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Use context.split for JavaScript completions for better performance and less hair raising, gut wrenching horror.

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This commit is contained in:
Kris Maglione
2011-02-11 10:22:45 -05:00
parent 8ad4e5b634
commit e97cb27f4c
1 changed files with 84 additions and 90 deletions
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146
common/modules/javascript.jsm
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@@ -319,52 +319,46 @@ var JavaScript = Module("javascript", {
return [dot + 1 + space.length, obj, key];
},
_fill: function (context, args) {
context.title = [args.name];
context.anchored = args.anchored;
context.filter = args.filter;
context.itemCache = context.parent.itemCache;
context.key = args.name + args.last;
if (args.last == null)
// We're not looking for a quoted string, so filter out anything that's not a valid identifier
context.filters.push(function (item) /^[a-zA-Z_$][\w$]*$/.test(item.text));
else {
context.quote = [args.last, function (text) util.escapeString(text, ""), args.last];
if (args.prefix)
context.filters.push(function (item) item.item.indexOf(args.prefix) === 0);
}
args.completer.call(this, context, args);
},
_complete: function (objects, key, compl, string, last) {
const self = this;
if (!this.window.Object.getOwnPropertyNames && !services.debugger.isOn && !this.context.message)
this.context.message = "For better completion data, please enable the JavaScript debugger (:set jsdebugger)";
let orig = compl;
if (!compl) {
compl = function (context, args, recurse) {
let base = this.context.fork("js", this._top.offset);
base.forceAnchored = true;
base.filter = last == null ? key : string;
let prefix = last != null ? key : "";
context.process[1] = function highlight(item, v)
if (last == null) // We're not looking for a quoted string, so filter out anything that's not a valid identifier
base.filters.push(function (item) /^[a-zA-Z_$][\w$]*$/.test(item.text));
else {
base.quote = [last, function (text) util.escapeString(text, ""), last];
if (prefix)
base.filters.push(function (item) item.item.indexOf(prefix) === 0);
}
if (!compl) {
base.process[1] = function highlight(item, v)
template.highlight(typeof v == "xml" ? new String(v.toXMLString()) : v, true, 200);
// Sort in a logical fashion for object keys:
// Numbers are sorted as numbers, rather than strings, and appear first.
// Constants are unsorted, and appear before other non-null strings.
// Other strings are sorted in the default manner.
let compare = context.compare;
function isnan(item) item != '' && isNaN(item);
context.compare = function (a, b) {
let isnan = function isnan(item) item != '' && isNaN(item);
let compare = base.compare;
base.compare = function (a, b) {
if (!isnan(a.key) && !isnan(b.key))
return a.key - b.key;
return isnan(b.key) - isnan(a.key) || compare(a, b);
};
context.keys = {
text: args.prefix ? function (text) text.substr(args.prefix.length) : util.identity,
description: function (item) self.getKey(args.obj, item),
base.keys = {
text: prefix ? function (text) text.substr(prefix.length) : util.identity,
description: function (item) self.getKey(this.obj, item),
key: function (item) {
if (!isNaN(key))
return parseInt(key);
@@ -373,61 +367,61 @@ var JavaScript = Module("javascript", {
return item;
}
};
if (!context.anchored) // We've already listed anchored matches, so don't list them again here.
context.filters.push(function (item) util.compareIgnoreCase(item.text.substr(0, this.filter.length), this.filter));
if (args.obj == self.cache.evalContext)
context.regenerate = true;
context.generate = function () self.objectKeys(args.obj, !recurse);
};
}
let args = {
filter: last == null ? key : string,
last: last,
prefix: last != null ? key : ""
};
// We've already listed anchored matches, so don't list them again here.
function unanchored(item) util.compareIgnoreCase(item.text.substr(0, this.filter.length), this.filter);
objects.forEach(function (obj) {
let context = base.fork(obj[1]);
context.title = [obj[1]];
context.keys.obj = function () obj[0];
context.key = obj[1] + last;
if (obj[0] == this.cache.evalContext)
context.regenerate = true;
obj.ctxt_t = context.fork("toplevel");
if (!compl) {
obj.ctxt_p = context.fork("prototypes");
obj.ctxt_t.generate = function () self.objectKeys(obj[0], true);
obj.ctxt_p.generate = function () self.objectKeys(obj[0], false);
}
}, this);
this.context.forceAnchored = true;
// TODO: Make this a generic completion helper function.
for (let [, obj] in Iterator(objects))
this.context.fork(obj[1], this._top.offset, this, this._fill,
update({
obj: obj[0],
name: obj[1],
anchored: true,
completer: compl
}, args));
objects.forEach(function (obj) {
obj.ctxt_t.split(obj[1] + "/anchored", this, function (context) {
context.anchored = true;
if (compl)
compl(context, obj[0]);
});
});
if (orig)
if (compl)
return;
for (let [, obj] in Iterator(objects))
this.context.fork(obj[1] + "/prototypes", this._top.offset, this, this._fill,
update({
obj: obj[0],
name: obj[1] + " (prototypes)",
anchored: true,
completer: function (a, b) compl(a, b, true)
}, args));
objects.forEach(function (obj) {
obj.ctxt_p.split(obj[1] + "/anchored", this, function (context) {
context.anchored = true;
context.title[0] += " (prototypes)";
});
});
for (let [, obj] in Iterator(objects))
this.context.fork(obj[1] + "/substrings", this._top.offset, this, this._fill,
update({
obj: obj[0],
name: obj[1] + " (substrings)",
anchored: false,
completer: compl
}, args));
objects.forEach(function (obj) {
obj.ctxt_t.split(obj[1] + "/unanchored", this, function (context) {
context.anchored = false;
context.title[0] += " (substrings)";
context.filters.push(unanchored);
});
});
for (let [, obj] in Iterator(objects))
this.context.fork(obj[1] + "/prototypes/substrings", this._top.offset, this, this._fill,
update({
obj: obj[0],
name: obj[1] + " (prototype substrings)",
anchored: false,
completer: function (a, b) compl(a, b, true)
}, args));
objects.forEach(function (obj) {
obj.ctxt_p.split(obj[1] + "/unanchored", this, function (context) {
context.anchored = false;
context.title[0] += " (prototype substrings)";
context.filters.push(unanchored);
});
});
},
_getKey: function () {
@@ -561,7 +555,7 @@ var JavaScript = Module("javascript", {
args.push(key + string);
let compl = function (context, obj) {
let res = completer.call(self, context, funcName, obj.obj, args);
let res = completer.call(self, context, funcName, obj, args);
if (res)
context.completions = res;
};