capnpc-rust: make CLI plugin aware of default_parent_module
#568
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This enhances the
capnpc-rust
CLI plugin binary in order to make the default "parent module" value dynamic and controlled through an environment flag at runtime.It matches the behavior which is already available for
build.rs
scripts throughCompilerCommand::default_parent_module()
.This only affects the default value, which can be still overridden by
parentModule
schema annotations as usual.When using the Rust plugin through the
capnp
compiler, it is now possible to set the default parent module like this: