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feat(codemode): support loop sequence syntax (#35618)

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Kit Langton 2026-07-06 17:59:13 -04:00 • committed by GitHub
commit b046bbe4e3
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2 changed files with 68 additions and 5 deletions
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25
packages/codemode/src/interpreter/runtime.ts
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@ -1088,7 +1088,7 @@ class Interpreter<R> {
}
let declaration: { readonly pattern: AstNode; readonly mutable: boolean } | undefined
let assignmentName: string | undefined
let assignment: AstNode | undefined
if (left.type === "VariableDeclaration") {
const declarations = getArray(left, "declarations")
@ -1098,8 +1098,13 @@ class Interpreter<R> {
const declarator = asNode(declarations[0], "declarations[0]")
declaration = { pattern: getNode(declarator, "id"), mutable: getString(left, "kind") !== "const" }
} else if (left.type === "Identifier") {
assignmentName = getString(left, "name")
} else if (
left.type === "Identifier" ||
left.type === "MemberExpression" ||
left.type === "ArrayPattern" ||
left.type === "ObjectPattern"
) {
assignment = left
} else {
throw new InterpreterRuntimeError("Unsupported for...of binding.", left)
}
@ -1108,8 +1113,8 @@ class Interpreter<R> {
if (declaration) {
self.pushScope()
yield* self.declarePattern(declaration.pattern, value, declaration.mutable, left)
} else if (assignmentName) {
self.setIdentifierValue(assignmentName, value, left)
} else if (assignment) {
yield* self.assignPattern(assignment, value, left)
}
const result = yield* self.evaluateStatement(body).pipe(
@ -1507,6 +1512,16 @@ class Interpreter<R> {
return this.evaluateUnaryExpression(node)
case "AssignmentExpression":
return this.evaluateAssignmentExpression(node)
case "SequenceExpression": {
const self = this
return Effect.gen(function* () {
let result: unknown
for (const expression of getArray(node, "expressions")) {
result = yield* self.evaluateExpression(asNode(expression, "expressions"))
}
return result
})
}
case "CallExpression":
return this.evaluateCallExpression(node)
case "ArrowFunctionExpression":