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657 lines
23 KiB
JavaScript
657 lines
23 KiB
JavaScript
describe("compiler pass |generateBytecode|", function() {
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var pass = PEG.compiler.passes.generate.generateBytecode;
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function bytecodeDetails(bytecode) {
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return {
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rules: [{ bytecode: bytecode }]
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};
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}
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function constsDetails(consts) { return { consts: consts }; }
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describe("for grammar", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST([
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'a = "a"',
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'b = "b"',
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'c = "c"'
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].join("\n"), {
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rules: [
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{ bytecode: [14, 0, 2, 2, 18, 0, 19, 1] },
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{ bytecode: [14, 2, 2, 2, 18, 2, 19, 3] },
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{ bytecode: [14, 4, 2, 2, 18, 4, 19, 5] }
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]
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});
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST([
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'a = "a"',
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'b = "b"',
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'c = "c"'
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].join("\n"), constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'"b"',
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'{ type: "literal", value: "b", description: "\\"b\\"" }',
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'"c"',
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'{ type: "literal", value: "c", description: "\\"c\\"" }'
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]));
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});
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});
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describe("for rule", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST('start = "a"', bytecodeDetails([
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14, 0, 2, 2, 18, 0, 19, 1 // <expression>
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]));
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});
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});
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describe("for named", function() {
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var grammar = 'start "start" = "a"';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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24, // SILENT_FAILS_ON
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14, 1, 2, 2, 18, 1, 19, 2, // <expression>
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25, // SILENT_FAILS_OFF
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10, 2, 0, // IF_ERROR
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19, 0 // * FAIL
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'{ type: "other", description: "start" }',
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for choice", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST('start = "a" / "b" / "c"', bytecodeDetails([
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14, 0, 2, 2, 18, 0, 19, 1, // <alternatives[0]>
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10, 21, 0, // IF_ERROR
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2, // * POP
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14, 2, 2, 2, 18, 2, 19, 3, // <alternatives[1]>
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10, 9, 0, // IF_ERROR
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2, // * POP
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14, 4, 2, 2, 18, 4, 19, 5 // <alternatives[2]>
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]));
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});
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});
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describe("for action", function() {
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describe("without labels", function() {
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var grammar = 'start = "a" { code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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11, 6, 0, // IF_NOT_ERROR
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20, 1, // * REPORT_SAVED_POS
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22, 2, 1, 0, // CALL
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5 // NIP
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'function() { code }'
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]));
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});
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});
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describe("with one label", function() {
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var grammar = 'start = a:"a" { code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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11, 7, 0, // IF_NOT_ERROR
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20, 1, // * REPORT_SAVED_POS
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22, 2, 1, 1, 0, // CALL
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5 // NIP
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'function(a) { code }'
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]));
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});
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});
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describe("with multiple labels", function() {
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var grammar = 'start = a:"a" b:"b" c:"c" { code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <elements[0]>
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11, 40, 3, // IF_NOT_ERROR
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14, 2, 2, 2, 18, 2, 19, 3, // * <elements[1]>
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11, 25, 4, // IF_NOT_ERROR
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14, 4, 2, 2, 18, 4, 19, 5, // * <elements[2]>
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11, 10, 4, // IF_NOT_ERROR
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20, 3, // * REPORT_SAVED_POS
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22, 6, 3, 3, 2, 1, 0, // CALL
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5, // NIP
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4, 3, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 2, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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2, // * POP
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3, // POP_CURR_POS
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'"b"',
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'{ type: "literal", value: "b", description: "\\"b\\"" }',
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'"c"',
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'{ type: "literal", value: "c", description: "\\"c\\"" }',
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'function(a, b, c) { code }'
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]));
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});
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});
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});
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describe("for sequence", function() {
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var grammar = 'start = "a" "b" "c"';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <elements[0]>
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11, 33, 3, // IF_NOT_ERROR
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14, 2, 2, 2, 18, 2, 19, 3, // * <elements[1]>
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11, 18, 4, // IF_NOT_ERROR
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14, 4, 2, 2, 18, 4, 19, 5, // * <elements[2]>
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11, 3, 4, // IF_NOT_ERROR
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7, 3, // * WRAP
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5, // NIP
