From ba94e799aa352c2fd472b694c745388e3e9feee8 Mon Sep 17 00:00:00 2001
From: Akshay Nair <phenax5@gmail.com>
Date: Thu, 13 Jan 2022 21:20:35 +0530
Subject: feat(eval): implements or

---
 src/eval/index.ts | 15 ++++++++-------
 src/types.ts      |  2 +-
 2 files changed, 9 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/eval/index.ts b/src/eval/index.ts
index 4c47adf..d0d7363 100644
--- a/src/eval/index.ts
+++ b/src/eval/index.ts
@@ -82,6 +82,14 @@ const checkExpr = <T>(
         )
       },
 
+      Or: ({ exprs }) => {
+        const match = exprs.find(expr => checkExpr(expr, item, list, index).length > 0)
+        return pipe(
+          match ? [group(item, index)] : [],
+          skip(1),
+        )
+      },
+
       PropertyMatch: ({ name, expr }) =>
         pipe(
           Object.prototype.hasOwnProperty.call(item ?? {}, name)
@@ -103,13 +111,6 @@ const checkExpr = <T>(
         )
       },
 
-      // Or: ({ left, right }) => {
-      //   return pipe(
-      //     [],
-      //     skip(1),
-      //   )
-      // },
-
       _: _ => { throw new Error(`TODO: ${expr.tag} not implemented for match`) },
     }),
   )
diff --git a/src/types.ts b/src/types.ts
index 97ff81d..bc30453 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -16,7 +16,6 @@ export type Expr = Union<{
   Optional: { expr: Expr },
   OneOrMore: { expr: Expr },
   ZeroOrMore: { expr: Expr },
-  NextItem: _,
   AnyItem: _,
   Or: { exprs: Expr[] },
   AnyString: _,
@@ -27,6 +26,7 @@ export type Expr = Union<{
   Group: { exprs: Expr[] },
   PropertyMatch: { name: string, expr: Expr },
   Literal: Literal,
+  NextItem: _,
 }>
 export const Expr = constructors<Expr>()
 
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