feat: add generic and plsql basic parser file

This commit is contained in:
xiaowei
2020-09-11 17:39:10 +08:00
parent 68800312d3
commit f85163892a
83 changed files with 326433 additions and 155590 deletions

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import SQLParser from '../../../src/parser/generic';
describe('GenericSQL Lexer tests', () => {
const mysqlParser = new SQLParser();
const sql = 'select id,name,sex from user1;';
const tokens = mysqlParser.getAllTokens(sql);
test('token counts', () => {
expect(tokens.length).toBe(12);
});
});

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import SQLParser, { SqlParserListener } from '../../../src/parser/generic';
describe('Generic SQL Listener Tests', () => {
const expectTableName = 'user1';
const sql = `select id,name,sex from ${expectTableName};`;
const parser = new SQLParser();
const parserTree = parser.parse(sql);
test('Listener enterTableName', async () => {
let result = '';
class MyListener extends SqlParserListener {
enterTableName(ctx): void {
result = ctx.getText().toLowerCase();
}
}
const listenTableName: any = new MyListener();
await parser.listen(listenTableName, parserTree);
expect(result).toBe(expectTableName);
});
});

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import SQLParser from '../../../src/parser/generic';
describe('Generic SQL Syntax Tests', () => {
const parser = new SQLParser();
test('Select Statement', () => {
const sql = 'select id,name from user1;';
const result = parser.validate(sql);
expect(result.length).toBe(0);
});
test('Select 1+1', () => {
const sql = 'SELECT 1+1;';
const result = parser.validate(sql);
expect(result.length).toBe(0);
});
});

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import SQLParser, { SqlParserVisitor } from '../../../src/parser/generic';
describe('Generic SQL Visitor Tests', () => {
const expectTableName = 'user1';
const sql = `select id,name,sex from ${expectTableName};`;
const parser = new SQLParser();
const parserTree = parser.parse(sql, (error) => {
console.log('Parse error:', error);
});
console.log('Parser tree string:', parser.toString(parserTree));
test('Visitor visitTableName', () => {
let result = '';
class MyVisitor extends SqlParserVisitor {
visitTableName(ctx): void {
result = ctx.getText().toLowerCase();
super.visitTableName(ctx);
}
}
const visitor: any = new MyVisitor();
visitor.visit(parserTree);
expect(result).toBe(expectTableName);
});
});