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Remove many unused and unimplemented functions.

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This commit is contained in:
James Roseborough
2008-07-24 18:32:02 +00:00
parent 00b14efa99
commit 447bc5853a
5 changed files with 23 additions and 726 deletions
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6
src/core/org/luaj/lib/BaseLib.java
View File

@@ -143,7 +143,7 @@ public class BaseLib extends LFunction {
case IPAIRS: {
LTable t = vm.checktable(2);
vm.resettop();
vm.pushjavafunction( inext );
vm.pushfunction( inext );
vm.pushlvalue( t );
vm.pushinteger( 0 );
break;
@@ -151,7 +151,7 @@ public class BaseLib extends LFunction {
case PAIRS: {
LTable t = vm.checktable(2);
vm.resettop();
vm.pushjavafunction( next );
vm.pushfunction( next );
vm.pushlvalue( t );
vm.pushnil();
break;
@@ -392,7 +392,7 @@ public class BaseLib extends LFunction {
private static LValue getfunc (LuaState vm, boolean opt) {
if ( vm.isfunction(2) )
return vm.tojavafunction(2);
return vm.tofunction(2);
else {
int level = opt? vm.optint(2, 1): vm.checkint(2);
vm.argcheck(level >= 0, 2, "level must be non-negative");

733
src/core/org/luaj/vm/LuaState.java
View File

@@ -996,31 +996,6 @@ public class LuaState extends Lua {
// Lua Java API
//===============================================================
private void notImplemented() {
throw new LuaErrorException("AbstractStack: not yet implemented");
}
/**
* Sets a new panic function and returns the old one. <span
* class="apii">[-0, +0, <em>-</em>]</span>
*
*
* <p>
* If an error happens outside any protected environment, Lua calls a
* <em>panic function</em> and then calls <code>exit(EXIT_FAILURE)</code>,
* thus exiting the host application. Your panic function may avoid this
* exit by never returning (e.g., doing a long jump).
*
*
* <p>
* The panic function can access the error message at the top of the stack.
*/
public LFunction atpanic(LFunction panicf) {
LFunction f = panic;
panic = panicf;
return f;
}
/**
* Returns the current program counter for the given call frame.
* @param ci -- A call frame
@@ -1098,170 +1073,6 @@ public class LuaState extends Lua {
throw new LuaErrorException( this, message, 1 );
}
/**
* Generates a Lua error. <span class="apii">[-1, +0, <em>v</em>]</span>
*
* <p>
* The error message (which can actually be a Lua value of any type) must be
* on the stack top. This function does a long jump, and therefore never
* returns. (see <a href="#luaL_error"><code>luaL_error</code></a>).
*
*/
public void error() {
throw new LuaErrorException( this, tostring(-1), 0);
}
/**
* Dumps a function as a binary chunk. <span class="apii">[-0, +0,
* <em>m</em>]</span>
*
* <p>
* Receives a Lua function on the top of the stack and produces a binary
* chunk that, if loaded again, results in a function equivalent to the one
* dumped. As it produces parts of the chunk, <a href="#lua_dump"><code>lua_dump</code></a>
* calls function <code>writer</code> (see <a href="#lua_Writer"><code>lua_Writer</code></a>)
* with the given <code>data</code> to write them.
* <p>
* The value returned is the error code returned by the last call to the
* writer; 0&nbsp;means no errors.
*
*
* <p>
* This function does not pop the Lua function from the stack.
*
*/
public void dump() {
notImplemented();
}
/**
* Pushes a new C&nbsp;closure onto the stack. <span class="apii">[-n, +1,
* <em>m</em>]</span>
*
*
* <p>
* When a Java&nbsp;function is created, it is possible to associate some
* values with it, thus creating a C&nbsp;closure (see <a
* href="#3.4">&sect;3.4</a>); these values are then accessible to the
* function whenever it is called. To associate values with a
* C&nbsp;function, first these values should be pushed onto the stack (when
* there are multiple values, the first value is pushed first). Then <a
* href="#lua_pushcclosure"><code>lua_pushcclosure</code></a> is called
* to create and push the C&nbsp;function onto the stack, with the argument
* <code>n</code> telling how many values should be associated with the
* function. <a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a>
* also pops these values from the stack.
