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exposed moo_lookupdic_noseterr() which doesn't set error information upon failure so as to avoid setting error information unnecessarily during method lookup(moo_findmethod(), etc)

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This commit is contained in:
hyunghwan.chung 2018-12-10 13:34:31 +00:00
parent 1d3d7aee4c
commit 8d10b4a5fa
4 changed files with 22 additions and 5 deletions
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16
moo/lib/dic.c
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@ -197,7 +197,7 @@ oops:
return MOO_NULL;
}
static moo_oop_association_t lookup (moo_t* moo, moo_oop_dic_t dic, const moo_oocs_t* name)
moo_oop_association_t moo_lookupdic_noseterr (moo_t* moo, moo_oop_dic_t dic, const moo_oocs_t* name)
{
/* this is special version of moo_getatsysdic() that performs
* lookup using a plain string specified */
@ -228,10 +228,22 @@ static moo_oop_association_t lookup (moo_t* moo, moo_oop_dic_t dic, const moo_oo
}
/* when value is MOO_NULL, perform no insertion */
moo_seterrbfmt (moo, MOO_ENOENT, "unable to find %.*js in a dictionary", name->len, name->ptr);
/* moo_seterrXXX() is not called here. the dictionary lookup is very frequent
* and so is lookup failure. for instance, moo_findmethod() calls this over
* a class chain. there might be a failure at each class level. it's waste to
* set the error information whenever the failure occurs.
* the caller of this function must set the error information upon failure */
return MOO_NULL;
}
static MOO_INLINE moo_oop_association_t lookup (moo_t* moo, moo_oop_dic_t dic, const moo_oocs_t* name)
{
moo_oop_association_t ass = moo_lookupdic_noseterr(moo, dic, name);
if (!ass) moo_seterrbfmt(moo, MOO_ENOENT, "unable to find %.*js in a dictionary", name->len, name->ptr);
return ass;
}
moo_oop_association_t moo_putatsysdic (moo_t* moo, moo_oop_t key, moo_oop_t value)
{
MOO_ASSERT (moo, MOO_CLASSOF(moo,key) == moo->_symbol);

3
moo/lib/exec.c
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@ -1635,7 +1635,7 @@ static MOO_INLINE moo_oop_method_t find_method_in_class (moo_t* moo, moo_oop_cla
MOO_ASSERT (moo, (moo_oop_t)mthdic != moo->_nil);
MOO_ASSERT (moo, MOO_CLASSOF(moo, mthdic) == moo->_method_dictionary);
ass = (moo_oop_association_t)moo_lookupdic(moo, mthdic, name);
ass = (moo_oop_association_t)moo_lookupdic_noseterr(moo, mthdic, name);
if (ass)
{
/* found the method */
@ -1711,7 +1711,6 @@ moo_oop_method_t moo_findmethod (moo_t* moo, moo_oop_t receiver, const moo_oocs_
* otherwise c points to a class object */
}
/* [IMPORT] the method lookup logic should be the same as ciim_on_each_method() in comp.c */
mth = find_method_in_class_chain(moo, c, mth_type, message);
if (mth) return mth;

2
moo/lib/gc.c
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@ -1070,7 +1070,7 @@ moo_oop_t moo_shallowcopy (moo_t* moo, moo_oop_t oop)
total_bytes = MOO_SIZEOF(moo_obj_t) + get_payload_bytes(moo, oop);
moo_pushtmp (moo, &oop);
z = (moo_oop_t)moo_allocbytes (moo, total_bytes);
z = (moo_oop_t)moo_allocbytes(moo, total_bytes);
moo_poptmp(moo);
MOO_MEMCPY (z, oop, total_bytes);

6
moo/lib/moo-prv.h
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@ -1173,6 +1173,12 @@ moo_oop_association_t moo_getatdic (
moo_oop_t key
);
moo_oop_association_t moo_lookupdic_noseterr (
moo_t* moo,
moo_oop_dic_t dic,
const moo_oocs_t* name
);
moo_oop_association_t moo_lookupdic (
moo_t* moo,
moo_oop_dic_t dic,