diff options
Diffstat (limited to 'libyul/optimiser/Metrics.h')
| -rw-r--r-- | libyul/optimiser/Metrics.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libyul/optimiser/Metrics.h b/libyul/optimiser/Metrics.h index d8a1b279..03e1b62a 100644 --- a/libyul/optimiser/Metrics.h +++ b/libyul/optimiser/Metrics.h @@ -30,6 +30,13 @@ namespace yul * More specifically, the number of AST nodes. * Ignores function definitions while traversing the AST. * If you want to know the size of a function, you have to invoke this on its body. + * + * As an exception, the following AST elements have a cost of zero: + * - expression statement (only the expression inside has a cost) + * - block (only the statements inside have a cost) + * - variable references + * - variable declarations (only the right hand side has a cost) + * - assignments (only the value has a cost) */ class CodeSize: public ASTWalker { @@ -39,6 +46,8 @@ public: static size_t codeSize(Block const& _block); private: + CodeSize() {} + void visit(Statement const& _statement) override; void visit(Expression const& _expression) override; |