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import {AbstractNode} from "./_abstract_node";
import {INode} from "./_inode";
import {TokenNode} from "./token_node";
import {ExpressionNode} from "./expression_node";
import {Comment} from "../1_lexer/tokens/comment";
import {Token} from "../1_lexer/tokens/_token";
import {Pragma} from "../1_lexer/tokens/pragma";
import {String, StringTemplate, StringTemplateBegin, StringTemplateMiddle, StringTemplateEnd} from "../1_lexer/tokens/string";
import {IStatement} from "../2_statements/statements/_statement";
import {IStatementRunnable} from "../2_statements/statement_runnable";
export class StatementNode extends AbstractNode<ExpressionNode | TokenNode> {
private readonly statement: IStatement;
private readonly colon: Token | undefined;
private readonly pragmas: readonly Token[];
public constructor(statement: IStatement, colon?: Token | undefined, pragmas?: readonly Token[]) {
super();
this.statement = statement;
this.colon = colon;
if (pragmas) {
this.pragmas = pragmas;
} else {
this.pragmas = [];
}
}
public get() {
return this.statement;
}
public getColon(): Token | undefined {
return this.colon;
}
public getPragmas(): readonly Token[] {
return this.pragmas;
}
public setChildren(children: (ExpressionNode | TokenNode)[]): StatementNode {
if (children.length === 0) {
throw new Error("statement: zero children");
}
this.children = children;
return this;
}
public getStart(): Position {
return this.getFirstToken().getStart();
}
public getEnd(): Position {
const last = this.getLastToken();
return last.getEnd();
}
public getTokens(): readonly Token[] {
const tokens: Token[] = [];
for (const c of this.getChildren()) {
tokens.push(...this.toTokens(c));
}
return tokens;
}
public includesToken(search: Token): boolean {
for (const t of this.getTokens()) {
if (t.getStart().equals(search.getStart())) {
return true;
}
}
return false;
}
public getTokenNodes(): readonly TokenNode[] {
const tokens: TokenNode[] = [];
for (const c of this.getChildren()) {
tokens.push(...this.toTokenNodess(c));
}
return tokens;
}
public concatTokens(): string {
let str = "";
let prev: Token | undefined;
for (const token of this.getTokens()) {
if (token instanceof Pragma) {
continue;
}
if (str === "") {
str = token.getStr();
} else if (prev && prev.getStr().length + prev.getCol() === token.getCol()
&& prev.getRow() === token.getRow()) {
str = str + token.getStr();
} else {
str = str + " " + token.getStr();
}
prev = token;
}
return str;
}
public concatTokensWithoutStringsAndComments(): string {
let str = "";
let prev: Token | undefined;
for (const token of this.getTokens()) {
if (token instanceof Comment
|| token instanceof String
|| token instanceof StringTemplate
|| token instanceof StringTemplateBegin
|| token instanceof StringTemplateMiddle
|| token instanceof StringTemplateEnd) {
continue;
}
if (str === "") {
str = token.getStr();
} else if (prev && prev.getStr().length + prev.getCol() === token.getCol()
&& prev.getRow() === token.getRow()) {
str = str + token.getStr();
} else {
str = str + " " + token.getStr();
}
prev = token;
}
return str;
}
public getTerminator(): string {
return this.getLastToken().getStr();
}
public getFirstToken(): Token {
for (const child of this.getChildren()) {
return child.getFirstToken();
}
throw new Error("StatementNode, getFirstToken, no children, " + this.get().constructor.name);
}
public getLastToken(): Token {
const child = this.getLastChild();
if (child !== undefined) {
return child.getLastToken();
}
throw new Error("StatementNode, getLastToken, no children");
}
public findDirectExpression(type: new () => IStatementRunnable): ExpressionNode | undefined {
for (const child of this.getChildren()) {
if (child instanceof ExpressionNode && child.get() instanceof type) {
return child;
}
}
return undefined;
