gdb: Convert language_data::la_exp_desc to a method

Convert language_data::la_exp_desc member variable to a virtual
method language_defn::expression_ops.  The change of names brings this
method more into line with the existing varobj_ops method, that also
returns a table of function pointers.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Remove la_exp_desc initializer.
	(ada_language::expression_ops): New member function.
	* c-lang.c (c_language_data): Remove la_exp_desc initializer.
	(c_language::expression_ops): New member function.
	(cplus_language_data): Remove la_exp_desc initializer.
	(cplus_language::expression_ops): New member function.
	(asm_language_data): Remove la_exp_desc initializer.
	(asm_language::expression_ops): New member function.
	(minimal_language_data): Remove la_exp_desc initializer.
	(minimal_language::expression_ops): New member function.
	* d-lang.c (d_language_data): Remove la_exp_desc initializer.
	(d_language::expression_ops): New member function.
	* eval.c (evaluate_subexp): Update call to expression_ops.
	* expprint.c (print_subexp): Likewise.
	(op_name): Likewise.
	(dump_subexp_body): Likewise.
	* f-lang.c (f_language_data): Remove la_exp_desc initializer.
	(f_language::expression_ops): New member function.
	* go-lang.c (go_language_data): Remove la_exp_desc initializer.
	(go_language::expression_ops): New member function.
	* language.c (language_defn::expression_ops): New function.
	(unknown_language_data): Remove la_exp_desc initializer.
	(auto_language_data): Likewise.
	* language.h (language_data): Remove la_exp_desc field.
	(language_defn::expression_ops): Declare new member function.
	* m2-lang.c (m2_language_data): Remove la_exp_desc initializer.
	(m2_language::expression_ops): New member function.
	* objc-lang.c (objc_language_data): Remove la_exp_desc
	initializer.
	* opencl-lang.c (opencl_language_data): Remove la_exp_desc
	initializer.
	(opencl_language::expression_ops): New member function.
	* p-lang.c (pascal_language_data): Remove la_exp_desc initializer.
	* parse.c (operator_length): Update call to expression_ops.
	(exp_iterate): Likewise.
	* rust-lang.c (rust_language_data): Remove la_exp_desc
	initializer.
	(ruse_language::expression_ops): New member function.

1 files changed, 20 insertions, 4 deletions

diff --git a/gdb/c-lang.c b/gdb/c-lang.c
index 9b21da1..f29f340 100644
--- a/gdb/c-lang.c
+++ b/gdb/c-lang.c
@@ -875,7 +875,6 @@ const struct exp_descriptor exp_descriptor_c =
 
 extern const struct language_data c_language_data =
 {
-  &exp_descriptor_c,
   c_op_print_tab,		/* expression operators for printing */
 };
 
@@ -947,6 +946,11 @@ public:
 
   enum macro_expansion macro_expansion () const override
   { return macro_expansion_c; }
+
+  /* See language.h.  */
+
+  const struct exp_descriptor *expression_ops () const override
+  { return &exp_descriptor_c; }
 };
 
 /* Single instance of the C language class.  */
@@ -985,7 +989,6 @@ enum cplus_primitive_types {
 
 extern const struct language_data cplus_language_data =
 {
-  &exp_descriptor_c,
   c_op_print_tab,		/* expression operators for printing */
 };
 
@@ -1179,6 +1182,11 @@ public:
   const struct lang_varobj_ops *varobj_ops () const override
   { return &cplus_varobj_ops; }
 
+  /* See language.h.  */
+
+  const struct exp_descriptor *expression_ops () const override
+  { return &exp_descriptor_c; }
+
 protected:
 
   /* See language.h.  */
@@ -1198,7 +1206,6 @@ static cplus_language cplus_language_defn;
 
 extern const struct language_data asm_language_data =
 {
-  &exp_descriptor_c,
   c_op_print_tab,		/* expression operators for printing */
 };
 
@@ -1257,6 +1264,11 @@ public:
 
   enum macro_expansion macro_expansion () const override
   { return macro_expansion_c; }
+
+  /* See language.h.  */
+
+  const struct exp_descriptor *expression_ops () const override
+  { return &exp_descriptor_c; }
 };
 
 /* The single instance of the ASM language class.  */
@@ -1269,7 +1281,6 @@ static asm_language asm_language_defn;
 
 extern const struct language_data minimal_language_data =
 {
-  &exp_descriptor_c,
   c_op_print_tab,		/* expression operators for printing */
 };
 
@@ -1317,6 +1328,11 @@ public:
 
   enum macro_expansion macro_expansion () const override
   { return macro_expansion_c; }
+
+  /* See language.h.  */
+
+  const struct exp_descriptor *expression_ops () const override
+  { return &exp_descriptor_c; }
 };
 
 /* The single instance of the minimal language class.  */