Example usage for org.eclipse.jdt.core.dom Expression setSourceRange

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.dom Expression setSourceRange.

Prototype

public final void setSourceRange(int startPosition, int length) 

Source Link

Document

Sets the source range of the original source file where the source fragment corresponding to this node was found.

Usage

From source file:org.eclipse.jdt.core.dom.ASTConverter.java

License:Open Source License

public Expression convert(MessageSend expression) {
    // will return a MethodInvocation or a SuperMethodInvocation or
    Expression expr;
    int sourceStart = expression.sourceStart;
    if (expression.isSuperAccess()) {
        // returns a SuperMethodInvocation
        final SuperMethodInvocation superMethodInvocation = new SuperMethodInvocation(this.ast);
        if (this.resolveBindings) {
            recordNodes(superMethodInvocation, expression);
        }//from w  w  w  . ja  va 2 s . co  m
        final SimpleName name = new SimpleName(this.ast);
        name.internalSetIdentifier(new String(expression.selector));
        int nameSourceStart = (int) (expression.nameSourcePosition >>> 32);
        int nameSourceLength = ((int) expression.nameSourcePosition) - nameSourceStart + 1;
        name.setSourceRange(nameSourceStart, nameSourceLength);
        if (this.resolveBindings) {
            recordNodes(name, expression);
        }
        superMethodInvocation.setName(name);
        // expression.receiver is either a QualifiedSuperReference or a SuperReference
        // so the casting cannot fail
        if (expression.receiver instanceof org.eclipse.jdt.internal.compiler.ast.QualifiedSuperReference) {
            Name qualifier = convert(
                    (org.eclipse.jdt.internal.compiler.ast.QualifiedSuperReference) expression.receiver);
            superMethodInvocation.setQualifier(qualifier);
            if (this.resolveBindings) {
                recordNodes(qualifier, expression.receiver);
            }
            if (qualifier != null) {
                sourceStart = qualifier.getStartPosition();
            }
        }
        org.eclipse.jdt.internal.compiler.ast.Expression[] arguments = expression.arguments;
        if (arguments != null) {
            int argumentsLength = arguments.length;
            for (int i = 0; i < argumentsLength; i++) {
                Expression expri = convert(arguments[i]);
                if (this.resolveBindings) {
                    recordNodes(expri, arguments[i]);
                }
                superMethodInvocation.arguments().add(expri);
            }
        }
        final TypeReference[] typeArguments = expression.typeArguments;
        if (typeArguments != null) {
            switch (this.ast.apiLevel) {
            case AST.JLS2_INTERNAL:
                superMethodInvocation.setFlags(superMethodInvocation.getFlags() | ASTNode.MALFORMED);
                break;
            default:
                for (int i = 0, max = typeArguments.length; i < max; i++) {
                    superMethodInvocation.typeArguments().add(convertType(typeArguments[i]));
                }
                break;
            }
        }
        expr = superMethodInvocation;
    } else {
        // returns a MethodInvocation
        final MethodInvocation methodInvocation = new MethodInvocation(this.ast);
        if (this.resolveBindings) {
            recordNodes(methodInvocation, expression);
        }
        final SimpleName name = new SimpleName(this.ast);
        name.internalSetIdentifier(new String(expression.selector));
        int nameSourceStart = (int) (expression.nameSourcePosition >>> 32);
        int nameSourceLength = ((int) expression.nameSourcePosition) - nameSourceStart + 1;
        name.setSourceRange(nameSourceStart, nameSourceLength);
        methodInvocation.setName(name);
        if (this.resolveBindings) {
            recordNodes(name, expression);
        }
        org.eclipse.jdt.internal.compiler.ast.Expression[] arguments = expression.arguments;
        if (arguments != null) {
            int argumentsLength = arguments.length;
            for (int i = 0; i < argumentsLength; i++) {
                Expression expri = convert(arguments[i]);
                if (this.resolveBindings) {
                    recordNodes(expri, arguments[i]);
                }
                methodInvocation.arguments().add(expri);
            }
        }
        Expression qualifier = null;
        org.eclipse.jdt.internal.compiler.ast.Expression receiver = expression.receiver;
        if (receiver instanceof MessageSend) {
            if ((receiver.bits & org.eclipse.jdt.internal.compiler.ast.ASTNode.ParenthesizedMASK) != 0) {
                qualifier = convertToParenthesizedExpression(receiver);
            } else {
                qualifier = convert((MessageSend) receiver);
            }
        } else {
            qualifier = convert(receiver);
        }
        if (qualifier instanceof Name && this.resolveBindings) {
            recordNodes(qualifier, receiver);
        }
        methodInvocation.setExpression(qualifier);
        if (qualifier != null) {
            sourceStart = qualifier.getStartPosition();
        }
        final TypeReference[] typeArguments = expression.typeArguments;
        if (typeArguments != null) {
            switch (this.ast.apiLevel) {
            case AST.JLS2_INTERNAL:
                methodInvocation.setFlags(methodInvocation.getFlags() | ASTNode.MALFORMED);
                break;
            default:
                for (int i = 0, max = typeArguments.length; i < max; i++) {
                    methodInvocation.typeArguments().add(convertType(typeArguments[i]));
                }
                break;
            }
        }
        expr = methodInvocation;
    }
    expr.setSourceRange(sourceStart, expression.sourceEnd - sourceStart + 1);
    removeTrailingCommentFromExpressionEndingWithAParen(expr);
    return expr;
}

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From source file:org.eclipse.wb.internal.core.utils.ast.AstParser.java

License:Open Source License

/**
 * @return the new {@link Expression} for given source and position.
 *///from ww w. j a v a2  s  .c om
public Expression parseExpression(int position, String src) throws Exception {
    // special handling for "null"
    if ("null".equals(src)) {
        Expression expression = getAst().newNullLiteral();
        expression.setSourceRange(position, "null".length());
        return expression;
    }
    // prepare expression
    Expression expression;
    {
        String source = "java.lang.System.out.println(" + src + ");";
        ExpressionStatement statement = (ExpressionStatement) parseStatement(position, source);
        MethodInvocation invocation = (MethodInvocation) statement.getExpression();
        expression = (Expression) invocation.arguments().get(0);
        // replace expression to make our expression free
        {
            SimpleName fakeExpression = getAst().newSimpleName("foo");
            DomGenerics.arguments(invocation).set(0, fakeExpression);
        }
    }
    // set correct position
    AstNodeUtils.moveNode(expression, position);
    return expression;
}

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