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authorstudent <student@localhost>2018-03-05 16:48:38 -0500
committerstudent <student@localhost>2018-03-05 16:48:38 -0500
commit806cba069576e48477d4660a019a49c405cb0195 (patch)
treec1e718b18e660c02a12b5a466a222daf8a435bf4 /base/src/bjc/dicelang/eval/Evaluator.java
parentf9d9bd4bbf7dd6a297e1daf5ee7b4263d706d9cd (diff)
Update
Diffstat (limited to 'base/src/bjc/dicelang/eval/Evaluator.java')
-rw-r--r--base/src/bjc/dicelang/eval/Evaluator.java176
1 files changed, 88 insertions, 88 deletions
diff --git a/base/src/bjc/dicelang/eval/Evaluator.java b/base/src/bjc/dicelang/eval/Evaluator.java
index 4603e22..f754c59 100644
--- a/base/src/bjc/dicelang/eval/Evaluator.java
+++ b/base/src/bjc/dicelang/eval/Evaluator.java
@@ -63,7 +63,7 @@ public class Evaluator {
* Create a new evaluator.
*
* @param en
- * The engine.
+ * The engine.
*/
public Evaluator(final DiceLangEngine en) {
eng = en;
@@ -73,7 +73,7 @@ public class Evaluator {
* Evaluate a AST.
*
* @param comm
- * The AST to evaluate.
+ * The AST to evaluate.
*
* @return The result of the tree.
*/
@@ -83,18 +83,16 @@ public class Evaluator {
ctx.isDebug = false;
ctx.thunk = itr -> {
/*
- * Deliberately finish the iterator, but ignore results.
- * It's only for stepwise evaluation, but we don't know
- * if stepping the iterator has side effects.
+ * Deliberately finish the iterator, but ignore results. It's only for stepwise
+ * evaluation, but we don't know if stepping the iterator has side effects.
*/
- while(itr.hasNext()) {
+ while (itr.hasNext()) {
itr.next();
}
};
/* The result. */
- final ITree<Node> res = comm.topDownTransform(this::pickEvaluationType,
- node -> this.evaluateNode(node, ctx));
+ final ITree<Node> res = comm.topDownTransform(this::pickEvaluationType, node -> this.evaluateNode(node, ctx));
return res.getHead().resultVal;
}
@@ -103,7 +101,10 @@ public class Evaluator {
* @NOTE
*
* This is broken until stepwise top-down transforms are fixed.
+ *
+ * Make it public once we know it works again.
*/
+ @SuppressWarnings("javadoc")
public Iterator<ITree<Node>> stepDebug(final ITree<Node> comm) {
final Context ctx = new Context();
@@ -118,9 +119,9 @@ public class Evaluator {
/* Pick the way to evaluate a node. */
private TopDownTransformResult pickEvaluationType(final Node nd) {
- switch(nd.type) {
+ switch (nd.type) {
case UNARYOP:
- switch(nd.operatorType) {
+ switch (nd.operatorType) {
case COERCE:
/* Coerce does special things to the tree. */
return TopDownTransformResult.RTRANSFORM;
@@ -135,7 +136,7 @@ public class Evaluator {
/* Evaluate a node. */
private ITree<Node> evaluateNode(final ITree<Node> ast, final Context ctx) {
- switch(ast.getHead().type) {
+ switch (ast.getHead().type) {
case UNARYOP:
return evaluateUnaryOp(ast, ctx);
case BINOP:
@@ -155,23 +156,23 @@ public class Evaluator {
/* Evaluate a unary operator. */
private ITree<Node> evaluateUnaryOp(final ITree<Node> ast, final Context ctx) {
/* Unary operators only take one operand. */
- if(ast.getChildrenCount() != 1) {
+ if (ast.getChildrenCount() != 1) {
Errors.inst.printError(EK_EVAL_UNUNARY, Integer.toString(ast.getChildrenCount()));
return new Tree<>(Node.FAIL(ast));
}
- switch(ast.getHead().operatorType) {
+ switch (ast.getHead().operatorType) {
/*
* @TODO 10/09/17 Ben Culkin :CoerceRefactor
*
* :EvaluatorSplit
*
- * Coercing should be moved to its own class, or at the very
- * least its own method. When the evaluator splits, this node
- * type'll be handled exclusively by the type-checker.