*/
public void pushclosure(LFunction fn, int n) {
notImplemented();
}
/**
* Calls the C&nbsp;function <code>func</code> in protected mode. <span
* class="apii">[-0, +(0|1), <em>-</em>]</span>
*
* <p>
* <code>func</code> starts with only one element in its stack, a light
* userdata containing <code>ud</code>. In case of errors, <a
* href="#lua_cpcall"><code>lua_cpcall</code></a> returns the same error
* codes as <a href="#lua_pcall"><code>lua_pcall</code></a>, plus the
* error object on the top of the stack; otherwise, it returns zero, and
* does not change the stack. All values returned by <code>func</code> are
* discarded.
*/
public int javapcall(LFunction func, Object ud) {
this.pushjavafunction(func);
this.pushlightuserdata(ud);
return this.pcall(1, 0, 0);
}
/**
* Format and push a string. <span class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* Pushes onto the stack a formatted string and returns a pointer to this
* string. It is similar to the C&nbsp;function <code>sprintf</code>, but
* has some important differences:
*
* <ul>
*
* <li> You do not have to allocate space for the result: the result is a
* Lua string and Lua takes care of memory allocation (and deallocation,
* through garbage collection). </li>
*
* <li> The conversion specifiers are quite restricted. There are no flags,
* widths, or precisions. The conversion specifiers can only be '<code>%%</code>'
* (inserts a '<code>%</code>' in the string), '<code>%s</code>'
* (inserts a zero-terminated string, with no size restrictions), '<code>%f</code>'
* (inserts a <a href="#lua_Number"><code>lua_Number</code></a>), '<code>%p</code>'
* (inserts a pointer as a hexadecimal numeral), '<code>%d</code>'
* (inserts an <code>int</code>), and '<code>%c</code>' (inserts an
* <code>int</code> as a character). </li>
*
* </ul>
*/
public String pushfstring(String fmt, Object[] args) {
notImplemented();
return null;
}
/**
* Format and push a string. <span class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* Equivalent to <a href="#lua_pushfstring"><code>lua_pushfstring</code></a>,
* except that it receives a <code>va_list</code> instead of a variable
* number of arguments.
*/
public void pushvfstring(String format, Object[] args) {
notImplemented();
}
/**
* Test if two objects are the same object. <span class="apii">[-0, +0,
* <em>-</em>]</span>
*
* <p>
* Returns 1 if the two values in acceptable indices <code>index1</code>
* and <code>index2</code> are primitively equal (that is, without calling
* metamethods). Otherwise returns&nbsp;0. Also returns&nbsp;0 if any of the
* indices are non valid.
*/
public void rawequal(int index1, int index2) {
notImplemented();
}
/**
* Pushes a value's environment table. <span class="apii">[-0, +1,
* <em>-</em>]</span>
*
* <p>
* Pushes onto the stack the environment table of the value at the given
* index.
*/
public void getfenv(int index) {
LValue f = topointer(index);
pushlvalue( ((LClosure) f).env );
}
/**
* Set the environment for a value. <span class="apii">[-1, +0, <em>-</em>]</span>
*
* <p>
* Pops a table from the stack and sets it as the new environment for the
* value at the given index. If the value at the given index is neither a
* function nor a thread nor a userdata, <a href="#lua_setfenv"><code>lua_setfenv</code></a>
* returns false. Otherwise it returns true.
*/
public boolean setfenv(int index) {
LTable t = totable(-1);
LValue f = topointer(index);
pop(1);
return f.luaSetEnv(t);
}
/**
*
* Ensures that there are at least <code>extra</code> free stack slots in
@@ -1282,125 +1093,6 @@ public class LuaState extends Lua {
}
}
/**
* Closes the given Lua state. <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Destroys all objects in the given Lua state (calling the corresponding
* garbage-collection metamethods, if any) and frees all dynamic memory used
* by this state. On several platforms, you may not need to call this
* function, because all resources are naturally released when the host
* program ends. On the other hand, long-running programs, such as a daemon
* or a web server, might need to release states as soon as they are not
* needed, to avoid growing too large.
*/
public void close() {
stack = new LValue[20];
base = top = 0;
}
/**
* Concatenates the <code>n</code> values at the top of the stack. <span
* class="apii">[-n, +1, <em>e</em>]</span>
*
* <p>
* Concatenates the <code>n</code> values at the top of the stack, pops
* them, and leaves the result at the top. If <code>n</code>&nbsp;is&nbsp;1,
* the result is the single value on the stack (that is, the function does
* nothing); if <code>n</code> is 0, the result is the empty string.
