cdk8s
Version:
This is the core library of Cloud Development Kit (CDK) for Kubernetes (cdk8s). cdk8s apps synthesize into standard Kubernetes manifests which can be applied to any Kubernetes cluster.
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JavaScript
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var identity = require('../nodes/identity.js');
var Pair = require('../nodes/Pair.js');
var YAMLMap = require('../nodes/YAMLMap.js');
var YAMLSeq = require('../nodes/YAMLSeq.js');
var resolveEnd = require('./resolve-end.js');
var resolveProps = require('./resolve-props.js');
var utilContainsNewline = require('./util-contains-newline.js');
var utilMapIncludes = require('./util-map-includes.js');
const blockMsg = 'Block collections are not allowed within flow collections';
const isBlock = (token) => token && (token.type === 'block-map' || token.type === 'block-seq');
function resolveFlowCollection({ composeNode, composeEmptyNode }, ctx, fc, onError, tag) {
const isMap = fc.start.source === '{';
const fcName = isMap ? 'flow map' : 'flow sequence';
const NodeClass = (tag?.nodeClass ?? (isMap ? YAMLMap.YAMLMap : YAMLSeq.YAMLSeq));
const coll = new NodeClass(ctx.schema);
coll.flow = true;
const atRoot = ctx.atRoot;
if (atRoot)
ctx.atRoot = false;
if (ctx.atKey)
ctx.atKey = false;
let offset = fc.offset + fc.start.source.length;
for (let i = 0; i < fc.items.length; ++i) {
const collItem = fc.items[i];
const { start, key, sep, value } = collItem;
const props = resolveProps.resolveProps(start, {
flow: fcName,
indicator: 'explicit-key-ind',
next: key ?? sep?.[0],
offset,
onError,
parentIndent: fc.indent,
startOnNewline: false
});
if (!props.found) {
if (!props.anchor && !props.tag && !sep && !value) {
if (i === 0 && props.comma)
onError(props.comma, 'UNEXPECTED_TOKEN', `Unexpected , in ${fcName}`);
else if (i < fc.items.length - 1)
onError(props.start, 'UNEXPECTED_TOKEN', `Unexpected empty item in ${fcName}`);
if (props.comment) {
if (coll.comment)
coll.comment += '\n' + props.comment;
else
coll.comment = props.comment;
}
offset = props.end;
continue;
}
if (!isMap && ctx.options.strict && utilContainsNewline.containsNewline(key))
onError(key, // checked by containsNewline()
'MULTILINE_IMPLICIT_KEY', 'Implicit keys of flow sequence pairs need to be on a single line');
}
if (i === 0) {
if (props.comma)
onError(props.comma, 'UNEXPECTED_TOKEN', `Unexpected , in ${fcName}`);
}
else {
if (!props.comma)
onError(props.start, 'MISSING_CHAR', `Missing , between ${fcName} items`);
if (props.comment) {
let prevItemComment = '';
loop: for (const st of start) {
switch (st.type) {
case 'comma':
case 'space':
break;
case 'comment':
prevItemComment = st.source.substring(1);
break loop;
default:
break loop;
}
}
if (prevItemComment) {
let prev = coll.items[coll.items.length - 1];
if (identity.isPair(prev))
prev = prev.value ?? prev.key;
if (prev.comment)
prev.comment += '\n' + prevItemComment;
else
prev.comment = prevItemComment;
props.comment = props.comment.substring(prevItemComment.length + 1);
}
}
}
if (!isMap && !sep && !props.found) {
// item is a value in a seq
// → key & sep are empty, start does not include ? or :
const valueNode = value
? composeNode(ctx, value, props, onError)
: composeEmptyNode(ctx, props.end, sep, null, props, onError);
coll.items.push(valueNode);
offset = valueNode.range[2];
if (isBlock(value))
onError(valueNode.range, 'BLOCK_IN_FLOW', blockMsg);
}
else {
// item is a key+value pair
// key value
ctx.atKey = true;
const keyStart = props.end;
const keyNode = key
? composeNode(ctx, key, props, onError)
: composeEmptyNode(ctx, keyStart, start, null, props, onError);
if (isBlock(key))
onError(keyNode.range, 'BLOCK_IN_FLOW', blockMsg);
ctx.atKey = false;
// value properties
const valueProps = resolveProps.resolveProps(sep ?? [], {
flow: fcName,
indicator: 'map-value-ind',
next: value,
offset: keyNode.range[2],
onError,
parentIndent: fc.indent,
startOnNewline: false
});
if (valueProps.found) {
if (!isMap && !props.found && ctx.options.strict) {
if (sep)
for (const st of sep) {
if (st === valueProps.found)
break;
if (st.type === 'newline') {
onError(st, 'MULTILINE_IMPLICIT_KEY', 'Implicit keys of flow sequence pairs need to be on a single line');
break;
}
}
if (props.start < valueProps.found.offset - 1024)
onError(valueProps.found, 'KEY_OVER_1024_CHARS', 'The : indicator must be at most 1024 chars after the start of an implicit flow sequence key');
}
}
else if (value) {
if ('source' in value && value.source?.[0] === ':')
onError(value, 'MISSING_CHAR', `Missing space after : in ${fcName}`);
else
onError(valueProps.start, 'MISSING_CHAR', `Missing , or : between ${fcName} items`);
}
// value value
const valueNode = value
? composeNode(ctx, value, valueProps, onError)
: valueProps.found
? composeEmptyNode(ctx, valueProps.end, sep, null, valueProps, onError)
: null;
if (valueNode) {
if (isBlock(value))
onError(valueNode.range, 'BLOCK_IN_FLOW', blockMsg);
}
else if (valueProps.comment) {
if (keyNode.comment)
keyNode.comment += '\n' + valueProps.comment;
else
keyNode.comment = valueProps.comment;
}
const pair = new Pair.Pair(keyNode, valueNode);
if (ctx.options.keepSourceTokens)
pair.srcToken = collItem;
if (isMap) {
const map = coll;
if (utilMapIncludes.mapIncludes(ctx, map.items, keyNode))
onError(keyStart, 'DUPLICATE_KEY', 'Map keys must be unique');
map.items.push(pair);
}
else {
const map = new YAMLMap.YAMLMap(ctx.schema);
map.flow = true;
map.items.push(pair);
const endRange = (valueNode ?? keyNode).range;
map.range = [keyNode.range[0], endRange[1], endRange[2]];
coll.items.push(map);
}
offset = valueNode ? valueNode.range[2] : valueProps.end;
}
}
const expectedEnd = isMap ? '}' : ']';
const [ce, ...ee] = fc.end;
let cePos = offset;
if (ce?.source === expectedEnd)
cePos = ce.offset + ce.source.length;
else {
const name = fcName[0].toUpperCase() + fcName.substring(1);
const msg = atRoot
? `${name} must end with a ${expectedEnd}`
: `${name} in block collection must be sufficiently indented and end with a ${expectedEnd}`;
onError(offset, atRoot ? 'MISSING_CHAR' : 'BAD_INDENT', msg);
if (ce && ce.source.length !== 1)
ee.unshift(ce);
}
if (ee.length > 0) {
const end = resolveEnd.resolveEnd(ee, cePos, ctx.options.strict, onError);
if (end.comment) {
if (coll.comment)
coll.comment += '\n' + end.comment;
else
coll.comment = end.comment;
}
coll.range = [fc.offset, cePos, end.offset];
}
else {
coll.range = [fc.offset, cePos, cePos];
}
return coll;
}
exports.resolveFlowCollection = resolveFlowCollection;