From ea029c89aff87d3d4b352a495d06b1fe67ec4432 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Wed, 7 Jun 2023 19:27:16 +0100
Subject: Add parser for type level references

---
 .../shedlang/compiler/ast/UntypedTypeLevelExpressionNode.java |  4 ++++
 .../shedlang/compiler/ast/UntypedTypeLevelReferenceNode.java  |  9 +++++++++
 src/main/java/org/shedlang/compiler/parser/Parser.java        | 11 +++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelExpressionNode.java
 create mode 100644 src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelReferenceNode.java

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelExpressionNode.java b/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelExpressionNode.java
new file mode 100644
index 00000000..2d9ed626
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelExpressionNode.java
@@ -0,0 +1,4 @@
+package org.shedlang.compiler.ast;
+
+public sealed interface UntypedTypeLevelExpressionNode extends UntypedNode permits UntypedTypeLevelReferenceNode {
+}
diff --git a/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelReferenceNode.java b/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelReferenceNode.java
new file mode 100644
index 00000000..261b6e8f
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/ast/UntypedTypeLevelReferenceNode.java
@@ -0,0 +1,9 @@
+package org.shedlang.compiler.ast;
+
+import org.shedlang.compiler.sources.Source;
+
+public record UntypedTypeLevelReferenceNode(
+    String name,
+    Source source
+) implements UntypedTypeLevelExpressionNode {
+}
diff --git a/src/main/java/org/shedlang/compiler/parser/Parser.java b/src/main/java/org/shedlang/compiler/parser/Parser.java
index 74f9a79b..68def52d 100644
--- a/src/main/java/org/shedlang/compiler/parser/Parser.java
+++ b/src/main/java/org/shedlang/compiler/parser/Parser.java
@@ -153,6 +153,17 @@ public class Parser {
         }
     }
 
+    static UntypedTypeLevelExpressionNode parseTopLevelTypeLevelExpression(TokenIterator<TokenType> tokens) {
+        var start = tokens.position();
+
+        var name = tokens.nextValue(TokenType.IDENTIFIER);
+
+        var end = tokens.position();
+        var source = start.to(end);
+
+        return new UntypedTypeLevelReferenceNode(name, source);
+    }
+
     static UntypedNamespaceNode parseNamespace(TokenIterator<TokenType> tokens) {
         var start = tokens.position();
         var end = tokens.position();
-- 
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