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Add eofObj and helper for converting Obj->JS value

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This commit is contained in:
Chris Jones 2011-05-04 17:15:26 -05:00
parent 9969a937ce
commit bbab24da2e
1 changed files with 16 additions and 2 deletions
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18
pdf.js
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@ -92,11 +92,24 @@ var Obj = (function() {
return this.value.get(key); return this.value.get(key);
} }
} }
constructor.prototype.lowerToJS = function() {
if (this.isInt() || this.isReal() || this.isString()
|| this.isName() || this.isBool() || this.isNone()) {
return this.value;
} else if (this.isNull()) {
return null;
} else if (this.isArray()) {
return this.value.map(function (e) e.lowerToJS());
} else {
return undefined;
}
}
constructor.trueObj = new constructor(constructor.Bool, true); constructor.trueObj = new constructor(constructor.Bool, true);
constructor.falseObj = new constructor(constructor.Bool, false); constructor.falseObj = new constructor(constructor.Bool, false);
constructor.nullObj = new constructor(constructor.Null); constructor.nullObj = new constructor(constructor.Null);
constructor.errorObj = new constructor(constructor.Error); constructor.errorObj = new constructor(constructor.Error);
constructor.eofObj = new constructor(constructor.EOF);
return constructor; return constructor;
})(); })();
@ -662,7 +675,8 @@ var Interpreter = (function() {
dispatch: function(cmdObj, args) { dispatch: function(cmdObj, args) {
var fnName = this.getAndCheckCmd(cmdObj, args); var fnName = this.getAndCheckCmd(cmdObj, args);
this.gfx[fnName].apply(this.gfx, args.map(function(o) o.value)); this.gfx[fnName].apply(this.gfx,
args.map(function(o) o.lowerToJS()));
}, },
getAndCheckCmd: function(cmdObj, args) { getAndCheckCmd: function(cmdObj, args) {
const CMD_TABLE = { const CMD_TABLE = {
@ -941,7 +955,7 @@ function runEchoTests() {
function name(n) { return new Obj(Obj.Name, n); } function name(n) { return new Obj(Obj.Name, n); }
function int(i) { return new Obj(Obj.Int, i); } function int(i) { return new Obj(Obj.Int, i); }
function string(s) { return new Obj(Obj.String, s); } function string(s) { return new Obj(Obj.String, s); }
function eof() { return new Obj(Obj.EOF); } function eof() { return Obj.eofObj; }
function array(a) { return new Obj(Obj.Array, a); } function array(a) { return new Obj(Obj.Array, a); }
function real(r) { return new Obj(Obj.Real, r); } function real(r) { return new Obj(Obj.Real, r); }