* Concatenation is performed following the usual semantics of Lua (see <a
* href="#2.5.4">&sect;2.5.4</a>).
*/
public void concat(int n) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
for ( int i=-n; i<0; i++ ) {
LString ls = tolstring(i);
baos.write(ls.m_bytes, ls.m_offset, ls.m_length);
}
pop(n);
pushlvalue( new LString(baos.toByteArray()));
}
/**
* Creates a new empty table and pushes it onto the stack. <span
* class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* The new table has space pre-allocated for <code>narr</code> array
* elements and <code>nrec</code> non-array elements. This pre-allocation
* is useful when you know exactly how many elements the table will have.
* Otherwise you can use the function <a href="#lua_newtable"><code>lua_newtable</code></a>.
*/
public void createtable(int narr, int nrec) {
pushlvalue( new LTable(narr, nrec) );
}
/**
* Tests if two items on the stack are equal. <span class="apii">[-0, +0,
* <em>e</em>]</span>
*
* <p>
* Returns 1 if the two values in acceptable indices <code>index1</code>
* and <code>index2</code> are equal, following the semantics of the Lua
* <code>==</code> operator (that is, may call metamethods). Otherwise
* returns&nbsp;0. Also returns&nbsp;0 if any of the indices is non valid.
*
*
*/
public boolean equal(int index1, int index2) {
return topointer(index2).luaBinOpUnknown(Lua.OP_EQ,
topointer(index1)).toJavaBoolean();
}
/**
* Controls the garbage collector. <span class="apii">[-0, +0, <em>e</em>]</span>
*
* <p>
* This function performs several tasks, according to the value of the
* parameter <code>what</code>:
*
* <ul>
*
* <li><b><code>LUA_GCSTOP</code>:</b> stops the garbage collector.
* </li>
*
* <li><b><code>LUA_GCRESTART</code>:</b> restarts the garbage
* collector. </li>
*
* <li><b><code>LUA_GCCOLLECT</code>:</b> performs a full
* garbage-collection cycle. </li>
*
* <li><b><code>LUA_GCCOUNT</code>:</b> returns the current amount of
* memory (in Kbytes) in use by Lua. </li>
*
* <li><b><code>LUA_GCCOUNTB</code>:</b> returns the remainder of
* dividing the current amount of bytes of memory in use by Lua by 1024.
* </li>
*
* <li><b><code>LUA_GCSTEP</code>:</b> performs an incremental step of
* garbage collection. The step "size" is controlled by <code>data</code>
* (larger values mean more steps) in a non-specified way. If you want to
* control the step size you must experimentally tune the value of
* <code>data</code>. The function returns 1 if the step finished a
* garbage-collection cycle. </li>
*
* <li><b><code>LUA_GCSETPAUSE</code>:</b> sets <code>data</code>/100
* as the new value for the <em>pause</em> of the collector (see <a
* href="#2.10">&sect;2.10</a>). The function returns the previous value of
* the pause. </li>
*
* <li><b><code>LUA_GCSETSTEPMUL</code>:</b> sets <code>data</code>/100
* as the new value for the <em>step multiplier</em> of the collector (see
* <a href="#2.10">&sect;2.10</a>). The function returns the previous value
* of the step multiplier. </li>
*
* </ul>
*/
public void gc(int what, int data) {
notImplemented();
}
/**
* Dereference a tables field. <span class="apii">[-0, +1, <em>e</em>]</span>
*
@@ -1450,26 +1142,6 @@ public class LuaState extends Lua {
return false;
}
/**
* Dereference a table's list element. <span class="apii">[-1, +1,
* <em>e</em>]</span>
*
* <p>
* Pushes onto the stack the value <code>t[k]</code>, where
* <code>t</code> is the value at the given valid index and <code>k</code>
* is the value at the top of the stack.
*
* <p>
* This function pops the key from the stack (putting the resulting value in
* its place). As in Lua, this function may trigger a metamethod for the
* "index" event (see <a href="#2.8">&sect;2.8</a>).
