Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Jasmine: Convert |computeVarNames| compiler pass tests
- Loading branch information
Showing
5 changed files
with
274 additions
and
233 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,273 @@ | ||
describe("compiler pass |computeVarNames|", function() { | ||
var pass = PEG.compiler.passes.computeVarNames; | ||
|
||
var leafDetails = { resultVar: "result0" }, | ||
choiceDetails = { | ||
resultVar: "result0", | ||
alternatives: [ | ||
{ resultVar: "result0", posVar: "pos0" }, | ||
{ resultVar: "result0", posVar: "pos0" }, | ||
{ resultVar: "result0", posVar: "pos0" } | ||
] | ||
}, | ||
sequenceDetails = { | ||
resultVar: "result0", | ||
posVar: "pos0", | ||
elements: [ | ||
{ resultVar: "result0", posVar: "pos1" }, | ||
{ resultVar: "result1", posVar: "pos1" }, | ||
{ resultVar: "result2", posVar: "pos1" } | ||
] | ||
}; | ||
|
||
function ruleDetails(details) { return { rules: [details] }; } | ||
|
||
beforeEach(function() { | ||
this.addMatchers({ | ||
toChangeAST: function(grammar, details) { | ||
function matchDetails(value, details) { | ||
function isArray(value) { | ||
return Object.prototype.toString.apply(value) === "[object Array]"; | ||
} | ||
|
||
function isObject(value) { | ||
return value !== null && typeof value === "object"; | ||
} | ||
|
||
var i, key; | ||
|
||
if (isArray(details)) { | ||
if (!isArray(value)) { return false; } | ||
|
||
if (value.length !== details.length) { return false; } | ||
for (i = 0; i < details.length; i++) { | ||
if (!matchDetails(value[i], details[i])) { return false; } | ||
} | ||
|
||
return true; | ||
} else if (isObject(details)) { | ||
if (!isObject(value)) { return false; } | ||
|
||
for (key in details) { | ||
if (!(key in value)) { return false; } | ||
|
||
if (!matchDetails(value[key], details[key])) { return false; } | ||
} | ||
|
||
return true; | ||
} else { | ||
return value === details; | ||
} | ||
} | ||
|
||
var ast = PEG.parser.parse(grammar); | ||
|
||
this.actual(ast); | ||
|
||
this.message = function() { | ||
return "Expected the pass " | ||
+ (this.isNot ? "not " : "") | ||
+ "to change the AST " + jasmine.pp(ast) + " " | ||
+ "to match " + jasmine.pp(details) + ", " | ||
+ "but it " + (this.isNot ? "did" : "didn't") + "."; | ||
}; | ||
|
||
return matchDetails(ast, details); | ||
} | ||
}); | ||
}); | ||
|
||
it("computes variable names for a choice", function() { | ||
expect(pass).toChangeAST('start = &"a" / &"b" / &"c"', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0"], | ||
expression: choiceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" / &"b"* / &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1"], | ||
posVars: ["pos0"], | ||
expression: choiceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" / &(&"b") / &"c"', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0", "pos1"], | ||
expression: choiceDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for a sequence", function() { | ||
expect(pass).toChangeAST('start = ', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0"], | ||
expression: { resultVar: "result0", posVar: "pos0" } | ||
})); | ||
expect(pass).toChangeAST('start = &"a" &"b" &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" &"b" &"c"*', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2", "result3"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" &"b"* &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" &("b"*)* &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2", "result3"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a"* &"b" &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &("a"*)* &"b" &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &(("a"*)*)* &"b" &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2", "result3"], | ||
posVars: ["pos0", "pos1"], | ||
expression: sequenceDetails | ||
})); | ||
expect(pass).toChangeAST('start = &"a" &(&"b") &"c"', ruleDetails({ | ||
resultVars: ["result0", "result1", "result2"], | ||
posVars: ["pos0", "pos1", "pos2"], | ||
expression: sequenceDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for a labeled", function() { | ||
expect(pass).toChangeAST('start = label:&"a"', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0"], | ||
expression: { | ||
resultVar: "result0", | ||
expression: { resultVar: "result0", posVar: "pos0" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a simple and", function() { | ||
expect(pass).toChangeAST('start = &(&"a")', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0", "pos1"], | ||
expression: { | ||
resultVar: "result0", | ||
posVar: "pos0", | ||
expression: { resultVar: "result0", posVar: "pos1" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a simple not", function() { | ||
expect(pass).toChangeAST('start = !(&"a")', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0", "pos1"], | ||
expression: { | ||
resultVar: "result0", | ||
posVar: "pos0", | ||
expression: { resultVar: "result0", posVar: "pos1" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a semantic and", function() { | ||
expect(pass).toChangeAST('start = &{ code }', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for a semantic not", function() { | ||
expect(pass).toChangeAST('start = !{ code }', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for an optional", function() { | ||
expect(pass).toChangeAST('start = (&"a")?', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0"], | ||
expression: { | ||
resultVar: "result0", | ||
expression: { resultVar: "result0", posVar: "pos0" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a zero or more", function() { | ||
expect(pass).toChangeAST('start = (&"a")*', ruleDetails({ | ||
resultVars: ["result0", "result1"], | ||
posVars: ["pos0"], | ||
expression: { | ||
resultVar: "result0", | ||
expression: { resultVar: "result1", posVar: "pos0" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a one or more", function() { | ||
expect(pass).toChangeAST('start = (&"a")+', ruleDetails({ | ||
resultVars: ["result0", "result1"], | ||
posVars: ["pos0"], | ||
expression: { | ||
resultVar: "result0", | ||
expression: { resultVar: "result1", posVar: "pos0" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for an action", function() { | ||
expect(pass).toChangeAST('start = &"a" { code }', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: ["pos0", "pos1"], | ||
expression: { | ||
resultVar: "result0", | ||
posVar: "pos0", | ||
expression: { resultVar: "result0", posVar: "pos1" } | ||
} | ||
})); | ||
}); | ||
|
||
it("computes variable names for a rule reference", function() { | ||
expect(pass).toChangeAST('start = a', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for a literal", function() { | ||
expect(pass).toChangeAST('start = "a"', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for an any", function() { | ||
expect(pass).toChangeAST('start = .', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
|
||
it("computes variable names for a class", function() { | ||
expect(pass).toChangeAST('start = [a-z]', ruleDetails({ | ||
resultVars: ["result0"], | ||
posVars: [], | ||
expression: leafDetails | ||
})); | ||
}); | ||
}); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.