experiments/tree-sitter-test/grammar.js

@@ -9,20 +9,17 @@ module.exports = grammar({
         ),
 
         function_definition: $ => seq(
-            'fn',
+            "fn",
             $.identifier,
             $.parameter_list,
-            field("return_type", optional($._type)),
+            $._type,
             $.block,
         ),
         parameter_list: $ => seq("(", /* TODO */ ")"),
 
         block: $ => seq(
             "{",
-            choice(
-                repeat($._statement),
-                "",
-            ),
+            repeat($._statement),
             "}"
         ),
 
@@ -32,16 +29,9 @@ module.exports = grammar({
 
         _return_statement: $ => seq("return", $._expression, ";"),
 
-        _expression: $ => choice($.identifier, $.unary, $.binary),
-
-        unary: $ => prec(4, choice(seq("-", $._expression), seq("!", $._expression))),
-        binary: $ => choice(prec.left(2, seq($._expression, "*", $._expression)), prec.left(1, seq($._expression, "+", $._expression))),
+        _expression: $ => choice($.identifier),
 
         _type: $ => "bool",
-        _type: $ => choice(
-            $.primitive_type,
-        ),
-        primitive_type: $ => choice("bool", "int"),
 
         identifier: $ => /[a-z]+/,
     }

experiments/tree-sitter-test/justfile

@@ -1,8 +0,0 @@
-_default:
-    just --list
-
-# Test out the grammar
-test-grammar:
-    #!/usr/bin/env bash
-    tree-sitter generate
-    tree-sitter test

experiments/tree-sitter-test/test/corpus/test.txt

@@ -1,26 +1,19 @@
 =============
 Initial test
 =============
-fn main() {
 
-}
-----
-(source_file
-    (function_definition
-        (identifier)
-        (parameter_list)
-        (block)
-    )
-)
-
-====
-Another test
-====
-
-fn yolo() bool { }
+hello
 
 ----
 
-(source_file
-    (function_definition
-    (identifier) (parameter_list) (primitive_type) (block)))
+(source_file)
+
+
+=====
+Another
+====
+
+fn main() { }
+
+------
+()