new thing compiles

schala-lib/src/language.rs

@@ -7,6 +7,9 @@ pub struct LLVMCodeString(pub String);
 
 #[derive(Debug, Default, Serialize, Deserialize)]
 pub struct EvalOptions {
+  pub debug: DebugOptions,
+  pub execution_method: ExecutionMethod
+  /*
   pub debug_tokens: bool,
   pub debug_parse: bool,
   pub debug_type: bool,
@@ -14,6 +17,28 @@ pub struct EvalOptions {
   pub show_llvm_ir: bool,
   pub trace_evaluation: bool,
   pub compile: bool,
+  */
+}
+#[derive(Debug, Serialize, Deserialize)]
+pub enum ExecutionMethod {
+  Compile,
+  Interpret,
+}
+impl Default for ExecutionMethod {
+  fn default() -> ExecutionMethod {
+    ExecutionMethod::Interpret
+  }
+}
+
+#[derive(Debug, Default, Serialize, Deserialize)]
+pub struct DebugOptions {
+  pub tokens: bool,
+  pub parse_tree: bool,
+  pub ast: bool,
+  pub type_checking: bool,
+  pub symbol_table: bool,
+  pub evaluation: bool,
+  pub llvm_ir: bool,
 }
 
 #[derive(Debug, Default)]
@@ -76,22 +101,19 @@ impl UnfinishedComputation {
 }
 
 impl FinishedComputation {
-  pub fn to_string(&self) -> String {
+  pub fn to_repl(&self) -> String {
     match self.text_output {
       Ok(ref s) => s.clone(),
       Err(ref s) => format!("Error: {}", s)
     }
   }
+  pub fn to_noninteractive(&self) -> Option<String> {
+    match self.text_output {
+      Ok(ref s) => None,
+      Err(ref s) => Some(format!("Error: {}", s)),
+    }
   }
-
-/*
-//TODO I'll probably wanna implement this later
-#[derive(Debug)]
-pub struct CompilationOutput {
-  output: LLVMCodeString,
-  artifacts: Vec<TraceArtifact>,
 }
-*/
 
 #[derive(Debug)]
 pub struct TraceArtifact {
@@ -124,14 +146,17 @@ impl TraceArtifact {
 }
 
 pub trait ProgrammingLanguageInterface {
+  /* old */
   fn evaluate_in_repl(&mut self, input: &str, eval_options: &EvalOptions) -> LanguageOutput {
     LanguageOutput { output: format!("Defunct"), artifacts: vec![], failed: false }
   }
   fn evaluate_noninteractive(&mut self, input: &str, eval_options: &EvalOptions) -> LanguageOutput {
     self.evaluate_in_repl(input, eval_options)
   }
+  /* old */
 
-  fn repl_evaluate(&mut self, input: &str, eval_options: &EvalOptions) -> FinishedComputation {
+
+  fn execute(&mut self, input: &str, eval_options: &EvalOptions) -> FinishedComputation {
     FinishedComputation { artifacts: HashMap::new(), text_output: Err(format!("REPL evaluation not implemented")) }
   }
   fn get_language_name(&self) -> String;

schala-lib/src/lib.rs

@@ -5,6 +5,7 @@
 extern crate getopts;
 extern crate rustyline;
 extern crate itertools;
+
 #[macro_use]
 extern crate lazy_static;
 #[macro_use]
@@ -32,7 +33,7 @@ pub mod llvm_wrap;
 
 include!(concat!(env!("OUT_DIR"), "/static.rs"));
 
-pub use language::{ProgrammingLanguageInterface, EvalOptions, TraceArtifact, LanguageOutput, LLVMCodeString, FinishedComputation, UnfinishedComputation};
+pub use language::{ProgrammingLanguageInterface, EvalOptions, ExecutionMethod, TraceArtifact, LanguageOutput, LLVMCodeString, FinishedComputation, UnfinishedComputation};
 pub type PLIGenerator = Box<Fn() -> Box<ProgrammingLanguageInterface> + Send + Sync>;
 
 pub fn schala_main(generators: Vec<PLIGenerator>) {
@@ -67,15 +68,14 @@ pub fn schala_main(generators: Vec<PLIGenerator>) {
     .unwrap_or(0);
 
   let mut options = EvalOptions::default();
-  options.compile = match option_matches.opt_str("eval-style") {
-    Some(ref s) if s == "compile" => true,
-    _ => false
+  options.execution_method = match option_matches.opt_str("eval-style") {
+    Some(ref s) if s == "compile" => ExecutionMethod::Compile,
+    _ => ExecutionMethod::Interpret,
   };
 
   match option_matches.free[..] {
     [] | [_] => {
       let mut repl = Repl::new(languages, initial_index);
-      repl.options.show_llvm_ir = true; //TODO make this be configurable
       repl.run();
     }
     [_, ref filename, _..] => {
@@ -102,17 +102,17 @@ fn run_noninteractive(filename: &str, languages: Vec<Box<ProgrammingLanguageInte
 
   source_file.read_to_string(&mut buffer).unwrap();
 
