Kotlin: not detecting a function in a specific case

[amgdev9]

The name of the parser: Kotlin

The command line you used to run ctags:

$ ctags -R --languages=kotlin .

The content of input file:

package com.example.myapplication.ui.theme

import android.os.Build
import androidx.compose.foundation.isSystemInDarkTheme
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.darkColorScheme
import androidx.compose.material3.dynamicDarkColorScheme
import androidx.compose.material3.dynamicLightColorScheme
import androidx.compose.material3.lightColorScheme
import androidx.compose.runtime.Composable
import androidx.compose.ui.platform.LocalContext

private val DarkColorScheme =
    darkColorScheme(primary = Purple80, secondary = PurpleGrey80, tertiary = Pink80)

private val LightColorScheme =
    lightColorScheme(
        primary = Purple40,
        secondary = PurpleGrey40,
        tertiary = Pink40,

        /* Other default colors to override
        background = Color(0xFFFFFBFE),
        surface = Color(0xFFFFFBFE),
        onPrimary = Color.White,
        onSecondary = Color.White,
        onTertiary = Color.White,
        onBackground = Color(0xFF1C1B1F),
        onSurface = Color(0xFF1C1B1F),
        */
    )

@Composable
fun MyApplicationTheme(
    darkTheme: Boolean = isSystemInDarkTheme(),
    // Dynamic color is available on Android 12+
    dynamicColor: Boolean = true,
    content: @Composable () -> Unit,
) {
    val colorScheme =
        when {
            dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
                val context = LocalContext.current
                if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
            }

            darkTheme -> DarkColorScheme
            else -> LightColorScheme
        }

    MaterialTheme(colorScheme = colorScheme, typography = Typography, content = content)
}

The tags output you are not satisfied with:

(no output for MyApplicationTheme)
...

The tags output you expect:

MyApplicationTheme	./app/src/main/java/com/example/myapplication/ui/theme/Theme.kt	/^fun MyApplicationTheme($/;"	m	package:com.example.myapplication.ui.theme
...

The version of ctags:

Universal Ctags 6.1.0(v6.1.0), Copyright (C) 2015-2023 Universal Ctags Team
Universal Ctags is derived from Exuberant Ctags.
Exuberant Ctags 5.8, Copyright (C) 1996-2009 Darren Hiebert
  Compiled: Mar 17 2024, 12:18:39
  URL: https://ctags.io/
  Output version: 0.0
  Optional compiled features: +wildcards, +regex, +iconv, +option-directory, +xpath, +json, +interactive, +sandbox, +yaml, +packcc, +optscript, +pcre2

How do you get ctags binary:

pacman -S ctags

[masatake]

@dolik-rce Could you look into this one?

[dolik-rce]

There seems to be a problem with parsing of the annotation in function the type in content: @Composable () -> Unit.
It is possible to use parenthesized type content: @Composable (() -> Unit) as a workaround. I'll try to submit a PR with fix soon.

[dolik-rce]

The problem was that the parenthesis after annotation name were parsed as part of the annotation, as if it was @Composable() and the rest of the statement ( -> Unit) didn't make any sense. PR #4176 should fix this.

[masatake]

#4176 fixes this.
@dolik-rce Thank you.

[masatake]

@amgdev9 Thank you for reporting.

[amgdev9]

@dolik-rce @masatake Thanks to you for solving it! 😄