feat(tvix/eval): introduce generators module r/5899

This module contains the request/response types for generators
requesting actions from the VM.

For most of these, an async helper function is added that will be used
inside of generator functions to make use of these requests/responses
instead of constructing them directly.

Change-Id: I1e085f88adaf784a34867957a0e82532d3a83d7c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8148
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>

1 files changed, 77 insertions, 3 deletions

diff --git a/tvix/Cargo.lock b/tvix/Cargo.lock
index fa3ac2269b5b..913d88b9fc12 100644
--- a/tvix/Cargo.lock
+++ b/tvix/Cargo.lock
@@ -364,7 +364,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "684a277d672e91966334af371f1a7b5833f9aa00b07c84e92fbce95e00208ce8"
 dependencies = [
  "heck",
- "proc-macro-error",
+ "proc-macro-error 1.0.4",
  "proc-macro2 1.0.50",
  "quote 1.0.23",
  "syn 1.0.107",
@@ -820,6 +820,36 @@ dependencies = [
 ]
 
 [[package]]
+name = "genawaiter"
+version = "0.99.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c86bd0361bcbde39b13475e6e36cb24c329964aa2611be285289d1e4b751c1a0"
+dependencies = [
+ "genawaiter-macro",
+ "genawaiter-proc-macro",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "genawaiter-macro"
+version = "0.99.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b32dfe1fdfc0bbde1f22a5da25355514b5e450c33a6af6770884c8750aedfbc"
+
+[[package]]
+name = "genawaiter-proc-macro"
+version = "0.99.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "784f84eebc366e15251c4a8c3acee82a6a6f427949776ecb88377362a9621738"
+dependencies = [
+ "proc-macro-error 0.4.12",
+ "proc-macro-hack",
+ "proc-macro2 1.0.50",
+ "quote 1.0.23",
+ "syn 1.0.107",
+]
+
+[[package]]
 name = "generic-array"
 version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1546,14 +1576,40 @@ dependencies = [
 
 [[package]]
 name = "proc-macro-error"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18f33027081eba0a6d8aba6d1b1c3a3be58cbb12106341c2d5759fcd9b5277e7"
+dependencies = [
+ "proc-macro-error-attr 0.4.12",
+ "proc-macro2 1.0.50",
+ "quote 1.0.23",
+ "syn 1.0.107",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
 dependencies = [
- "proc-macro-error-attr",
+ "proc-macro-error-attr 1.0.4",
+ "proc-macro2 1.0.50",
+ "quote 1.0.23",
+ "syn 1.0.107",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a5b4b77fdb63c1eca72173d68d24501c54ab1269409f6b672c85deb18af69de"
+dependencies = [
  "proc-macro2 1.0.50",
  "quote 1.0.23",
  "syn 1.0.107",
+ "syn-mid",
  "version_check",
 ]
 
@@ -1569,6 +1625,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "proc-macro-hack"
+version = "0.5.20+deprecated"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
+
+[[package]]
 name = "proc-macro2"
 version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2184,6 +2246,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "syn-mid"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baa8e7560a164edb1621a55d18a0c59abf49d360f47aa7b821061dd7eea7fac9"
+dependencies = [
+ "proc-macro2 1.0.50",
+ "quote 1.0.23",
+ "syn 1.0.107",
+]
+
+[[package]]
 name = "sync_wrapper"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2247,7 +2320,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e45b7bf6e19353ddd832745c8fcf77a17a93171df7151187f26623f2b75b5b26"
 dependencies = [
  "cfg-if",
- "proc-macro-error",
+ "proc-macro-error 1.0.4",
  "proc-macro2 1.0.50",
  "quote 1.0.23",
  "syn 1.0.107",
@@ -2649,6 +2722,7 @@ dependencies = [
  "codemap-diagnostic",
  "criterion",
  "dirs",
+ "genawaiter",
  "imbl",
  "itertools",
  "lazy_static",