11 Non-Module Compilation And Expansion

On this page:

expand-syntax-top-level-with-compile-time-evals

expand-top-level-with-compile-time-evals

expand-syntax-top-level-with-compile-time-evals/flatten

eval-compile-time-part-of-top-level

eval-compile-time-part-of-top-level/compile

top ← prev up next →

11Non-Module Compilation And Expansion🔗 i

(require syntax/toplevel ) package: base

procedure
( expand-syntax-top-level-with-compile-time-evals stx)→syntax?
stx:syntax?

Expands stx as a top-level expression, and evaluates its compile-time portion for the benefit of later expansions.

The expander recognizes top-level begin expressions, and interleaves the evaluation and expansion of the begin body, so that compile-time expressions within the begin body affect later expansions within the body. (In other words, it ensures that expanding a begin is the same as expanding separate top-level expressions.)

The stx should have a context already, possibly introduced with namespace-syntax-introduce .

procedure
( expand-top-level-with-compile-time-evals stx)→syntax?
stx:syntax?

Like expand-syntax-top-level-with-compile-time-evals , but stx is first given context by applying namespace-syntax-introduce to it.

procedure
( expand-syntax-top-level-with-compile-time-evals/flatten stx)
→(listof syntax? )
stx:syntax?

Like expand-syntax-top-level-with-compile-time-evals , except that it returns a list of syntax objects, none of which have a begin . These syntax objects are the flattened out contents of any begin s in the expansion of stx.

procedure
( eval-compile-time-part-of-top-level stx)→void?
stx:syntax?

Evaluates expansion-time code in the fully expanded top-level expression represented by stx (or a part of it, in the case of begin expressions). The expansion-time code might affect the compilation of later top-level expressions. For example, if stx is a require expression, then namespace-require/expansion-time is used on each require specification in the form. Normally, this function is used only by expand-top-level-with-compile-time-evals .

procedure
( eval-compile-time-part-of-top-level/compile stx)
→(listof compiled-expression? )
stx:syntax?

Like eval-compile-time-part-of-top-level , but the result is compiled code.

top ← prev up next →