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you're lost

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This commit is contained in:
Chris Wanstrath 2025-11-09 21:30:48 -08:00
parent 47c6d3b32f
commit 5350bb8c2b
1 changed files with 23 additions and 24 deletions
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47
src/bytecode.ts
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@ -88,30 +88,6 @@ type LabelDefinition = [string] // Just ".label_name:"
export type ProgramItem = InstructionTuple | LabelDefinition
//
// Parse bytecode from human-readable string format.
// Operand types are determined by prefix/literal:
// #42 -> immediate number (e.g., JUMP #5, MAKE_ARRAY #3)
// .label -> label reference (e.g., JUMP .loop_start, MAKE_FUNCTION (x y) .body)
// name -> variable/function name (e.g., LOAD x, LOAD_NATIVE add)
// 42 -> number constant (e.g., PUSH 42)
// "str" -> string constant (e.g., PUSH "hello")
// 'str' -> string constant (e.g., PUSH 'hello')
// true -> boolean constant (e.g., PUSH true)
// false -> boolean constant (e.g., PUSH false)
// null -> null constant (e.g., PUSH null)
//
// Labels:
// .label_name: -> label definition (marks current instruction position)
//
// Function definitions:
// MAKE_FUNCTION (x y) #7 -> basic function (numeric offset)
// MAKE_FUNCTION (x y) .body -> basic function (label reference)
// MAKE_FUNCTION (x y=42) #7 -> with defaults
// MAKE_FUNCTION (x ...rest) #7 -> variadic
// MAKE_FUNCTION (x @named) #7 -> named
//
function parseFunctionParams(paramStr: string, constants: Constant[]): {
params: string[]
defaults: Record<string, number>
@ -373,6 +349,29 @@ function toBytecodeFromArray(program: ProgramItem[]): Bytecode /* throws */ {
}
}
////
// Parse bytecode from human-readable string format.
// Operand types are determined by prefix/literal:
// #42 -> immediate number (e.g., JUMP #5, MAKE_ARRAY #3)
// .label -> label reference (e.g., JUMP .loop_start, MAKE_FUNCTION (x y) .body)
// name -> variable/function name (e.g., LOAD x, LOAD_NATIVE add)
// 42 -> number constant (e.g., PUSH 42)
// "str" -> string constant (e.g., PUSH "hello")
// 'str' -> string constant (e.g., PUSH 'hello')
// true -> boolean constant (e.g., PUSH true)
// false -> boolean constant (e.g., PUSH false)
// null -> null constant (e.g., PUSH null)
//
// Labels:
// .label_name: -> label definition (marks current instruction position)
//
// Function definitions:
// MAKE_FUNCTION (x y) #7 -> basic function (numeric offset)
// MAKE_FUNCTION (x y) .body -> basic function (label reference)
// MAKE_FUNCTION (x y=42) #7 -> with defaults
// MAKE_FUNCTION (x ...rest) #7 -> variadic
// MAKE_FUNCTION (x @named) #7 -> named
function toBytecodeFromString(str: string): Bytecode /* throws */ {
const lines = str.trim().split("\n")