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90 lines
2.9 KiB
Rust
90 lines
2.9 KiB
Rust
//! Rustc Diagnostic JSON Output
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//!
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//! The following data types are copied from [rust-lang/rust](https://github.com/rust-lang/rust/blob/de78655bca47cac8e783dbb563e7e5c25c1fae40/src/libsyntax/json.rs)
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use serde::Deserialize;
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#[derive(Clone, Deserialize, Debug, Hash, Eq, PartialEq)]
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pub struct Diagnostic {
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/// The primary error message.
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pub message: String,
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pub code: Option<DiagnosticCode>,
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/// "error: internal compiler error", "error", "warning", "note", "help".
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level: String,
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pub spans: Vec<DiagnosticSpan>,
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/// Associated diagnostic messages.
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pub children: Vec<Diagnostic>,
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/// The message as rustc would render it. Currently this is only
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/// `Some` for "suggestions", but eventually it will include all
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/// snippets.
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pub rendered: Option<String>,
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}
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#[derive(Clone, Deserialize, Debug, Hash, Eq, PartialEq)]
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pub struct DiagnosticSpan {
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pub file_name: String,
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pub byte_start: u32,
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pub byte_end: u32,
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/// 1-based.
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pub line_start: usize,
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pub line_end: usize,
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/// 1-based, character offset.
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pub column_start: usize,
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pub column_end: usize,
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/// Is this a "primary" span -- meaning the point, or one of the points,
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/// where the error occurred?
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is_primary: bool,
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/// Source text from the start of line_start to the end of line_end.
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pub text: Vec<DiagnosticSpanLine>,
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/// Label that should be placed at this location (if any)
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label: Option<String>,
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/// If we are suggesting a replacement, this will contain text
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/// that should be sliced in atop this span. You may prefer to
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/// load the fully rendered version from the parent `Diagnostic`,
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/// however.
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pub suggested_replacement: Option<String>,
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pub suggestion_applicability: Option<Applicability>,
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/// Macro invocations that created the code at this span, if any.
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expansion: Option<Box<DiagnosticSpanMacroExpansion>>,
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}
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#[derive(Copy, Clone, Debug, PartialEq, Deserialize, Hash, Eq)]
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pub enum Applicability {
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MachineApplicable,
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HasPlaceholders,
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MaybeIncorrect,
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Unspecified,
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}
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#[derive(Clone, Deserialize, Debug, Eq, PartialEq, Hash)]
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pub struct DiagnosticSpanLine {
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pub text: String,
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/// 1-based, character offset in self.text.
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pub highlight_start: usize,
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pub highlight_end: usize,
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}
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#[derive(Clone, Deserialize, Debug, Eq, PartialEq, Hash)]
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struct DiagnosticSpanMacroExpansion {
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/// span where macro was applied to generate this code; note that
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/// this may itself derive from a macro (if
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/// `span.expansion.is_some()`)
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span: DiagnosticSpan,
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/// name of macro that was applied (e.g., "foo!" or "#[derive(Eq)]")
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macro_decl_name: String,
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/// span where macro was defined (if known)
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def_site_span: Option<DiagnosticSpan>,
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}
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#[derive(Clone, Deserialize, Debug, Eq, PartialEq, Hash)]
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pub struct DiagnosticCode {
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/// The code itself.
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pub code: String,
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/// An explanation for the code.
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explanation: Option<String>,
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}
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