github.com/cloudwego/frugal@v0.1.15/internal/binary/decoder/errors_emu.go (about)

     1  /*
     2   * Copyright 2022 ByteDance Inc.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package decoder
    18  
    19  import (
    20      `unsafe`
    21  
    22      `github.com/cloudwego/frugal/internal/atm/hir`
    23      `github.com/cloudwego/frugal/internal/rt`
    24  )
    25  
    26  func emu_seterr(ctx hir.CallContext, i int, err error) {
    27      vv := (*rt.GoIface)(unsafe.Pointer(&err))
    28      ctx.Rp(i, unsafe.Pointer(vv.Itab))
    29      ctx.Rp(i + 1, vv.Value)
    30  }
    31  
    32  func emu_gcall_error_eof(ctx hir.CallContext) {
    33      if !ctx.Verify("i", "**") {
    34          panic("invalid error_eof call")
    35      } else {
    36          emu_seterr(ctx, 0, error_eof(int(ctx.Au(0))))
    37      }
    38  }
    39  
    40  func emu_gcall_error_skip(ctx hir.CallContext) {
    41      if !ctx.Verify("i", "**") {
    42          panic("invalid error_skip call")
    43      } else {
    44          emu_seterr(ctx, 0, error_skip(int(ctx.Au(0))))
    45      }
    46  }
    47  
    48  func emu_gcall_error_type(ctx hir.CallContext) {
    49      if !ctx.Verify("ii", "**") {
    50          panic("invalid error_type call")
    51      } else {
    52          emu_seterr(ctx, 0, error_type(uint8(ctx.Au(0)), uint8(ctx.Au(1))))
    53      }
    54  }
    55  
    56  func emu_gcall_error_missing(ctx hir.CallContext) {
    57      if !ctx.Verify("*ii", "**") {
    58          panic("invalid error_skip call")
    59      } else {
    60          emu_seterr(ctx, 0, error_missing((*rt.GoType)(ctx.Ap(0)), int(ctx.Au(1)), ctx.Au(2)))
    61      }
    62  }