Jasmine: Convert |computeVarNames| compiler pass tests
David Majda
12 years ago
parent
1471df9a69
commit
4edc9982cc
@ -0,0 +1,273 @@
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describe("compiler pass |computeVarNames|", function() {
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var pass = PEG.compiler.passes.computeVarNames;
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var leafDetails = { resultVar: "result0" },
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choiceDetails = {
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resultVar: "result0",
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alternatives: [
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{ resultVar: "result0", posVar: "pos0" },
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{ resultVar: "result0", posVar: "pos0" },
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{ resultVar: "result0", posVar: "pos0" }
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]
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},
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sequenceDetails = {
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resultVar: "result0",
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posVar: "pos0",
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elements: [
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{ resultVar: "result0", posVar: "pos1" },
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{ resultVar: "result1", posVar: "pos1" },
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{ resultVar: "result2", posVar: "pos1" }
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]
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};
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function ruleDetails(details) { return { rules: [details] }; }
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beforeEach(function() {
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this.addMatchers({
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toChangeAST: function(grammar, details) {
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function matchDetails(value, details) {
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function isArray(value) {
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return Object.prototype.toString.apply(value) === "[object Array]";
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}
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function isObject(value) {
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return value !== null && typeof value === "object";
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}
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var i, key;
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if (isArray(details)) {
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if (!isArray(value)) { return false; }
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if (value.length !== details.length) { return false; }
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for (i = 0; i < details.length; i++) {
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if (!matchDetails(value[i], details[i])) { return false; }
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}
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return true;
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} else if (isObject(details)) {
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if (!isObject(value)) { return false; }
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for (key in details) {
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if (!(key in value)) { return false; }
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if (!matchDetails(value[key], details[key])) { return false; }
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}
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return true;
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} else {
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return value === details;
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}
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}
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var ast = PEG.parser.parse(grammar);
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this.actual(ast);
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this.message = function() {
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return "Expected the pass "
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+ (this.isNot ? "not " : "")
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+ "to change the AST " + jasmine.pp(ast) + " "
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+ "to match " + jasmine.pp(details) + ", "
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+ "but it " + (this.isNot ? "did" : "didn't") + ".";
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};
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return matchDetails(ast, details);
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}
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});
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});
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it("computes variable names for a choice", function() {
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expect(pass).toChangeAST('start = &"a" / &"b" / &"c"', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0"],
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expression: choiceDetails
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}));
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expect(pass).toChangeAST('start = &"a" / &"b"* / &"c"', ruleDetails({
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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expression: choiceDetails
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}));
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expect(pass).toChangeAST('start = &"a" / &(&"b") / &"c"', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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expression: choiceDetails
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}));
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});
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it("computes variable names for a sequence", function() {
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expect(pass).toChangeAST('start = ', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0"],
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expression: { resultVar: "result0", posVar: "pos0" }
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}));
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expect(pass).toChangeAST('start = &"a" &"b" &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &"a" &"b" &"c"*', ruleDetails({
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &"a" &"b"* &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &"a" &("b"*)* &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &"a"* &"b" &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &("a"*)* &"b" &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &(("a"*)*)* &"b" &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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expression: sequenceDetails
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}));
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expect(pass).toChangeAST('start = &"a" &(&"b") &"c"', ruleDetails({
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1", "pos2"],
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expression: sequenceDetails
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}));
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});
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it("computes variable names for a labeled", function() {
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expect(pass).toChangeAST('start = label:&"a"', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0"],
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expression: {
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resultVar: "result0",
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expression: { resultVar: "result0", posVar: "pos0" }
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}
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}));
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});
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it("computes variable names for a simple and", function() {
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expect(pass).toChangeAST('start = &(&"a")', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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expression: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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}));
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});
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it("computes variable names for a simple not", function() {
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expect(pass).toChangeAST('start = !(&"a")', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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expression: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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}));
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});
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it("computes variable names for a semantic and", function() {
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expect(pass).toChangeAST('start = &{ code }', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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it("computes variable names for a semantic not", function() {
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expect(pass).toChangeAST('start = !{ code }', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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it("computes variable names for an optional", function() {
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expect(pass).toChangeAST('start = (&"a")?', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0"],
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expression: {
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resultVar: "result0",
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expression: { resultVar: "result0", posVar: "pos0" }
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}
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}));
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});
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it("computes variable names for a zero or more", function() {
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expect(pass).toChangeAST('start = (&"a")*', ruleDetails({
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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expression: {
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resultVar: "result0",
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expression: { resultVar: "result1", posVar: "pos0" }
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}
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}));
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});
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it("computes variable names for a one or more", function() {
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expect(pass).toChangeAST('start = (&"a")+', ruleDetails({
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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expression: {
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resultVar: "result0",
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expression: { resultVar: "result1", posVar: "pos0" }
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}
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}));
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});
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it("computes variable names for an action", function() {
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expect(pass).toChangeAST('start = &"a" { code }', ruleDetails({
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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expression: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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}));
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});
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it("computes variable names for a rule reference", function() {
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expect(pass).toChangeAST('start = a', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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it("computes variable names for a literal", function() {
