Examples with GenericType kalang.core.GenericType used on opensource projects

Example 1 with GenericType

use of kalang.core.GenericType in project kalang by kasonyang.

the class Ast2Class method classSignature.

@Nullable
private String classSignature(ClassNode c) {
    GenericType[] genericTypes = c.getGenericTypes();
    if (genericTypes == null || genericTypes.length == 0) {
        return null;
    }
    String gnrTypeStr = "";
    for (GenericType t : genericTypes) {
        gnrTypeStr += t.getName() + ":" + "Ljava/lang/Object;";
    }
    String superTypeStr = "";
    if (c.getSuperType() != null)
        superTypeStr += typeSignature(c.getSuperType());
    for (ObjectType itf : c.getInterfaces()) {
        superTypeStr += typeSignature(itf);
    }
    return "<" + gnrTypeStr + ">" + superTypeStr;
}

Example 2 with GenericType

use of kalang.core.GenericType in project kalang by kasonyang.

the class AstBuilder method getObjectInvokeExpr.

@Nullable
private ExprNode getObjectInvokeExpr(ExprNode target, String methodName, ExprNode[] args, ParserRuleContext ctx) {
    if ("<init>".equals(methodName)) {
        throw Exceptions.unexceptedException("Don't get constructor by this method.");
    }
    Type targetType = target.getType();
    if (!(targetType instanceof ObjectType)) {
        handleSyntaxError("class type required.", ctx);
        return null;
    }
    ObjectType targetClassType = (ObjectType) targetType;
    if (targetClassType.getNullable() == NullableKind.NULLABLE) {
        handleSyntaxError("expression may be null", ctx);
        return null;
    }
    ExprNode expr;
    try {
        ObjectInvokeExpr invoke = ObjectInvokeExpr.create(target, methodName, args, thisClazz);
        if (invoke.getMethod().getMethodNode().getType() instanceof GenericType) {
            Type invokeType = invoke.getType();
            if (invokeType instanceof ObjectType) {
                expr = new CastExpr(invokeType, invoke);
            } else {
                expr = invoke;
            }
        } else {
            expr = invoke;
        }
    } catch (MethodNotFoundException ex) {
        methodNotFound(ctx.start, className, methodName, args);
        expr = new UnknownInvocationExpr(target, methodName, args);
    } catch (AmbiguousMethodException ex) {
        methodIsAmbiguous(ctx.start, ex);
        return null;
    }
    mapAst(expr, ctx);
    return expr;
}

Example 3 with GenericType

use of kalang.core.GenericType in project kalang by kasonyang.

the class ClassNodeMetaBuilder method visitClassDef.

@Override
public Object visitClassDef(KalangParser.ClassDefContext ctx) {
    thisClazz.annotations.addAll(astBuilder.getAnnotations(ctx.annotation()));
    thisClazz.modifier = astBuilder.parseModifier(ctx.varModifier());
    List<Token> gnrTypes = ctx.genericTypes;
    if (gnrTypes != null && !gnrTypes.isEmpty()) {
        for (Token g : gnrTypes) {
            // TODO suport generic type bounds in syntax
            GenericType gt = new GenericType(g.getText(), Types.getRootType(), null, NullableKind.NONNULL);
            thisClazz.declareGenericType(gt);
        }
    }
    ObjectType superType = null;
    if (ctx.parentClass != null) {
        ObjectType parentClass = astBuilder.parseClassType(ctx.parentClass);
        if (parentClass != null) {
            superType = parentClass;
        }
    } else {
        superType = Types.getRootType();
    }
    if (Modifier.isInterface(thisClazz.modifier)) {
        // TODO update syntax to support:interface extends T1,T2...
        thisClazz.addInterface(superType);
    } else {
        thisClazz.setSuperType(superType);
    }
    if (ctx.interfaces != null && ctx.interfaces.size() > 0) {
        for (KalangParser.ClassTypeContext itf : ctx.interfaces) {
            ObjectType itfClz = astBuilder.parseClassType(itf);
            if (itfClz != null) {
                thisClazz.addInterface(itfClz);
            }
        }
    }
    if (this.isDeclaringNonStaticInnerClass()) {
        ClassNode parentClass = thisClazz.enclosingClass;
        if (parentClass == null) {
            throw Exceptions.unexceptedValue(parentClass);
        }
        thisClazz.createField(Types.getClassType(parentClass), "this$0", Modifier.PRIVATE | ModifierConstant.SYNTHETIC);
    }
    visit(ctx.classBody());
    if (!ModifierUtil.isInterface(thisClazz.modifier) && !AstUtil.containsConstructor(thisClazz) && !AstUtil.createEmptyConstructor(thisClazz)) {
        this.diagnosisReporter.report(Diagnosis.Kind.ERROR, "failed to create constructor with no parameters", ctx);
    }
    MethodNode[] methods = thisClazz.getDeclaredMethodNodes();
    for (int i = 0; i < methods.length; i++) {
        MethodNode node = methods[i];
        BlockStmt body = node.getBody();
        if (body != null) {
            if (AstUtil.isConstructor(node)) {
                // constructor
                if (this.isDeclaringNonStaticInnerClass()) {
                    ClassNode enclosingClass = thisClazz.enclosingClass;
                    if (enclosingClass == null) {
                        throw Exceptions.unexceptedValue(enclosingClass);
                    }
                    ParameterNode outerInstanceParam = node.createParameter(0, Types.getClassType(enclosingClass), "this$0");
                    ExprNode parentFieldExpr = astBuilder.getObjectFieldExpr(new ThisExpr(Types.getClassType(thisClazz)), "this$0", ParserRuleContext.EMPTY);
                    if (parentFieldExpr == null) {
                        throw Exceptions.unexceptedValue(parentFieldExpr);
                    }
                    body.statements.add(1, new ExprStmt(new AssignExpr((AssignableExpr) parentFieldExpr, new ParameterExpr(outerInstanceParam))));
                }
            }
        }
    }
    for (FieldNode fieldNode : thisClazz.getFields()) {
        int mdf = fieldNode.modifier;
        if (!AstUtil.hasGetter(thisClazz, fieldNode)) {
            AstUtil.createGetter(thisClazz, fieldNode, mdf);
        }
        if (!AstUtil.hasSetter(thisClazz, fieldNode)) {
            AstUtil.createSetter(thisClazz, fieldNode, mdf);
        }
        fieldNode.modifier = ModifierUtil.setPrivate(mdf);
    }
    return null;
}

