1 files changed, 106 insertions, 0 deletions
diff --git a/node_modules/sucrase/dist/esm/parser/tokenizer/state.js b/node_modules/sucrase/dist/esm/parser/tokenizer/state.js
new file mode 100644
index 0000000..940cde0
--- /dev/null
+++ b/node_modules/sucrase/dist/esm/parser/tokenizer/state.js
@@ -0,0 +1,106 @@
+
+import {ContextualKeyword} from "./keywords";
+import { TokenType as tt} from "./types";
+
+export class Scope {
+  
+  
+  
+
+  constructor(startTokenIndex, endTokenIndex, isFunctionScope) {
+    this.startTokenIndex = startTokenIndex;
+    this.endTokenIndex = endTokenIndex;
+    this.isFunctionScope = isFunctionScope;
+  }
+}
+
+export class StateSnapshot {
+  constructor(
+     potentialArrowAt,
+     noAnonFunctionType,
+     inDisallowConditionalTypesContext,
+     tokensLength,
+     scopesLength,
+     pos,
+     type,
+     contextualKeyword,
+     start,
+     end,
+     isType,
+     scopeDepth,
+     error,
+  ) {;this.potentialArrowAt = potentialArrowAt;this.noAnonFunctionType = noAnonFunctionType;this.inDisallowConditionalTypesContext = inDisallowConditionalTypesContext;this.tokensLength = tokensLength;this.scopesLength = scopesLength;this.pos = pos;this.type = type;this.contextualKeyword = contextualKeyword;this.start = start;this.end = end;this.isType = isType;this.scopeDepth = scopeDepth;this.error = error;}
+}
+
+export default class State {constructor() { State.prototype.__init.call(this);State.prototype.__init2.call(this);State.prototype.__init3.call(this);State.prototype.__init4.call(this);State.prototype.__init5.call(this);State.prototype.__init6.call(this);State.prototype.__init7.call(this);State.prototype.__init8.call(this);State.prototype.__init9.call(this);State.prototype.__init10.call(this);State.prototype.__init11.call(this);State.prototype.__init12.call(this);State.prototype.__init13.call(this); }
+  // Used to signify the start of a potential arrow function
+  __init() {this.potentialArrowAt = -1}
+
+  // Used by Flow to handle an edge case involving function type parsing.
+  __init2() {this.noAnonFunctionType = false}
+
+  // Used by TypeScript to handle ambiguities when parsing conditional types.
+  __init3() {this.inDisallowConditionalTypesContext = false}
+
+  // Token store.
+  __init4() {this.tokens = []}
+
+  // Array of all observed scopes, ordered by their ending position.
+  __init5() {this.scopes = []}
+
+  // The current position of the tokenizer in the input.
+  __init6() {this.pos = 0}
+
+  // Information about the current token.
+  __init7() {this.type = tt.eof}
+  __init8() {this.contextualKeyword = ContextualKeyword.NONE}
+  __init9() {this.start = 0}
+  __init10() {this.end = 0}
+
+  __init11() {this.isType = false}
+  __init12() {this.scopeDepth = 0}
+
+  /**
+   * If the parser is in an error state, then the token is always tt.eof and all functions can
+   * keep executing but should be written so they don't get into an infinite loop in this situation.
+   *
+   * This approach, combined with the ability to snapshot and restore state, allows us to implement
+   * backtracking without exceptions and without needing to explicitly propagate error states
+   * everywhere.
+   */
+  __init13() {this.error = null}
+
+  snapshot() {
+    return new StateSnapshot(
+      this.potentialArrowAt,
+      this.noAnonFunctionType,
+      this.inDisallowConditionalTypesContext,
+      this.tokens.length,
+      this.scopes.length,
+      this.pos,
+      this.type,
+      this.contextualKeyword,
+      this.start,
+      this.end,
+      this.isType,
+      this.scopeDepth,
+      this.error,
+    );
+  }
+
+  restoreFromSnapshot(snapshot) {
+    this.potentialArrowAt = snapshot.potentialArrowAt;
+    this.noAnonFunctionType = snapshot.noAnonFunctionType;
+    this.inDisallowConditionalTypesContext = snapshot.inDisallowConditionalTypesContext;
+    this.tokens.length = snapshot.tokensLength;
+    this.scopes.length = snapshot.scopesLength;
+    this.pos = snapshot.pos;
+    this.type = snapshot.type;
+    this.contextualKeyword = snapshot.contextualKeyword;
+    this.start = snapshot.start;
+    this.end = snapshot.end;
+    this.isType = snapshot.isType;
+    this.scopeDepth = snapshot.scopeDepth;
+    this.error = snapshot.error;
+  }
+}