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expect(pass).toChangeAST('start = "a"', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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it("computes variable names for an any", function() {
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expect(pass).toChangeAST('start = .', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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it("computes variable names for a class", function() {
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expect(pass).toChangeAST('start = [a-z]', ruleDetails({
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resultVars: ["result0"],
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posVars: [],
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expression: leafDetails
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}));
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});
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});
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@ -1,231 +0,0 @@
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(function() {
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module("PEG.compiler.passes.computeVarNames");
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test("computes variable names", function() {
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var leafDetails = { resultVar: "result0" },
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choiceDetails = {
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resultVar: "result0",
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alternatives: [
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{ resultVar: "result0", posVar: "pos0" },
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{ resultVar: "result0", posVar: "pos0" },
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{ resultVar: "result0", posVar: "pos0" }
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]
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},
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sequenceDetails = {
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resultVar: "result0",
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posVar: "pos0",
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elements: [
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{ resultVar: "result0", posVar: "pos1" },
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{ resultVar: "result1", posVar: "pos1" },
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{ resultVar: "result2", posVar: "pos1" }
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]
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};
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var cases = [
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/* Choice */
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{
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grammar: 'start = &"a" / &"b" / &"c"',
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resultVars: ["result0"],
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posVars: ["pos0"],
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details: choiceDetails
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},
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{
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grammar: 'start = &"a" / &"b"* / &"c"',
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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details: choiceDetails
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},
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{
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grammar: 'start = &"a" / &(&"b") / &"c"',
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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details: choiceDetails
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},
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/* Sequence */
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{
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grammar: 'start = ',
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resultVars: ["result0"],
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posVars: ["pos0"],
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details: { resultVar: "result0", posVar: "pos0" }
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},
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{
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grammar: 'start = &"a" &"b" &"c"',
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &"a" &"b" &"c"*',
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &"a" &"b"* &"c"',
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &"a" &("b"*)* &"c"',
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &"a"* &"b" &"c"',
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &("a"*)* &"b" &"c"',
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &(("a"*)*)* &"b" &"c"',
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resultVars: ["result0", "result1", "result2", "result3"],
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posVars: ["pos0", "pos1"],
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details: sequenceDetails
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},
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{
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grammar: 'start = &"a" &(&"b") &"c"',
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resultVars: ["result0", "result1", "result2"],
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posVars: ["pos0", "pos1", "pos2"],
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details: sequenceDetails
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},
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/* Others */
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{
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grammar: 'start = label:&"a"',
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resultVars: ["result0"],
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posVars: ["pos0"],
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details: {
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resultVar: "result0",
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expression: { resultVar: "result0", posVar: "pos0" }
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}
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},
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{
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grammar: 'start = &(&"a")',
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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details: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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},
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{
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grammar: 'start = !(&"a")',
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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details: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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},
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{
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grammar: 'start = &{ code }',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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},
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{
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grammar: 'start = !{ code }',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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},
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{
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grammar: 'start = (&"a")?',
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resultVars: ["result0"],
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posVars: ["pos0"],
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details: {
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resultVar: "result0",
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expression: { resultVar: "result0", posVar: "pos0" }
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}
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},
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{
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grammar: 'start = (&"a")*',
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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details: {
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resultVar: "result0",
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expression: { resultVar: "result1", posVar: "pos0" }
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}
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},
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{
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grammar: 'start = (&"a")+',
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resultVars: ["result0", "result1"],
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posVars: ["pos0"],
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details: {
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resultVar: "result0",
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expression: { resultVar: "result1", posVar: "pos0" }
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}
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},
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{
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grammar: 'start = &"a" { code }',
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resultVars: ["result0"],
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posVars: ["pos0", "pos1"],
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details: {
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resultVar: "result0",
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posVar: "pos0",
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expression: { resultVar: "result0", posVar: "pos1" }
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}
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},
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{
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grammar: 'start = a',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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},
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{
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grammar: 'start = "a"',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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},
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{
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grammar: 'start = .',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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},
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{
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grammar: 'start = [a-z]',
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resultVars: ["result0"],
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posVars: [],
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details: leafDetails
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}
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];
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function checkDetails(node, details) {
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for (var key in details) {
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if (Object.prototype.toString.call(details[key]) === "[object Array]") {
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for (var i = 0; i < details[key].length; i++) {
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checkDetails(node[key][i], details[key][i]);
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}
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} else if (typeof details[key] === "object") {
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checkDetails(node[key], details[key]);
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} else {
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strictEqual(node[key], details[key]);
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}
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}
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||||
}
|
||||
|
||||
for (var i = 0; i < cases.length; i++) {
|
||||
var ast = PEG.parser.parse(cases[i].grammar);
|
||||
PEG.compiler.passes.computeVarNames(ast);
|
||||
|
||||
deepEqual(ast.rules[0].resultVars, cases[i].resultVars);
|
||||
deepEqual(ast.rules[0].posVars, cases[i].posVars);
|
||||
checkDetails(ast.rules[0].expression, cases[i].details);
|
||||
}
|
||||
});
|
||||
|
||||
})();
|
||||
Loading…
Reference in New Issue