http://git-wip-us.apache.org/repos/asf/incubator-cordova-windows/blob/03bf0cde/src/cordova-win8/lib/Jscex/src/jscex-jit.js ---------------------------------------------------------------------- diff --git a/src/cordova-win8/lib/Jscex/src/jscex-jit.js b/src/cordova-win8/lib/Jscex/src/jscex-jit.js deleted file mode 100644 index 43e09fd..0000000 --- a/src/cordova-win8/lib/Jscex/src/jscex-jit.js +++ /dev/null @@ -1,1692 +0,0 @@ -(function () { - "use strict"; - - var Jscex; - - var codeGenerator = (typeof eval("(function () {})") == "function") ? - function (code) { return code; } : - function (code) { return "false || " + code; }; - - // support string type only. - var stringify = (typeof JSON !== "undefined" && JSON.stringify) ? - function (s) { return JSON.stringify(s); } : - (function () { - // Implementation comes from JSON2 (http://www.json.org/js.html) - - var escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; - - var meta = { // table of character substitutions - '\b': '\\b', - '\t': '\\t', - '\n': '\\n', - '\f': '\\f', - '\r': '\\r', - '"' : '\\"', - '\\': '\\\\' - } - - return function (s) { - // If the string contains no control characters, no quote characters, and no - // backslash characters, then we can safely slap some quotes around it. - // Otherwise we must also replace the offending characters with safe escape - // sequences. - - escapable.lastIndex = 0; - return escapable.test(s) ? '"' + s.replace(escapable, function (a) { - var c = meta[a]; - return typeof c === 's' ? c : - '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); - }) + '"' : '"' + s + '"'; - }; - })(); - - function sprintf(format) { - var args = arguments; - return format.toString().replace(new RegExp("{\\d+}", "g"), function (p) { - var n = parseInt(p.substring(1, p.length - 1), 10); - return args[n + 1]; - }); - } - - function trim(s) { - return s.replace(/ +/g, ""); - } - - function getPrecedence(ast) { - var type = ast[0]; - switch (type) { - case "dot": // . - case "sub": // [] - case "call": // () - return 1; - case "unary-postfix": // ++ -- - ~ ! delete new typeof void - case "unary-prefix": - return 2; - case "var": - case "binary": - switch (ast[1]) { - case "*": - case "/": - case "%": - return 3; - case "+": - case "-": - return 4; - case "<<": - case ">>": - case ">>>": - return 5; - case "<": - case "<=": - case ">": - case ">=": - case "instanceof": - return 6; - case "==": - case "!=": - case "===": - case "!==": - return 7; - case "&": - return 8; - case "^": - return 9; - case "|": - return 10; - case "&&": - return 11; - case "||": - return 12; - } - case "conditional": - return 13; - case "assign": - return 14; - case "new": - return 15; - case "seq": - case "stat": - case "name": - case "object": - case "array": - case "num": - case "regexp": - case "string": - case "function": - case "defun": - case "for": - case "for-in": - case "block": - case "while": - case "do": - case "if": - case "break": - case "continue": - case "return": - case "throw": - case "try": - case "switch": - return 0; - default: - return 100; // the lowest - } - } - - var CodeWriter = function (indent) { - this._indent = indent || " "; - this._indentLevel = 0; - - this.lines = []; - } - CodeWriter.prototype = { - write: function (str) { - if (str === undefined) return; - - if (this.lines.length == 0) { - this.lines.push(""); - } - - this.lines[this.lines.length - 1] += str; - return this; - }, - - writeLine: function () { - this.write.apply(this, arguments); - this.lines.push(""); - return this; - }, - - writeIndents: function () { - var indents = new Array(this._indentLevel); - for (var i = 0; i < this._indentLevel; i++) { - indents[i] = this._indent; - } - - this.write(indents.join("")); - return this; - }, - - addIndentLevel: function (diff) { - this._indentLevel += diff; - return this; - } - }; - - var SeedProvider = function () { - this._seeds = {}; - } - SeedProvider.prototype.next = function (key) { - var value = this._seeds[key]; - if (value == undefined) { - this._seeds[key] = 0; - return 0; - } else { - this._seeds[key] = ++value; - return value; - } - } - - function isJscexPattern(ast) { - if (ast[0] != "call") return false; - - var evalName = ast[1]; - if (evalName[0] != "name" || evalName[1] != "eval") return false; - - var compileCall = ast[2][0]; - if (!compileCall || compileCall[0] != "call") return false; - - var compileMethod = compileCall[1]; - if (!compileMethod || compileMethod[0] != "dot" || compileMethod[2] != "compile") return false; - - var jscexName = compileMethod[1]; - if (!jscexName || jscexName[0] != "name" || jscexName[1] != compile.rootName) return false; - - var builder = compileCall[2][0]; - if (!builder || builder[0] != "string") return false; - - var func = compileCall[2][1]; - if (!func || func[0] != "function") return false; - - return true; - } - - function compileJscexPattern(ast, seedProvider, codeWriter, commentWriter) { - - var builderName = ast[2][0][2][0][1]; - var funcAst = ast[2][0][2][1]; - - var jscexTreeGenerator = new JscexTreeGenerator(builderName, seedProvider); - var jscexAst = jscexTreeGenerator.generate(funcAst); - - commentWriter.write(builderName + " << "); - var codeGenerator = new CodeGenerator(builderName, seedProvider, codeWriter, commentWriter); - codeGenerator.generate(funcAst[2], jscexAst); - } - - var JscexTreeGenerator = function (builderName, seedProvider) { - this._binder = Jscex.binders[builderName]; - this._seedProvider = seedProvider; - } - JscexTreeGenerator.prototype = { - - generate: function (ast) { - - var params = ast[2], statements = ast[3]; - - var rootAst = { type: "delay", stmts: [] }; - - this._visitStatements(statements, rootAst.stmts); - - return rootAst; - }, - - _getBindInfo: function (stmt) { - - var type = stmt[0]; - if (type == "stat") { - var expr = stmt[1]; - if (expr[0] == "call") { - var callee = expr[1]; - if (callee[0] == "name" && callee[1] == this._binder && expr[2].length == 1) { - return { - expression: expr[2][0], - argName: "", - assignee: null - }; - } - } else if (expr[0] == "assign") { - var assignee = expr[2]; - expr = expr[3]; - if (expr[0] == "call") { - var callee = expr[1]; - if (callee[0] == "name" && callee[1] == this._binder && expr[2].length == 1) { - return { - expression: expr[2][0], - argName: "_result_$", - assignee: assignee - }; - } - } - } - } else if (type == "var") { - var defs = stmt[1]; - if (defs.length == 1) { - var item = defs[0]; - var name = item[0]; - var expr = item[1]; - if (expr && expr[0] == "call") { - var callee = expr[1]; - if (callee[0] == "name" && callee[1] == this._binder && expr[2].length == 1) { - return { - expression: expr[2][0], - argName: name, - assignee: null - }; - } - } - } - } else if (type == "return") { - var expr = stmt[1]; - if (expr && expr[0] == "call") { - var callee = expr[1]; - if (callee[0] == "name" && callee[1] == this._binder && expr[2].length == 1) { - return { - expression: expr[2][0], - argName: "_result_$", - assignee: "return" - }; - } - } - } - - return null; - }, - - _visitStatements: function (statements, stmts, index) { - if (arguments.length <= 2) index = 0; - - if (index >= statements.length) { - stmts.push({ type: "normal" }); - return this; - } - - var currStmt = statements[index]; - var bindInfo = this._getBindInfo(currStmt); - - if (bindInfo) { - var bindStmt = { type: "bind", info: bindInfo }; - stmts.push(bindStmt); - - if (bindInfo.assignee != "return") { - bindStmt.stmts = []; - this._visitStatements(statements, bindStmt.stmts, index + 1); - } - - } else { - var type = currStmt[0]; - if (type == "return" || type == "break" || type == "continue" || type == "throw") { - - stmts.push({ type: type, stmt: currStmt }); - - } else if (type == "if" || type == "try" || type == "for" || type == "do" - || type == "while" || type == "switch" || type == "for-in") { - - var newStmt = this._visit(currStmt); - - if (newStmt.type == "raw") { - stmts.push(newStmt); - this._visitStatements(statements, stmts, index + 1); - } else { - var isLast = (index == statements.length - 1); - if (isLast) { - stmts.push(newStmt); - } else { - - var combineStmt = { - type: "combine", - first: { type: "delay", stmts: [newStmt] }, - second: { type: "delay", stmts: [] } - }; - stmts.push(combineStmt); - - this._visitStatements(statements, combineStmt.second.stmts, index + 1); - } - } - - } else { - - stmts.push({ type: "raw", stmt: currStmt }); - - this._visitStatements(statements, stmts, index + 1); - } - } - - return this; - }, - - _visit: function (ast) { - - var type = ast[0]; - - function throwUnsupportedError() { - throw new Error('"' + type + '" is not currently supported.'); - } - - var visitor = this._visitors[type]; - - if (visitor) { - return visitor.call(this, ast); - } else { - throwUnsupportedError(); - } - }, - - _visitBody: function (ast, stmts) { - if (ast[0] == "block") { - this._visitStatements(ast[1], stmts); - } else { - this._visitStatements([ast], stmts); - } - }, - - _noBinding: function (stmts) { - switch (stmts[stmts.length - 1].type) { - case "normal": - case "return": - case "break": - case "throw": - case "continue": - return true; - } - - return false; - }, - - _collectCaseStatements: function (cases, index) { - var res = []; - - for (var i = index; i < cases.length; i++) { - var rawStmts = cases[i][1]; - for (var j = 0; j < rawStmts.length; j++) { - if (rawStmts[j][0] == "break") { - return res - } - - res.push(rawStmts[j]); - } - } - - return res; - }, - - _visitors: { - - "for": function (ast) { - var bodyStmts = []; - var body = ast[4]; - this._visitBody(body, bodyStmts); - - if (this._noBinding(bodyStmts)) { - return { type: "raw", stmt: ast }; - } - - var delayStmt = { type: "delay", stmts: [] }; - - var setup = ast[1]; - if (setup) { - delayStmt.stmts.push({ type: "raw", stmt: setup }); - } - - var forStmt = { type: "for", bodyStmt: { type: "delay", stmts: bodyStmts } }; - delayStmt.stmts.push(forStmt); - - var condition = ast[2]; - if (condition) { - forStmt.condition = condition; - } - - var update = ast[3]; - if (update) { - forStmt.update = update; - } - - return delayStmt; - }, - - "for-in": function (ast) { - - var body = ast[4]; - - var bodyStmts = []; - this._visitBody(body, bodyStmts); - - if (this._noBinding(bodyStmts)) { - return { type: "raw", stmt: ast }; - } - - var forInStmt = { type: "for-in", bodyStmts: bodyStmts, obj: ast[3] }; - - var argName = ast[2][1]; // ast[2] == ["name", m] - if (ast[1][0] == "var") { - forInStmt.argName = argName; - } else { - var keyVar = "_forInKey_$" + this._seedProvider.next("forInKey"); - forInStmt.argName = keyVar; - forInStmt.bodyStmts.unshift({ - type: "raw", - stmt: Jscex.parse(argName + " = " + keyVar + ";")[1][0] - }); - } - - return forInStmt; - }, - - "while": function (ast) { - - var bodyStmts = []; - var body = ast[2]; - this._visitBody(body, bodyStmts); - - if (this._noBinding(bodyStmts)) { - return { type: "raw", stmt: ast } - } - - var loopStmt = { type: "while", bodyStmt: { type: "delay", stmts: bodyStmts } }; - - var condition = ast[1]; - loopStmt.condition = condition; - - return loopStmt; - }, - - "do": function (ast) { - - var bodyStmts = []; - var body = ast[2]; - this._visitBody(body, bodyStmts); - - if (this._noBinding(bodyStmts)) { - return { type: "raw", stmt: ast }; - } - - var doStmt = { - type: "do", - bodyStmt: { type: "delay", stmts: bodyStmts }, - condition: ast[1] - }; - - return doStmt; - }, - - "switch": function (ast) { - var noBinding = true; - - var switchStmt = { type: "switch", item: ast[1], caseStmts: [] }; - - var cases = ast[2]; - for (var i = 0; i < cases.length; i++) { - var caseStmt = { item: cases[i][0], stmts: [] }; - switchStmt.caseStmts.push(caseStmt); - - var statements = this._collectCaseStatements(cases, i); - this._visitStatements(statements, caseStmt.stmts); - noBinding = noBinding && this._noBinding(caseStmt.stmts); - } - - if (noBinding) { - return { type: "raw", stmt: ast }; - } else { - return switchStmt; - } - }, - - "if": function (ast) { - - var noBinding = true; - - var ifStmt = { type: "if", conditionStmts: [] }; - - var currAst = ast; - while (true) { - var condition = currAst[1]; - var condStmt = { cond: condition, stmts: [] }; - ifStmt.conditionStmts.push(condStmt); - - var thenPart = currAst[2]; - this._visitBody(thenPart, condStmt.stmts); - - noBinding = noBinding && this._noBinding(condStmt.stmts); - - var elsePart = currAst[3]; - if (elsePart && elsePart[0] == "if") { - currAst = elsePart; - } else { - break; - } - } - - var elsePart = currAst[3]; - if (elsePart) { - ifStmt.elseStmts = []; - - this._visitBody(elsePart, ifStmt.elseStmts); - - noBinding = noBinding && this._noBinding(ifStmt.elseStmts); - } - - if (noBinding) { - return { type: "raw", stmt: ast }; - } else { - return ifStmt; - } - }, - - "try": function (ast, stmts) { - - var bodyStmts = []; - var bodyStatements = ast[1]; - this._visitStatements(bodyStatements, bodyStmts); - - var noBinding = this._noBinding(bodyStmts) - - var tryStmt = { type: "try", bodyStmt: { type: "delay", stmts: bodyStmts } }; - - var catchClause = ast[2]; - if (catchClause) { - var exVar = catchClause[0]; - tryStmt.exVar = exVar; - tryStmt.catchStmts = []; - - this._visitStatements(catchClause[1], tryStmt.catchStmts); - - noBinding = noBinding && this._noBinding(tryStmt.catchStmts); - } - - var finallyStatements = ast[3]; - if (finallyStatements) { - tryStmt.finallyStmt = { type: "delay", stmts: [] }; - - this._visitStatements(finallyStatements, tryStmt.finallyStmt.stmts); - - noBinding = noBinding && this._noBinding(tryStmt.finallyStmt.stmts); - } - - if (noBinding) { - return { type: "raw", stmt: ast }; - } else { - return tryStmt; - } - } - } - } - - var CodeGenerator = function (builderName, seedProvider, codeWriter, commentWriter) { - this._builderName = builderName; - this._binder = Jscex.binders[builderName]; - this._seedProvider = seedProvider; - - this._codeWriter = codeWriter; - this._commentWriter = commentWriter; - } - CodeGenerator.prototype = { - - _code: function () { - this._codeWriter.write.apply(this._codeWriter, arguments); - return this; - }, - - _codeLine: function () { - this._codeWriter.writeLine.apply(this._codeWriter, arguments); - return this; - }, - - _codeIndents: function () { - this._codeWriter.writeIndents(); - return this; - }, - - _codeIndentLevel: function (diff) { - this._codeWriter.addIndentLevel(diff); - return this; - }, - - _comment: function () { - this._commentWriter.write.apply(this._commentWriter, arguments); - return this; - }, - - _commentLine: function () { - this._commentWriter.writeLine.apply(this._commentWriter, arguments); - return this; - }, - - _commentIndents: function () { - this._commentWriter.writeIndents(); - return this; - }, - - _commentIndentLevel: function (diff) { - this._commentWriter.addIndentLevel(diff); - return this; - }, - - _both: function () { - this._codeWriter.write.apply(this._codeWriter, arguments); - this._commentWriter.write.apply(this._commentWriter, arguments); - - return this; - }, - - _bothLine: function () { - this._codeWriter.writeLine.apply(this._codeWriter, arguments); - this._commentWriter.writeLine.apply(this._commentWriter, arguments); - - return this; - }, - - _bothIndents: function () { - this._codeWriter.writeIndents(); - this._commentWriter.writeIndents(); - - return this; - }, - - _bothIndentLevel: function (diff) { - this._codeWriter.addIndentLevel(diff); - this._commentWriter.addIndentLevel(diff); - - return this; - }, - - _newLine: function () { - this._codeWriter.writeLine.apply(this._codeWriter, arguments); - this._commentWriter.writeLine(); // To Remove - return this; - }, - - generate: function (params, jscexAst) { - this._normalMode = false; - this._builderVar = "_builder_$" + this._seedProvider.next("builderId"); - - this._codeLine("(function (" + params.join(", ") + ") {")._commentLine("function (" + params.join(", ") + ") {"); - this._bothIndentLevel(1); - - this._codeIndents()._newLine("var " + this._builderVar + " = " + compile.rootName + ".builders[" + stringify(this._builderName) + "];"); - - this._codeIndents()._newLine("return " + this._builderVar + ".Start(this,"); - this._codeIndentLevel(1); - - this._pos = { }; - - this._bothIndents()._visitJscex(jscexAst)._newLine(); - this._codeIndentLevel(-1); - - this._codeIndents()._newLine(");"); - this._bothIndentLevel(-1); - - this._bothIndents()._code("})")._comment("}"); - }, - - _visitJscex: function (ast) { - this._jscexVisitors[ast.type].call(this, ast); - return this; - }, - - _visitRaw: function (ast) { - var type = ast[0]; - - var visitor = this._rawVisitors[type]; - if (visitor) { - visitor.call(this, ast); - } else { - throw new Error('"' + type + '" is not currently supported.'); - } - - return this; - }, - - _visitJscexStatements: function (statements) { - for (var i = 0; i < statements.length; i++) { - var stmt = statements[i]; - - if (stmt.type == "raw" || stmt.type == "if" || stmt.type == "switch") { - this._bothIndents()._visitJscex(stmt)._newLine(); - } else if (stmt.type == "delay") { - this._visitJscexStatements(stmt.stmts); - } else { - this._bothIndents()._code("return ")._visitJscex(stmt)._newLine(";"); - } - } - }, - - _visitRawStatements: function (statements) { - for (var i = 0; i < statements.length; i++) { - var s = statements[i]; - - this._bothIndents()._visitRaw(s)._bothLine(); - - switch (s[0]) { - case "break": - case "return": - case "continue": - case "throw": - return; - } - } - }, - - _visitRawBody: function (body) { - if (body[0] == "block") { - this._visitRaw(body); - } else { - this._bothLine(); - this._bothIndentLevel(1); - - this._bothIndents()._visitRaw(body); - this._bothIndentLevel(-1); - } - - return this; - }, - - _visitRawFunction: function (ast) { - var funcName = ast[1] || ""; - var args = ast[2]; - var statements = ast[3]; - - this._bothLine("function " + funcName + "(" + args.join(", ") + ") {") - this._bothIndentLevel(1); - - var currInFunction = this._pos.inFunction; - this._pos.inFunction = true; - - this._visitRawStatements(statements); - this._bothIndentLevel(-1); - - this._pos.inFunction = currInFunction; - - this._bothIndents()._both("}"); - }, - - _jscexVisitors: { - "delay": function (ast) { - if (ast.stmts.length == 1) { - var subStmt = ast.stmts[0]; - switch (subStmt.type) { - case "delay": - case "combine": - case "normal": - case "break": - case "continue": - case "for": - case "for-in": - case "while": - case "do": - case "try": - this._visitJscex(subStmt); - return; - case "return": - if (!subStmt.stmt[1]) { - this._visitJscex(subStmt); - return; - } - } - } - - this._newLine(this._builderVar + ".Delay(function () {"); - this._codeIndentLevel(1); - - this._visitJscexStatements(ast.stmts); - this._codeIndentLevel(-1); - - this._codeIndents()._code("})"); - }, - - "combine": function (ast) { - this._newLine(this._builderVar + ".Combine("); - this._codeIndentLevel(1); - - this._bothIndents()._visitJscex(ast.first)._newLine(","); - this._bothIndents()._visitJscex(ast.second)._newLine(); - this._codeIndentLevel(-1); - - this._codeIndents()._code(")"); - }, - - "for": function (ast) { - if (ast.condition) { - this._codeLine(this._builderVar + ".For(function () {") - ._commentLine("for ("); - this._codeIndentLevel(1); - - this._bothIndents() - ._code("return ") - ._comment("; ") - ._visitRaw(ast.condition) - ._newLine(";"); - this._codeIndentLevel(-1); - - this._bothIndents()._code("}, "); - } else { - this._code(this._builderVar + ".For(null, ") - ._comment("for (; "); - } - - if (ast.update) { - this._newLine("function () {"); - this._codeIndentLevel(1); - - this._bothIndents() - ._comment("; ") - ._visitRaw(ast.update) - ._codeLine(";") - ._commentLine(") {"); - this._codeIndentLevel(-1); - - this._codeIndents()._newLine("},"); - } else { - this._codeLine("null,")._commentLine("; ) {"); - } - this._bothIndentLevel(1); - - this._bothIndents()._visitJscex(ast.bodyStmt)._newLine(); - this._bothIndentLevel(-1); - - this._bothIndents()._code(")")._comment("}"); - }, - - "for-in": function (ast) { - this._code(this._builderVar + ".ForIn(") - ._comment("for (var " + ast.argName + " in ") - ._visitRaw(ast.obj) - ._codeLine(", function (" + ast.argName + ") {") - ._commentLine(") {"); - this._bothIndentLevel(1); - - this._visitJscexStatements(ast.bodyStmts); - this._bothIndentLevel(-1); - - this._bothIndents()._code("})")._comment("}"); - }, - - "while": function (ast) { - this._newLine(this._builderVar + ".While(function () {"); - this._codeIndentLevel(1); - - this._bothIndents() - ._code("return ") - ._comment("while (") - ._visitRaw(ast.condition) - ._codeLine(";") - ._commentLine(") {"); - this._codeIndentLevel(-1); - - this._codeIndents()._newLine("},"); - this._bothIndentLevel(1); - - this._bothIndents()._visitJscex(ast.bodyStmt)._newLine(); - this._bothIndentLevel(-1); - - this._bothIndents()._code(")")._comment("}"); - }, - - "do": function (ast) { - this._codeLine(this._builderVar + ".Do(")._commentLine("do {"); - this._bothIndentLevel(1); - - this._bothIndents()._visitJscex(ast.bodyStmt)._newLine(","); - this._commentIndentLevel(-1); - - this._codeIndents()._newLine("function () {"); - this._codeIndentLevel(1); - - this._bothIndents() - ._code("return ") - ._comment("} while (") - ._visitRaw(ast.condition) - ._codeLine(";") - ._commentLine(");"); - this._codeIndentLevel(-1); - - this._codeIndents()._newLine("}"); - this._codeIndentLevel(-1); - - this._codeIndents()._code(")"); - }, - - "raw": function (ast) { - this._visitRaw(ast.stmt, true); - }, - - "bind": function (ast) { - var info = ast.info; - - var commentPrefix = ""; - if (info.assignee == "return") { - commentPrefix = "return "; - } else if (info.argName != "") { - commentPrefix = "var " + info.argName + " = "; - } - - this._code(this._builderVar + ".Bind(")._comment(commentPrefix + this._binder + "(")._visitRaw(info.expression)._comment(");")._newLine(", function (" + info.argName + ") {"); - this._codeIndentLevel(1); - - if (info.assignee == "return") { - this._codeIndents() - ._newLine("return " + this._builderVar + ".Return(" + info.argName + ");"); - } else { - if (info.assignee) { - this._bothIndents() - ._visitRaw(info.assignee)._bothLine(" = " + info.argName + ";"); - } - - this._visitJscexStatements(ast.stmts); - } - this._codeIndentLevel(-1); - - this._codeIndents() - ._code("})"); - }, - - "if": function (ast) { - - for (var i = 0; i < ast.conditionStmts.length; i++) { - var stmt = ast.conditionStmts[i]; - - this._both("if (")._visitRaw(stmt.cond)._bothLine(") {"); - this._bothIndentLevel(1); - - this._visitJscexStatements(stmt.stmts); - this._bothIndentLevel(-1); - - if (i < ast.conditionStmts.length - 1 || ast.elseStmts) { - this._bothIndents()._both("} else "); - } else { - this._bothIndents()._code("} else ")._comment("}"); - } - } - - if (ast.elseStmts) { - this._bothLine("{"); - this._bothIndentLevel(1); - } else { - this._newLine("{"); - this._codeIndentLevel(1); - } - - if (ast.elseStmts) { - this._visitJscexStatements(ast.elseStmts); - } else { - this._codeIndents() - ._newLine("return " + this._builderVar + ".Normal();"); - } - - if (ast.elseStmts) { - this._bothIndentLevel(-1); - } else { - this._codeIndentLevel(-1); - } - - if (ast.elseStmts) { - this._bothIndents() - ._both("}"); - } else { - this._codeIndents() - ._code("}"); - } - }, - - "switch": function (ast) { - this._both("switch (")._visitRaw(ast.item)._bothLine(") {"); - this._bothIndentLevel(1); - - for (var i = 0; i < ast.caseStmts.length; i++) { - var caseStmt = ast.caseStmts[i]; - - if (caseStmt.item) { - this._bothIndents() - ._both("case ")._visitRaw(caseStmt.item)._bothLine(":"); - } else { - this._bothIndents()._bothLine("default:"); - } - this._bothIndentLevel(1); - - this._visitJscexStatements(caseStmt.stmts); - this._bothIndentLevel(-1); - } - - this._bothIndents()._code("}"); - }, - - "try": function (ast) { - this._codeLine(this._builderVar + ".Try(")._commentLine("try {"); - this._bothIndentLevel(1); - - this._bothIndents()._visitJscex(ast.bodyStmt)._newLine(","); - this._commentIndentLevel(-1); - - if (ast.catchStmts) { - this._bothIndents() - ._codeLine("function (" + ast.exVar + ") {") - ._commentLine("} catch (" + ast.exVar + ") {"); - this._bothIndentLevel(1); - - this._visitJscexStatements(ast.catchStmts); - this._bothIndentLevel(-1); - - this._bothIndents()._codeLine("},"); - if (ast.finallyStmt) { - this._commentLine("} finally {"); - } else { - this._commentLine("}"); - } - } else { - this._bothIndents()._codeLine("null,")._commentLine("} finally {"); - } - - if (ast.finallyStmt) { - this._commentIndentLevel(1); - this._bothIndents()._visitJscex(ast.finallyStmt)._newLine(); - this._commentIndentLevel(-1); - } else { - this._codeIndents()._newLine("null"); - } - this._codeIndentLevel(-1); - - this._codeIndents()._code(")"); - if (ast.finallyStmt) { - this._commentIndents()._comment("}"); - } - }, - - "normal": function (ast) { - this._code(this._builderVar + ".Normal()"); - }, - - "throw": function (ast) { - this - ._code(this._builderVar + ".Throw(") - ._comment("throw ") - ._visitRaw(ast.stmt[1]) - ._code(")")._comment(";"); - }, - - "break": function (ast) { - this._code(this._builderVar + ".Break()")._comment("break;"); - }, - - "continue": function (ast) { - this._code(this._builderVar + ".Continue()")._comment("continue;"); - }, - - "return": function (ast) { - this._code(this._builderVar + ".Return(")._comment("return"); - if (ast.stmt[1]) { - this._comment(" ")._visitRaw(ast.stmt[1]); - } - - this._code(")")._comment(";"); - } - }, - - _rawVisitors: { - "var": function (ast) { - this._both("var "); - - var items = ast[1]; - for (var i = 0; i < items.length; i++) { - this._both(items[i][0]); - if (items[i].length > 1) { - this._both(" = ")._visitRaw(items[i][1]); - } - if (i < items.length - 1) this._both(", "); - } - - this._both(";"); - }, - - "seq": function (ast, noBracket) { - var left = ast[1]; - var right = ast[2]; - - if (!noBracket) this._both("("); - - this._visitRaw(left); - this._both(", "); - - if (right[0] == "seq") { - arguments.callee.call(this, right, true); - } else { - this._visitRaw(right); - } - - if (!noBracket) this._both(")"); - }, - - "binary": function (ast) { - var op = ast[1], left = ast[2], right = ast[3]; - - if (getPrecedence(ast) < getPrecedence(left)) { - this._both("(")._visitRaw(left)._both(") "); - } else { - this._visitRaw(left)._both(" "); - } - - this._both(op); - - if (getPrecedence(ast) <= getPrecedence(right)) { - this._both(" (")._visitRaw(right)._both(")"); - } else { - this._both(" ")._visitRaw(right); - } - }, - - "sub": function (ast) { - var prop = ast[1], index = ast[2]; - - if (getPrecedence(ast) < getPrecedence(prop)) { - this._both("(")._visitRaw(prop)._both(")[")._visitRaw(index)._both("]"); - } else { - this._visitRaw(prop)._both("[")._visitRaw(index)._both("]"); - } - }, - - "unary-postfix": function (ast) { - var op = ast[1]; - var item = ast[2]; - - if (getPrecedence(ast) <= getPrecedence(item)) { - this._both("(")._visitRaw(item)._both(")"); - } else { - this._visitRaw(item); - } - - this._both(" " + op); - }, - - "unary-prefix": function (ast) { - var op = ast[1]; - var item = ast[2]; - - this._both(op + " "); - - if (getPrecedence(ast) < getPrecedence(item)) { - this._both("(")._visitRaw(item)._both(")"); - } else { - this._visitRaw(item); - } - }, - - "assign": function (ast) { - var op = ast[1]; - var name = ast[2]; - var value = ast[3]; - - if (name[0] == "assign") { - this._both("(")._visitRaw(name)._both(")"); - } else { - this._visitRaw(name); - } - - if ((typeof op) == "string") { - this._both(" " + op + "= "); - } else { - this._both(" = "); - } - - this._visitRaw(value); - }, - - "stat": function (ast) { - this._visitRaw(ast[1])._both(";"); - }, - - "dot": function (ast) { - var left = ast[1]; - var right = ast[2]; - - if (getPrecedence(ast) < getPrecedence(left)) { - this._both("(")._visitRaw(left)._both(").")._both(right); - } else { - this._visitRaw(left)._both(".")