Example 4 with GenericType

use of kalang.core.GenericType in project kalang by kasonyang.

the class JvmClassNode method transType.

// TODO why transType could be null?
@Nullable
private Type transType(java.lang.reflect.Type t, Map<TypeVariable, GenericType> genericTypes) {
    if (t instanceof TypeVariable) {
        GenericType vt = genericTypes.get((TypeVariable) t);
        // FIXME it may be null if TypeVariable comes from method
        if (vt != null) {
            return vt;
        }
        return null;
    } else if (t instanceof java.lang.reflect.ParameterizedType) {
        java.lang.reflect.ParameterizedType pt = (java.lang.reflect.ParameterizedType) t;
        Type rawType = transType(pt.getRawType(), genericTypes);
        if (!(rawType instanceof ObjectType)) {
            return null;
        }
        java.lang.reflect.Type[] typeArgs = pt.getActualTypeArguments();
        Type[] gTypes = transType(typeArgs, genericTypes);
        if (gTypes == null) {
            return null;
        }
        return Types.getClassType(((ObjectType) rawType).getClassNode(), gTypes);
    } else if (t instanceof java.lang.reflect.WildcardType) {
        java.lang.reflect.WildcardType wt = (java.lang.reflect.WildcardType) t;
        Type[] upperBounds = transType(wt.getUpperBounds(), genericTypes);
        if (upperBounds == null) {
            return null;
        }
        Type[] lowerBounds = transType(wt.getLowerBounds(), genericTypes);
        if (lowerBounds == null) {
            return null;
        }
        return new WildcardType(upperBounds, lowerBounds);
    } else if (t instanceof GenericArrayType) {
        GenericArrayType gt = (GenericArrayType) t;
        Type ct = transType(gt.getGenericComponentType(), genericTypes);
        if (ct == null) {
            return null;
        }
        return Types.getArrayType(ct, NullableKind.NONNULL);
    } else if (t instanceof Class) {
        Class type = (Class) t;
        if (type.isPrimitive()) {
            return Types.getPrimitiveType(type.getTypeName());
        } else if (type.isArray()) {
            Type ct = transType(type.getComponentType(), genericTypes);
            if (ct == null) {
                return null;
            }
            return Types.getArrayType(ct);
        } else {
            try {
                return Types.getClassType(this.astLoader.findAst(type));
            } catch (AstNotFoundException ex) {
                throw new RuntimeException(ex);
            }
        }
    } else {
        return null;
    }
}

Example 5 with GenericType

use of kalang.core.GenericType in project kalang by kasonyang.

the class TypeUtil method equalTypes.

public static boolean equalTypes(Type[] declaredTypes, Type[] argTypes, @Nullable Map<GenericType, Type> genericTypes) {
    if (declaredTypes.length != argTypes.length)
        return false;
    if (declaredTypes.length == 0)
        return true;
    for (int i = 0; i < declaredTypes.length; i++) {
        Type dt = declaredTypes[i];
        if (dt instanceof GenericType) {
            if (genericTypes != null) {
                dt = genericTypes.get((GenericType) dt);
                Objects.requireNonNull(dt);
            }
        }
        if (!equalType(dt, argTypes[i], genericTypes))
            return false;
    }
    return true;
}