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556 lines
16 KiB
556 lines
16 KiB
/*==-- clang-c/Documentation.h - Utilities for comment processing -*- C -*-===*\
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|* *|
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|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
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|* Exceptions. *|
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|* See https://llvm.org/LICENSE.txt for license information. *|
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|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
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|* *|
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|*===----------------------------------------------------------------------===*|
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|* *|
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|* This header provides a supplementary interface for inspecting *|
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|* documentation comments. *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#ifndef LLVM_CLANG_C_DOCUMENTATION_H
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#define LLVM_CLANG_C_DOCUMENTATION_H
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#include "clang-c/ExternC.h"
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#include "clang-c/Index.h"
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LLVM_CLANG_C_EXTERN_C_BEGIN
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/**
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* \defgroup CINDEX_COMMENT Comment introspection
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*
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* The routines in this group provide access to information in documentation
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* comments. These facilities are distinct from the core and may be subject to
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* their own schedule of stability and deprecation.
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*
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* @{
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*/
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/**
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* A parsed comment.
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*/
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typedef struct {
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const void *ASTNode;
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CXTranslationUnit TranslationUnit;
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} CXComment;
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/**
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* Given a cursor that represents a documentable entity (e.g.,
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* declaration), return the associated parsed comment as a
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* \c CXComment_FullComment AST node.
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*/
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CINDEX_LINKAGE CXComment clang_Cursor_getParsedComment(CXCursor C);
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/**
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* Describes the type of the comment AST node (\c CXComment). A comment
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* node can be considered block content (e. g., paragraph), inline content
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* (plain text) or neither (the root AST node).
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*/
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enum CXCommentKind {
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/**
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* Null comment. No AST node is constructed at the requested location
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* because there is no text or a syntax error.
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*/
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CXComment_Null = 0,
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/**
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* Plain text. Inline content.
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*/
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CXComment_Text = 1,
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/**
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* A command with word-like arguments that is considered inline content.
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*
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* For example: \\c command.
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*/
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CXComment_InlineCommand = 2,
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/**
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* HTML start tag with attributes (name-value pairs). Considered
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* inline content.
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*
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* For example:
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* \verbatim
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* <br> <br /> <a href="http://example.org/">
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* \endverbatim
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*/
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CXComment_HTMLStartTag = 3,
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/**
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* HTML end tag. Considered inline content.
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*
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* For example:
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* \verbatim
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* </a>
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* \endverbatim
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*/
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CXComment_HTMLEndTag = 4,
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/**
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* A paragraph, contains inline comment. The paragraph itself is
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* block content.
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*/
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CXComment_Paragraph = 5,
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/**
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* A command that has zero or more word-like arguments (number of
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* word-like arguments depends on command name) and a paragraph as an
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* argument. Block command is block content.
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*
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* Paragraph argument is also a child of the block command.
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*
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* For example: \has 0 word-like arguments and a paragraph argument.
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*
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* AST nodes of special kinds that parser knows about (e. g., \\param
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* command) have their own node kinds.
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*/
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CXComment_BlockCommand = 6,
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/**
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* A \\param or \\arg command that describes the function parameter
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* (name, passing direction, description).
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*
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* For example: \\param [in] ParamName description.
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*/
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CXComment_ParamCommand = 7,
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/**
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* A \\tparam command that describes a template parameter (name and
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* description).
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*
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* For example: \\tparam T description.
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*/
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CXComment_TParamCommand = 8,
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/**
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* A verbatim block command (e. g., preformatted code). Verbatim
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* block has an opening and a closing command and contains multiple lines of
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* text (\c CXComment_VerbatimBlockLine child nodes).
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*
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* For example:
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* \\verbatim
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* aaa
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* \\endverbatim
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*/
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CXComment_VerbatimBlockCommand = 9,
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/**
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* A line of text that is contained within a
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* CXComment_VerbatimBlockCommand node.
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*/
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CXComment_VerbatimBlockLine = 10,
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/**
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* A verbatim line command. Verbatim line has an opening command,
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* a single line of text (up to the newline after the opening command) and
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* has no closing command.
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*/
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CXComment_VerbatimLine = 11,
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/**
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* A full comment attached to a declaration, contains block content.
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*/
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CXComment_FullComment = 12
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};
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/**
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* The most appropriate rendering mode for an inline command, chosen on
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* command semantics in Doxygen.
