# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1280380045 -28800
# Node ID 123e7eeff10c19b2fb79963320494469fc16ee03
# Parent  2030e5d9f7f730f430846e678aa525647717c445
Generate JS binding for a function

diff -r 2030e5d9f7f7 -r 123e7eeff10c nodejs/observer.m4
--- a/nodejs/observer.m4	Thu Jul 29 01:37:15 2010 +0800
+++ b/nodejs/observer.m4	Thu Jul 29 13:07:25 2010 +0800
@@ -11,3 +11,5 @@
 	       [OBJ([observer], [observer_t])]),
         METHOD([remove_observer], [subject_remove_observer],
 	       (OBJ([observer], [observer_t])), 1, [])])
+
+FUNCTION([load], [my_load], [INT(sz), STR(name)], 2, [OBJ([test],[test_t])])
diff -r 2030e5d9f7f7 -r 123e7eeff10c tools/gen_v8_binding.m4
--- a/tools/gen_v8_binding.m4	Thu Jul 29 01:37:15 2010 +0800
+++ b/tools/gen_v8_binding.m4	Thu Jul 29 13:07:25 2010 +0800
@@ -96,13 +96,13 @@
 
 define([START_METHOD_ARG_VAR], [dnl
 define([INT], [dnl
-    int $][1];)dnl
+    int arg_$][1];)dnl
 define([OBJ], [dnl
-    $][2 *$][1];)dnl
+    $][2 *arg_$][1];)dnl
 define([STR], [dnl
-    char *$][1];)dnl
+    char *arg_$][1];)dnl
 define([FUNC], [
-    Handle<Function> $][1];)dnl
+    Handle<Function> arg_$][1];)dnl
 ])
 
 define([START_METHOD_ARG_TYPE_CHK], [dnl
@@ -118,20 +118,20 @@
 
 define([START_METHOD_ARG_ASSIGN], [dnl
 define([INT], [
-    $][1 = args[[i++]]->Int32Value();])dnl
+    arg_$][1 = args[[i++]]->Int32Value();])dnl
 define([OBJ], [
-    $][1 = ($][2 *)UNWRAP(args[[i++]]->ToObject());])dnl
+    arg_$][1 = ($][2 *)UNWRAP(args[[i++]]->ToObject());])dnl
 define([STR], [
-    $][1 = strdup(*String::Utf8Value(args[[i++]]->ToString()));])dnl
+    arg_$][1 = strdup(*String::Utf8Value(args[[i++]]->ToString()));])dnl
 define([FUNC], [
-    $][1 = Function::Cast(args[[i++]]);])dnl
+    arg_$][1 = Function::Cast(args[[i++]]);])dnl
 ])
 
 define([START_METHOD_ARG_PASS], [dnl
-define([INT], [$][1])dnl
-define([OBJ], [$][1])dnl
-define([STR], [$][1])dnl
-define([FUNC], [$][1])dnl
+define([INT], [arg_$][1])dnl
+define([OBJ], [arg_$][1])dnl
+define([STR], [arg_$][1])dnl
+define([FUNC], [arg_$][1])dnl
 ])
 
 define([START_METHOD_RET_VAL], [dnl
@@ -161,7 +161,7 @@
     return Integer::New(_ret);
 ])dnl
 define([OBJ], [
-    return PROJ_PREFIX[]STRUCT_NAME[]_$][1[]_new(_ret);
+    return PROJ_PREFIX[]$][1[]_new(_ret);
 ])dnl
 define([STR], [
     return String::New(_ret);
@@ -224,7 +224,7 @@
 define([STRUCT_TYPE], [$2])dnl
 [
 /* **************************************************
- * STRUCT: $1
+ * [STRUCT]: $1
  * Generated by gen_v8_binding.m4
  */
 static Handle<Value>
@@ -267,4 +267,44 @@
     PROJ_PREFIX[$1][_temp = Persistent<FunctionTemplate>::New(func_temp);
 }]dnl
 ])
+
+define([FUNCTION], [dnl
+/* **************************************************
+ * [FUNCTION]: $1
+ * Generated by gen_v8_binding.m4
+ */
+static Handle<Value>
+PROJ_PREFIX[]$1(const Arguments &args) {
+    int argc = args.Length();
+foreach([ITER], ($3), [START_METHOD_ARG_VAR[]ITER[]STOP_METHOD_ARG])dnl
+START_METHOD_RET_VAL[]$5[]STOP_METHOD_ARG[]dnl
+    
+    if(argc != $4)
+        THROW("Invalid number of arguments (!=$][4)");
+    i = 0;
+    if(0]dnl
+[foreach([ITER], ($3), [START_METHOD_ARG_TYPE_CHK[]ITER[]STOP_METHOD_ARG]))
+        THROW("Invalid argument type");
+
+    i = 0;
+foreach([ITER], ($3), [START_METHOD_ARG_ASSIGN[]ITER[]STOP_METHOD_ARG]))
+
+define([SEP], [])dnl
+    START_METHOD_RET_ASSIGN[]$5[]STOP_METHOD_ARG[]$2(foreach([ITER], ($3), [START_METHOD_ARG_PASS[]SEP[]ITER[]STOP_METHOD_ARG[]define([SEP], [, ])]));[]undefine([SEP])
+START_METHOD_RET[]$][5[]STOP_METHOD_ARG[]dnl
+ifelse($][5, [], [
+    return Null();
+])dnl
+}
+static Persistent<FunctionTemplate> PROJ_PREFIX[]$1[]_temp;
+
+static void
+PROJ_PREFIX[]$1[]_init(void) {
+    Handle<FunctionTemplate> func_temp;
+
+    func_temp = FunctionTemplate::New(PROJ_PREFIX[]$1);
+    PROJ_PREFIX[]$1[]_temp = Persistent<FunctionTemplate>::New(func_temp);
+}
+])
+
 divert([])dnl