseOfOrEqual(typeReverseMapped) || typeReverseMapped.IsBaseOfOrEqual(x);
return x.IsBaseOfOrEqual(type) || type.IsBaseOfOrEqual(x);
})
where virtualRoots.Contains(mBasemost)
select method;
var requireMethodsArray = requireMethods.Distinct(TypeExtensions.MethodRefEqComparerInstance).ToArray();
foreach (var method in requireMethodsArray) {
methodsSeen.Add(method, 1); // TODO: How to properly handle count?
//todo.Enqueue(method);
addTodo(method);
}
// Scan all interface calls and add any required methods
var iFaceMethods =
from type in typesSeen.Keys
from iFace in interfaceCalls
let iFaceType = iFace.Key
let typeAndBases = type.EnumThisAllBaseTypes().ToArray()
where typeAndBases.Any(x => x.DoesImplement(iFaceType))
let methods = typeAndBases.SelectMany(x => x.EnumResolvedMethods(iFace.Value)).ToArray()
from method in methods//.Select(x => JsResolver.ResolveMethod(x))
where !methodsSeen.ContainsKey(method)
let methodDef = method.Resolve()
where methodDef != null // HACK?
where !methodDef.IsStatic && methodDef.IsVirtual && !methodDef.IsAbstract
from iFaceMethod in iFace.Value
where method.IsImplementationOf(iFaceMethod)
select method;
var iFaceMethodsArray = iFaceMethods.Distinct(TypeExtensions.MethodRefEqComparerInstance).ToArray();
foreach (var method in iFaceMethodsArray) {
methodsSeen.Add(method, 1);
addTodo(method);
//todo.Enqueue(method);
}
}
}
// Add type count to System.RuntimeType
var runtimeTypeInc = typesSeen.Keys.FirstOrDefault(x => x.FullName == "System.RuntimeType");
if (runtimeTypeInc != null) {
typesSeen[runtimeTypeInc] += 2;
}
var instanceFieldsByType = fieldAccesses
.Where(x => !x.Key.Resolve().IsStatic)
.ToLookup(x => x.Key.DeclaringType.FullResolve(x.Key), TypeExtensions.TypeRefEqComparerInstance);
// Update all instance constructors to initialise instance fields, add final 'return' statement,
// and update any early returns to return 'this'
foreach (var ctx in instanceConstructors) {
var fields = instanceFieldsByType[ctx.TRef].Select(x => x.Key);
var initStmts = fields.Select(x => {
var f = x.FullResolve(ctx.TRef, ctx.MRef);
var assign = new StmtAssignment(ctx,
new ExprFieldAccess(ctx, ctx.This, f),
new ExprDefaultValue(ctx, f.FieldType));
return assign;
}).ToArray();
var returnStmt = new StmtReturn(ctx, ctx.This);
var ast = methodAsts[ctx.MRef];
ast = new StmtBlock(ctx, initStmts.Concat((Stmt)ast).Concat(returnStmt));
ast = VisitorJsReturnThis.V(ast, ctx.This);
methodAsts[ctx.MRef] = ast;
}
// Locally name all instance fields; base type names must not be re-used in derived types
var instanceFieldsIndexed = new Dictionary<int, Tuple<IEnumerable<FieldReference>, int>>(); // <index, Tuple<all fields, total use count>>
instanceFieldsByType.TypeTreeTraverse(x => x.Key, (fields, idx) => {
var ordered = fields.OrderByDescending(x => x.Value).ToArray(); // Order by usage count, highest first
foreach (var field in ordered) {
var idxInfo = instanceFieldsIndexed.ValueOrDefault(idx, () => Tuple.Create(Enumerable.Empty<FieldReference>(), 0));
var newIdxInfo = Tuple.Create((IEnumerable<FieldReference>)idxInfo.Item1.Concat(field.Key).ToArray(), idxInfo.Item2 + field.Value);
instanceFieldsIndexed[idx] = newIdxInfo;
idx++;
}
return idx;
}, 0);
var orderedInstanceFields = instanceFieldsIndexed.OrderByDescending(x => x.Value.Item2).ToArray();
var instanceFieldNameGen = new NameGenerator();
var instanceFieldNames = orderedInstanceFields
.Select(x => new { name = instanceFieldNameGen.GetNewName(), fields = x.Value.Item1 })
.SelectMany(x => x.fields.Select(y => new { f = y, name = x.name }))
.ToArray();
// Prepare list of static fields for global naming
var staticFields = fieldAccesses.Where(x => x.Key.Resolve().IsStatic).ToArray();
// Prepare local variables for global naming.