._both(right); - } - }, - - "new": function (ast) { - var ctor = ast[1]; - - this._both("new ")._visitRaw(ctor)._both("("); - - var args = ast[2]; - for (var i = 0, len = args.length; i < len; i++) { - this._visitRaw(args[i]); - if (i < len - 1) this._both(", "); - } - - this._both(")"); - }, - - "call": function (ast) { - - if (isJscexPattern(ast)) { - compileJscexPattern(ast, this._seedProvider, this._codeWriter, this._commentWriter); - } else { - var caller = ast[1]; - - var invalidBind = (caller[0] == "name") && (caller[1] == this._binder); - // throw? - - if (getPrecedence(ast) < getPrecedence(caller)) { - this._both("(")._visitRaw(caller)._both(")"); - } else { - this._visitRaw(caller); - } - - this._both("("); - - var args = ast[2]; - for (var i = 0; i < args.length; i++) { - this._visitRaw(args[i]); - if (i < args.length - 1) this._both(", "); - } - - this._both(")"); - } - }, - - "name": function (ast) { - this._both(ast[1]); - }, - - "object": function (ast) { - var items = ast[1]; - if (items.length <= 0) { - this._both("{ }"); - } else { - this._bothLine("{"); - this._bothIndentLevel(1); - - for (var i = 0; i < items.length; i++) { - this._bothIndents() - ._both(stringify(items[i][0]) + ": ") - ._visitRaw(items[i][1]); - - if (i < items.length - 1) { - this._bothLine(","); - } else { - this._bothLine(""); - } - } - - this._bothIndentLevel(-1); - this._bothIndents()._both("}"); - } - }, - - "array": function (ast) { - this._both("["); - - var items = ast[1]; - for (var i = 0; i < items.length; i++) { - this._visitRaw(items[i]); - if (i < items.length - 1) this._both(", "); - } - - this._both("]"); - }, - - "num": function (ast) { - this._both(ast[1]); - }, - - "regexp": function (ast) { - this._both("/" + ast[1] + "/" + ast[2]); - }, - - "string": function (ast) { - this._both(stringify(ast[1])); - }, - - "function": function (ast) { - this._visitRawFunction(ast); - }, - - "defun": function (ast) { - this._visitRawFunction(ast); - }, - - "for": function (ast) { - this._both("for ("); - - var setup = ast[1]; - if (setup) { - this._visitRaw(setup); - if (setup[0] != "var") { - this._both("; "); - } else { - this._both(" "); - } - } else { - this._both("; "); - } - - var condition = ast[2]; - if (condition) this._visitRaw(condition); - this._both("; "); - - var update = ast[3]; - if (update) this._visitRaw(update); - this._both(") "); - - var currInLoop = this._pos.inLoop; - this._pos.inLoop = true; - - var body = ast[4]; - this._visitRawBody(body); - - this._pos.inLoop = currInLoop; - }, - - "for-in": function (ast) { - this._both("for ("); - - var declare = ast[1]; - if (declare[0] == "var") { // declare == ["var", [["m"]]] - this._both("var " + declare[1][0][0]); - } else { - this._visitRaw(declare); - } - - this._both(" in ")._visitRaw(ast[3])._both(") "); - - var body = ast[4]; - this._visitRawBody(body); - }, - - "block": function (ast) { - this._bothLine("{") - this._bothIndentLevel(1); - - this._visitRawStatements(ast[1]); - this._bothIndentLevel(-1); - - this._bothIndents() - ._both("}"); - }, - - "while": function (ast) { - var condition = ast[1]; - var body = ast[2]; - - var currInLoop = this._pos.inLoop; - this._pos.inLoop = true; - - this._both("while (")._visitRaw(condition)._both(") ")._visitRawBody(body); - - this._pos.inLoop = currInLoop; - }, - - "do": function (ast) { - var condition = ast[1]; - var body = ast[2]; - - var currInLoop = this._pos.inLoop; - this._pos.inLoop = true; - - this._both("do ")._visitRawBody(body); - - this._pos.inLoop = currInLoop; - - if (body[0] == "block") { - this._both(" "); - } else { - this._bothLine() - ._bothIndents(); - } - - this._both("while (")._visitRaw(condition)._both(");"); - }, - - "if": function (ast) { - var condition = ast[1]; - var thenPart = ast[2]; - - this._both("if (")._visitRaw(condition)._both(") ")._visitRawBody(thenPart); - - var elsePart = ast[3]; - if (elsePart) { - if (thenPart[0] == "block") { - this._both(" "); - } else { - this._bothLine("") - ._bothIndents(); - } - - if (elsePart[0] == "if") { - this._both("else ")._visitRaw(elsePart); - } else { - this._both("else ")._visitRawBody(elsePart); - } - } - }, - - "break": function (ast) { - if (this._pos.inLoop || this._pos.inSwitch) { - this._both("break;"); - } else { - this._code("return ")._visitJscex({ type: "break", stmt: ast })._code(";"); - } - }, - - "continue": function (ast) { - if (this._pos.inLoop) { - this._both("continue;"); - } else { - this._code("return ")._visitJscex({ type: "continue", stmt: ast })._code(";"); - } - }, - - "return": function (ast) { - if (this._pos.inFunction) { - this._both("return"); - var value = ast[1]; - if (value) this._both(" ")._visitRaw(value); - this._both(";"); - } else { - this._code("return ")._visitJscex({ type: "return", stmt: ast })._code(";"); - } - }, - - "throw": function (ast) { - var pos = this._pos; - if (pos.inTry || pos.inFunction) { - this._both("throw ")._visitRaw(ast[1])._both(";"); - } else { - this._code("return ")._visitJscex({ type: "throw", stmt: ast })._code(";"); - } - }, - - "conditional": function (ast) { - this._both("(")._visitRaw(ast[1])._both(") ? (")._visitRaw(ast[2])._both(") : (")._visitRaw(ast[3])._both(")"); - }, - - "try": function (ast) { - - this._bothLine("try {"); - this._bothIndentLevel(1); - - var currInTry = this._pos.inTry; - this._pos.inTry = true; - - this._visitRawStatements(ast[1]); - this._bothIndentLevel(-1); - - this._pos.inTry = currInTry; - - var catchClause = ast[2]; - var finallyStatements = ast[3]; - - if (catchClause) { - this._bothIndents() - ._bothLine("} catch (" + catchClause[0] + ") {") - this._bothIndentLevel(1); - - this._visitRawStatements(catchClause[1]); - this._bothIndentLevel(-1); - } - - if (finallyStatements) { - this._bothIndents() - ._bothLine("} finally {"); - this._bothIndentLevel(1); - - this._visitRawStatements(finallyStatements); - this._bothIndentLevel(-1); - } - - this._bothIndents() - ._both("}"); - }, - - "switch": function (ast) { - this._both("switch (")._visitRaw(ast[1])._bothLine(") {"); - this._bothIndentLevel(1); - - var currInSwitch = this._pos.inSwitch; - this._pos.inSwitch = true; - - var cases = ast[2]; - for (var i = 0; i < cases.length; i++) { - var c = cases[i]; - this._bothIndents(); - - if (c[0]) { - this._both("case ")._visitRaw(c[0])._bothLine(":"); - } else { - this._bothLine("default:"); - } - this._bothIndentLevel(1); - - this._visitRawStatements(c[1]); - this._bothIndentLevel(-1); - } - this._bothIndentLevel(-1); - - this._pos.inSwitch = currInSwitch; - - this._bothIndents() - ._both("}"); - } - } - }; - - var merge = function (commentLines, codeLines) { - var length = commentLines.length; - - var maxShift = 0; - - for (var i = 0; i < length; i++) { - var matches = codeLines[i].match(" +"); - var spaceLength = matches ? matches[0].length : 0; - - var shift = commentLines[i].length - spaceLength + 10; - if (shift > maxShift) { - maxShift = shift; - } - } - - var shiftBuffer = new Array(maxShift); - for (var i = 0; i < maxShift; i++) { - shiftBuffer[i] = " "; - } - - var shiftSpaces = shiftBuffer.join(""); - - var buffer = []; - for (var i = 0; i < length; i++) { - var comment = commentLines[i]; - if (comment.replace(/ +/g, "").length > 0) { - comment = "/* " + comment + " */ "; - } - - var code = shiftSpaces + codeLines[i]; - - buffer.push(comment); - buffer.push(code.substring(comment.length)); - buffer.push("\n"); - } - - return buffer.join(""); - } - - var compile = function (builderName, func, separateCodeAndComment) { - var funcCode = func.toString(); - var evalCode = "eval(" + compile.rootName + ".compile(" + stringify(builderName) + ", " + funcCode + "))" - var evalCodeAst = Jscex.parse(evalCode); - - var codeWriter = new CodeWriter(); - var commentWriter = new CodeWriter(); - - // [ "toplevel", [ [ "stat", [ "call", ... ] ] ] ] - var evalAst = evalCodeAst[1][0][1]; - compileJscexPattern(evalAst, new SeedProvider(), codeWriter, commentWriter); - - if (separateCodeAndComment) { - return { - code: codeWriter.lines.join("\n"), - codeLines: codeWriter.lines, - comment: commentWriter.lines.join("\n"), - commentLines: commentWriter.lines - }; - } else { - var newCode = merge(commentWriter.lines, codeWriter.lines); - Jscex.logger.debug("// Original: \r\n" + funcCode + "\r\n\r\n// Jscexified: \r\n" + newCode + "\r\n"); - - return codeGenerator(newCode); - } - } - - compile.rootName = "Jscex"; - - // CommonJS - var isCommonJS = !!(typeof require === "function" && typeof module !== "undefined" && module.exports); - // CommonJS AMD - var isAmd = !!(typeof require === "function" && typeof define === "function" && define.amd); - - var defineModule = function () { - Jscex.define({ - name: "jit", - version: "0.6.6", - exports: isCommonJS && module.exports, - require: isCommonJS && require, - autoloads: [ "parser" ], - dependencies: { parser: "~0.6.5" }, - init: function () { - Jscex.compile = compile; - } - }); - } - - if (isCommonJS) { - try { - Jscex = require("./jscex"); - } catch (ex) { - Jscex = require("jscex"); - } - - defineModule(); - } else if (isAmd) { - require(["jscex"], function (jscex) { - Jscex = jscex; - defineModule(); - }); - } else { - var Fn = Function, global = Fn('return this')(); - if (!global.Jscex) { - throw new Error('Missing the root object, please load "jscex" component first.'); - } - - Jscex = global.Jscex; - defineModule(); - } -})();
