open-autonomous-connection/luaj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

Partial implementation of metatables.

Browse Source
This commit is contained in:
James Roseborough
2007-06-16 15:31:27 +00:00
parent 7449605d56
commit 5d3c86e552
10 changed files with 108 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/main/java/lua/Builtin.java
View File

@@ -18,8 +18,10 @@ final class Builtin extends LFunction {
private static final int PRINT = 0;
private static final int PAIRS = 1;
private static final int GETMETATABLE = 2;
private static final int SETMETATABLE = 3;
private static final String[] NAMES = { "print", "pairs" };
private static final String[] NAMES = { "print", "pairs", "getmetatable", "setmetatable" };
private int id;
private Builtin( int id ) {
@@ -31,7 +33,7 @@ final class Builtin extends LFunction {
}
// perform a lua call
public void luaStackCall(StackState state, int base, int top) {
public void luaStackCall(StackState state, int base, int top, int nresults) {
switch ( id ) {
case PRINT:
for ( int i=base+1; i<top; i++ ) {
@@ -39,16 +41,26 @@ final class Builtin extends LFunction {
System.out.print( "\t" );
}
System.out.println();
state.adjustTop(base);
return;
state.top = base;
break;
case PAIRS:
LValue value = state.stack[base+1].luaPairs();
state.top = base+1;
state.stack[base] = value;
return;
state.top = base+1;
break;
case GETMETATABLE:
state.stack[base] = state.stack[base+1].luaGetMetatable();
state.top = base+1;
break;
case SETMETATABLE:
state.stack[base+1].luaSetMetatable(state.stack[base+2]);
state.top = base;
break;
default:
luaUnsupportedOperation();
}
if (nresults >= 0)
state.adjustTop(base + nresults);
}
}