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Add abstract syntax tree elements.

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This commit is contained in:
James Roseborough
2010-06-22 00:51:32 +00:00
parent 3e676d857a
commit 7d8c02c4af
20 changed files with 1199 additions and 2 deletions
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3
build.xml
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@@ -56,8 +56,7 @@
<target name="parser" depends="javacc-lib">
<java classname="javacc" classpath="lib/javacc.jar">
<arg line="-OUTPUT_DIRECTORY=src/jse/org/luaj/vm2/parser"/>
<arg line="grammar/Lua51.jj"/>
<arg line="grammar/LuaParser.jj"/>
</java>
</target>

464
grammar/LuaParser.jj Normal file
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@@ -0,0 +1,464 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
/**
* Javacc grammar used to produce a parse tree.
*
*/
options {
STATIC = false;
JDK_VERSION = "1.3";
ERROR_REPORTING = false;
DEBUG_LOOKAHEAD = false;
DEBUG_PARSER = false;
DEBUG_TOKEN_MANAGER = false;
OUTPUT_DIRECTORY = "src/jse/org/luaj/vm2/parser";
}
PARSER_BEGIN(LuaParser)
package org.luaj.vm2.parser;
import org.luaj.vm2.*;
import org.luaj.vm2.ast.*;
import java.util.*;
public class LuaParser {
public static void main(String args[]) throws ParseException {
LuaParser parser = new LuaParser(System.in);
parser.Chunk();
}
private static VarExp assertvarexp(PrimaryExp pe) throws ParseException {
if (!pe.isvarexp())
throw new ParseException("exptected variable");
return (VarExp) pe;
}
private static FuncCall assertfunccall(PrimaryExp pe) throws ParseException {
if (!pe.isfunccall())
throw new ParseException("expected function call");
return (FuncCall) pe;
}
}
PARSER_END(LuaParser)
/* WHITE SPACE */
SKIP :
{
" " | "\t" | "\n" | "\r" | "\f"
}
/* COMMENTS and LONG STRINGS */
MORE :
{
"--[[": IN_LC0
| "--[=[": IN_LC1
| "--[==[": IN_LC2
| "--[===[": IN_LC3
| < "--[====" ("=")* "[" > : IN_LCN
| "[[" : IN_LS0
| "[=[" : IN_LS1
| "[==[" : IN_LS2
| "[===[" : IN_LS3
| < "[====" ("=")* "[" > : IN_LSN
| "--" : IN_COMMENT
}
<IN_COMMENT> SPECIAL_TOKEN :
{
<COMMENT: (~["\n","\r"])* ("\n"|"\r"|"\r\n")? > : DEFAULT
}
<IN_LC0> SPECIAL_TOKEN : { <LONGCOMMENT0: "]]" > : DEFAULT }
<IN_LC1> SPECIAL_TOKEN : { <LONGCOMMENT1: "]=]" > : DEFAULT }
<IN_LC2> SPECIAL_TOKEN : { <LONGCOMMENT2: "]==]" > : DEFAULT }
<IN_LC3> SPECIAL_TOKEN : { <LONGCOMMENT3: "]===]" > : DEFAULT }
<IN_LCN> SPECIAL_TOKEN : { <LONGCOMMENTN: "]====" ("=")* "]" > : DEFAULT }
