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# dmd.inline

Performs inlining, which is an optimization pass enabled with the -`inline` flag.
The AST is traversed, and every function call is considered for inlining using inlinecost.d. The function call is then inlined if this cost is below a threshold.
Authors:
Walter Bright
License:
Boost License 1.0

Source inline.d

Documentation https://dlang.org/phobos/dmd_inline.html

Coverage https://codecov.io/gh/dlang/dmd/src/master/src/dmd/inline.d

void `inlineScanModule`(Module `m`);
  Scan function implementations in Module m looking for functions that can be inlined, and inline them in situ.
  Parameters:

  Module `m` | module to scan

Expression `inlineCopy`(Expression `e`, Scope* `sc`);
  Perform the "inline copying" of a default argument for a function parameter.

  Todo The hack for bugzilla 4820 case is still questionable. Perhaps would have to handle a delegate expression with 'null' context properly in front-end.

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