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Move logic out of symbol_find_demangled_name

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This patch moves most of the demangling logic out of
symbol_find_demangled_name into the various language_defn objects.

The simplest way to do this seemed to be to add a new method to
language_defn.  This is shame given the existing la_demangle, but
given Ada's unusual needs, and the differing demangling options
between languages, la_demangle didn't seem to fit.

In order to make this work, I made enum language order-sensitive.
This helps preserve the current ordering of demangling operations.

2016-06-23  Tom Tromey  <tom@tromey.com>

	* symtab.c (symbol_find_demangled_name): Loop over languages and
	use language_sniff_from_mangled_name.
	* rust-lang.c (rust_sniff_from_mangled_name): New function.
	(rust_language_defn): Update.
	* p-lang.c (pascal_language_defn): Update.
	* opencl-lang.c (opencl_language_defn): Update.
	* objc-lang.c (objc_sniff_from_mangled_name): New function.
	(objc_language_defn): Update.
	* m2-lang.c (m2_language_defn): Update.
	* language.h (struct language_defn) <la_sniff_from_mangled_name>: New
	field.
	(language_sniff_from_mangled_name): Declare.
	* language.c (language_sniff_from_mangled_name): New function.
	(unknown_language_defn, auto_language_defn, local_language_defn):
	Update.
	* jv-lang.c (java_sniff_from_mangled_name): New function.
	(java_language_defn): Use it.
	* go-lang.c (go_sniff_from_mangled_name): New function.
	(go_language_defn): Use it.
	* f-lang.c (f_language_defn): Update.
	* defs.h (enum language): Reorder.
	* d-lang.c (d_sniff_from_mangled_name): New function.
	(d_language_defn): Use it.
	* cp-support.h (gdb_sniff_from_mangled_name): Declare.
	* cp-support.c (gdb_sniff_from_mangled_name): New function.
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Update.
	* ada-lang.c (ada_sniff_from_mangled_name): New function.
	(ada_language_defn): Use it.
This commit is contained in:
Tom Tromey
2016-05-26 15:04:07 -06:00
parent 56618e20bc
commit 8b302db80c
18 changed files with 225 additions and 99 deletions
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10
gdb/go-lang.c
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@ -385,6 +385,15 @@ go_demangle (const char *mangled_name, int options)
return result;
}
/* la_sniff_from_mangled_name for Go. */
static int
go_sniff_from_mangled_name (const char *mangled, char **demangled)
{
*demangled = go_demangle (mangled, 0);
return *demangled != NULL;
}
/* Given a Go symbol, return its package or NULL if unknown.
Space for the result is malloc'd, caller must free. */
@ -584,6 +593,7 @@ static const struct language_defn go_language_defn =
basic_lookup_symbol_nonlocal,
basic_lookup_transparent_type,
go_demangle, /* Language specific symbol demangler. */
go_sniff_from_mangled_name,
NULL, /* Language specific
class_name_from_physname. */
go_op_print_tab, /* Expression operators for printing. */