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4, 3, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 2, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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2, // * POP
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3, // POP_CURR_POS
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'"b"',
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'{ type: "literal", value: "b", description: "\\"b\\"" }',
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'"c"',
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'{ type: "literal", value: "c", description: "\\"c\\"" }'
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]));
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});
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});
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describe("for labeled", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST('start = a:"a"', bytecodeDetails([
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14, 0, 2, 2, 18, 0, 19, 1 // <expression>
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]));
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});
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});
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describe("for text", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST('start = $"a"', bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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11, 2, 1, // IF_NOT_ERROR
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2, // * POP
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8, // TEXT
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5 // * NIP
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]));
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});
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});
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describe("for simple and", function() {
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var grammar = 'start = &"a"';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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24, // SILENT_FAILS_ON
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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25, // SILENT_FAILS_OFF
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11, 3, 3, // IF_NOT_ERROR
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2, // * POP
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3, // POP_CURR_POS
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26, // PUSH_UNDEFINED
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2, // * POP
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2, // POP
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for simple not", function() {
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var grammar = 'start = !"a"';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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24, // SILENT_FAILS_ON
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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25, // SILENT_FAILS_OFF
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10, 3, 3, // IF_ERROR
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2, // * POP
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2, // POP
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26, // PUSH_UNDEFINED
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2, // * POP
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3, // POP_CURR_POS
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for semantic and", function() {
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describe("without labels", function() {
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var grammar = 'start = &{ code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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21, // REPORT_CURR_POS
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22, 0, 0, 0, // CALL
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9, 2, 2, // IF
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2, // * POP
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26, // PUSH_UNDEFINED
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2, // * POP
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(
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grammar,
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constsDetails(['function() { code }'])
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);
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});
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});
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describe("with labels", function() {
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var grammar = 'start = a:"a" b:"b" c:"c" &{ code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <elements[0]>
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11, 55, 3, // IF_NOT_ERROR
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14, 2, 2, 2, 18, 2, 19, 3, // * <elements[1]>
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11, 40, 4, // IF_NOT_ERROR
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14, 4, 2, 2, 18, 4, 19, 5, // * <elements[2]>
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11, 25, 4, // IF_NOT_ERROR
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21, // * REPORT_CURR_POS
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22, 6, 0, 3, 2, 1, 0, // CALL
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9, 2, 2, // IF
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2, // * POP
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26, // PUSH_UNDEFINED
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2, // * POP
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28, // PUSH_FAILED
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11, 3, 4, // IF_NOT_ERROR
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7, 4, // * WRAP
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5, // NIP
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4, 4, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 3, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 2, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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2, // * POP
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3, // POP_CURR_POS
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'"b"',
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'{ type: "literal", value: "b", description: "\\"b\\"" }',
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'"c"',
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'{ type: "literal", value: "c", description: "\\"c\\"" }',
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'function(a, b, c) { code }'
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]));
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});
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});
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});
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describe("for semantic not", function() {
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describe("without labels", function() {
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var grammar = 'start = !{ code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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21, // REPORT_CURR_POS
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22, 0, 0, 0, // CALL
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9, 2, 2, // IF
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2, // * POP
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28, // PUSH_FAILED
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2, // * POP
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26 // PUSH_UNDEFINED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(
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grammar,
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constsDetails(['function() { code }'])
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);
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});
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});
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describe("with labels", function() {
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var grammar = 'start = a:"a" b:"b" c:"c" !{ code }';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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1, // PUSH_CURR_POS
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14, 0, 2, 2, 18, 0, 19, 1, // <elements[0]>
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11, 55, 3, // IF_NOT_ERROR
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14, 2, 2, 2, 18, 2, 19, 3, // * <elements[1]>
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11, 40, 4, // IF_NOT_ERROR
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14, 4, 2, 2, 18, 4, 19, 5, // * <elements[2]>