// All locals in all methods are sorted by usage count, then all methods usage counts are combined
var clusters = methodAsts.Values.SelectMany(x => VisitorJsPhiClusters.V(x).Select(y => new ExprVarCluster(y))).ToArray();
var varToCluster = clusters.SelectMany(x => x.Vars.Select(y => new { cluster = x, var = y })).ToDictionary(x => x.var, x => x.cluster);
var varsWithCount = methodAsts.Values.Select(x => {
var methodVars = VisitorFindVars.V(x);
// Parameters need one extra count, as they appear in the method declaration
methodVars = methodVars.Concat(methodVars.Where(y => y.ExprType == Expr.NodeType.VarParameter).Distinct());
var ret = methodVars.Select(y => varToCluster.ValueOrDefault(y) ?? y)
.GroupBy(y => y)
.Select(y => new { var = y.Key, count = y.Count() })
.OrderByDescending(y => y.count)
.ToArray();
return ret;
}).ToArray();
var localVarCounts = new Dictionary<int, int>();
foreach (var x in varsWithCount) {
for (int i = 0; i < x.Length; i++) {
localVarCounts[i] = localVarCounts.ValueOrDefault(i) + x[i].count;
}
}
// Globally name all items that require names
var needNaming =
localVarCounts.Select(x => new { item = (object)x.Key, count = x.Value })
.Concat(methodsSeen.Select(x => new { item = (object)x.Key, count = x.Value }))
.Concat(staticFields.Select(x => new { item = (object)x.Key, count = x.Value }))
.Concat(typesSeen.Select(x => new { item = (object)x.Key, count = x.Value }))
.Where(x => x.count > 0)
.OrderByDescending(x => x.count)
.ToArray();
var nameGen = new NameGenerator();
var globalNames = needNaming.ToDictionary(x => x.item, x => nameGen.GetNewName());
// Create map of all local variables to their names
var localVarNames = varsWithCount.Select(x => x.Select((y, i) => new { y.var, name = globalNames[i] }))
.SelectMany(x => x)
.SelectMany(x => {
var varCluster = x.var as ExprVarCluster;
if (varCluster != null) {
return varCluster.Vars.Select(y => new { var = y, name = x.name });
} else {
return new[] { x };
}
})
.ToDictionary(x => x.var, x => x.name);
// Create map of all method names
var methodNames = methodsSeen.Keys.ToDictionary(x => x, x => globalNames[x], TypeExtensions.MethodRefEqComparerInstance);
// Create list of all static field names
var staticFieldNames = staticFields.Select(x => new { f = x.Key, name = globalNames[x.Key] });
// Create map of all fields
if (testing) {
instanceFieldNames = instanceFieldNames.Select(x => {
switch (x.f.FullName) {
case "System.String System.Exception::_message":
return new { x.f, name = "$$_message" };
}
return x;
}).ToArray();
}
var fieldNames = instanceFieldNames.Concat(staticFieldNames).ToDictionary(x => x.f, x => x.name, TypeExtensions.FieldReqEqComparerInstance);
// Create map of type names
var typeNames = typesSeen
.Where(x => x.Value > 0)
.ToDictionary(x => x.Key, x => globalNames[x.Key], TypeExtensions.TypeRefEqComparerInstance);
// Create virtual call tables
var virtualCallIndices = new Dictionary<MethodReference, int>(TypeExtensions.MethodRefEqComparerInstance);
var allVirtualMethods = new Dictionary<TypeReference, HashSet<MethodReference>>(TypeExtensions.TypeRefEqComparerInstance);
