gdb/fortran: Add new function to evaluate Fortran expressions
This is an initial restructure, it adds a new function in which Fortran specific expressions can be evaluated. No Fortran specific expressions are added with this commit though, so for now, the new function just forwards all expressions to the default expression handler, as such, there should be no user visible changes after this commit. However, the new function will be useful in later commits. gdb/ChangeLog: * f-lang.c (evaluate_subexp_f): New function. (exp_descriptor_f): New global. (f_language_defn): Use exp_descriptor_f instead of exp_descriptor_standard.
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@ -1,3 +1,10 @@
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2019-03-06 Andrew Burgess <andrew.burgess@embecosm.com>
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* f-lang.c (evaluate_subexp_f): New function.
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(exp_descriptor_f): New global.
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(f_language_defn): Use exp_descriptor_f instead of
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exp_descriptor_standard.
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2019-03-06 Andrew Burgess <andrew.burgess@embecosm.com>
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* f-exp.y (struct token): Add comments.
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22
gdb/f-lang.c
22
gdb/f-lang.c
@ -239,6 +239,15 @@ f_collect_symbol_completion_matches (completion_tracker &tracker,
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text, word, ":", code);
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}
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/* Special expression evaluation cases for Fortran. */
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struct value *
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evaluate_subexp_f (struct type *expect_type, struct expression *exp,
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int *pos, enum noside noside)
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{
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/* Currently no special handling is required. */
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return evaluate_subexp_standard (expect_type, exp, pos, noside);
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}
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static const char *f_extensions[] =
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{
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".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP",
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@ -246,6 +255,17 @@ static const char *f_extensions[] =
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NULL
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};
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/* Expression processing for Fortran. */
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static const struct exp_descriptor exp_descriptor_f =
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{
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print_subexp_standard,
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operator_length_standard,
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operator_check_standard,
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op_name_standard,
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dump_subexp_body_standard,
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evaluate_subexp_f
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};
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extern const struct language_defn f_language_defn =
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{
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"fortran",
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@ -256,7 +276,7 @@ extern const struct language_defn f_language_defn =
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array_column_major,
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macro_expansion_no,
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f_extensions,
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&exp_descriptor_standard,
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&exp_descriptor_f,
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f_parse, /* parser */
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null_post_parser,
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f_printchar, /* Print character constant */
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