Add stdlib as a Rust crate

Cargo.toml

@@ -9,4 +9,5 @@ members = [
     "noirc_errors",
     "noirc_driver",
     "acir",
+    "std_lib",
 ]

noirc_frontend/Cargo.toml

@@ -10,4 +10,5 @@ edition = "2018"
 noir_field = {path = "../noir_field"}
 acir = {path = "../acir"}
 noirc_errors = {path = "../noirc_errors"}
-thiserror = "1.0.21"
+thiserror = "1.0.21"
+std_lib = {path = "../std_lib"}

noirc_frontend/src/analyser/mod.rs

@@ -100,16 +100,13 @@ fn load_local_functions_into_symbol_table(ast: &Program, table: &mut SymbolTable
 }
 
 fn load_low_level_libraries_into_symbol_table(table: &mut SymbolTable) {
-
+    use std_lib::LIB_NOIR;
     // Import std here
-    // XXX: Should be a better way to fetch the absolute path here. 
-    // May have to wait until proper module dependency graph is added
-    let std_lib = std::fs::read_to_string("../../../std/lib.noir").unwrap();
-
+    //
     // Parse and add low level functions into a symbol table
-    // We could define the AST for this in the host language
+    // XXX: We could alternatively define the AST for this in the host language
 
-    let mut parser = crate::Parser::with_input(&std_lib);
+    let mut parser = crate::Parser::with_input(&LIB_NOIR);
     let (program) = parser.parse_program().unwrap();
     let (checked_program, std_table) = check_program(program, true).unwrap();
     // We do nothing with the checked program for two reasons: Every module should have a copy of std_lib

std_lib/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "std_lib"
+version = "0.1.0"
+authors = ["Kevaundray Wedderburn <kevtheappdev@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

std_lib/src/lib.rs

@@ -0,0 +1 @@
+pub const LIB_NOIR : &'static str = include_str!("lib.noir");