rust/crates/ra_ide/src/source_change.rs
2019-11-27 21:35:06 +03:00

120 lines
3.8 KiB
Rust

//! This modules defines type to represent changes to the source code, that flow
//! from the server to the client.
//!
//! It can be viewed as a dual for `AnalysisChange`.
use ra_db::RelativePathBuf;
use ra_text_edit::TextEdit;
use crate::{FileId, FilePosition, SourceRootId, TextUnit};
#[derive(Debug)]
pub struct SourceChange {
pub label: String,
pub source_file_edits: Vec<SourceFileEdit>,
pub file_system_edits: Vec<FileSystemEdit>,
pub cursor_position: Option<FilePosition>,
}
impl SourceChange {
/// Creates a new SourceChange with the given label
/// from the edits.
pub(crate) fn from_edits<L: Into<String>>(
label: L,
source_file_edits: Vec<SourceFileEdit>,
file_system_edits: Vec<FileSystemEdit>,
) -> Self {
SourceChange {
label: label.into(),
source_file_edits,
file_system_edits,
cursor_position: None,
}
}
/// Creates a new SourceChange with the given label,
/// containing only the given `SourceFileEdits`.
pub(crate) fn source_file_edits<L: Into<String>>(label: L, edits: Vec<SourceFileEdit>) -> Self {
SourceChange {
label: label.into(),
source_file_edits: edits,
file_system_edits: vec![],
cursor_position: None,
}
}
/// Creates a new SourceChange with the given label,
/// containing only the given `FileSystemEdits`.
pub(crate) fn file_system_edits<L: Into<String>>(label: L, edits: Vec<FileSystemEdit>) -> Self {
SourceChange {
label: label.into(),
source_file_edits: vec![],
file_system_edits: edits,
cursor_position: None,
}
}
/// Creates a new SourceChange with the given label,
/// containing only a single `SourceFileEdit`.
pub(crate) fn source_file_edit<L: Into<String>>(label: L, edit: SourceFileEdit) -> Self {
SourceChange::source_file_edits(label, vec![edit])
}
/// Creates a new SourceChange with the given label
/// from the given `FileId` and `TextEdit`
pub(crate) fn source_file_edit_from<L: Into<String>>(
label: L,
file_id: FileId,
edit: TextEdit,
) -> Self {
SourceChange::source_file_edit(label, SourceFileEdit { file_id, edit })
}
/// Creates a new SourceChange with the given label
/// from the given `FileId` and `TextEdit`
pub(crate) fn file_system_edit<L: Into<String>>(label: L, edit: FileSystemEdit) -> Self {
SourceChange::file_system_edits(label, vec![edit])
}
/// Sets the cursor position to the given `FilePosition`
pub(crate) fn with_cursor(mut self, cursor_position: FilePosition) -> Self {
self.cursor_position = Some(cursor_position);
self
}
/// Sets the cursor position to the given `FilePosition`
pub(crate) fn with_cursor_opt(mut self, cursor_position: Option<FilePosition>) -> Self {
self.cursor_position = cursor_position;
self
}
}
#[derive(Debug)]
pub struct SourceFileEdit {
pub file_id: FileId,
pub edit: TextEdit,
}
#[derive(Debug)]
pub enum FileSystemEdit {
CreateFile { source_root: SourceRootId, path: RelativePathBuf },
MoveFile { src: FileId, dst_source_root: SourceRootId, dst_path: RelativePathBuf },
}
pub(crate) struct SingleFileChange {
pub label: String,
pub edit: TextEdit,
pub cursor_position: Option<TextUnit>,
}
impl SingleFileChange {
pub(crate) fn into_source_change(self, file_id: FileId) -> SourceChange {
SourceChange {
label: self.label,
source_file_edits: vec![SourceFileEdit { file_id, edit: self.edit }],
file_system_edits: Vec::new(),
cursor_position: self.cursor_position.map(|offset| FilePosition { file_id, offset }),
}
}
}