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stringify.js
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570 lines (559 loc) · 13.4 KB
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if (!sqlParser) {
sqlParser = {};
}
function Sql() {
this.buffer = '';
}
sqlParser.stringify = function(ast) {
var sql = new Sql();
sql.travelMain(ast);
return sql.buffer;
};
Sql.prototype.travel = function(ast) {
if (!ast) return;
if (typeof ast === 'string') {
return this.append(ast);
}
var processor = this['travel' + ast.type];
processor.call(this, ast);
};
var noSuffixFlag = false;
Sql.prototype.appendKeyword = function(keyword, noPrefix, noSuffix) {
if (noSuffixFlag) {
noPrefix = true;
noSuffixFlag = false;
}
if (noPrefix) {
this.buffer += keyword.toUpperCase();
} else {
this.buffer += ' ' + keyword.toUpperCase();
}
if (noSuffix) {
noSuffixFlag = true;
}
};
Sql.prototype.append = function(word, noPrefix, noSuffix) {
if (noSuffixFlag) {
noPrefix = true;
noSuffixFlag = false;
}
if (noPrefix) {
this.buffer += word;
} else {
this.buffer += ' ' + word;
}
if (noSuffix) {
noSuffixFlag = true;
}
};
Sql.prototype.travelMain = function(ast) {
this.travel(ast.value);
if (ast.hasSemicolon) {
this.append(';', true);
}
};
Sql.prototype.travelSelect = function(ast) {
this.appendKeyword('select');
if (ast.distinctOpt) {
this.appendKeyword(ast.distinctOpt);
}
if (ast.highPriorityOpt) {
this.appendKeyword(ast.highPriorityOpt);
}
if (ast.maxStateMentTimeOpt) {
this.append('MAX_STATEMENT_TIME = ' + ast.maxStateMentTimeOpt);
}
if (ast.straightJoinOpt) {
this.appendKeyword(ast.straightJoinOpt);
}
if (ast.sqlSmallResultOpt) {
this.appendKeyword(ast.sqlSmallResultOpt);
}
if (ast.sqlBigResultOpt) {
this.appendKeyword(ast.sqlBigResultOpt);
}
if (ast.sqlBufferResultOpt) {
this.appendKeyword(ast.sqlBufferResultOpt);
}
if (ast.sqlCacheOpt) {
this.appendKeyword(ast.sqlCacheOpt);
}
if (ast.sqlCalcFoundRowsOpt) {
this.appendKeyword(ast.sqlCalcFoundRowsOpt);
}
if (ast.selectItems) {
this.travelSelectExpr(ast.selectItems);
}
if (ast.from) {
this.appendKeyword('from');
this.travel(ast.from);
}
if (ast.partition) {
this.travel(ast.partition);
}
if (ast.where) {
this.appendKeyword('where');
this.travel(ast.where);
}
if (ast.groupBy) {
this.travel(ast.groupBy);
}
if (ast.having) {
this.appendKeyword('having');
this.travel(ast.having);
}
if (ast.orderBy) {
this.travel(ast.orderBy);
}
if (ast.limit) {
this.travel(ast.limit);
}
if (ast.procedure) {
this.appendKeyword('procedure');
this.travel(ast.procedure);
}
if (ast.updateLockMode) {
this.appendKeyword(ast.updateLockMode);
}
};
Sql.prototype.travelSelectExpr = function(ast) {
var exprList = ast.value;
for (var i = 0; i < exprList.length; i++) {
if (typeof ast === 'string') {
this.append(exprList[i]);
} else {
this.travel(exprList[i]);
if (exprList[i].alias) {
if (exprList[i].hasAs) {
this.appendKeyword('as');
}
this.travel(exprList[i].alias);
}
}
if (i !== exprList.length - 1) {
this.append(',', true);
}
}
};
Sql.prototype.travelIsExpression = function(ast) {
this.travel(ast.left);
this.appendKeyword('in');
if (ast.hasNot) {
this.appendKeyword('not');
}
this.append(ast.right);
};
Sql.prototype.travelNotExpression = function(ast) {
this.appendKeyword('not');
this.travel(ast.value);
};
Sql.prototype.travelOrExpression = Sql.prototype.travelAndExpression = Sql.prototype.travelXORExpression = function(
ast
) {
this.travel(ast.left);
this.appendKeyword(ast.operator);
this.travel(ast.right);
};
Sql.prototype.travelNull = Sql.prototype.travelBoolean = Sql.prototype.travelBooleanExtra = function(
ast
) {
this.appendKeyword(ast.value);
};
Sql.prototype.travelNumber = function(ast) {
this.append(ast.value);
};
Sql.prototype.travelString = function(ast) {
this.append(ast.value);
};
Sql.prototype.travelFunctionCall = function(ast) {
this.append(ast.name);
this.append('(', true, true);
var params = ast.params;
for (var i = 0; i < params.length; i++) {
var param = params[i];
this.travel(param);
if (i !== params.length - 1) {
this.append(',', true);
}
}
this.append(')', true);
