1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
import lodash from "@11ty/lodash-custom";
import debugUtil from "debug";
import ComputedDataQueue from "./ComputedDataQueue.js";
import ComputedDataTemplateString from "./ComputedDataTemplateString.js";
import ComputedDataProxy from "./ComputedDataProxy.js";
const { set: lodashSet, get: lodashGet } = lodash;
const debug = debugUtil("Eleventy:ComputedData");
class ComputedData {
constructor(config) {
this.computed = {};
this.symbolParseFunctions = {};
this.templateStringKeyLookup = {};
this.computedKeys = new Set();
this.declaredDependencies = {};
this.queue = new ComputedDataQueue();
this.config = config;
}
add(key, renderFn, declaredDependencies = [], symbolParseFn, templateInstance) {
this.computedKeys.add(key);
this.declaredDependencies[key] = declaredDependencies;
// bind config filters/JS functions
if (typeof renderFn === "function") {
let fns = {};
// TODO bug? no access to non-universal config things?
if (this.config) {
fns = {
...this.config.javascriptFunctions,
};
}
fns.tmpl = templateInstance;
renderFn = renderFn.bind(fns);
}
lodashSet(this.computed, key, renderFn);
if (symbolParseFn) {
lodashSet(this.symbolParseFunctions, key, symbolParseFn);
}
}
addTemplateString(key, renderFn, declaredDependencies = [], symbolParseFn, templateInstance) {
this.add(key, renderFn, declaredDependencies, symbolParseFn, templateInstance);
this.templateStringKeyLookup[key] = true;
}
async resolveVarOrder(data) {
let proxyByTemplateString = new ComputedDataTemplateString(this.computedKeys);
let proxyByProxy = new ComputedDataProxy(this.computedKeys);
for (let key of this.computedKeys) {
let computed = lodashGet(this.computed, key);
if (typeof computed !== "function") {
// add nodes for non functions (primitives like booleans, etc)
// This will not handle template strings, as they are normalized to functions
this.queue.addNode(key);
} else {
this.queue.uses(key, this.declaredDependencies[key]);
let symbolParseFn = lodashGet(this.symbolParseFunctions, key);
let varsUsed = [];
if (symbolParseFn) {
// use the parseForSymbols function in the TemplateEngine
varsUsed = symbolParseFn();
} else if (symbolParseFn !== false) {
// skip resolution is this is false (just use declaredDependencies)
let isTemplateString = !!this.templateStringKeyLookup[key];
let proxy = isTemplateString ? proxyByTemplateString : proxyByProxy;
varsUsed = await proxy.findVarsUsed(computed, data);
}
debug("%o accesses %o variables", key, varsUsed);
let filteredVarsUsed = varsUsed.filter((varUsed) => {
return (
(varUsed !== key && this.computedKeys.has(varUsed)) ||
varUsed.startsWith("collections.")
);
});
this.queue.uses(key, filteredVarsUsed);
}
}
}
async _setupDataEntry(data, order) {
debug("Computed data order of execution: %o", order);
for (let key of order) {
let computed = lodashGet(this.computed, key);
if (typeof computed === "function") {
let ret = await computed(data);
lodashSet(data, key, ret);
} else if (computed !== undefined) {
lodashSet(data, key, computed);
}
}
}
async setupData(data, orderFilter) {
await this.resolveVarOrder(data);
await this.processRemainingData(data, orderFilter);
}
async processRemainingData(data, orderFilter) {
// process all variables
let order = this.queue.getOrder();
if (orderFilter && typeof orderFilter === "function") {
order = order.filter(orderFilter.bind(this.queue));
}
await this._setupDataEntry(data, order);
this.queue.markComputed(order);
}
}
export default ComputedData;
|
