You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.8 KiB
JavaScript
87 lines
2.8 KiB
JavaScript
describe("compiler pass |reportMissingRules|", function() {
|
|
var pass = PEG.compiler.passes.reportMissingRules;
|
|
|
|
beforeEach(function() {
|
|
this.addMatchers({
|
|
toReportMissingRuleIn: function(grammar) {
|
|
var ast = PEG.parser.parse(grammar);
|
|
|
|
try {
|
|
this.actual(ast);
|
|
|
|
this.message = function() {
|
|
return "Expected the pass to report a missing rule for grammar "
|
|
+ jasmine.pp(grammar) + ", "
|
|
+ "but it didn't.";
|
|
};
|
|
|
|
return false;
|
|
} catch (e) {
|
|
if (this.isNot) {
|
|
this.message = function() {
|
|
return "Expected the pass not to report a missing rule for grammar "
|
|
+ jasmine.pp(grammar) + ", "
|
|
+ "but it did.";
|
|
};
|
|
} else {
|
|
this.message = function() {
|
|
return "Expected the pass to report a missing rule for grammar "
|
|
+ jasmine.pp(grammar) + ", "
|
|
+ "but it reported an error with message "
|
|
+ jasmine.pp(e.message) + ".";
|
|
};
|
|
}
|
|
|
|
return e.message === 'Referenced rule "missing" does not exist.';
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it("reports missing rule referenced from a rule", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from a named", function() {
|
|
expect(pass).toReportMissingRuleIn('start "start" = missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from a choice", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing / "a" / "b"');
|
|
expect(pass).toReportMissingRuleIn('start = "a" / "b" / missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from an action", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing { }');
|
|
});
|
|
|
|
it("reports missing rule referenced from a sequence", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing "a" "b"');
|
|
expect(pass).toReportMissingRuleIn('start = "a" "b" missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from a labeled", function() {
|
|
expect(pass).toReportMissingRuleIn('start = label:missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from a simple and", function() {
|
|
expect(pass).toReportMissingRuleIn('start = &missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from a simple not", function() {
|
|
expect(pass).toReportMissingRuleIn('start = &missing');
|
|
});
|
|
|
|
it("reports missing rule referenced from an optional", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing?');
|
|
});
|
|
|
|
it("reports missing rule referenced from a zero or more", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing*');
|
|
});
|
|
|
|
it("reports missing rule referenced from a one or more", function() {
|
|
expect(pass).toReportMissingRuleIn('start = missing+');
|
|
});
|
|
});
|