1. Ministry of Truth
  2. Untitled project
  3. newspeak_bleeding_edge


Gilad Bracha  committed c190d2a

More baby steps toward extended mixin support. Added InternalParser class in NewspeakParsing, useful for compiler internals and possibly for IDE to support global access during debugging.

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File NewspeakASTs.ns3

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 	superclassCall: scc 					                         	
 	superConstructorCall: sk = AST (
 (* A class prefix defines everything about a class except for its mixin. 
-It is intended to serve as a common component between class declarations and mixin applications.
+It is intended to serve as a common component between ordinary class declarations and mixin applications.
+For Squeak compatibility, we maintain a category as well (ugh).
 name <Symbol> = n.
 constructor <MessagePatternAST> = k.
 superclassName <Symbol> = sn.
 superclassCall <NormalSendAST> = scc.
 superConstructorCall <MessageAST> = sk.
+category <CategoryAST>
 ('as yet unclassified'
 apply: visitor = (

File NewspeakParsing.ns3

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 	protected VariablePatternAST = asts VariablePatternAST.
+class InternalParser = Parser (
+(* A parser able to handle identifiers involving the backquote character, `. 
+Such identifiers are illegal in regular Newspeak code, and are used as synthetic names in generated code, precisely because they cannot conflict with user code.
+Synthetic code that references such identifiers cannot be processed by the usual parser pipeline, and has often been manufactured by tedious and error prone manual AST construction.
+The intent is that instead, such code could be written as source code and parsedusing this parser, producing a valid AST that the rest of the compiler can use.
+  backTick = char: $`.
+  identifier = tokenFor:( 
+		(letter | _ | backTick),  ((letter | digit | _ | backTick)) star
+                 wrapper:[:fst   :snd  | fst asString, (String withAll: snd)]
+	).
+() : ()
 class Parser = TypedNS2Grammar (
 (* Parser for Newsqueak2. Produces a Newsqueak AST. This tree represents syntax only. No attribution information such as scopes/symbol tables, types etc. is present in the tree. The tree  only gives its structure and the source code positions of the nodes.