swc/crates/swc_bundler/tests/.cache/untrusted/23bcdf59f6d6ef51b1971f745ae4c55a749c15b8.ts
2021-11-09 20:42:49 +09:00

105 lines
2.7 KiB
TypeScript

// Loaded from https://raw.githubusercontent.com/denjucks/dex/master/lib/schema/compiler.js
import { pushQuery, pushAdditional, unshiftQuery } from './helpers.js';
// The "SchemaCompiler" takes all of the query statements which have been
// gathered in the "SchemaBuilder" and turns them into an array of
// properly formatted / bound query strings.
function SchemaCompiler(client, builder) {
this.builder = builder;
this._commonBuilder = this.builder;
this.client = client;
this.schema = builder._schema;
this.formatter = client.formatter(builder);
this.sequence = [];
}
function throwOnlyPGError(operationName) {
throw new Error(
`${operationName} is not supported for this dialect (only PostgreSQL supports it currently).`
);
}
Object.assign(SchemaCompiler.prototype, {
pushQuery: pushQuery,
pushAdditional: pushAdditional,
unshiftQuery: unshiftQuery,
createTable: buildTable('create'),
createTableIfNotExists: buildTable('createIfNot'),
createSchema: () => {
throwOnlyPGError('createSchema');
},
createSchemaIfNotExists: () => {
throwOnlyPGError('createSchemaIfNotExists');
},
dropSchema: () => {
throwOnlyPGError('dropSchema');
},
dropSchemaIfExists: () => {
throwOnlyPGError('dropSchemaIfExists');
},
alterTable: buildTable('alter'),
dropTablePrefix: 'drop table ',
dropTable(tableName) {
this.pushQuery(
this.dropTablePrefix +
this.formatter.wrap(prefixedTableName(this.schema, tableName))
);
},
dropTableIfExists(tableName) {
this.pushQuery(
this.dropTablePrefix +
'if exists ' +
this.formatter.wrap(prefixedTableName(this.schema, tableName))
);
},
raw(sql, bindings) {
this.sequence.push(this.client.raw(sql, bindings).toSQL());
},
toSQL() {
const sequence = this.builder._sequence;
for (let i = 0, l = sequence.length; i < l; i++) {
const query = sequence[i];
this[query.method].apply(this, query.args);
}
return this.sequence;
},
});
function buildTable(type) {
return function (tableName, fn) {
const builder = this.client.tableBuilder(type, tableName, fn);
// pass queryContext down to tableBuilder but do not overwrite it if already set
const queryContext = this.builder.queryContext();
if (queryContext !== undefined && builder.queryContext() === undefined) {
builder.queryContext(queryContext);
}
builder.setSchema(this.schema);
const sql = builder.toSQL();
for (let i = 0, l = sql.length; i < l; i++) {
this.sequence.push(sql[i]);
}
};
}
function prefixedTableName(prefix, table) {
return prefix ? `${prefix}.${table}` : table;
}
export default SchemaCompiler;