feat(swc_common): Expose non-tty EmitterWriter (#1240)

swc_bundler:
 - Expose non-tty EmitterWriter

common/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 license = "Apache-2.0/MIT"
 name = "swc_common"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.10.5"
+version = "0.10.6"
 
 [features]
 concurrent = ["parking_lot"]

common/src/errors.rs

@@ -7,13 +7,12 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
-#[cfg(feature = "tty-emitter")]
-pub use self::emitter::EmitterWriter;
+
 use self::Level::*;
 pub use self::{
     diagnostic::{Diagnostic, DiagnosticId, DiagnosticStyledString, SubDiagnostic},
     diagnostic_builder::DiagnosticBuilder,
-    emitter::{ColorConfig, Emitter},
+    emitter::{ColorConfig, Emitter, EmitterWriter},
 };
 #[cfg(feature = "tty-emitter")]
 use crate::sync::Lrc;

common/src/errors/emitter.rs

@@ -8,40 +8,29 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[cfg(feature = "tty-emitter")]
 use self::Destination::*;
-#[cfg(feature = "tty-emitter")]
-use super::snippet::{Annotation, Line};
-use super::DiagnosticBuilder;
-#[cfg(feature = "tty-emitter")]
 use super::{
-    snippet::{AnnotationType, MultilineAnnotation, Style, StyledString},
+    snippet::{Annotation, AnnotationType, Line, MultilineAnnotation, Style, StyledString},
     styled_buffer::StyledBuffer,
-    CodeSuggestion, DiagnosticId, Level, SourceMapperDyn, SubDiagnostic,
+    CodeSuggestion, DiagnosticBuilder, DiagnosticId, Level, SourceMapperDyn, SubDiagnostic,
+};
+use crate::{
+    sync::Lrc,
+    syntax_pos::{MultiSpan, SourceFile, Span},
 };
 #[cfg(feature = "tty-emitter")]
-use crate::sync::Lrc;
-#[cfg(feature = "tty-emitter")]
-use crate::syntax_pos::SourceFile;
-#[cfg(feature = "tty-emitter")]
-use crate::syntax_pos::{MultiSpan, Span};
-#[cfg(feature = "tty-emitter")]
 use atty;
-#[cfg(feature = "tty-emitter")]
-use std::borrow::Cow;
-#[cfg(feature = "tty-emitter")]
-use std::cmp::{min, Reverse};
-#[cfg(feature = "tty-emitter")]
-use std::collections::HashMap;
-use std::io::{self, prelude::*};
-#[cfg(feature = "tty-emitter")]
-use std::ops::Range;
+use std::{
+    borrow::Cow,
+    cmp::{min, Reverse},
+    collections::HashMap,
+    io::{self, prelude::*},
+    ops::Range,
+};
 #[cfg(feature = "tty-emitter")]
 use termcolor::{Buffer, BufferWriter, Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
-#[cfg(feature = "tty-emitter")]
 use unicode_width;
 
-#[cfg(feature = "tty-emitter")]
 const ANONYMIZED_LINE_NUM: &str = "LL";
 
 /// Emitter trait for emitting errors.
@@ -55,7 +44,6 @@ pub trait Emitter: crate::sync::Send {
     }
 }
 
-#[cfg(feature = "tty-emitter")]
 impl Emitter for EmitterWriter {
     fn emit(&mut self, db: &DiagnosticBuilder<'_>) {
         let mut primary_span = db.span.clone();
@@ -144,7 +132,6 @@ impl ColorConfig {
     }
 }
 
-#[cfg(feature = "tty-emitter")]
 pub struct EmitterWriter {
     dst: Destination,
     sm: Option<Lrc<SourceMapperDyn>>,
@@ -153,7 +140,6 @@ pub struct EmitterWriter {
     ui_testing: bool,
 }
 
-#[cfg(feature = "tty-emitter")]
 struct FileWithAnnotatedLines {
     file: Lrc<SourceFile>,
     lines: Vec<Line>,
@@ -177,7 +163,9 @@ impl EmitterWriter {
             ui_testing: false,
         }
     }
+}
 
+impl EmitterWriter {
     pub fn new(
         dst: Box<dyn Write + Send>,
         source_map: Option<Lrc<SourceMapperDyn>>,
@@ -1395,17 +1383,14 @@ impl EmitterWriter {
     }
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_col_separator(buffer: &mut StyledBuffer, line: usize, col: usize) {
     buffer.puts(line, col, "| ", Style::LineNumber);
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_col_separator_no_space(buffer: &mut StyledBuffer, line: usize, col: usize) {
     draw_col_separator_no_space_with_style(buffer, line, col, Style::LineNumber);
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_col_separator_no_space_with_style(
     buffer: &mut StyledBuffer,
     line: usize,
@@ -1415,7 +1400,6 @@ fn draw_col_separator_no_space_with_style(
     buffer.putc(line, col, '|', style);
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_range(
     buffer: &mut StyledBuffer,
     symbol: char,
@@ -1429,12 +1413,10 @@ fn draw_range(
     }
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_note_separator(buffer: &mut StyledBuffer, line: usize, col: usize) {
     buffer.puts(line, col, "= ", Style::LineNumber);
 }
 
