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Switch to two arrays for instructions.

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This commit is contained in:
Brendan Dahl 2011-12-28 20:08:18 -08:00
parent 971f35d165
commit 27b0d0c941
2 changed files with 48 additions and 37 deletions
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20
test/unit/function_spec.js
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@ -38,13 +38,13 @@ describe('function', function() {
}
it('parses empty programs', function() {
var output = parse('{}');
expect(output.length).toEqual(0);
expect(output[0].length).toEqual(0);
});
it('parses positive numbers', function() {
var number = 999;
var program = parse('{ ' + number + ' }');
var expectedProgram = [
['push', number]
['push'], [number]
];
expect(program).toMatchArray(expectedProgram);
});
@ -52,7 +52,7 @@ describe('function', function() {
var number = -999;
var program = parse('{ ' + number + ' }');
var expectedProgram = [
['push', number]
['push'], [number]
];
expect(program).toMatchArray(expectedProgram);
});
@ -60,32 +60,28 @@ describe('function', function() {
var number = 3.3;
var program = parse('{ ' + number + ' }');
var expectedProgram = [
['push', number]
['push'], [number]
];
expect(program).toMatchArray(expectedProgram);
});
it('parses operators', function() {
var program = parse('{ sub }');
var expectedProgram = [
['sub']
['sub'], [null]
];
expect(program).toMatchArray(expectedProgram);
});
it('parses if statements', function() {
var program = parse('{ { 99 } if }');
var expectedProgram = [
['jz', 2],
['push', 99]
['jz', 'push'], [2, 99]
];
expect(program).toMatchArray(expectedProgram);
});
it('parses ifelse statements', function() {
var program = parse('{ { 99 } { 44 } ifelse }');
var expectedProgram = [
['jz', 3],
['push', 99],
['j', 4],
['push', 44]
['jz', 'push', 'j', 'push'], [3, 99, 4, 44]
];
expect(program).toMatchArray(expectedProgram);
});
@ -100,7 +96,7 @@ describe('function', function() {
var stream = new StringStream(program);
var parser = new PostScriptParser(new PostScriptLexer(stream));
var code = parser.parse();
var evaluator = new PostScriptEvaluator(code);
var evaluator = new PostScriptEvaluator(code[0], code[1]);
var output = evaluator.execute();
return output;
}