Examples with IParameterDefinition org.apache.flex.compiler.definitions.IParameterDefinition used on opensource projects

Example 1 with IParameterDefinition

use of org.apache.flex.compiler.definitions.IParameterDefinition in project vscode-nextgenas by BowlerHatLLC.

the class ActionScriptTextDocumentService method signatureHelp.

/**
     * Displays a function's parameters, including which one is currently
     * active. Called automatically by VSCode any time that the user types "(",
     * so be sure to check that a function call is actually happening at the
     * current position.
     */
@Override
public CompletableFuture<SignatureHelp> signatureHelp(TextDocumentPositionParams position) {
    String textDocumentUri = position.getTextDocument().getUri();
    if (!textDocumentUri.endsWith(AS_EXTENSION) && !textDocumentUri.endsWith(MXML_EXTENSION)) {
        //we couldn't find a node at the specified location
        return CompletableFuture.completedFuture(new SignatureHelp(Collections.emptyList(), -1, -1));
    }
    IASNode offsetNode = null;
    IMXMLTagData offsetTag = getOffsetMXMLTag(position);
    if (offsetTag != null) {
        IMXMLTagAttributeData attributeData = getMXMLTagAttributeWithValueAtOffset(offsetTag, currentOffset);
        if (attributeData != null) {
            //some attributes can have ActionScript completion, such as
            //events and properties with data binding
            IClassDefinition tagDefinition = (IClassDefinition) currentProject.resolveXMLNameToDefinition(offsetTag.getXMLName(), offsetTag.getMXMLDialect());
            IDefinition attributeDefinition = currentProject.resolveSpecifier(tagDefinition, attributeData.getShortName());
            if (attributeDefinition instanceof IEventDefinition) {
                IMXMLInstanceNode mxmlNode = (IMXMLInstanceNode) getOffsetNode(position);
                IMXMLEventSpecifierNode eventNode = mxmlNode.getEventSpecifierNode(attributeData.getShortName());
                for (IASNode asNode : eventNode.getASNodes()) {
                    IASNode containingNode = getContainingNodeIncludingStart(asNode, currentOffset);
                    if (containingNode != null) {
                        offsetNode = containingNode;
                    }
                }
                if (offsetNode == null) {
                    offsetNode = eventNode;
                }
            }
        }
    }
    if (offsetNode == null) {
        offsetNode = getOffsetNode(position);
    }
    if (offsetNode == null) {
        //we couldn't find a node at the specified location
        return CompletableFuture.completedFuture(new SignatureHelp(Collections.emptyList(), -1, -1));
    }
    IFunctionCallNode functionCallNode = getAncestorFunctionCallNode(offsetNode);
    IFunctionDefinition functionDefinition = null;
    if (functionCallNode != null) {
        IExpressionNode nameNode = functionCallNode.getNameNode();
        IDefinition definition = nameNode.resolve(currentUnit.getProject());
        if (definition instanceof IFunctionDefinition) {
            functionDefinition = (IFunctionDefinition) definition;
        } else if (definition instanceof IClassDefinition) {
            IClassDefinition classDefinition = (IClassDefinition) definition;
            functionDefinition = classDefinition.getConstructor();
        } else if (nameNode instanceof IIdentifierNode) {
            //special case for super()
            IIdentifierNode identifierNode = (IIdentifierNode) nameNode;
            if (identifierNode.getName().equals(IASKeywordConstants.SUPER)) {
                ITypeDefinition typeDefinition = nameNode.resolveType(currentProject);
                if (typeDefinition instanceof IClassDefinition) {
                    IClassDefinition classDefinition = (IClassDefinition) typeDefinition;
                    functionDefinition = classDefinitionToConstructor(classDefinition);
                }
            }
        }
    }
    if (functionDefinition != null) {
        SignatureHelp result = new SignatureHelp();
        List<SignatureInformation> signatures = new ArrayList<>();
        SignatureInformation signatureInfo = new SignatureInformation();
        signatureInfo.setLabel(getSignatureLabel(functionDefinition));
        List<ParameterInformation> parameters = new ArrayList<>();
        for (IParameterDefinition param : functionDefinition.getParameters()) {
            ParameterInformation paramInfo = new ParameterInformation();
            paramInfo.setLabel(param.getBaseName());
            parameters.add(paramInfo);
        }
        signatureInfo.setParameters(parameters);
        signatures.add(signatureInfo);
        result.setSignatures(signatures);
        result.setActiveSignature(0);
        int index = getFunctionCallNodeArgumentIndex(functionCallNode, offsetNode);
        IParameterDefinition[] params = functionDefinition.getParameters();
        int paramCount = params.length;
        if (paramCount > 0 && index >= paramCount) {
            if (index >= paramCount) {
                IParameterDefinition lastParam = params[paramCount - 1];
                if (lastParam.isRest()) {
                    //functions with rest parameters may accept any
                    //number of arguments, so continue to make the rest
                    //parameter active
                    index = paramCount - 1;
                } else {
                    //if there's no rest parameter, and we're beyond the
                    //final parameter, none should be active
                    index = -1;
                }
            }
        }
        if (index != -1) {
            result.setActiveParameter(index);
        }
        return CompletableFuture.completedFuture(result);
    }
    return CompletableFuture.completedFuture(new SignatureHelp(Collections.emptyList(), -1, -1));
}

