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@ -1,3 +1,19 @@
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/*
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* Copyright 2022 ByteDance Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ast
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import (
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@ -286,7 +302,7 @@ func skipNumber(src string, pos int) (ret int) {
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} else if nextNeedDigit {
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return -int(types.ERR_INVALID_CHAR)
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} else if c == '.' {
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if !lastIsDigit || pointer || sp == ss {
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if !lastIsDigit || pointer || exponent || sp == ss {
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return -int(types.ERR_INVALID_CHAR)
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}
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pointer = true
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@ -408,7 +424,7 @@ func skipPair(src string, pos int, lchar byte, rchar byte) (ret int) {
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return int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr))
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}
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func skipValue(src string, pos int) (ret int, start int) {
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func skipValueFast(src string, pos int) (ret int, start int) {
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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@ -433,3 +449,127 @@ func skipValue(src string, pos int) (ret int, start int) {
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}
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return ret, pos
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}
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func skipValue(src string, pos int) (ret int, start int) {
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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switch c := src[pos]; c {
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case 'n':
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ret = decodeNull(src, pos)
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case '"':
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ret, _ = skipString(src, pos)
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case '{':
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ret, _ = skipObject(src, pos)
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case '[':
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ret, _ = skipArray(src, pos)
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case 't':
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ret = decodeTrue(src, pos)
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case 'f':
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ret = decodeFalse(src, pos)
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case '-', '+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
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ret = skipNumber(src, pos)
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default:
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ret = -int(types.ERR_INVALID_CHAR)
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}
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return ret, pos
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}
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func skipObject(src string, pos int) (ret int, start int) {
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start = skipBlank(src, pos)
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if start < 0 {
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return start, -1
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}
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if src[start] != '{' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos = start + 1
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == '}' {
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return pos + 1, start
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}
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for {
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pos, _ = skipString(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] != ':' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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pos, _ = skipValue(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == '}' {
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return pos + 1, start
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}
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if src[pos] != ',' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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}
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}
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func skipArray(src string, pos int) (ret int, start int) {
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start = skipBlank(src, pos)
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if start < 0 {
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return start, -1
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}
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if src[start] != '[' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos = start + 1
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == ']' {
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return pos + 1, start
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}
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for {
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pos, _ = skipValue(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == ']' {
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return pos + 1, start
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}
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if src[pos] != ',' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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}
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}
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