}
public findDirectExpressions(type: new () => IStatementRunnable): readonly ExpressionNode[] {
const ret: ExpressionNode[] = [];
for (const child of this.getChildren()) {
if (child instanceof ExpressionNode && child.get() instanceof type) {
ret.push(child);
}
}
return ret;
}
public findDirectTokenByText(text: string): Token | undefined {
const upper = text.toUpperCase();
for (const child of this.getChildren()) {
if (child instanceof TokenNode && child.get().getStr().toUpperCase() === upper) {
return child.get();
}
}
return undefined;
}
public findFirstExpression(type: new () => IStatementRunnable): ExpressionNode | undefined {
for (const child of this.getChildren()) {
if (child instanceof TokenNode) {
continue;
} else if (child.get() instanceof type) {
return child;
} else {
const res = child.findFirstExpression(type);
if (res) {
return res;
}
}
}
return undefined;
}
public findAllExpressions(type: new () => IStatementRunnable): readonly ExpressionNode[] {
const ret: ExpressionNode[] = [];
for (const child of this.getChildren()) {
if (child instanceof TokenNode) {
continue;
} else if (child.get() instanceof type) {
ret.push(child);
} else {
ret.push(...child.findAllExpressions(type));
}
}
return ret;
}
public findAllExpressionsRecursive(type: new () => IStatementRunnable): readonly ExpressionNode[] {
const ret: ExpressionNode[] = [];
for (const child of this.getChildren()) {
if (child instanceof TokenNode) {
continue;
} else if (child.get() instanceof type) {
ret.push(child);
}
ret.push(...child.findAllExpressions(type));
}
return ret;
}
public findAllExpressionsMulti(type: (new () => IStatementRunnable)[], recursive = false): ExpressionNode[] {
const ret: ExpressionNode[] = [];
for (const child of this.getChildren()) {
if (child instanceof TokenNode) {
continue;
}
const before = ret.length;
for (const t of type) {
if (child.get() instanceof t) {
ret.push(child);
}
}
if (before === ret.length || recursive === true) {
ret.push(...child.findAllExpressionsMulti(type));
}
}
return ret;
}
/**
* Returns the Position of the first token if the sequence is found,
* otherwise undefined. Strings and Comments are ignored in this search.
* @param first - Text of the first Token
* @param second - Text of the second Token
*/
public findTokenSequencePosition(first: string, second: string): Position | undefined {
let prev: Token | undefined;
for (const token of this.getTokens()) {
if (token instanceof Comment
|| token instanceof String
|| token instanceof StringTemplate
|| token instanceof StringTemplateBegin
|| token instanceof StringTemplateMiddle
|| token instanceof StringTemplateEnd) {
continue;
}
if (prev && token.getStr().toUpperCase() === second && prev?.getStr().toUpperCase() === first.toUpperCase()) {
return prev.getStart();
} else {
prev = token;
}
}
return undefined;
}
public findExpressionAfterToken(text: string): ExpressionNode | undefined {
const children = this.getChildren();
for (let i = 0; i < children.length - 1; i++) {
const c = children[i];
const next = children[i + 1];
if (c instanceof TokenNode
&& c.get().getStr().toUpperCase() === text.toUpperCase()
&& next instanceof ExpressionNode) {
return next;
}
}
return undefined;
}
////////////////////////////////
private toTokens(b: INode): readonly Token[] {
const tokens: Token[] = [];
if (b instanceof TokenNode) {
tokens.push(b.get());
return tokens;
}
for (const c of b.getChildren()) {
if (c instanceof TokenNode) {
tokens.push(c.get());
} else {
tokens.push(...this.toTokens(c));
}
}
return tokens;
}
private toTokenNodess(b: INode): readonly TokenNode[] {
const tokens: TokenNode[] = [];
if (b instanceof TokenNode) {
tokens.push(b);
return tokens;
}
for (const c of b.getChildren()) {
if (c instanceof TokenNode) {
tokens.push(c);
} else {
tokens.push(...this.toTokenNodess(c));
}
}
return tokens;
}
} |