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Refactor GenerateFunctions

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Introduce FunctionKind enum to store differences between functions and
extension functions (and possible future function-like classes)

Also remove some useless checks
This commit is contained in:
Alexander Udalov
2013-03-19 22:04:00 +04:00
parent 5150eb1eea
commit 5c777a2f3a
1 changed files with 26 additions and 18 deletions
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generators/org/jetbrains/jet/generators/runtime/GenerateFunctions.java
+26 -18
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@@ -23,25 +23,35 @@ import java.io.PrintStream;
public class GenerateFunctions {
private static final int MAX_PARAM_COUNT = 22;
private static void generateFunctions(PrintStream out, int count, boolean extension) {
private enum FunctionKind {
FUNCTION("Functions.jet", "Function", false),
EXTENSION_FUNCTION("ExtensionFunctions.jet", "ExtensionFunction", true);
private final String fileName;
private final String classNamePrefix;
private final boolean hasReceiverParameter;
private FunctionKind(String fileName, String classNamePrefix, boolean hasReceiverParameter) {
this.fileName = fileName;
this.classNamePrefix = classNamePrefix;
this.hasReceiverParameter = hasReceiverParameter;
}
}
private static void generateFunctions(PrintStream out, int count, FunctionKind kind) {
generated(out);
for (int i = 0; i <= count; i++) {
out.print("public abstract class " + (extension ? "ExtensionFunction" : "Function") + i);
out.print("public abstract class " + kind.classNamePrefix + i);
out.print("<");
if (extension) {
out.print("in T");
if (count > 0) {
out.print(", ");
}
if (kind.hasReceiverParameter) {
out.print("in T, ");
}
for (int j = 1; j <= i; j++) {
out.print("in P" + j);
out.print(", ");
out.print("in P" + j + ", ");
}
out.print("out R> {");
out.println();
out.print(" public abstract fun " + (extension ? "T." : "") +
"invoke(");
out.print(" public abstract fun " + (kind.hasReceiverParameter ? "T." : "") + "invoke(");
for (int j = 1; j <= i; j++) {
out.print("p" + j + ": " + "P" + j);
if (j < i) {
@@ -65,13 +75,11 @@ public class GenerateFunctions {
File baseDir = new File("compiler/frontend/src/jet/");
assert baseDir.exists() : "Base dir does not exist: " + baseDir.getAbsolutePath();
PrintStream functions = new PrintStream(new File(baseDir, "Functions.jet"));
generateFunctions(functions, MAX_PARAM_COUNT, false);
functions.close();
PrintStream extensionFunctions = new PrintStream(new File(baseDir, "ExtensionFunctions.jet"));
generateFunctions(extensionFunctions, MAX_PARAM_COUNT, true);
extensionFunctions.close();
for (FunctionKind kind : FunctionKind.values()) {
PrintStream functions = new PrintStream(new File(baseDir, kind.fileName));
generateFunctions(functions, MAX_PARAM_COUNT, kind);
functions.close();
}
}
private GenerateFunctions() {