Examples with ListBuffer org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer used on opensource projects

Example 31 with ListBuffer

use of org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer in project ceylon by eclipse.

the class CeylonVisitor method transformConstructor.

private void transformConstructor(Tree.Declaration ctor, Tree.ParameterList parameterList, Tree.DelegatedConstructor delegatedCtor, Tree.Block block, Constructor ctorModel, Map<Constructor, CtorDelegation> delegates) {
    TransformationPlan plan = gen.errors().hasDeclarationAndMarkBrokenness(ctor);
    if (plan instanceof Drop) {
        return;
    }
    if (parameterList != null) {
        for (Parameter param : parameterList.getModel().getParameters()) {
            FunctionOrValue model = param.getModel();
            if (Naming.aliasConstructorParameterName(model)) {
                gen.naming.addVariableSubst(model, Naming.suffixName(Suffix.$param$, param.getName()));
            }
        }
    }
    final CtorDelegation delegation = delegates.get(ctorModel);
    ListBuffer<JCStatement> stmts = new ListBuffer<JCStatement>();
    boolean delegatedTo = CtorDelegation.isDelegatedTo(delegates, ctorModel);
    if (delegatedTo && !ctorModel.isAbstract()) {
        Tree.InvocationExpression chainedCtorInvocation;
        if (delegatedCtor != null) {
            chainedCtorInvocation = delegatedCtor.getInvocationExpression();
        } else {
            chainedCtorInvocation = null;
        }
        // We need to generate $delegation$ delegation constructor
        makeDelegationConstructor(ctor, parameterList, delegatedCtor, block, ctorModel, delegation, chainedCtorInvocation);
        JCStatement delegateExpr;
        if (chainedCtorInvocation != null) {
            delegateExpr = gen.expressionGen().transformConstructorDelegation(chainedCtorInvocation, delegation.isSelfDelegation() ? delegation : new CtorDelegation(ctorModel, ctorModel), chainedCtorInvocation, classBuilder, !delegation.isSelfDelegation());
        } else {
            // In this case there is no extends clause in the source code
            // so we have to construct the argument list "by hand".
            ListBuffer<JCExpression> arguments = new ListBuffer<JCExpression>();
            for (TypeParameter tp : ((Class) delegation.getConstructor().getContainer()).getTypeParameters()) {
                arguments.add(gen.makeReifiedTypeArgument(tp.getType()));
            }
            arguments.add(gen.naming.makeNamedConstructorName(delegation.getConstructor(), true));
            for (Parameter p : delegation.getConstructor().getFirstParameterList().getParameters()) {
                arguments.add(gen.naming.makeName(p.getModel(), Naming.NA_IDENT));
            }
            delegateExpr = gen.make().Exec(gen.make().Apply(null, gen.naming.makeThis(), arguments.toList()));
        }
        stmts.add(delegateExpr);
    } else if (delegatedCtor != null) {
        stmts.add(gen.expressionGen().transformConstructorDelegation(delegatedCtor, delegation, delegatedCtor.getInvocationExpression(), classBuilder, false));
    } else {
    // no explicit extends clause
    }
    final boolean addBody;
    if (delegatedTo && (delegation.isAbstractSelfOrSuperDelegation())) {
        if (delegation.getConstructor().isAbstract()) {
            stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(null, ctorModel));
            addBody = true;
        } else if (delegation.getExtendingConstructor() != null && delegation.getExtendingConstructor().isAbstract()) {
            stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
            addBody = true;
        } else {
            addBody = false;
        }
    } else if (delegation.isAbstractSelfDelegation()) {
        // delegating to abstract
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
        addBody = true;
    } else if (delegation.isConcreteSelfDelegation()) {
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(delegation.getExtendingConstructor(), ctorModel));
        addBody = true;
    } else {
        // super delegation
        stmts.addAll(classBuilder.getInitBuilder().copyStatementsBetween(null, ctorModel));
        addBody = true;
    }
    if (ctorModel.isAbstract() && !delegatedTo) {
        stmts.add(gen.make().Throw(gen.make().NewClass(null, List.<JCExpression>nil(), gen.make().QualIdent(gen.syms().ceylonUninvokableErrorType.tsym), List.<JCExpression>nil(), null)));
    }
    List<JCStatement> following = ctorModel.isAbstract() ? List.<JCStatement>nil() : classBuilder.getInitBuilder().copyStatementsBetween(ctorModel, null);
    if (addBody) {
        if (following.isEmpty()) {
            stmts.addAll(gen.statementGen().transformBlock(block));
        } else {
            Name label = gen.naming.aliasName(Naming.Unfix.$return$.toString());
            Transformer<JCStatement, Return> prev = gen.statementGen().returnTransformer(gen.statementGen().new ConstructorReturnTransformer(label));
            try {
                stmts.add(gen.make().Labelled(label, gen.make().DoLoop(gen.make().Block(0, gen.statementGen().transformBlock(block, true)), gen.make().Literal(false))));
            } finally {
                gen.statementGen().returnTransformer(prev);
            }
        }
    }
    ThrowVisitor visitor = new ThrowVisitor();
    block.visit(visitor);
    if (!visitor.getDefinitelyReturnsViaThrow()) {
        stmts.addAll(following);
    }
    String ctorName = !Decl.isDefaultConstructor(ctorModel) ? gen.naming.makeTypeDeclarationName(ctorModel) : null;
    classBuilder.defs(gen.classGen().makeNamedConstructor(ctor, parameterList, ctorModel, classBuilder, Strategy.generateInstantiator(ctorModel), gen.classGen().modifierTransformation().constructor(ctorModel), false, ctorName, stmts.toList(), DeclNameFlag.QUALIFIED));
}

