Reduce the repetition in json error output

diff --git a/src/libsyntax/json.rs b/src/libsyntax/json.rs
index db49ab1034358787325725168ad91a0524fdc12f..b8151819bffed683f4589ea1798e9170b20b2790 100644 (file)
--- a/src/libsyntax/json.rs
+++ b/src/libsyntax/json.rs
@@ -153,17 +153,15 @@ impl Diagnostic {
     fn from_diagnostic_builder(db: &DiagnosticBuilder,
                                je: &JsonEmitter)
                                -> Diagnostic {
-        let sugg = db.suggestions.iter().flat_map(|sugg| {
-            je.render(sugg).into_iter().map(move |rendered| {
-                Diagnostic {
-                    message: sugg.msg.clone(),
-                    code: None,
-                    level: "help",
-                    spans: DiagnosticSpan::from_suggestion(sugg, je),
-                    children: vec![],
-                    rendered: Some(rendered),
-                }
-            })
+        let sugg = db.suggestions.iter().map(|sugg| {
+            Diagnostic {
+                message: sugg.msg.clone(),
+                code: None,
+                level: "help",
+                spans: DiagnosticSpan::from_suggestion(sugg, je),
+                children: vec![],
+                rendered: None,
+            }
         });
         Diagnostic {
             message: db.message(),
@@ -356,9 +354,3 @@ fn map_opt_string(s: Option<String>, je: &JsonEmitter) -> Option<DiagnosticCode>
         })
     }
 }
-
-impl JsonEmitter {
-    fn render(&self, suggestion: &CodeSuggestion) -> Vec<String> {
-        suggestion.splice_lines(&*self.cm).iter().map(|line| line.0.to_owned()).collect()
-    }
-}

diff --git a/src/test/ui/lint/unused_parens_json_suggestion.stderr b/src/test/ui/lint/unused_parens_json_suggestion.stderr
index 4b4dd92855da00e0454ba83a83a2a2cc82f2657a..701334d889045d6951500e08f12117c7feeb3908 100644 (file)
--- a/src/test/ui/lint/unused_parens_json_suggestion.stderr
+++ b/src/test/ui/lint/unused_parens_json_suggestion.stderr
@@ -1 +1 @@
-{"message":"unnecessary parentheses around assigned value","code":null,"level":"warning","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":976,"byte_end":989,"line_start":22,"line_end":22,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":null,"expansion":null}],"children":[{"message":"#[warn(unused_parens)] on by default","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":976,"byte_end":989,"line_start":22,"line_end":22,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":"1 / (2 + 3)","expansion":null}],"children":[],"rendered":"    let _a = 1 / (2 + 3);"}],"rendered":null}
+{"message":"unnecessary parentheses around assigned value","code":null,"level":"warning","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":976,"byte_end":989,"line_start":22,"line_end":22,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":null,"expansion":null}],"children":[{"message":"#[warn(unused_parens)] on by default","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":976,"byte_end":989,"line_start":22,"line_end":22,"column_start":14,"column_end":27,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":27}],"label":null,"suggested_replacement":"1 / (2 + 3)","expansion":null}],"children":[],"rendered":null}],"rendered":null}

diff --git a/src/test/ui/lint/use_suggestion_json.stderr b/src/test/ui/lint/use_suggestion_json.stderr
index 6dd82ad1eb49aa4cb009fcff678c03604fc696c3..2ebe212b93ddb7f0a9db59e5c5103587af86d9a2 100644 (file)
--- a/src/test/ui/lint/use_suggestion_json.stderr
+++ b/src/test/ui/lint/use_suggestion_json.stderr
@@ -1,2 +1,2 @@
-{"message":"cannot find type `Iter` in this scope","code":{"code":"E0412","explanation":"/nThe type name used is not in scope./n/nErroneous code examples:/n/n```compile_fail,E0412/nimpl Something {} // error: type name `Something` is not in scope/n/n// or:/n/ntrait Foo {/n    fn bar(N); // error: type name `N` is not in scope/n}/n/n// or:/n/nfn foo(x: T) {} // type name `T` is not in scope/n```/n/nTo fix this error, please verify you didn't misspell the type name, you did/ndeclare it or imported it into the scope. Examples:/n/n```/nstruct Something;/n/nimpl Something {} // ok!/n/n// or:/n/ntrait Foo {/n    type N;/n/n    fn bar(_: Self::N); // ok!/n}/n/n// or:/n/nfn foo<T>(x: T) {} // ok!/n```/n/nAnother case that causes this error is when a type is imported into a parent/nmodule. To fix this, you can follow the suggestion and use File directly or/n`use super::File;` which will import the types from the parent namespace. An/nexample that causes this error is below:/n/n```compile_fail,E0412/nuse std::fs::File;/n/nmod foo {/n    fn some_function(f: File) {}/n}/n```/n/n```/nuse std::fs::File;/n/nmod foo {/n    // either/n    use super::File;/n    // or/n    // use std::fs::File;/n    fn foo(f: File) {}/n}/n# fn main() {} // don't insert it for us; that'll break imports/n```/n"},"level":"error","spans":[{"file_name":"$DIR/use_suggestion_json.rs","byte_start":862,"byte_end":866,"line_start":20,"line_end":20,"column_start":12,"column_end":16,"is_primary":true,"text":[{"text":"    let x: Iter;","highlight_start":12,"highlight_end":16}],"label":"not found in this scope","suggested_replacement":null,"expansion":null}],"children":[{"message":"possible candidates are found in other modules, you can import them into scope","code":null,"level":"help","spans":[{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::binary_heap::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::btree_map::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use 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An/nexample that causes this error is below:/n/n```compile_fail,E0412/nuse std::fs::File;/n/nmod foo {/n    fn some_function(f: File) {}/n}/n```/n/n```/nuse std::fs::File;/n/nmod foo {/n    // either/n    use super::File;/n    // or/n    // use std::fs::File;/n    fn foo(f: File) {}/n}/n# fn main() {} // don't insert it for us; that'll break imports/n```/n"},"level":"error","spans":[{"file_name":"$DIR/use_suggestion_json.rs","byte_start":862,"byte_end":866,"line_start":20,"line_end":20,"column_start":12,"column_end":16,"is_primary":true,"text":[{"text":"    let x: Iter;","highlight_start":12,"highlight_end":16}],"label":"not found in this scope","suggested_replacement":null,"expansion":null}],"children":[{"message":"possible candidates are found in other modules, you can import them into scope","code":null,"level":"help","spans":[{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::binary_heap::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::btree_map::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::btree_set::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::hash_map::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::hash_set::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::linked_list::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::collections::vec_deque::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::option::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::path::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::result::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::slice::Iter;/n/n","expansion":null},{"file_name":"$DIR/use_suggestion_json.rs","byte_start":839,"byte_end":839,"line_start":19,"line_end":19,"column_start":1,"column_end":1,"is_primary":true,"text":[{"text":"fn main() {","highlight_start":1,"highlight_end":1}],"label":null,"suggested_replacement":"use std::sync::mpsc::Iter;/n/n","expansion":null}],"children":[],"rendered":null}],"rendered":null}
 {"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":null}