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2021-03-08Introduce repeat_operationTom Tromey1-0/+20
This adds class repeat_operation, which implements BINOP_REPEAT. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class repeat_operation): New. * eval.c (eval_op_repeat): No longer static. Remove "op" parameter. (evaluate_subexp_standard): Update. * ax-gdb.c (repeat_operation::do_generate_ax): New method.
2021-03-08Implement binary comparison operationsTom Tromey1-0/+60
This implements the binary comparison operations via a template class. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class comparison_operation): New. (equal_operation, notequal_operation, less_operation) (gtr_operation, geq_operation, leq_operation): New typedefs. * eval.c (eval_op_equal, eval_op_notequal, eval_op_less) (eval_op_gtr, eval_op_geq, eval_op_leq): No longer static.
2021-03-08Introduce subscript_operationTom Tromey1-0/+16
This adds class subscript_operation, which implements BINOP_SUBSCRIPT. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class subscript_operation): New. * eval.c (eval_op_subscript): No longer static.
2021-03-08Introduce binop_operationTom Tromey1-0/+71
This adds two new template classes, binop_operation and usual_ax_binop_operation, and then uses these to implement a number of binary operations that follow similar patterns. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class binop_operation, class usual_ax_binop_operation): New. (exp_operation, intdiv_operation, mod_operation, mul_operation) (div_operation, rem_operation, lsh_operation, rsh_operation) (bitwise_and_operation, bitwise_ior_operation) (bitwise_xor_operation): New typedefs. * eval.c (eval_op_binary): No longer static.
2021-03-08Introduce sub_operationTom Tromey1-0/+40
This adds class sub_operation, which implements BINOP_SUB. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class sub_operation): New. * eval.c (eval_op_sub): No longer static. Remove "op" parameter. (evaluate_subexp_standard): Update.
2021-03-08Introduce add_operationTom Tromey1-0/+40
This adds class add_operation, which implements BINOP_ADD. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class add_operation): New. * eval.c (eval_op_add): No longer static. Remove "op" parameter. (evaluate_subexp_standard): Update.
2021-03-08Introduce concat_operationTom Tromey1-0/+26
This adds class concat_operation, which implements BINOP_CONCAT. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class concat_operation): New. * eval.c (eval_op_concat): No longer static. Remove "op" parameter. (evaluate_subexp_standard): Update.
2021-03-08Introduce structop_member_operation and structop_mptr_operationTom Tromey1-0/+48
This adds class structop_member_operation and structop_mptr_operation, which implement STRUCTOP_MEMBER and STRUCTOP_MPTR. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class structop_member_operation) (class structop_mptr_operation): New. * eval.c (eval_op_member): No longer static.
2021-03-08Introduce structop_ptr_operationTom Tromey1-0/+39
This adds class structop_ptr_operation, which implements STRUCTOP_PTR. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class structop_ptr_operation): New. * eval.c (eval_op_structop_ptr): No longer static. Remove "op" parameter.
2021-03-08Introduce structop_operationTom Tromey1-0/+62
This adds class structop_base_operation and structop_operation, which implement STRUCTOP_STRUCT. The base class exists to unify the completion code between STRUCTOP_STRUCT and STRUCTOP_PTR. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class structop_base_operation) (class structop_operation): New. * eval.c (eval_op_structop_struct): No longer static.
2021-03-08Introduce complex_operationTom Tromey1-0/+21
This adds class complex_operation, which implements OP_COMPLEX. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class complex_operation): New.
2021-03-08Introduce ternop_cond_operationTom Tromey1-0/+31
This adds class ternop_cond_operation, which implements TERNOP_COND. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class ternop_cond_operation): New. * ax-gdb.c (ternop_cond_operation::do_generate_ax): New method.
2021-03-08Introduce ternop_slice_operationTom Tromey1-0/+29
This adds class ternop_slice_operation, which implements TERNOP_SLICE. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class ternop_slice_operation): New. * eval.c (eval_op_ternop): No longer static.
2021-03-08Introduce string_operationTom Tromey1-0/+24
This adds string_operation, which implements OP_STRING for most languages (C has its own variant). gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class string_operation): New. * eval.c (eval_op_string): No longer static.
2021-03-08Introduce internalvar_operationTom Tromey1-0/+32
This adds class internalvar_operation, which implements OP_INTERNALVAR. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class internalvar_operation): New. * ax-gdb.c (internalvar_operation::do_generate_ax): New method.
2021-03-08Introduce bool_operationTom Tromey1-0/+22
This adds class bool_operation, which implements OP_BOOL. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class bool_operation): New.
