root testsuite: build and run original test from Issue 15750.

Author: pnkfelix

Makefile

@@ -0,0 +1,34 @@
+FILES= test.bin
+
+all: $(patsubst %.rs,%.dot,$(FILES))
+
+RUSTC_LIB=$(RUSTC) --crate-type=lib
+
+RUSTC ?= objdir-dbg/x86_64-apple-darwin/stage2/rustc
+
+rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) \
+  $(filter $(subst *,%,$2),$d))
+
+objdir-dbg/x86_64-apple-darwin/stage2/rustc: src/etc/rustc-wrapper.macosx.sh objdir-dbg/x86_64-apple-darwin/stage2/bin/rustc Makefile $(call rwildcard,src/,*.rs)
+	cd objdir-dbg && make-rustc-stage2 --no-libs
+	cp $< $@
+	chmod +x $@
+
+RUST_LOG=rustc::middle::borrowck,rustc::middle::ty,rustc::middle::typeck,rustc::middle::expr_use_visitor,rustc::middle::region,rustc::middle::trans
+
+%.dylib: %.rs Makefile objdir-dbg/x86_64-apple-darwin/stage2/rustc
+	$(RUSTC) $<
+
+%.bin: %.rs Makefile objdir-dbg/x86_64-apple-darwin/stage2/rustc
+	$(RUSTC) $< -L. -o $@
+
+test.bin: plugin.dylib
+
+%.dot: %.rs Makefile objdir-dbg/x86_64-apple-darwin/stage2/rustc
+	$(RUSTC) -Z flowgraph-print-all --pretty flowgraph=% $< -o $@
+
+%.pp: %.rs Makefile objdir-dbg/x86_64-apple-darwin/stage2/rustc
+	$(RUSTC)                        --pretty expanded,identified $< -o $@
+
+%.log: %.rs Makefile objdir-dbg/x86_64-apple-darwin/stage2/rustc
+	RUST_LOG=$(RUST_LOG) RUST_BACKTRACE=1 $(RUSTC_LIB) $< 2> $@

plugin.rs

@@ -0,0 +1,28 @@
+#![crate_type="dylib"]
+#![feature(plugin_registrar, quote)]
+
+// Taken from issue #15750
+
+extern crate syntax;
+extern crate rustc;
+
+use rustc::plugin::Registry;
+
+use syntax::codemap::Span;
+use syntax::ext::base::{ExtCtxt, MacResult, MacExpr};
+use syntax::parse;
+use syntax::ast;
+
+fn expand(cx: &mut ExtCtxt, _span: Span, tts: &[ast::TokenTree])
+        -> Box<MacResult> {
+    // Parse an expression and emit it unchanged.
+    let mut parser = parse::new_parser_from_tts(cx.parse_sess(),
+        cx.cfg(), Vec::from_slice(tts));
+    let expr = parser.parse_expr();
+    MacExpr::new(quote_expr!(&mut *cx, $expr))
+}
+
+#[plugin_registrar]
+pub fn plugin_registrar(reg: &mut Registry) {
+    reg.register_macro("mymacro", expand);
+}

src/etc/rustc-wrapper.macosx.sh

@@ -0,0 +1,4 @@
+DIR=$(dirname $0)
+CMD="DYLD_LIBRARY_PATH=$DIR/lib:$DYLD_LIBRARY_PATH exec $DIR/bin/rustc $@"
+# echo $CMD
+eval "$CMD"

test.rs

@@ -0,0 +1,11 @@
+#![feature(phase)]
+
+// Taken from Issue #15750
+
+#[phase(plugin)]
+extern crate plugin;
+
+fn main() {
+    let x = 3;
+    println!("{}", mymacro!(x));
+}