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authorFlorian Diebold <[email protected]>2019-12-07 10:52:20 +0000
committerFlorian Diebold <[email protected]>2019-12-07 10:54:26 +0000
commitde08d30b80f80ee0eaecf4dddb72e6fb829a46b6 (patch)
treef46baf6b44f24cb80eac113ca2f1e1737cd5e085 /crates/ra_assists/src/assists
parent431836f4a01dda39d10f6275915f9c8e99a28028 (diff)
Get rid of unwraps in add_new
Probably fixes #2464.
Diffstat (limited to 'crates/ra_assists/src/assists')
-rw-r--r--crates/ra_assists/src/assists/add_new.rs45
1 files changed, 21 insertions, 24 deletions
diff --git a/crates/ra_assists/src/assists/add_new.rs b/crates/ra_assists/src/assists/add_new.rs
index f977547fb..d340cac8f 100644
--- a/crates/ra_assists/src/assists/add_new.rs
+++ b/crates/ra_assists/src/assists/add_new.rs
@@ -56,42 +56,39 @@ pub(crate) fn add_new(ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
56 let vis = vis.as_ref().map(String::as_str).unwrap_or(""); 56 let vis = vis.as_ref().map(String::as_str).unwrap_or("");
57 write!(&mut buf, " {}fn new(", vis).unwrap(); 57 write!(&mut buf, " {}fn new(", vis).unwrap();
58 58
59 join(field_list.fields().map(|f| { 59 join(field_list.fields().filter_map(|f| {
60 format!( 60 Some(format!("{}: {}", f.name()?.syntax().text(), f.ascribed_type()?.syntax().text()))
61 "{}: {}",
62 f.name().unwrap().syntax().text(),
63 f.ascribed_type().unwrap().syntax().text()
64 )
65 })) 61 }))
66 .separator(", ") 62 .separator(", ")
67 .to_buf(&mut buf); 63 .to_buf(&mut buf);
68 64
69 buf.push_str(") -> Self { Self {"); 65 buf.push_str(") -> Self { Self {");
70 66
71 join(field_list.fields().map(|f| f.name().unwrap().syntax().text())) 67 join(field_list.fields().filter_map(|f| Some(f.name()?.syntax().text())))
72 .separator(", ") 68 .separator(", ")
73 .surround_with(" ", " ") 69 .surround_with(" ", " ")
74 .to_buf(&mut buf); 70 .to_buf(&mut buf);
75 71
76 buf.push_str("} }"); 72 buf.push_str("} }");
77 73
78 let (start_offset, end_offset) = if let Some(impl_block) = impl_block { 74 let (start_offset, end_offset) = impl_block
79 buf.push('\n'); 75 .and_then(|impl_block| {
80 let start = impl_block 76 buf.push('\n');
81 .syntax() 77 let start = impl_block
82 .descendants_with_tokens() 78 .syntax()
83 .find(|t| t.kind() == T!['{']) 79 .descendants_with_tokens()
84 .unwrap() 80 .find(|t| t.kind() == T!['{'])?
85 .text_range() 81 .text_range()
86 .end(); 82 .end();
87 83
88 (start, TextUnit::from_usize(1)) 84 Some((start, TextUnit::from_usize(1)))
89 } else { 85 })
90 buf = generate_impl_text(&strukt, &buf); 86 .unwrap_or_else(|| {
91 let start = strukt.syntax().text_range().end(); 87 buf = generate_impl_text(&strukt, &buf);
92 88 let start = strukt.syntax().text_range().end();
93 (start, TextUnit::from_usize(3)) 89
94 }; 90 (start, TextUnit::from_usize(3))
91 });
95 92
96 edit.set_cursor(start_offset + TextUnit::of_str(&buf) - end_offset); 93 edit.set_cursor(start_offset + TextUnit::of_str(&buf) - end_offset);
97 edit.insert(start_offset, buf); 94 edit.insert(start_offset, buf);