mirror of
https://github.com/openappsec/openappsec.git
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77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
/**
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* Copyright 2019-present, GraphQL Foundation
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "GraphQLParser.h"
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#include "AstNode.h"
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#include "parser.tab.hpp"
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#include "lexer.h"
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#include "syntaxdefs.h"
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namespace facebook {
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namespace graphql {
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// Given properly-configured yylex, run the parser and return the
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// result.
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static std::unique_ptr<ast::Node> doParse(const char **outError, yyscan_t scanner, bool enableSchema) {
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Node *outAST = nullptr;
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yy::GraphQLParserImpl parser(enableSchema, &outAST, outError, scanner);
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int failure = parser.parse();
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if (failure) {
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delete outAST;
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}
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return !failure ? std::unique_ptr<ast::Node>(outAST) : nullptr;
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}
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static std::unique_ptr<ast::Node> parseStringImpl(const char *text, const char **error, bool enableSchema) {
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yyscan_t scanner;
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struct LexerExtra extra;
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yylex_init_extra(&extra, &scanner);
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YY_BUFFER_STATE buffer = yy_scan_string(text, scanner);
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yy_switch_to_buffer(buffer, scanner);
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auto result = doParse(error, scanner, enableSchema);
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yylex_destroy(scanner);
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return result;
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}
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std::unique_ptr<ast::Node> parseString(const char *text, const char **error) {
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return parseStringImpl(text, error, false);
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}
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std::unique_ptr<ast::Node> parseStringWithExperimentalSchemaSupport(
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const char *text, const char **error) {
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return parseStringImpl(text, error, true);
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}
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static std::unique_ptr<ast::Node> parseFileImpl(
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FILE *file, const char **error, bool enableSchema) {
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yyscan_t scanner;
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struct LexerExtra extra;
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yylex_init_extra(&extra, &scanner);
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yyset_in(file, scanner);
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auto result = doParse(error, scanner, enableSchema);
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yylex_destroy(scanner);
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return result;
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}
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std::unique_ptr<ast::Node> parseFile(FILE *file, const char **error) {
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return parseFileImpl(file, error, false);
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}
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std::unique_ptr<ast::Node> parseFileWithExperimentalSchemaSupport(
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FILE *file, const char **error) {
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return parseFileImpl(file, error, true);
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}
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} // namespace graphql
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} // namespace facebook
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