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11, 25, 4, // IF_NOT_ERROR
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21, // * REPORT_CURR_POS
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22, 6, 0, 3, 2, 1, 0, // CALL
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9, 2, 2, // IF
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2, // * POP
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28, // PUSH_FAILED
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2, // * POP
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26, // PUSH_UNDEFINED
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11, 3, 4, // IF_NOT_ERROR
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7, 4, // * WRAP
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5, // NIP
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4, 4, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 3, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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4, 2, // * POP_N
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3, // POP_CURR_POS
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28, // PUSH_FAILED
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2, // * POP
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3, // POP_CURR_POS
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28 // PUSH_FAILED
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }',
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'"b"',
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'{ type: "literal", value: "b", description: "\\"b\\"" }',
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'"c"',
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'{ type: "literal", value: "c", description: "\\"c\\"" }',
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'function(a, b, c) { code }'
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]));
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});
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});
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});
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describe("for optional", function() {
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var grammar = 'start = "a"?';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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10, 2, 0, // IF_ERROR
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2, // * POP
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27 // PUSH_NULL
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for zero or more", function() {
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var grammar = 'start = "a"*';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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29, // PUSH_EMPTY_ARRAY
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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12, 9, // WHILE_NOT_ERROR
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6, // * APPEND
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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2 // POP
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]));
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});
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for one or more", function() {
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var grammar = 'start = "a"+';
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST(grammar, bytecodeDetails([
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29, // PUSH_EMPTY_ARRAY
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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11, 12, 3, // IF_NOT_ERROR
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12, 9, // * WHILE_NOT_ERROR
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6, // * APPEND
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14, 0, 2, 2, 18, 0, 19, 1, // <expression>
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2, // POP
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2, // * POP
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2, // POP
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28 // PUSH_FAILED
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]));
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});
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|
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it("defines correct constants", function() {
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expect(pass).toChangeAST(grammar, constsDetails([
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'"a"',
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'{ type: "literal", value: "a", description: "\\"a\\"" }'
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]));
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});
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});
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describe("for rule reference", function() {
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it("generates correct bytecode", function() {
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expect(pass).toChangeAST([
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'start = other',
|
|
'other = "other"'
|
|
].join("\n"), {
|
|
rules: [
|
|
{
|
|
bytecode: [23, 1] // RULE
|
|
},
|
|
{ }
|
|
]
|
|
});
|
|
});
|
|
});
|
|
|
|
describe("for literal", function() {
|
|
describe("empty", function() {
|
|
var grammar = 'start = ""';
|
|
|
|
it("generates correct bytecode", function() {
|
|
expect(pass).toChangeAST(grammar, bytecodeDetails([
|
|
0, 0 // PUSH
|
|
]));
|
|
});
|
|
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST(grammar, constsDetails(['""']));
|
|
});
|
|
});
|
|
|
|
describe("non-empty case-sensitive", function() {
|
|
var grammar = 'start = "a"';
|
|
|
|
it("generates correct bytecode", function() {
|
|
expect(pass).toChangeAST(grammar, bytecodeDetails([
|
|
14, 0, 2, 2, // MATCH_STRING
|
|
18, 0, // * ACCEPT_STRING
|
|
19, 1 // * FAIL
|
|
]));
|
|
});
|
|
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST(grammar, constsDetails([
|
|
'"a"',
|
|
'{ type: "literal", value: "a", description: "\\"a\\"" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("non-empty case-insensitive", function() {
|
|
var grammar = 'start = "A"i';
|
|
|
|
it("generates correct bytecode", function() {
|
|
expect(pass).toChangeAST(grammar, bytecodeDetails([
|
|
15, 0, 2, 2, // MATCH_STRING_IC
|
|
17, 1, // * ACCEPT_N
|
|
19, 1 // * FAIL
|
|
]));
|
|
});
|
|
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST(grammar, constsDetails([
|
|
'"a"',
|
|
'{ type: "literal", value: "A", description: "\\"A\\"" }'
|
|
]));
|
|
});
|
|
});
|
|
});
|
|
|
|
describe("for class", function() {
|
|
it("generates correct bytecode", function() {
|
|
expect(pass).toChangeAST('start = [a]', bytecodeDetails([
|
|
16, 0, 2, 2, // MATCH_REGEXP
|
|
17, 1, // * ACCEPT_N
|
|
19, 1 // * FAIL
|
|
]));
|
|
});
|
|
|
|
describe("non-empty non-inverted case-sensitive", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = [a]', constsDetails([
|
|
'/^[a]/',
|
|
'{ type: "class", value: "[a]", description: "[a]" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("non-empty inverted case-sensitive", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = [^a]', constsDetails([
|
|
'/^[^a]/',
|
|
'{ type: "class", value: "[^a]", description: "[^a]" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("non-empty non-inverted case-insensitive", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = [a]i', constsDetails([
|
|
'/^[a]/i',
|
|
'{ type: "class", value: "[a]i", description: "[a]i" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("non-empty complex", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = [ab-def-hij-l]', constsDetails([
|
|
'/^[ab-def-hij-l]/',
|
|
'{ type: "class", value: "[ab-def-hij-l]", description: "[ab-def-hij-l]" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("empty non-inverted", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = []', constsDetails([
|
|
'/^(?!)/',
|
|
'{ type: "class", value: "[]", description: "[]" }'
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("empty inverted", function() {
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST('start = [^]', constsDetails([
|
|
'/^[\\S\\s]/',
|
|
'{ type: "class", value: "[^]", description: "[^]" }'
|
|
]));
|
|
});
|
|
});
|
|
});
|
|
|
|
describe("for any", function() {
|
|
var grammar = 'start = .';
|
|
|
|
it("generates bytecode", function() {
|
|
expect(pass).toChangeAST(grammar, bytecodeDetails([
|
|
13, 2, 2, // MATCH_ANY
|
|
17, 1, // * ACCEPT_N
|
|
19, 0 // * FAIL
|
|
]));
|
|
});
|
|
|
|
it("defines correct constants", function() {
|
|
expect(pass).toChangeAST(
|
|
grammar,
|
|
constsDetails(['{ type: "any", description: "any character" }'])
|
|
);
|
|
});
|
|
});
|
|
});
|