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Guile: add value-const-value

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The Guile API doesn't currently have an equivalent to the Python API's
gdb.Value.const_value(). This commit adds a procedure with equivalent
semantics to the Guile API.

gdb/ChangeLog:

	* NEWS (Guile API): Note the addition of the new procedure.
	* guile/scm-value.c (gdbscm_value_const_value): Add
	implementation of value-const-value procedure.
	(value_functions): Add value-const-value procedure.

gdb/doc/ChangeLog:

	* guile.texi (Values From Inferior In Guile): Add documentation
	for value-const-value.

gdb/testsuite/ChangeLog:

	* gdb.guile/scm-value.exp (test_value_in_inferior): Add test for
	value-const-value.
This commit is contained in:
George Barrett
2021-04-29 03:32:56 +10:00
committed by Andrew Burgess
parent 9d4fc61d41
commit ee35ce8200
7 changed files with 51 additions and 2 deletions
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23
gdb/guile/scm-value.c
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@@ -520,6 +520,24 @@ gdbscm_value_rvalue_reference_value (SCM self)
return gdbscm_reference_value (self, TYPE_CODE_RVALUE_REF);
}
/* (value-const-value <gdb:value>) -> <gdb:value> */
static SCM
gdbscm_value_const_value (SCM self)
{
value_smob *v_smob
= vlscm_get_value_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct value *value = v_smob->value;
return gdbscm_wrap ([=]
{
scoped_value_mark free_values;
struct value *res_val = make_cv_value (1, 0, value);
return vlscm_scm_from_value (res_val);
});
}
/* (value-type <gdb:value>) -> <gdb:type> */
static SCM
@@ -1394,6 +1412,11 @@ Return a <gdb:value> object which is a reference to the given value." },
"\
Return a <gdb:value> object which is an rvalue reference to the given value." },
{ "value-const-value", 1, 0, 0,
as_a_scm_t_subr (gdbscm_value_const_value),
"\
Return a <gdb:value> object which is a 'const' version of the given value." },
{ "value-field", 2, 0, 0, as_a_scm_t_subr (gdbscm_value_field),
"\
Return the specified field of the value.\n\