@awayfl/avm2/lib/gen/emiters/emitAnnotationOld.ts

Virtual machine for executing AS3 code

import { CONSTANT } from '../../abc/lazy/CONSTANT';
import { CompilerState } from '../CompilerState';
import { IFunctionAnnotation } from './emitAnnotation';
import { emitInlineLocal } from './emitInlineVars';

export function emitAnnotationOld(state: CompilerState): IFunctionAnnotation {
	const params = state.methodInfo.parameters;
	const methodName = state.methodInfo.meta.name;
	const js0 = [];

	js0.push(`${state.indent}return function compiled_${methodName.replace(/([^a-z0-9]+)/gi, '_')}() {`);

	state.moveIndent(1);

	for (let i: number = 0; i < params.length; i++)
		if (params[i].hasOptionalValue()) {
			js0.push(`${state.indent}let argnum = arguments.length;`);
			break;
		}

	const thisAlias = emitInlineLocal(state, 0);
	if (thisAlias !== 'this') {
		// eslint-disable-next-line max-len
		js0.push(`${state.indent}let ${emitInlineLocal(state, 0)} = this === context.jsGlobal ? context.savedScope.global.object : this;`);
	} else {
		js0.push(`${state.indent}// Possible use a real "this"`);
	}

	for (let i: number = 0; i < params.length; i++) {
		const p = params[i];
		js0.push(`${state.indent}let ${emitInlineLocal(state, i + 1)} = arguments[${i}];`);

		if (params[i].hasOptionalValue())
			switch (p.optionalValueKind) {
				case CONSTANT.Utf8:
					// eslint-disable-next-line max-len
					js0.push(`${state.indent}if (argnum <= ${i}) ${emitInlineLocal(state, i + 1)} = context.abc.getString(${p.optionalValueIndex});`);
					break;
				default:
					// eslint-disable-next-line max-len
					js0.push(`${state.indent}if (argnum <= ${i}) ${emitInlineLocal(state, i + 1)} = ${p.getOptionalValue()};`);
					break;
			}
	}

	return {
		annotation: js0.join('\n'),
		paramsShift: 0
	};
}