typesSeen.Select(x => x.Key).TypeTreeTraverse(x => x, (type, vCalls) => {
var mNewSlots = virtualCalls.ValueOrDefault(type).EmptyIfNull().ToArray();
int idx = vCalls.Length;
foreach (var mNewSlot in mNewSlots) {
virtualCallIndices[mNewSlot] = idx++;
}
var vCallsWithThisType = vCalls.Concat(mNewSlots).ToArray();
if (vCallsWithThisType.Length > 0) {
var typesAndBases = type.EnumThisAllBaseTypes().ToArray();
var mVRoots = typesAndBases.SelectMany(x => virtualCalls.ValueOrDefault(x).EmptyIfNull()).ToArray();
var ms = type.EnumResolvedMethods(mVRoots).ToArray();
for (int i = 0; i < vCalls.Length; i++) {
var mVCall = vCallsWithThisType[i];
foreach (var m in ms) {
if (m.MatchMethodOnly(mVCall)) {
vCallsWithThisType[i] = m;
}
}
}
var typeVMethods = new HashSet<MethodReference>(vCallsWithThisType, TypeExtensions.MethodRefEqComparerInstance);
allVirtualMethods.Add(type, typeVMethods);
}
return vCallsWithThisType;
}, new MethodReference[0]);
var typeData = Enum.GetValues(typeof(TypeData)).Cast<TypeData>().ToArray();
// Name all items that are within the type information
var needTypeInformationNaming =
interfaceCalls.Select(x => new { item = (object)x.Key, count = 1 })
.Concat(typeData.Select(x => new { item = (object)x, count = 1 }))
.OrderByDescending(x => x.count)
.ToArray();
var typeInformationNameGen = new NameGenerator();
var typeInformationNames = needTypeInformationNaming.ToDictionary(x => x.item, x => typeInformationNameGen.GetNewName());
if (testing) {
typeInformationNames[TypeData.Name] = "$$TypeName";
typeInformationNames[TypeData.Namespace] = "$$TypeNamespace";
}
// Create map of interfaces to their names
var interfaceNames = interfaceCalls.Keys.ToDictionary(x => x, x => typeInformationNames[x], TypeExtensions.TypeRefEqComparerInstance);
var interfaceCallIndices = interfaceCalls.SelectMany(x => x.Value.Select((m, i) => new { m, i })).ToDictionary(x => x.m, x => x.i, TypeExtensions.MethodRefEqComparerInstance);
// Create map of type data constants
var typeDataNames = typeData.ToDictionary(x => x, x => typeInformationNames[x]);
var resolver = new JsMethod.Resolver {
LocalVarNames = localVarNames,
MethodNames = methodNames,
FieldNames = fieldNames,
TypeNames = typeNames,
VirtualCallIndices = virtualCallIndices,
InterfaceCallIndices = interfaceCallIndices,
InterfaceNames = interfaceNames,
TypeDataNames = typeDataNames,
};
var js = new StringBuilder();
js.Append("(function(){");
int jsIndent = 1;
Action jsNewLine = () => {
js.AppendLine();
js.Append(' ', jsIndent * JsMethod.tabSize);
};
jsNewLine();
js.Append("\"use strict\";");
jsNewLine();
// Construct methods
foreach (var methodInfo in methodAsts) {
var mRef = methodInfo.Key;
var ast = methodInfo.Value;
var mJs = JsMethod.Create(mRef, resolver, ast);
var mJsLines = mJs.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
foreach (var line in mJsLines) {
jsNewLine();
js.Append(line);
}
}
// Construct static fields
foreach (var field in staticFields.Select(x => x.Key)) {
jsNewLine();
js.AppendFormat("// {0}", field.FullName);
jsNewLine();
if (field.Name == "Empty" && field.DeclaringType.FullName == "System.String") {
