From d3b66100f5fc6459d9d466e20bf0b2054d617b85 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 8 Oct 2012 00:27:36 +0100 Subject: split out operator body generation --- src/jsapi-libdom-operator.c | 184 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 src/jsapi-libdom-operator.c (limited to 'src/jsapi-libdom-operator.c') diff --git a/src/jsapi-libdom-operator.c b/src/jsapi-libdom-operator.c new file mode 100644 index 0000000..64a5059 --- /dev/null +++ b/src/jsapi-libdom-operator.c @@ -0,0 +1,184 @@ +/* operator body generation + * + * This file is part of nsgenjsbind. + * Licensed under the MIT License, + * http://www.opensource.org/licenses/mit-license.php + * Copyright 2012 Vincent Sanders + */ + +#include +#include +#include +#include +#include + +#include "options.h" +#include "genjsbind-ast.h" +#include "webidl-ast.h" +#include "jsapi-libdom.h" + +static void +define_ret_value(struct binding *binding, struct webidl_node *operator_list) +{ + operator_list = operator_list; + fprintf(binding->outfile, "\tjsval jsretval = JSVAL_VOID;\n"); +} + +static void +output_operation_input(struct binding *binding, + struct webidl_node *operation_list) +{ +/* + if (!JS_ConvertArguments(cx, argc, JSAPI_ARGV(cx, vp), "S", &u16_txt)) { + return JS_FALSE; + } + + JSString_to_char(u16_txt, txt, length); + +*/ + + struct webidl_node *arglist; + + arglist = webidl_node_find(operation_list, + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_LIST); + + arglist = webidl_node_getnode(arglist); + +} + +static void +output_operation_code_block(struct binding *binding, + struct genbind_node *operation_list) +{ + struct genbind_node *code_node; + + code_node = genbind_node_find_type(operation_list, + NULL, + GENBIND_NODE_TYPE_CBLOCK); + if (code_node != NULL) { + fprintf(binding->outfile, + "%s\n", + genbind_node_gettext(code_node)); + } +} + + +static int webidl_operator_body_cb(struct webidl_node *node, void *ctx) +{ + struct binding *binding = ctx; + struct webidl_node *ident_node; + struct genbind_node *operation_node; + + ident_node = webidl_node_find(webidl_node_getnode(node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_IDENT); + + if (ident_node == NULL) { + /* operation without identifier - must have special keyword + * http://www.w3.org/TR/WebIDL/#idl-operations + */ + } else { + /* normal operation with identifier */ + + fprintf(binding->outfile, + "static JSBool JSAPI_NATIVE(%s, JSContext *cx, uintN argc, jsval *vp)\n", + webidl_node_gettext(ident_node)); + fprintf(binding->outfile, + "{\n"); + + fprintf(binding->outfile, + "\tstruct jsclass_private *private;\n"); + + /* creates the return value variable with a default value */ + define_ret_value(binding, webidl_node_getnode(node)); + + fprintf(binding->outfile, + "\n" + "\tprivate = JS_GetInstancePrivate(cx,\n" + "\t\t\tJS_THIS_OBJECT(cx,vp),\n" + "\t\t\t&jsclass_object,\n" + "\t\t\tNULL);\n" + "\tif (priv == NULL)\n" + "\t\treturn JS_FALSE;\n"); + + + output_operation_input(binding, webidl_node_getnode(node)); + + operation_node = genbind_node_find_type_ident(binding->gb_ast, + NULL, + GENBIND_NODE_TYPE_OPERATION, + webidl_node_gettext(ident_node)); + + if (operation_node != NULL) { + output_operation_code_block(binding, + genbind_node_getnode(operation_node)); + + } + + /* set return value an return true */ + fprintf(binding->outfile, + "\tJSAPI_SET_RVAL(cx, vp, jsretval);\n" + "\treturn JS_TRUE;\n" + "}\n\n"); + } + return 0; +} + + + +/* exported interface documented in jsapi-libdom.h */ +int +output_operator_body(struct binding *binding, const char *interface) +{ + struct webidl_node *interface_node; + struct webidl_node *members_node; + struct webidl_node *inherit_node; + + /* find interface in webidl with correct ident attached */ + interface_node = webidl_node_find_type_ident(binding->wi_ast, + WEBIDL_NODE_TYPE_INTERFACE, + interface); + + if (interface_node == NULL) { + fprintf(stderr, + "Unable to find interface %s in loaded WebIDL\n", + interface); + return -1; + } + + members_node = webidl_node_find(webidl_node_getnode(interface_node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_LIST); + while (members_node != NULL) { + + fprintf(binding->outfile,"/**** %s ****/\n", interface); + + /* for each function emit a JSAPI_FS()*/ + webidl_node_for_each_type(webidl_node_getnode(members_node), + WEBIDL_NODE_TYPE_OPERATION, + webidl_operator_body_cb, + binding); + + members_node = webidl_node_find(webidl_node_getnode(interface_node), + members_node, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_LIST); + } + + /* check for inherited nodes and insert them too */ + inherit_node = webidl_node_find(webidl_node_getnode(interface_node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_INTERFACE_INHERITANCE); + + if (inherit_node != NULL) { + return output_operator_body(binding, + webidl_node_gettext(inherit_node)); + } + + return 0; +} -- cgit v1.2.3