Cogs::Core::PartialPreprocessor Struct Reference

Partial C preprocessor. More...

#include <Preprocessor.h>

Public Member Functions
bool	process (Context *context, const StringView input)
	Run a text block through the preprocessor.

Public Attributes
std::string	processed
	Resulting processed text.
std::unordered_set< StringRef >	identifiersSeen
	Set of identifiers encountered in active text.
std::unordered_map< StringRef, StringRef >	definitions
	Set of preprocessor defines encountered in active text.

Detailed Description

Partial C preprocessor.

This preprocessor does:

• Parses #define's.
• Evaluates #if's/#ifdef's.
• Discards inactive parts of the text.
• Accumulates active parts of the text in PartialPreprocessor::processed.
• Keep track of C-style identifiers seen in the active text.
• Removes comments.
• Discards empty lines.

It does not:

• Do macro substition. However, active #define's are passed through for a subsequent preprocessor to parse.

Definition at line 41 of file Preprocessor.h.

Member Function Documentation

process()

bool Cogs::Core::PartialPreprocessor::process	(	Context *	context,
		const StringView	input
	)

Run a text block through the preprocessor.

Can be invoked multiple times, to incrementally populate processed, identifiersSeen and definitions

Returns

True on success

Definition at line 833 of file Preprocessor.cpp.

Member Data Documentation

definitions

std::unordered_map<StringRef, StringRef> Cogs::Core::PartialPreprocessor::definitions

Set of preprocessor defines encountered in active text.

Definition at line 54 of file Preprocessor.h.

identifiersSeen

std::unordered_set<StringRef> Cogs::Core::PartialPreprocessor::identifiersSeen

Set of identifiers encountered in active text.

Definition at line 51 of file Preprocessor.h.

processed

std::string Cogs::Core::PartialPreprocessor::processed

Resulting processed text.

The preprocessor doesn't use this except for outputing, so it is safe to steal the contents between invocations of process.

Definition at line 48 of file Preprocessor.h.

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The documentation for this struct was generated from the following files:

• Source/Utilities/Preprocessor.h
• Source/Utilities/Preprocessor.cpp