+ * Coercing should be moved to its own class, or at the very least its own
+ * method. When the evaluator splits, this node type'll be handled exclusively
+ * by the type-checker.
*
- * Coerce also needs to be able to coerce things to dice and
- * ratios (whenever they get added).
+ * Coerce also needs to be able to coerce things to dice and ratios (whenever
+ * they get added).
*/
case COERCE:
final ITree<Node> toCoerce = ast.getChild(0);
@@ -181,16 +182,16 @@ public class Evaluator {
/* The current type we are coercing to. */
CoerceSteps curLevel = CoerceSteps.INTEGER;
- for(int i = 0; i < toCoerce.getChildrenCount(); i++) {
+ for (int i = 0; i < toCoerce.getChildrenCount(); i++) {
final ITree<Node> child = toCoerce.getChild(i);
ITree<Node> nChild = null;
/* Tell our thunk we processed a node. */
- if(ctx.isDebug) {
+ if (ctx.isDebug) {
/* Evaluate each step of the child. */
final Iterator<ITree<Node>> nd = stepDebug(child);
- for(; nd.hasNext(); nChild = nd.next()) {
+ for (; nd.hasNext(); nChild = nd.next()) {
ctx.thunk.accept(new SingleIterator<>(child));
}
} else {
@@ -200,7 +201,7 @@ public class Evaluator {
ctx.thunk.accept(new SingleIterator<>(nChild));
}
- if(nChild == null) {
+ if (nChild == null) {
Errors.inst.printError(EK_EVAL_INVNODE);
return new Tree<>(Node.FAIL(ast));
}
@@ -209,23 +210,23 @@ public class Evaluator {
final EvaluatorResult res = childNode.resultVal;
/* Move up to coercing to a float. */
- if(res.type == FLOAT) {
+ if (res.type == FLOAT) {
curLevel = CoerceSteps.DOUBLE;
}
children.add(nChild);
}
- for(final ITree<Node> child : children) {
+ for (final ITree<Node> child : children) {
final Node nd = child.getHead();
final EvaluatorResult res = nd.resultVal;
- switch(res.type) {
+ switch (res.type) {
case INT:
/*
* Coerce ints to doubles if we need to.
*/
- if(curLevel == CoerceSteps.DOUBLE) {
+ if (curLevel == CoerceSteps.DOUBLE) {
nd.resultVal = new FloatEvaluatorResult((double) res.intVal);
}
default:
@@ -240,7 +241,7 @@ public class Evaluator {
case DICESCALAR:
final EvaluatorResult opr = ast.getChild(0).getHead().resultVal;
- if(opr.type != INT) {
+ if (opr.type != INT) {
Errors.inst.printError(EK_EVAL_INVDCREATE, opr.type.toString());
}
@@ -249,7 +250,7 @@ public class Evaluator {
case DICEFUDGE:
final EvaluatorResult oprn = ast.getChild(0).getHead().resultVal;
- if(oprn.type != INT) {
+ if (oprn.type != INT) {
Errors.inst.printError(EK_EVAL_INVDCREATE, oprn.type.toString());
}
@@ -266,9 +267,8 @@ public class Evaluator {
final Token.Type binOp = ast.getHead().operatorType;
/* Binary operators always have two children. */
- if(ast.getChildrenCount() != 2) {
- Errors.inst.printError(EK_EVAL_INVBIN, Integer.toString(ast.getChildrenCount()),
- ast.toString());
+ if (ast.getChildrenCount() != 2) {
+ Errors.inst.printError(EK_EVAL_INVBIN, Integer.toString(ast.getChildrenCount()), ast.toString());
return new Tree<>(Node.FAIL(ast));
}
@@ -279,7 +279,7 @@ public class Evaluator {
final EvaluatorResult leftRes = left.getHead().resultVal;
final EvaluatorResult rightRes = right.getHead().resultVal;
- switch(binOp) {
+ switch (binOp) {
case ADD:
case SUBTRACT:
case MULTIPLY:
@@ -302,16 +302,16 @@ public class Evaluator {
/* Evaluate a binary operator on strings. */
private static ITree<Node> evaluateStringBinary(final Token.Type op, final EvaluatorResult left,
final EvaluatorResult right, final Context ctx) {
- if(left.type != STRING) {
