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Merge pull request #5344 from higuoxing/midrule

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verilog_parser: replace manual AST node allocation with typed midrule actions
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Emil J 2025-09-15 16:20:47 +02:00 • committed by GitHub
commit 7d82d80a95
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1 changed files with 12 additions and 8 deletions
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20
frontends/verilog/verilog_parser.y
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@ -3289,15 +3289,19 @@ basic_expr:
$$ = AstNode::mkconst_str(@1, *$1);
SET_AST_NODE_LOC($$.get(), @1, @1);
} |
hierarchical_id attr {
// super sketchy! Orphaned pointer in non-owning extra->ast_stack
AstNode *node = new AstNode(@1, AST_FCALL);
node->str = *$1;
extra->ast_stack.push_back(node);
SET_AST_NODE_LOC(node, @1, @1);
append_attr(node, std::move($2));
hierarchical_id attr <ast_t>{
// Here we use "Typed Midrule Actions".
// https://www.gnu.org/software/bison/manual/html_node/Typed-Midrule-Actions.html
auto fcall = std::make_unique<AstNode>(@1, AST_FCALL);
AstNode *fcall_node = fcall.get();
fcall_node->str = *$1;
extra->ast_stack.push_back(fcall_node);
SET_AST_NODE_LOC(fcall_node, @1, @1);
append_attr(fcall_node, std::move($2));
$$ = std::move(fcall);
} TOK_LPAREN arg_list optional_comma TOK_RPAREN {
$$.reset(extra->ast_stack.back());
log_assert($3 != nullptr);
$$ = std::move($3);
extra->ast_stack.pop_back();
} |
TOK_TO_SIGNED attr TOK_LPAREN expr TOK_RPAREN {