46e2c07fa2
Add the Data Inspection Language (DIL) implementation pieces for handling plain local and global variable names. See https://discourse.llvm.org/t/rfc-data-inspection-language/69893 for information about DIL. This change includes the basic AST, Lexer, Parser and Evaluator pieces, as well as some tests.
43 lines
907 B
EBNF
43 lines
907 B
EBNF
(* Data Inspection Language (DIL) definition - LLDB Debug Expressions *)
|
|
|
|
(* This is currently a subset of the final DIL Language, matching the current
|
|
DIL implementation. *)
|
|
|
|
expression = primary_expression ;
|
|
|
|
primary_expression = id_expression
|
|
| "(" expression ")";
|
|
|
|
id_expression = unqualified_id
|
|
| qualified_id
|
|
| register ;
|
|
|
|
unqualified_id = identifier ;
|
|
|
|
qualified_id = ["::"] [nested_name_specifier] unqualified_id
|
|
| ["::"] identifier ;
|
|
|
|
identifier = ? C99 Identifier ? ;
|
|
|
|
register = "$" ? Register name ? ;
|
|
|
|
nested_name_specifier = type_name "::"
|
|
| namespace_name '::'
|
|
| nested_name_specifier identifier "::" ;
|
|
|
|
type_name = class_name
|
|
| enum_name
|
|
| typedef_name;
|
|
|
|
class_name = identifier ;
|
|
|
|
enum_name = identifier ;
|
|
|
|
typedef_name = identifier ;
|
|
|
|
namespace_name = identifier ;
|
|
|
|
|
|
|
|
|