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comparison src/luan/interp/ExpList.java @ 31:5cf15507d77e

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separate interpreter from interface git-svn-id: https://luan-java.googlecode.com/svn/trunk@32 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 13 Dec 2012 02:50:04 +0000
parents 3b22ffbdb83a
children e3624b7cd603
comparison
equal deleted inserted replaced
30:8d8f4f5caef4 31:5cf15507d77e
2 2
3 import java.util.List; 3 import java.util.List;
4 import java.util.ArrayList; 4 import java.util.ArrayList;
5 import java.util.Collections; 5 import java.util.Collections;
6 import luan.LuaException; 6 import luan.LuaException;
7 import luan.LuaState;
8 7
9 8
10 final class ExpList implements Expressions { 9 final class ExpList implements Expressions {
11 10
12 private interface Adder { 11 private interface Adder {
13 public void addTo(LuaState lua,List<Object> list) throws LuaException; 12 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException;
14 } 13 }
15 14
16 private static class ExprAdder implements Adder { 15 private static class ExprAdder implements Adder {
17 private final Expr expr; 16 private final Expr expr;
18 17
19 ExprAdder(Expr expr) { 18 ExprAdder(Expr expr) {
20 this.expr = expr; 19 this.expr = expr;
21 } 20 }
22 21
23 public void addTo(LuaState lua,List<Object> list) throws LuaException { 22 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException {
24 list.add( expr.eval(lua) ); 23 list.add( expr.eval(lua) );
25 } 24 }
26 25
27 } 26 }
28 27
31 30
32 ExpressionsAdder(Expressions expressions) { 31 ExpressionsAdder(Expressions expressions) {
33 this.expressions = expressions; 32 this.expressions = expressions;
34 } 33 }
35 34
36 public void addTo(LuaState lua,List<Object> list) throws LuaException { 35 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException {
37 for( Object val : expressions.eval(lua) ) { 36 for( Object val : expressions.eval(lua) ) {
38 list.add( val ); 37 list.add( val );
39 } 38 }
40 } 39 }
41 40
69 } 68 }
70 69
71 private static final Object[] EMPTY = new Object[0]; 70 private static final Object[] EMPTY = new Object[0];
72 71
73 static final Expressions emptyExpList = new Expressions() { 72 static final Expressions emptyExpList = new Expressions() {
74 @Override public Object[] eval(LuaState lua) { 73 @Override public Object[] eval(LuaStateImpl lua) {
75 return EMPTY; 74 return EMPTY;
76 } 75 }
77 }; 76 };
78 77
79 static class SingleExpList implements Expressions { 78 static class SingleExpList implements Expressions {
81 80
82 SingleExpList(Expr expr) { 81 SingleExpList(Expr expr) {
83 this.expr = expr; 82 this.expr = expr;
84 } 83 }
85 84
86 @Override public Object[] eval(LuaState lua) throws LuaException { 85 @Override public Object[] eval(LuaStateImpl lua) throws LuaException {
87 return new Object[]{expr.eval(lua)}; 86 return new Object[]{expr.eval(lua)};
88 } 87 }
89 } 88 }
90 89
91 private final Adder[] adders; 90 private final Adder[] adders;
92 91
93 private ExpList(Adder[] adders) { 92 private ExpList(Adder[] adders) {
94 this.adders = adders; 93 this.adders = adders;
95 } 94 }
96 95
97 @Override public Object[] eval(LuaState lua) throws LuaException { 96 @Override public Object[] eval(LuaStateImpl lua) throws LuaException {
98 List<Object> list = new ArrayList<Object>(); 97 List<Object> list = new ArrayList<Object>();
99 for( Adder adder : adders ) { 98 for( Adder adder : adders ) {
100 adder.addTo(lua,list); 99 adder.addTo(lua,list);
101 } 100 }
102 return list.toArray(); 101 return list.toArray();