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[0.4.0] Introduce WrenLoadModuleResult, fix unfreed strings from host. (#778)

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ruby
2020-12-03 09:27:54 -08:00
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commit 6bd2f810e2
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doc/site/modularity.markdown
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@ -81,17 +81,17 @@ WrenVM* vm = wrenNewVM(&config);
That function has this signature:
<pre class="snippet" data-lang="c">
char* WrenLoadModuleFn(WrenVM* vm, const char* name);
WrenLoadModuleResult WrenLoadModuleFn(WrenVM* vm, const char* name);
</pre>
Whenever a module is imported, the VM calls this and passes it the name of the
module. The embedder is expected to return the source code contents of the
module. When you embed Wren in your app, you can handle this however you want:
reach out to the file system, look inside resources bundled into your app,
whatever.
module in a `WrenLoadModuleResult`. When you embed Wren in your app, you can handle
this however you want: reach out to the file system, look inside resources bundled
into your app, whatever.
You can return `NULL` from this function to indicate that a module couldn't be
found. When you do this, Wren will report it as a runtime error.
You can return the source field as `NULL` from this function to indicate that a module
couldn't be found. When you do this, Wren will report it as a runtime error.
### The command-line loader