chromium/third_party/dawn/src/tint/lang/wgsl/reader/reader.h

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#ifndef SRC_TINT_LANG_WGSL_READER_READER_H_
#define SRC_TINT_LANG_WGSL_READER_READER_H_

#include "src/tint/lang/core/ir/module.h"
#include "src/tint/lang/wgsl/program/program.h"
#include "src/tint/lang/wgsl/reader/options.h"

namespace tint::ast {
class Enable;
}  // namespace tint::ast

namespace tint::wgsl::reader {

/// Parses the WGSL source, returning the parsed program.
/// If the source fails to parse then the returned
/// `program.Diagnostics.ContainsErrors()` will be true, and the
/// `program.Diagnostics()` will describe the error.
/// @param file the source file
/// @param options the configuration options to use when parsing WGSL
/// @returns the parsed program
Program Parse(const Source::File* file, const Options& options = { … };

/// Parse a WGSL program from source, and return an IR module.
/// @param file the input WGSL file
/// @param options the configuration options to use when parsing WGSL
/// @returns the resulting IR module, or failure
Result<core::ir::Module> WgslToIR(const Source::File* file, const Options& options = { … };

/// Builds a core-dialect core::ir::Module from the given Program
/// @param program the Program to use.
/// @returns the core-dialect IR module.
///
/// @note this assumes the `program.IsValid()`, and has had const-eval done so
/// any abstract values have been calculated and converted into the relevant
/// concrete types.
tint::Result<core::ir::Module> ProgramToLoweredIR(const Program& program);

/// Allows for checking if an extension is currently supported/unsupported by IR
/// before trying to convert to it.
bool IsUnsupportedByIR(const ast::Enable* enable);

}  // namespace tint::wgsl::reader

#endif  // SRC_TINT_LANG_WGSL_READER_READER_H_