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Move
arguments
object creation to opcode
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,64 @@ | ||
use crate::{ | ||
builtins::function::arguments::Arguments, | ||
vm::{CallFrame, CompletionType}, | ||
Context, JsResult, | ||
}; | ||
|
||
use super::Operation; | ||
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/// `CreateMappedArgumentsObject` implements the Opcode Operation for `Opcode::CreateMappedArgumentsObject` | ||
/// | ||
/// Operation: | ||
/// - TODO: doc | ||
#[derive(Debug, Clone, Copy)] | ||
pub(crate) struct CreateMappedArgumentsObject; | ||
|
||
impl Operation for CreateMappedArgumentsObject { | ||
const NAME: &'static str = "CreateMappedArgumentsObject"; | ||
const INSTRUCTION: &'static str = "INST - CreateMappedArgumentsObject"; | ||
const COST: u8 = 8; | ||
|
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fn execute(context: &mut Context<'_>) -> JsResult<CompletionType> { | ||
let arguments_start = context.vm.frame().fp as usize + CallFrame::FIRST_ARGUMENT_POSITION; | ||
let function_object = context | ||
.vm | ||
.frame() | ||
.function(&context.vm) | ||
.clone() | ||
.expect("there should be a function object"); | ||
let code = context.vm.frame().code_block().clone(); | ||
let args = context.vm.stack[arguments_start..].to_vec(); | ||
|
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let env = context.vm.environments.current(); | ||
let arguments = Arguments::create_mapped_arguments_object( | ||
&function_object, | ||
&code.params, | ||
&args, | ||
env.declarative_expect(), | ||
context, | ||
); | ||
context.vm.push(arguments); | ||
Ok(CompletionType::Normal) | ||
} | ||
} | ||
|
||
/// `CreateUnmappedArgumentsObject` implements the Opcode Operation for `Opcode::CreateUnmappedArgumentsObject` | ||
/// | ||
/// Operation: | ||
/// - TODO: doc | ||
#[derive(Debug, Clone, Copy)] | ||
pub(crate) struct CreateUnmappedArgumentsObject; | ||
|
||
impl Operation for CreateUnmappedArgumentsObject { | ||
const NAME: &'static str = "CreateUnmappedArgumentsObject"; | ||
const INSTRUCTION: &'static str = "INST - CreateUnmappedArgumentsObject"; | ||
const COST: u8 = 4; | ||
|
||
fn execute(context: &mut Context<'_>) -> JsResult<CompletionType> { | ||
let arguments_start = context.vm.frame().fp as usize + CallFrame::FIRST_ARGUMENT_POSITION; | ||
let args = context.vm.stack[arguments_start..].to_vec(); | ||
let arguments = Arguments::create_unmapped_arguments_object(&args, context); | ||
context.vm.push(arguments); | ||
Ok(CompletionType::Normal) | ||
} | ||
} |
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