40 lines
706 B
JavaScript
40 lines
706 B
JavaScript
/**
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* Track current position in code generation.
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*/
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export default class Position {
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constructor() {
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this.line = 1;
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this.column = 0;
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}
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/**
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* Push a string to the current position, mantaining the current line and column.
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*/
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push(str) {
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for (var i = 0; i < str.length; i++) {
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if (str[i] === "\n") {
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this.line++;
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this.column = 0;
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} else {
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this.column++;
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}
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}
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}
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/**
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* Unshift a string from the current position, mantaining the current line and column.
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*/
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unshift(str) {
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for (var i = 0; i < str.length; i++) {
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if (str[i] === "\n") {
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this.line--;
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} else {
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this.column--;
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}
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}
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}
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}
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