Change string argument syntax to list argument syntax

Changes string arguments from "name" to [name], to prepare for generic
lists in the language. Doesn't compile.

2 files changed, 16 insertions, 9 deletions

diff --git a/src/stages/semantic.rs b/src/stages/semantic.rs
index eb9e7b6..b72cfa8 100644
--- a/src/stages/semantic.rs
+++ b/src/stages/semantic.rs
@@ -431,11 +431,13 @@ impl SemanticParser {
         let token = self.syntactic.pop()?;
         let source = token.source;
         match token.value {
+            // Integer-type argument.
             SyntacticToken::Symbol(ScopedSymbol::Global(name)) => {
                 let variant = ArgumentType::Integer;
                 let definition = ArgumentDefinition { name, variant };
                 return Some(Tracked::from(definition, source));
             }
+            // Block-type argument.
             SyntacticToken::BlockLiteral(mut tokens) => {
                 if tokens.len() == 1 {
                     let token = tokens.pop().unwrap();
@@ -446,11 +448,16 @@ impl SemanticParser {
                     }
                 }
             }
-            SyntacticToken::StringLiteral(string) => {
-                let variant = ArgumentType::String;
-                let name = string.string;
-                let definition = ArgumentDefinition { name, variant };
-                return Some(Tracked::from(definition, source));
+            // List-type argument.
+            SyntacticToken::Expression(mut tokens) => {
+                if tokens.len() == 1 {
+                    let token = tokens.pop().unwrap();
+                    if let SyntacticToken::Symbol(ScopedSymbol::Global(name)) = token.value {
+                        let variant = ArgumentType::List;
+                        let definition = ArgumentDefinition { name, variant };
+                        return Some(Tracked::from(definition, source));
+                    }
+                }
             }
             _ => (),
         };
diff --git a/src/stages/semantic_tokens.rs b/src/stages/semantic_tokens.rs
index f112f7f..95a7f21 100644
--- a/src/stages/semantic_tokens.rs
+++ b/src/stages/semantic_tokens.rs
@@ -21,7 +21,7 @@ pub struct ArgumentDefinition {
 pub enum ArgumentType {
     Integer,
     Block,
-    String,
+    List,
 }
 
 impl std::fmt::Display for ArgumentType {
@@ -29,7 +29,7 @@ impl std::fmt::Display for ArgumentType {
         match self {
             ArgumentType::Integer => write!(f, "an integer"),
             ArgumentType::Block => write!(f, "a block"),
-            ArgumentType::String => write!(f, "a string"),
+            ArgumentType::List => write!(f, "a list"),
         }
     }
 }
@@ -216,8 +216,8 @@ fn print_argument_definition(i: usize, argument: &ArgumentDefinition) {
         ArgumentType::Block => {
             indent!(i, "Argument({}, block)", argument.name)
         }
-        ArgumentType::String => {
-            indent!(i, "Argument({}, string)", argument.name)
+        ArgumentType::List => {
+            indent!(i, "Argument({}, list)", argument.name)
         }
     }
 }