Examples with GStringExpression org.codehaus.groovy.ast.expr.GStringExpression used on opensource projects

Example 1 with GStringExpression

use of org.codehaus.groovy.ast.expr.GStringExpression in project groovy by apache.

the class InnerClassVisitorHelper method dynName.

private static Expression dynName(final Parameter p) {
    List<ConstantExpression> gStringStrings = new ArrayList<>();
    gStringStrings.add(new ConstantExpression(""));
    gStringStrings.add(new ConstantExpression(""));
    List<Expression> gStringValues = new ArrayList<>();
    gStringValues.add(varX(p));
    return new GStringExpression("$name", gStringStrings, gStringValues);
}

Example 2 with GStringExpression

use of org.codehaus.groovy.ast.expr.GStringExpression in project groovy by apache.

the class AstBuilder method visitCommandExpression.

@Override
public Expression visitCommandExpression(final CommandExpressionContext ctx) {
    boolean hasArgumentList = asBoolean(ctx.enhancedArgumentListInPar());
    boolean hasCommandArgument = asBoolean(ctx.commandArgument());
    if ((hasArgumentList || hasCommandArgument) && visitingArrayInitializerCount > 0) {
        // SEE http://groovy.329449.n5.nabble.com/parrot-Command-expressions-in-array-initializer-tt5752273.html
        throw createParsingFailedException("Command chain expression can not be used in array initializer", ctx);
    }
    Expression baseExpr = (Expression) this.visit(ctx.expression());
    if ((hasArgumentList || hasCommandArgument) && !isInsideParentheses(baseExpr) && baseExpr instanceof BinaryExpression && !"[".equals(((BinaryExpression) baseExpr).getOperation().getText())) {
        throw createParsingFailedException("Unexpected input: '" + getOriginalText(ctx.expression()) + "'", ctx.expression());
    }
    MethodCallExpression methodCallExpression = null;
    if (hasArgumentList) {
        Expression arguments = this.visitEnhancedArgumentListInPar(ctx.enhancedArgumentListInPar());
        if (baseExpr instanceof PropertyExpression) {
            // e.g. obj.a 1, 2
            methodCallExpression = configureAST(this.createMethodCallExpression((PropertyExpression) baseExpr, arguments), ctx.expression(), arguments);
        } else if (baseExpr instanceof MethodCallExpression && !isInsideParentheses(baseExpr)) {
            // e.g. m {} a, b  OR  m(...) a, b
            if (asBoolean(arguments)) {
                // The error should never be thrown.
                throw new GroovyBugError("When baseExpr is a instance of MethodCallExpression, which should follow NO argumentList");
            }
            methodCallExpression = (MethodCallExpression) baseExpr;
        } else if (!isInsideParentheses(baseExpr) && (// e.g. m 1, 2
        baseExpr instanceof VariableExpression || // e.g. "$m" 1, 2
        baseExpr instanceof GStringExpression || (baseExpr instanceof ConstantExpression && isTrue(baseExpr, IS_STRING)))) {
            // e.g. "m" 1, 2
            validateInvalidMethodDefinition(baseExpr, arguments);
            methodCallExpression = configureAST(this.createMethodCallExpression(baseExpr, arguments), ctx.expression(), arguments);
        } else {
            // e.g. a[x] b, new A() b, etc.
            methodCallExpression = configureAST(this.createCallMethodCallExpression(baseExpr, arguments), ctx.expression(), arguments);
        }
        methodCallExpression.putNodeMetaData(IS_COMMAND_EXPRESSION, Boolean.TRUE);
        if (!hasCommandArgument) {
            return methodCallExpression;
        }
    }
    if (hasCommandArgument) {
        baseExpr.putNodeMetaData(IS_COMMAND_EXPRESSION, Boolean.TRUE);
    }
    return configureAST((Expression) ctx.commandArgument().stream().map(e -> (Object) e).reduce(methodCallExpression != null ? methodCallExpression : baseExpr, (r, e) -> {
        CommandArgumentContext commandArgumentContext = (CommandArgumentContext) e;
        commandArgumentContext.putNodeMetaData(CMD_EXPRESSION_BASE_EXPR, r);
        return this.visitCommandArgument(commandArgumentContext);
    }), ctx);
}

Example 3 with GStringExpression

use of org.codehaus.groovy.ast.expr.GStringExpression in project groovy by apache.

the class AstBuilder method visitGstring.