-#[cfg(feature = "tty-emitter")]
 fn draw_multiline_line(
     buffer: &mut StyledBuffer,
     line: usize,
@@ -1445,7 +1427,6 @@ fn draw_multiline_line(
     buffer.putc(line, offset + depth - 1, '|', style);
 }
 
-#[cfg(feature = "tty-emitter")]
 fn num_overlap(
     a_start: usize,
     a_end: usize,
@@ -1459,7 +1440,7 @@ fn num_overlap(
     }
     contains(b_start..b_end + extra, a_start) || contains(a_start..a_end + extra, b_start)
 }
-#[cfg(feature = "tty-emitter")]
+
 fn overlaps(a1: &Annotation, a2: &Annotation, padding: usize) -> bool {
     num_overlap(
         a1.start_col,
@@ -1470,7 +1451,6 @@ fn overlaps(a1: &Annotation, a2: &Annotation, padding: usize) -> bool {
     )
 }
 
-#[cfg(feature = "tty-emitter")]
 fn emit_to_destination(
     rendered_buffer: &[Vec<StyledString>],
     lvl: Level,
@@ -1498,6 +1478,7 @@ fn emit_to_destination(
     let _buffer_lock = lock::acquire_global_lock("rustc_errors");
     for (pos, line) in rendered_buffer.iter().enumerate() {
         for part in line {
+            #[cfg(feature = "tty-emitter")]
             dst.apply_style(lvl, part.style)?;
             write!(dst, "{}", part.text)?;
             dst.reset()?;
@@ -1543,7 +1524,6 @@ impl Destination {
         }
     }
 
-    #[cfg(feature = "tty-emitter")]
     fn writable(&mut self) -> WritableDst<'_> {
         match *self {
             #[cfg(feature = "tty-emitter")]
@@ -1607,16 +1587,19 @@ impl<'a> WritableDst<'a> {
     #[cfg(feature = "tty-emitter")]
     fn set_color(&mut self, color: &ColorSpec) -> io::Result<()> {
         match *self {
+            #[cfg(feature = "tty-emitter")]
             WritableDst::Terminal(ref mut t) => t.set_color(color),
+            #[cfg(feature = "tty-emitter")]
             WritableDst::Buffered(_, ref mut t) => t.set_color(color),
             WritableDst::Raw(_) => Ok(()),
         }
     }
 
-    #[cfg(feature = "tty-emitter")]
     fn reset(&mut self) -> io::Result<()> {
         match *self {
+            #[cfg(feature = "tty-emitter")]
             WritableDst::Terminal(ref mut t) => t.reset(),
+            #[cfg(feature = "tty-emitter")]
             WritableDst::Buffered(_, ref mut t) => t.reset(),
             WritableDst::Raw(_) => Ok(()),
         }

common/src/errors/lock.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![cfg(feature = "tty-emitter")]
-
 //! Bindings to acquire a global named lock.
 //!
 //! This is intended to be used to synchronize multiple compiler processes to

common/src/errors/snippet.rs

@@ -12,14 +12,12 @@
 
 use super::Level;
 
-#[cfg(feature = "tty-emitter")]
 #[derive(Clone, Debug, PartialOrd, Ord, PartialEq, Eq)]
 pub struct Line {
     pub line_index: usize,
     pub annotations: Vec<Annotation>,
 }
 
-#[cfg(feature = "tty-emitter")]
 #[derive(Clone, Debug, PartialOrd, Ord, PartialEq, Eq)]
 pub struct MultilineAnnotation {
     pub depth: usize,
@@ -31,7 +29,6 @@ pub struct MultilineAnnotation {
     pub label: Option<String>,
 }
 
-#[cfg(feature = "tty-emitter")]
 impl MultilineAnnotation {
     pub fn increase_depth(&mut self) {
         self.depth += 1;
@@ -68,7 +65,6 @@ impl MultilineAnnotation {
     }
 }
 
-#[cfg(feature = "tty-emitter")]
 #[derive(Clone, Debug, PartialOrd, Ord, PartialEq, Eq)]
 pub enum AnnotationType {
     /// Annotation under a single line of code
@@ -98,7 +94,6 @@ pub enum AnnotationType {
     MultilineLine(usize),
 }
 
-#[cfg(feature = "tty-emitter")]
 #[derive(Clone, Debug, PartialOrd, Ord, PartialEq, Eq)]
 pub struct Annotation {
     /// Start column, 0-based indexing -- counting *characters*, not
@@ -121,7 +116,6 @@ pub struct Annotation {
     pub annotation_type: AnnotationType,
 }
 
-#[cfg(feature = "tty-emitter")]
 impl Annotation {
     /// Whether this annotation is a vertical line placeholder.
     pub fn is_line(&self) -> bool {

common/src/errors/styled_buffer.rs

@@ -10,8 +10,6 @@
 
 // Code for creating styled buffers
 
-#![cfg(feature = "tty-emitter")]
-
 use super::snippet::{Style, StyledString};
 
 #[derive(Debug)]