Flex/Bison interop utils

Flex/Bison interop utils for easier integration. More...

Collaboration diagram for Flex/Bison interop utils:

Modules
	Helpers for flex and bison driver frontends

Data Structures
struct	scan_callbacks_t
	scanner function callbacks for flex and bison More...
struct	parse_result_t

Macros
#define	CT_CALLBACKS(id, prefix)
	callback boilerplate macro More...

Enumerations
enum	parse_error_t {   eParseOk , eParseInitError , eParseScanError , eParseReject ,   eParseCount }

Functions
CT_INTEROP_API parse_result_t	scan_buffer (scan_t *scan, const scan_callbacks_t *callbacks)
	parse the contents of a scanner into a language specific ast More...

Detailed Description

Flex/Bison interop utils for easier integration.

Macro Definition Documentation

CT_CALLBACKS

#define CT_CALLBACKS	(		id,
			prefix
	)

Value:

    static int prefix##_##id##_##init(scan_t *extra, void *scanner)                             \
    {                                                                                           \
        return prefix##lex_init_extra(extra, (yyscan_t *)scanner);                              \
    }                                                                                           \
    static int prefix##_##id##_parse(void *scanner, scan_t *extra)                              \
    {                                                                                           \
        return prefix##parse(scanner, (scan_t *)extra);                                         \
    }                                                                                           \
    static void *prefix##_##id##_scan(const char *text, size_t size, void *scanner)             \
    {                                                                                           \
        CTASSERTF(size <= INT_MAX, #prefix "_scan (size = %zu > %d, name = %s)", size, INT_MAX, \
                  scan_path((scan_t *)scanner));                                                \
        return prefix##_scan_bytes(text, (int)size, scanner);                                   \
    }                                                                                           \
    static void prefix##_##id##_destroy_buffer(void *buffer, void *scanner)                     \
    {                                                                                           \
        prefix##_delete_buffer((YY_BUFFER_STATE)buffer, scanner);                               \
    }                                                                                           \
    static void prefix##_##id##_destroy(void *scanner)                                          \
    {                                                                                           \
        prefix##lex_destroy(scanner);                                                           \
    }                                                                                           \
    static const scan_callbacks_t id = {                                                        \
        .init = prefix##_##id##_##init,                                                         \
        .parse = prefix##_##id##_parse,                                                         \
        .scan = prefix##_##id##_scan,                                                           \
        .destroy_buffer = prefix##_##id##_destroy_buffer,                                       \
        .destroy = prefix##_##id##_destroy,                                                     \
    }

callback boilerplate macro

generate callback boilerplate for scan_buffer

Parameters

id	the name of the generated callback object
prefix	the prefix assigned to flex and bison functions

Definition at line 42 of file compile.h.

Enumeration Type Documentation

parse_error_t

enum parse_error_t

Enumerator
eParseOk	parse was successful
eParseInitError	error initializing the scanner internals (our fault)
eParseScanError	entered invalid state during scanning (our fault)
eParseReject	failed due to invalid input (users fault)
eParseCount

Definition at line 73 of file compile.h.

Function Documentation

scan_buffer()

CT_INTEROP_API parse_result_t scan_buffer	(	scan_t *	scan,
		const scan_callbacks_t *	callbacks
	)

parse the contents of a scanner into a language specific ast

Note

callbacks should be generated via CT_CALLBACKS

Parameters

scan	the sanner being used
callbacks	the flex/bison callbacks

Returns

the parse result

Definition at line 26 of file compile.c.