// } literal ---------------------------------------------------------------
// gstring { ---------------------------------------------------------------
@Override
public GStringExpression visitGstring(final GstringContext ctx) {
    final List<ConstantExpression> stringLiteralList = new LinkedList<>();
    final String begin = ctx.GStringBegin().getText();
    final String beginQuotation = beginQuotation(begin);
    stringLiteralList.add(configureAST(new ConstantExpression(parseGStringBegin(ctx, beginQuotation)), ctx.GStringBegin()));
    List<ConstantExpression> partStrings = ctx.GStringPart().stream().map(e -> configureAST(new ConstantExpression(parseGStringPart(e, beginQuotation)), e)).collect(Collectors.toList());
    stringLiteralList.addAll(partStrings);
    stringLiteralList.add(configureAST(new ConstantExpression(parseGStringEnd(ctx, beginQuotation)), ctx.GStringEnd()));
    List<Expression> values = ctx.gstringValue().stream().map(this::visitGstringValue).collect(Collectors.toList());
    StringBuilder verbatimText = new StringBuilder(ctx.getText().length());
    for (int i = 0, n = stringLiteralList.size(), s = values.size(); i < n; i += 1) {
        verbatimText.append(stringLiteralList.get(i).getValue());
        if (i == s) {
            continue;
        }
        Expression value = values.get(i);
        if (!asBoolean(value)) {
            continue;
        }
        boolean isVariableExpression = value instanceof VariableExpression;
        verbatimText.append(DOLLAR_STR);
        if (!isVariableExpression)
            verbatimText.append('{');
        verbatimText.append(value.getText());
        if (!isVariableExpression)
            verbatimText.append('}');
    }
    return configureAST(new GStringExpression(verbatimText.toString(), stringLiteralList, values), ctx);
}

Example 4 with GStringExpression

use of org.codehaus.groovy.ast.expr.GStringExpression in project groovy by apache.

the class AstBuilder method visitPathElement.