// Special case, as string does not have a static constructor to set String.Empty
js.AppendFormat("var {0} = \"\";", fieldNames[field]);
} else {
js.AppendFormat("var {0} = {1};", fieldNames[field], DefaultValuer.Get(field.FieldType, fieldNames));
}
}
// Construct type data
var typesSeenOrdered = typesSeen
.Where(x => x.Value > 0)
.Select(x => x.Key)
.OrderByReferencedFirst(x => x)
.ToArray();
var domTypes = new Dictionary<string, TypeReference>();
foreach (var type in typesSeenOrdered) {
var unmappedType = type;
var tDef = unmappedType.Resolve();
// Check for DOM types
var jsClassAttr = tDef.GetCustomAttribute<JsClassAttribute>();
if (jsClassAttr != null) {
if (jsClassAttr.ConstructorArguments.Count == 1) {
// Non-abstract types only
var tagOrConstructorName = (string)jsClassAttr.ConstructorArguments[0].Value;
domTypes.Add(tagOrConstructorName, unmappedType);
}
}
// Type JS
jsNewLine();
js.AppendFormat("// {0}", unmappedType.FullName);
jsNewLine();
js.AppendFormat("var {0}={{", typeNames[type]);
// Type information
js.AppendFormat("{0}:\"{1}\"", typeDataNames[TypeData.JsName], typeNames[type]);
js.AppendFormat(", {0}:\"{1}\"", typeDataNames[TypeData.Name], unmappedType.Name());
js.AppendFormat(", {0}:\"{1}\"", typeDataNames[TypeData.Namespace], unmappedType.Namespace);
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsValueType], unmappedType.IsValueType ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsPrimitive], unmappedType.IsPrimitive ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsArray], unmappedType.IsArray ? "true" : "false");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.ElementType], unmappedType.IsArray ? typeNames.ValueOrDefault(((ArrayType)unmappedType).ElementType, "null") : "null");
js.AppendFormat(", {0}:{1}", typeDataNames[TypeData.IsInterface], tDef.IsInterface ? "true" : "false");
var assignableTo = typesSeenOrdered.Where(x => unmappedType.IsAssignableTo(x)).Where(x => !x.IsSame(unmappedType)).ToArray();
js.AppendFormat(", {0}:[{1}]", typeDataNames[TypeData.AssignableTo], string.Join(", ", assignableTo.Select(x => typeNames[x])));
if (tDef.FullName == "System.Collections.Generic.Dictionary`2") {
var typeGen = (GenericInstanceType)type;
var dict = tDef.Module.Import(typeof(DotNetWebToolkit.Cil2Js.JsResolvers.Classes._Dictionary<,>));
var dictGen = dict.MakeGeneric(typeGen.GenericArguments[0], typeGen.GenericArguments[1]);
var jsSlotsName = fieldNames[dictGen.EnumResolvedFields().First(x => x.Name == "slots")];
var slot = dictGen.Resolve().NestedTypes.First(x => x.Name == "Slot");
var slotGen = slot.MakeGeneric(typeGen.GenericArguments[0], typeGen.GenericArguments[1]);
var jsHashCodeName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "hashCode")];
var jskeyName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "key")];
var jsValueName = fieldNames[slotGen.EnumResolvedFields().First(x => x.Name == "value")];
js.AppendFormat(", {0}:['{1}','{2}','{3}','{4}']", typeDataNames[TypeData.IsDictionary], jsSlotsName, jsHashCodeName, jskeyName, jsValueName);
}
if (!tDef.IsInterface) {