*/
public void gettable(int index) {
LValue t = totable(index);
LValue k = poplvalue();
pushlvalue( this.luaV_gettable(t, k) );
}
/**
* Insert the top item somewhere in the stack. <span class="apii">[-1, +1,
* <em>-</em>]</span>
@@ -1511,29 +1183,6 @@ public class LuaState extends Lua {
return type(index) == Lua.LUA_TFUNCTION;
}
/**
* Test if a value is a JavaFunction. <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Returns 1 if the value at the given acceptable index is a
* C&nbsp;function, and 0&nbsp;otherwise.
*
*/
public boolean isjavafunction(int index) {
return topointer(index) instanceof LFunction;
}
/**
* Test if a value is light user data <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Returns 1 if the value at the given acceptable index is a light userdata,
* and 0&nbsp;otherwise.
*/
public boolean islightuserdata(int index) {
return false;
}
/**
* Test if a value is nil <span class="apii">[-0, +0, <em>-</em>]</span>
*
@@ -1545,17 +1194,6 @@ public class LuaState extends Lua {
return topointer(index).isNil();
}
/**
* Test if a value is not valid <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Returns 1 if the the given acceptable index is not valid (that is, it
* refers to an element outside the current stack), and 0&nbsp;otherwise.
*/
public boolean isnone(int index) {
return topointer(index) == null;
}
/**
* Test if a value is nil or not valid <span class="apii">[-0, +0,
* <em>-</em>]</span>
@@ -1636,136 +1274,6 @@ public class LuaState extends Lua {
return type(index) == Lua.LUA_TUSERDATA;
}
/**
* Compare two values <span class="apii">[-0, +0, <em>e</em>]</span>
*
* <p>
* Returns 1 if the value at acceptable index <code>index1</code> is
* smaller than the value at acceptable index <code>index2</code>,
* following the semantics of the Lua <code>&lt;</code> operator (that is,
* may call metamethods). Otherwise returns&nbsp;0. Also returns&nbsp;0 if
* any of the indices is non valid.
*/
public boolean lessthan(int index1, int index2) {
return topointer(index2).luaBinOpUnknown(Lua.OP_LT,
topointer(index1)).toJavaBoolean();
}
/**
* Create a table <span class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* Creates a new empty table and pushes it onto the stack. It is equivalent
* to <code>lua_createtable(L, 0, 0)</code>.
*/
public void newtable() {
pushlvalue( new LTable() );
}
/**
* Create a thread <span class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* Creates a new thread, pushes it on the stack, and returns a pointer to a
* <a href="#lua_State"><code>lua_State</code></a> that represents this
* new thread. The new state returned by this function shares with the
* original state all global objects (such as tables), but has an
* independent execution stack.
*
*
* <p>
* There is no explicit function to close or to destroy a thread. Threads
* are subject to garbage collection, like any Lua object.
*/
public void newthread() {
notImplemented();
}
/**
* Create a userdata <span class="apii">[-0, +1, <em>m</em>]</span>
*
* <p>
* This function allocates a new block of memory with the given size, pushes
* onto the stack a new full userdata with the block address, and returns
* this address.
*
*
* <p>
* Userdata represent C&nbsp;values in Lua. A <em>full userdata</em>
* represents a block of memory. It is an object (like a table): you must
* create it, it can have its own metatable, and you can detect when it is
* being collected. A full userdata is only equal to itself (under raw
* equality).
*
*
* <p>
* When Lua collects a full userdata with a <code>gc</code> metamethod,
* Lua calls the metamethod and marks the userdata as finalized. When this
* userdata is collected again then Lua frees its corresponding memory.
*/
public void newuserdata(Object o) {
pushlvalue( new LUserData(o) );
}
/**
* Traverse to the next table item. <span class="apii">[-1, +(2|0),
* <em>e</em>]</span>
*
* <p>
* Pops a key from the stack, and pushes a key-value pair from the table at
* the given index (the "next" pair after the given key). If there are no
* more elements in the table, then <a href="#lua_next"><code>lua_next</code></a>
* returns 0 (and pushes nothing).
*
*
* <p>
* A typical traversal looks like this:
*
* <pre>
* // table is in the stack at index 't'
* lua_pushnil(L); // first key
* while (lua_next(L, t) != 0) {
* // uses 'key' (at index -2) and 'value' (at index -1)
* printf(&quot;%s - %s\n&quot;, lua_typename(L, lua_type(L, -2)), lua_typename(L,
* lua_type(L, -1)));
* // removes 'value'; keeps 'key' for next iteration
* lua_pop(L, 1);
* }
* </pre>
*
* <p>
* While traversing a table, do not call <a href="#lua_tolstring"><code>lua_tolstring</code></a>
* directly on a key, unless you know that the key is actually a string.