+ if (left.type != STRING) {
Errors.inst.printError(EK_EVAL_INVSTRING, left.type.toString());
return new Tree<>(Node.FAIL(left));
}
final String strang = ((StringEvaluatorResult) left).stringVal;
- switch(op) {
+ switch (op) {
case STRCAT:
- if(right.type != STRING) {
+ if (right.type != STRING) {
Errors.inst.printError(EK_EVAL_UNSTRING, right.type.toString());
return new Tree<>(Node.FAIL(right));
}
@@ -321,7 +321,7 @@ public class Evaluator {
return new Tree<>(new Node(Node.Type.RESULT, cres));
case STRREP:
- if(right.type != INT) {
+ if (right.type != INT) {
Errors.inst.printError(EK_EVAL_INVSTRING, right.type.toString());
return new Tree<>(Node.FAIL(right));
}
@@ -329,7 +329,7 @@ public class Evaluator {
String res = strang;
final long count = right.intVal;
- for(long i = 1; i < count; i++) {
+ for (long i = 1; i < count; i++) {
res += strang;
}
@@ -345,7 +345,7 @@ public class Evaluator {
final EvaluatorResult right, final Context ctx) {
EvaluatorResult res = null;
- switch(op) {
+ switch (op) {
/*
* @TODO 10/09/17 Ben Culkin :DiceSimplify
*
@@ -354,27 +354,27 @@ public class Evaluator {
* ADDENDA: Replace the .diceVal.isList() with .isList()
*/
case DICEGROUP:
- if(left.type == DICE && !((DiceEvaluatorResult) left).diceVal.isList()) {
+ if (left.type == DICE && !((DiceEvaluatorResult) left).diceVal.isList()) {
Die lhs = ((ScalarDiceExpression) ((DiceEvaluatorResult) left).diceVal).scalar;
- if(right.type == DICE && !((DiceEvaluatorResult) right).diceVal.isList()) {
+ if (right.type == DICE && !((DiceEvaluatorResult) right).diceVal.isList()) {
Die rhs = ((ScalarDiceExpression) ((DiceEvaluatorResult) right).diceVal).scalar;
Die simple = new SimpleDie(lhs, rhs);
res = new DiceEvaluatorResult(simple);
- } else if(right.type == INT) {
+ } else if (right.type == INT) {
res = new DiceEvaluatorResult(new SimpleDie(lhs, right.intVal));
} else {
Errors.inst.printError(EK_EVAL_INVDGROUP, right.type.toString());
return new Tree<>(Node.FAIL(right));
}
- } else if(left.type == INT) {
- if(right.type == DICE && !((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (left.type == INT) {
+ if (right.type == DICE && !((DiceEvaluatorResult) right).diceVal.isList()) {
Die rhs = ((ScalarDiceExpression) ((DiceEvaluatorResult) right).diceVal).scalar;
res = new DiceEvaluatorResult(new SimpleDie(left.intVal, rhs));
- } else if(right.type == INT) {
+ } else if (right.type == INT) {
res = new DiceEvaluatorResult(new SimpleDie(left.intVal, right.intVal));
} else {
Errors.inst.printError(EK_EVAL_INVDGROUP, right.type.toString());
@@ -386,10 +386,10 @@ public class Evaluator {
}
case DICECONCAT:
- if(left.type != DICE || ((DiceEvaluatorResult) left).diceVal.isList()) {
+ if (left.type != DICE || ((DiceEvaluatorResult) left).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, left.type.toString());
return new Tree<>(Node.FAIL(left));
- } else if(right.type != DICE || ((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (right.type != DICE || ((DiceEvaluatorResult) right).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, right.type.toString());
return new Tree<>(Node.FAIL(right));
} else {
@@ -402,10 +402,10 @@ public class Evaluator {
break;
case DICELIST:
- if(left.type != DICE || ((DiceEvaluatorResult) left).diceVal.isList()) {
+ if (left.type != DICE || ((DiceEvaluatorResult) left).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, left.type.toString());
return new Tree<>(Node.FAIL(left));
