示例

Unmarshal YAML documents into yaml.Node AST where top-level mappings are wrapped in a DocumentNode and mapping entries are stored as a flat slice of alternating key and value nodes.

sha256:5a3c517c14c2b02913bd1dddf4ceb354fa20a12daf9bd8874291fdb094b5e78b

案例

目标

Unmarshal YAML documents into yaml.Node AST where top-level mappings are wrapped in a DocumentNode and mapping entries are stored as a flat slice of alternating key and value nodes. HOW

包

gopkg.in/yaml.v3 v3.0.1

环境

go

创建时间

2026-08-17T20:57:24Z

常见的想当然

Unmarshaling a YAML mapping directly into *yaml.Node produces a MappingNode whose Content slice holds child values.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• yaml.Unmarshal into *yaml.Node produces a root DocumentNode with Kind 1 whose Content slice wraps the top-level MappingNode (Kind 4) at index 0 rather than returning a MappingNode directly.
• MappingNode.Content is a flat slice of 2*N nodes where even indices hold key scalar nodes and odd indices hold value nodes.
• HeadComment annotations attach to key nodes while inline LineComment annotations attach to value nodes.
• yaml.Node.Decode decodes AST subtrees directly into Go struct types.
• In-place AST scalar modifications preserve HeadComment and LineComment annotations across yaml.Encoder serialization.
• Types implementing UnmarshalYAML(value *yaml.Node) receive AST position metadata (Line and Column) and can decode underlying values via value.Decode.

文件

• NOTES.md
• csx.json
• go.mod
• go.sum
• yaml_test.go

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9