Mercurial Hosting > luan

comparison src/luan/interp/ExpList.java @ 40:e3624b7cd603

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
implement stack trace git-svn-id: https://luan-java.googlecode.com/svn/trunk@41 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 21 Dec 2012 10:45:54 +0000
parents 5cf15507d77e
children 64ecb7a3aad7
comparison
equal deleted inserted replaced
39:e5bcb1eeafc1 40:e3624b7cd603
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.LuaSource;
7 8
8 9
9 final class ExpList implements Expressions { 10 final class ExpList implements Expressions {
10 11
11 private interface Adder { 12 private interface Adder {
12 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException; 13 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException;
14 public Code code();
13 } 15 }
14 16
15 private static class ExprAdder implements Adder { 17 private static class ExprAdder implements Adder {
16 private final Expr expr; 18 private final Expr expr;
17 19
19 this.expr = expr; 21 this.expr = expr;
20 } 22 }
21 23
22 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException { 24 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException {
23 list.add( expr.eval(lua) ); 25 list.add( expr.eval(lua) );
26 }
27
28 public Code code() {
29 return expr;
24 } 30 }
25 31
26 } 32 }
27 33
28 private static class ExpressionsAdder implements Adder { 34 private static class ExpressionsAdder implements Adder {
34 40
35 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException { 41 public void addTo(LuaStateImpl lua,List<Object> list) throws LuaException {
36 for( Object val : expressions.eval(lua) ) { 42 for( Object val : expressions.eval(lua) ) {
37 list.add( val ); 43 list.add( val );
38 } 44 }
45 }
46
47 public Code code() {
48 return expressions;
39 } 49 }
40 50
41 } 51 }
42 52
43 static class Builder { 53 static class Builder {
68 } 78 }
69 79
70 private static final Object[] EMPTY = new Object[0]; 80 private static final Object[] EMPTY = new Object[0];
71 81
72 static final Expressions emptyExpList = new Expressions() { 82 static final Expressions emptyExpList = new Expressions() {
83
73 @Override public Object[] eval(LuaStateImpl lua) { 84 @Override public Object[] eval(LuaStateImpl lua) {
74 return EMPTY; 85 return EMPTY;
86 }
87
88 @Override public LuaSource.Element se() {
89 return null;
75 } 90 }
76 }; 91 };
77 92
78 static class SingleExpList implements Expressions { 93 static class SingleExpList implements Expressions {
79 private final Expr expr; 94 private final Expr expr;
82 this.expr = expr; 97 this.expr = expr;
83 } 98 }
84 99
85 @Override public Object[] eval(LuaStateImpl lua) throws LuaException { 100 @Override public Object[] eval(LuaStateImpl lua) throws LuaException {
86 return new Object[]{expr.eval(lua)}; 101 return new Object[]{expr.eval(lua)};
102 }
103
104 @Override public LuaSource.Element se() {
105 return expr.se();
87 } 106 }
88 } 107 }
89 108
90 private final Adder[] adders; 109 private final Adder[] adders;
91 110
98 for( Adder adder : adders ) { 117 for( Adder adder : adders ) {
99 adder.addTo(lua,list); 118 adder.addTo(lua,list);
100 } 119 }
101 return list.toArray(); 120 return list.toArray();
102 } 121 }
122
123 @Override public LuaSource.Element se() {
124 return new LuaSource.Element(adders[0].code().se().source,adders[0].code().se().start,adders[adders.length-1].code().se().end);
125 }
103 } 126 }