10.9. DECS, AST block to loop

The AST_BLOCK_TO_LOOP module provides an AST transformation macro that converts block-based iteration patterns into explicit loop constructs. Used internally by other macro libraries for optimization.

All functions and symbols are in “ast_block_to_loop” module, use require to get access to it.

require daslib/ast_block_to_loop

10.9.1. Block to loop conversion

convert_block_to_loop (var blk: smart_ptr<Expression>; failOnReturn: bool; replaceReturnWithContinue: bool; requireContinueCond: bool)

ast_block_to_loop::convert_block_to_loop(blk: smart_ptr<Expression>; failOnReturn: bool; replaceReturnWithContinue: bool; requireContinueCond: bool)

Converts closure block to loop. If failOnReturn is true, then returns are not allowed inside the block. If replaceReturnWithContinue is true, then return cond; are replaced with if cond; continue;. If requireContinueCond is false, then return; is replaced with continue;, otherwise it is an error.

Arguments

blk : smart_ptr< Expression>
failOnReturn : bool
replaceReturnWithContinue : bool
requireContinueCond : bool