@Override
public Expression visitPathElement(final PathElementContext ctx) {
    Expression baseExpr = ctx.getNodeMetaData(PATH_EXPRESSION_BASE_EXPR);
    Objects.requireNonNull(baseExpr, "baseExpr is required!");
    if (asBoolean(ctx.namePart())) {
        Expression namePartExpr = this.visitNamePart(ctx.namePart());
        GenericsType[] genericsTypes = this.visitNonWildcardTypeArguments(ctx.nonWildcardTypeArguments());
        if (asBoolean(ctx.DOT())) {
            boolean isSafeChain = this.isTrue(baseExpr, PATH_EXPRESSION_BASE_EXPR_SAFE_CHAIN);
            return this.createDotExpression(ctx, baseExpr, namePartExpr, genericsTypes, isSafeChain);
        } else if (asBoolean(ctx.SAFE_DOT())) {
            return this.createDotExpression(ctx, baseExpr, namePartExpr, genericsTypes, true);
        } else if (asBoolean(ctx.SAFE_CHAIN_DOT())) {
            // e.g. obj??.a  OR obj??.@a
            Expression expression = createDotExpression(ctx, baseExpr, namePartExpr, genericsTypes, true);
            expression.putNodeMetaData(PATH_EXPRESSION_BASE_EXPR_SAFE_CHAIN, true);
            return expression;
        } else if (asBoolean(ctx.METHOD_POINTER())) {
            // e.g. obj.&m
            return configureAST(new MethodPointerExpression(baseExpr, namePartExpr), ctx);
        } else if (asBoolean(ctx.METHOD_REFERENCE())) {
            // e.g. obj::m
            return configureAST(new MethodReferenceExpression(baseExpr, namePartExpr), ctx);
        } else if (asBoolean(ctx.SPREAD_DOT())) {
            if (asBoolean(ctx.AT())) {
                // e.g. obj*.@a
                AttributeExpression attributeExpression = new AttributeExpression(baseExpr, namePartExpr, true);
                attributeExpression.setSpreadSafe(true);
                return configureAST(attributeExpression, ctx);
            } else {
                // e.g. obj*.p
                PropertyExpression propertyExpression = new PropertyExpression(baseExpr, namePartExpr, true);
                propertyExpression.putNodeMetaData(PATH_EXPRESSION_BASE_EXPR_GENERICS_TYPES, genericsTypes);
                propertyExpression.setSpreadSafe(true);
                return configureAST(propertyExpression, ctx);
            }
        }
    } else if (asBoolean(ctx.creator())) {
        CreatorContext creatorContext = ctx.creator();
        creatorContext.putNodeMetaData(ENCLOSING_INSTANCE_EXPRESSION, baseExpr);
        return configureAST(this.visitCreator(creatorContext), ctx);
    } else if (asBoolean(ctx.indexPropertyArgs())) {
        // e.g. list[1, 3, 5]
        Tuple2<Token, Expression> tuple = this.visitIndexPropertyArgs(ctx.indexPropertyArgs());
        boolean isSafeChain = this.isTrue(baseExpr, PATH_EXPRESSION_BASE_EXPR_SAFE_CHAIN);
        return configureAST(new BinaryExpression(baseExpr, createGroovyToken(tuple.getV1()), tuple.getV2(), isSafeChain || asBoolean(ctx.indexPropertyArgs().SAFE_INDEX())), ctx);
    } else if (asBoolean(ctx.namedPropertyArgs())) {
        // this is a special way to signify a cast, e.g. Person[name: 'Daniel.Sun', location: 'Shanghai']
        List<MapEntryExpression> mapEntryExpressionList = this.visitNamedPropertyArgs(ctx.namedPropertyArgs());
        Expression right;
        Expression firstKeyExpression;
        int mapEntryExpressionListSize = mapEntryExpressionList.size();
        if (mapEntryExpressionListSize == 0) {
            // expecting list of MapEntryExpressions later so use SpreadMap to smuggle empty MapExpression to later stages
            right = configureAST(new SpreadMapExpression(configureAST(new MapExpression(), ctx.namedPropertyArgs())), ctx.namedPropertyArgs());
        } else if (mapEntryExpressionListSize == 1 && (firstKeyExpression = mapEntryExpressionList.get(0).getKeyExpression()) instanceof SpreadMapExpression) {
            right = firstKeyExpression;
        } else {
            ListExpression listExpression = configureAST(new ListExpression(mapEntryExpressionList.stream().map(e -> {
                if (e.getKeyExpression() instanceof SpreadMapExpression) {
                    return e.getKeyExpression();
                }
                return e;
            }).collect(Collectors.toList())), ctx.namedPropertyArgs());
            listExpression.setWrapped(true);
            right = listExpression;
        }
        NamedPropertyArgsContext namedPropertyArgsContext = ctx.namedPropertyArgs();
        Token token = (namedPropertyArgsContext.LBRACK() == null ? namedPropertyArgsContext.SAFE_INDEX() : namedPropertyArgsContext.LBRACK()).getSymbol();
        return configureAST(new BinaryExpression(baseExpr, createGroovyToken(token), right), ctx);
    } else if (asBoolean(ctx.arguments())) {
        Expression argumentsExpr = this.visitArguments(ctx.arguments());
        configureAST(argumentsExpr, ctx);
        if (isInsideParentheses(baseExpr)) {
            // e.g. (obj.x)(), (obj.@x)()
            return configureAST(createCallMethodCallExpression(baseExpr, argumentsExpr), ctx);
        }
        if (baseExpr instanceof AttributeExpression) {
            // e.g. obj.@a(1, 2)
            AttributeExpression attributeExpression = (AttributeExpression) baseExpr;
            // whether attributeExpression is spread safe or not, we must reset it as false
            attributeExpression.setSpreadSafe(false);