Example 2 with IParameterDefinition

use of org.apache.flex.compiler.definitions.IParameterDefinition in project vscode-nextgenas by BowlerHatLLC.

the class ActionScriptTextDocumentService method getSignatureLabel.

private String getSignatureLabel(IFunctionDefinition functionDefinition) {
    StringBuilder labelBuilder = new StringBuilder();
    labelBuilder.append(functionDefinition.getBaseName());
    labelBuilder.append("(");
    IParameterDefinition[] parameters = functionDefinition.getParameters();
    for (int i = 0, count = parameters.length; i < count; i++) {
        if (i > 0) {
            labelBuilder.append(", ");
        }
        IParameterDefinition parameterDefinition = parameters[i];
        if (parameterDefinition.isRest()) {
            labelBuilder.append(IASLanguageConstants.REST);
        }
        labelBuilder.append(parameterDefinition.getBaseName());
        labelBuilder.append(":");
        labelBuilder.append(parameterDefinition.getTypeAsDisplayString());
        if (parameterDefinition.hasDefaultValue()) {
            labelBuilder.append(" = ");
            Object defaultValue = parameterDefinition.resolveDefaultValue(currentProject);
            if (defaultValue instanceof String) {
                labelBuilder.append("\"");
                labelBuilder.append(defaultValue);
                labelBuilder.append("\"");
            } else if (defaultValue != null) {
                if (defaultValue.getClass() == Object.class) {
                    //for some reason, null is some strange random object
                    labelBuilder.append(IASLanguageConstants.NULL);
                } else {
                    //numeric values and everything else should be okay
                    labelBuilder.append(defaultValue);
                }
            } else {
                //I don't know how this might happen, but this is probably
                //a safe fallback value
                labelBuilder.append(IASLanguageConstants.NULL);
            }
        }
    }
    labelBuilder.append(")");
    if (!functionDefinition.isConstructor()) {
        labelBuilder.append(":");
        labelBuilder.append(functionDefinition.getReturnTypeAsDisplayString());
    }
    return labelBuilder.toString();
}

Example 3 with IParameterDefinition

use of org.apache.flex.compiler.definitions.IParameterDefinition in project vscode-nextgenas by BowlerHatLLC.

the class ActionScriptTextDocumentService method getDefinitionDetail.

