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b87be18d8e
Summary:
There are cases where the same string or select is repeated verbatim in a lot of diagnostics. This can be a pain to maintain and update. Tablegen provides no way stash the common text somewhere and reuse it in the diagnostics, until now!
This patch allows diagnostic texts to contain `%sub{<definition-name>}`, where `<definition-name>` names a Tablegen record of type `TextSubstitution`. These substitutions are done early, before the diagnostic string is otherwise processed. All `%sub` modifiers will be replaced before the diagnostic definitions are emitted.
The substitution must specify all arguments used by the substitution, and modifier indexes in the substitution are re-numbered accordingly. For example:
```
def select_ovl_candidate : TextSubstitution<"%select{function|constructor}0%select{| template| %2}1">;
```
when used as
```
"candidate `%sub{select_ovl_candidate}3,2,1 not viable"
```
will act as if we wrote:
```
"candidate %select{function|constructor}3%select{| template| %1}2 not viable"
```
Reviewers: rsmith, rjmccall, aaron.ballman, a.sidorin
Reviewed By: rjmccall
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D46740
llvm-svn: 332799
76 lines
1.6 KiB
HTML
76 lines
1.6 KiB
HTML
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def GlobalDocumentation {
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code Intro =[{..
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-------------------------------------------------------------------
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NOTE: This file is automatically generated by running clang-tblgen
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-gen-diag-docs. Do not edit this file by hand!!
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-------------------------------------------------------------------
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.. Add custom CSS to output. FIXME: This should be put into <head> rather
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than the start of <body>.
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.. raw:: html
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<style>
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table.docutils {
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width: 1px;
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}
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table.docutils td {
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border: none;
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padding: 0 0 0 0.2em;
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vertical-align: middle;
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white-space: nowrap;
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width: 1px;
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font-family: monospace;
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}
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table.docutils tr + tr {
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border-top: 0.2em solid #aaa;
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}
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.error {
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font-family: monospace;
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font-weight: bold;
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color: #c00;
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}
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.warning {
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font-family: monospace;
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font-weight: bold;
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color: #80a;
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}
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.remark {
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font-family: monospace;
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font-weight: bold;
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color: #00c;
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}
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.diagtext {
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font-family: monospace;
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font-weight: bold;
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}
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</style>
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.. FIXME: rST doesn't support formatting this, so we format all <td> elements
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as monospace font face instead.
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.. |nbsp| unicode:: 0xA0
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:trim:
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.. Roles generated by clang-tblgen.
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.. role:: error
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.. role:: warning
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.. role:: remark
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.. role:: diagtext
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.. role:: placeholder(emphasis)
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=========================
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Diagnostic flags in Clang
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=========================
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.. contents::
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:local:
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Introduction
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============
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This page lists the diagnostic flags currently supported by Clang.
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Diagnostic flags
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================
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}];
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}
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