diff options
| -rw-r--r-- | include/apimagic/apimagic.h | 7 | ||||
| -rw-r--r-- | project/common.mk | 1 | ||||
| -rw-r--r-- | src/output/amgc_output_error.c | 212 |
3 files changed, 220 insertions, 0 deletions
diff --git a/include/apimagic/apimagic.h b/include/apimagic/apimagic.h index 462c2f1..64a444b 100644 --- a/include/apimagic/apimagic.h +++ b/include/apimagic/apimagic.h @@ -41,6 +41,10 @@ extern "C" { #define AMGC_DRIVER_VERSION 0x0010 #define AMGC_DRIVER_DRY_RUN 0x0020 +#define AMGC_DRIVER_ANNOTATE_ALWAYS 0x10000000 +#define AMGC_DRIVER_ANNOTATE_NEVER 0x20000000 +#define AMGC_DRIVER_ANNOTATE_FULL 0x40000000 + /* error flags */ #define AMGC_ERROR_TOP_LEVEL 0x0001 #define AMGC_ERROR_NESTED 0x0002 @@ -227,6 +231,9 @@ amgc_api int amgc_output_unit_functions(const struct amgc_unit_ctx *, const str amgc_api int amgc_perform_unit_action (const struct amgc_unit_ctx *, const struct amgc_action *, const struct amgc_layout *, FILE *); amgc_api int amgc_output_unit_entities (const struct amgc_unit_ctx *, int kind, int subset, const struct amgc_layout *, FILE *); +amgc_api int amgc_output_error_record (const struct amgc_driver_ctx *, const struct amgc_error_info *); +amgc_api int amgc_output_error_vector (const struct amgc_driver_ctx *); + amgc_api int amgc_get_entity_index (const struct amgc_entity[], const char *); amgc_api int amgc_get_define_index (const struct amgc_unit_ctx *, const char *); amgc_api int amgc_get_enum_index (const struct amgc_unit_ctx *, const char *); diff --git a/project/common.mk b/project/common.mk index 7bae076..75226a9 100644 --- a/project/common.mk +++ b/project/common.mk @@ -12,6 +12,7 @@ COMMON_SRCS = \ src/output/amgc_output_compound.c \ src/output/amgc_output_entities.c \ src/output/amgc_output_enum.c \ + src/output/amgc_output_error.c \ src/output/amgc_output_pad_symbol.c \ src/output/amgc_output_typedef.c \ src/skin/amgc_skin_default.c \ diff --git a/src/output/amgc_output_error.c b/src/output/amgc_output_error.c new file mode 100644 index 0000000..1706894 --- /dev/null +++ b/src/output/amgc_output_error.c @@ -0,0 +1,212 @@ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> +#include <apimagic/apimagic.h> + +static const char aclr_reset[] = "\x1b[0m"; +static const char aclr_bold[] = "\x1b[1m"; + +static const char aclr_red[] = "\x1b[31m"; +static const char aclr_green[] = "\x1b[32m"; +static const char aclr_blue[] = "\x1b[34m"; +static const char aclr_magenta[] = "\x1b[35m"; + +static const char const * const amgc_error_strings[AMGC_ERR_CAP] = { + [AMGC_ERR_FLOW_ERROR] = "flow error: unexpected condition or other", + [AMGC_ERR_FLEE_ERROR] = "flees and bugs and cats and mice", + [AMGC_ERR_NULL_CONTEXT] = "null driver or unit context", + [AMGC_ERR_NULL_SOURCE] = "source file does not define any data", + [AMGC_ERR_INVALID_CONTEXT] = "invalid driver or unit context", + [AMGC_ERR_INVALID_SOURCE] = "invalid source file", + [AMGC_ERR_SOURCE_SIZE_ZERO] = "cannot map an empty source file", +}; + +static const char * amgc_output_error_header(const struct amgc_error_info * erri) +{ + if (erri->eflags & AMGC_ERROR_CHILD) + return "exec error upon"; + + else if (erri->eflags & AMGC_ERROR_TOP_LEVEL) + return "error logged in"; + + else if (erri->eflags & AMGC_ERROR_NESTED) + return "< returned to >"; + + else + return "distorted state"; +} + +static const char * amgc_output_unit_header(const struct amgc_error_info * erri) +{ + if (!(erri->eflags & AMGC_ERROR_CUSTOM)) + return "while opening"; + + else if (erri->elibcode == AMGC_ERR_SOURCE_SIZE_ZERO) + return "while mapping"; + + else + return "while parsing"; +} + +static const char * amgc_output_strerror(const struct amgc_error_info * erri) +{ + if (erri->eflags & AMGC_ERROR_CUSTOM) + return ((erri->elibcode < 0) || (erri->elibcode >= AMGC_ERR_CAP)) + ? "internal error: please report to the maintainer" + : amgc_error_strings[erri->elibcode]; + + else if (erri->eflags & AMGC_ERROR_NESTED) + return ""; + + else if (erri->eflags & AMGC_ERROR_CHILD) + return "(see child process error messages)"; + + else if (erri->esyscode == ENOBUFS) + return "input error: string length exceeds buffer size."; + + else + return strerror(erri->esyscode); +} + +static int amgc_output_error_record_plain( + const struct amgc_driver_ctx * dctx, + const struct amgc_error_info * erri) +{ + const char * epath; + const char * errdesc = amgc_output_strerror(erri); + + epath = erri->euctx + ? *erri->euctx->path + : erri->eunit; + + if (epath && !(erri->eflags & AMGC_ERROR_NESTED)) + if (fprintf(stderr,"%s: [%s] '%s':\n", + dctx->program, + amgc_output_unit_header(erri), + epath) < 0) + return -1; + + if (fprintf(stderr,"%s: %s %s(), line %d%s%s.\n", + dctx->program, + amgc_output_error_header(erri), + erri->efunction, + erri->eline, + strlen(errdesc) ? ": " : "", + errdesc) < 0) + return -1; + + return fflush(stderr); +} + +static int amgc_output_error_record_annotated( + const struct amgc_driver_ctx * dctx, + const struct amgc_error_info * erri) +{ + const char * epath; + const char * errdesc = amgc_output_strerror(erri); + + epath = erri->euctx + ? *erri->euctx->path + : erri->eunit; + + if (epath && !(erri->eflags & AMGC_ERROR_NESTED)) + if (fprintf( + stderr, + "%s%s%s:%s %s[%s]%s %s%s'%s'%s:\n", + + aclr_bold,aclr_magenta, + dctx->program, + aclr_reset, + + aclr_bold, + amgc_output_unit_header(erri), + aclr_reset, + + aclr_bold,aclr_red, + epath, + aclr_reset) < 0) + return -1; + + if (fprintf( + stderr, + "%s%s%s:%s %s%s%s %s%s%s()%s, %s%sline %d%s%s%s%s%s.\n", + + aclr_bold,aclr_magenta, + dctx->program, + aclr_reset, + + aclr_bold, + amgc_output_error_header(erri), + aclr_reset, + + aclr_bold,aclr_blue, + erri->efunction, + aclr_reset, + + aclr_bold,aclr_green, + erri->eline, + aclr_reset, + strlen(errdesc) ? ": " : "", + + aclr_bold, + amgc_output_strerror(erri), + aclr_reset) < 0) + return -1; + + return fflush(stderr); +} + +int amgc_output_error_record( + const struct amgc_driver_ctx * dctx, + const struct amgc_error_info * erri) +{ + if (dctx->cctx->drvflags & AMGC_DRIVER_ANNOTATE_NEVER) + return amgc_output_error_record_plain(dctx,erri); + + else if (dctx->cctx->drvflags & AMGC_DRIVER_ANNOTATE_ALWAYS) + return amgc_output_error_record_annotated(dctx,erri); + + else if (isatty(STDERR_FILENO)) + return amgc_output_error_record_annotated(dctx,erri); + + else + return amgc_output_error_record_plain(dctx,erri); +} + +static int amgc_output_error_vector_plain(const struct amgc_driver_ctx * dctx) +{ + struct amgc_error_info ** perr; + + for (perr=dctx->errv; *perr; perr++) + if (amgc_output_error_record_plain(dctx,*perr)) + return -1; + + return 0; +} + +static int amgc_output_error_vector_annotated(const struct amgc_driver_ctx * dctx) +{ + struct amgc_error_info ** perr; + + for (perr=dctx->errv; *perr; perr++) + if (amgc_output_error_record_annotated(dctx,*perr)) + return -1; + + return 0; +} + +int amgc_output_error_vector(const struct amgc_driver_ctx * dctx) +{ + if (dctx->cctx->drvflags & AMGC_DRIVER_ANNOTATE_NEVER) + return amgc_output_error_vector_plain(dctx); + + else if (dctx->cctx->drvflags & AMGC_DRIVER_ANNOTATE_ALWAYS) + return amgc_output_error_vector_annotated(dctx); + + else if (isatty(STDERR_FILENO)) + return amgc_output_error_vector_annotated(dctx); + + else + return amgc_output_error_vector_plain(dctx); +} |