microsoft / microsoft/vscode-cpptools

There is no any hints when using "#"

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#3,927 5 comments 15 reactions 0 assignees View on GitHub

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Feature Request Feature: Auto-complete Language Service
Dominant language
TypeScript
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Issue Type: Bug

The IntelliSense may stop working when the code (*.c, *.h) using "#".

Eg.:

Have function "test_a", macro "m_EnTestA".

int main()
{
#if m_EnTestA /* No hints when start input 'm' /
#endif
test_a(m_EnTestA); /
have hints when start input 't' or 'm' */
return 0;
}

#define ... /* No hints when start input 't' or 'm' */

Extension version: 0.24.0
VS Code version: Code 1.36.1 (2213894ea0415ee8c85c5eea0d0ff81ecc191529, 2019-07-08T22:59:35.033Z)
OS version: Windows_NT x64 10.0.16299

System Info
Item Value
CPUs Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz (4 x 2496)
GPU Status 2d_canvas: enabled
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
multiple_raster_threads: enabled_on
native_gpu_memory_buffers: disabled_software
oop_rasterization: disabled_off
protected_video_decode: unavailable_off
rasterization: enabled
skia_deferred_display_list: disabled_off
skia_renderer: disabled_off
surface_synchronization: enabled_on
video_decode: enabled
viz_display_compositor: disabled_off
webgl: enabled
webgl2: enabled
Load (avg) undefined
Memory (System) 7.66GB (3.98GB free)
Process Argv
Screen Reader no
VM 0%

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the report in a .c or .h file using #if and #define, comparing completion after # with completion in a function call. Start by tracing the C/C++ IntelliSense completion path for preprocessor contexts; done means hints appear for the reported macro and function cases.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, typescript, vscode
Domain
developer-experience, tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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