/
resolve-block-map.ts
136 lines (127 loc) · 4.52 KB
/
resolve-block-map.ts
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import type { ParsedNode } from '../nodes/Node.js'
import { Pair } from '../nodes/Pair.js'
import { YAMLMap } from '../nodes/YAMLMap.js'
import type { BlockMap } from '../parse/cst.js'
import type { ComposeContext, ComposeNode } from './compose-node.js'
import type { ComposeErrorHandler } from './composer.js'
import { resolveProps } from './resolve-props.js'
import { containsNewline } from './util-contains-newline.js'
import { flowIndentCheck } from './util-flow-indent-check.js'
import { mapIncludes } from './util-map-includes.js'
const startColMsg = 'All mapping items must start at the same column'
export function resolveBlockMap(
{ composeNode, composeEmptyNode }: ComposeNode,
ctx: ComposeContext,
bm: BlockMap,
onError: ComposeErrorHandler
) {
const map = new YAMLMap<ParsedNode, ParsedNode>(ctx.schema)
if (ctx.atRoot) ctx.atRoot = false
let offset = bm.offset
let commentEnd: number | null = null
for (const collItem of bm.items) {
const { start, key, sep, value } = collItem
// key properties
const keyProps = resolveProps(start, {
indicator: 'explicit-key-ind',
next: key ?? sep?.[0],
offset,
onError,
startOnNewline: true
})
const implicitKey = !keyProps.found
if (implicitKey) {
if (key) {
if (key.type === 'block-seq')
onError(
offset,
'BLOCK_AS_IMPLICIT_KEY',
'A block sequence may not be used as an implicit map key'
)
else if ('indent' in key && key.indent !== bm.indent)
onError(offset, 'BAD_INDENT', startColMsg)
}
if (!keyProps.anchor && !keyProps.tag && !sep) {
commentEnd = keyProps.end
if (keyProps.comment) {
if (map.comment) map.comment += '\n' + keyProps.comment
else map.comment = keyProps.comment
}
continue
}
if (keyProps.hasNewlineAfterProp || containsNewline(key)) {
onError(
key ?? start[start.length - 1],
'MULTILINE_IMPLICIT_KEY',
'Implicit keys need to be on a single line'
)
}
} else if (keyProps.found?.indent !== bm.indent) {
onError(offset, 'BAD_INDENT', startColMsg)
}
// key value
const keyStart = keyProps.end
const keyNode = key
? composeNode(ctx, key, keyProps, onError)
: composeEmptyNode(ctx, keyStart, start, null, keyProps, onError)
if (ctx.schema.compat) flowIndentCheck(bm.indent, key, onError)
if (mapIncludes(ctx, map.items, keyNode))
onError(keyStart, 'DUPLICATE_KEY', 'Map keys must be unique')
// value properties
const valueProps = resolveProps(sep ?? [], {
indicator: 'map-value-ind',
next: value,
offset: keyNode.range[2],
onError,
startOnNewline: !key || key.type === 'block-scalar'
})
offset = valueProps.end
if (valueProps.found) {
if (implicitKey) {
if (value?.type === 'block-map' && !valueProps.hasNewline)
onError(
offset,
'BLOCK_AS_IMPLICIT_KEY',
'Nested mappings are not allowed in compact mappings'
)
if (
ctx.options.strict &&
keyProps.start < valueProps.found.offset - 1024
)
onError(
keyNode.range,
'KEY_OVER_1024_CHARS',
'The : indicator must be at most 1024 chars after the start of an implicit block mapping key'
)
}
// value value
const valueNode = value
? composeNode(ctx, value, valueProps, onError)
: composeEmptyNode(ctx, offset, sep, null, valueProps, onError)
if (ctx.schema.compat) flowIndentCheck(bm.indent, value, onError)
offset = valueNode.range[2]
const pair = new Pair(keyNode, valueNode)
if (ctx.options.keepSourceTokens) pair.srcToken = collItem
map.items.push(pair)
} else {
// key with no value
if (implicitKey)
onError(
keyNode.range,
'MISSING_CHAR',
'Implicit map keys need to be followed by map values'
)
if (valueProps.comment) {
if (keyNode.comment) keyNode.comment += '\n' + valueProps.comment
else keyNode.comment = valueProps.comment
}
const pair: Pair<ParsedNode, ParsedNode> = new Pair(keyNode)
if (ctx.options.keepSourceTokens) pair.srcToken = collItem
map.items.push(pair)
}
}
if (commentEnd && commentEnd < offset)
onError(commentEnd, 'IMPOSSIBLE', 'Map comment with trailing content')
map.range = [bm.offset, offset, commentEnd ?? offset]
return map as YAMLMap.Parsed
}