* Recall that <a href="#lua_tolstring"><code>lua_tolstring</code></a>
* <em>changes</em> the value at the given index; this confuses the next
* call to <a href="#lua_next"><code>lua_next</code></a>.
*/
public int next(int index) {
notImplemented();
return 0;
}
/**
* Get the length of an object <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Returns the "length" of the value at the given acceptable index: for
* strings, this is the string length; for tables, this is the result of the
* length operator ('<code>#</code>'); for userdata, this is the size of
* the block of memory allocated for the userdata; for other values, it
* is&nbsp;0.
*/
public int objlen(int index) {
LValue p = topointer( index );
switch ( p.luaGetType() ) {
case LUA_TTABLE:
case LUA_TSTRING:
return p.luaLength();
default:
return 0;
}
}
/**
* Pops <code>n</code> elements from the stack. <span class="apii">[-n,
* +0, <em>-</em>]</span>
@@ -1817,41 +1325,24 @@ public class LuaState extends Lua {
}
/**
* Pushes a Java&nbsp;function onto the stack. <span class="apii">[-0, +1,
* Pushes a function onto the stack. <span class="apii">[-0, +1,
* <em>m</em>]</span>
*
* <p>
* This function receives a pointer to a C function and pushes onto the
* This function receives an LFunction and pushes onto the
* stack a Lua value of type <code>function</code> that, when called,
* invokes the corresponding C&nbsp;function.
* invokes the corresponding function.
*
*
* <p>
* Any function to be registered in Lua must follow the correct protocol to
* receive its parameters and return its results (see <a
* href="#lua_CFunction"><code>lua_CFunction</code></a>).
*
* receive its parameters and return its results
* @see LFunction
*/
public void pushjavafunction(LFunction f) {
public void pushfunction(LFunction f) {
pushlvalue( f );
}
/**
* Pushes a light userdata onto the stack. <span class="apii">[-0, +1,
* <em>-</em>]</span>
*
*
* <p>
* Userdata represent C&nbsp;values in Lua. A <em>light userdata</em>
* represents a pointer. It is a value (like a number): you do not create
* it, it has no individual metatable, and it is not collected (as it was
* never created). A light userdata is equal to "any" light userdata with
* the same C&nbsp;address.
*/
public void pushlightuserdata(Object p) {
notImplemented();
}
/**
* Push an LString onto the stack. <span class="apii">[-0, +1,
@@ -1918,16 +1409,6 @@ public class LuaState extends Lua {
pushlstring( LString.valueOf(s) );
}
/**
* Push a thread onto the stack. <span class="apii">[-0, +1, <em>-</em>]</span>
*
* Pushes the thread represented by <code>L</code> onto the stack. Returns
* 1 if this thread is the main thread of its state.
*/
public void pushthread() {
notImplemented();
}
/**
* Push a value from the stack onto the stack. <span class="apii">[-0, +1,
* <em>-</em>]</span>
@@ -1939,18 +1420,6 @@ public class LuaState extends Lua {
pushlvalue(topointer(index));
}
/**
* Do a table get without metadata calls. <span class="apii">[-1, +1,
* <em>-</em>]</span>
*
* <p>
* Similar to <a href="#lua_gettable"><code>lua_gettable</code></a>, but
* does a raw access (i.e., without metamethods).
*/
public void rawget(int index) {
pushlvalue( totable(index).get(poplvalue()) );
}
/**
* Do a integer-key table get without metadata calls. <span
* class="apii">[-0, +1, <em>-</em>]</span>
@@ -1959,65 +1428,12 @@ public class LuaState extends Lua {
* Pushes onto the stack the value <code>t[n]</code>, where
* <code>t</code> is the value at the given valid index. The access is
* raw; that is, it does not invoke metamethods.
* @deprecated should get the table and do a raw get instead
*/
public void rawgeti(int index, int n) {
pushlvalue( totable(index).get(n) );
}
/**
* Do a table set without metadata calls. <span class="apii">[-2, +0,
* <em>m</em>]</span>
*
* <p>
* Similar to <a href="#lua_settable"><code>lua_settable</code></a>, but
* does a raw assignment (i.e., without metamethods).
