to_file.c File Reference

VM opcode snippet for writing a Fun Value as JSON to a file. More...

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Functions
	free_value (vpretty)
	free_value (any)
	free_value (vpath)
	push_value (vm, make_int(0))

Variables
case	OP_JSON_TO_FILE
Value	any = pop_value(vm)
Value	vpath = pop_value(vm)
	break

Detailed Description

VM opcode snippet for writing a Fun Value as JSON to a file.

Implements the OP_JSON_TO_FILE instruction. Expects a pretty-print flag, a Value to serialize, and a path. Serializes the Value via json-c and writes it to the specified file path.

Build gating: compiled only when FUN_WITH_JSON is enabled. Otherwise the opcode consumes three arguments and pushes 0 (failure).

Stack effect (with FUN_WITH_JSON):

• Pops: pretty (bool/int), value (any), path (any; converted to string)
• Pushes: int (1 on success, 0 on failure)

Errors and edge cases:

• If the path cannot be converted to a C string or file writing fails, the opcode pushes 0.
• Pretty printing selects JSON_C_TO_STRING_PRETTY; otherwise plain output.

Definition in file to_file.c.

Function Documentation

free_value() [1/3]

free_value

(

any

)

free_value() [2/3]

free_value

(

vpath

)

free_value() [3/3]

free_value

(

vpretty

)

push_value()

push_value	(	vm	,
		make_int(0)	)

Variable Documentation

any

Value any = pop_value(vm)

Definition at line 56 of file to_file.c.

break

break

Definition at line 62 of file to_file.c.

OP_JSON_TO_FILE

case OP_JSON_TO_FILE

Definition at line 32 of file to_file.c.

vpath

Value vpath = pop_value(vm)

Definition at line 58 of file to_file.c.