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- import { StoreObject } from '../store/storeObject';
- import * as Commands from './../../ast/commands';
- import { Types, toReal } from './../../ast/types';
- import { LanguageService } from '../../services/languageService';
- import { IVProgParser } from '../../ast/ivprogParser';
- import { RealLiteral, IntLiteral, BoolLiteral } from '../../ast/expressions';
- /**
- *
- * is_real
- * is_int
- * is_bool
- * cast_real
- * cast_int
- * cast_bool
- * cast_string
- */
- export function createIsRealFun () {
- const isRealFun = (sto, _) => {
- const str = sto.applyStore("str");
- const lexer = LanguageService.getCurrentLexer();
- const parser = new IVProgParser(str.value, lexer);
- let result = false;
- try {
- const val = parser.parseTerm();
- if (val instanceof RealLiteral) {
- result = true;
- }
- } catch (error) { }
- const temp = new StoreObject(Types.BOOLEAN, result);
- return Promise.resolve(sto.updateStore("$", temp));
- }
- const block = new Commands.CommandBlock([], [new Commands.SysCall(isRealFun)]);
- const func = new Commands.Function('$isReal', Types.BOOLEAN,
- [new Commands.FormalParameter(Types.STRING, 'str', 0, false)],
- block);
- return func;
- }
- export function createIsIntFun () {
- const isIntFun = (sto, _) => {
- const str = sto.applyStore("str");
- const lexer = LanguageService.getCurrentLexer();
- const parser = new IVProgParser(str.value, lexer);
- let result = false;
- try {
- const val = parser.parseTerm();
- if (val instanceof IntLiteral) {
- result = true;
- }
- } catch (error) { }
- const temp = new StoreObject(Types.BOOLEAN, result);
- return Promise.resolve(sto.updateStore("$", temp));
- }
- const block = new Commands.CommandBlock([], [new Commands.SysCall(isIntFun)]);
- const func = new Commands.Function('$isInt', Types.BOOLEAN,
- [new Commands.FormalParameter(Types.STRING, 'str', 0, false)],
- block);
- return func;
- }
- export function createIsBoolFun () {
- const isBoolFun = (sto, _) => {
- const str = sto.applyStore("str");
- const lexer = LanguageService.getCurrentLexer();
- const parser = new IVProgParser(str.value, lexer);
- let result = false;
- try {
- const val = parser.parseTerm();
- if (val instanceof BoolLiteral) {
- result = true;
- }
- } catch (error) { }
- const temp = new StoreObject(Types.BOOLEAN, result);
- return Promise.resolve(sto.updateStore("$", temp));
- }
- const block = new Commands.CommandBlock([], [new Commands.SysCall(isBoolFun)]);
- const func = new Commands.Function('$isBool', Types.BOOLEAN,
- [new Commands.FormalParameter(Types.STRING, 'str', 0, false)],
- block);
- return func;
- }
- export function createCastRealFun () {
- const castRealFun = (sto, _) => {
- const val = sto.applyStore("val");
- switch (val.type.ord) {
- case Types.INTEGER.ord: {
- const temp = new StoreObject(Types.REAL, toReal(val.value));
- return Promise.resolve(sto.updateStore("$", temp));
- }
- case Types.STRING.ord: {
- const lexer = LanguageService.getCurrentLexer();
- const parser = new IVProgParser(val.value, lexer);
- try {
- const result = parser.parseTerm();
- if (result instanceof RealLiteral) {
- const temp = new StoreObject(Types.REAL, result.value);
- return Promise.resolve(sto.updateStore("$", temp));
- }
- } catch (error) {
- return Promise.reject("cannot convert string to real");
- }
- }
- }
- }
- const block = new Commands.CommandBlock([], [new Commands.SysCall(castRealFun)]);
- const func = new Commands.Function('$castReal', Types.REAL,
- [new Commands.FormalParameter(Types.ALL, 'val', 0, false)],
- block);
- return func;
- }
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