Example 32 with ListBuffer

use of org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer in project ceylon by eclipse.

the class ClassDefinitionBuilder method refineReifiedType.

public ClassDefinitionBuilder refineReifiedType(Type thisType) {
    // init: $type$impl.$refine(tp1, tp2...)
    Interface iface = (Interface) thisType.getDeclaration();
    String companion = gen.naming.getCompanionFieldName(iface);
    ListBuffer<JCExpression> typeParameters = new ListBuffer<JCExpression>();
    for (Type tp : thisType.getTypeArgumentList()) {
        typeParameters.add(gen.makeReifiedTypeArgument(tp));
    }
    JCExpression refine = gen.make().Apply(null, gen.makeSelect(companion, gen.naming.getRefineTypeParametersMethodName()), typeParameters.toList());
    initBuilder.init(gen.make().Exec(refine));
    return this;
}

Example 33 with ListBuffer

use of org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer in project ceylon by eclipse.

the class NamedArgumentInvocation method makeVarRefArgumentList.

// Make a list of ($arg0, $arg1, ... , $argN)
// or ($arg$this$, $arg0, $arg1, ... , $argN)
private List<JCExpression> makeVarRefArgumentList(Parameter param) {
    ListBuffer<JCExpression> names = new ListBuffer<JCExpression>();
    if (!Strategy.defaultParameterMethodStatic(getPrimaryDeclaration()) && Strategy.defaultParameterMethodTakesThis(param.getModel())) {
        names.append(varBaseName.suffixedBy(Suffix.$argthis$).makeIdent());
    }
    // put all the required reified type args too
    Reference ref = gen.resolveAliasesForReifiedTypeArguments(producedReference);
    int tpCount = gen.getTypeParameters(ref).size();
    for (int tpIndex = 0; tpIndex < tpCount; tpIndex++) {
        names.append(reifiedTypeArgName(tpIndex).makeIdent());
    }
    final int parameterIndex = parameterIndex(param);
    for (int ii = 0; ii < parameterIndex; ii++) {
        names.append(this.argsNamesByIndex.get(ii).makeIdent());
    }
    return names.toList();
}

Example 34 with ListBuffer

use of org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer in project ceylon by eclipse.

the class Locations method getPathEntries.

/**
 * Split a path into its elements. If emptyPathDefault is not null, all
 * empty elements in the path, including empty elements at either end of
 * the path, will be replaced with the value of emptyPathDefault.
 * @param path The path to be split
 * @param emptyPathDefault The value to substitute for empty path elements,
 *  or null, to ignore empty path elements
 * @return The elements of the path
 */
private static Iterable<File> getPathEntries(String path, File emptyPathDefault) {
    ListBuffer<File> entries = new ListBuffer<File>();
    int start = 0;
    while (start <= path.length()) {
        int sep = path.indexOf(File.pathSeparatorChar, start);
        if (sep == -1)
            sep = path.length();
        if (start < sep)
            entries.add(new File(path.substring(start, sep)));
        else if (emptyPathDefault != null)
            entries.add(emptyPathDefault);
        start = sep + 1;
    }
    return entries;
}

Example 35 with ListBuffer

use of org.eclipse.ceylon.langtools.tools.javac.util.ListBuffer in project ceylon by eclipse.

the class JavacPathFileManager method getClassLoader.

@Override
public ClassLoader getClassLoader(Location location) {
    nullCheck(location);
    Iterable<? extends Path> path = getLocation(location);
    if (path == null)
        return null;
    ListBuffer<URL> lb = new ListBuffer<URL>();
    for (Path p : path) {
        try {
            lb.append(p.toUri().toURL());
        } catch (MalformedURLException e) {
            throw new AssertionError(e);
        }
    }
    return getClassLoader(lb.toArray(new URL[lb.size()]));
}