<IN_LS0> TOKEN : { <LONGSTRING0: "]]" > : DEFAULT }
<IN_LS1> TOKEN : { <LONGSTRING1: "]=]" > : DEFAULT }
<IN_LS2> TOKEN : { <LONGSTRING2: "]==]" > : DEFAULT }
<IN_LS3> TOKEN : { <LONGSTRING3: "]===]" > : DEFAULT }
<IN_LSN> TOKEN : { <LONGSTRINGN: "]====" ("=")* "]" > : DEFAULT }
<IN_LC0,IN_LC1,IN_LC2,IN_LC3,IN_LCN,IN_LS0,IN_LS1,IN_LS2,IN_LS3,IN_LSN> MORE :
{
< ~[] >
}
/* RESERVED WORDS AND LITERALS */
TOKEN :
{
<AND: "and">
| <BREAK: "break">
| <DO: "do">
| <ELSE: "else">
| <ELSEIF: "elseif">
| <END: "end">
| <FALSE: "false">
| <FOR: "for">
| <FUNCTION: "function">
| <IF: "if">
| <IN: "in">
| <LOCAL: "local">
| <NIL: "nil">
| <NOT: "not">
| <OR: "or">
| <RETURN: "return">
| <REPEAT: "repeat">
| <THEN: "then">
| <TRUE: "true">
| <UNTIL: "until">
| <WHILE: "while">
}
/* LITERALS */
TOKEN :
{
< NAME: ["a"-"z", "A"-"Z", "_"] (["a"-"z", "A"-"Z", "_", "0"-"9"])* >
| < NUMBER: <HEX> | <FLOAT> >
| < #FLOAT: (<DIGIT>)+ "." (<DIGIT>)* (<EXP>)? | "." (<DIGIT>)+ (<EXP>)? | (<DIGIT>)+ (<EXP>)? >
| < #DIGIT: ["0"-"9"] >
| < #EXP: ["e","E"] (["+","-"])? (<DIGIT>)+ >
| < #HEX: "0" ["x","X"] (<HEXDIGIT>)+ >
| < #HEXDIGIT: ["0"-"9","a"-"f","A"-"F"] >
| < STRING: "\"" (<QUOTED> | ~["\\","\""])* "\"" >
| < CHARSTRING: "'" (<QUOTED> | ~["\\","'"])* "'" >
| < #QUOTED: <DECIMAL> | <UNICODE> | <CHAR> >
| < #DECIMAL: "\\" ["0"-"9"] (["0"-"9"])? (["0"-"9"])? >
| < #UNICODE: "\\" "u" <HEXDIGIT> <HEXDIGIT> <HEXDIGIT> <HEXDIGIT> >
//| < #CHAR: "\\" ("a"|"b"|"f"|"n"|"r"|"t"|"v"|"["|"]"|"'"|"\""|"\\"|"0"|<LF>) >
| < #CHAR: "\\" (~[]) >
| < #LF: ("\n" | "\r" | "\r\n") >
}
/** Root production. */
Chunk Chunk():
{
Block b;
}
{
b=Block() <EOF> { return new Chunk(b); }
}
Block Block():
{
Block b = new Block();
Stat s;
}
{
(s=Stat() (";")? {b.add(s);} )* (s=LastStat() (";")? {b.add(s);} )? { return b; }
}
Stat Stat():
{
Block b,b2;
Exp e,e2,e3=null;
Stat s;
FuncName fn;
FuncBody fb;
Token n;
List<Name> nl;
List<Exp> el=null;
}
{
<DO> b=Block() <END> { return Stat.block(b); }
| <WHILE> e=Exp() <DO> b=Block() <END> { return Stat.whiledo(e,b); }
| <REPEAT> b=Block() <UNTIL> e=Exp() { return Stat.repeatuntil(b,e); }
| s=IfThenElse() { return s; }
| LOOKAHEAD(3) <FOR> n=<NAME> "=" e=Exp() "," e2=Exp() ( "," e3=Exp() )? <DO> b=Block() <END> { return Stat.fornumeric(n.image,e,e2,e3,b); }
| <FOR> nl=NameList() <IN> el=ExpList() <DO> b=Block() <END> { return Stat.forgeneric(nl,el,b); }
| <FUNCTION> fn=FuncName() fb=FuncBody() { return Stat.functiondef(fn,fb); }
