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

Example 26 with Type

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

the class Ast2Class method visitPrimitiveCastExpr.

@Override
public Object visitPrimitiveCastExpr(PrimitiveCastExpr node) {
    ExprNode expr = node.getExpr();
    visit(expr);
    int opc;
    Type ft = expr.getType();
    Type tt = node.getToType();
    opc = getPrimitiveCastOpc(ft, tt);
    if (opc > 0) {
        md.visitInsn(opc);
    }
    return null;
}

Example 27 with Type

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

the class Ast2Class method visitUnaryExpr.

@Override
public Object visitUnaryExpr(UnaryExpr node) {
    Type exprType = node.getExpr().getType();
    org.objectweb.asm.Type t = asmType(exprType);
    visit(node.getExpr());
    switch(node.getOperation()) {
        case UnaryExpr.OPERATION_POS:
            break;
        case UnaryExpr.OPERATION_NEG:
            md.visitInsn(t.getOpcode(INEG));
            break;
        case UnaryExpr.OPERATION_NOT:
            // TODO here I am not sure
            constX(exprType, -1);
            md.visitInsn(t.getOpcode(IXOR));
            break;
        // md.visitInsn(ICONST_M1);
        case UnaryExpr.OPERATION_LOGIC_NOT:
            Label falseLabel = new Label();
            Label stopLabel = new Label();
            md.visitJumpInsn(IFEQ, falseLabel);
            constFalse();
            md.visitJumpInsn(GOTO, stopLabel);
            md.visitLabel(falseLabel);
            constTrue();
            md.visitLabel(stopLabel);
            break;
        default:
            throw new UnsupportedOperationException("unsupported unary operation:" + node.getOperation());
    }
    return null;
}

Example 28 with Type

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

the class Ast2Class method visitReturnStmt.

@Override
public Object visitReturnStmt(ReturnStmt node) {
    int lnsn = RETURN;
    if (node.expr != null) {
        visit(node.expr);
        Type type = node.expr.getType();
        lnsn = asmType(type).getOpcode(IRETURN);
    }
    md.visitInsn(lnsn);
    return null;
}

Example 29 with Type

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

the class Ast2Class method visitExprStmt.

@Override
public Object visitExprStmt(ExprStmt node) {
    visitChildren(node);
    Type type = node.getExpr().getType();
    if (type != null && !Types.VOID_TYPE.equals(type)) {
        pop(type);
    }
    return null;
}

Example 30 with Type

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

the class Ast2Class method typeSignature.

@Nullable
private String typeSignature(Type type) {
    if (type instanceof GenericType) {
        return "T" + type.getName() + ";";
    } else if (type instanceof ClassType) {
        ClassType pt = (ClassType) type;
        String ptypes = "";
        for (Type p : pt.getTypeArguments()) {
            ptypes += typeSignature(p);
        }
        if (!ptypes.isEmpty())
            ptypes = "<" + ptypes + ">";
        return "L" + pt.getClassNode().name.replace('.', '/') + ptypes + ";";
    } else if (type instanceof PrimitiveType) {
        return getTypeDescriptor(type);
    } else if (type instanceof ArrayType) {
        return "[" + typeSignature(((ArrayType) type).getComponentType());
    } else if (type instanceof WildcardType) {
        WildcardType wt = (WildcardType) type;
        Type[] lbs = wt.getLowerBounds();
        Type[] ubs = wt.getUpperBounds();
        if (lbs.length > 0) {
            // FIXME handle other lowerBounds
            return "-" + typeSignature(lbs[0]);
        } else if (ubs.length > 0) {
            // FIXME handle other lowerBounds
            return "+" + typeSignature(ubs[0]);
        } else {
            return "*";
        }
    } else {
        throw Exceptions.unsupportedTypeException(type);
    }
}