mirror of
https://github.com/qvacua/vimr.git
synced 2024-12-21 12:41:44 +03:00
446 lines
11 KiB
Python
Executable File
446 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
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import subprocess
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import msgpack
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from string import Template
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import re
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import textwrap
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import os
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import io
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void_func_template = Template('''\
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@discardableResult
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public func ${func_name}(${args}
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expectsReturnValue: Bool = true,
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checkBlocked: Bool = true
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) -> NvimApi.Response<Void> {
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if expectsReturnValue && checkBlocked {
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guard let blocked = self.getMode().value?["blocking"]?.boolValue else {
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return .failure(NvimApi.Error.blocked)
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}
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if blocked {
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return .failure(NvimApi.Error.blocked)
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}
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}
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let params: [NvimApi.Value] = [
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${params}
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]
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let response = self.rpc(method: "${nvim_func_name}", params: params, expectsReturnValue: expectsReturnValue)
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if let error = response.error {
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return .failure(error)
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}
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return .success(())
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}
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''')
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get_mode_func_template = Template('''\
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public func ${func_name}(${args}
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) -> NvimApi.Response<${result_type}> {
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let params: [NvimApi.Value] = [
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${params}
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]
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let response = self.rpc(method: "${nvim_func_name}", params: params, expectsReturnValue: true)
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guard let value = response.value else {
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return .failure(response.error!)
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}
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guard let result = (${return_value}) else {
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return .failure(NvimApi.Error.conversion(type: ${result_type}.self))
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}
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return .success(result)
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}
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''')
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func_template = Template('''\
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public func ${func_name}(${args}
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checkBlocked: Bool = true
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) -> NvimApi.Response<${result_type}> {
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if checkBlocked {
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guard let blocked = self.getMode().value?["blocking"]?.boolValue else {
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return .failure(NvimApi.Error.blocked)
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}
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if blocked {
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return .failure(NvimApi.Error.blocked)
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}
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}
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let params: [NvimApi.Value] = [
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${params}
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]
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let response = self.rpc(method: "${nvim_func_name}", params: params, expectsReturnValue: true)
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guard let value = response.value else {
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return .failure(response.error!)
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}
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guard let result = (${return_value}) else {
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return .failure(NvimApi.Error.conversion(type: ${result_type}.self))
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}
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return .success(result)
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}
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''')
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extension_template = Template('''\
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// Auto generated for nvim version ${version}.
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// See bin/generate_api_methods.py
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import MsgPackRpc
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extension NvimApi {
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public enum Error: Swift.Error {
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${error_types}
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case exception(message: String)
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case validation(message: String)
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case blocked
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case conversion(type: Any.Type)
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case unknown
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// array([uint(0), string(Wrong number of arguments: expecting 2 but got 0)])
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init(_ value: NvimApi.Value?) {
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let array = value?.arrayValue
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guard array?.count == 2 else {
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self = .unknown
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return
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}
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guard let rawValue = array?[0].unsignedIntegerValue, let message = array?[1].stringValue else {
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self = .unknown
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return
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}
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switch rawValue {
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${error_cases}
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default: self = .unknown
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}
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}
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}
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}
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public extension NvimApi {
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$body
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}
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extension NvimApi.Buffer {
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init?(_ value: NvimApi.Value) {
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guard let (type, data) = value.extendedValue else {
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return nil
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}
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guard type == ${buffer_type} else {
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return nil
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}
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guard let handle = (try? unpack(data))?.value.integerValue else {
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return nil
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}
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self.handle = Int(handle)
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}
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}
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extension NvimApi.Window {
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init?(_ value: NvimApi.Value) {
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guard let (type, data) = value.extendedValue else {
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return nil
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}
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guard type == ${window_type} else {
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return nil
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}
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guard let handle = (try? unpack(data))?.value.integerValue else {
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return nil
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}
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self.handle = Int(handle)
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}
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}
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extension NvimApi.Tabpage {
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init?(_ value: NvimApi.Value) {
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guard let (type, data) = value.extendedValue else {
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return nil
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}
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guard type == ${tabpage_type} else {
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return nil
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}
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guard let handle = (try? unpack(data))?.value.integerValue else {
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return nil
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}
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self.handle = Int(handle)
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}
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}
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fileprivate func msgPackDictToSwift(_ dict: Dictionary<NvimApi.Value, NvimApi.Value>?) -> Dictionary<String, NvimApi.Value>? {
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return dict?.flatMapToDict { k, v in
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guard let strKey = k.stringValue else {
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return nil
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}
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return (strKey, v)
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}
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}
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fileprivate func msgPackArrayDictToSwift(_ array: [NvimApi.Value]?) -> [Dictionary<String, NvimApi.Value>]? {
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return array?
