725927e05f
Places all code that does something with "action" AST nodes under code handling "choice" nodes. This ordering is logical because now all the node handling code matches the sequence in which various node types usually appear when descending through the AST tree.
87 lines
2.8 KiB
JavaScript
87 lines
2.8 KiB
JavaScript
describe("compiler pass |reportMissingRules|", function() {
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var pass = PEG.compiler.passes.reportMissingRules;
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beforeEach(function() {
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this.addMatchers({
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toReportMissingRuleIn: function(grammar) {
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var ast = PEG.parser.parse(grammar);
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try {
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this.actual(ast);
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this.message = function() {
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return "Expected the pass to report a missing rule for grammar "
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+ jasmine.pp(grammar) + ", "
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+ "but it didn't.";
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};
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return false;
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} catch (e) {
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if (this.isNot) {
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this.message = function() {
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return "Expected the pass not to report a missing rule for grammar "
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+ jasmine.pp(grammar) + ", "
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+ "but it did.";
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};
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} else {
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this.message = function() {
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return "Expected the pass to report a missing rule for grammar "
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+ jasmine.pp(grammar) + ", "
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+ "but it reported an error with message "
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+ jasmine.pp(e.message) + ".";
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};
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}
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return e.message === 'Referenced rule "missing" does not exist.';
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}
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}
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});
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});
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it("reports missing rule referenced from a rule", function() {
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expect(pass).toReportMissingRuleIn('start = missing');
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});
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it("reports missing rule referenced from a named", function() {
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expect(pass).toReportMissingRuleIn('start "start" = missing');
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});
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it("reports missing rule referenced from a choice", function() {
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expect(pass).toReportMissingRuleIn('start = missing / "a" / "b"');
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expect(pass).toReportMissingRuleIn('start = "a" / "b" / missing');
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});
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it("reports missing rule referenced from an action", function() {
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expect(pass).toReportMissingRuleIn('start = missing { }');
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});
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it("reports missing rule referenced from a sequence", function() {
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expect(pass).toReportMissingRuleIn('start = missing "a" "b"');
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expect(pass).toReportMissingRuleIn('start = "a" "b" missing');
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});
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it("reports missing rule referenced from a labeled", function() {
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expect(pass).toReportMissingRuleIn('start = label:missing');
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});
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it("reports missing rule referenced from a simple and", function() {
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expect(pass).toReportMissingRuleIn('start = &missing');
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});
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it("reports missing rule referenced from a simple not", function() {
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expect(pass).toReportMissingRuleIn('start = &missing');
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});
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it("reports missing rule referenced from an optional", function() {
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expect(pass).toReportMissingRuleIn('start = missing?');
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});
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it("reports missing rule referenced from a zero or more", function() {
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expect(pass).toReportMissingRuleIn('start = missing*');
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});
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it("reports missing rule referenced from a one or more", function() {
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expect(pass).toReportMissingRuleIn('start = missing+');
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});
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});
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