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/* AST generator for the WEB IDL parser
*
* This file is part of nsgenjsbind.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2012 Vincent Sanders <vince@netsurf-browser.org>
*/
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "webidl-ast.h"
#include "options.h"
extern int webidl_debug;
extern int webidl__flex_debug;
extern void webidl_restart(FILE*);
extern int webidl_parse(struct webidl_node **webidl_ast);
struct webidl_node *
webidl_node_link(struct webidl_node *tgt, struct webidl_node *src)
{
if (tgt != NULL) {
tgt->l = src;
return tgt;
}
return src;
}
struct webidl_node *webidl_node_new(enum webidl_node_type type, struct webidl_node *l, void *r)
{
struct webidl_node *nn;
nn = calloc(1, sizeof(struct webidl_node));
nn->type = type;
nn->l = l;
nn->r.text = r;
return nn;
}
int
webidl_node_for_each_type(struct webidl_node *node,
enum webidl_node_type type,
webidl_callback_t *cb,
void *ctx)
{
int ret;
if (node == NULL) {
return -1;
}
if (node->l != NULL) {
ret = webidl_node_for_each_type(node->l, type, cb, ctx);
if (ret != 0) {
return ret;
}
}
if (node->type == type) {
return cb(node, ctx);
}
return 0;
}
char *webidl_node_gettext(struct webidl_node *node)
{
switch(node->type) {
case WEBIDL_NODE_TYPE_INTERFACE_IDENT:
case WEBIDL_NODE_TYPE_INTERFACE_INHERITANCE:
return node->r.text;
default:
return NULL;
}
}
struct webidl_node *webidl_node_getnode(struct webidl_node *node)
{
switch(node->type) {
case WEBIDL_NODE_TYPE_ROOT:
case WEBIDL_NODE_TYPE_INTERFACE:
case WEBIDL_NODE_TYPE_INTERFACE_MEMBERS:
return node->r.node;
default:
return NULL;
}
}
static const char *webidl_node_type_to_str(enum webidl_node_type type)
{
switch(type) {
case WEBIDL_NODE_TYPE_ROOT:
return "root";
case WEBIDL_NODE_TYPE_INTERFACE_IDENT:
return "Interface: Ident";
case WEBIDL_NODE_TYPE_INTERFACE_INHERITANCE:
return "Interface: Inherit";
case WEBIDL_NODE_TYPE_INTERFACE:
return "Interface";
case WEBIDL_NODE_TYPE_INTERFACE_MEMBERS:
return "Interface: Members";
default:
return "Unknown";
}
}
int webidl_ast_dump(struct webidl_node *node)
{
char *txt;
while (node != NULL) {
printf("%s\n", webidl_node_type_to_str(node->type));
txt = webidl_node_gettext(node);
if (txt == NULL) {
webidl_ast_dump(webidl_node_getnode(node));
} else {
printf(" %s\n", txt);
}
node = node->l;
}
return 0;
}
static FILE *idlopen(const char *filename)
{
FILE *idlfile;
if (options->idlpath == NULL) {
if (options->verbose) {
printf("Opening IDL file %s\n", filename);
}
idlfile = fopen(filename, "r");
} else {
char *fullname;
int fulllen = strlen(options->idlpath) + strlen(filename) + 2;
fullname = malloc(fulllen);
snprintf(fullname, fulllen, "%s/%s", options->idlpath, filename);
if (options->verbose) {
printf("Opening IDL file %s\n", fullname);
}
idlfile = fopen(fullname, "r");
free(fullname);
}
return idlfile;
}
int webidl_parsefile(char *filename, struct webidl_node **webidl_ast)
{
FILE *idlfile;
idlfile = idlopen(filename);
if (!idlfile) {
fprintf(stderr, "Error opening %s: %s\n",
filename,
strerror(errno));
return 2;
}
if (options->debug) {
webidl_debug = 1;
webidl__flex_debug = 1;
}
/* set flex to read from file */
webidl_restart(idlfile);
/* parse the file */
return webidl_parse(webidl_ast);
}
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