Ok, poking around the source for VariableScopeVisitor didn't provide me
with any insights. It did lead me to try
VariableScopeVisitor scopeVisitor = new VariableScopeVisitor( source, true)
but I still get the error:
BUG! exception in phase 'class generation' in source unit 'CtxTest2.groovy' Operation:
(<assignment operator>: "=" ) not supported
One possible twist that I noticed, is if I run my test script under
groovyConsole
I get one error message. But, if I run the equivalent code (with a 'main') as a
standalone groovy file, the error message is printed twice. Not sure what that
indicates.
But, it is tied to my inserted statements. If I comment out the statement
insertions, the compiler is happy. So I'm guessing I'm building bad
statements.
What is the proper way to build a statement that set a property that is
defined in a base class (i.e., extended by a class that gets instantiated)?
I'm currently doing:
VariableExpression cV = newVariableExpression( '__currentContext')
// PropertyExpression cP = newPropertyExpression( cnStack[ -1],
'__currentContext')
ExpressionStatement currStmt = newExpressionStatement(
new BinaryExpression(
cV, // also tried assigning to cP
instead of cV
new Token(Types.ASSIGNMENT_OPERATOR, "=", -1, -1),
cnStack[ -1]
// new MethodCallExpression( VariableExpression.THIS_EXPRESSION,
// new
ConstantExpression( 'getDelegate'),
// new
ArgumentListExpress())
)
)
blockStatement.statements.add( 0, currStmt)
(I've tried with and without the VariableScopeVisitor call, and with and without
a call to "blockStatement.variableScope.putReferencedClassVariable( cv)".)
So, does this look like the correct way to set the value of a property that is
inherited from a base class?
(The somewhat frustrating thing is the resultant AST with the inserted
statements
looks correct after the transform (up through the Instruction Selection phase).
In fact, if I type that code into a separate groovyConsole, it runs.)
Thanks for your time,
Ed
On 02/16/2017 04:41 PM, Paul King wrote:
Do you have something like:
VariableScopeVisitor scopeVisitor = new VariableScopeVisitor(source)
scopeVisitor.visitClass(cNode)
for each of your closure(s)? Where cNode is a closure's classNode?
Cheers, Paul.
