test(parser): make the test pass.

crates/fuse-parser/src/parsers/expressions.rs

@@ -43,6 +43,7 @@ impl<'a> Parser<'a> {
         let token = self.consume();
         println!("{token:?}, {:?}", self.cur_kind());
         let params = self.parse_function_parameters()?;
+        let end = self.consume_expect(TokenKind::End);
         Ok(Function {
             span: self.end_span(start),
             params,

crates/fuse-parser/tests/cases/pass/function-expression-01/ast.snap

@@ -0,0 +1,29 @@
+---
+source: crates/fuse-parser/tests/cases/mod.rs
+expression: parsed.chunk
+input_file: crates/fuse-parser/tests/cases/pass/function-expression-01/case.fuse
+---
+Some(Chunk(
+  span: Span(
+    start: 0,
+    end: 16,
+  ),
+  body: Block(
+    statements: [
+      Expression(Function(Function(
+        span: Span(
+          start: 0,
+          end: 15,
+        ),
+        params: FunctionParameters(
+          span: Span(
+            start: 9,
+            end: 11,
+          ),
+          items: [],
+          rest: None,
+        ),
+      ))),
+    ],
+  ),
+))

crates/fuse-parser/tests/cases/pass/function-expression-01/tokens.snap

@@ -0,0 +1,75 @@
+---
+source: crates/fuse-parser/tests/cases/mod.rs
+expression: tokens
+input_file: crates/fuse-parser/tests/cases/pass/function-expression-01/case.fuse
+---
+[
+  TokenReference(
+    token: Token(
+      span: Span(
+        start: 0,
+        end: 8,
+      ),
+      kind: Function,
+    ),
+    leading_trivia: [],
+    trailing_trivia: [
+      Token(
+        span: Span(
+          start: 8,
+          end: 9,
+        ),
+        kind: Whitespace,
+      ),
+    ],
+  ),
+  TokenReference(
+    token: Token(
+      span: Span(
+        start: 9,
+        end: 10,
+      ),
+      kind: LParen,
+    ),
+    leading_trivia: [],
+    trailing_trivia: [],
+  ),
+  TokenReference(
+    token: Token(
+      span: Span(
+        start: 10,
+        end: 11,
+      ),
+      kind: RParen,
+    ),
+    leading_trivia: [],
+    trailing_trivia: [
+      Token(
+        span: Span(
+          start: 11,
+          end: 12,
+        ),
+        kind: Whitespace,
+      ),
+    ],
+  ),
+  TokenReference(
+    token: Token(
+      span: Span(
+        start: 12,
+        end: 15,
+      ),
+      kind: End,
+    ),
+    leading_trivia: [],
+    trailing_trivia: [
+      Token(
+        span: Span(
+          start: 15,
+          end: 16,
+        ),
+        kind: Whitespace,
+      ),
+    ],
+  ),
+]