From 12f32ab2d843a4a70b5ebe055e7b2155270692e3 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 29 Oct 2012 22:33:51 +0000 Subject: split out property generation --- src/jsapi-libdom-property.c | 231 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 231 insertions(+) create mode 100644 src/jsapi-libdom-property.c (limited to 'src/jsapi-libdom-property.c') diff --git a/src/jsapi-libdom-property.c b/src/jsapi-libdom-property.c new file mode 100644 index 0000000..8d8afa2 --- /dev/null +++ b/src/jsapi-libdom-property.c @@ -0,0 +1,231 @@ +/* property generation + * + * This file is part of nsgenbind. + * 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 "nsgenbind-ast.h" +#include "webidl-ast.h" +#include "jsapi-libdom.h" + +static int webidl_property_spec_cb(struct webidl_node *node, void *ctx) +{ + struct binding *binding = ctx; + struct webidl_node *ident_node; + struct webidl_node *modifier_node; + + ident_node = webidl_node_find(webidl_node_getnode(node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_IDENT); + + modifier_node = webidl_node_find(webidl_node_getnode(node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_MODIFIER); + + if (ident_node == NULL) { + /* properties must have an operator + * http://www.w3.org/TR/WebIDL/#idl-attributes + */ + return 1; + } else { + if (webidl_node_getint(modifier_node) == WEBIDL_TYPE_READONLY) { + fprintf(binding->outfile, + " JSAPI_PS_RO(%s, 0, JSPROP_ENUMERATE | JSPROP_SHARED),\n", + webidl_node_gettext(ident_node)); + } else { + fprintf(binding->outfile, + " JSAPI_PS(%s, 0, JSPROP_ENUMERATE | JSPROP_SHARED),\n", + webidl_node_gettext(ident_node)); + } + } + return 0; +} + +static int +generate_property_spec(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_ATTRIBUTE, + webidl_property_spec_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 generate_property_spec(binding, + webidl_node_gettext(inherit_node)); + } + + return 0; +} + +int +output_property_spec(struct binding *binding) +{ + int res; + + fprintf(binding->outfile, + "static JSPropertySpec jsclass_properties[] = {\n"); + + res = generate_property_spec(binding, binding->interface); + + fprintf(binding->outfile, " JSAPI_PS_END\n};\n\n"); + + return res; +} + +static int webidl_property_body_cb(struct webidl_node *node, void *ctx) +{ + struct binding *binding = ctx; + struct webidl_node *ident_node; + struct webidl_node *modifier_node; + + ident_node = webidl_node_find(webidl_node_getnode(node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_IDENT); + + if (ident_node == NULL) { + /* properties must have an operator + * http://www.w3.org/TR/WebIDL/#idl-attributes + */ + return 1; + } + + modifier_node = webidl_node_find(webidl_node_getnode(node), + NULL, + webidl_cmp_node_type, + (void *)WEBIDL_NODE_TYPE_MODIFIER); + + + if (webidl_node_getint(modifier_node) != WEBIDL_TYPE_READONLY) { + /* no readonly so a set function is required */ + + fprintf(binding->outfile, + "static JSBool JSAPI_PROPERTYSET(%s, JSContext *cx, JSObject *obj, jsval *vp)\n", + webidl_node_gettext(ident_node)); + fprintf(binding->outfile, + "{\n" + " return JS_FALSE;\n" + "}\n\n"); + } + + fprintf(binding->outfile, + "static JSBool JSAPI_PROPERTYGET(%s, JSContext *cx, JSObject *obj, jsval *vp)\n", + webidl_node_gettext(ident_node)); + fprintf(binding->outfile, + "{\n" + " JS_SET_RVAL(cx, vp, JSVAL_NULL);\n" + " return JS_TRUE;\n"); + fprintf(binding->outfile, "}\n\n"); + + + return 0; +} + + +int +output_property_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 property body */ + webidl_node_for_each_type(webidl_node_getnode(members_node), + WEBIDL_NODE_TYPE_ATTRIBUTE, + webidl_property_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_property_body(binding, + webidl_node_gettext(inherit_node)); + } + + return 0; +} -- cgit v1.2.3