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Obtain source code from ASTNode [message #831147]

Wed, 28 March 2012 14:32

Francesco Spegni

Messages: 1
Registered: March 2012
Location: Italy

Junior Member

Hello all,

I'm exploring the PDT SDK in order to exploit the PHP plugin functionality for a plugin I'm writing that should show (portions of) PHP files (specific functions, methods, and so on ...).

The problem I'm having is this: with a class that extends org.eclipse.php.internal.core.ast.visitor.AbstractVisitor, I can find a function with a given name. This returns me an object of type FunctionDeclaration.

Is there any way from a FunctionDeclaration (or FunctionDeclaration.getAST()) to have back the source code that is behind the AST?

Using FunctionDeclaration.toString() I can only obtain an XML-like representation of the tree.

Many thanks in advance, this problem is driving me crazy Smile

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Re: Obtain source code from ASTNode [message #831513 is a reply to message #831147]

Thu, 29 March 2012 01:37

Toshihiro Izumi

Messages: 360
Registered: July 2009
Location: Japan

Senior Member

For latecomers, it has been answered here.
Eclipse PDT : obtaining the source code behind an ASTNode - Stack Overflow

And this is my answer for instance.
String source = functionDeclaration.getProgramRoot().getSourceModule().getSource();
int offset = functionDeclaration.getStart();
int length = functionDeclaration.getLength();
String functionSource = source.substring(offset, offset + length);
System.out.println(functionSource);

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