push.c File Reference

Implements the OP_PUSH opcode for appending elements to arrays in the VM. More...

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Functions
	if (arr.type !=VAL_ARRAY)
	if (n< 0)
	free_value (arr)
	push_value (vm, make_int(n))

Variables
case	OP_PUSH
Value	arr = pop_value(vm)
int	n = array_push(&arr, v)
	break

Detailed Description

Implements the OP_PUSH opcode for appending elements to arrays in the VM.

Handles the OP_PUSH instruction, which appends a value to the end of an array. The array and value are popped from the stack; the opcode pushes the new array length (integer) as a result.

Behavior:

• Pops the value and array from the stack.
• Appends the value to the end of the array.
• Pushes the new length of the array onto the stack.

Error Handling:

• Exits with a runtime error if the first operand is not an array.
• Exits with a runtime error if memory allocation fails.

Example: // Bytecode: OP_PUSH // Stack before: [42, [10, 20, 30]] // Stack after: [4]

Definition in file push.c.

Function Documentation

free_value()

free_value

(

arr

)

if() [1/2]

if

(

arr.type !

= VAL_ARRAY

)

Definition at line 36 of file push.c.

if() [2/2]

if

(

)

Definition at line 41 of file push.c.

push_value()

push_value	(	vm	,
		make_int(n)	)

Variable Documentation

arr

Value arr = pop_value(vm)

Definition at line 35 of file push.c.

break

break

Definition at line 47 of file push.c.

n

int n = array_push(&arr, v)

Definition at line 40 of file push.c.

OP_PUSH

case OP_PUSH

Definition at line 33 of file push.c.