src/compiler/compiler.ts

@@ -468,6 +468,13 @@ export class Compiler {
         return instructions
       }
 
+      case terms.Array: {
+        const children = getAllChildren(node)
+        const instructions: ProgramItem[] = children.map((x) => this.#compileNode(x, input)).flat()
+        instructions.push(['MAKE_ARRAY', children.length])
+        return instructions
+      }
+
       default:
         throw new CompilerError(
           `Compiler doesn't know how to handle a "${node.type.name}" node.`,

src/compiler/tests/literals.test.ts

@@ -0,0 +1,36 @@
+import { describe } from 'bun:test'
+import { expect, test } from 'bun:test'
+
+describe('array literals', () => {
+  test('work with numbers', () => {
+    expect('[1 2 3]').toEvaluateTo([1, 2, 3])
+  })
+
+  test('work with strings', () => {
+    expect("['one' 'two' 'three']").toEvaluateTo(['one', 'two', 'three'])
+  })
+
+  test('work with identifiers', () => {
+    expect('[one two three]').toEvaluateTo(['one', 'two', 'three'])
+  })
+
+  test('can be nested', () => {
+    expect('[one [two [three]]]').toEvaluateTo(['one', ['two', ['three']]])
+  })
+
+  test('can span multiple lines', () => {
+    expect(`[
+      1
+      2
+      3
+    ]`).toEvaluateTo([1, 2, 3])
+  })
+
+  test('can span multiple w/o calling functions', () => {
+    expect(`[
+      one
+      two
+      three
+    ]`).toEvaluateTo(['one', 'two', 'three'])
+  })
+})

src/testSetup.ts

@@ -93,11 +93,7 @@ expect.extend({
     }
   },
 
-  async toEvaluateTo(
-    received: unknown,
-    expected: unknown,
-    globals: Record<string, any> = {}
-  ) {
+  async toEvaluateTo(received: unknown, expected: unknown, globals: Record<string, any> = {}) {
     assert(typeof received === 'string', 'toEvaluateTo can only be used with string values')
 
     try {
@@ -109,7 +105,7 @@ expect.extend({
       if (expected instanceof RegExp) expected = String(expected)
       if (value instanceof RegExp) value = String(value)
 
-      if (value === expected) {
+      if (isEqual(value, expected)) {
         return { pass: true }
       } else {
         return {
@@ -165,3 +161,7 @@ const trimWhitespace = (str: string): string => {
     })
     .join('\n')
 }
+
+function isEqual(a: any, b: any): boolean {
+  return typeof a === 'object' ? JSON.stringify(a) === JSON.stringify(b) : a === b
+}