protected override ICode VisitJsResolvedProperty(ExprJsResolvedProperty e) {
if (e.Call.CallMethod != null) {
var ctx = e.Ctx;
var mDef = e.Call.CallMethod.Resolve();
if (mDef.IsSetter) {
var tRef = e.Call.CallMethod.Parameters.Last().ParameterType;
var tDef = tRef.Resolve();
var attr = tDef.GetCustomAttribute<JsStringEnumAttribute>();
if (attr != null) {
var prop = new ExprJsResolvedProperty(ctx, new FakeCall(e.Call), e.PropertyName).Named("prop");
var type = new ExprJsTypeVarName(ctx, tRef).Named("type");
var enumStringMap = new ExprJsTypeData(ctx, TypeData.EnumStringMap).Named("enumStringMap");
var value = e.Call.Args.Last().Named("value");
var js = "prop = type.enumStringMap[value]";
var expr = new ExprJsExplicit(ctx, js, e.Type, type, enumStringMap, value, prop);
return expr;
}
} else {
var tDef = e.Type.Resolve();
var attr = tDef.GetCustomAttribute<JsStringEnumAttribute>();
if (attr != null) {
var prop = new ExprJsResolvedProperty(ctx, new FakeCall(e.Call), e.PropertyName).Named("prop");
var type = new ExprJsTypeVarName(ctx, e.Type).Named("type");
var enumStringMap = new ExprJsTypeData(ctx, TypeData.EnumStringMap).Named("enumStringMap");
var js = "type.enumStringMap[prop]";
var expr = new ExprJsExplicit(ctx, js, e.Type, prop, type, enumStringMap);
return expr;
}
}
}
return base.VisitJsResolvedProperty(e);
}
protected override ICode VisitBox(ExprBox e)
{
var ctx = e.Ctx;
var expr = (Expr)this.Visit(e.Expr);
if (e.Type.IsUnsignedInteger() && expr.Type.IsSignedInteger())
{
expr = new ExprConv(ctx, expr, e.Type, false);
}
if (!e.Type.IsValueType)
{
// For ref-types 'box' does nothing
return(this.Visit(e.Expr));
}
var eType = new ExprJsTypeVarName(ctx, e.Type);
if (e.Type.IsNullable())
{
var exprIsVar = expr.IsVar();
var innerType = e.Type.GetNullableInnerType();
var temp = exprIsVar ? null : new ExprVarLocal(ctx, e.Type);
var box = new ExprBox(ctx, temp ?? expr, innerType).Named("box");
var nullableJs = exprIsVar ? "(expr !== null ? box : null)" : "((temp = expr) !== null ? box : null)";
var nullableExpr = new ExprJsExplicit(ctx, nullableJs, innerType, temp.Named("temp"), expr.Named("expr"), box);
return(nullableExpr);
}
else
{
var deepCopyExpr = InternalFunctions.ValueTypeDeepCopyIfRequired(e.Type, () => (Expr)this.Visit(expr));
var int2bool = e.Type.IsBoolean() && expr.Type.IsInteger() ? "!!" : "";
var js = "{v:" + int2bool + "expr,_:type}";
var ret = new ExprJsExplicit(ctx, js, e.Type, (deepCopyExpr ?? expr).Named("expr"), eType.Named("type"));
return(ret);
}
}
protected override ICode VisitConv(ExprConv e)
{
var fromType = e.Expr.Type;
var toType = e.Type;
var fromTypeMetadataType = fromType.MetadataType;
var toTypeMetadataType = toType.MetadataType;
if (e.ForceFromUnsigned)
{
switch (fromTypeMetadataType)
{
case MetadataType.SByte: fromTypeMetadataType = MetadataType.Byte; break;
case MetadataType.Int16: fromTypeMetadataType = MetadataType.UInt16; break;
case MetadataType.Int32: fromTypeMetadataType = MetadataType.UInt32; break;
case MetadataType.Int64: fromTypeMetadataType = MetadataType.UInt64; break;
case MetadataType.IntPtr: fromTypeMetadataType = MetadataType.UIntPtr; break;
}
}
if (fromTypeMetadataType == MetadataType.Char)
{
fromTypeMetadataType = MetadataType.UInt16;
}
if (toTypeMetadataType == MetadataType.Char)
{
toTypeMetadataType = MetadataType.UInt16;
}
var fromIdx = indexMap.ValueOrDefault(fromTypeMetadataType, -1);
var toIdx = indexMap.ValueOrDefault(toTypeMetadataType, -1);
if (fromIdx == -1 || toIdx == -1)
{
return(e.Expr);
}
var ctx = e.Ctx;
var js = jss[fromIdx, toIdx];