-  if options.compile {
-    if !language.can_compile() {
-      panic!("Trying to compile a non-compileable language");
-    } else {
+  match options.execution_method {
+    ExecutionMethod::Compile => {
+      /*
       let llvm_bytecode = language.compile(&buffer);
       compilation_sequence(llvm_bytecode, filename);
-    }
-  } else {
-    let output = language.evaluate_in_repl(&buffer, &options);
-    if output.failed {
-      println!("{}", output.to_string());
+      */
+      panic!("Not ready to go yet");
+    },
+    ExecutionMethod::Interpret => {
+      let output = language.execute(&buffer, &options);
+      output.to_noninteractive().map(|text| println!("{}", text));
     }
   }
 }
@@ -198,8 +198,8 @@ impl Repl {
 
   fn input_handler(&mut self, input: &str) -> String {
     let ref mut language = self.languages[self.current_language_index];
-    let interpreter_output = language.repl_evaluate(input, &self.options);
-    interpreter_output.to_string()
+    let interpreter_output = language.execute(input, &self.options);
+    interpreter_output.to_repl()
   }
 
   fn handle_interpreter_directive(&mut self, input: &str) -> bool {
@@ -285,14 +285,11 @@ impl Repl {
           }
         };
         match commands.get(2) {
-          Some(&"tokens") => self.options.debug_tokens = show,
-          Some(&"parse") => self.options.debug_parse = show,
-          Some(&"symbols") => self.options.debug_symbol_table = show,
-          Some(&"eval") => {
-            //let ref mut language = self.languages[self.current_language_index];
-            //language.set_option("trace_evaluation", show);
-          },
-          Some(&"llvm") => self.options.show_llvm_ir = show,
+          Some(&"tokens") => self.options.debug.tokens = show,
+          Some(&"parse") => self.options.debug.parse_tree = show,
+          Some(&"ast") => self.options.debug.ast = show,
+          Some(&"symbols") => self.options.debug.symbol_table = show,
+          Some(&"llvm") => self.options.debug.llvm_ir = show,
           Some(e) => {
             println!("Bad `show`/`hide` argument: {}", e);
             return true;

src/maaru_lang/mod.rs

@@ -43,7 +43,7 @@ impl<'a> ProgrammingLanguageInterface for Maaru<'a> {
 
     let tokens = match tokenizer::tokenize(input) {
       Ok(tokens) => {
-        if options.debug_tokens {
+        if options.debug.tokens {
           output.add_artifact(TraceArtifact::new("tokens", format!("{:?}", tokens)));
         }
         tokens
@@ -56,7 +56,7 @@ impl<'a> ProgrammingLanguageInterface for Maaru<'a> {
 
     let ast = match parser::parse(&tokens, &[]) {
       Ok(ast) => {
-        if options.debug_parse {
+        if options.debug.ast {
           output.add_artifact(TraceArtifact::new("ast", format!("{:?}", ast)));
         }
         ast

src/schala_lang/mod.rs

@@ -1,5 +1,5 @@
 use itertools::Itertools;
-use schala_lib::{ProgrammingLanguageInterface, EvalOptions, TraceArtifact, LanguageOutput, UnfinishedComputation, FinishedComputation};
+use schala_lib::{ProgrammingLanguageInterface, EvalOptions, TraceArtifact, UnfinishedComputation, FinishedComputation};
 
 macro_rules! bx {
   ($e:expr) => { Box::new($e) }
@@ -12,7 +12,6 @@ mod parsing;
 mod typechecking;
 mod eval;
 
-
 use self::typechecking::{TypeContext};
 
 pub struct Schala {
@@ -38,7 +37,7 @@ impl ProgrammingLanguageInterface for Schala {
     format!("schala")
   }
 
-  fn repl_evaluate(&mut self, input: &str, options: &EvalOptions) -> FinishedComputation {
+  fn execute(&mut self, input: &str, options: &EvalOptions) -> FinishedComputation {
     let mut evaluation = UnfinishedComputation::default();
 
     //tokenzing