diff options
Diffstat (limited to 'gcc/rust/expand/rust-macro-substitute-ctx.h')
| -rw-r--r-- | gcc/rust/expand/rust-macro-substitute-ctx.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/gcc/rust/expand/rust-macro-substitute-ctx.h b/gcc/rust/expand/rust-macro-substitute-ctx.h index e3100a3..c5c4956 100644 --- a/gcc/rust/expand/rust-macro-substitute-ctx.h +++ b/gcc/rust/expand/rust-macro-substitute-ctx.h @@ -18,6 +18,7 @@ #include "rust-ast.h" #include "rust-macro-expand.h" +#include "rust-macro.h" namespace Rust { class SubstituteCtx @@ -25,6 +26,7 @@ class SubstituteCtx std::vector<std::unique_ptr<AST::Token>> &input; std::vector<std::unique_ptr<AST::Token>> ¯o; std::map<std::string, MatchedFragmentContainer *> &fragments; + AST::MacroRulesDefinition &definition; /** * Find the repetition amount to use when expanding a repetition, and @@ -40,11 +42,28 @@ class SubstituteCtx public: SubstituteCtx (std::vector<std::unique_ptr<AST::Token>> &input, std::vector<std::unique_ptr<AST::Token>> ¯o, - std::map<std::string, MatchedFragmentContainer *> &fragments) - : input (input), macro (macro), fragments (fragments) + std::map<std::string, MatchedFragmentContainer *> &fragments, + AST::MacroRulesDefinition &definition) + : input (input), macro (macro), fragments (fragments), + definition (definition) {} /** + * Special-case the $crate metavar to expand to the name of the crate in which + * the macro was defined. + * + * https://doc.rust-lang.org/reference/macros-by-example.html#r-macro.decl.hygiene.crate + * + * + * @param expanded Reference to a vector upon which expanded tokens will be + * pushed + * + * @return True if the substitution succeeded + */ + bool + substitute_dollar_crate (std::vector<std::unique_ptr<AST::Token>> &expanded); + + /** * Substitute a metavariable by its given fragment in a transcribing context, * i.e. replacing $var with the associated fragment. * @@ -52,7 +71,7 @@ public: * @param expanded Reference to a vector upon which expanded tokens will be * pushed * - * @return True iff the substitution succeeded + * @return True if the substitution succeeded */ bool substitute_metavar (std::unique_ptr<AST::Token> &metavar, std::vector<std::unique_ptr<AST::Token>> &expanded); |