New style generator macros

Cedric Vivier added a comment - 22/Oct/08 1:55 AM Landed in rev. 3055. Re-assigned it to me as I was very motivated to do it this morning to be able to use this awesomeness in a project I'm currently working on, I hope you do not mind To be fully backward-compatible the new syntax does not replace completely the old one but is a additional possibility on top of the old one (which was/is just good enough if the consumer is not interested to generated classes/members/etc...) For the sake of documenting this JIRA issue I post the testcases here : """ Foo says hello! Bar says hello! Zap says hello! """ import Boo.Lang. Compiler macro helloClasses: for typeName in helloClasses.Arguments: yield [| class $typeName: override def ToString() as string: return "${$typeName} says hello!" |] helloClasses Foo, Bar, Zap print Foo() print Bar() print Zap() """ bonjour quoi de neuf? a bientot! """ import Boo.Lang. Compiler macro speak: for statement in speak.Block.Statements: s = cast (Ast.ExpressionStatement, statement).Expression as Ast.StringLiteralExpression if s.Value == "hello" : yield [| print "bonjour" |] if s.Value == "whats up?" : yield [| print "quoi de neuf?" |] yield [| print "a bientot!" |] speak "french" : "hello" "whats up?" """ DO> <DO Soviet Russia says hello to EnclosingClass+Foo! Soviet Russia says hello to EnclosingClass+Bar! Soviet Russia says hello to EnclosingClass+Zap! Mission accomplished, nested classes, methods and fields are defeated! """ import Boo.Lang. Compiler import Boo.Lang. Compiler .Ast macro mixed: yield cast (Field, [| (_i = 100) as int |]) #expression used to to disambiguate from BinaryExpression/assignment within block. #another possibility: yield CodeBuilder.CreateField( "_i" , TypeSystemServices.IntType) for typeName in mixed.Arguments: yield [| class $typeName: _ec as EnclosingClass def constructor(ec as EnclosingClass): _ec = ec override def ToString() as string: _ec._i++ return "Soviet Russia says hello to ${$typeName}!" |] yield [| def MissionAccomplished(): if _i == 103: #because must have started at 100 if above cast OK print "Mission accomplished, nested classes, methods and fields are defeated!" |] class EnclosingClass: def Do(): print "DO>" mixed Foo, Bar, Zap print "<DO" ec = EnclosingClass() ec.Do() print EnclosingClass.Foo(ec) print EnclosingClass.Bar(ec) print EnclosingClass.Zap(ec) ec.MissionAccomplished()

Rodrigo B. de Oliveira added a comment - 12/Jan/09 3:04 PM AWESOME!