private JsExpression CompileImportedTypeCheckCode(IType type, ref JsExpression @this, IRuntimeContext context, bool isTypeIs)
{
var def = type.GetDefinition();
if (def == null)
{
return(null);
}
var ia = AttributeReader.ReadAttribute <ImportedAttribute>(def);
if (ia == null || string.IsNullOrEmpty(ia.TypeCheckCode))
{
return(null);
}
// Can ignore errors here because they are caught by the metadata importer
var method = MetadataUtils.CreateTypeCheckMethod(type, _compilation);
var tokens = InlineCodeMethodCompiler.Tokenize(method, ia.TypeCheckCode, _ => {});
int thisCount = tokens.Count(t => t.Type == InlineCodeToken.TokenType.This);
if (!isTypeIs || thisCount > 0)
{
@this = context.EnsureCanBeEvaluatedMultipleTimes(@this, new JsExpression[0]);
}
return(JsExpression.LogicalAnd(
ReferenceNotEquals(@this, JsExpression.Null, context),
InlineCodeMethodCompiler.CompileExpressionInlineCodeMethodInvocation(method, tokens, @this, EmptyList <JsExpression> .Instance, n => { var t = ReflectionHelper.ParseReflectionName(n).Resolve(_compilation); return t.Kind == TypeKind.Unknown ? JsExpression.Null : InstantiateType(t, context); }, t => InstantiateTypeForUseAsTypeArgumentInInlineCode(t, context), _ => {})));
}
private JsExpression CompileImportedTypeCheckCode(IType type, ref JsExpression @this, IRuntimeContext context, bool isTypeIs) {
var def = type.GetDefinition();
if (def == null)
return null;
var ia = _attributeStore.AttributesFor(def).GetAttribute<ImportedAttribute>();
if (ia == null || string.IsNullOrEmpty(ia.TypeCheckCode))
return null;
// Can ignore errors here because they are caught by the metadata importer
var method = MetadataUtils.CreateTypeCheckMethod(type, _compilation);
var tokens = InlineCodeMethodCompiler.Tokenize(method, ia.TypeCheckCode, _ => {});
int thisCount = tokens.Count(t => t.Type == InlineCodeToken.TokenType.This);
if (!isTypeIs || thisCount > 0)
@this = context.EnsureCanBeEvaluatedMultipleTimes(@this, new JsExpression[0]);
return JsExpression.LogicalAnd(
ReferenceNotEquals(@this, JsExpression.Null, context),
InlineCodeMethodCompiler.CompileExpressionInlineCodeMethodInvocation(method, tokens, @this, EmptyList<JsExpression>.Instance, n => { var t = ReflectionHelper.ParseReflectionName(n).Resolve(_compilation); return t.Kind == TypeKind.Unknown ? JsExpression.Null : InstantiateType(t, context); }, t => InstantiateTypeForUseAsTypeArgumentInInlineCode(t, context), _ => {}));
}
