Examples with Parameter org.eclipse.ceylon.model.typechecker.model.Parameter used on opensource projects

Example 11 with Parameter

use of org.eclipse.ceylon.model.typechecker.model.Parameter in project ceylon by eclipse.

the class ExpressionVisitor method createAnonymousFunctionParameters.

/**
 * Iterate over the arguments of an invocation
 * looking for anonymous functions with missing
 * parameter lists, and create the parameter
 * lists from the type of the parameters to
 * which the arguments are assigned.
 */
private void createAnonymousFunctionParameters(Tree.InvocationExpression that) {
    Tree.Primary primary = that.getPrimary();
    Tree.PositionalArgumentList argList = that.getPositionalArgumentList();
    if (argList != null && primary instanceof Tree.MemberOrTypeExpression) {
        Tree.MemberOrTypeExpression mte = (Tree.MemberOrTypeExpression) primary;
        List<Tree.PositionalArgument> args = argList.getPositionalArguments();
        Declaration dec = mte.getDeclaration();
        if (dec instanceof Functional) {
            Functional fun = (Functional) dec;
            ParameterList paramList = fun.getFirstParameterList();
            if (paramList != null) {
                List<Parameter> params = paramList.getParameters();
                for (int i = 0, asz = args.size(), psz = params.size(); i < asz && i < psz; i++) {
                    Tree.PositionalArgument arg = args.get(i);
                    Parameter param = params.get(i);
                    if (arg instanceof Tree.ListedArgument && param != null) {
                        Tree.ListedArgument larg = (Tree.ListedArgument) arg;
                        List<Parameter> fpl = inferrableParameters(param);
                        Tree.Expression ex = larg.getExpression();
                        if (ex != null && fpl != null) {
                            Tree.Term term = ex.getTerm();
                            if (term instanceof Tree.FunctionArgument) {
                                Tree.FunctionArgument anon = (Tree.FunctionArgument) term;
                                createAnonymousFunctionParameters(fpl, term, anon);
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 12 with Parameter

use of org.eclipse.ceylon.model.typechecker.model.Parameter in project ceylon by eclipse.

the class ExpressionVisitor method checkForMissingNamedParameters.

private void checkForMissingNamedParameters(ParameterList pl, Reference pr, Tree.NamedArgumentList nal, Set<Parameter> foundParameters) {
    StringBuilder missing = null;
    int count = 0;
    for (Parameter p : pl.getParameters()) {
        if (!foundParameters.contains(p) && !p.isDefaulted() && (!p.isSequenced() || p.isAtLeastOne())) {
            count++;
            Type type = pr.getTypedParameter(p).getFullType();
            if (missing == null) {
                missing = new StringBuilder();
            } else {
                missing.append(", ");
            }
            if (type != null) {
                missing.append(type.asString(unit)).append(" ");
            }
            missing.append(p.getName());
        }
    }
    if (count == 1) {
        nal.addError("missing named argument to required parameter '" + missing + "' of '" + pr.getDeclaration().getName(unit) + "'", 11000);
    } else if (count > 1) {
        nal.addError("missing named arguments to " + count + " required parameters '" + missing + "' of '" + pr.getDeclaration().getName(unit) + "'", 11000);
    }
}

Example 13 with Parameter

use of org.eclipse.ceylon.model.typechecker.model.Parameter in project ceylon by eclipse.

the class ExpressionVisitor method checkNamedArguments.

private void checkNamedArguments(ParameterList pl, Reference pr, Tree.NamedArgumentList nal) {
    Set<Parameter> foundParameters = new HashSet<Parameter>();
    List<Tree.NamedArgument> na = nal.getNamedArguments();
    for (Tree.NamedArgument a : na) {
        checkNamedArg(a, pl, pr, foundParameters);
    }
    Tree.SequencedArgument sa = nal.getSequencedArgument();
    if (sa != null) {
        checkSequencedArg(sa, pl, pr, foundParameters);
    } else {
        Parameter param = getUnspecifiedParameter(pr, pl, foundParameters);
        if (param != null && !unit.isNonemptyIterableType(param.getType())) {
            foundParameters.add(param);
        }
    }
    checkForMissingNamedParameters(pl, pr, nal, foundParameters);
}

Example 14 with Parameter

use of org.eclipse.ceylon.model.typechecker.model.Parameter in project ceylon by eclipse.

the class ExpressionVisitor method checkPositionalArguments.