- } else if(right.type != DICE || ((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (right.type != DICE || ((DiceEvaluatorResult) right).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, right.type.toString());
return new Tree<>(Node.FAIL(right));
} else {
@@ -428,42 +428,42 @@ public class Evaluator {
/* Evaluate a binary math operator. */
private static ITree<Node> evaluateMathBinary(final Token.Type op, final EvaluatorResult left,
final EvaluatorResult right, final Context ctx) {
- if(left.type == STRING || right.type == STRING) {
+ if (left.type == STRING || right.type == STRING) {
Errors.inst.printError(EK_EVAL_STRINGMATH);
return new Tree<>(Node.FAIL());
- } else if(left.type == FAILURE || right.type == FAILURE) {
+ } else if (left.type == FAILURE || right.type == FAILURE) {
return new Tree<>(Node.FAIL());
- } else if(left.type == INT && right.type != INT) {
+ } else if (left.type == INT && right.type != INT) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(right));
- } else if(left.type == FLOAT && right.type != FLOAT) {
+ } else if (left.type == FLOAT && right.type != FLOAT) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(right));
- } else if(left.type == DICE && right.type != DICE) {
+ } else if (left.type == DICE && right.type != DICE) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(right));
- } else if(right.type == INT && left.type != INT) {
+ } else if (right.type == INT && left.type != INT) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(left));
- } else if(right.type == FLOAT && left.type != FLOAT) {
+ } else if (right.type == FLOAT && left.type != FLOAT) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(left));
- } else if(right.type == DICE && left.type != DICE) {
+ } else if (right.type == DICE && left.type != DICE) {
Errors.inst.printError(EK_EVAL_MISMATH);
return new Tree<>(Node.FAIL(left));
}
EvaluatorResult res = null;
- switch(op) {
+ switch (op) {
case ADD:
- if(left.type == INT) {
+ if (left.type == INT) {
res = new EvaluatorResult(INT, left.intVal + right.intVal);
- } else if(left.type == DICE) {
- if(((DiceEvaluatorResult) left).diceVal.isList()) {
+ } else if (left.type == DICE) {
+ if (((DiceEvaluatorResult) left).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, left.toString());
return new Tree<>(Node.FAIL(left));
- } else if(((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (((DiceEvaluatorResult) right).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, right.toString());
return new Tree<>(Node.FAIL(right));
}
@@ -473,20 +473,20 @@ public class Evaluator {
res = new DiceEvaluatorResult(new MathDie(MathDie.MathOp.ADD, lhs, rhs));
} else {
- res = new FloatEvaluatorResult(((FloatEvaluatorResult) left).floatVal
- + ((FloatEvaluatorResult) right).floatVal);
+ res = new FloatEvaluatorResult(
+ ((FloatEvaluatorResult) left).floatVal + ((FloatEvaluatorResult) right).floatVal);
}
break;
case SUBTRACT:
- if(left.type == INT) {
+ if (left.type == INT) {
res = new EvaluatorResult(INT, left.intVal - right.intVal);
- } else if(left.type == DICE) {
- if(((DiceEvaluatorResult) left).diceVal.isList()) {
+ } else if (left.type == DICE) {
+ if (((DiceEvaluatorResult) left).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, left.toString());
return new Tree<>(Node.FAIL(left));
- } else if(((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (((DiceEvaluatorResult) right).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, right.toString());