2021-03-08Introduce register_operationTom Tromey1-0/+30
This adds class register_operation, which implements OP_REGISTER. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class register_operation): New. * eval.c (eval_op_register): No longer static. * ax-gdb.c (register_operation::do_generate_ax): New method.
2021-03-08Introduce last_operationTom Tromey1-0/+18
This adds class last_operation, which implements OP_LAST. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class last_operation): New.
2021-03-08Introduce func_static_var_operationTom Tromey1-0/+24
This adds class func_static_var_operation, which implements OP_FUNC_STATIC_VAR. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class func_static_var_operation): New. * eval.c (eval_op_func_static_var): No longer static.
2021-03-08Introduce var_entry_value_operationTom Tromey1-0/+22
This adds class var_entry_value_operation, which implements OP_VAR_ENTRY_VALUE. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class var_entry_value_operation): New. * eval.c (eval_op_var_entry_value): No longer static.
2021-03-08Introduce var_msym_value_operationTom Tromey1-0/+52
This adds class var_msym_value_operation, which implements OP_VAR_MSYM_VALUE. A new method is added to class operation in order to support a special case in minsym evaluation. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expression.h (class operation) <set_outermost>: New method. * expop.h (class var_msym_value_operation): New. * eval.c (eval_op_var_msym_value): No longer static. (var_msym_value_operation::evaluate_for_address) (var_msym_value_operation::evaluate_for_sizeof) (var_msym_value_operation::evaluate_for_cast): New methods. * ax-gdb.c (var_msym_value_operation::do_generate_ax): New method.
2021-03-08Introduce long_const_operationTom Tromey1-0/+30
This adds class long_const_operation, which holds a scalar constant. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class long_const_operation): New. * ax-gdb.c (long_const_operation::do_generate_ax): New method.
2021-03-08Introduce scope_operationTom Tromey1-0/+36
This adds class scope_operation, an implementation of OP_SCOPE. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class scope_operation): New. * eval.c (eval_op_scope): No longer static. (scope_operation::evaluate_for_address): New method. * ax-gdb.c (scope_operation::do_generate_ax): New method.
2021-03-08Introduce float_const_operationTom Tromey1-0/+42
This adds class float_const_operation, an operation holding a floating-point constant. Unlike most other new operations, this one requires a custom 'dump' method. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expprint.c (float_const_operation::dump): New method. * expop.h (float_data): New typedef. (class float_const_operation): New.
2021-03-08Add two agent expression helper functionsTom Tromey1-0/+10
This adds a couple of agent expression helper functions that will be useful when implementing various operations. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (gen_expr_binop, gen_expr_structop): Declare. * ax-gdb.c (gen_expr_binop): New function. (gen_expr_structop): Likewise.
2021-03-08Implement dumpingTom Tromey1-1/+54
This patch implements the dumping methods for tuple_holding_operation. A number of overloads are used. Note that no default case is given. This approach makes it simple to detect when a new overload is needed -- compilation will fail. (There is an example of this in a later patch in the series.) gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expprint.c (expr::dump_for_expression): New functions. * expop.h (dump_for_expression): New overloads. (tuple_holding_operation::dump, tuple_holding_operation::do_dump): Update.
2021-03-08Introduce class operationTom Tromey1-0/+315
This patch introduces class operation, the new base class for all expression operations. In the new approach, an operation is simply a class that presents a certain interface. Operations own their operands, and management is done via unique_ptr. The operation interface is largely ad hoc, based on the evolution of expression handling in GDB. Parts (for example, evaluate_with_coercion) are probably redundant; however I took this approach to try to avoid mixing different kinds of refactorings. In some specific situations, rather than add a generic method across the entire operation class hierarchy, I chose instead to use dynamic_cast and specialized methods on certain concrete subclasses. This will appear in some subsequent patches. One goal of this work is to avoid the kinds of easy-to-make errors that affected the old implementation. To this end, some helper subclasses are also added here. These helpers automate the implementation of the 'dump', 'uses_objfile', and 'constant_p' methods. Nearly every concrete operation that is subsequently added will use these facilities. (Note that the 'dump' implementation is only outlined here, the body appears in the next patch.) gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expression.h (expr::operation): New class. (expr::make_operation): New function. (expr::operation_up): New typedef. * expop.h: New file. * eval.c (operation::evaluate_for_cast) (operation::evaluate_for_address, operation::evaluate_for_sizeof): New methods. * ax-gdb.c (operation::generate_ax): New method.
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