Add params to Rust functions

3 files changed, 66 insertions, 0 deletions

diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
index 1de04da..dd1729b 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
@@ -141,6 +141,21 @@ public class RustWriterTests {
     }
 
     @Test
+    public void functionWithParams() throws IOException {
+        var rust = RustFunction.arbitrary()
+            .withName(new RustIdentifier("area"))
+            .addParam(new RustFunctionParam(new RustIdentifier("width"), RustTypePath.of("i32")))
+            .addParam(new RustFunctionParam(new RustIdentifier("height"), RustTypePath.of("u64")))
+            .build();
+
+        var string = write(writer -> writer.writeAssociatedItem(rust));
+
+        assertThat(string, equalTo("""
+            fn area(width: i32, height: u64) {
+            }"""));
+    }
+
+    @Test
     public void emptyInherentImpl() throws IOException {
         var rust = RustInherentImpl.arbitrary().withType(RustTypePath.of("Square")).build();
 
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionMatcher.java
index 4777b24..ac6d126 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionMatcher.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionMatcher.java
@@ -34,6 +34,12 @@ public class RustFunctionMatcher implements org.zwobble.precisely.Matcher<java.l
         return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionMatcher(submatchers);
     }
 
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionMatcher withParams(org.zwobble.precisely.Matcher<? super java.util.List<org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam>> params) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunction>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("params", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunction::params, params));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionMatcher(submatchers);
+    }
+
     // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionMatcher body
     // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionMatcher body
 }
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionParamMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionParamMatcher.java
new file mode 100644
index 0000000..64f7101
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustFunctionParamMatcher.java
@@ -0,0 +1,45 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.rust.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher imports
+
+public class RustFunctionParamMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher isRustFunctionParam() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam>> submatchers;
+
+    private RustFunctionParamMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam>> submatchers) {
+        this.submatchers = submatchers;
+    }
+
+    public org.zwobble.precisely.MatchResult match(java.lang.Object actual) {
+        return this.toMatcher().match(actual);
+    }
+
+    public org.zwobble.precisely.TextTree describe() {
+        return this.toMatcher().describe();
+    }
+
+    private org.zwobble.precisely.Matcher<java.lang.Object> toMatcher() {
+        return org.zwobble.precisely.Matchers.instanceOf(org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher withName(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustIdentifier> name) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("name", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam::name, name));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher withType(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustType> type) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("type", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParam::type, type));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustFunctionParamMatcher body
+}