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authorEdwin Cheng <[email protected]>2020-05-10 09:27:31 +0100
committerEdwin Cheng <[email protected]>2020-05-10 09:27:31 +0100
commit9405116d51b2d078557873fafbf3d91f19d332a7 (patch)
tree266ad44db2a9b4f0e24e5a7a5cfe6b8c9b59e1f2 /crates
parentf1cb5b8a29ce509bf1f8d6df97d4b6586b9a2dac (diff)
Hot fix panic for function_signature
Diffstat (limited to 'crates')
-rw-r--r--crates/ra_ide/src/display/function_signature.rs20
1 files changed, 13 insertions, 7 deletions
diff --git a/crates/ra_ide/src/display/function_signature.rs b/crates/ra_ide/src/display/function_signature.rs
index f16d42276..3d3147254 100644
--- a/crates/ra_ide/src/display/function_signature.rs
+++ b/crates/ra_ide/src/display/function_signature.rs
@@ -84,8 +84,8 @@ impl FunctionSignature {
84 let ty = field.signature_ty(db); 84 let ty = field.signature_ty(db);
85 let raw_param = format!("{}", ty.display(db)); 85 let raw_param = format!("{}", ty.display(db));
86 86
87 if let Some(param_type) = raw_param.split(':').nth(1) { 87 if let Some(param_type) = raw_param.split(':').nth(1).and_then(|it| it.get(1..)) {
88 parameter_types.push(param_type[1..].to_string()); 88 parameter_types.push(param_type.to_string());
89 } else { 89 } else {
90 // useful when you have tuple struct 90 // useful when you have tuple struct
91 parameter_types.push(raw_param.clone()); 91 parameter_types.push(raw_param.clone());
@@ -129,8 +129,9 @@ impl FunctionSignature {
129 for field in variant.fields(db).into_iter() { 129 for field in variant.fields(db).into_iter() {
130 let ty = field.signature_ty(db); 130 let ty = field.signature_ty(db);
131 let raw_param = format!("{}", ty.display(db)); 131 let raw_param = format!("{}", ty.display(db));
132 if let Some(param_type) = raw_param.split(':').nth(1) { 132 dbg!(&raw_param);
133 parameter_types.push(param_type[1..].to_string()); 133 if let Some(param_type) = raw_param.split(':').nth(1).and_then(|it| it.get(1..)) {
134 parameter_types.push(param_type.to_string());
134 } else { 135 } else {
135 // The unwrap_or_else is useful when you have tuple 136 // The unwrap_or_else is useful when you have tuple
136 parameter_types.push(raw_param); 137 parameter_types.push(raw_param);
@@ -197,7 +198,12 @@ impl From<&'_ ast::FnDef> for FunctionSignature {
197 let raw_param = self_param.syntax().text().to_string(); 198 let raw_param = self_param.syntax().text().to_string();
198 199
199 res_types.push( 200 res_types.push(
200 raw_param.split(':').nth(1).unwrap_or_else(|| " Self")[1..].to_string(), 201 raw_param
202 .split(':')
203 .nth(1)
204 .and_then(|it| it.get(1..))
205 .unwrap_or_else(|| "Self")
206 .to_string(),
201 ); 207 );
202 res.push(raw_param); 208 res.push(raw_param);
203 } 209 }
@@ -205,8 +211,8 @@ impl From<&'_ ast::FnDef> for FunctionSignature {
205 res.extend(param_list.params().map(|param| param.syntax().text().to_string())); 211 res.extend(param_list.params().map(|param| param.syntax().text().to_string()));
206 res_types.extend(param_list.params().map(|param| { 212 res_types.extend(param_list.params().map(|param| {
207 let param_text = param.syntax().text().to_string(); 213 let param_text = param.syntax().text().to_string();
208 match param_text.split(':').nth(1) { 214 match param_text.split(':').nth(1).and_then(|it| it.get(1..)) {
209 Some(it) => it[1..].to_string(), 215 Some(it) => it.to_string(),
210 None => param_text, 216 None => param_text,
211 } 217 }
212 })); 218 }));