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*/
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enum CXCommentInlineCommandRenderKind {
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/**
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* Command argument should be rendered in a normal font.
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*/
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CXCommentInlineCommandRenderKind_Normal,
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/**
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* Command argument should be rendered in a bold font.
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*/
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CXCommentInlineCommandRenderKind_Bold,
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/**
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* Command argument should be rendered in a monospaced font.
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*/
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CXCommentInlineCommandRenderKind_Monospaced,
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/**
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* Command argument should be rendered emphasized (typically italic
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* font).
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*/
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CXCommentInlineCommandRenderKind_Emphasized,
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/**
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* Command argument should not be rendered (since it only defines an anchor).
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*/
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CXCommentInlineCommandRenderKind_Anchor
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};
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/**
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* Describes parameter passing direction for \\param or \\arg command.
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*/
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enum CXCommentParamPassDirection {
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/**
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* The parameter is an input parameter.
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*/
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CXCommentParamPassDirection_In,
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/**
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* The parameter is an output parameter.
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*/
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CXCommentParamPassDirection_Out,
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/**
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* The parameter is an input and output parameter.
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*/
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CXCommentParamPassDirection_InOut
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};
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/**
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* \param Comment AST node of any kind.
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*
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* \returns the type of the AST node.
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*/
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CINDEX_LINKAGE enum CXCommentKind clang_Comment_getKind(CXComment Comment);
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/**
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* \param Comment AST node of any kind.
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*
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* \returns number of children of the AST node.
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*/
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CINDEX_LINKAGE unsigned clang_Comment_getNumChildren(CXComment Comment);
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/**
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* \param Comment AST node of any kind.
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*
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* \param ChildIdx child index (zero-based).
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*
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* \returns the specified child of the AST node.
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*/
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CINDEX_LINKAGE
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CXComment clang_Comment_getChild(CXComment Comment, unsigned ChildIdx);
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/**
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* A \c CXComment_Paragraph node is considered whitespace if it contains
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* only \c CXComment_Text nodes that are empty or whitespace.
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*
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* Other AST nodes (except \c CXComment_Paragraph and \c CXComment_Text) are
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* never considered whitespace.
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*
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* \returns non-zero if \c Comment is whitespace.
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*/
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CINDEX_LINKAGE unsigned clang_Comment_isWhitespace(CXComment Comment);
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/**
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* \returns non-zero if \c Comment is inline content and has a newline
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* immediately following it in the comment text. Newlines between paragraphs
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* do not count.
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*/
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CINDEX_LINKAGE
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unsigned clang_InlineContentComment_hasTrailingNewline(CXComment Comment);
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/**
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* \param Comment a \c CXComment_Text AST node.
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*
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* \returns text contained in the AST node.
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*/
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CINDEX_LINKAGE CXString clang_TextComment_getText(CXComment Comment);
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/**
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* \param Comment a \c CXComment_InlineCommand AST node.
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*
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* \returns name of the inline command.
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*/
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CINDEX_LINKAGE
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CXString clang_InlineCommandComment_getCommandName(CXComment Comment);
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/**
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* \param Comment a \c CXComment_InlineCommand AST node.
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*
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* \returns the most appropriate rendering mode, chosen on command
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* semantics in Doxygen.
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*/
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CINDEX_LINKAGE enum CXCommentInlineCommandRenderKind
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clang_InlineCommandComment_getRenderKind(CXComment Comment);
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/**
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* \param Comment a \c CXComment_InlineCommand AST node.
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*
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* \returns number of command arguments.
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*/
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CINDEX_LINKAGE
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unsigned clang_InlineCommandComment_getNumArgs(CXComment Comment);
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/**
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* \param Comment a \c CXComment_InlineCommand AST node.
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*
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* \param ArgIdx argument index (zero-based).
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*
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* \returns text of the specified argument.
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*/
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CINDEX_LINKAGE
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CXString clang_InlineCommandComment_getArgText(CXComment Comment,
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unsigned ArgIdx);
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/**
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* \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST
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* node.
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*
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* \returns HTML tag name.
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*/
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CINDEX_LINKAGE CXString clang_HTMLTagComment_getTagName(CXComment Comment);
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/**
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* \param Comment a \c CXComment_HTMLStartTag AST node.
