com.shapesecurity.shift.codegen.CodeRepFactory Maven / Gradle / Ivy

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Shift format ECMAScript 6 AST tooling

There is a newer version: 2.2.0

package com.shapesecurity.shift.codegen;

import com.shapesecurity.functional.data.ImmutableList;
import com.shapesecurity.functional.data.Maybe;
import com.shapesecurity.shift.ast.Expression;
import com.shapesecurity.shift.ast.operators.Precedence;

import org.jetbrains.annotations.NotNull;

public class CodeRepFactory {
  protected static final CodeRep[] EMPTY = new CodeRep[0];

  public CodeRepFactory() { }// CodeRep factory methods

  @NotNull
  public CodeRep empty() {
    return new CodeRep.Empty();
  }

  @NotNull
  public CodeRep expr(@NotNull Expression node, @NotNull Precedence precedence, @NotNull CodeRep a) {
    return node.getPrecedence().ordinal() < precedence.ordinal() ? paren(a) : a;
  }

  @NotNull
  public CodeRep token(@NotNull String token) {
    return new CodeRep.Token(token);
  }

  @NotNull
  public CodeRep num(double value) {
    return new CodeRep.Number(value);
  }

  @NotNull
  public CodeRep paren(@NotNull CodeRep rep) {
    return new CodeRep.Paren(rep);
  }

  @NotNull
  public CodeRep bracket(@NotNull CodeRep rep) {
    return new CodeRep.Bracket(rep);
  }

  @NotNull
  public CodeRep noIn(@NotNull CodeRep rep) {
    return new CodeRep.NoIn(rep);
  }

  @NotNull
  public CodeRep testIn(@NotNull CodeRep state) {
    return state.containsIn ? new CodeRep.ContainsIn(state) : state;
  }

  @NotNull
  public CodeRep seq(@NotNull CodeRep[] reps) {
    return new CodeRep.Seq(reps);
  }

  @NotNull
  public CodeRep init(@NotNull CodeRep id, @NotNull Maybe i) {
    return i.maybe(id, init -> new CodeRep.Init(id, init));
  }

  @NotNull
  public CodeRep semi() {
    return new CodeRep.Semi();
  }

  @NotNull
  public CodeRep commaSep(@NotNull CodeRep[] pieces) {
    return new CodeRep.CommaSep(pieces);
  }

  @NotNull
  public CodeRep brace(@NotNull CodeRep rep) {
    return new CodeRep.Brace(rep);
  }

  @NotNull
  public CodeRep semiOp() {
    return new CodeRep.SemiOp();
  }

  @NotNull
  public final CodeRep commaSep(@NotNull ImmutableList reps) {
    return commaSep(reps.toArray(EMPTY));
  }

  @NotNull
  public final CodeRep seq(@NotNull ImmutableList reps) {
    return seq(reps.toArray(EMPTY));
  }
}