            return configureAST(createCallMethodCallExpression(attributeExpression, argumentsExpr, true), ctx);
        }
        if (baseExpr instanceof PropertyExpression) {
            // e.g. obj.a(1, 2)
            MethodCallExpression methodCallExpression = this.createMethodCallExpression((PropertyExpression) baseExpr, argumentsExpr);
            return configureAST(methodCallExpression, ctx);
        }
        if (baseExpr instanceof VariableExpression) {
            // void and primitive type AST node must be an instance of VariableExpression
            String baseExprText = baseExpr.getText();
            if (VOID_STR.equals(baseExprText)) {
                // e.g. void()
                return configureAST(this.createCallMethodCallExpression(this.createConstantExpression(baseExpr), argumentsExpr), ctx);
            } else if (isPrimitiveType(baseExprText)) {
                // e.g. int(), long(), float(), etc.
                throw this.createParsingFailedException("Primitive type literal: " + baseExprText + " cannot be used as a method name", ctx);
            }
        }
        if (// e.g. m()
        baseExpr instanceof VariableExpression || // e.g. "$m"()
        baseExpr instanceof GStringExpression || (baseExpr instanceof ConstantExpression && this.isTrue(baseExpr, IS_STRING))) {
            // e.g. "m"()
            String baseExprText = baseExpr.getText();
            if (THIS_STR.equals(baseExprText) || SUPER_STR.equals(baseExprText)) {
                // @MapConstructor(pre={ super(args?.first, args?.last); args = args ?: [:] }, post = { first = first?.toUpperCase() })
                if (visitingClosureCount > 0) {
                    return configureAST(new MethodCallExpression(baseExpr, baseExprText, argumentsExpr), ctx);
                }
                return configureAST(new ConstructorCallExpression(SUPER_STR.equals(baseExprText) ? ClassNode.SUPER : ClassNode.THIS, argumentsExpr), ctx);
            }
            MethodCallExpression methodCallExpression = this.createMethodCallExpression(baseExpr, argumentsExpr);
            return configureAST(methodCallExpression, ctx);
        }
        // e.g. 1(), 1.1(), ((int) 1 / 2)(1, 2), {a, b -> a + b }(1, 2), m()()
        return configureAST(this.createCallMethodCallExpression(baseExpr, argumentsExpr), ctx);
    } else if (asBoolean(ctx.closureOrLambdaExpression())) {
        ClosureExpression closureExpression = this.visitClosureOrLambdaExpression(ctx.closureOrLambdaExpression());
        if (baseExpr instanceof MethodCallExpression) {
            MethodCallExpression methodCallExpression = (MethodCallExpression) baseExpr;
            Expression argumentsExpression = methodCallExpression.getArguments();
            if (argumentsExpression instanceof ArgumentListExpression) {
                // normal arguments, e.g. 1, 2
                ArgumentListExpression argumentListExpression = (ArgumentListExpression) argumentsExpression;
                argumentListExpression.getExpressions().add(closureExpression);
                return configureAST(methodCallExpression, ctx);
            }
            if (argumentsExpression instanceof TupleExpression) {
                // named arguments, e.g. x: 1, y: 2
                TupleExpression tupleExpression = (TupleExpression) argumentsExpression;
                NamedArgumentListExpression namedArgumentListExpression = (NamedArgumentListExpression) tupleExpression.getExpression(0);
                if (asBoolean(tupleExpression.getExpressions())) {
                    methodCallExpression.setArguments(configureAST(new ArgumentListExpression(configureAST(new MapExpression(namedArgumentListExpression.getMapEntryExpressions()), namedArgumentListExpression), closureExpression), tupleExpression));
                } else {
                    // the branch should never reach, because named arguments must not be empty
                    methodCallExpression.setArguments(configureAST(new ArgumentListExpression(closureExpression), tupleExpression));
                }
                return configureAST(methodCallExpression, ctx);
            }
        }
        if (baseExpr instanceof PropertyExpression) {
            // e.g. obj.m { }
            MethodCallExpression methodCallExpression = this.createMethodCallExpression((PropertyExpression) baseExpr, configureAST(new ArgumentListExpression(closureExpression), closureExpression));
            return configureAST(methodCallExpression, ctx);
        }
        if (// e.g. m { }
        baseExpr instanceof VariableExpression || // e.g. "$m" { }
        baseExpr instanceof GStringExpression || (baseExpr instanceof ConstantExpression && this.isTrue(baseExpr, IS_STRING))) {
            // e.g. "m" { }
            MethodCallExpression methodCallExpression = this.createMethodCallExpression(baseExpr, configureAST(new ArgumentListExpression(closureExpression), closureExpression));
            return configureAST(methodCallExpression, ctx);
        }
        // e.g. 1 { }, 1.1 { }, (1 / 2) { }, m() { }, { -> ... } { }
        MethodCallExpression methodCallExpression = this.createCallMethodCallExpression(baseExpr, configureAST(new ArgumentListExpression(closureExpression), closureExpression));
        return configureAST(methodCallExpression, ctx);
    }
    throw createParsingFailedException("Unsupported path element: " + ctx.getText(), ctx);
}