*/
public void rawset(int index) {
LTable t = totable(index);
LValue v = poplvalue();
LValue k = poplvalue();
t.put(k,v);
}
/**
* Do a integer-key table set without metadata calls. <span
* class="apii">[-1, +0, <em>m</em>]</span>
*
* <p>
* Does the equivalent of <code>t[n] = v</code>, where <code>t</code>
* is the value at the given valid index and <code>v</code> is the value
* at the top of the stack.
*
*
* <p>
* This function pops the value from the stack. The assignment is raw; that
* is, it does not invoke metamethods.
*/
public void rawseti(int index, int n) {
LTable t = totable(index);
LValue v = poplvalue();
t.put(n,v);
}
/**
* Register a LFunction with a specific name. <span class="apii">[-0, +0,
* <em>m</em>]</span>
*
* <p>
* Sets the function <code>f</code> as the new value of global
* <code>name</code>. It is defined as a macro:
*
* <pre>
* #define lua_register(L,n,f) \
* (lua_pushcfunction(L, f), lua_setglobal(L, n))
*
* </pre>
*/
public void register(String name, LFunction f) {
pushjavafunction(f);
setglobal(name);
}
/**
* Remove an element from the stack. <span class="apii">[-1, +0, <em>-</em>]</span>
*
@@ -2045,32 +1461,6 @@ public class LuaState extends Lua {
stack[ai] = poplvalue();
}
/**
* Starts and resumes a coroutine in a given thread. <span class="apii">[-?,
* +?, <em>-</em>]</span>
*
*
* <p>
* To start a coroutine, you first create a new thread (see <a
* href="#lua_newthread"><code>lua_newthread</code></a>); then you push
* onto its stack the main function plus any arguments; then you call <a
* href="#lua_resume"><code>lua_resume</code></a>, with
* <code>narg</code> being the number of arguments. This call returns when
* the coroutine suspends or finishes its execution. When it returns, the
* stack contains all values passed to <a href="#lua_yield"><code>lua_yield</code></a>,
* or all values returned by the body function. <a href="#lua_resume"><code>lua_resume</code></a>
* returns <a href="#pdf-LUA_YIELD"><code>LUA_YIELD</code></a> if the
* coroutine yields, 0 if the coroutine finishes its execution without
* errors, or an error code in case of errors (see <a href="#lua_pcall"><code>lua_pcall</code></a>).
* In case of errors, the stack is not unwound, so you can use the debug API
* over it. The error message is on the top of the stack. To restart a
* coroutine, you put on its stack only the values to be passed as results
* from <code>yield</code>, and then call <a href="#lua_resume"><code>lua_resume</code></a>.
*/
public void resume(int narg) {
notImplemented();
}
/**
* Set the value of a table field. <span class="apii">[-1, +0, <em>e</em>]</span>
*
@@ -2107,75 +1497,6 @@ public class LuaState extends Lua {
this.luaV_settable(_G, new LString(name), poplvalue());
}
/**
* Set the metatable of a value. <span class="apii">[-1, +0, <em>-</em>]</span>
*
* <p>
* Pops a table from the stack and sets it as the new metatable for the
* value at the given acceptable index.
*/
public void setmetatable(int index) {
LTable t = totable(index);
LValue v = poplvalue();
LValue n = t.luaSetMetatable(v);
if ( n != null ) {
pushlvalue(n);
replace(index);
}
}
/**
* Set the value of a table for a key. <span class="apii">[-2, +0,
* <em>e</em>]</span>
*
* <p>
* Does the equivalent to <code>t[k] = v</code>, where <code>t</code>
* is the value at the given valid index, <code>v</code> is the value at
* the top of the stack, and <code>k</code> is the value just below the
* top.
*
*
* <p>
* This function pops both the key and the value from the stack. As in Lua,
* this function may trigger a metamethod for the "newindex" event (see <a
* href="#2.8">&sect;2.8</a>).
