Libraryless. Click here for Pure Java version (3069L/20K/66K).
1 | !752 |
2 | |
3 | !include #1002529 // Explain |
4 | |
5 | answer {
|
6 | if "does this class have a default constructor: *" exceptionToUser {
|
7 | S java = m.unq(0); |
8 | Explain explain = jExplainFull(java, "source"); |
9 | |
10 | // make sure it's actually a class declaration |
11 | //assertTrue("Bad class: " + explain.className(), litlist("classdecl", "emptyclass").contains(explain.className()));
|
12 | |
13 | // go to class declaration instead |
14 | Explain e2 = explain.findFirst("classdecl");
|
15 | if (e2 == null) |
16 | ret "oops " + structure(explain); |
17 | explain = e2; |
18 | |
19 | L<Explain> ctors = explain.findAll2("constructordecl");
|
20 | |
21 | if (empty(ctors)) ret "Yes - an invisible one."; |
22 | |
23 | for (Explain ctor : ctors) {
|
24 | Explain args = ctor.findFirst("argsdecl2");
|
25 | if (args.findFirst("argsdecl") != null) // has arguments - not the default constructor
|
26 | continue; |
27 | ret "Yes."; |
28 | } |
29 | |
30 | ret "No."; |
31 | } |
32 | } |
Began life as a copy of #1002532
download show line numbers debug dex old transpilations
Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt
No comments. add comment
| Snippet ID: | #1002534 |
| Snippet name: | Has Default Constructor Bot |
| Eternal ID of this version: | #1002534/1 |
| Text MD5: | ab5c01fb757a961fd9d17ca4f7f32226 |
| Transpilation MD5: | df56e82046c8294070b53cc5e9823085 |
| Author: | stefan |
| Category: | eleu / thinking about javax |
| Type: | JavaX source code |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2016-02-02 03:21:26 |
| Source code size: | 936 bytes / 32 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 643 / 1084 |
| Referenced in: | [show references] |