Examples with MethodNotFoundException kalang.MethodNotFoundException used on opensource projects

Example 1 with MethodNotFoundException

use of kalang.MethodNotFoundException in project kalang by kasonyang.

the class AstBuilder method visitMapExpr.

@Override
public MultiStmtExpr visitMapExpr(KalangParser.MapExprContext ctx) {
    Type keyType = ctx.keyType != null ? requireClassType(ctx.keyType) : Types.getRootType();
    Type valueType = ctx.valueType != null ? requireClassType(ctx.valueType) : Types.getRootType();
    if (keyType == null || valueType == null)
        return null;
    LocalVarNode vo = declareTempLocalVar(Types.getClassType(Types.getMapImplClassType().getClassNode(), new Type[] { keyType, valueType }));
    VarDeclStmt vds = new VarDeclStmt(vo);
    NewObjectExpr newExpr;
    try {
        newExpr = new NewObjectExpr(Types.getMapImplClassType());
    } catch (MethodNotFoundException | AmbiguousMethodException ex) {
        throw Exceptions.unexceptedException(ex);
    }
    List<Statement> stmts = new LinkedList<>();
    stmts.add(vds);
    stmts.add(new ExprStmt(new AssignExpr(new VarExpr(vo), newExpr)));
    VarExpr ve = new VarExpr(vo);
    List<TerminalNode> ids = ctx.Identifier();
    for (int i = 0; i < ids.size(); i++) {
        ExpressionContext e = ctx.expression(i);
        ExprNode v = (ExprNode) visit(e);
        ConstExpr k = new ConstExpr(ctx.Identifier(i).getText());
        ExprNode[] args = new ExprNode[] { k, v };
        InvocationExpr iv;
        try {
            iv = ObjectInvokeExpr.create(ve, "put", args);
        } catch (MethodNotFoundException | AmbiguousMethodException ex) {
            throw Exceptions.unexceptedException(ex);
        }
        ExprStmt es = new ExprStmt(iv);
        stmts.add(es);
    }
    MultiStmtExpr mse = new MultiStmtExpr(stmts, ve);
    mapAst(mse, ctx);
    return mse;
}

Example 2 with MethodNotFoundException

use of kalang.MethodNotFoundException 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 MethodNotFoundException

use of kalang.MethodNotFoundException in project kalang by kasonyang.

the class AstBuilder method getImplicitInvokeExpr.

@Nullable
private ExprNode getImplicitInvokeExpr(String methodName, ExprNode[] args, ParserRuleContext ctx) {
    ExprNode expr = null;
    try {
        ObjectType clazzType = getThisType();
        InvocationExpr.MethodSelection ms = InvocationExpr.applyMethod(clazzType, methodName, args, clazzType.getMethodDescriptors(thisClazz, true, true));
        if (Modifier.isStatic(ms.selectedMethod.getModifier())) {
            expr = new StaticInvokeExpr(new ClassReference(thisClazz), ms.selectedMethod, ms.appliedArguments);
        } else {
            expr = new ObjectInvokeExpr(new ThisExpr(getThisType()), ms.selectedMethod, ms.appliedArguments);
        }
    } catch (MethodNotFoundException ex) {
        if (args.length == 1 && (methodName.equals("print") || methodName.equals("println"))) {
            try {
                StaticFieldExpr fieldExpr = StaticFieldExpr.create(new ClassReference(Types.requireClassType("java.lang.System").getClassNode()), "out", null);
                expr = getObjectInvokeExpr(fieldExpr, methodName, args, ctx);
            } catch (FieldNotFoundException fnfEx) {
                throw Exceptions.unexceptedException(fnfEx);
            }
        }
        if (expr == null) {
            this.methodNotFound(ctx.getStart(), className, methodName, args);
            expr = new UnknownInvocationExpr(null, methodName, args);
        }
    } catch (AmbiguousMethodException ex) {
        methodIsAmbiguous(ctx.start, ex);
        return null;
    }
    mapAst(expr, ctx);
    return expr;
}

Example 4 with MethodNotFoundException

use of kalang.MethodNotFoundException in project kalang by kasonyang.

the class AstBuilder method visitMethods.

private void visitMethods(ClassNode clazz) {
    thisClazz = clazz;
    for (MethodNode m : thisClazz.getDeclaredMethodNodes()) {
        BlockStmt mbody = m.getBody();
        StatContext[] stats = classNodeMetaBuilder.getStatContexts(m);
        if (stats != null) {
            method = m;
            returned = false;
            visitBlockStmt(stats, mbody);
            boolean needReturn = (m.getType() != null && !m.getType().equals(Types.VOID_TYPE));
            if (m.getBody() != null && needReturn && !returned) {
                this.diagnosisReporter.report(Diagnosis.Kind.ERROR, "Missing return statement in method:" + MethodUtil.toString(method), classNodeMetaBuilder.getMethodDeclContext(m));
            }
            new InitializationAnalyzer(compilationUnit, astLoader).check(clazz, m);
        }
        if (AstUtil.isConstructor(m)) {
            @SuppressWarnings("null") List<Statement> bodyStmts = mbody.statements;
            if (!AstUtil.hasConstructorCallStatement(bodyStmts)) {
                try {
                    bodyStmts.add(0, AstUtil.createDefaultSuperConstructorCall(thisClazz));
                } catch (MethodNotFoundException | AmbiguousMethodException ex) {
                    diagnosisReporter.report(Diagnosis.Kind.ERROR, "default constructor not found", classNodeMetaBuilder.getMethodDeclContext(m));
                }
            }
            // check super()
            int stmtsSize = mbody.statements.size();
            assert stmtsSize > 0;
            Statement firstStmt = mbody.statements.get(0);
            if (!AstUtil.isConstructorCallStatement(firstStmt)) {
                // TODO handle error
                throw new RuntimeException("missing constructor call");
            }
            mbody.statements.addAll(1, this.thisClazz.initStmts);
        }
    }
    for (ClassNode c : clazz.classes) {
        this.visitMethods(c);
    }
}

Example 5 with MethodNotFoundException

use of kalang.MethodNotFoundException in project kalang by kasonyang.

the class InvocationExpr method applyMethod.

/**
 * select the method for invocation expression,and apply ast transform if needed
 * @param clazz
 * @param methodName
 * @param args
 * @param candidates
 * @return the selected method,or null
 * @throws MethodNotFoundException
 * @throws AmbiguousMethodException
 */
public static MethodSelection applyMethod(ObjectType clazz, String methodName, @Nullable ExprNode[] args, ExecutableDescriptor[] candidates) throws MethodNotFoundException, AmbiguousMethodException {
    if (args == null)
        args = new ExprNode[0];
    Type[] types = AstUtil.getExprTypes(args);
    if (types == null)
        types = new Type[0];
    List<ExecutableDescriptor> selectedList = methodSelector.select(candidates, methodName, types);
    if (selectedList.isEmpty()) {
        throw new MethodNotFoundException(clazz, methodName);
    } else if (selectedList.size() > 1) {
        throw new AmbiguousMethodException(selectedList);
    }
    ExecutableDescriptor md = selectedList.get(0);
    ExprNode[] matchedParam = AstUtil.matchTypes(args, types, md.getParameterTypes());
    Objects.requireNonNull(matchedParam);
    return new MethodSelection(md, matchedParam);
}