| LOOKAHEAD(2) <LOCAL> <FUNCTION> n=<NAME> fb=FuncBody() { return Stat.localfunctiondef(n.image,fb); }
| <LOCAL> nl=NameList() ( "=" el=ExpList() )? { return Stat.localassignment(nl,el); }
| s=ExprStat() { return s; }
}
Stat IfThenElse():
{
Block b,b2,b3=null;
Exp e,e2;
List<Exp> el=null;
List<Block> bl=null;
}
{
<IF> e=Exp()
<THEN> b=Block()
(<ELSEIF> e2=Exp() <THEN> b2=Block() {
if (el==null) el=new ArrayList<Exp>();
if (bl==null) bl=new ArrayList<Block>();
el.add(e2);
bl.add(b2);
} )*
(<ELSE> b3=Block())? <END>
{ return Stat.ifthenelse(e,b,el,bl,b3); }
}
Stat LastStat():
{
List<Exp> el=null;
}
{
<BREAK> { return Stat.breakstat(); }
| <RETURN> ( el=ExpList() )? { return Stat.returnstat(el); }
}
Stat ExprStat():
{
PrimaryExp pe;
Assign as=null;
}
{
pe=PrimaryExp() ( as=Assign(assertvarexp(pe)) )?
{ return as==null? Stat.functioncall(assertfunccall(pe)): Stat.assignment(as); }
}
Assign Assign(VarExp v0):
{
List<VarExp> vl = new ArrayList<VarExp>();
vl.add(v0);
VarExp ve;
List<Exp> el;
}
{
( "," ve=VarExp() { vl.add(ve); } )* "=" el=ExpList() { return new Assign(vl,el); }
}
VarExp VarExp():
{
PrimaryExp pe;
}
{
pe=PrimaryExp() { return assertvarexp(pe); }
}
FuncName FuncName():
{
FuncName fn;
Token n;
}
{
n=<NAME> {fn=new FuncName(n.image);}
( "." n=<NAME> {fn.adddot(n.image);} )*
( ":" n=<NAME> {fn.method=n.image;} )?
{return fn;}
}
PrimaryExp PrefixExp():
{
Token n;
Exp e;
}
{
n=<NAME> { return PrimaryExp.nameprefix(n.image); }
| "(" e=Exp() ")" { return PrimaryExp.parensprefix(e); }
}
PrimaryExp PrimaryExp():
{
PrimaryExp pe;
PostfixOp po;
}
{
pe=PrefixExp() ( LOOKAHEAD(2) po=PostfixOp() {pe=pe.append(po);} )* { return pe; }
}
PostfixOp PostfixOp():
{
Token n;
Exp e;
FuncArgs a;
}
{
"." n=<NAME> { return PostfixOp.fieldop(n.image); }
| "[" e=Exp() "]" { return PostfixOp.indexop(e); }
| ":" n=<NAME> a=FuncArgs() { return PostfixOp.methodop(n.image,a); }
| a=FuncArgs() { return PostfixOp.functionop(a); }
}
FuncArgs FuncArgs():
{
List<Exp> el=null;
TableConstructor tc;
LuaString s;
}
{
"(" ( el=ExpList() )? ")" { return FuncArgs.explist(el); }
| tc=TableConstructor() { return FuncArgs.tableconstructor(tc); }
| s=Str() { return FuncArgs.string(s); }
}
List<Name> NameList():
{
List<Name> nl = new ArrayList<Name>();
Token name;
}
{
name=<NAME> {nl.add(new Name(name.image));} ( LOOKAHEAD(2) "," name=<NAME> {nl.add(new Name(name.image));} )* {return nl;}
}
List<Exp> ExpList():
{
List<Exp> el = new ArrayList<Exp>();
Exp e;
}
{
