Use features in LLVM wrapper instead of branch

Author: PrestonHager

README.md

@@ -24,7 +24,7 @@ Make sure you have
 2. Cloned this repository (follow the instructions in each chapter)
 3. LLVM installed to run and test locally `cargo test --tests`
     * Easiest option is LLVM v10.0 ([Debian/Ubuntu](https://apt.llvm.org/) or [macOS](https://formulae.brew.sh/formula/llvm))
-    * Otherwise, in `Cargo.toml` you'd need to change the `inkwell = { ..., branch = "your-llvm-version" }` with LLVM version on your system (output of `llvm-config --version`)
+    * Otherwise, in `Cargo.toml` you'd need to change the `inkwell = { ..., features = ["your-llvm-version"] }` with LLVM version on your system (output of `llvm-config --version`)
 
 
 To build the book locally, navigate to the `book` subdirectory and follow the instructions in [mdbook](https://github.com/rust-lang/mdBook).

book/src/01_calculator/basic_llvm.md

@@ -3,10 +3,10 @@
 
 ### Setup
 
-The code is available in [`calculator/examples/llvm/src/main.rs`](https://github.com/ehsanmok/create-your-own-lang-with-rust/blob/master/calculator/examples/llvm/src/main.rs). Because my `llvm-config --version` shows `10.0.0` so I'm using `branch = "llvm=10-0"` in inkwell
+The code is available in [`calculator/examples/llvm/src/main.rs`](https://github.com/ehsanmok/create-your-own-lang-with-rust/blob/master/calculator/examples/llvm/src/main.rs). Because my `llvm-config --version` shows `10.0.0` so I'm using `features = ["llvm10-0"]` in inkwell
 
 ```text
-inkwell = { git = "https://github.com/TheDan64/inkwell", branch = "llvm10-0" }
+inkwell = { git = "https://github.com/TheDan64/inkwell", branch = "master", features = ["llvm10-0"] }
 ```
 
 Go to [`calculator/examples/llvm`](https://github.com/ehsanmok/create-your-own-lang-with-rust/blob/master/calculator/examples/llvm/) sub-crate and `cargo run`.

calculator/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 pest = "2.1"
 pest_derive = "2.1"
 anyhow = "1.0"
-inkwell = { git = "https://github.com/TheDan64/inkwell", branch = "llvm10-0" }  # use branch according to your llvm version
+inkwell = { git = "https://github.com/TheDan64/inkwell", branch = "master", features = ["llvm10-0"] }  # use correct feature according to your llvm version
 rustyline = "6.2"
 cfg-if = "0.1"
 

calculator/src/compiler/jit.rs

@@ -1,6 +1,6 @@
 use inkwell::{
     builder::Builder, context::Context, execution_engine::JitFunction, types::IntType,
-    values::IntValue, OptimizationLevel,
+    values::IntValue, values::AnyValue, OptimizationLevel,
 };
 
 use crate::{Compile, Node, Operator, Result};