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Create visitor for ast

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This commit is contained in:
James Roseborough
2010-06-23 15:00:12 +00:00
parent bd51839b2f
commit f50d7eb7d3
18 changed files with 413 additions and 109 deletions
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36
grammar/LuaParser.jj
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@@ -231,14 +231,14 @@ Stat LastStat():
Stat ExprStat():
{
PrimaryExp pe;
Assign as=null;
Stat as=null;
}
{
pe=PrimaryExp() ( as=Assign(assertvarexp(pe)) )?
{ return as==null? Stat.functioncall(assertfunccall(pe)): Stat.assignment(as); }
{ return as==null? Stat.functioncall(assertfunccall(pe)): as; }
}
Assign Assign(VarExp v0):
Stat Assign(VarExp v0):
{
List<VarExp> vl = new ArrayList<VarExp>();
vl.add(v0);
@@ -246,7 +246,7 @@ Assign Assign(VarExp v0):
List<Exp> el;
}
{
( "," ve=VarExp() { vl.add(ve); } )* "=" el=ExpList() { return new Assign(vl,el); }
( "," ve=VarExp() { vl.add(ve); } )* "=" el=ExpList() { return Stat.assignment(vl,el); }
}
VarExp VarExp():
@@ -337,16 +337,17 @@ Exp SimpleExp():
LuaString s;
Exp e;
TableConstructor tc;
FuncBody fb;
}
{
<NIL> { return Exp.constant(LuaValue.NIL); }
| <TRUE> { return Exp.constant(LuaValue.TRUE); }
| <FALSE> { return Exp.constant(LuaValue.FALSE); }
| n=<NUMBER> { return Exp.constant(LuaValue.valueOf(Double.valueOf(n.image))); }
| s=Str() { return Exp.constant(s); }
| "..." { return Exp.varargs(); }
<NIL> { return Exp.constant(LuaValue.NIL); }
| <TRUE> { return Exp.constant(LuaValue.TRUE); }
| <FALSE> { return Exp.constant(LuaValue.FALSE); }
| n=<NUMBER> { return Exp.constant(LuaValue.valueOf(Double.valueOf(n.image))); }
| s=Str() { return Exp.constant(s); }
| "..." { return Exp.varargs(); }
| tc=TableConstructor() { return Exp.tableconstructor(tc); }
| Function() { return null; }
| fb=Function() { return Exp.anonymousfunction(fb); }
| e=PrimaryExp() { return e; }
}
@@ -382,22 +383,21 @@ FuncBody Function():
FuncBody FuncBody():
{
FuncBody fb = new FuncBody();
ParList pl;
ParList pl=null;
Block b;
}
{
"(" ( pl=ParList() { fb.parlist=pl; } )? ")" b=Block() { fb.block=b; } <END> { return fb; }
"(" ( pl=ParList() )? ")" b=Block() <END> { return new FuncBody(pl,b); }
}
ParList ParList():
{
ParList pl = new ParList();
List<Name> nl;
List<Name> nl=null;
boolean v=false;
}
{
nl=NameList() { pl.namelist=nl; } ( "," "..." { pl.isvararg=true; } )? { return pl; }
| "..." { pl.isvararg=true; return pl; }
nl=NameList() ( "," "..." { v=true; } )? { return new ParList(nl,v); }
| "..." { return new ParList(null,true); ; }
}
TableConstructor TableConstructor():