Remove list rewrites

ChangeLog

+2020-05-18  Jesper Öqvist <jesper.oqvist@cs.lth.se>
+
+    * Removed the deprecated list rewrite feature.
+
 2020-05-15  Jesper Öqvist <jesper.oqvist@cs.lth.se>
 
     * Fixed order dependency between interface declarations and collection

src/jastadd/ast/Ast.ast

@@ -58,8 +58,6 @@ ClassBodyDecl ::= <Name> <FileName> <StartLine:int> <EndLine:int> <AspectName:St
 
 Rewrite ::= <FileName> <StartLine:int> <EndLine:int> <AspectName>;
 
-RewriteList : Rewrite;
-
 /** A component of an AST node type declaration. */
 abstract Component;
 

src/jastadd/ast/AttributeProblems.jrag

@@ -506,16 +506,4 @@ aspect AttributeProblems {
       when root != null && root() == null
       to TypeDecl.attributeProblems()
       for hostClass();
-
-  RewriteList contributes
-      error("list rewrites are not supported when using cnta rewrites")
-      when config().rewriteCircularNTA()
-      to TypeDecl.attributeProblems()
-      for hostClass();
-
-  RewriteList contributes
-      warning("list rewrites are deprecated and will be removed in a future version of JastAdd")
-      when config().legacyRewrite()
-      to TypeDecl.attributeProblems()
-      for hostClass();
 }

src/jastadd/ast/Attributes.jrag

@@ -87,45 +87,6 @@ public aspect Attributes {
     aspectMap.put(name, comment);
   }
 
-  // Add attributes to AST.
-  public void Grammar.addRewriteList(
-      String className,
-      org.jastadd.jrag.AST.SimpleNode condition,
-      org.jastadd.jrag.AST.SimpleNode result,
-      String type,
-      String fileName,
-      int startLine,
-      int endLine,
-      String parentName,
-      String childName,
-      String aspectName) {
-
-    if (!config().rewriteEnabled()) {
-      error("can not use rewrites while rewrites are disabled (enable with --rewrite=cnta)",
-          fileName, startLine);
-      return;
-    }
-
-    TypeDecl c = lookup(className);
-    if (c != null && c instanceof ASTDecl) {
-      RewriteList r = new RewriteList();
-      r.setFileName(fileName);
-      r.setStartLine(startLine);
-      r.setEndLine(endLine);
-      r.setCondition(condition);
-      r.setResult(result);
-      r.setReturnType(type);
-      r.setParentName(parentName);
-      r.setChildName(childName);
-      r.setAspectName(aspectName);
-      ((ASTDecl)c).addRewrite(r);
-    } else if (c != null) {
-      error("can not rewrite to non AST class '" + className + "'", fileName, startLine);
-    } else {
-      error("can not rewrite to unknown class '" + className + "'", fileName, startLine);
-    }
-  }
-
   public void Grammar.addRewrite(
       String className,
       org.jastadd.jrag.AST.SimpleNode condition,
@@ -1125,24 +1086,4 @@ public aspect Attributes {
   public void Rewrite.setReturnType(String type) {
     returnType = type;
   }
-
-  public String RewriteList.parentName;
-
-  public String RewriteList.getParentName() {
-    return parentName;
-  }
-
-  public void RewriteList.setParentName(String name) {
-    parentName = name;
-  }
-
-  public String RewriteList.childName;
-
-  public String RewriteList.getChildName() {
-    return childName;
-  }
-
-  public void RewriteList.setChildName(String name) {
-    childName = name;
-  }
 }

src/jastadd/ast/Rewrites.jrag

@@ -90,18 +90,6 @@ aspect Rewrites {
     }
   }
 
-  public boolean RewriteList.genRewrite(PrintStream out, int index) {
-    TemplateContext tt = templateContext();
-    tt.expand("Rewrite.declaredat", out);
-    if (getCondition() != null) {
-      tt.bind("Condition", " && " + Unparser.unparse(getCondition()));
-    } else {
-      tt.bind("Condition", "");
-    }
-    tt.expand("RewriteList.genRewrite", out);
-    return false;
-  }
-
   public void Rewrite.genRewriteCondition(PrintStream out, int index) {
     TemplateContext tt = templateContext();
     tt.bind("RewriteIndex", "" + index);
@@ -129,23 +117,6 @@ aspect Rewrites {
     }
   }
 
-  public void RewriteList.genRewritesExtra(PrintStream out, int index) {
-    String ind = config().indent;
-    String ind2 = config().ind(2);
-    if (getResult() instanceof org.jastadd.jrag.AST.ASTBlock) {
-      templateContext().expand("Rewrite.javaDoc:internal", out);
-      out.println(ind + "private " + getReturnType() + " rewrite"
-          + getParentName() + "_" + getChildName() + "() {");
-      out.print(Unparser.unparse(getResult()));
-      out.println(ind + "}");
-    } else {
-      templateContext().expand("Rewrite.javaDoc:internal", out);
-      out.println(ind + "private " + getReturnType() + " rewrite" + getParentName() + "_" + getChildName() + "() {");
-      out.println(ind2 + "return " + Unparser.unparse(getResult()) + ";");
-      out.println(ind + "}");
-    }
-  }
-
   syn lazy boolean ASTDecl.hasRewrites() =
       getNumRewrite() > 0 || (superClass() != null && superClass().hasRewrites());
 

src/javacc/jrag/Jrag.jjt

@@ -1139,22 +1139,15 @@ void AspectRewrite() :
   SimpleNode eq;
   Token first, last;
 
-  Token parent = null;
-  Token child = null;
   String type;
 }
 {
   "rewrite" {cond = null; first = token;} t = <IDENTIFIER> { className = t.image; }
-  [<IDENTIFIER> parent = <IDENTIFIER> "." child = <IDENTIFIER> <LPAREN> <RPAREN>]
   <LBRACE>
     ( ["when" { first = token; } <LPAREN> cond = Expression() <RPAREN>]
       "to" type = AspectType() ( (eq = Expression() ";" { last = token; }) | eq = Block() { last = token; } )
       {
-        if (parent != null && child != null) {
-          root.addRewriteList(className, cond, eq, type, fileName, first.beginLine, last.endLine, parent.image, child.image, enclosingAspect);
-        } else {
         root.addRewrite(className, cond, eq, type, fileName, first.beginLine, last.endLine, enclosingAspect);
-        }
         cond = null;
       }
     )+