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/*
* Copyright (c) 2021, Masatake YAMATO
* Copyright (c) 2021, Red Hat, Inc.
*
* This source code is released for free distribution under the terms of the
* GNU General Public License version 2 or (at your option) any later version.
*
* This module contains functions for generating tags for Function::Parameters perl extension.
* https://metacpan.org/pod/Function::Parameters
*
* This parser is inspired by the pull request submitted by Jim Butler (@jimmygoogle).
*/
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include "entry.h"
#include "kind.h"
#include "parse.h"
#include "perl.h"
#include <string.h>
/*
* DATA DECLARATIONS
*/
enum FParamsKind {
K_METHOD,
K_FUN,
};
static kindDefinition FParamsKinds[] = {
{ true, 'm', "method", "methods" },
{ true, 'f', "fun", "functions" },
};
struct FParamsSubparser {
perlSubparser perl;
bool notInFParams;
bool inPod;
};
/*
* FUNCTION PROTOTYPES
*/
static void inputStart (subparser *s);
static void makeTagEntryNotify (subparser *s, const tagEntryInfo *tag, int corkIndex);
static void enterFParams (struct FParamsSubparser *fparms);
static void leaveFParams (struct FParamsSubparser *fparams);
static void enteringPodNotify (perlSubparser *perl);
static void leavingPodNotify (perlSubparser *perl);
/*
* DATA DEFINITIONS
*/
static struct FParamsSubparser fparamsSubparser = {
.perl = {
.subparser = {
.direction = SUBPARSER_BI_DIRECTION,
.inputStart = inputStart,
.makeTagEntryNotify = makeTagEntryNotify,
},
.enteringPodNotify = enteringPodNotify,
.leavingPodNotify = leavingPodNotify,
}
};
/*
* FUNCTION DEFINITIONS
*/
static void inputStart (subparser *s)
{
struct FParamsSubparser *fparams = (struct FParamsSubparser *)s;
fparams->notInFParams = true;
fparams->inPod = false;
}
static void makeTagEntryNotify (subparser *s, const tagEntryInfo *tag, int corkIndex)
{
perlSubparser *perl = (perlSubparser *)s;
struct FParamsSubparser *fparams = (struct FParamsSubparser *)perl;
if (isTagExtraBitMarked(tag, XTAG_QUALIFIED_TAGS))
return;
if (tag->kindIndex == KIND_PERL_MODULE)
{
if (isRoleAssigned(tag, ROLE_PERL_MODULE_USED)
&& strcmp (tag->name, "Function::Parameters") == 0)
enterFParams (fparams);
else if (isRoleAssigned(tag, ROLE_PERL_MODULE_UNUSED)
&& strcmp (tag->name, "Function::Parameters") == 0)
leaveFParams (fparams);
}
}
static void enterFParams (struct FParamsSubparser *fparams)
{
fparams->notInFParams = false;
}
static void leaveFParams (struct FParamsSubparser *fparams)
{
fparams->notInFParams = true;
}
static void enteringPodNotify (perlSubparser *perl)
{
struct FParamsSubparser *fparams = (struct FParamsSubparser *)perl;
fparams->inPod = true;
}
static void leavingPodNotify (perlSubparser *perl)
{
struct FParamsSubparser *fparams = (struct FParamsSubparser *)perl;
fparams->inPod = false;
}
static bool findFParamsObject (const char * line, const regexMatch *matches, unsigned int count,
void *userData)
{
struct FParamsSubparser *fparams = (struct FParamsSubparser *)userData;
if (fparams->inPod)
return false;
const char *kindHint = line + matches[1].start;
int kind = kindHint [0] == 'm'? K_METHOD: K_FUN;
char *name = eStrndup (line + matches[2].start, matches[2].length);
tagEntryInfo e;
initTagEntry (&e, name, kind);
makeTagEntry (&e);
eFree (name);
return true;
}
static void findFParamsTags (void)
{
scheduleRunningBaseparser (RUN_DEFAULT_SUBPARSERS);
}
static void initializeFParamsParser (langType language)
{
addLanguageCallbackRegex (language, "^[ \t]*(method|fun)[ \t]+([a-zA-Z_][a-zA-Z0-9_]*)[ \t]*\\(",
NULL,
findFParamsObject, &fparamsSubparser.notInFParams,
&fparamsSubparser);
}
extern parserDefinition* FunctionParametersParser (void)
{
parserDefinition* const def = parserNew("FunctionParameters");
static parserDependency dependencies [] = {
[0] = { DEPTYPE_SUBPARSER, "Perl", &fparamsSubparser },
};
def->dependencies = dependencies;
def->dependencyCount = ARRAY_SIZE (dependencies);
def->kindTable = FParamsKinds;
def->kindCount = ARRAY_SIZE(FParamsKinds);
def->initialize = initializeFParamsParser;
def->parser = findFParamsTags;
return def;
}
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