if (js != null)
{
// In-place conversion
var expr = new ExprJsExplicit(ctx, js, e.Type, e.Expr.Named("e"));
return(expr);
}
else
{
// Call conversion function
var convMi = ((Func <int, int>)InternalFunctions.Conv <int, int>).Method.GetGenericMethodDefinition();
var mConv = ctx.Module.Import(convMi).MakeGeneric(e.Expr.Type, e.Type);
var convCall = new ExprCall(ctx, mConv, null, e.Expr);
return(convCall);
}
}
protected override ICode VisitReturn(StmtReturn s)
{
var ctx = s.Ctx;
var expr = (Expr)this.Visit(s.Expr);
if (expr != null && expr.Type.IsInteger() && ctx.MRef.ReturnType.FullResolve(ctx).IsBoolean())
{
expr = new ExprJsExplicit(ctx, "!!expr", ctx.Boolean, expr.Named("expr"));
}
if (expr != s.Expr)
{
return(new StmtReturn(ctx, expr));
}
else
{
return(s);
}
}
protected virtual ICode VisitJsExplicit(ExprJsExplicit e)
{
this.ThrowOnNoOverride();
var namedExprs = this.HandleList(e.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 ExprJsExplicit(e.Ctx, e.JavaScript, e.Type, namedExprs));
}
else
{
return(e);
}
}
protected override ICode VisitJsResolvedProperty(ExprJsResolvedProperty e)
{
if (e.Call.CallMethod != null)
{
var ctx = e.Ctx;
var mDef = e.Call.CallMethod.Resolve();
if (mDef.IsSetter)
{
var tRef = e.Call.CallMethod.Parameters.Last().ParameterType;
var tDef = tRef.Resolve();
var attr = tDef.GetCustomAttribute <JsStringEnumAttribute>();
if (attr != null)
{
var prop = new ExprJsResolvedProperty(ctx, new FakeCall(e.Call), e.PropertyName).Named("prop");
var type = new ExprJsTypeVarName(ctx, tRef).Named("type");
var enumStringMap = new ExprJsTypeData(ctx, TypeData.EnumStringMap).Named("enumStringMap");
var value = e.Call.Args.Last().Named("value");
var js = "prop = type.enumStringMap[value]";
var expr = new ExprJsExplicit(ctx, js, e.Type, type, enumStringMap, value, prop);
return(expr);
}
}
else
{
var tDef = e.Type.Resolve();
var attr = tDef.GetCustomAttribute <JsStringEnumAttribute>();
if (attr != null)
{
var prop = new ExprJsResolvedProperty(ctx, new FakeCall(e.Call), e.PropertyName).Named("prop");
var type = new ExprJsTypeVarName(ctx, e.Type).Named("type");
var enumStringMap = new ExprJsTypeData(ctx, TypeData.EnumStringMap).Named("enumStringMap");
var js = "type.enumStringMap[prop]";
var expr = new ExprJsExplicit(ctx, js, e.Type, prop, type, enumStringMap);
return(expr);
}
}
}
return(base.VisitJsResolvedProperty(e));
}
protected override ICode VisitAssignment(ExprAssignment e)
{
var ctx = e.Ctx;
var expr = (Expr)this.Visit(e.Expr);
var target = (ExprVar)this.Visit(e.Target);
if (target.Type.IsBoolean() && expr.Type.IsInteger())
{
expr = new ExprJsExplicit(ctx, "!!expr", ctx.Boolean, expr.Named("expr"));
}
else if (target.Type.IsUnsignedInteger() && expr.Type.IsSignedInteger())
{
expr = new ExprConv(ctx, expr, expr.Type.UnsignedEquivilent(ctx.TypeSystem), false);
}
if (expr != e.Expr || target != e.Target)
{
return(new ExprAssignment(ctx, target, expr));
}
else
{
return(e);
}
}
protected virtual ICode VisitJsExplicit(ExprJsExplicit e) {
this.ThrowOnNoOverride();
var namedExprs = this.HandleList(e.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 ExprJsExplicit(e.Ctx, e.JavaScript, e.Type, namedExprs);
} else {
return e;
}
}
protected override ICode VisitReturn(StmtReturn s) {
var ctx = s.Ctx;
var expr = (Expr)this.Visit(s.Expr);
if (expr != null && expr.Type.IsInteger() && ctx.MRef.ReturnType.FullResolve(ctx).IsBoolean()) {
expr = new ExprJsExplicit(ctx, "!!expr", ctx.Boolean, expr.Named("expr"));
}
if (expr != s.Expr) {
return new StmtReturn(ctx, expr);
} else {
return s;
