Examples with GroovyPsiElementVisitor org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementVisitor used on opensource projects

Example 1 with GroovyPsiElementVisitor

use of org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementVisitor in project intellij-community by JetBrains.

the class GroovyExpectedTypesProvider method calculateTypeConstraints.

public static TypeConstraint[] calculateTypeConstraints(@NotNull final GrExpression expression) {
    return TypeInferenceHelper.getCurrentContext().getCachedValue(expression, () -> {
        MyCalculator calculator = new MyCalculator(expression);
        final PsiElement parent = expression.getParent();
        if (parent instanceof GroovyPsiElement) {
            ((GroovyPsiElement) parent).accept(calculator);
        } else {
            parent.accept(new GroovyPsiElementVisitor(calculator));
        }
        final TypeConstraint[] result = calculator.getResult();
        List<TypeConstraint> custom = ContainerUtil.newArrayList();
        for (GroovyExpectedTypesContributor contributor : GroovyExpectedTypesContributor.EP_NAME.getExtensions()) {
            custom.addAll(contributor.calculateTypeConstraints(expression));
        }
        if (!custom.isEmpty()) {
            custom.addAll(0, Arrays.asList(result));
            return custom.toArray(new TypeConstraint[custom.size()]);
        }
        return result;
    });
}

Example 2 with GroovyPsiElementVisitor

use of org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementVisitor in project android by JetBrains.

the class GradleEditorModelParserFacade method fillContext.

/**
   * Processes given PSI file and fills given context
   * by {@link GradleEditorModelParseContext#getAssignments(Variable) corresponding assignments}.
   *
   * @param context  context to fill
   * @param psiFile  psi file to parse
   */
private static void fillContext(@NotNull final GradleEditorModelParseContext context, @NotNull PsiFile psiFile) {
    psiFile.acceptChildren(new GroovyPsiElementVisitor(new GroovyRecursiveElementVisitor() {

        @Override
        public void visitMethodCallExpression(GrMethodCallExpression methodCallExpression) {
            Pair<String, TextRange> pair = GradleEditorValueExtractor.extractMethodName(methodCallExpression);
            GrClosableBlock[] closureArguments = methodCallExpression.getClosureArguments();
            if (pair == null || closureArguments.length > 1) {
                super.visitMethodCallExpression(methodCallExpression);
                return;
            }
            if (closureArguments.length == 0) {
                if (methodCallExpression.getArgumentList().getAllArguments().length == 0) {
                    // This is a no-args method, so, we just register it for cases like 'mavenCentral()' or 'jcenter()'.
                    context.addCachedValue(NO_ARGS_METHOD_ASSIGNMENT_VALUE, TextRange.create(pair.second.getEndOffset(), methodCallExpression.getTextRange().getEndOffset()));
                    context.registerAssignmentFromCachedData(pair.first, pair.second, methodCallExpression);
                }
                return;
            }
            context.onMethodEnter(pair.getFirst());
            try {
                super.visitClosure(closureArguments[0]);
            } finally {
                context.onMethodExit();
            }
        }

        @Override
        public void visitApplicationStatement(GrApplicationStatement applicationStatement) {
            Pair<String, TextRange> methodName = GradleEditorValueExtractor.extractMethodName(applicationStatement);
            if (methodName == null) {
                return;
            }
            GroovyPsiElement[] allArguments = applicationStatement.getArgumentList().getAllArguments();
            if (allArguments.length == 1) {
                context.resetCaches();
                extractValueOrVariable(allArguments[0], context);
                context.registerAssignmentFromCachedData(methodName.getFirst(), methodName.getSecond(), applicationStatement.getArgumentList());
            }
        }

        @Override
        public void visitAssignmentExpression(GrAssignmentExpression expression) {
            // General idea is to try to extract variable from the given expression and, in case of success, try to extract rvalue and
            // register corresponding assignment with them.
            context.resetCaches();
            extractValueOrVariable(expression.getLValue(), context);
            Multimap<Variable, Location> vars = context.getCachedVariables();
            if (vars.size() != 1) {
                context.resetCaches();
                return;
            }
            Map.Entry<Variable, Location> entry = vars.entries().iterator().next();
            Variable lVariable = entry.getKey();
            Location lVariableLocation = entry.getValue();
            context.resetCaches();
            GrExpression rValue = expression.getRValue();
            if (rValue == null) {
                return;
            }
            extractValueOrVariable(rValue, context);
            if (context.getCachedValues().size() > 1) {
                Value value = new Value("", new Location(context.getCurrentFile(), GradleEditorModelUtil.interestedRange(rValue)));
                context.setCachedValues(Collections.singletonList(value));
            }
            context.registerAssignmentFromCachedData(lVariable, lVariableLocation, rValue);
            context.resetCaches();
        }

        @Override
        public void visitVariable(GrVariable variable) {
            TextRange nameRange = null;
            boolean lookForInitializer = false;
            ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.findSingle(GroovyLanguage.INSTANCE);
            for (PsiElement e = variable.getFirstChild(); e != null; e = e.getNextSibling()) {
                ASTNode node = e.getNode();
                if (node == null) {
                    continue;
                }
                if (!lookForInitializer) {
                    if (node.getElementType() == GroovyTokenTypes.mIDENT) {
                        nameRange = e.getTextRange();
                    } else if (node.getElementType() == GroovyTokenTypes.mASSIGN) {
                        if (nameRange == null) {
                            return;
                        }
                        lookForInitializer = true;
                    }
                    continue;
                }
                if (node.getElementType() == GroovyTokenTypes.mNLS || node.getElementType() == GroovyTokenTypes.mSEMI) {
                    break;
                }
                if (parserDefinition.getWhitespaceTokens().contains(node.getElementType())) {
                    continue;
                }
                extractValueOrVariable(e, context);
                if (context.getCachedValues().size() > 1) {
                    Value value = new Value("", new Location(context.getCurrentFile(), GradleEditorModelUtil.interestedRange(e)));
                    context.setCachedValues(Collections.singletonList(value));
                }
                if (context.registerAssignmentFromCachedData(variable.getName(), nameRange, e)) {
                    return;
                }
            }
        }
    }));
}