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.flatMap { v in v.dictionaryValue }
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.flatMap { d in msgPackDictToSwift(d) }
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}
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extension Dictionary {
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fileprivate func mapToDict<K, V>(_ transform: ((key: Key, value: Value)) throws -> (K, V)) rethrows -> Dictionary<K, V> {
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let array = try self.map(transform)
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return tuplesToDict(array)
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}
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fileprivate func flatMapToDict<K, V>(_ transform: ((key: Key, value: Value)) throws -> (K, V)?) rethrows -> Dictionary<K, V> {
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let array = try self.flatMap(transform)
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return tuplesToDict(array)
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}
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fileprivate func tuplesToDict<K:Hashable, V, S:Sequence>(_ sequence: S)
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-> Dictionary<K, V> where S.Iterator.Element == (K, V) {
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var result = Dictionary<K, V>(minimumCapacity: sequence.underestimatedCount)
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for (key, value) in sequence {
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result[key] = value
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}
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return result
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}
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}
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''')
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def snake_to_camel(snake_str):
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components = snake_str.split('_')
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return components[0] + "".join(x.title() for x in components[1:])
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def nvim_type_to_swift(nvim_type):
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if nvim_type == 'Boolean':
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return 'Bool'
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if nvim_type == 'Integer':
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return 'Int'
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if nvim_type == 'Float':
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return nvim_type
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if nvim_type == 'void':
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return 'Void'
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if nvim_type == 'String':
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return 'String'
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if nvim_type == 'Array':
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return 'NvimApi.Value'
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if nvim_type == 'Dictionary':
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return 'Dictionary<String, NvimApi.Value>'
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if nvim_type == 'Buffer':
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return 'NvimApi.Buffer'
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if nvim_type == 'Window':
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return 'NvimApi.Window'
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if nvim_type == 'Tabpage':
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return 'NvimApi.Tabpage'
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if nvim_type == 'Object':
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return 'NvimApi.Value'
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if nvim_type.startswith('ArrayOf('):
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match = re.match(r'ArrayOf\((.*?)(?:, \d+)*\)', nvim_type)
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return '[{}]'.format(nvim_type_to_swift(match.group(1)))
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return 'NvimApi.Value'
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def msgpack_to_swift(msgpack_value_name, type):
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if type == 'Bool':
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return f'{msgpack_value_name}.boolValue'
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if type == 'Int':
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return f'({msgpack_value_name}.integerValue == nil ? nil : Int({msgpack_value_name}.integerValue!))'