*/
public void settable(int index) {
LTable t = totable(index);
LValue v = poplvalue();
LValue k = poplvalue();
this.luaV_settable(t, k, v);
}
/**
* Returns the status of the thread <code>L</code>. <span
* class="apii">[-0, +0, <em>-</em>]</span>
*
*
*
* <p>
* The status can be 0 for a normal thread, an error code if the thread
* finished its execution with an error, or <a name="pdf-LUA_YIELD"><code>LUA_YIELD</code></a>
* if the thread is suspended.
*
*/
public void status() {
notImplemented();
}
/**
* Get a thread value from the stack. <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <p>
* Converts the value at the given acceptable index to a Lua thread
* (represented as <code>lua_State*</code>). This value must be a thread;
* otherwise, the function returns <code>NULL</code>.
*/
public LuaState tothread(int index) {
notImplemented();
return null;
}
/**
* Get a value as a boolean. <span class="apii">[-0, +0, <em>-</em>]</span>
*
@@ -2214,22 +1535,23 @@ public class LuaState extends Lua {
}
/**
* Get a value as a JavaFunction.
* Get a value as a LFunction.
* <hr>
* <h3><a name="lua_tocfunction"><code>lua_tocfunction</code></a></h3>
* <h3><a name="tofunction"><code>tofunction</code></a></h3>
* <p>
* <span class="apii">[-0, +0, <em>-</em>]</span>
*
* <pre>
* lua_CFunction lua_tocfunction (lua_State *L, int index);
* LFunction tofunction (lua_State *L, int index);
* </pre>
*
* <p>
* Converts a value at the given acceptable index to a C&nbsp;function. That
* value must be a C&nbsp;function; otherwise, returns <code>NULL</code>.
* value must be a function; otherwise, returns <code>NULL</code>.
*/
public LFunction tojavafunction(int index) {
return (LFunction) topointer(index);
public LValue tofunction(int index) {
LValue v = topointer(index);
return v.isFunction()? v: LNil.NIL;
}
/**
@@ -2435,31 +1757,6 @@ public class LuaState extends Lua {
}
}
/**
* Yields a coroutine. <span class="apii">[-?, +?, <em>-</em>]</span>
*
*
* <p>
* This function should only be called as the return expression of a
* C&nbsp;function, as follows:
*
* <pre>
* return lua_yield(L, nresults);
* </pre>
*
* <p>
* When a C&nbsp;function calls <a href="#lua_yield"><code>lua_yield</code></a>
* in that way, the running coroutine suspends its execution, and the call
* to <a href="#lua_resume"><code>lua_resume</code></a> that started
* this coroutine returns. The parameter <code>nresults</code> is the
* number of values from the stack that are passed as results to <a
* href="#lua_resume"><code>lua_resume</code></a>.
*
*/
public void yield(int nresults) {
notImplemented();
}
// ============================= conversion to and from Java boxed types ====================
/**
@@ -2558,7 +1855,7 @@ public class LuaState extends Lua {
if ( o == null )
pushnil();
else
newuserdata( o );
pushlvalue( new LUserData(o) );
}

2
src/j2se/org/luaj/lib/j2se/LuajavaLib.java
View File

@@ -126,7 +126,7 @@ public final class LuajavaLib extends LFunction {
final int ninterfaces = Math.max(0,vm.gettop()-2);
if ( ninterfaces <= 0 )
throw new LuaErrorException("no interfaces");
final LValue function = vm.tojavafunction(-1);
final LValue function = vm.tofunction(-1);
try {
// get the interfaces
final Class[] ifaces = new Class[ninterfaces];

4
src/test/java/org/luaj/vm/LuaStateTest.java
View File

@@ -25,7 +25,7 @@ public class LuaStateTest extends TestCase {
public void testFuncCall() throws IOException {
vm.pushstring("bogus");
vm.pushjavafunction(new SomeFunc( "arg" ));
vm.pushfunction(new SomeFunc( "arg" ));
vm.pushstring("arg");
vm.call(1, 1);
assertEquals( 2, vm.gettop() );
@@ -36,7 +36,7 @@ public class LuaStateTest extends TestCase {
public void testFuncCall2() throws IOException {
vm.pushstring("bogus");
vm.pushjavafunction(new SomeFunc( "nil" ));
vm.pushfunction(new SomeFunc( "nil" ));
vm.call(0, 1);
assertEquals( 2, vm.gettop() );
assertEquals( "bogus", vm.tostring(1) );

2
version.properties
View File

@@ -1 +1 @@
version: 0.42
version: 0.43