};
Sql.prototype.travelFunctionCallParam = function(ast) {
if (ast.distinctOpt) {
this.appendKeyword(ast.distinctOpt);
}
this.travel(ast.value);
};
Sql.prototype.travelIdentifier = function(ast) {
this.append(ast.value);
};
Sql.prototype.travelIdentifierList = function(ast) {
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
};
Sql.prototype.travelWhenThenList = function(ast) {
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.appendKeyword('when');
this.travel(list[i].when);
this.appendKeyword('then');
this.travel(list[i].then);
}
};
Sql.prototype.travelCaseWhen = function(ast) {
this.appendKeyword('case');
if (ast.caseExprOpt) {
this.travel(ast.caseExprOpt);
}
this.travel(ast.whenThenList);
if (ast.else) {
this.appendKeyword('else');
this.travel(ast.else);
}
this.appendKeyword('end');
};
Sql.prototype.travelPrefix = function(ast) {
this.appendKeyword(ast.prefix);
this.travel(ast.value);
};
Sql.prototype.travelSimpleExprParentheses = function(ast) {
if (ast.hasRow) {
this.appendKeyword('row');
}
this.append('(', false, true);
this.travel(ast.value);
this.append(')', true);
};
Sql.prototype.travelSubQuery = function(ast) {
if (ast.hasExists) {
this.appendKeyword('exists');
}
this.append('(', false, true);
this.travel(ast.value);
this.append(')', true);
};
Sql.prototype.travelIdentifierExpr = function(ast) {
this.append('{');
this.travel(ast.identifier);
this.travel(ast.value);
this.append('}');
};
Sql.prototype.travelBitExpression = function(ast) {
this.travel(ast.left);
this.appendKeyword(ast.operator);
this.travel(ast.right);
};
Sql.prototype.travelInSubQueryPredicate = function(ast) {
this.travel(ast.left);
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('in');
this.append('(', false, true);
this.travel(ast.right);
this.append(')');
};
Sql.prototype.travelInExpressionListPredicate = function(ast) {
this.travel(ast.left);
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('in');
this.append('(', false, true);
this.travel(ast.right);
this.append(')');
};
Sql.prototype.travelBetweenPredicate = function(ast) {
this.travel(ast.left);
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('between');
this.travel(ast.right.left);
this.appendKeyword('and');
this.travel(ast.right.right);
};
Sql.prototype.travelSoundsLikePredicate = function(ast) {
this.travel(ast.left);
this.appendKeyword('sounds');
this.appendKeyword('like');
this.travel(ast.right);
};
Sql.prototype.travelLikePredicate = function(ast) {
this.travel(ast.left);
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('like');
this.travel(ast.right);
if (ast.escape) {
this.appendKeyword('escape');
this.travel(ast.escape);
}
};
Sql.prototype.travelRegexpPredicate = function(ast) {
this.travel(ast.left);
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('regexp');
this.travel(ast.right);
};
Sql.prototype.travelIsNullBooleanPrimary = function(ast) {
this.travel(ast.value);
this.appendKeyword('is');
if (ast.hasNot) {
this.appendKeyword('not');
}
this.appendKeyword('null');
};
Sql.prototype.travelComparisonBooleanPrimary = function(ast) {
this.travel(ast.left);
this.append(ast.operator);
this.travel(ast.right);
};
Sql.prototype.travelComparisonSubQueryBooleanPrimary = function(ast) {
this.travel(ast.left);
this.append(ast.operator);
this.appendKeyword(ast.subQueryOpt);
this.append('(', false, true);
this.travel(ast.right);
this.append(')');
};
Sql.prototype.travelExpressionList = function(ast) {
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
};
Sql.prototype.travelGroupBy = function(ast) {
this.appendKeyword('group by');
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
};
Sql.prototype.travelOrderBy = function(ast) {
this.appendKeyword('order by');
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
if (ast.rollUp) {
this.appendKeyword('with rollup');
}
};
Sql.prototype.travelGroupByOrderByItem = function(ast) {
this.travel(ast.value);
if (ast.sortOpt) {
this.appendKeyword(ast.sortOpt);
}
};
Sql.prototype.travelLimit = function(ast) {
this.appendKeyword('limit');
var list = ast.value;