e=Exp() {el.add(e);} ( "," e=Exp() {el.add(e);} )* {return el;}
}
Exp SimpleExp():
{
Token n;
LuaString s;
Exp e;
TableConstructor tc;
}
{
<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; }
| e=PrimaryExp() { return e; }
}
LuaString Str():
{}
{
<STRING> { return Str.quoteString(token.image); }
| <CHARSTRING> { return Str.charString(token.image); }
| <LONGSTRING0> { return Str.longString(token.image); }
| <LONGSTRING1> { return Str.longString(token.image); }
| <LONGSTRING2> { return Str.longString(token.image); }
| <LONGSTRING3> { return Str.longString(token.image); }
| <LONGSTRINGN> { return Str.longString(token.image); }
}
Exp Exp():
{
Exp e,s;
int op;
}
{
( e=SimpleExp() | op=Unop() s=Exp() {e=Exp.unaryexp(op,s);})
(LOOKAHEAD(2) op=Binop() s=Exp() {e=Exp.binaryexp(e,op,s);} )* { return e; }
}
FuncBody Function():
{
FuncBody fb;
}
{
<FUNCTION> fb=FuncBody() { return fb; }
}
FuncBody FuncBody():
{
FuncBody fb = new FuncBody();
ParList pl;
Block b;
}
{
"(" ( pl=ParList() { fb.parlist=pl; } )? ")" b=Block() { fb.block=b; } <END> { return fb; }
}
ParList ParList():
{
ParList pl = new ParList();
List<Name> nl;
}
{
nl=NameList() { pl.namelist=nl; } ( "," "..." { pl.isvararg=true; } )? { return pl; }
| "..." { pl.isvararg=true; return pl; }
}
TableConstructor TableConstructor():
{
TableConstructor tc = new TableConstructor();
List<Field> fl = null;
}
{
"{" ( fl=FieldList() {tc.fields=fl;} )? "}" { return tc; }
}
List<Field> FieldList():
{
List<Field> fl = new ArrayList<Field>();
Field f;
}
{
f=Field() {fl.add(f);} (LOOKAHEAD(2) FieldSep() f=Field() {fl.add(f);})* (FieldSep())? { return fl; }
}
Field Field():
{
Token name;
Exp exp,rhs;
}
{
"[" exp=Exp() "]" "=" rhs=Exp() { return Field.keyedField(exp,rhs); }
| LOOKAHEAD(2) name=<NAME> "=" rhs=Exp() { return Field.namedField(name.image,rhs); }
| rhs=Exp() { return Field.listField(rhs); }
}
void FieldSep():
{}
{
"," | ";"
}
int Binop():
{}
{
"+" { return Lua.OP_ADD; }
| "-" { return Lua.OP_SUB; }
| "*" { return Lua.OP_MUL; }
| "/" { return Lua.OP_DIV; }
| "^" { return Lua.OP_POW; }
| "%" { return Lua.OP_MOD; }
| ".." { return Lua.OP_CONCAT; }
| "<" { return Lua.OP_LT; }
| "<=" { return Lua.OP_LE; }
| ">" { return Lua.OP_GT; }
| ">=" { return Lua.OP_GE; }
| "==" { return Lua.OP_EQ; }
| "~=" { return Lua.OP_NEQ; }
| <AND> { return Lua.OP_AND; }
| <OR> { return Lua.OP_OR; }
}
int Unop():
{}
{
"-" { return Lua.OP_UNM; }
| <NOT> { return Lua.OP_NOT; }
| "#" { return Lua.OP_LEN; }
}

