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| author | Tim Foley <tfoleyNV@users.noreply.github.com> | 2020-09-24 13:09:40 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-09-24 13:09:40 -0700 |
| commit | 150218bec9e992d32833dd9a0c1396a4d7c12b7e (patch) | |
| tree | c544eba21b13217619b9c48546c6ffbbbe0ec34b /examples/cpu-hello-world/main.cpp | |
| parent | fd2ac531c0fcb05bba421184b7443dc034281322 (diff) | |
Refactor preprocessor API to avoid coupling (#1559)
Based on review feedback from #1556, this change updates the Slang preprocessor so that it is no longer coupled to policy details from higher levels of the software stack. In particular, the preprocessor used to:
* Deal with updating the list of file paths that a `Module` depends on.
* (As of #1556) detect NVAPI-related macro definitions and use them to construct an AST-level `Modifier` attached to the `ModuleDecl`.
This change introduces a callback interface where the `Preprocessor` calls out to a `PreprocessorHandler` at certain points during execution, allowing the handler to introduce custom logic that suits a particular high-level use case.
This change also removes the dependence of the preprocessor on the `Linkage`, because in practice only a small number of its sub-objects were needed. As a convenience, a wrapper function that takes a `Linkage` was left in place so that the existing call sites didn't have to change very much.
Diffstat (limited to 'examples/cpu-hello-world/main.cpp')
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