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authormidipix <writeonce@midipix.org>2016-10-26 21:15:06 -0400
committermidipix <writeonce@midipix.org>2016-10-26 22:10:32 -0400
commit1480f4c5e527f28c559c7b341d2b24e72aec445c (patch)
treee328cf1072112d80cf214a54bbbb20b1c3203ca3
parent2c6143fdb0cc12997a2a09268f4797931f73947d (diff)
downloadapimagic-1480f4c5e527f28c559c7b341d2b24e72aec445c.tar.bz2
apimagic-1480f4c5e527f28c559c7b341d2b24e72aec445c.tar.xz
output: added amgc_output_error_record(), amgc_output_error_vector().
-rw-r--r--include/apimagic/apimagic.h7
-rw-r--r--project/common.mk1
-rw-r--r--src/output/amgc_output_error.c212
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);
+}