7
src/core/org/luaj/vm2/Lua.java
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@@ -229,6 +229,13 @@ public class Lua {
public static final int NUM_OPCODES = OP_VARARG + 1;
/* pseudo-opcodes used in parsing only. */
public static final int OP_GT = 63; // >
public static final int OP_GE = 62; // >=
public static final int OP_NEQ = 61; // ~=
public static final int OP_AND = 60; // and
public static final int OP_OR = 59; // or
/*===========================================================================
Notes:
(*) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1,

32
src/jse/org/luaj/vm2/ast/Assign.java Normal file
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@@ -0,0 +1,32 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.List;
public class Assign extends Exp {
public Assign(List<VarExp> vl, List<Exp> el) {
// TODO Auto-generated constructor stub
}
}

37
src/jse/org/luaj/vm2/ast/Block.java Normal file
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@@ -0,0 +1,37 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.ArrayList;
import java.util.List;
public class Block {
public List<Stat> stats;
public void add(Stat s) {
if ( stats == null )
stats = new ArrayList<Stat>();
stats.add(s);
}
}

30
src/jse/org/luaj/vm2/ast/Chunk.java Normal file
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@@ -0,0 +1,30 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class Chunk {
public final Block block;
public Chunk(Block b) {
this.block = b;
}
}

53
src/jse/org/luaj/vm2/ast/Exp.java Normal file
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@@ -0,0 +1,53 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import org.luaj.vm2.LuaValue;
public class Exp {
public static Exp constant(LuaValue value) {
// TODO Auto-generated method stub
return null;
}
public static Exp varargs() {
// TODO Auto-generated method stub
return null;
}
public static Exp tableconstructor(TableConstructor tc) {
// TODO Auto-generated method stub
return null;
}
public static Exp unaryexp(int op, Exp s) {
// TODO Auto-generated method stub
return null;
}
public static Exp binaryexp(Exp e, int op, Exp s) {
// TODO Auto-generated method stub
return null;
}
}

47
src/jse/org/luaj/vm2/ast/Field.java Normal file
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@@ -0,0 +1,47 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class Field {
public final Exp index;
public final String name;
public final Exp rhs;
public Field(Exp index, String name, Exp rhs) {
this.index = index;
this.name = name;
this.rhs = rhs;
}
public static Field keyedField(Exp index, Exp rhs) {
return new Field(index, null, rhs);
}
public static Field namedField(String name, Exp rhs) {
return new Field(null, name, rhs);
}
public static Field listField(Exp rhs) {
return new Field(null, null, rhs);
}
}

45
src/jse/org/luaj/vm2/ast/FuncArgs.java Normal file
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@@ -0,0 +1,45 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.List;
import org.luaj.vm2.LuaString;
public class FuncArgs {
/** exp1,exp2... */
public static FuncArgs explist(List<Exp> explist) {
return null;
}
/** {...} */
public static FuncArgs tableconstructor(TableConstructor table) {
return null;
}
/** "mylib" */
public static FuncArgs string(LuaString s) {
return null;
}
}

27
src/jse/org/luaj/vm2/ast/FuncBody.java Normal file
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@@ -0,0 +1,27 @@
/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class FuncBody {
public ParList parlist;
public Block block;
}

26
src/jse/org/luaj/vm2/ast/FuncCall.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class FuncCall extends PrimaryExp {
}

49
src/jse/org/luaj/vm2/ast/FuncName.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.ArrayList;
import java.util.List;
public class FuncName {
// example: a.b.c.d:e
// initial base name: "a"
public final String base;
// intermediate field accesses: "b", "c", "d"
public List<String> dots;
// optional final method name: "e"
public String method;
public FuncName( String base ) {
this.base = base;
}
public void adddot(String dot) {
if ( dots == null )
dots = new ArrayList<String>();
dots.add(dot);
}
}

29
src/jse/org/luaj/vm2/ast/Name.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class Name {
public final String luaname;
public Name(String luaname) {
this.luaname = luaname;
}
}

29
src/jse/org/luaj/vm2/ast/ParList.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.List;
public class ParList {
public List<Name> namelist;
public boolean isvararg;
}

58
src/jse/org/luaj/vm2/ast/PostfixOp.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class PostfixOp {
/** foo[exp] */
public static PostfixOp indexop(Exp e) {
// TODO Auto-generated method stub
return null;
}
/** foo.name */
public static PostfixOp fieldop(String name) {
// TODO Auto-generated method stub
return null;
}
/** foo:name(args) */
public static PostfixOp methodop(String name, FuncArgs args) {
// TODO Auto-generated method stub
return null;
}
/** foo(args) */
public static PostfixOp functionop(FuncArgs a) {
// TODO Auto-generated method stub
return null;
}
public boolean isvarop() {
return false;
}
public boolean isfunccall() {
return false;
}
}