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*
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* \returns non-zero if tag is self-closing (for example, <br />).
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*/
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CINDEX_LINKAGE
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unsigned clang_HTMLStartTagComment_isSelfClosing(CXComment Comment);
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/**
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* \param Comment a \c CXComment_HTMLStartTag AST node.
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*
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* \returns number of attributes (name-value pairs) attached to the start tag.
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*/
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CINDEX_LINKAGE unsigned clang_HTMLStartTag_getNumAttrs(CXComment Comment);
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/**
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* \param Comment a \c CXComment_HTMLStartTag AST node.
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*
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* \param AttrIdx attribute index (zero-based).
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*
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* \returns name of the specified attribute.
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*/
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CINDEX_LINKAGE
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CXString clang_HTMLStartTag_getAttrName(CXComment Comment, unsigned AttrIdx);
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/**
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* \param Comment a \c CXComment_HTMLStartTag AST node.
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*
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* \param AttrIdx attribute index (zero-based).
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*
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* \returns value of the specified attribute.
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*/
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CINDEX_LINKAGE
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CXString clang_HTMLStartTag_getAttrValue(CXComment Comment, unsigned AttrIdx);
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/**
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* \param Comment a \c CXComment_BlockCommand AST node.
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*
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* \returns name of the block command.
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*/
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CINDEX_LINKAGE
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CXString clang_BlockCommandComment_getCommandName(CXComment Comment);
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/**
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* \param Comment a \c CXComment_BlockCommand AST node.
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*
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* \returns number of word-like arguments.
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*/
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CINDEX_LINKAGE
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unsigned clang_BlockCommandComment_getNumArgs(CXComment Comment);
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/**
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* \param Comment a \c CXComment_BlockCommand AST node.
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*
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* \param ArgIdx argument index (zero-based).
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*
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* \returns text of the specified word-like argument.
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*/
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CINDEX_LINKAGE
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CXString clang_BlockCommandComment_getArgText(CXComment Comment,
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unsigned ArgIdx);
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/**
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* \param Comment a \c CXComment_BlockCommand or
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* \c CXComment_VerbatimBlockCommand AST node.
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*
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* \returns paragraph argument of the block command.
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*/
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CINDEX_LINKAGE
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CXComment clang_BlockCommandComment_getParagraph(CXComment Comment);
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/**
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* \param Comment a \c CXComment_ParamCommand AST node.
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*
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* \returns parameter name.
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*/
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CINDEX_LINKAGE
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CXString clang_ParamCommandComment_getParamName(CXComment Comment);
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/**
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* \param Comment a \c CXComment_ParamCommand AST node.
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*
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* \returns non-zero if the parameter that this AST node represents was found
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* in the function prototype and \c clang_ParamCommandComment_getParamIndex
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* function will return a meaningful value.
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*/
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CINDEX_LINKAGE
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unsigned clang_ParamCommandComment_isParamIndexValid(CXComment Comment);
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/**
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* \param Comment a \c CXComment_ParamCommand AST node.
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*
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* \returns zero-based parameter index in function prototype.
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*/
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CINDEX_LINKAGE
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unsigned clang_ParamCommandComment_getParamIndex(CXComment Comment);
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/**
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* \param Comment a \c CXComment_ParamCommand AST node.
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*
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* \returns non-zero if parameter passing direction was specified explicitly in
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* the comment.
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*/
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CINDEX_LINKAGE
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unsigned clang_ParamCommandComment_isDirectionExplicit(CXComment Comment);
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/**
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* \param Comment a \c CXComment_ParamCommand AST node.
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*
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* \returns parameter passing direction.
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*/
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CINDEX_LINKAGE
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enum CXCommentParamPassDirection clang_ParamCommandComment_getDirection(
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CXComment Comment);
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/**
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* \param Comment a \c CXComment_TParamCommand AST node.
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*
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* \returns template parameter name.
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*/
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CINDEX_LINKAGE
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CXString clang_TParamCommandComment_getParamName(CXComment Comment);
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/**
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* \param Comment a \c CXComment_TParamCommand AST node.
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*
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* \returns non-zero if the parameter that this AST node represents was found
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* in the template parameter list and
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* \c clang_TParamCommandComment_getDepth and
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* \c clang_TParamCommandComment_getIndex functions will return a meaningful
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* value.
