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Added support for evaluating references (ie, expressions in braces, addresses in brackets)

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This commit is contained in:
Jeff Parsons 2015-08-20 10:03:40 -07:00
commit 442efbc5dd
1 changed files with 10 additions and 0 deletions
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modules/pcjs/lib/debugger.js
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@ -4459,6 +4459,13 @@ if (DEBUGGER) {
* *
* Unary operators like '~' and ternary operators like '?:' are not supported; neither are parentheses. * Unary operators like '~' and ternary operators like '?:' are not supported; neither are parentheses.
* *
* However, parseReference() now makes it possible to write parenthetical-style sub-expressions by using
* {...} (braces), as well as address references by using [...] (brackets).
*
* Why am I using braces instead of parentheses for sub-expressions? Because parseReference() serves
* multiple purposes, the other being reference replacement in message strings passing through replaceRegs(),
* and I didn't want parentheses taking on a new meaning in message strings.
*
* @this {Debugger} * @this {Debugger}
* @param {string|undefined} sExp * @param {string|undefined} sExp
* @param {boolean} [fPrint] is true to print all resolved values, false for quiet parsing * @param {boolean} [fPrint] is true to print all resolved values, false for quiet parsing
@ -4469,6 +4476,9 @@ if (DEBUGGER) {
var value; var value;
if (sExp) { if (sExp) {
/*
* First process (and eliminate) any references, aka sub-expressions.
*/
sExp = this.parseReference(sExp); sExp = this.parseReference(sExp);
var i = 0; var i = 0;