if (list.length === 1) {
this.append(list[0]);
} else if (list.length === 2) {
if (ast.offsetMode) {
this.append(list[1]);
this.append('offset');
this.append(list[0]);
} else {
this.append(list[0]);
this.append(',', true);
this.append(list[1]);
}
}
};
Sql.prototype.travelTableReferences = function(ast) {
var list = ast.value;
if (ast.TableReferences) {
this.append('(', false, true);
}
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
if (ast.TableReferences) {
this.append(')');
}
};
Sql.prototype.travelTableReference = function(ast) {
if (ast.hasOj) {
this.append('{');
this.appendKeyword('oj');
this.travel(ast.value);
this.append('}');
} else {
this.travel(ast.value);
}
};
Sql.prototype.travelInnerCrossJoinTable = function(ast) {
this.travel(ast.left);
if (ast.innerCrossOpt) {
this.appendKeyword(ast.innerCrossOpt);
}
this.appendKeyword('join');
this.travel(ast.right);
if (ast.condition) {
this.travel(ast.condition);
}
};
Sql.prototype.travelStraightJoinTable = function(ast) {
this.travel(ast.left);
this.appendKeyword('straight_join');
this.travel(ast.right);
this.travel(ast.condition);
};
Sql.prototype.travelLeftRightJoinTable = function(ast) {
this.travel(ast.left);
this.appendKeyword(ast.leftRight);
if (ast.outOpt) {
this.appendKeyword(ast.outOpt);
}
this.appendKeyword('join');
this.travel(ast.right);
this.travel(ast.condition);
};
Sql.prototype.travelNaturalJoinTable = function(ast) {
this.travel(ast.left);
this.appendKeyword('natural');
if (ast.leftRight) {
this.appendKeyword(ast.leftRight);
}
if (ast.outOpt) {
this.appendKeyword(ast.outOpt);
}
this.appendKeyword('join');
this.travel(ast.right);
};
Sql.prototype.travelOnJoinCondition = function(ast) {
this.appendKeyword('on');
this.travel(ast.value);
};
Sql.prototype.travelUsingJoinCondition = function(ast) {
this.appendKeyword('using');
this.appendKeyword('(', false, true);
this.travel(ast.value);
this.appendKeyword(')');
};
Sql.prototype.travelPartitions = function(ast) {
this.appendKeyword('partition');
this.appendKeyword('(', false, true);
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
this.appendKeyword(')');
};
Sql.prototype.travelForOptIndexHint = function(ast) {
this.appendKeyword('for');
this.appendKeyword(ast.value);
};
Sql.prototype.travelIndexList = function(ast) {
var list = ast.value;
for (var i = 0; i < list.length; i++) {
this.travel(list[i]);
if (i !== list.length - 1) {
this.append(',', true);
}
}
};
Sql.prototype.travelUseIndexHint = function(ast) {
this.appendKeyword('use');
this.appendKeyword(ast.indexOrKey);
if (ast.forOpt) {
this.travel(ast.forOpt);
}
this.appendKeyword('(', false, true);
if (ast.value) {
this.travel(ast.value);
}
this.appendKeyword(')');
};
Sql.prototype.travelIgnoreIndexHint = function(ast) {
this.appendKeyword('ignore');
this.appendKeyword(ast.indexOrKey);
if (ast.forOpt) {
this.travel(ast.forOpt);
}
this.appendKeyword('(', false, true);
if (ast.value) {
this.travel(ast.value);
}
this.appendKeyword(')');
};
Sql.prototype.travelForceIndexHint = function(ast) {
this.appendKeyword('force');
this.appendKeyword(ast.indexOrKey);
if (ast.forOpt) {
this.travel(ast.forOpt);
}
this.appendKeyword('(', false, true);
if (ast.value) {
this.travel(ast.value);
}
this.appendKeyword(')');
};
Sql.prototype.travelTableFactor = function(ast) {
this.travel(ast.value);
if (ast.partition) {
this.travel(ast.partition);
}
if (ast.alias) {
if (ast.hasAs) {
this.appendKeyword('as');
}
this.travel(ast.alias);
}
if (ast.indexHintOpt) {
this.travel(ast.indexHintOpt);
}
};
Sql.prototype.travelUnion = function(ast) {
this.travel(ast.left);
this.appendKeyword('UNION');
if (ast.distinctOpt) {
this.appendKeyword(ast.distinctOpt);
}
this.travel(ast.right);
};
Sql.prototype.travelSelectParenthesized = function(ast) {
this.appendKeyword('(');
this.travel(ast.value);
this.appendKeyword(')');
};
Sql.prototype.travelPlaceHolder = function (ast) {
if (ast.left) {
this.travel(ast.left);
}
if (ast.operator) {
this.append(ast.operator);
}
if (ast.right) {
this.append(ast.right);
}
if (ast.value) {
this.travel(ast.value);
}
};