54
src/jse/org/luaj/vm2/ast/PrimaryExp.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.ArrayList;
import java.util.List;
public class PrimaryExp extends Exp {
List<PostfixOp> ops;
public static PrimaryExp nameprefix(String image) {
return null;
}
public static PrimaryExp parensprefix(Exp e) {
return null;
}
public PrimaryExp append(PostfixOp op) {
if ( ops == null )
ops = new ArrayList<PostfixOp>();
ops.add( op );
return this;
}
public boolean isvarexp() {
return ops != null && ops.get(ops.size()-1).isvarop();
}
public boolean isfunccall() {
return ops != null && ops.get(ops.size()-1).isfunccall();
}
}

94
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.List;
public class Stat {
public static Stat block(Block b) {
// TODO Auto-generated method stub
return null;
}
public static Stat whiledo(Exp e, Block b) {
// TODO Auto-generated method stub
return null;
}
public static Stat repeatuntil(Block b, Exp e) {
// TODO Auto-generated method stub
return null;
}
public static Stat breakstat() {
// TODO Auto-generated method stub
return null;
}
public static Stat returnstat(List<Exp> el) {
// TODO Auto-generated method stub
return null;
}
public static Stat assignment(Assign as) {
// TODO Auto-generated method stub
return null;
}
public static Stat functioncall(PrimaryExp pe) {
// TODO Auto-generated method stub
return null;
}
public static Stat localfunctiondef(String image, FuncBody fb) {
// TODO Auto-generated method stub
return null;
}
public static Stat fornumeric(String image, Exp e, Exp e2, Exp e3, Block b) {
// TODO Auto-generated method stub
return null;
}
public static Stat functiondef(FuncName fn, FuncBody fb) {
// TODO Auto-generated method stub
return null;
}
public static Stat forgeneric(List<Name> nl, List<Exp> el, Block b) {
// TODO Auto-generated method stub
return null;
}
public static Stat localassignment(List<Name> nl, List<Exp> el) {
// TODO Auto-generated method stub
return null;
}
public static Stat ifthenelse(Exp e, Block b, List<Exp> el, List<Block> bl,
Block b3) {
// TODO Auto-generated method stub
return null;
}
}

63
src/jse/org/luaj/vm2/ast/Str.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import org.luaj.vm2.LuaString;
public class Str {
public final byte[] bytes;
public final boolean isutf8;
public Str(byte[] bytes) {
this.bytes = bytes;
this.isutf8 = true; // TODO: scan to see
}
public static LuaString quoteString(String image) {
String s = image.substring(1, image.length()-1);
byte[] bytes = unquote(s);
// TODO: check for non-utf8
return LuaString.valueOf(bytes);
}
public static LuaString charString(String image) {
String s = image.substring(1, image.length()-1);
byte[] bytes = unquote(s);
// TODO: check for non-utf8
return LuaString.valueOf(bytes);
}
public static LuaString longString(String image) {
int i = image.indexOf('[', image.indexOf('[')+1);
String s = image.substring(i,image.length()-i);
return LuaString.valueOf(s);
}
public static byte[] unquote(String s) {
// TODO: unquote string data
return utf8decode(s);
}
private static byte[] utf8decode(String s) {
try {
return s.getBytes("UTF8");
} catch ( Exception e ) {
throw new RuntimeException("utf8 nto found: "+e);
}
}
}

28
src/jse/org/luaj/vm2/ast/TableConstructor.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
import java.util.List;
public class TableConstructor {
public List<Field> fields;
}

26
src/jse/org/luaj/vm2/ast/VarExp.java Normal file
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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;
public class VarExp extends PrimaryExp {
}