fix some tests without std feature enabled

trilogy/src/bin/trilogy/main.rs

@@ -21,12 +21,12 @@ struct Cli {
 enum Command {
     /// Start up the interactive Trilogy REPL.
     Repl,
-    #[cfg(feature = "std")]
     /// Run a Trilogy program.
     Run {
         /// The path to the Trilogy source file containing the `main!()` procedure.
         file: PathBuf,
         /// Run without including the standard library.
+        #[cfg(feature = "std")]
         #[arg(short = 'S', long)]
         no_std: bool,
         /// Print the exit value instead of using it as the exit code.
@@ -62,12 +62,12 @@ enum Command {
         #[arg(long = "lib")]
         library: bool,
     },
-    #[cfg(feature = "std")]
     /// Check the syntax and warnings of a Trilogy program.
     Check {
         /// The path to the Trilogy source file containing the `main!()` procedure.
         file: PathBuf,
         /// Check without including the standard library.
+        #[cfg(feature = "std")]
         #[arg(short = 'S', long)]
         no_std: bool,
     },
@@ -158,12 +158,22 @@ fn main_sync() -> std::io::Result<()> {
     let args = Cli::parse();
 
     match args.command {
-        #[cfg(feature = "std")]
         Command::Run {
             file,
             print,
-            no_std: _,
             debug,
+            #[cfg(feature = "std")]
+                no_std: true,
+        } => match Builder::new().build_from_source(file) {
+            Ok(trilogy) => run(trilogy, print, debug),
+            Err(report) => {
+                report.eprint();
+                std::process::exit(1);
+            }
+        },
+        #[cfg(feature = "std")]
+        Command::Run {
+            file, print, debug, ..
         } => match Trilogy::from_file(file) {
             Ok(trilogy) => run(trilogy, print, debug),
             Err(report) => {
@@ -208,8 +218,18 @@ fn main_sync() -> std::io::Result<()> {
                 }
             }
         }
+        Command::Check {
+            file,
+            #[cfg(feature = "std")]
+                no_std: true,
+        } => {
+            if let Err(report) = Builder::new().build_from_source(file) {
+                report.eprint();
+                std::process::exit(1);
+            }
+        }
         #[cfg(feature = "std")]
-        Command::Check { file, no_std: _ } => {
+        Command::Check { file, .. } => {
             if let Err(report) = Trilogy::from_file(file) {
                 report.eprint();
                 std::process::exit(1);

trilogy/src/lib.rs

@@ -8,23 +8,42 @@
 //!
 //! # Embedding
 //!
-//! In the simplest case, a Trilogy program is loaded from a file external to the
-//! running Rust program.
-//!
-//! ```no_run
-//! use trilogy::Trilogy;
-//! let trilogy = Trilogy::from_file("./path/to/main.tri").unwrap();
-//! let exit_value = trilogy.run().unwrap();
-//! ```
-//!
-//! For more advanced usage, the [`Builder`][] allows for customizing the module
-//! resolution system and injecting libraries directly into the instance.
-//!
-//! ```no_run
-//! use trilogy::Builder;
-//! let trilogy = Builder::default().build_from_source("./path/to/main.tri").unwrap();
-//! let exit_value = trilogy.run().unwrap();
-//! ```
+
+#![cfg_attr(
+    feature = "std",
+    doc = r##"
+In the simplest case, a Trilogy program is loaded from a file external to the
+running Rust program.
+
+```no_run
+use trilogy::Trilogy;
+let trilogy = Trilogy::from_file("./path/to/main.tri").unwrap();
+let exit_value = trilogy.run().unwrap();
+```
+
+For more advanced usage, the [`Builder`][] allows for customizing the module
+resolution system and injecting libraries directly into the instance.
+
+```no_run
+use trilogy::Builder;
+let trilogy = Builder::new().build_from_source("./path/to/main.tri").unwrap();
+let exit_value = trilogy.run().unwrap();
+```
+"##
+)]
+#![cfg_attr(
+    not(feature = "std"),
+    doc = r##"
+Without the `std` feature enabled, the [`Builder`][] must be used to manually set up the
+module resolution system and injected libraries to compile the program.
+
+```no_run
+use trilogy::Builder;
+let trilogy = Builder::new().build_from_source("./path/to/main.tri").unwrap();
+let exit_value = trilogy.run().unwrap();
+```
+"##
+)]
 
 #[cfg(feature = "std")]
 mod stdlib;

trilogy/tests/samples.rs

@@ -1,13 +1,15 @@
 use std::collections::{HashMap, HashSet};
 use std::path::PathBuf;
-use trilogy::{Builder, Trilogy};
+use trilogy::Builder;
 use trilogy_vm::{Struct, StructuralEq, Value};
 
 const TEST_DIR: &str = "../samples";
 
 macro_rules! include_tri {
     ($path:literal) => {{
-        Trilogy::from_file(PathBuf::from(TEST_DIR).join($path)).unwrap()
+        Builder::new()
+            .build_from_source(PathBuf::from(TEST_DIR).join($path))
+            .unwrap()
     }};
 }