Skip to content

Commit

Permalink
Merge pull request mozilla#11672 from Snuffleupagus/Dict-set-value-as…
Browse files Browse the repository at this point in the history
…sert

Slightly simplify the lookup of data in `Dict.{get, getAsync, has}`
  • Loading branch information
timvandermeij authored Mar 6, 2020
2 parents 977049c + 160cfc4 commit 5d566b9
Show file tree
Hide file tree
Showing 3 changed files with 20 additions and 11 deletions.
2 changes: 1 addition & 1 deletion src/core/evaluator.js
Original file line number Diff line number Diff line change
Expand Up @@ -3017,7 +3017,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// is a tagged pdf. Create a barbebones one to get by.
descriptor = new Dict(null);
descriptor.set("FontName", Name.get(type));
descriptor.set("FontBBox", dict.getArray("FontBBox"));
descriptor.set("FontBBox", dict.getArray("FontBBox") || [0, 0, 0, 0]);
} else {
// Before PDF 1.5 if the font was one of the base 14 fonts, having a
// FontDescriptor was not required.
Expand Down
19 changes: 13 additions & 6 deletions src/core/primitives.js
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
*/
/* uses XRef */

import { assert } from "../shared/util.js";
import { assert, unreachable } from "../shared/util.js";

var EOF = {};

Expand Down Expand Up @@ -85,9 +85,9 @@ var Dict = (function DictClosure() {
// automatically dereferences Ref objects
get(key1, key2, key3) {
let value = this._map[key1];
if (value === undefined && !(key1 in this._map) && key2 !== undefined) {
if (value === undefined && key2 !== undefined) {
value = this._map[key2];
if (value === undefined && !(key2 in this._map) && key3 !== undefined) {
if (value === undefined && key3 !== undefined) {
value = this._map[key3];
}
}
Expand All @@ -100,9 +100,9 @@ var Dict = (function DictClosure() {
// Same as get(), but returns a promise and uses fetchIfRefAsync().
async getAsync(key1, key2, key3) {
let value = this._map[key1];
if (value === undefined && !(key1 in this._map) && key2 !== undefined) {
if (value === undefined && key2 !== undefined) {
value = this._map[key2];
if (value === undefined && !(key2 in this._map) && key3 !== undefined) {
if (value === undefined && key3 !== undefined) {
value = this._map[key3];
}
}
Expand Down Expand Up @@ -138,11 +138,18 @@ var Dict = (function DictClosure() {
},

set: function Dict_set(key, value) {
if (
(typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || TESTING")) &&
value === undefined
) {
unreachable('Dict.set: The "value" cannot be undefined.');
}
this._map[key] = value;
},

has: function Dict_has(key) {
return key in this._map;
return this._map[key] !== undefined;
},

forEach: function Dict_forEach(callback) {
Expand Down
10 changes: 6 additions & 4 deletions test/unit/primitives_spec.js
Original file line number Diff line number Diff line change
Expand Up @@ -121,11 +121,13 @@ describe("primitives", function() {
checkInvalidKeyValues(dictWithSizeKey);
});

it("should return correct value for stored Size key with undefined value", function() {
var dict = new Dict();
dict.set("Size");
it("should not accept to set a key with an undefined value", function() {
const dict = new Dict();
expect(function() {
dict.set("Size");
}).toThrow(new Error('Dict.set: The "value" cannot be undefined.'));

expect(dict.has("Size")).toBeTruthy();
expect(dict.has("Size")).toBeFalsy();

checkInvalidKeyValues(dict);
});
Expand Down

0 comments on commit 5d566b9

Please sign in to comment.