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

Thu, 06 December 2018 10:50

Sergey Toshin

Messages: 56
Registered: May 2015

Member

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

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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 17:03

Jay Arthanareeswaran

Messages: 128
Registered: July 2009

Senior Member

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());

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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 12:57

Sergey Toshin

Messages: 56
Registered: May 2015

Member

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?

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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 14:03

Sergey Toshin

Messages: 56
Registered: May 2015

Member

@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?

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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 13:52

Sergey Toshin

Messages: 56
Registered: May 2015

Member

Really need any kind of suggestions :/

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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 05:21

Jay Arthanareeswaran

Messages: 128
Registered: July 2009

Senior Member

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?

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