private void checkPositionalArguments(ParameterList pl, Reference pr, Tree.PositionalArgumentList pal, Tree.InvocationExpression that) {
    List<Tree.PositionalArgument> args = pal.getPositionalArguments();
    List<Parameter> params = pl.getParameters();
    Declaration target = pr.getDeclaration();
    int argCount = args.size();
    int paramsSize = params.size();
    for (int i = 0; i < paramsSize; i++) {
        Parameter param = params.get(i);
        if (i >= argCount) {
            if (isRequired(param)) {
                Node errorNode = that instanceof Tree.Annotation && args.isEmpty() ? that : pal;
                StringBuilder message = new StringBuilder();
                if (i + 1 < paramsSize && isRequired(params.get(i + 1))) {
                    message.append("missing arguments to required parameters '");
                    appendParam(pr, param, message);
                    int count = 1;
                    for (int j = i + 1; j < paramsSize; j++) {
                        Parameter p = params.get(j);
                        if (p.isDefaulted() || p.isSequenced() && !p.isAtLeastOne()) {
                            break;
                        }
                        message.append(", ");
                        appendParam(pr, p, message);
                        count++;
                    }
                    message.append("'").insert(20, " " + count);
                } else {
                    message.append("missing argument to required parameter '");
                    appendParam(pr, param, message);
                    message.append("'");
                }
                message.append(" of '").append(target.getName(unit)).append("'");
                errorNode.addError(message.toString());
                break;
            }
        } else {
            Tree.PositionalArgument arg = args.get(i);
            Type pt = param.getType();
            if (!dynamic && isTypeUnknown(pt)) {
                arg.addError("parameter type could not be determined: " + paramdesc(param) + getTypeUnknownError(pt));
            }
            if (arg instanceof Tree.SpreadArgument) {
                checkSpreadArgument(pr, param, arg, (Tree.SpreadArgument) arg, params.subList(i, paramsSize));
                break;
            } else if (arg instanceof Tree.Comprehension) {
                if (param.isSequenced()) {
                    checkComprehensionPositionalArgument(param, pr, (Tree.Comprehension) arg, param.isAtLeastOne());
                } else {
                    arg.addError("not a variadic parameter: parameter '" + param.getName() + "' of '" + target.getName() + "'");
                }
                break;
            } else {
                if (param.isSequenced()) {
                    checkSequencedPositionalArgument(param, pr, args.subList(i, argCount));
                    // Note: early return!
                    return;
                } else {
                    checkPositionalArgument(param, pr, (Tree.ListedArgument) arg);
                }
            }
        }
    }
    for (int i = paramsSize; i < argCount; i++) {
        Tree.PositionalArgument arg = args.get(i);
        if (arg instanceof Tree.SpreadArgument) {
            if (unit.isEmptyType(arg.getTypeModel())) {
                continue;
            }
        }
        arg.addError("no matching parameter declared by '" + target.getName(unit) + "': '" + target.getName(unit) + "' has " + paramsSize + " parameters", 2000);
    }
    checkJavaAnnotationElements(args, params, target);
}

Example 15 with Parameter

use of org.eclipse.ceylon.model.typechecker.model.Parameter in project ceylon by eclipse.

the class ExpressionVisitor method refineMethod.

private void refineMethod(Tree.SpecifierStatement that) {
    Function refinedMethod = (Function) that.getRefined();
    Function method = (Function) that.getDeclaration();
    ClassOrInterface ci = (ClassOrInterface) method.getContainer();
    Declaration root = method.getRefinedDeclaration();
    TypeDeclaration td = (TypeDeclaration) root.getContainer();
    List<Declaration> interveningRefinements = getInterveningRefinements(method, root, ci, td);
    if (interveningRefinements.isEmpty()) {
        that.getBaseMemberExpression().addError("shortcut refinement does not exactly refine any overloaded inherited member");
    } else {
        Reference refinedProducedReference = accountForIntermediateRefinements(that, refinedMethod, method, ci, interveningRefinements);
        List<Tree.ParameterList> parameterLists;
        Tree.Term me = that.getBaseMemberExpression();
        if (me instanceof Tree.ParameterizedExpression) {
            Tree.ParameterizedExpression pe = (Tree.ParameterizedExpression) me;
            parameterLists = pe.getParameterLists();
        } else {
            parameterLists = emptyList();
        }
        List<ParameterList> refinedParamLists = refinedMethod.getParameterLists();
        List<ParameterList> methodParamLists = method.getParameterLists();
        Map<TypeParameter, Type> subs = substitutions(refinedMethod, method);
        for (int i = 0; i < refinedParamLists.size() && i < methodParamLists.size(); i++) {
            ParameterList refinedParameters = refinedParamLists.get(i);
            ParameterList parameters = methodParamLists.get(i);
            Tree.ParameterList parameterList = parameterLists.size() <= i ? null : parameterLists.get(i);
            List<Parameter> rps = refinedParameters.getParameters();
            for (int j = 0; j < rps.size(); j++) {
                Parameter refinedParameter = rps.get(j);
                Type refinedParameterType = refinedProducedReference.getTypedParameter(refinedParameter).getFullType().substitute(subs, null);
                Parameter parameter;
                if (parameterList == null || parameterList.getParameters().size() <= j) {
                    parameter = parameters.getParameters().get(j);
                    parameter.getModel().setType(refinedParameterType);
                    parameter.setSequenced(refinedParameter.isSequenced());
                } else {
                    Tree.Parameter param = parameterList.getParameters().get(j);
                    parameter = param.getParameterModel();
                    Type parameterType = parameter.getModel().getTypedReference().getFullType();
                    Node typeNode = param;
                    if (param instanceof Tree.ParameterDeclaration) {
                        Tree.ParameterDeclaration pd = (Tree.ParameterDeclaration) param;
                        Tree.Type type = pd.getTypedDeclaration().getType();
                        if (type != null) {
                            typeNode = type;
                        }
                    }
                    checkIsExactlyIgnoringNull(refinedParameters.isNamedParametersSupported(), parameterType, refinedParameterType, typeNode, "type of parameter '" + parameter.getName() + "' of '" + method.getName() + "' declared by '" + ci.getName() + "' is different to type of corresponding parameter " + message(refinedMethod, refinedParameter), 9200);
                    if (refinedParameter.isSequenced() && !parameter.isSequenced()) {
                        param.addError("parameter must be variadic: parameter " + message(refinedMethod, refinedParameter) + " is variadic");
                    }
                    if (!refinedParameter.isSequenced() && parameter.isSequenced()) {
                        param.addError("parameter may not be variadic: parameter " + message(refinedMethod, refinedParameter) + " is not variadic");
                    }
                }
            }
        }
    }
}