forked from Fediversity/Fediversity
200 lines
8.3 KiB
JavaScript
200 lines
8.3 KiB
JavaScript
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import { isPair } from '../nodes/identity.js';
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import { Pair } from '../nodes/Pair.js';
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import { YAMLMap } from '../nodes/YAMLMap.js';
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import { YAMLSeq } from '../nodes/YAMLSeq.js';
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import { resolveEnd } from './resolve-end.js';
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import { resolveProps } from './resolve-props.js';
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import { containsNewline } from './util-contains-newline.js';
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import { mapIncludes } from './util-map-includes.js';
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const blockMsg = 'Block collections are not allowed within flow collections';
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const isBlock = (token) => token && (token.type === 'block-map' || token.type === 'block-seq');
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function resolveFlowCollection({ composeNode, composeEmptyNode }, ctx, fc, onError, tag) {
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const isMap = fc.start.source === '{';
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const fcName = isMap ? 'flow map' : 'flow sequence';
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const NodeClass = (tag?.nodeClass ?? (isMap ? YAMLMap : YAMLSeq));
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const coll = new NodeClass(ctx.schema);
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coll.flow = true;
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const atRoot = ctx.atRoot;
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if (atRoot)
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ctx.atRoot = false;
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let offset = fc.offset + fc.start.source.length;
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for (let i = 0; i < fc.items.length; ++i) {
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const collItem = fc.items[i];
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const { start, key, sep, value } = collItem;
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const props = resolveProps(start, {
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flow: fcName,
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indicator: 'explicit-key-ind',
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next: key ?? sep?.[0],
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offset,
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onError,
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startOnNewline: false
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});
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if (!props.found) {
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if (!props.anchor && !props.tag && !sep && !value) {
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if (i === 0 && props.comma)
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onError(props.comma, 'UNEXPECTED_TOKEN', `Unexpected , in ${fcName}`);
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else if (i < fc.items.length - 1)
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onError(props.start, 'UNEXPECTED_TOKEN', `Unexpected empty item in ${fcName}`);
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if (props.comment) {
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if (coll.comment)
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coll.comment += '\n' + props.comment;
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else
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coll.comment = props.comment;
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}
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offset = props.end;
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continue;
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}
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if (!isMap && ctx.options.strict && containsNewline(key))
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onError(key, // checked by containsNewline()
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'MULTILINE_IMPLICIT_KEY', 'Implicit keys of flow sequence pairs need to be on a single line');
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}
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if (i === 0) {
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if (props.comma)
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onError(props.comma, 'UNEXPECTED_TOKEN', `Unexpected , in ${fcName}`);
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}
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else {
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if (!props.comma)
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onError(props.start, 'MISSING_CHAR', `Missing , between ${fcName} items`);
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if (props.comment) {
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let prevItemComment = '';
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loop: for (const st of start) {
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switch (st.type) {
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case 'comma':
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case 'space':
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break;
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case 'comment':
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prevItemComment = st.source.substring(1);
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break loop;
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default:
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break loop;
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}
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}
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if (prevItemComment) {
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let prev = coll.items[coll.items.length - 1];
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if (isPair(prev))
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prev = prev.value ?? prev.key;
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if (prev.comment)
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prev.comment += '\n' + prevItemComment;
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else
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prev.comment = prevItemComment;
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props.comment = props.comment.substring(prevItemComment.length + 1);
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}
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}
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}
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if (!isMap && !sep && !props.found) {
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// item is a value in a seq
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// → key & sep are empty, start does not include ? or :
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const valueNode = value
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? composeNode(ctx, value, props, onError)
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: composeEmptyNode(ctx, props.end, sep, null, props, onError);
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coll.items.push(valueNode);
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offset = valueNode.range[2];
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if (isBlock(value))
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onError(valueNode.range, 'BLOCK_IN_FLOW', blockMsg);
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}
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else {
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// item is a key+value pair
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// key value
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const keyStart = props.end;
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const keyNode = key
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? composeNode(ctx, key, props, onError)
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: composeEmptyNode(ctx, keyStart, start, null, props, onError);
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if (isBlock(key))
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onError(keyNode.range, 'BLOCK_IN_FLOW', blockMsg);
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// value properties
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const valueProps = resolveProps(sep ?? [], {
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flow: fcName,
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indicator: 'map-value-ind',
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next: value,
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offset: keyNode.range[2],
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onError,
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startOnNewline: false
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});
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if (valueProps.found) {
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if (!isMap && !props.found && ctx.options.strict) {
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if (sep)
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for (const st of sep) {
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if (st === valueProps.found)
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break;
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if (st.type === 'newline') {
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onError(st, 'MULTILINE_IMPLICIT_KEY', 'Implicit keys of flow sequence pairs need to be on a single line');
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break;
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}
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}
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if (props.start < valueProps.found.offset - 1024)
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onError(valueProps.found, 'KEY_OVER_1024_CHARS', 'The : indicator must be at most 1024 chars after the start of an implicit flow sequence key');
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}
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}
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else if (value) {
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if ('source' in value && value.source && value.source[0] === ':')
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onError(value, 'MISSING_CHAR', `Missing space after : in ${fcName}`);
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else
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onError(valueProps.start, 'MISSING_CHAR', `Missing , or : between ${fcName} items`);
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}
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// value value
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const valueNode = value
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? composeNode(ctx, value, valueProps, onError)
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: valueProps.found
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? composeEmptyNode(ctx, valueProps.end, sep, null, valueProps, onError)
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: null;
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if (valueNode) {
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if (isBlock(value))
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onError(valueNode.range, 'BLOCK_IN_FLOW', blockMsg);
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}
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else if (valueProps.comment) {
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if (keyNode.comment)
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keyNode.comment += '\n' + valueProps.comment;
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else
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keyNode.comment = valueProps.comment;
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}
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const pair = new Pair(keyNode, valueNode);
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if (ctx.options.keepSourceTokens)
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pair.srcToken = collItem;
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if (isMap) {
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const map = coll;
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if (mapIncludes(ctx, map.items, keyNode))
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onError(keyStart, 'DUPLICATE_KEY', 'Map keys must be unique');
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map.items.push(pair);
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}
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else {
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const map = new YAMLMap(ctx.schema);
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map.flow = true;
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map.items.push(pair);
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coll.items.push(map);
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}
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offset = valueNode ? valueNode.range[2] : valueProps.end;
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}
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}
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const expectedEnd = isMap ? '}' : ']';
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const [ce, ...ee] = fc.end;
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let cePos = offset;
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if (ce && ce.source === expectedEnd)
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cePos = ce.offset + ce.source.length;
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else {
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const name = fcName[0].toUpperCase() + fcName.substring(1);
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const msg = atRoot
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? `${name} must end with a ${expectedEnd}`
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: `${name} in block collection must be sufficiently indented and end with a ${expectedEnd}`;
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onError(offset, atRoot ? 'MISSING_CHAR' : 'BAD_INDENT', msg);
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if (ce && ce.source.length !== 1)
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ee.unshift(ce);
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}
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if (ee.length > 0) {
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const end = resolveEnd(ee, cePos, ctx.options.strict, onError);
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if (end.comment) {
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if (coll.comment)
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coll.comment += '\n' + end.comment;
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else
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coll.comment = end.comment;
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}
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coll.range = [fc.offset, cePos, end.offset];
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}
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else {
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coll.range = [fc.offset, cePos, cePos];
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}
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return coll;
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}
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export { resolveFlowCollection };
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