if (!tDef.IsAbstract) {
// Virtual method table, only needed on concrete types
var typeAndBases = type.EnumThisAllBaseTypes().ToArray();
var methods = allVirtualMethods.ValueOrDefault(type);
if (methods != null) {
var idxs = methods
.Select(x => {
var xBasemost = x.GetBasemostMethod(x);
return new { m = x, idx = virtualCallIndices[xBasemost] };
})
.OrderBy(x => x.idx)
.ToArray();
var s = string.Join(", ", idxs.Select(x => methodNames.ValueOrDefault(x.m, "null")));
js.AppendFormat(", {0}:[{1}]", typeDataNames[TypeData.VTable], s);
}
// Interface tables, only needed on concrete types
var implementedIFaces = interfaceCalls.Where(x => typeAndBases.Any(y => y.DoesImplement(x.Key))).ToArray();
foreach (var iFace in implementedIFaces) {
js.Append(", ");
var iFaceName = interfaceNames[iFace.Key];
js.AppendFormat("{0}:[", iFaceName);
var qInterfaceTableNames =
from iMethod in iFace.Value
let tMethod = typeAndBases.SelectMany(x => x.EnumResolvedMethods(iMethod)).First(x => x.IsImplementationOf(iMethod))
//let tM2 = JsResolver.ResolveMethod(tMethod)
let idx = interfaceCallIndices[iMethod]
orderby idx
let methodName = methodNames[tMethod]
select methodName;
var interfaceTableNames = qInterfaceTableNames.ToArray();
js.Append(string.Join(", ", interfaceTableNames));
js.Append("]");
}
}
}
if (tDef.IsEnum && tDef.GetCustomAttribute<JsStringEnumAttribute>() != null) {
// JS string/enum map
var values = tDef.Fields.Where(x => x.IsLiteral).Select(x => {
return string.Format("{0}:\"{1}\",\"{1}\":{0}", x.Constant, JsResolver.JsName(x));
}).ToArray();
js.AppendFormat(", {0}:{{{1}}}", typeDataNames[TypeData.EnumStringMap], string.Join(", ", values));
}
// end
js.Append("};");
}
// Add type of each type, if System.RuntimeType has been seen
var typeRuntimeType = typesSeen.Keys.FirstOrDefault(x => x.FullName == "System.RuntimeType");
if (typeRuntimeType != null) {
jsNewLine();
foreach (var type in typesSeenOrdered) {
js.Append(typeNames[type]);
js.Append("._ = ");
}
js.Append(typeNames[typeRuntimeType]);
js.Append(";");
}
// Add comments descibing each interface
jsNewLine();
js.Append("// Interface name map");
jsNewLine();
js.AppendFormat("// {0} = VTable", typeDataNames[TypeData.VTable]);
foreach (var iFace in interfaceNames) {
jsNewLine();
js.AppendFormat("// {0} = {1}", iFace.Value, iFace.Key.FullName);
}
// Add map of DOM types
if (domTypes.Any()) {
jsNewLine();
js.Append("// DOM type mapping");
jsNewLine();
// TODO: Auto-name this
js.Append("var __ = {");
jsIndent++;
foreach (var domType in domTypes) {
jsNewLine();
js.AppendFormat("'{0}': {1},", domType.Key, typeNames[domType.Value]);
}
js.Length--;
jsIndent--;
jsNewLine();
js.Append("};");
}
if (typesSeenOrdered.Any()) {
jsNewLine();
js.Append("// json type mapping");
jsNewLine();
// TODO: Auto-name this
js.Append("var $$ = {");
foreach (var type in typesSeenOrdered) {
js.AppendFormat("'{0}':{0},", typeNames[type]);
}
js.Length--;
js.Append("};");
var typesDicts = typesSeenOrdered
.Where(x => x.IsGenericInstance && x.Resolve().FullName == "System.Collections.Generic.Dictionary`2")
.ToArray();
if (typesDicts.Any()) {
