Eclipse Community Forums: Java Development Tools (JDT) » How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()?

Home » Language IDEs » Java Development Tools (JDT) » How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()?

How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1799411]

Thu, 06 December 2018 05:50

Eclipse User

Hi,
I have a declaration like

public static final String VALUE = "some value";

and it's used somewhere like

String v = DeclaringClass.VALUE;

In this case if I call QualifiedName.resolveConstantExpressionValue() it returns "some value". But how to get StringLiteral which is returned by FieldDeclaration.fragments().get(0).getInitializer()? Thanks

Re: How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1799430 is a reply to message #1799411]

Thu, 06 December 2018 12:03

Eclipse User

Here's an example:

assertTrue("not a string literal", expression.getNodeType() == ASTNode.STRING_LITERAL); 
StringLiteral stringLiteral = (StringLiteral) expression;
assertEquals("wrong value", "some string", stringLiteral.getLiteralValue());

Re: How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1799475 is a reply to message #1799430]

Fri, 07 December 2018 07:57

Eclipse User

Hi Jay,
Thanks for you message. But I wanted to ask different thing. Let's assume that we have only QualifiedName (DeclaringClass.VALUE), for knowing only that to get that StringLiteral?

Re: How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1799836 is a reply to message #1799475]

Fri, 14 December 2018 09:03

Eclipse User

@Jay, I think it should be similar to the solution of finding usages of DeclaringClass.VALUE. Or I have a declaration variable binding of DeclaringClass.VALUE, so how to get appropriate AST node?

Re: How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1804154 is a reply to message #1799836]

Tue, 19 March 2019 09:52

Eclipse User

Really need any kind of suggestions :/

Re: How to get ASTNode of constant which is returned by Expression.resolveConstantExpressionValue()? [message #1807386 is a reply to message #1804154]

Wed, 29 May 2019 01:21

Eclipse User

Sorry, looks like I forgot to subscribe to the thread. Hope it's not too late.
I see it works in my case. Can you confirm that you have enabled the resolve binding flag when you request for AST Conversion?

Previous Topic:	generate complex method annotations
Next Topic:	More intelligent auto completion

Goto Forum:

-=] Back to Top [=-

Current Time: Sat Jul 12 12:39:52 EDT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter