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Refactor call stack and its use throughout. CallFrame now does all bytecode processing, and the callframe is reinitialized anytime something might have changed, like a function call.

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James Roseborough
2007-06-27 06:43:33 +00:00
parent 93fc4699a9
commit c8e1934916
20 changed files with 548 additions and 136 deletions
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26
src/main/java/lua/Builtin.java
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@@ -12,7 +12,7 @@ final class Builtin extends LFunction {
static void addBuiltins(LTable table) {
for ( int i=0; i<NAMES.length; i++ )
table.m_hash.put( new LString( NAMES[i] ), new Builtin(i) );
table.put( NAMES[i], new Builtin(i) );
}
private static final int PRINT = 0;
@@ -32,35 +32,35 @@ final class Builtin extends LFunction {
}
// perform a lua call
public void luaStackCall(StackState state, int base, int top, int nresults) {
public void luaStackCall(CallFrame call, int base, int top, int nresults) {
switch ( id ) {
case PRINT:
for ( int i=base+1; i<top; i++ ) {
System.out.print( state.stack[i].luaAsString() );
System.out.print( call.stack[i].luaAsString() );
System.out.print( "\t" );
}
System.out.println();
state.top = base;
call.top = base;
break;
case PAIRS:
LValue value = state.stack[base+1].luaPairs();
state.stack[base] = value;
state.top = base+1;
LValue value = call.stack[base+1].luaPairs();
call.stack[base] = value;
call.top = base+1;
break;
case GETMETATABLE:
state.stack[base] = state.stack[base+1].luaGetMetatable();
state.top = base+1;
call.stack[base] = call.stack[base+1].luaGetMetatable();
call.top = base+1;
break;
case SETMETATABLE:
state.stack[base+1].luaSetMetatable(state.stack[base+2]);
state.stack[base] = state.stack[base+1];
state.top = base+1;
call.stack[base+1].luaSetMetatable(call.stack[base+2]);
call.stack[base] = call.stack[base+1];
call.top = base+1;
break;
default:
luaUnsupportedOperation();
}
if (nresults >= 0)
state.adjustTop(base + nresults);
call.adjustTop(base + nresults);
}
}