}
}
protected override ICode VisitAssignment(ExprAssignment e) {
var ctx = e.Ctx;
var expr = (Expr)this.Visit(e.Expr);
var target = (ExprVar)this.Visit(e.Target);
if (target.Type.IsBoolean() && expr.Type.IsInteger()) {
expr = new ExprJsExplicit(ctx, "!!expr", ctx.Boolean, expr.Named("expr"));
} else if (target.Type.IsUnsignedInteger() && expr.Type.IsSignedInteger()) {
expr = new ExprConv(ctx, expr, expr.Type.UnsignedEquivilent(ctx.TypeSystem), false);
}
if (expr != e.Expr || target != e.Target) {
return new ExprAssignment(ctx, target, expr);
} else {
return e;
}
}
protected override ICode VisitBox(ExprBox e) {
var ctx = e.Ctx;
var expr = (Expr)this.Visit(e.Expr);
if (e.Type.IsUnsignedInteger() && expr.Type.IsSignedInteger()) {
expr = new ExprConv(ctx, expr, e.Type, false);
}
if (!e.Type.IsValueType) {
// For ref-types 'box' does nothing
return this.Visit(e.Expr);
}
var eType = new ExprJsTypeVarName(ctx, e.Type);
if (e.Type.IsNullable()) {
var exprIsVar = expr.IsVar();
var innerType = e.Type.GetNullableInnerType();
var temp = exprIsVar ? null : new ExprVarLocal(ctx, e.Type);
var box = new ExprBox(ctx, temp ?? expr, innerType).Named("box");
var nullableJs = exprIsVar ? "(expr !== null ? box : null)" : "((temp = expr) !== null ? box : null)";
var nullableExpr = new ExprJsExplicit(ctx, nullableJs, innerType, temp.Named("temp"), expr.Named("expr"), box);
return nullableExpr;
} else {
var deepCopyExpr = InternalFunctions.ValueTypeDeepCopyIfRequired(e.Type, () => (Expr)this.Visit(expr));
var int2bool = e.Type.IsBoolean() && expr.Type.IsInteger() ? "!!" : "";
var js = "{v:" + int2bool + "expr,_:type}";
var ret = new ExprJsExplicit(ctx, js, e.Type, (deepCopyExpr ?? expr).Named("expr"), eType.Named("type"));
return ret;
}
}
protected override ICode VisitJsExplicit(ExprJsExplicit e)
{
this.HandleExplicitJs(e.JavaScript, e.NamedExprs);
return(e);
}
protected override ICode VisitJsExplicit(ExprJsExplicit e) {
this.HandleExplicitJs(e.JavaScript, e.NamedExprs);
return e;
}
protected override ICode VisitJsExplicit(ExprJsExplicit e) {
this.code.Append(e.JavaScript);
return e;
}
protected override ICode VisitConv(ExprConv e) {
var fromType = e.Expr.Type;
var toType = e.Type;
var fromTypeMetadataType = fromType.MetadataType;
var toTypeMetadataType = toType.MetadataType;
if (e.ForceFromUnsigned) {
switch (fromTypeMetadataType) {
case MetadataType.SByte: fromTypeMetadataType = MetadataType.Byte; break;
case MetadataType.Int16: fromTypeMetadataType = MetadataType.UInt16; break;
case MetadataType.Int32: fromTypeMetadataType = MetadataType.UInt32; break;
case MetadataType.Int64: fromTypeMetadataType = MetadataType.UInt64; break;
case MetadataType.IntPtr: fromTypeMetadataType = MetadataType.UIntPtr; break;
}
}
if (fromTypeMetadataType == MetadataType.Char) {
fromTypeMetadataType = MetadataType.UInt16;
}
if (toTypeMetadataType == MetadataType.Char) {
toTypeMetadataType = MetadataType.UInt16;
}
var fromIdx = indexMap.ValueOrDefault(fromTypeMetadataType, -1);
var toIdx = indexMap.ValueOrDefault(toTypeMetadataType, -1);
if (fromIdx == -1 || toIdx == -1) {
return e.Expr;
}
var ctx = e.Ctx;
var js = jss[fromIdx, toIdx];
if (js != null) {
// In-place conversion
var expr = new ExprJsExplicit(ctx, js, e.Type, e.Expr.Named("e"));
return expr;
} else {
// Call conversion function
var convMi = ((Func<int, int>)InternalFunctions.Conv<int, int>).Method.GetGenericMethodDefinition();
var mConv = ctx.Module.Import(convMi).MakeGeneric(e.Expr.Type, e.Type);
var convCall = new ExprCall(ctx, mConv, null, e.Expr);
return convCall;
}
}