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if type == 'Float':
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return f'{msgpack_value_name}.floatValue'
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if type == 'Void':
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return f'()'
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if type == 'String':
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return f'{msgpack_value_name}.stringValue'
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if type == 'NvimApi.Value':
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return f'Optional({msgpack_value_name})'
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if type in 'NvimApi.Buffer':
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return f'NvimApi.Buffer({msgpack_value_name})'
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if type in 'NvimApi.Window':
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return f'NvimApi.Window({msgpack_value_name})'
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if type in 'NvimApi.Tabpage':
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return f'NvimApi.Tabpage({msgpack_value_name})'
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if type.startswith('Dictionary<'):
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return f'msgPackDictToSwift({msgpack_value_name}.dictionaryValue)'
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if type.startswith('[Dictionary<'):
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return f'msgPackArrayDictToSwift({msgpack_value_name}.arrayValue)'
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if type.startswith('['):
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element_type = re.match(r'\[(.*)\]', type).group(1)
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return f'{msgpack_value_name}.arrayValue?.flatMap({{ v in {msgpack_to_swift("v", element_type)} }})'
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return 'NvimApi.Value'
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def swift_to_msgpack_value(name, type):
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if type == 'Bool':
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return f'.bool({name})'
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if type == 'Int':
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return f'.int(Int64({name}))'
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if type == 'Float':
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return f'.float({name})'
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if type == 'Void':
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return f'.nil()'
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if type == 'String':
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return f'.string({name})'
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if type == 'Dictionary<String, NvimApi.Value>':
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return f'.map({name}.mapToDict({{ (Value.string($0), $1) }}))'
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if type == 'NvimApi.Value':
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return name
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if type in ['NvimApi.Buffer', 'NvimApi.Window', 'NvimApi.Tabpage']:
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return f'.int(Int64({name}.handle))'
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if type.startswith('['):
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match = re.match(r'\[(.*)\]', type)
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test = '$0'
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return f'.array({name}.map {{ {swift_to_msgpack_value(test, match.group(1))} }})'
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def parse_args(raw_params):
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types = [nvim_type_to_swift(p[0]) for p in raw_params]
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names = [p[1] for p in raw_params]
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params = dict(zip(names, types))
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result = '\n'.join([n + ': ' + t + ',' for n, t in params.items()])
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if not result:
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return ''
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return '\n' + textwrap.indent(result, ' ')
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def parse_params(raw_params):
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types = [nvim_type_to_swift(p[0]) for p in raw_params]
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names = [p[1] for p in raw_params]
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params = dict(zip(names, types))
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result = '\n'.join([swift_to_msgpack_value(n, t) + ',' for n, t in params.items()])
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return textwrap.indent(result, ' ').strip()
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def parse_function(f):
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args = parse_args(f['parameters'])
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template = void_func_template if f['return_type'] == 'void' else func_template
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template = get_mode_func_template if f['name'] == 'nvim_get_mode' else template
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result = template.substitute(
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func_name=snake_to_camel(f['name'][5:]),
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nvim_func_name=f['name'],
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args=args,
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params=parse_params(f['parameters']),
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result_type=nvim_type_to_swift(f['return_type']),
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return_value=msgpack_to_swift('value', nvim_type_to_swift(f['return_type']))
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)
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return result
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def parse_version(version):
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return '.'.join([str(v) for v in [version['major'], version['minor'], version['patch']]])
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def parse_error_types(error_types):
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return textwrap.indent(
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'\n'.join(
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[f'private static let {t.lower()}RawValue = UInt64({v["id"]})' for t, v in error_types.items()]
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),
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' '
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).lstrip()
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def parse_error_cases(error_types):
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return textwrap.indent(
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'\n'.join(
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[f'case Error.{t.lower()}RawValue: self = .{t.lower()}(message: message)' for t, v in error_types.items()]
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),
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' '
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).lstrip()
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if __name__ == '__main__':
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result_file_path = './NvimMsgPack/NvimApiMethods.generated.swift'
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if 'CONFIGURATION' in os.environ and os.environ['CONFIGURATION'] == 'Debug':
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if os.path.isfile(result_file_path):
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print("Files already there and DEBUG, exiting...")
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exit(0)
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nvim_path = os.environ['NVIM_PATH'] if 'NVIM_PATH' in os.environ else 'nvim'
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nvim_output = subprocess.run([nvim_path, '--api-info'], stdout=subprocess.PIPE)
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api = msgpack.unpackb(nvim_output.stdout, encoding='utf-8')
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version = parse_version(api['version'])
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functions = [f for f in api['functions'] if 'deprecated_since' not in f]
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body = '\n'.join([parse_function(f) for f in functions])
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result = extension_template.substitute(
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body=body,
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version=version,
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error_types=parse_error_types(api['error_types']),
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error_cases=parse_error_cases(api['error_types']),
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buffer_type=api['types']['Buffer']['id'],
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window_type=api['types']['Window']['id'],
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tabpage_type=api['types']['Tabpage']['id']
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)
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with io.open(result_file_path, 'w') as api_methods_file:
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api_methods_file.write(result)
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