diff options
Diffstat (limited to 'src/webidl-ast.c')
| -rw-r--r-- | src/webidl-ast.c | 94 |
1 files changed, 81 insertions, 13 deletions
diff --git a/src/webidl-ast.c b/src/webidl-ast.c index 945b5fa..6c24c41 100644 --- a/src/webidl-ast.c +++ b/src/webidl-ast.c @@ -11,10 +11,17 @@ #include <stdio.h> #include <string.h> #include <errno.h> +#include <stdarg.h> +#include "utils.h" #include "webidl-ast.h" #include "options.h" +/** + * standard IO handle for parse trace logging. + */ +static FILE *webidl_parsetracef; + extern int webidl_debug; extern int webidl__flex_debug; extern void webidl_restart(FILE*); @@ -386,13 +393,16 @@ static const char *webidl_node_type_to_str(enum webidl_node_type type) } - -/* exported interface defined in webidl-ast.h */ -int webidl_ast_dump(struct webidl_node *node, int indent) +/** + * Recursively dump the AST nodes increasing indent as appropriate + */ +static int webidl_ast_dump(FILE *dumpf, struct webidl_node *node, int indent) { - const char *SPACES=" "; char *txt; + const char *SPACES=" "; + char *txt; while (node != NULL) { - printf("%.*s%s", indent, SPACES, webidl_node_type_to_str(node->type)); + fprintf(dumpf, "%.*s%s", indent, SPACES, + webidl_node_type_to_str(node->type)); txt = webidl_node_gettext(node); if (txt == NULL) { @@ -401,20 +411,43 @@ int webidl_ast_dump(struct webidl_node *node, int indent) next = webidl_node_getnode(node); if (next != NULL) { - printf("\n"); - webidl_ast_dump(next, indent + 2); + fprintf(dumpf, "\n"); + webidl_ast_dump(dumpf, next, indent + 2); } else { /* not txt or node has to be an int */ - printf(": %d\n", webidl_node_getint(node)); + fprintf(dumpf, ": %d\n", + webidl_node_getint(node)); } } else { - printf(": \"%s\"\n", txt); + fprintf(dumpf, ": \"%s\"\n", txt); } node = node->l; } return 0; } +/* exported interface documented in webidl-ast.h */ +int webidl_dump_ast(struct webidl_node *node) +{ + FILE *dumpf; + + /* only dump AST to file if required */ + if (!options->debug) { + return 0; + } + + dumpf = genb_fopen("webidl-ast", "w"); + if (dumpf == NULL) { + return 2; + } + + webidl_ast_dump(dumpf, node, 0); + + fclose(dumpf); + + return 0; +} + /* exported interface defined in webidl-ast.h */ static FILE *idlopen(const char *filename) { @@ -444,8 +477,8 @@ static FILE *idlopen(const char *filename) /* exported interface defined in webidl-ast.h */ int webidl_parsefile(char *filename, struct webidl_node **webidl_ast) { - FILE *idlfile; + int ret; idlfile = idlopen(filename); if (!idlfile) { @@ -455,16 +488,51 @@ int webidl_parsefile(char *filename, struct webidl_node **webidl_ast) return 2; } - if (options->debug) { + /* if debugging enabled enable parser tracing and send to file */ + if (options->debug) { + char *tracename; + int tracenamelen; webidl_debug = 1; webidl__flex_debug = 1; - } + + tracenamelen = SLEN("webidl--trace") + strlen(filename) + 1; + tracename = malloc(tracenamelen); + snprintf(tracename, tracenamelen,"webidl-%s-trace", filename); + webidl_parsetracef = genb_fopen(tracename, "w"); + free(tracename); + } else { + webidl_parsetracef = NULL; + } /* set flex to read from file */ webidl_restart(idlfile); /* parse the file */ - return webidl_parse(webidl_ast); + ret = webidl_parse(webidl_ast); + + /* close tracefile if open */ + if (webidl_parsetracef != NULL) { + fclose(webidl_parsetracef); + } + return ret; +} + +/* exported interface defined in webidl-ast.h */ +int webidl_fprintf(FILE *stream, const char *format, ...) +{ + va_list ap; + int ret; + + va_start(ap, format); + + if (webidl_parsetracef == NULL) { + ret = vfprintf(stream, format, ap); + } else { + ret = vfprintf(webidl_parsetracef, format, ap); + } + va_end(ap); + + return ret; } /* unlink a child node from a parent */ |