jsNewLine();
js.Append("// json dictionary info");
jsNewLine();
// TODO: Auto-name or get rid of this
js.Append("var $d = {");
var any = false;
foreach (var type in typesDicts) {
var typeName = typeNames[type];
var ctor = type.EnumResolvedMethods().First(x => x.Name == ".ctor" && !x.HasParameters);
var mAdd = type.EnumResolvedMethods().First(x => x.Name == "Add");
// If dict not involved in JSON, these methods may not be present
if (methodNames.ContainsKey(ctor) && methodNames.ContainsKey(mAdd)) {
var ctorName = methodNames[ctor];
var mAddName = methodNames[mAdd];
js.AppendFormat("'{0}':[{1},{2}],", typeName, ctorName, mAddName);
any = true;
}
}
if (any) {
js.Length--;
}
js.Append("};");
}
}
jsNewLine();
jsNewLine();
js.Append("// Exports");
if (!testing) {
var rootMethodsByType = rootMethods.ToLookup(x => x.DeclaringType, TypeExtensions.TypeRefEqComparerInstance);
Action<NamespaceTree> treeToJs = null;
treeToJs = tree => {
js.Append("{");
jsIndent++;
foreach (var subNs in tree.Namespaces) {
jsNewLine();
js.AppendFormat("'{0}': ", subNs.NamespacePart);
treeToJs(subNs);
}
if (tree.Types.Any()) {
foreach (var type in tree.Types) {
jsNewLine();
js.AppendFormat("'{0}': {{", type.Name);
jsIndent++;
foreach (var method in rootMethodsByType[type]) {
jsNewLine();
js.AppendFormat("'{0}': {1},", method.Name, methodNames[method]);
}
js.Length--;
jsIndent--;
jsNewLine();
js.Append("},");
}
js.Length--;
}
jsIndent--;
jsNewLine();
js.Append("}");
};
var trees = NamespaceTree.Make(rootMethodsByType.Select(x => x.Key));
foreach (var tree in trees) {
jsNewLine();
js.AppendFormat("window['{0}'] = ", tree.NamespacePart);
treeToJs(tree);
js.Append(";");
}
} else {
jsNewLine();
js.AppendFormat("window['main'] = {0};", methodNames[rootMethods.First()]);
}
jsIndent--;
jsNewLine();
jsNewLine();
js.Append("})();");
var jsStr = js.ToString();
//Console.WriteLine(jsStr);
var qFieldMap =
from fieldName in fieldNames
let declType = fieldName.Key.DeclaringType
let declTypeMapped = JsResolver.TypeMapReverse(declType) ?? declType
let declTypeName = declTypeMapped.AssemblyQualifiedName()
where declType != null
group fieldName by declTypeName;
var fieldMap = qFieldMap.ToDictionary(x => x.Key, x => x.ToDictionary(y => y.Key.Name, y => y.Value));
var qTypeMap =
from typeName in typeNames
let type = typeName.Key.AssemblyQualifiedName()
where type != null
select new { type, typeName.Value };
var ttt = qTypeMap.ToArray();
var typeMap = ttt.ToDictionary(x => x.type, x => x.Value);
var jsTypeMap = new JsonTypeMap(typeMap, fieldMap);
return new JsResult(jsStr, jsTypeMap);
}
public Stmt GetImpl(Ctx ctx) {
var a = ctx.MethodParameter(0, "a");
var b = ctx.MethodParameter(1, "b");
var stmt = new StmtJsExplicit(ctx, "return a[0] !== b[0] || a[1] !== b[1];", a, b);
return stmt;
}
public static Stmt GetType(Ctx ctx) {
var js = "return typeof(this) == \"string\" ? stringType : this._ || __[this.tagName] || __[this.constructor.name];";
var stringType = new ExprJsTypeVarName(ctx, ctx.String).Named("stringType");
var stmt = new StmtJsExplicit(ctx, js, ctx.ThisNamed, stringType);
return stmt;
}