KrkChunk Struct Reference

Opcode chunk of a code object. More...

#include <chunk.h>

Public Member Functions
void	krk_initChunk (KrkChunk *chunk)
	Initialize an opcode chunk.
void	krk_writeChunk (KrkChunk *chunk, uint8_t byte, size_t line)
	Append a byte to an opcode chunk.
void	krk_freeChunk (KrkChunk *chunk)
	Release the resources allocated to an opcode chunk.
size_t	krk_addConstant (KrkChunk *chunk, KrkValue value)
	Add a new constant value to an opcode chunk.
void	krk_emitConstant (KrkChunk *chunk, size_t ind, size_t line)
	Write an OP_CONSTANT(_LONG) instruction.
size_t	krk_writeConstant (KrkChunk *chunk, KrkValue value, size_t line)
	Add a new constant and write an instruction for it.
size_t	krk_lineNumber (KrkChunk *chunk, size_t offset)
	Obtain the line number for a byte offset into a bytecode chunk. More...

Data Fields
size_t	count
size_t	capacity
uint8_t *	code
size_t	linesCount
size_t	linesCapacity
KrkLineMap *	lines
struct KrkString *	filename
KrkValueArray	constants

Detailed Description

Opcode chunk of a code object.

Opcode chunks are internal to code objects and I'm not really sure why we're still separating them from the KrkCodeObjects.

Stores four flexible arrays using three different formats:

• Code, representing opcodes and operands.
• Lines, representing offset-to-line mappings.
• Filename, the string name of the source file.
• Constants, an array of values referenced by the code object.

Definition at line 36 of file chunk.h.

Member Function Documentation

krk_lineNumber()

size_t krk_lineNumber	(	KrkChunk *	chunk,
		size_t	offset
	)

Obtain the line number for a byte offset into a bytecode chunk.

Scans the line mapping table for the given chunk to find the correct line number from the original source file for the instruction at byte index 'offset'.

Parameters

chunk	Bytecode chunk containing the instruction.
offset	Byte offset of the instruction to locate.

Returns

Line number, 1-indexed.

Definition at line 75 of file chunk.c.

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

• src/kuroko/chunk.h