private String getDefinitionDetail(IDefinition definition) {
    StringBuilder detailBuilder = new StringBuilder();
    if (definition instanceof IClassDefinition) {
        IClassDefinition classDefinition = (IClassDefinition) definition;
        if (classDefinition.isDynamic()) {
            detailBuilder.append(IASKeywordConstants.DYNAMIC);
            detailBuilder.append(" ");
        }
        detailBuilder.append(IASKeywordConstants.CLASS);
        detailBuilder.append(" ");
        if (classDefinition.getPackageName().startsWith(PACKAGE_NAME_NO_IMPORT)) {
            //classes like __AS3__.vec.Vector should not include the
            //package name
            detailBuilder.append(classDefinition.getBaseName());
        } else {
            detailBuilder.append(classDefinition.getQualifiedName());
        }
        IClassDefinition baseClassDefinition = classDefinition.resolveBaseClass(currentProject);
        if (baseClassDefinition != null && !baseClassDefinition.getQualifiedName().equals(IASLanguageConstants.Object)) {
            detailBuilder.append(" ");
            detailBuilder.append(IASKeywordConstants.EXTENDS);
            detailBuilder.append(" ");
            detailBuilder.append(baseClassDefinition.getBaseName());
        }
        IInterfaceDefinition[] interfaceDefinitions = classDefinition.resolveImplementedInterfaces(currentProject);
        if (interfaceDefinitions.length > 0) {
            detailBuilder.append(" ");
            detailBuilder.append(IASKeywordConstants.IMPLEMENTS);
            detailBuilder.append(" ");
            appendInterfaceNamesToDetail(detailBuilder, interfaceDefinitions);
        }
    } else if (definition instanceof IInterfaceDefinition) {
        IInterfaceDefinition interfaceDefinition = (IInterfaceDefinition) definition;
        detailBuilder.append(IASKeywordConstants.INTERFACE);
        detailBuilder.append(" ");
        detailBuilder.append(interfaceDefinition.getQualifiedName());
        IInterfaceDefinition[] interfaceDefinitions = interfaceDefinition.resolveExtendedInterfaces(currentProject);
        if (interfaceDefinitions.length > 0) {
            detailBuilder.append(" ");
            detailBuilder.append(IASKeywordConstants.EXTENDS);
            detailBuilder.append(" ");
            appendInterfaceNamesToDetail(detailBuilder, interfaceDefinitions);
        }
    } else if (definition instanceof IVariableDefinition) {
        IVariableDefinition variableDefinition = (IVariableDefinition) definition;
        IDefinition parentDefinition = variableDefinition.getParent();
        if (parentDefinition instanceof ITypeDefinition) {
            //IVariableDefinition and IFunctionDefinition 
            if (variableDefinition instanceof IAccessorDefinition) {
                detailBuilder.append("(property) ");
            } else if (variableDefinition instanceof IConstantDefinition) {
                detailBuilder.append("(const) ");
            } else {
                detailBuilder.append("(variable) ");
            }
            detailBuilder.append(parentDefinition.getQualifiedName());
            detailBuilder.append(".");
        } else if (parentDefinition instanceof IFunctionDefinition) {
            if (variableDefinition instanceof IParameterDefinition) {
                detailBuilder.append("(parameter) ");
            } else {
                detailBuilder.append("(local ");
                if (variableDefinition instanceof IConstantDefinition) {
                    detailBuilder.append("const) ");
                } else {
                    detailBuilder.append("var) ");
                }
            }
        } else {
            if (variableDefinition instanceof IConstantDefinition) {
                detailBuilder.append(IASKeywordConstants.CONST);
            } else {
                detailBuilder.append(IASKeywordConstants.VAR);
            }
            detailBuilder.append(" ");
        }
        detailBuilder.append(variableDefinition.getBaseName());
        detailBuilder.append(":");
        detailBuilder.append(variableDefinition.getTypeAsDisplayString());
    } else if (definition instanceof IFunctionDefinition) {
        IFunctionDefinition functionDefinition = (IFunctionDefinition) definition;
        IDefinition parentDefinition = functionDefinition.getParent();
        if (parentDefinition instanceof ITypeDefinition) {
            if (functionDefinition.isConstructor()) {
                detailBuilder.append("(constructor) ");
            } else {
                detailBuilder.append("(method) ");
            }
            detailBuilder.append(parentDefinition.getQualifiedName());
            detailBuilder.append(".");
        } else if (parentDefinition instanceof IFunctionDefinition) {
            detailBuilder.append("(local function) ");
        } else {
            detailBuilder.append(IASKeywordConstants.FUNCTION);
            detailBuilder.append(" ");
        }
        detailBuilder.append(getSignatureLabel(functionDefinition));
    } else if (definition instanceof IEventDefinition) {
        IEventDefinition eventDefinition = (IEventDefinition) definition;
        detailBuilder.append("(event) ");
        detailBuilder.append("[");
        detailBuilder.append(IMetaAttributeConstants.ATTRIBUTE_EVENT);
        detailBuilder.append("(");
        detailBuilder.append(IMetaAttributeConstants.NAME_EVENT_NAME);
        detailBuilder.append("=");
        detailBuilder.append("\"");
        detailBuilder.append(eventDefinition.getBaseName());
        detailBuilder.append("\"");
        detailBuilder.append(",");
        detailBuilder.append(IMetaAttributeConstants.NAME_EVENT_TYPE);
        detailBuilder.append("=");
        detailBuilder.append("\"");
        detailBuilder.append(eventDefinition.getTypeAsDisplayString());
        detailBuilder.append("\"");
        detailBuilder.append(")");
        detailBuilder.append("]");
    } else if (definition instanceof IStyleDefinition) {
        IStyleDefinition styleDefinition = (IStyleDefinition) definition;
        detailBuilder.append("(style) ");
        detailBuilder.append("[");
        detailBuilder.append(IMetaAttributeConstants.ATTRIBUTE_STYLE);
        detailBuilder.append("(");
        detailBuilder.append(IMetaAttributeConstants.NAME_STYLE_NAME);
        detailBuilder.append("=");
        detailBuilder.append("\"");
        detailBuilder.append(styleDefinition.getBaseName());
        detailBuilder.append("\"");
        detailBuilder.append(",");
        detailBuilder.append(IMetaAttributeConstants.NAME_STYLE_TYPE);
        detailBuilder.append("=");
        detailBuilder.append("\"");
        detailBuilder.append(styleDefinition.getTypeAsDisplayString());
        detailBuilder.append("\"");
        detailBuilder.append(")");
        detailBuilder.append("]");
    }
    return detailBuilder.toString();
}