Crate yaml_rt_core 

Core types for a YAML 1.2.2 round-trip parser.

This crate is intentionally dependency-free. It owns source storage, the lossless lexer and CST, semantic metadata, diagnostics, JSON Pointer operations, typed-overlay traits, editor APIs, and patch-based emission. The original source and CST remain authoritative so untouched YAML is emitted byte-for-byte.

Structs

Children

Iterator over a node’s children in source order.

Diagnostic

Structured user-facing diagnostic.

Edit

Pending source edit used by the patch-based emitter.

FragmentError

Failure to parse, validate, or render a YAML fragment.

JsonPointer

A parsed plain RFC 6901 JSON Pointer.

LineCol

One-based line and column location.

Node

Lossless syntax node produced by the CST parser.

NodeId

Identifier for a node stored inside a crate::YamlDoc.

PointerError

Structured JSON Pointer parse or resolution error.

ReferenceToken

One decoded RFC 6901 reference token.

ReservedDirective

Parsed reserved directive metadata.

ScalarResolveError

Failure to resolve a scalar according to the YAML core schema.

SemanticValueError

Failure while projecting YAML nodes into the JSON-compatible data model.

Source

Original YAML input plus line-start metadata.

Span

A byte span inside a Source.

TagDirective

Parsed %TAG directive metadata.

Token

Lexical token preserving its exact source span.

YamlDirective

Parsed %YAML directive metadata.

YamlDoc

A source-preserving YAML document.

YamlEditError

Failure while applying a pointer-addressed YAML edit.

YamlError

Error type for YAML parsing, semantic lookup, typed overlays, and emission.

YamlEvent

Semantic YAML event produced by the parser.

YamlEvents

On-demand iterator over semantic YAML events.

YamlFragment

A parsed YAML value document containing exactly one root node.

YamlNumber

An exact, finite YAML number normalized for semantic comparison.

Enums

CollectionStyle

YAML collection spelling.

DiagnosticKind

Diagnostic phase.

MappingEntryStyle

Formatting controls for inserting a block mapping entry.

NodeKind

Node kinds emitted by the CST parser.

NonFiniteFloat

A non-finite YAML float, which is outside the JSON-compatible data model.

PointerErrorKind

Classification of a JSON Pointer parse or resolution failure.

ResolvedScalar

YAML 1.2 core-schema interpretation of a scalar.

SemanticKind

Semantic interpretation attached to a lossless CST node.

TokenKind

Token kinds emitted by the lossless lexer.

YamlEventKind

Semantic YAML event kinds.

YamlScalarStyle

YAML scalar spelling.

Constants

TARGET_YAML_VERSION

YAML version targeted by this workspace.

Traits

FromYamlDoc

Converts a YAML document into a typed overlay.

ToYamlDoc

Applies a typed overlay back to a YAML document as minimal patches.

ToYamlFragment

Formats a typed value as a YAML fragment for parent-aware insertions.

YamlValue

Reads and writes individual YAML node values.

Functions

events_to_test_string

Renders YAML events in the YAML Test Suite test.event format.

lex

Lexes YAML source into lossless tokens.

parse_cst

Parses a source buffer into a lossless CST node arena.

resolve_scalar

Resolves a decoded scalar value using the YAML 1.2 core schema.

semantically_equal

Compares two YAML nodes using RFC 6902 JSON-value equality.

tokens_to_string

Reconstructs source text from token spans.

Type Aliases

ParseError

Alias for parse errors until richer phase-specific errors are introduced.