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*/
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CINDEX_LINKAGE
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unsigned clang_TParamCommandComment_isParamPositionValid(CXComment Comment);
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/**
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* \param Comment a \c CXComment_TParamCommand AST node.
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*
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* \returns zero-based nesting depth of this parameter in the template parameter list.
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*
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* For example,
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* \verbatim
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* template<typename C, template<typename T> class TT>
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* void test(TT<int> aaa);
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* \endverbatim
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* for C and TT nesting depth is 0,
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* for T nesting depth is 1.
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*/
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CINDEX_LINKAGE
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unsigned clang_TParamCommandComment_getDepth(CXComment Comment);
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/**
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* \param Comment a \c CXComment_TParamCommand AST node.
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*
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* \returns zero-based parameter index in the template parameter list at a
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* given nesting depth.
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*
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* For example,
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* \verbatim
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* template<typename C, template<typename T> class TT>
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* void test(TT<int> aaa);
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* \endverbatim
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* for C and TT nesting depth is 0, so we can ask for index at depth 0:
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* at depth 0 C's index is 0, TT's index is 1.
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*
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* For T nesting depth is 1, so we can ask for index at depth 0 and 1:
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* at depth 0 T's index is 1 (same as TT's),
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* at depth 1 T's index is 0.
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*/
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CINDEX_LINKAGE
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unsigned clang_TParamCommandComment_getIndex(CXComment Comment, unsigned Depth);
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/**
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* \param Comment a \c CXComment_VerbatimBlockLine AST node.
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*
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* \returns text contained in the AST node.
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*/
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CINDEX_LINKAGE
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CXString clang_VerbatimBlockLineComment_getText(CXComment Comment);
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/**
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* \param Comment a \c CXComment_VerbatimLine AST node.
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*
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* \returns text contained in the AST node.
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*/
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CINDEX_LINKAGE CXString clang_VerbatimLineComment_getText(CXComment Comment);
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/**
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* Convert an HTML tag AST node to string.
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*
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* \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST
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* node.
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*
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* \returns string containing an HTML tag.
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*/
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CINDEX_LINKAGE CXString clang_HTMLTagComment_getAsString(CXComment Comment);
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/**
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* Convert a given full parsed comment to an HTML fragment.
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*
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* Specific details of HTML layout are subject to change. Don't try to parse
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* this HTML back into an AST, use other APIs instead.
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*
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* Currently the following CSS classes are used:
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* \li "para-brief" for \paragraph and equivalent commands;
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* \li "para-returns" for \\returns paragraph and equivalent commands;
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* \li "word-returns" for the "Returns" word in \\returns paragraph.
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*
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* Function argument documentation is rendered as a \<dl\> list with arguments
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* sorted in function prototype order. CSS classes used:
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* \li "param-name-index-NUMBER" for parameter name (\<dt\>);
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* \li "param-descr-index-NUMBER" for parameter description (\<dd\>);
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* \li "param-name-index-invalid" and "param-descr-index-invalid" are used if
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* parameter index is invalid.
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*
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* Template parameter documentation is rendered as a \<dl\> list with
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* parameters sorted in template parameter list order. CSS classes used:
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* \li "tparam-name-index-NUMBER" for parameter name (\<dt\>);
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* \li "tparam-descr-index-NUMBER" for parameter description (\<dd\>);
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* \li "tparam-name-index-other" and "tparam-descr-index-other" are used for
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* names inside template template parameters;
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* \li "tparam-name-index-invalid" and "tparam-descr-index-invalid" are used if
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* parameter position is invalid.
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*
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* \param Comment a \c CXComment_FullComment AST node.
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*
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* \returns string containing an HTML fragment.
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*/
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CINDEX_LINKAGE CXString clang_FullComment_getAsHTML(CXComment Comment);
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/**
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* Convert a given full parsed comment to an XML document.
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*
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* A Relax NG schema for the XML can be found in comment-xml-schema.rng file
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* inside clang source tree.
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*
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* \param Comment a \c CXComment_FullComment AST node.
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*
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* \returns string containing an XML document.
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*/
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CINDEX_LINKAGE CXString clang_FullComment_getAsXML(CXComment Comment);
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/**
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* @}
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*/
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LLVM_CLANG_C_EXTERN_C_END
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#endif /* CLANG_C_DOCUMENTATION_H */
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