e463385404
`#jni_call(void)(target, "name", "sig")` (3 args before the first
string literal) should work inside an enclosing `#jni_env(env) { ... }`
scope, picking up the env from the block's value directly. Today's
lowering expects 4+ args and errors with "#jni_call requires env,
target, method name, and signature".
The make-green follow-up adds a lowering-side env stack maintained
across the `#jni_env` body walk, and a disambiguation in
`lowerJniCall` that detects "env omitted" via the position of the
first string-literal arg (method name at index 1 → omitted; at index
2 → explicit env).
31 lines
962 B
Plaintext
31 lines
962 B
Plaintext
// Phase 2 step 2.16b (PLAN-FFI.md): xfail then green for the
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// lexical-direct env resolution inside a `#jni_env` scope.
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//
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// `#jni_call(T)(target, "name", "sig", args...)` — three args before
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// the first string literal — has the env omitted. The lowering walks
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// the in-progress AST visit stack to find the enclosing `#jni_env(env)`
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// block and uses that env value directly as the IR-level env arg.
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// No thread-local read, no per-call lookup; env stays register-
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// resident across loop bodies (the hot-path optimisation).
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//
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// Today's lower expects 4+ args and errors when called with 3.
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#import "modules/std.sx";
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g_should_call : bool = false;
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unused_jni :: (env: *void, target: *void) {
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#jni_env(env) {
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// Omitted env — env comes from the enclosing #jni_env scope.
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#jni_call(void)(target, "noop", "()V");
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}
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}
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main :: () -> s32 {
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if g_should_call {
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unused_jni(null, null);
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}
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print("ok\n");
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0;
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}
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