return new Tree<>(Node.FAIL(right));
}
@@ -496,20 +496,20 @@ public class Evaluator {
res = new DiceEvaluatorResult(new MathDie(MathDie.MathOp.SUBTRACT, lhs, rhs));
} else {
- res = new FloatEvaluatorResult(((FloatEvaluatorResult) left).floatVal
- - ((FloatEvaluatorResult) right).floatVal);
+ res = new FloatEvaluatorResult(
+ ((FloatEvaluatorResult) left).floatVal - ((FloatEvaluatorResult) right).floatVal);
}
break;
case MULTIPLY:
- if(left.type == INT) {
+ if (left.type == INT) {
res = new EvaluatorResult(INT, left.intVal * right.intVal);
- } else if(left.type == DICE) {
- if(((DiceEvaluatorResult) left).diceVal.isList()) {
+ } else if (left.type == DICE) {
+ if (((DiceEvaluatorResult) left).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, left.toString());
return new Tree<>(Node.FAIL(left));
- } else if(((DiceEvaluatorResult) right).diceVal.isList()) {
+ } else if (((DiceEvaluatorResult) right).diceVal.isList()) {
Errors.inst.printError(EK_EVAL_INVDICE, right.toString());
return new Tree<>(Node.FAIL(right));
}
@@ -519,27 +519,27 @@ public class Evaluator {
res = new DiceEvaluatorResult(new MathDie(MathDie.MathOp.MULTIPLY, lhs, rhs));
} else {
- res = new FloatEvaluatorResult(((FloatEvaluatorResult) left).floatVal
- * ((FloatEvaluatorResult) right).floatVal);
+ res = new FloatEvaluatorResult(
+ ((FloatEvaluatorResult) left).floatVal * ((FloatEvaluatorResult) right).floatVal);
}
break;
case DIVIDE:
- if(left.type == INT) {
- if(right.intVal == 0) {
+ if (left.type == INT) {
+ if (right.intVal == 0) {
Errors.inst.printError(EK_EVAL_DIVZERO);
res = new FailureEvaluatorResult(right);
} else {
res = new EvaluatorResult(FLOAT, left.intVal / right.intVal);
}
- } else if(left.type == FLOAT) {
- if(((FloatEvaluatorResult) right).floatVal == 0) {
+ } else if (left.type == FLOAT) {
+ if (((FloatEvaluatorResult) right).floatVal == 0) {
Errors.inst.printError(EK_EVAL_DIVZERO);
res = new FailureEvaluatorResult(right);
} else {
- res = new FloatEvaluatorResult(((FloatEvaluatorResult) left).floatVal
- / ((FloatEvaluatorResult) right).floatVal);
+ res = new FloatEvaluatorResult(
+ ((FloatEvaluatorResult) left).floatVal / ((FloatEvaluatorResult) right).floatVal);
}
} else {
Errors.inst.printError(EK_EVAL_DIVDICE);
@@ -549,20 +549,20 @@ public class Evaluator {
break;
case IDIVIDE:
- if(left.type == INT) {
- if(right.intVal == 0) {
+ if (left.type == INT) {
+ if (right.intVal == 0) {
Errors.inst.printError(EK_EVAL_DIVZERO);
res = new FailureEvaluatorResult(right);
} else {
res = new EvaluatorResult(INT, (int) (left.intVal / right.intVal));
}
- } else if(left.type == FLOAT) {
- if(((FloatEvaluatorResult) right).floatVal == 0) {
+ } else if (left.type == FLOAT) {
+ if (((FloatEvaluatorResult) right).floatVal == 0) {
Errors.inst.printError(EK_EVAL_DIVZERO);
res = new FailureEvaluatorResult(right);
} else {
- res = new EvaluatorResult(INT, (int) (((FloatEvaluatorResult) left).floatVal
- / ((FloatEvaluatorResult) right).floatVal));
+ res = new EvaluatorResult(INT,
+ (int) (((FloatEvaluatorResult) left).floatVal / ((FloatEvaluatorResult) right).floatVal));
}
} else {
Errors.inst.printError(EK_EVAL_DIVDICE);
@@ -583,7 +583,7 @@ public class Evaluator {
private ITree<Node> evaluateTokenRef(final Token tk, final Context ctx) {
EvaluatorResult res = null;
- switch(tk.type) {
+ switch (tk.type) {
case INT_LIT:
res = new EvaluatorResult(INT, tk.intValue);
break;