transpile: tests: cross-transpile#1444

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kkysen wants to merge 21 commits intomasterfrom

kkysen/cross-os-transpilation

Commits on Nov 3, 2025

transpile: store `const GENERATED_RUST_TOOLCHAIN_TOML: &str` from `generated-rust-toolchain.toml`
kkysen
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transpile: parse `const GENERATED_RUST_TOOLCHAIN: &str` from `GENERATED_RUST_TOOLCHAIN_TOML` and use it to deduplicate
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transpile: tests: use `-fsyntax-only` instead of `-c -o /dev/null`
kkysen
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ci: install `zig` for `zig cc` for cross compilation
kkysen
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transpile: tests: use `zig cc -###` to look up cross-compilation args
kkysen
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transpile: tests: find `TargetArgs` for all `Target`s
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transpile: tests: make `fn transpile` a method on `struct TargetArgs`
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transpile: tests: transpile snapshots on all targets
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transpile: tests: first check if all `rustup target`s are installed
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transpile: tests: print which file we're transpiling to which target
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transpile: tests: switch from zig target to rust target for clang target
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transpile: tests: make `AllTargetsArgs` take an explicit list of targets, not necessarily all
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transpile: tests: rename `AllTargetArgs` to `Targets` since it's no longer necessarily all
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transpile: tests: add `x86` and `arm` `linux` targets, but don't test them yet (32-bit has differences)
kkysen
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transpile: tests: add `riscv64` target, but don't test it yet (riscv builtin types are unhandled)
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transpile: tests: use `""` instead of `None` for `platform`
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transpile: tests: change `fn Targets::transpile`'s `platform` to `Into<Cow<str>>`
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transpile: tests: enable `x86` and `arm` snapshots
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transpile: tests: combine all the `insta::glob!`s so that we can remove all of the `dummy.c`s
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ci: remove extra newline
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ci: make sure `python 3.14` is used to ensure a stable version
kkysen
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